Patent Application
20240269452
Some embodiments disclosed herein relate to medical connector.
Although various medical connectors exist there remains a need for improved medical connectors.
Without limiting the scope of the claims, certain example embodiments are summarized below for illustrative purposes. Embodiments may include several novel features, no single one of which is solely responsible for its desirable attributes or which is essential to the embodiments.
In accordance with some aspects of the disclosure, a medical connector can include a housing that has first, second, third, and fourth sidewall sections. The second and fourth sidewall sections can have protrusions that extend inwardly. The second and fourth sidewall sections can be configured to be pressed inwardly towards each other to transition the medical connector from a disengaged state to an engaged state when an external force is applied. The second and fourth sidewall sections can be configured to automatically move outwardly away from each other to transition the medical connector from the engaged state to the disengaged state when the external force is removed. The connector can have a proximal end portion that can have a connection fitting configured to couple to another connector by rotation of the other connector relative to the proximal end portion in a tightening direction. The proximal end portion can include protrusions configured to engage the protrusions on the second and fourth sidewall sections of the housing when the medical connector is in the engaged state to impede rotation of the proximal end portion relative to the housing in the tightening direction to facilitate coupling of the other connector to the proximal end portion. The protrusions on the proximal end portion can be configured to not engage the protrusions on the second and fourth sidewall sections of the housing when the medical connector is in the disengaged state, so that the proximal end portion rotates relative to the housing in the tightening direction and in a loosening direction opposite the tightening direction.
In accordance with some aspects of the disclosure, a medical connector can include a first portion (e.g., first housing portion) with a first opening, a second portion (e.g., second housing portion) with a second opening, a fluid pathway extending between the first opening and the second opening, and a rotation mechanism having a first configuration and a second configuration. The first configuration can permit rotation of the first portion relative to the second portion in a first direction and in a second direction. The second configuration can impede rotation of the first portion relative to the second portion in the second direction. The rotation mechanism can be in the first configuration by default.
In accordance with some aspects of the disclosure, a medical fluid transfer device can include a threaded connection fitting configured to couple to a first medical implement by rotation of the first medical implement in a tightening direction relative to the threaded connection fitting. The threaded connection fitting can include one or more first engagement features. The device can have a fluid pathway for transferring fluid through the device. The device can have a housing that includes at least one movable section with one or more second engagement features. The movable section can have an engaged configuration and a disengaged configuration. The engaged configuration can have the one or more second engagement features positioned to engage with the one or more first engagement features to impede the threaded connection fitting from rotating in the tightening direction relative to the housing to facilitate coupling of the first medical implement to the threaded connection fitting. The engaged configuration can permit the threaded connection fitting to rotate in a loosening direction relative to the housing to impede unintended disconnection of the first medical implement from the threaded connection fitting. The disengaged configuration can position the second engagement features to be disengaged from the first engagement features so that the threaded connection fitting can rotate relative to the housing in the tightening direction and in the loosening direction.
In accordance with some aspects of the disclosure, a medical connector can include a first connector portion that includes a first opening and one or more first engagement features, a second connector portion that includes a second opening and one or more second engagement features, a fluid pathway between the first opening and the second opening and configured for transferring fluid through the medical connector, and an engagement member that has one or more inner engagement features and one or more outer engagement features. The one or more inner engagement features can be configured to interface with the one or more first engagement features on the first connector portion. The one or more outer engagement features can be configured to interface with the one or more second engagement features on the second connector portion. The medical connector can permit rotation of the first connector portion relative to the second connector portion in a first direction while impeding rotation of the first connector portion relative to the second connector portion in a second direction that is opposite the first direction.
In accordance with some aspects of the disclosure, a medical connector can include a proximal portion with a proximal opening, a distal portion with a distal opening, a fluid pathway extending between the proximal opening and the distal opening, and a rotation mechanism that permits rotation of the proximal portion relative to the distal portion. The medical connector can include any of the various features disclosed herein.
In accordance with some aspects of the disclosure, a medical connector can include a housing comprising first, second, third, and fourth sidewall sections, wherein the second and fourth sidewall sections can include protrusions that extend inwardly, wherein the second and fourth sidewall sections can be configured to be pressed inwardly towards each other to transition the medical connector from a disengaged state to an engaged state when an external force is applied, and wherein the second and fourth sidewall section are configured to automatically move outwardly away from each other to transition the medical connector from the engaged state to the disengaged state when the external force is removed. A proximal end portion can include a connection fitting configured to couple to another connector by rotation of the other connector relative to the proximal end portion in a tightening direction. The proximal end portion can include protrusions configured to engage the protrusions on the second and fourth sidewall sections of the housing when the medical connector is in the engaged state to impede rotation of the proximal end portion relative to the housing in the tightening direction to facilitate coupling of the other connector to the proximal end portion. The protrusions on the proximal end portion can be configured to not engage the protrusions on the second and fourth sidewall sections of the housing when the medical connector is in the disengaged state, so that the proximal end portion rotates relative to the housing in the tightening direction and in a loosening direction opposite the tightening direction.
The medical connector can be configured to permit rotation of the proximal end portion relative to the housing in the loosening direction when the medical connector is in the engaged state, such as to impede disconnection of the other connector from the proximal end portion. The protrusions on the proximal end portion and/or the protrusions on the housing can be configured to deform to permit the proximal end portion to rotate relative to the housing in the loosening direction when the medical connector is in the engaged state. Either the protrusions on the proximal end portion and/or the protrusions on the housing can include pawls that are configured to flex to permit the protrusions on the proximal end portion to rotate past the protrusions on the distal end portion in the loosening direction when the medical connector is in the engaged state. The medical connector can be configured such that when the medical connector is in the engaged state, rotating the proximal end portion relative to the housing in the loosening direction by a force that is below a disconnection threshold for loosening or removing the attached other connector from the proximal end portion causes the protrusions on the proximal end portion to rotate past the protrusions on the housing, such as to thereby impede disconnection of the other connector from the proximal end portion. The protrusions on the proximal end portion can include flexible pawls. The protrusions on the second the fourth sidewall sections of the housing can include flexible pawls.
The first and third sidewall sections can define stop surfaces that limit the distance that the second and fourth sidewall sections can be pressed inwardly towards each other. The first and third sidewall sections can be positioned to abut against the second and fourth sidewall sections when the medical connector is in the engaged state, such as to limit engagement between the protrusions so that the proximal end portion can rotate in the loosening direction relative to the housing. The connection fitting on the proximal end portion can be a luer lock fitting. The connection fitting on the proximal end portion can be a female luer lock fitting. The connection fitting on the proximal end portion can be a female luer. The connection fitting on the distal end portion can be a male luer (e.g., a male luer lock fitting). In some implementations, the proximal end portion does not move axially relative to the housing. Gaps can separate the first, second, third, and fourth sidewall sections. The protrusions on the housing can be configured to directly contact the protrusions on the proximal end portion in the engaged state.
The medical connector can include an engagement member that has one or more inner engagement elements that are configured to interface with the protrusions on the proximal end portion, and the engagement member can have one or more outer engagement elements that are configured to interface with the protrusions on the housing. The proximal end portion can include a first opening, the housing can include a second opening, and the medical connector can include a fluid pathway between the first opening and the second opening. The medical connector can include a valve member configured to move between a closed position that closes the fluid pathway and an open position that opens the fluid pathway. The valve member can include a fluid channel. A proximal end of the valve member can extend into the proximal end portion. The medical connector can include a seal member configured to provide a fluid seal between an exterior of the valve member and an interior of the proximal end portion. The medical connector, can include a biasing member configured to bias the valve member toward the cloased position. The biasing member can include a first securing portion that can be coupled to the housing, a second securing portion that can be coupled to the valve member, and one or more resilient straps that can couple the first securing portion to the second securing portion. The second securing portion can move away from the first securing portion as the valve member moves from the closed position toward the open position, thereby stretching the one or more resilient straps. The biasing member can be a spring.
In accordance with some aspects of the disclosure, a medical connector can include a first portion with a first opening; a second portion with a second opening; a fluid pathway extending between the first opening and the second opening; and a rotation mechanism having a first configuration and a second configuration. The first configuration can permit rotation of the second portion relative to the first portion in a first direction and in a second direction that is opposite the first direction. The second configuration can impede rotation of the second portion relative to the first portion in the second direction.
The rotation mechanism can be in the first configuration by default. The second configuration of the rotation mechanism can permit rotation of the second portion relative to the first portion in the first direction and can impede rotation of the second portion relative to the first portion in the second direction. The second portion can be configured to couple to a medical implement by rotation of the medical implement in the second direction (e.g., for threaded engagement between the medical implement and the second portion). The rotation mechanism can be configured to transition between the first configuration and the second configuration without axial movement of the second portion relative to the first portion. The rotation mechanism can include one or more engagement elements on the first portion that are configured to engage engagement elements on the second portion when the rotation mechanism is in the second configuration, for example so that the second portion is impeded from rotating relative to the first portion in the second direction. The one or more engagement elements on the first portion or the one or more engagement elements on the second portion can be configured to flex to permit the one or more engagement elements on the second portion to rotate in the first direction past the one or more engagement elements on the first portion when the rotation mechanism is in the second configuration. The one or more engagement elements on the first portion can be configured to directly contact the one or more engagement elements on the second portion when the rotation mechanism is in the second configuration. The one or more engagement elements on the second portion can be configured to rotate without contacting the one or more engagement elements on the first portion when the rotation mechanism is in the first configuration.
The rotation mechanism can include an engagement member that can have one or more inner engagement elements that are configured to interface with the one or more engagement elements on the second portion, and the engagement member can have one or more outer engagement elements that are configured to interface with the one or more engagement elements on the first portion. The engagement member can include a body portion that has a substantially circular shape. The engagement member can be configured to be deformed away from the substantially circular shape when the rotation mechanism is in the second configuration.
The first portion can include one or more movable sections that can be actuated by a user to move the one or more engagement elements on the first portion towards the one or more engagement elements on the second portion, such as to transition the rotation mechanism to the second configuration. The first portion can include at least one stop to limit the distance that the one or more movable sections can be actuated. The second configuration of the rotation mechanism can impede rotation of the second portion relative to the first portion in the first direction and in the second direction.
In some implementations, the second portion can move axially relative to the first portion to transition the rotation mechanism between the first configuration and the second configuration. A biasing member can be configured to bias the first portion toward an axial position that produces the first configuration of the rotation mechanism. The first portion can include one or more protrusions or recesses that engage one or more corresponding recesses or protrusions on the second portion when the rotation mechanism is in the second configuration. The one or protrusions or recesses can be disengaged from the one or more corresponding recesses or protrusions when the rotation mechanism is in the first configuration.
The medical connector can include a valve having a closed configuration that closes the fluid pathway and an open configuration that opens the fluid pathway. The valve member can include a fluid channel. The connector can include a first seal member, which can be configured to provide a fluid seal between an exterior of the valve member and the first portion of the connector. The connector can include a second seal member, which can be configured to provide a fluid seal between an exterior of the valve member and the second portion of the connector. A biasing member can be configured to bias the valve to the cloased configuration. The biasing member can include a first securing portion coupled to the first portion of the connector, a second securing portion coupled to the valve, and one or more resilient straps that couple the first securing portion to the second securing portion.
The first portion can be configured to connect to a first medical implement, and the second portion can be configured to connect to a second medical implement. The medical connector can be configured to transfer fluid between the first medical implement and the second medical implement. The second portion can include a luer lock fitting. The first portion can include a luer lock fitting. The second portion can include a female luer lock fitting, and the first portion can include a male luer lock fitting.
In accordance with some aspects of the disclosure, a medical fluid transfer device can include a threaded connection fitting that can be configured to couple to a medical implement by rotation of the medical implement in a tightening direction relative to the threaded connection fitting. The threaded connection fitting can include one or more first engagement features. The medical connector can include a fluid pathway for transferring fluid through the device. The medical connector can include a housing that can include at least one movable section with one or more second engagement features, and the movable section can have an engaged configuration and a disengaged configuration. The engaged configuration can have the one or more second engagement features positioned to engage with the one or more first engagement features to impede the threaded connection fitting from rotating in the tightening direction relative to the housing, such as to facilitate coupling of the medical implement to the threaded connection fitting. The engaged configuration can permit the threaded connection fitting to rotate in a loosening direction relative to the housing, such as to impede unintended disconnection of the medical implement from the threaded connection fitting. The disengaged configuration can position the second engagement features to be disengaged from the first engagement features so that the threaded connection fitting can rotate relative to the housing in the tightening direction and in the loosening direction.
The one or more first engagement features or the one or more second engagement features can be configured to flex to permit the first engagement features to rotate past the second engagement features in the loosening direction. The one or more first engagement features or the one or more second engagement features can be configured to flex radially. The threaded connection fitting can be locked against axial movement relative to the housing. The movable section of the housing can be configured to move radially to transition between the engaged configuration and the disengaged configuration. The movable section of the housing can be biased toward the disengaged configuration. A stop can limit the distance that the movable section of the housing can be moved. The at least one movable section can include two opposing sidewall sections configured to be pinched together to transition to the engaged configuration.
The medical connector can include a valve member, which can be configured to move between a closed position that closes the fluid pathway and an open position that opens the fluid pathway. The valve member can include a fluid channel with an opening at an end of the valve member. The end of the valve member can be disposed in inside of the threaded connection fitting. A seal member can be configured to provide a fluid seal between an exterior of the valve member and an interior of the threaded connection fitting. The medical connector can include a biasing member to bias the valve member toward the closed position. The biasing member can include a first securing portion coupled to the housing, a second securing portion coupled to the valve member, and one or more resilient portions or straps that couple the first securing portion to the second securing portion. The second securing portion can move away from the first securing portion as the valve member moves from the closed position toward the open position, thereby stretching the one or more resilient straps.
In accordance with some aspects of the disclosure, a medical connector can include a firs housing portion with a first opening, a second housing portion with a second opening, a fluid pathway extending between the first opening and the second opening, and a rotation mechanism that permits rotation of the second housing portion relative to the first housing portion. The medical connector can include any of the features disclosed herein.
In accordance with some aspects of the disclosure, a medical connector can include a first housing portion having a hollow projection. The first housing portion can an interior volume. The medical connector can include a second housing portion, which can be partially disposed in the interior volume of the first housing portion, the second housing portion coupled to the first housing portion so as to permit the second housing portion to rotate relative to the first housing portion in at least a first direction. The connector can include a valve member that includes a fluid channel having a first end that is disposed inside the hollow projection and a second end that is disposed inside the second housing portion. The valve member can be movable between a closed configuration and an open configuration. The connector can include a biasing member configured to bias the valve member toward the closed configuration.
The first housing portion can include a male luer. The second housing portion can include a female luer. The second housing portion can include a syringe body portion, vial adapter body portion, or a bag spike body portion. The medical connector can include a seal member configured to provide a fluid seal between an exterior of the valve member and an interior of the second housing portion. The connector can include a seal member configured to provide a fluid seal between an exterior of the valve member and an interior of the first housing portion. The medical connector can be configured to permit the second housing portion to rotate relative to the first housing portion in a second direction that is opposite the first direction. The medical connector can be configured to impede rotation of the second housing portion relative to the first housing portion in a second direction that is opposite the first direction. The connector can have a first configuration in which the second housing portion is permitted to rotate relative to the first housing portion in both the first direction and in a second direction that is opposite the first direction, and the connector can have a second configuration in which the second housing portion is permitted to rotate relative to the first housing portion in the first direction and where the second housig portion is impeded from rotating relative to the first housing portion in the second direction. The second housing portion can be configured to couple to a medical implement by rotation of the medical implement in the second direction. The medical connector can include a biasing member configured to bias the valve member toward the closed position. The biasing member can include a first securing portion coupled to the housing, a second securing portion coupled to the valve member, and one or more resilient straps that couple the first securing portion to the second securing portion, wherein the second securing portion moves away from the first securing portion as the valve member moves from the closed position toward the open position, thereby stretching the one or more resilient straps. The second housing portion can extend longitudinally out of the first housing portion by a distance between about 3 mm and about 9 mm, in some implementations. A first part of the second housing portion can be received into the first housing portion, and a second part of the second housing portion can extend out of the first housing portion. The second part of the second housing portion can include a female luer lock with external threading. In some cases, the second housing portion does not have any protrusions other than the external threading of the female luer lock. When a standard male lure lock connector is coupled to the second housing portion, the standard male lure lock connector can be spaced away from the first housing portion by a gap of less than 7 mm, such as a gap between about 1 mm and about 3 mm. A structure to impede rotation of the second housing portion relative to the first housing portion (e.g., one or more pawls, protrusions, or teeth) is disposed inside of the first housing portion.
In accordance with some aspects of the disclosure, a medical connector can include a first connector portion that includes a first opening and one or more first engagement features, a second connector portion that includes a second opening and one or more second engagement features, a fluid pathway between the first opening and the second opening and configured for transferring fluid through the medical connector, and an engagement member that has one or more inner engagement features and one or more outer engagement features. The one or more inner engagement features can be configured to interface with the one or more first engagement features on the first connector portion. The one or more outer engagement features can be configured to interface with the one or more second engagement features on the second connector portion. The medical connector can permit rotation of the first connector portion relative to the second connector portion in a first direction while impeding rotation of the first connector portion relative to the second connector portion in a second direction that is opposite the first direction.
The engagement member can be keyed with a portion of the first connector portion, for example so that the engagement member rotates with the first connector portion in the first direction and/or the second direction. The engagement member can be configured to rotate relative to the first connector portion until the one or more first engagement features on the first connector portion engage the one or more inner engagement features on the engagement member. The engagement member can be configured to rotate relative to the second connector portion until the one or more second engagement features on the second connector portion engage the one or more outer engagement features on the engagement member.
Embodiments of this disclosure will now be described, by way of non-limiting example, with reference to the accompanying drawings.
The various features and advantages of the systems, devices, and methods of the technology described herein will become more fully apparent from the following description of the examples illustrated in the figures. These examples are intended to illustrate the principles of this disclosure, and this disclosure should not be limited to merely the illustrated examples. The features of the illustrated examples can be modified, combined, removed, and/or substituted as will be apparent to those of ordinary skill in the art upon consideration of the principles disclosed herein.
The connector 2002 can have a distal end 2004, which can include a male luer (e.g., similar to the male luer tip 122 of the ′712 Publication). The male luer can be surrounded by a shroud, which can have internal threading, such as to engage threading or protrusion(s) on a corresponding female luer. The shroud can be part of the housing 2010. In some embodiments, the distal end 2004 can be integral with, or functionally unitary with (e.g., separately formed but joined to move together), the housing 2010. The distal end 2004 can have a distal opening, such as at the end of the male luer.
The connector 2002 can have a proximal end 2014, which can be a female luer. The proximal end 2014 can be similar to the second end 112 or first cap component 132 of the ′712 Publication. The proximal end 2014 can have external threading or protrusions, such as to engage a locking male luer of another connector. The proximal end 2014 can have a proximal opening, such as at the end of the female luer.
A fluid pathway 2008 can extend between the distal end 2004 and the proximal end 2014 of the connector 2002, such as to enable fluid to be transferred through the connector 2002. In some embodiments, the fluid pathway within the connector 2002 may be continuous or without interruption between the distal end 2004 and proximal end 2014. The connector 2002 can have a closure system 2006, which can include a valve or seal. The closure system 2006 can have an open configuration, which can enable fluid to flow through the fluid pathway 2008, such as between the distal end 2004 and the proximal end 2014. The closure system 2006 can have a closed configuration, which can impede fluid from flowing through the fluid pathway 2008. For example, the closure system 2006 can close the distal end 2004 of the connector 2002, in some embodiments, although any suitable closure system can be used. In some embodiments, the closure system 2006 can automatically transition to the open configuration when a corresponding connector is attached to the connector 2002 (e.g., to the distal end 2004). The closure system 2006 can automatically transition to the closed configuration when a corresponding connector is detached from the connector 2002 (e.g., from the distal end 2004).
The closure system 2006 can include a valve member (e.g., which can be similar to the valve member 116 in the ′712 Publication). The valve member can move axially between a closed configuration or distal position, which can seal an inside of the male luer, and an open configuration or proximal position, which can open the male luer.
The connector 2002 can have a housing 2010 (e.g., which can be similar to the male housing 123 of the ′712 Publication). The housing 2010 can be generally cylindrical and can define an interior space therein. The interior space can contain at least part of the distal end 2004, the closure system 2006, the fluid pathway 2008, and/or the proximal end 2014. The housing 2010 can be configured to be gripped by the user, such as to rotate the connector 2002 relative to another medical implement (e.g., a mating connector) that is being coupled to the connector 2002.
The connector 2002 can include a rotation mechanism 2012, which can be configured to enable the proximal end 2014 of the connector 2002 to rotate relative to the housing 2010 and/or relative to the distal end 2004. In some embodiments, the rotation mechanism 2012 can be configured to permit rotation of the proximal end 2014 in a first direction (e.g., counterclockwise) and to impede rotation of the proximal end 2014 in a second direction (e.g., clockwise). In some embodiments, the rotation mechanism 2012 can have a free-spin configuration that enables the proximal end 2014 to rotate in both directions relative to the housing 2010 and/or distal end 2004.
In some embodiments, the housing 2010 can include a distal portion 2016 and a proximal portion 2018. The distal portion 2016 can be joined to the proximal portion 2018 so that they move together, and can be considered one functional component, in some embodiments. For example, the distal portion 2016 can coupled to the proximal portion 2018 by sonic welding, adhesive, screw threads, pins, snap fit features, friction fit features, or the like. The proximal portion 2018 of the housing 2010 can engage the proximal end member 2014. In some embodiments, the rotation mechanism 2012 can include elements that engage between the proximal portion 2018 of the housing 2010 and the proximal end member 2014.
The proximal end portion 2014 can include a flange 2024. The female luer 2020 can extend proximally from the flange 2024. An interior lumen 2026 can extend distally from the flange 2024. A portion of the fluid pathway 2008 can extend from the female luer 2020 and through the interior lumen 2026. In some embodiments, a seal 2028 (e.g., an O-ring) can form a seal between the outside of the interior lumen 2026 and an inside surface of the valve member of the closure system 2006, which can be configured to slide axially relative to the interior lumen 2026.
The proximal portion 2018 of the housing 2010 can have a generally cylindrical sidewall 2030 and a flange 2032, which can extend inward from a distal end of the sidewall 2030. An opening 2034 can extend through the flange 2032, such as at a center of the flange 2032. The interior lumen 2026 can extend through the opening 2034. In some embodiments, a notch or groove 2031 on the interior lumen 2026 can engage the flange 2032, which can couple the proximal end portion 2014 to the housing 2010. In some embodiments, the engagement between the groove on the interior lumen 2026 and the flange 2032 on the housing 2010 can enable the proximal end portion 2014 to rotate relative to the housing 2010 but not move axially relative to the housing 2010. The inside of the sidewall 2030 can include one or more teeth 2036. In the illustrated embodiment, three teeth 2036 are distributed (e.g., evenly spaced) around the inside of the proximal portion 2018 of the housing 2010, although any suitable number of teeth 2036 (e.g., 1, 2, 3, 4, 5, 6, 8, 10, 12, or more) can be used.
The connector 2002 can include an engagement member 2040 (e.g., which can be an engagement disc or cylinder). The engagement member 2040 can be configured to fit in a space formed between the sidewall 2030 of the housing 2010 can the interior lumen 2026 of the proximal end portion 2014. The engagement member 2040 can include one or more teeth 2042, which can be configured to engage with the teeth 2036. In the illustrated embodiment, three teeth 2042 are distributed (e.g., evenly spaced) around the engagement member 2040, although any suitable number of teeth 2042 (e.g., 1, 2, 3, 4, 5, 6, 8, 10, 12, or more) can be used. The engagement member 2040 can have an inner ring 2044 and an outer ring 2046. The teeth 2042 can be formed on the outer surface of the outer ring 2046. Gaps 2048 can be disposed between the outer ring 2046 and the inner ring 2044 so that the teeth 2042 can be displaced inwardly. A gap 2048 can be disposed inward of each of the teeth 2042. Supports 2050 can couple the inner ring 2044 to the outer ring 2046, and the supports 2050 can separate the gaps 2048.
Each of the one or more teeth 2042 can have an engagement surface (e.g., which can extend generally radially outwardly). A line normal to the engagement surface can extend substantially tangentially from the engagement member 2040. Each of the one or more teeth 2040 can include a sliding surface (e.g., on a back side of the engagement surface). A line normal to the sliding surface can extend in a direction that is offset from a radially outward direction by an angle of about 5 degrees to about 45 degrees. Each of the one or more teeth 2036 on the housing 2010 can have an engagement surface (e.g., which can extend generally radially outwardly). A line normal to the engagement surface can extend substantially tangentially from the curvature of the housing 2010. Each of the one or more teeth 2036 can include a sliding surface (e.g., on a back side of the engagement surface). A line normal to the sliding surface can extend in a direction that is offset from a radially outward direction by an angle of about 5 degrees to about 45 degrees. The engagement surfaces of the teeth 2036 can face in an opposite direction as the engagement surfaces of the teeth 2042, so that the engagement surfaces abut against each other when the engagement member 2040 rotates relative to the housing 2010 in a second direction (e.g., clockwise). The sliding surfaces of the teeth 2036 and 2042 can slide over each other when the engagement member 2040 rotates relative to the housing 2010 in a first direction (e.g., counterclockwise). As the sliding surface press against each other, the gap 2048 can at least partially collapse so that the tooth 2042 moved radially inward to enable the sliding surface of the tooth 2042 to slide past the sliding surface of the tooth 2036. When the sliding surface pass each other, the tooth 2042 can snap radially outward as the gap 2048 returns to its default size. The teeth 2042 can be biased toward engagement with the teeth 2036 (e.g., radially outwardly).
The engagement member 2040 can have a keyed opening 2052, such as at a center of the engagement member 2040. A corresponding keyed portion 2054 on the interior lumen 2026 can be configured to engage the keyed opening 2052 on the engagement member 2040, so that the engagement member 2040 and the proximal end portion 2014 rotate together. In
The connector 2002 can be configured to enable another connector (e.g., a mating connector) to couple to the proximal end portion 2014, and the connector 2002 can be configured to impede the other connector from being decoupled from the proximal end portion 2014. When another (e.g., mating) connector is being attached to the proximal end portion 2014 the other (e.g., mating) connector can be rotated in a tightening direction (e.g., clockwise) relative to the connector 2002 while the user grips the housing 2010. Friction between the other connector and the threading 2022 or the female luer 2020 can cause the proximal end portion 2014 to rotate in the tightening direction (e.g., clockwise) relative to the housing 2010. Once the engagement surfaces of the teeth 2036 and 2042 engage each other, the proximal end portion 2014 can be impeded from rotating in the tightening direction (e.g., clockwise) relative to the housing 2010. Stated another way, the teeth 2036 and 2042 can cause the housing 2010 and proximal end portion 2014 to rotate together in the tightening direction (e.g., clockwise). The user can twist the other connector and/or the housing 2010 of the connector 2002 so that the other connector engages the proximal end portion 2014, such as with a male luer tip that engages (e.g., sealingly engages) the female luer 2020 (e.g., to form a fluid pathway).
If rotation in the loosening direction (e.g., counter clockwise) is applied between the connector 2002 and the other connector, the sliding surface of the teeth 2036 and 2042 can slide over each other, and the teeth 2042 can be displaced inward, so that the proximal end portion 2014 (e.g., and the other connector attached thereto) can be permitted to rotate relative to the housing 2010. Thus, applying rotation in the loosening direction can merely cause the connectors to spin relative to each other, without loosening and/or without disengaging.
In some embodiments, the flange 2024 can be exposed and can be used to disengage the other connector from the connector 2002. For example, the housing 2010 can end without covering the flange 2024. The flange 2024 can be disposed proximally of the housing 2010. In some embodiments, the user can grip or otherwise engage the flange 2024 to hold the proximal end portion 2014 while the other connector is rotated in the loosening direction relative to the proximal end portion 2014. Thus, the connector 2002 can enable disengagement from the other connector by affirmative disengagement action by the user. The connector 2002 can impede unintended disengagement such as by bumping of the connectors or line twist, etc.
When the engagement member 2040 is rotated in a tightening direction (e.g., clockwise) relative to the housing 2010, such as when coupling another connector to the proximal end portion 2014, the engagement surfaces on the pawls 2047 can engage with the engagement surfaces of the teeth 2036 so that the engagement member 2040 does not rotate relative to the housing 2010 (e.g., to enable attachment of the other connector to the proximal end portion 2014). When the engagement member 2040 is rotated in a loosening direction (e.g., counter clockwise) relative to the housing, such as when the other connector is turned in a loosening direction, the sliding surfaces of the pawls 2047 can slide against the sliding surfaces of the teeth 2036, and the pawls 2047 can flex inwardly to enable the engagement member 2040 to rotate relative to the housing 2010.
The housing 2010 can have a generally cylindrical sidewall 2030, with a flange 2032 (e.g., an internal flange) that extends inwardly from the side wall 2030, with an opening 2034 in the flange 2032. An interior lumen 2026 of the proximal end portion 2014 can pass through the opening 2034 in the internal flange 2032. One or more tabs 2033 can extend inward from the sidewall 2030, such as at or near the proximal end of the housing 2010. The flange 2024 of the proximal end portion 2014 can be recessed into the housing 2010. The flange 2024 can be positioned on a distal side of the one or more tabs 2033, so that the tabs 2033 can hold the flange 2024 inside the housing 2010 (e.g., without impeding rotation of the proximal end portion 2014 relative to the housing 2010). The tabs 2033 and/or the flange 2024 can be configured to flex sufficiently to enable the flange 2024 to be inserted distally past the one or more tabs 2033, such as for a snap fit engagement. The housing can include openings 2035 formed in the sidewall 2030, which openings 2035 can at least partially align with the tabs 2033. The openings 2035 can facilitate flexing of the housing 2010 (e.g., the sidewall 2030) so that the tabs 2033 can be displaced sufficiently for the flange 2024 of the proximal end portion 2014 to be inserted into the housing 2010. The proximal-facing sides of the tabs 2033 can be angled, and/or the distal-facing side of the flange 2024 can be angled, so that when the flange 2024 is pressed distally against the tabs 2033, the tabs can be displaced outwardly.
The inside surface of the sidewall 2030 can include one or more protrusions or teeth 2036. The outside surface of the interior lumen 2026 of the proximal end portion 2014 can include one or more protrusions or teeth 2027. In the illustrated embodiment, 4 protrusions or teeth are shown, but any suitable number (e.g., 1, 2, 3, 4, 6, 8, 10, 12, or more) can be used. The protrusions 2036 on the housing 2010 are not configured to engage the protrusions 2027 on the proximal end portion 2014 directly. Rather, an engagement member 2040 can be positioned between the protrusions 2036 on the housing 2010 and the protrusions 2027 on the proximal end portion 2014.
The engagement member 2040 can have a plurality of body portions 2056, which can each be an arcuate segment, which can be positioned along an arcuate path. A plurality of arms 2058 can be disposed between the body portions 2056. The arms 2058 can be rotatably coupled to the body portions 2056 at junctions 2060 (e.g., which can be living hinges). For example, the junctions 2060 can have a thickness that is less than the thickness of the body portion(s) 2056 and/or that is less than the thickness of the arm(s) 2058. The junctions 2060 can be configured to permit the arms 2058 to pivot or rotate between positions. The arm(s) 2058 can have an outer portion, which can be disposed outward of the junction 2060, and which can be configured to selectively engage the protrusion(s) 2036 on the housing 2010. The arm(s) 2058 can have an inner portion, which can be disposed inward of the junction 2060, and which can be configured to selectively engage the protrusion(s) 2027 on the proximal end portion 2014.
The arms 2058 can have a rotation configuration (e.g., shown in
A first junction 2060 (e.g., a first living hinge) can be on a first side of the arm 2058 and can join the arm 2058 to a first body portion 2056. A second junction 2060 (e.g., a second living hinge) can be on a second side of the arm 2058 and can join the arm 2058 to a second body portion 2056. The first body portion 2056 on the first side of the arm 2058 can have a stopper surface 2062 on a first (e.g., radially inward) side of the junction 2060. The second body portion 2056 on the second side of the arm 2058 can have a stopper surface 2062 on a second (e.g., radially outward) side of the junction 2060. The first body portion 2056 on the first side of the arm 2058 can have a recess 2064 on a second (e.g., radially outward) side of the junction 2060. The second body portion 2056 on the second side of the arm 2058 can have a recess 2064 on a first (e.g., radially inward) side of the junction 2060.
As shown in
As shown in
From the configuration shown in
In some embodiments, a ridge 2066 can be disposed on a distal side of the flange 2024, such as along an arcuate path. The body portions 2056 of the engagement member 2040 can fit inside of the ridge 2066. The ridge 2066 can be configured to hold the engagement member 2040 in a substantially concentric position relative to the housing 2010, proximal end portion 2014, and/or other components of the connector 2002. The body portions 2056 can extend proximally further than the arms 2058, so that the arms 2058 can pass over the ridge 2066.
The housing 2010 can include a sidewall 2030, a flange 2032 that extends inwardly from the side wall 2030, and an opening 2034 through the flange 2032. A distal portion of the interior lumen 2026 can extend through the opening 2034 in the flange 2032. A ridge 2029 or one or more protrusions can extend outwardly from the interior lumen 2026 and can be configured to fit through the opening 2034 (e.g., as a snap fit engagement) and to engage with the flange 2032 to couple the proximal end portion 2014 to the housing 2010. The flange 2032 can fit into a groove 2031 or recess, which can be formed between the ridge 2029 and the protrusion(s) 2027. The distal side of the ridge 2029 or protrusion(s) can be angled to facilitate insertion of the ridge 2029 or protrusion(s) through the opening 2034. The proximal side of the ridge 2029 or protrusion(s) can extend laterally, to provide an engagement surface that engages with a distal side of the flange 2032. The housing 2010 can include protrusions 2036, such as extending inwardly from the sidewall 2030. The protrusions 2036 can be teeth with engagement surfaces on one side and sliding surfaces on the other side. Two protrusions 2036 are shown, but any suitable number (e.g., 1, 2, 3, 4, 6, 8, 10, 12, or more) can be used.
The connector 2002 can include an engagement member 2040, which can have a body 2045 having a generally circular shape. The engagement member 2040 can have outward pawls 2068, which can be configured to engage the protrusions 2036 on the housing 2010, and inward pawls 2070, which can be configured to engage the protrusions 202 on the proximal end portion 2014. When the proximal end portion 2014 is rotated in the tightening direction (e.g., clockwise in
The engagement member 2040 can have a gap 2069 between the outer pawl 2068 and the body 2045, which can enable the outer pawl 2068 to flex inward towards the body 2045. The engagement member 2040 can have a gap 2071 between the inner pawl 2070 and the body 2045, which can enable the inner pawl 2070 to flex outward towards the body 2045. When the proximal end portion 2014 is rotated in a loosening direction (e.g., counter clockwise in
In some embodiments, the proximal end portion 2014 can be configured to spin freely relative to the housing 2010 in the tightening direction (e.g., clockwise in
In the embodiments of
The connector 2002 can have a proximal end portion 2014 that includes a female luer 2020, external threading 2022, a flange 2024, and an interior lumen 2026. The distal side of the flange 2024 can have a keyed portion 2072. The engagement member 2040 can have a body 2045, which can have a generally circular shape. The engagement member 2040 can have a keyed portion 2074 on a proximal end thereof, which can be configured to engage the keyed portion 2072 on the proximal end portion 2014. For example, the keyed portion 2072 can be a raised portion (e.g., in the shape of a hexagon), and the keyed portion 2074 can be a recess (e.g., in the shape of a hexagon), which can be configured to receive the raised structure of the keyed portion 2072 therein, so that the engagement member 2040 rotates with the proximal end portion 2014. Many other configurations could be used. Although a hexagonal keyed shape is used, various other polygonal shapes could be used, or splines, or any other keyed structures. In some cases, the flange 2024 could include a keyed recess that is configured to receive a keyed protrusion on the engagement member 2040.
The body portion 2045 can form an external sidewall of the connector 2002. The body portion 2045 can have a generally cylindrical shape, with an open center. The engagement member 2040 can have internal teeth 2076 or protrusions, which can extend inwardly from the body portion 2045. The teeth 2076 can be disposed distally of the keyed portion 2074. The housing 2010 can include a proximal housing portion 2018 that has a flange 2032 and an opening 2034 through the flange 2032. The flange 2032 can be configured to engage the groove 2031 on the interior lumen 2026, such as to couple the proximal end portion 2014 to the housing 2010. The interior lumen 2026 can extend through the open center of the engagement member 2040 and through the opening 2034 in the flange 2032 of the housing 2010.
The housing 2010 can have one or more pawls 2080, which can be configured to engage the teeth 2076 on the engagement member 2040. A proximal body portion 2078 can extend proximally from the flange 2032. The proximal body portion 2078 can be generally cylindrical in shape. The opening 2034 can extend through the proximal body portion 2078. The pawls 2080 can extend outwardly from the proximal body portion 2078. The pawls 2080 can be curved, such as so that the ends of the pawls 2080 generally follow the curvature of the proximal body portion 2078. A line normal to the surfaces at the ends of the pawls 2080 can extend generally tangentially. The pawls 2080 can have engagement surfaces that extend generally radially, such as to engage the engagement surfaces on the teeth 2076.
When the proximal end portion 2014 is rotated in a tightening direction (e.g., clockwise in
When the proximal end portion 2014 is rotated in the loosening direction (e.g., clockwise in
The connector 2002 can have a housing 2010 that includes a sidewall 2030, which can be generally cylindrical in shape. A flange 2032 can extend inwardly from the sidewall 2030 of the housing 2010. An opening 2034 can extend through the flange 2032. The interior lumen 2008 can extend through the opening 2034. The housing can have one or more tabs 2033 for securing the proximal end portion 2014 to the housing 2010. The one or more tabs 2033 can extend inward from the sidewall 2030, such as at or near the proximal end of the housing 2010. The flange 2024 of the proximal end portion 2014 can be recessed into the housing 2010. The flange 2024 can be positioned on a distal side of the one or more tabs 2033, so that the tabs 2033 can hold the flange 2024 inside the housing 2010. The tabs 2033 and/or the flange 2024 can be configured to flex sufficiently to enable the flange 2024 to be inserted distally past the one or more tabs 2033, such as for a snap fit engagement.
The proximal side of the flange 2032 on the housing can have engagement features 2084 that are configured to engage the pawls 2082. The engagement features 2084 can include teeth, protrusions, or recesses. The engagement features 2084 can have engagement surfaces 2086 and sliding surfaces 2088. A line normal to the engagement surfaces 2086 can extend laterally, or orthogonal to a longitudinal axis of the connector 2002. The engagement surfaces 2086 can be configured to abut against engagement sides of the pawls 2082, such as to impede rotation of the proximal end portion 2014 relative to the housing 2010. The engagement side of the pawl 2082 can have a surface that is substantially parallel to the engagement surface 2086. With reference to
The engagement features 2084 can have sliding surfaces 2088, such as opposite the engagement surfaces 2086. The sliding surfaces 2088 can be angled relative to the engagement surfaces 2086 by about 15 degrees to about 75 degrees, or by about 30 degrees to about 60 degrees. The pawls 2082 can have sliding surfaces on the sides of the pawls 2082 that face the sliding surfaces 2088 of the engagement features 2084 on the housing 2010. The pawls 2082 can have a tapered thickness at the proximal ends. The sliding surfaces on the pawls 2082 can be angled relative to the engagement surfaces 2086 by about 15 degrees to about 75 degrees, or by about 30 degrees to about 60 degrees. The sliding surfaces on the pawls 2082 and the engagement features 2084 can facilitate or permit rotation of the proximal end portion 2014 relative to the housing 2010 in the loosening direction (e.g., counterclockwise in
In some cases, if an amount of torque above a threshold is applied to the proximal end portion 2014 in the tightening direction, the pawls 2082 can flex enough for the pawls 2082 to slide past the engagement surface 2086. Thus, by applying torque above the threshold, the proximal end portion 2014 can be rotatable in the tightening direction. The threshold of torque or force that rotates the proximal end portion 2014 in the tightening direction can be higher than the threshold amount of torque or force that rotates the proximal end portion 2014 in the loosening direction relative to the housing 2010. The threshold of torque or force for rotating the proximal end portion 2014 in the tightening direction can be higher than the amount of torque or force that would be applied to fully couple another connector to the proximal end portion. The threshold of torque or force for rotating the proximal end portion 2014 in the loosening direction can be lower than the amount of torque or force that would be applied to decouple the other connector from the proximal end portion 2014.
In some embodiments, the connector 2002 can have a free-spin configuration that permits the proximal end portion 2014 to spin freely in both directions relative to the housing 2010. The connector 2002 can have an engaged configuration that impedes rotation of the proximal end portion 2014 relative to the housing 2010 in at least one direction, or in both directions.
The connector 2002 can have a proximal end portion 2014 that includes a female luer 2020, external threading 2022, a flange 2024, and an interior lumen 2026. The housing 2010 can have a sidewall 2030, a flange 2032 that extends inwardly from the sidewall 2030, and an opening 2034 through the flange 2032. The interior lumen 2026 can extend through the opening 2034 in the housing 2010. A ridge 2029 or one or more protrusions can extend outwardly from the interior lumen 2026 and can be configured to fit through the opening 2034 (e.g., as a snap fit engagement) and to engage with the flange 2032 to couple the proximal end portion 2014 to the housing 2010. The distal side of the ridge 2029 or protrusion(s) can be angled to facilitate insertion of the ridge 2029 or protrusion(s) through the opening 2034. The proximal side of the ridge 2029 or protrusion(s) can extend laterally, to provide an engagement surface that engages with a distal side of the flange 2032.
The proximal end portion 2014 can have one or more protrusions 2090, which can extend radially outward, such as from the flange 2024. The housing 2010 can have one or more corresponding recesses 2092, which can be shaped to receive the one or more protrusions 2090 therein. The housing 2010 can have protrusions with the recesses 2092 formed between the protrusions. The distal ends of the protrusions 2090 can be tapered and/or the proximal ends of the recesses 2092 can be flared, such as to facilitate sliding of the protrusions 2090 into the recesses 2092. A biasing member 2094, such as a coil spring, can be disposed between the flange 2032 on the housing 2010 and the flange 2024 on the proximal end portion 2014. The biasing member 2094 can bias the proximal end portion 2014 proximally relative to the housing 2010. The ridge 2029 can limit the range of motion of the proximal end portion 2014 in the proximal direction, such as by the ridge 2029 abutting against the flange 2032 on the housing 2010. The protrusions 2090 can be disposed outside the recesses 2092 when the proximal end portion 2014 is at the proximal position (e.g., shown in
The proximal end portion 2014 can be movable axially relative to the housing 2010. Pressing the proximal end portion 2014 axially in the distal direction can compress the biasing member 2094 and can cause the flange 2024 to move distally towards the flange 2032. As the proximal end portion 2014 moves distally, the protrusions 2090 can insert into the corresponding recesses 2092. With the protrusions 2090 engaged with the recesses 2092, rotation between the proximal end portion 2014 and the housing 2010 can be impeded. Rotating the proximal end portion 2014 in either direction would cause the protrusions 2090 to press against corresponding sides of the recesses 2092 so that the housing 2010. The user can move the proximal end portion 2014 to the engaged configuration (e.g., of
In some embodiments, the proximal end portion 2014 can move axially relative to the housing 2010, such as to transition between an engaged configuration and a disengaged configuration (e.g., as shown in
The connector 2002 can have a proximal end portion 2014 that includes a female luer 2020, external threading 2022, a flange 2024, and an interior lumen 2026. The proximal end portion 2014 can include one or more protrusions or 2027, which can extend radially outward from the outside surface of the interior lumen 2026. Two protrusions or teeth 2027 can be included, such as disposed on opposite sides of the proximal end portion 2014.
The housing 2010 can include a sidewall 2030, a flange 2032 extending inwardly from the sidewall 2030, and an opening 2034 through the flange 2032. The sidewall 2030 can include gaps 2096 (e.g., slits) that can divide the sidewall into four sidewall sections 2030a, 2030b, 2030c, and 2030d. The sidewall sections 2030a and 2030c can be positioned opposite each other. The sidewall sections 2030b and 2030d can be positioned opposite each other. The gaps 2096 can enable the user to move one or more of the sidewall sections 2030a-d between a disengaged configuration and an engaged configuration. For example, the user can press or squeeze opposing sidewall sections 2030b and 2030d inwardly or towards each other, such as by applying force in the direction of the arrows in
The user can release the opposing sidewall sections 2030b and 2030d so that they move outwardly to their unflexed or undeformed positions (e.g., the unengaged configuration shown in
In the embodiment illustrated in
In some embodiments, the teeth 2036 can have engagement surfaces and sliding surfaces, and the teeth 2027 can have engagement surfaces and sliding surfaces (e.g., similar to the other embodiments described herein). When the connector is in the engaged configuration, the engagement surfaces of the one or more teeth 2036 can engage with the engagement surfaces of the one or more teeth 2027 to impede rotation of the proximal end portion 2010 relative to the housing 2010 in a tightening direction (e.g., clockwise in
In some embodiments, the teeth 2027 and teeth 2036 could be replaced with one or more protrusions that are configured to engage one or more corresponding recesses when the connector is in the engaged configuration (e.g., with the sidewall portions 2030b and 2030d pressed inwardly). Thus, the engaged configuration can impede rotation of the proximal end portion 2014 relative to the housing 2010 in both directions. In the disengaged configuration the one or more protrusions can be retracted from the one or more recesses to permit rotation of the proximal end portion 2014 relative to the housing 2010 in both directions.
The housing 2010 can have four sidewall sections 2030a, 2030b, 2030c, 2030d, although any suitable number of sidewall sections could be used, as discussed herein. Gaps 2096 (e.g., slits) can separate the sidewall sections 2030a-d. One or more of the sidewall sections 2030a-d can be moved to transition the connector between an engaged configuration and a disengaged configuration. For example, opposing sidewall sections 2030b and 2030d can be pressed radially inwardly (e.g., by a force shown by the arrows in
In the disengaged state (e.g.,
In the engaged state (e.g.,
When the one or more sidewall sections 2030a-d are pressed inwardly, the gaps 2096 can be collapsed. The sidewall section 2030a-d being pressed inwardly can abut against one or both adjacent sidewall sections 2030a-d to limit the distance that the sidewall section 2030a-d can be displaced inwardly. In
The embodiments illustrated in
The connector 2002 can have a proximal end portion 2014, which can include a female luer 2020, external threading 2022, a flange 2024, an interior lumen 2026, and one or more protrusions or teeth 2027, which can extend radially outward from the interior lumen 2026. The housing 2010 can have a sidewall 2030, a flange 2032 that extends inward from the sidewall 2032, and an opening through the flange 2034. The interior lumen can extend through the opening 2034 in the flange 2032. The housing can have one or more tabs 2033 for securing the proximal end portion 2014 to the housing 2010 (e.g., similar to other embodiments disclosed herein). The one or more tabs 2033 can extend inward from the sidewall 2030, such as at or near the proximal end of the housing 2010. The flange 2024 of the proximal end portion 2014 can be recessed into the housing 2010. The tabs 2033 and/or the flange 2024 can be configured to flex sufficiently to enable the flange 2024 to be inserted distally past the one or more tabs 2033, such as for a snap fit engagement.
The housing 2010 can have one or more pawls 2098, which can extend inwardly from the housing 2010, such as from the sidewall 2030. The pawls 2098 can be configured to engage the teeth 2027 on the proximal end portion 2014. Each of the pawls 2098 can extend from a connection point 2049 on the body 2045. The pawl 2098 can be curved so that an end portion of the pawl 2098 extends along direction generally parallel to the curvature of an adjacent portion of the sidewall 2030. Each of the pawls 2098 can have an engagement surface and a sliding surface. A line normal to the engagement surface can extend generally tangentially to the curvature of the side wall 2030. The sliding surface can be angled so that a line normal to the sliding surface can extend in a direction that is offset from a radially outward direction by an angle of about 5 degrees to about 45 degrees, although other configurations are possible. The side wall can include openings 2099 adjacent to the pawls 2098. The openings 2099 can create space in the sidewall 2030 into which the pawls 2098 can deflect, in some embodiments. In some cases, the openings 2099 can be omitted.
When the proximal end portion 2014 is rotated in a tightening direction (e.g., clockwise in
The connector 2002 can have a proximal end portion 2014, which includes a female luer 2020, external threading 2022, and a flange 2024. The proximal end portion 2014 can include an interior lumen 2026, which is hidden from view in
The proximal end portion 2014 can include one or more teeth 2027, which can extend radially outward. Each of the teeth can include an engagement surface and a sliding surface. The engagement surface can extend generally radially. A line normal to the engagement surface can extend substantially tangential to a curve along the path of motion of the rotating teeth 2027, or varying from the tangential direction by about 20 degrees, about 15 degrees, about 10 degrees, about 5 degrees, about 3 degrees, about 2 degrees, about 1 degree, or less, or any ranges or values therebetween, although other configurations could be used. The sliding surface can be angled relative to the engagement surface by about 30 degrees, about 35 degrees, about 40 degrees about 45 degrees, about 50 degrees, about 55 degrees, about 60 degrees, about 65 degrees, about 70 degrees, about 75 degrees, or more, or any values or ranges therebetween, although other configurations could be used. The teeth 2027 of
The connector 2002 can include a housing 2010. The housing can have a distal portion 2016 and a proximal portion 2018, which can be coupled by sonic welding, adhesive, screw threads, pins, snap fit features, friction fit features, or the like. When coupled the distal portion 2016 and the proximal portion 2018 of the housing 2010 can move together and can function as a single unitary component. In some embodiments, the features of the distal portion 2016 and the proximal portion 2018 of the housing 2010 can be formed as a single integrated component. The proximal portion 2018 of the housing can have a sidewall 2030, a flange 2032 that extends inwardly from the sidewall 2030, and an opening 2034 through the flange 2032. Similar to other embodiments disclosed herein, the interior lumen 2026 of the proximal end portion 2014 can extend through the opening 2034 in the flange 2032.
In some embodiments, engagement features can extend upward from the flange 2032 and can be configured, for example, to engage corresponding features on the distal portion 2016 of the housing 2010. For example, a ridge 2011 can extend distally from the flange 2032. The ridge 2011 can have a gap 2013. One or more tabs 2015 can extend distally from the flange 2032 or sidewall 2030. The tabs 2015 can fit into grooves 2017 on the distal portion 2016 of the housing 2010, as shown in
The housing 2010 can have one or more pawls 2019, which can be configured to interact with the one or more teeth 2027 on the proximal end portion 2014, such as to impede rotation of the proximal end portion 2014 relative to the housing 2010 in a first direction (e.g., a tightening direction that enables another connector to be threaded onto the proximal end portion 2014), and to permit rotation of the proximal end portion 2014 relative to the housing 2010 in a second direction (e.g., a loosening direction so that other connector does not unintentionally detach from the proximal end portion 2014). The embodiments of
The pawls 2019 can form part of the sidewall 2030 of the housing 2010. The sidewall 2030 can have a first sidewall section 2030a and a second sidewall section 2030b, which can be spaced apart from each other. The sidewall sections 2030a and 2030b can form part of a generally cylindrical shape. The sidewall sections 2030a and 2030b can be annular segments having a first radius of curvature. Each of the pawls 2019 can extend from one of the sidewall sections 2030a and 2030b and can extend towards a next or opposing sidewall section 2030b and 2030a. The pawls 2019 can have a second radius of curvature that is smaller than the first radius of curvature, such as about 5%, about 10% about 15%, about 20%, about 25% smaller, or any values or ranges therebetween, although configurations could be used. The pawls 2019 can have engagement surfaces. The engagement surface can extend generally radially. A line normal to the engagement surface can extend substantially tangential to a curve along the path of motion of the rotating teeth 2027 (or a curvature path of the pawls 2019 themselves), or varying from the tangential direction by about 20 degrees, about 15 degrees, about 10 degrees, about 5 degrees, about 3 degrees, about 2 degrees, about 1 degree, or less, or any ranges or values therebetween, although other configurations could be used. The engagement surfaces on the pawls 2019 can be at the ends of the pawls 2019. The teeth 2027 on the proximal end portion 2014 can be positioned radially inward of the sidewall sections 2030a and 2030b.
The sidewall sections 2030a and 2030b can be positioned so that the teeth 2027 do not contact or engage the sidewall sections 2030a and 2030b as the teeth 2027 and proximal end portion 2014 rotate relative to the housing 2010. The smaller radius of curvature of the pawls 2019 can cause the ends of the pawls 2019 to extend radially inward further than the sidewall sections 2030a and 2030b. The distance from the longitudinal axis through the connector 2002 to the end of the pawl 2019 can be less than the distance from the longitudinal axis to the sidewall section 2030a or 2030b. As the teeth 2027 rotate with the proximal end portion 2014 the teeth 2027 can contact and engage the pawls 2019, as discussed herein.
Two sidewall sections 2030a and 2030b are shown, but a different number of sidewall sections could be used, such as if the connector 2002 included a different number of pawls. Each sidewall section 2030a, 2030b can have a corresponding pawl 2019 extending therefrom. In some embodiments, gaps 2021 can be disposed between the ends of the pawls 2019 and the ends of the sidewall sections 2030a, 2030b. The flange 2031 can extend inwardly from the sidewall sections 2030a and 2030b. The flange 20301 can connect the sidewall sections 2030a and 2030b. In some embodiments, the pawls 2019 are not directly connected to the flange 2032. A gap 2023 can be disposed between the pawl 2019 and the flange 2032. The pawl 2019 can be moveable (e.g., to flex outwardly). The pawls 2019 can have sliding surfaces, which can be the radially inwardly facing sides of the pawls 2019, which can be configured to slide relative to the teeth 2027, as described herein.
When the proximal end portion 2014 is rotated in a second or tightening direction (e.g., clockwise in
When the proximal end portion 2014 is rotated in a first or loosening direction (e.g., counterclockwise in
The opposing sidewall sections 2030b and 2030d can have one or more protrusions 2037, which can extend inwardly from the sidewall sections 2030b and 2030d. The protrusions 2037 can be similar to the housing teeth 2036 disclosed herein. In some embodiments, the projections 2037 can include an engagement surface, which can be similar to other embodiments disclosed herein. A line normal to the engagement surface can extend substantially tangential to a curve along the path of motion of the protrusions 2037, or varying from the tangential direction by about 20 degrees, about 15 degrees, about 10 degrees, about 5 degrees, about 3 degrees, about 2 degrees, about 1 degree, or less, or any ranges or values therebetween, although other configurations could be used.
The proximal end portion 2014 can include one or more pawls 2025, which can be configured to engage the protrusions 2037 when the connector is in the engaged state (e.g., with the sidewall sections 2030b and 2030d pressed inward). The pawls 2025 can be similar to other embodiments disclosed herein. The pawls 2025 can extend out from a connection point on the proximal end portion 2014 (e.g., from an interior lumen 2026 thereof). The pawl 2025 can be curved so that an end portion of the pawl 2025 extends along a direction that is generally tangential to a curve along the path of motion of the rotating pawls 2025. The pawls 2098 can have an engagement surface and a sliding surface, similar to other embodiments discussed herein. A line normal to the engagement surface can extend generally tangentially to a curve along the path of motion of the engagement surface as the pawls 2025 rotate relative to the housing 2010, or varying from the tangential direction by about 20 degrees, about 15 degrees, about 10 degrees, about 5 degrees, about 3 degrees, about 2 degrees, about 1 degree, or less, or any ranges or values therebetween, although other configurations could be used.
When the connector 2002 is in the engaged configuration, rotation of the proximal end portion 2014 in the tightening direction (e.g., clockwise in
When the connector 2002 is in the engaged configuration, rotation of the proximal end portion 2014 in the loosening direction (e.g., counter clockwise in
The distance that the sidewall sections 2030b and 2030d can be pressed inward can be limited by stops, similar to other embodiments disclosed herein. For example, when the second sidewall section 2030b is pressed inward, a first end of the second sidewall section 2030b can abut against a first end of the first sidewall section 2030a and/or a second end of the second sidewall section 2030b can abut against a first end of the third sidewall section 2030c. When the fourth sidewall section 2030d is pressed inward, a first end of the fourth sidewall section 2030d can abut against a second end of the first sidewall section 2030a and/or a second end of the fourth sidewall section 2030d can abut against a second end of the third sidewall section 2030c. Displacing the one or more sidewall sections 2030a-d to the engaged configuration can collapse one or more corresponding gaps 2096. The size of the corresponding gaps 2096 can set the displacement distance that the one or more sidewall sections 2030a-d can be displaced. When the one or more corresponding gaps 2096 are collapsed, the one or more sidewall sections 2030a-d can be stopped from being displaced further inward (e.g., even if additional squeezing force were applied).
The stops can impede the protrusions 2037 from being displaced so far inward that they would block the pawls 2025 and proximal end portion 2014 from rotating in the loosening direction relative to the housing 2010. For example, when the sidewall sections 2030b and 2030d are pressed inward until they abut against the other sidewall sections 2030a and 2030c, the protrusions 2037 can be positioned so that they can displace the pawls 2025 inward to permit the proximal end portion 2014 to rotate in the loosening direction (e.g., counter clockwise in
When the connector 2002 is in the disengaged configuration (e.g., as shown in
Many variations are possible. For example, the sidewall sections 2030b and 2030d, or any other suitable portion of the housing 2010, can have one or more flexible pawls 2037 instead of the protrusions 2037. The proximal end portion 2025 can have relatively inflexible protrusions (e.g., similar to protrusions 2037) instead of the pawls 2025. In some embodiments, both the housing 2010 and the proximal end portion 2014 can include flexible pawls (e.g., similar to the pawls 2025, but facing in opposite directions).
In some embodiments, the gaps 2096 between the sidewall sections 2030a-d can extend to the end of the housing 2010, such as to form open slits, as shown for example in
In some embodiments, the gaps 2096 can be omitted. The one or more movable sidewall sections 2030b and 2030d can be defined by different thicknesses of the sidewall 2030. By way of example, the sidewall sections 2030a and 2030c can be thinner than the sidewall sections 2030b and 2030d, as shown in
Various engagement features could be used, such as the protrusions, pawls, teeth, and recesses disclosed herein. Generally, where suitable, engagement features of one type can be used in place of engagement features of another type, even when not specifically shown. For example, in some instances, pawls that engage teeth could be replaced with teeth that engage pawls, or pawls that engage recesses, or protrusions that engage recesses, etc. In some cases, one or more recesses can be configured to engage one or more corresponding pawls, teeth, or protrusions. In some cases, a recess can have an engagement surface at one end (e.g., to limit rotation of a corresponding engagement feature) and/or an angled sliding surface at another end (e.g., to permit rotation of a corresponding engagement feature). In some cases, pawl(s) can press outward against a surface (e.g., sidewall) as the pawls and sidewall rotate relative to each other, and the surface can have recess(es) that permit the pawl(s) to move to a less flexed position to engage the recess(es) to impede relative rotation.
In some embodiments, the engagement features (e.g., one or more pawls, teeth, or protrusions) can be integrally formed with the corresponding component of the connector 2002 (e.g., the housing 2010 or the proximal end portion 2014). Alternatively, the engagement features (e.g., one or more pawls, teeth, or protrusions) can be separately formed and can be coupled to move (e.g., rotate) with the corresponding component of the connector 2002. For example, in
In some disclosed embodiments, engagement features can extend outward from the outside surface of an interior lumen 2026 of the proximal end portion 2014. However, engagement features could extend from, or be disposed on, other portions of the proximal end portion 2014, such as from the flange 2024, or from the barrel of the female luer fitting, or from another component that rotates or otherwise moves with the proximal end portion 2014.
The rotation mechanisms disclosed herein can be incorporated into various types of connectors. For example, the rotation mechanisms can be used in a connector similar to the connector 100 of the ′712 Publication, such as to control rotation between the male housing 123 and the first cap component 132. The rotation mechanisms can be used in a connector similar to the connector 400 of the ′712 Publication, such as to control rotation between the female housing 440 and the fluid conduit 280. The rotation mechanisms can be used in a connector similar to any of the connectors 1100, 2100, 3100, 8100, 9100 of the ′712 Publication, such as to control rotation between the male housing 1123, 2123, 3123, 8123, 9123 and the first cap component 1132, 8132, 9132. The rotation mechanisms can be used in a connector similar to any of the connectors 1400, 2400, 8400 of the ′712 Publication, such as to control rotation between the female housing 1440, 8440, and the first cap component 1420. The rotation mechanisms disclosed herein can be used in connection with various other connectors disclosed in the ′712 Publication or otherwise, such as to control rotation of a first portion relative to a second portion. Any suitable features of the connectors disclosed in the ′712 Publication can be incorporated into the connector 2002 embodiments disclosed herein. In some embodiments, the proximal end distal ends can be interchanged, and the proximal end portion 2014 can be a distal end portion. Although various embodiments are discussed in connection with a proximal end portion, a distal end portion, end portion, connector fitting portion, or other component can be rotatable relative to the housing using the rotation mechanisms disclosed herein.
In some embodiments, the male and female luer fittings can be exchanged. For example, the female luer fitting can be part of, or movable with, the housing, and the male luer fitting can be part of, or movable with, a different component that can rotate relative to the housing. Although some embodiments disclose luer lock fittings, other types of connection fittings could be used.
The proximal end portion (or first portion) of the connector can be configured to couple to a first medical implement, such as a syringe, fluid line, IV bag, or any other suitable medical device. The distal end portion (or second portion) of the connector can be configured to couple to a second medical implement, such as a catheter, fluid line, IV bag, or any other suitable medical device. The connector 2002 can be configured to transfer fluid between the first and second medical implements (e.g., for infusing fluid through the connector 2002 and into a patient). The rotation mechanisms disclosed herein can control rotation between the proximal end portion (or first portion) and the distal end portion (or second portion) of the connector 2002.
Some embodiments can permit rotation of a first portion of the connector (e.g., the proximal end portion 2014) relative to a second portion of the connector (e.g., the housing 2010), which can allow continuous rotation, such as repeated 360-degree revolutions. Some embodiments can impede rotation of a first portion of the connector (e.g., the proximal end portion 2014) relative to a second portion of the connector (e.g., the housing 2010) in one or more directions. In some instances, the first portion of the connector can rotate relative to the second portion of the connector by a limited range before the rotation is impeded. For example, a proximal end portion 2014 may be permitted to rotate in a second direction (e.g., a tightening direction) relative to the housing 2010 for a limited distance until the engagement features of the rotation mechanism engage to impede further rotation in the second direction.
The connector 2002 can have a housing 2010, which can include multiple housing portions, in some cases. For example, the connector 2002 can include a first or distal housing portion 2010a, a second or central housing portion 2010b, and a third or proximal housing portion 2010c. The portions of the housing 2010 can be coupled together, such as by snap fit features, although in some cases sonic welding, adhesive, screw threads, pins, friction fit features, or other coupling features can be used. The first housing portion 2010a can have one or more arms 2051 with protrusions 2053 (e.g., two opposing arms 2051). The one or more arms 2051 can extend into corresponding one or more slots 2055 on the second housing portion 2010b (e.g., two opposing slots 2055). The exterior of the arms 2051 can be substantially flush with the exterior of the second housing portion 2010b adjacent to the slots 2055. The one or more protrusions 2053 can engage one or more corresponding recesses or openings 2057 on the second housing portion 2010b (e.g., two opposing recesses or openings 2057) to couple the first housing portion 2010a to the second housing portion 2010b, such as with a snap-fit engagement. Various alternatives are possible. For example, in some cases, the first housing portion 2010a can have one or more recesses or openings that receive one or more protrusions on second housing portion 2010b, or other engagement features can be used.
The second housing portion 2010b can have a ridge or protrusion(s) 2059 that can extend inward to engage a corresponding channel 2061 on the third housing portion 2010c, which can couple the third housing portion 2010c to the second housing portion 2010b. The ridge or protrusion(s) 2059 can slide within the channel 2061 to permit the third housing portion 2010c to rotate relative to the second housing portion 2010b (e.g., about a longitudinal axis). Various alternatives are possible. For example, in some cases, the third housing portion 2010c can have the protrusion(s) and the second housing portion 2010b can include the channel, or other engagement features can be used. The channel 2061 can be formed between a distal wall and a proximal wall 2063. The ridge or protrusion(s) 2059 can be recessed distally from the proximal end of the second housing portion 2010b, for example so that the proximal wall 2063 is disposed at least partially inside of the second housing portion 2010b, as can be seen in
The housing 2010 (e.g., the first housing portion 2010a) can include a distal end 2004, which can include a distal opening. The housing 2010 (e.g., the first housing portion 2010a) can include a tapered male luer, although various other connection types can be used. The first housing portion 2010a can include a hollow projection. The male luer or hollow projection can be surrounded by a shroud, which can have internal threading, such as to engage threading or protrusion(s) on a corresponding locking female luer connector. The internal threading can be similar to the example connector of
The housing 2010 (e.g., the third housing portion 2010a) can include a proximal end 2014. The housing 2010 (e.g., the third housing portion 2010a) can include a tapered female luer, although other types of connections can be used. The housing 2010 (e.g., the third housing portion 2010a) can have external threading or protrusions, such as to engage a locking male luer of another connector. The proximal end 2014 can have a proximal opening, such as at the end of the female luer. Many variations are possible. The housing 2010 can include fewer or more housing portions than shown in the example illustrations. In some cases, the first housing portion 2010a and the second housing portion 2010b can be combined into a single housing portion. Accordingly, in some cases, the third housing portion 2010c can be a second housing portion that is coupled to a first housing portion, which can be similar to the housing portions 2010a and 2010b.
A fluid pathway 2008 can extend between the distal end 2004 (e.g., the first or distal opening) and the proximal end 2014 (e.g., the second or proximal opening) of the connector 2002, such as to enable fluid to be transferred through the connector 2002. In some embodiments, the fluid pathway within the connector 2002 may be continuous or without interruption between the distal end 2004 and proximal end 2014. The connector 2002 can have a closure system 2006, which can include a valve or seal. The closure system 2006 can have an open configuration, which can enable fluid to flow through the fluid pathway 2008. The closure system 2006 can have a closed configuration, which can impede fluid from flowing through the fluid pathway 2008. For example, the closure system 2006 can close the distal end 2004 (e.g, the distal opening) of the connector 2002, in some embodiments, although any suitable closure system can be used. In some embodiments, the closure system 2006 can automatically transition to the open configuration when a corresponding connector is attached to the connector 2002 (e.g., to the distal end 2004), as discussed herein. The closure system 2006 can automatically transition to the closed configuration when a corresponding connector is detached from the connector 2002 (e.g., from the distal end 2004), as discussed herein.
The connector 2002 can include a valve member 2065. The valve member can move axially between a closed configuration or distal position, which can seal an inside of the male luer, and an open configuration or proximal position, which can open the male luer. The valve member 2065 can have an opening at its proximal end, and a channel can extend from the opening toward the distal end of the valve member 2065 (e.g., along a longitudinal or axial direction). The distal end of the valve member 2065 can be closed. For example, in some cases, the channel does not extend the full length of the valve member 2065. One or more lateral openings through the side of the valve member 2065 can provide access to the fluid pathway 2008 when the valve member 2065 is in the open configuration. A cross-channel can extend laterally through the valve member 2065 to form two opposing opendings. The one or more openings can be positioned near the distal end of the valve member, but spaced proximal from the distal end by a distance. The valve member 2065 can have a tapered distal end or a step near the distal end, which can be configured to engage the housing 2010 (e.g., an inside of the male luer) to impede further movement of the valve member 2065 in the distal direction once it has reached the closed position. The distal end of the valve member 2064 can be substantially flush with the distal end of the housing 2010 (e.g., of the male luer).
When the valve member 2065 is displaced proximally, to the open position, the fluid path can extend through the distal opening (e.g., at the end of the male luer), through the one or more side openings of the valve member, into the channel of the valve member, out the proximal opening of the valve member, into a channel through the housing 2010 (e.g., through the third or proximal housing portion, and through the proximal opening (e.g., at the end of the female luer). Fluid could flow in either direction through the fluid flow path, depending on the situation. In some cases, fluid can enter a space between the exterior of the valve member 2065 and the inside of the male luer projection. A seal member 2067 (e.g., an O-ring) can form a seal between the exterior of the valve member 2065 and the housing 2010 (e.g., the first or distal housing portion), such as on an inside of the male luer projection. The seal member 2067 can impede the fluid from leaking out of the flow path 2008 through the connector 2002. The flow path 2008 can have a distal portion, which can be at least partially defined by the valve member 2065. The flow path 2008 can include a proximal portion, which can be at least partially defined by the housing 2010 (e.g., by the third or proximal housing portion 2010c), and by the female luer in some cases. A seal member 2069 (e.g., O-ring) can form a seal between the valve member 2065 and the housing 2010 (e.g., the third or proximal housing portion 2010c). The seal member 2069 can be on an exterior of the valve member 2065 and on an inside of the housing portion 2010c. The valve member 2065 can be received into the channel through the housing portion 2010c, which can be beneficial to allow the valve member 2064 to slide proximally without hitting the pawls 2025 on the housing portion 2010c. As the valve member 2065 moves to the open position, the shaft of the valve member 2065 can slide along the seal member 2067 and/or the seal member 2069. The one or more openings in the side of the valve member 2065 can remain distal of the seal member 2067 when the valve member 2065 is in the open position. The valve member 2065 can include a flange 2071 or one or more protrusions, which can extend laterally from the exterior of the valve member (e.g., from the valve member shaft).
A distal portion of the third housing portion 2010c can extend into the interior volume of the second housing portion 2010b. A proximal portion of the third housing portion 2010c can extend proximally out of the second housing portion 2010b, such as by a longitudinal distance of less than about 10 mm, less than about 9 mm, less than about 8 mm, less than about 7 mm, less than about 6 mm, less than about 5 mm, less than about 4 mm, less than about 3 mm, or less, or any ranges or values between any of these distances, although other configurations could be used. The proximal portion of the third housig portion 1020c can provide the femal luer, for example. The exterior of the proximal portion of the third housing portion 2010c, which extends outside of the second housing portion 2010b, can have a shaft and external threads or protrusions to engage corresponding threads for a luer lock connection. In some cases, the shaft does not include any other protrusions or steps other than the external threads or protrusions configured to engage corresponding threads for a luer lock connection. In some cases, the proximal portion of the third housing portion 2010c, which extends outside of the second housing portion 2010b does not have any protrusions or other features that extend laterally beyond the threads or luer lock protrusion(s). When another device is connected to the proximal end of the connector (e.g., to the female luer), the external threads (or other thread-engagement protrusion(s)) can be received into the other device so that they are not exposed. In some cases, the third housing portion 2010c does not have any protrusions, steps, recesses, or other external features that are exposed when the other device is connected to the proximal end of the connector. The connector 2002 can be configured so that when a standard male luer lock connector is coupled to the femal luer lock connection at the proximal end of the connector 2002, the housing of the other connector (e.g., the shroud of the male luer lock connector) can be spaced away from the proximal end of the second housing portion 2010b by a distance of less than about 10 mm, less than about 9 mm, less than about 8 mm, less than about 7 mm, less than about 6 mm, less than about 5 mm, less than about 4 mm, less than about 3 mm, less than about 2 mm, less than about 1 mm, or less, or any ranges or values between any of these distances, although other configurations could be used. Having only a small portion of the third housing portion 2010c exposed (e.g., with a gap of the distances discussed above), can prevent or impede the third housing portion 2010c from being gripped to loosen or remove the other device. The proximal portion of the valve member 2065 can extend into the distal portion of the third housing portion 2010c. A first or distal portion of the fluid pathway 2008 can extend through the valve member, and a second or proximal portion of the fluid pathway 2008 can extend through the third housing portion 2010c (e.g., the proximal end portion or female luer fitting). As the valve member 2065 moves toward the open position, more of the valve member 2065 can move into the third housing portion 2010c. A line (e.g., extending laterally perpendicular to a longitudinal axis of the connector 2002) can pass through the second housing portion 2010b, the third housing portion 2010c, and the valve member 2065. The valve member 2065 can be partially nested into the third housing portion 2010c, and the third housing portion 2010c can be partially nested into the second housing portion 2010b.
The connector 2002 can include one or more actuator arms 2073, which can be used to actuate. the valve member 2065 to the open position, as discussed herein. The actuator arms 2073 can extend distally from a base 2075. The base 2075 can have an opening, and the valve member 2065 can extend through the opening, until the flange 2071 abuts against the proximal side of the base 2075. The actuator arms 2073 can extend distally (e.g., through one or more opening or slots through the housing 2010) so that the arms 2073 as positioned in the space between the male luer projection and the shroud. The connector 2002 can include two arms 2073, which can be positioned opposite each other as show, although various other configurations or numbers of arms 2073 could be used.
As another connector (e.g., sometimes referred to as a mating connector) is coupled to the distal end 2004 of the connector 2002, the other (e.g., mating) connector can push the valve member 2065 proximally. In some cases, a projection on the mating connector can abut against the distal end of the valve member 2065 and can directly push the valve member 2065 in the proximal direction toward the open position. In some cases, during connection, the mating connector can push the one or more arms 2073 proximal. The base 2075 can push the flange 2071 distally, which can move the valve member 2065 toward the open configuration. In some embodiments, the arm(s) 2073 can be integrally formed with the valve member 2065. For example, the base 2075 can be a flange that extends laterally outward from the exterior of the valve member 2065.
In some embodiments, the arms 2073 can be coupled to the valve member 2065. For example, the opening through the base 2075 can have a friction fit with the valve member 2075. In some cases, the opening can be sized to have the friction fitting with the valve member 2065. With reference to
The valve member 2065 can be biased toward the closed position. The connector 2002 can include a biasing member 2079, which can bias the closure system 2006 to the closed configuration, such as by biasing the valve member 2065 to the distal or closed position. The biasing member 2079 can include a first securing portion or ring 2081 and a second securing portion or ring 2083. The first securing ring 2081 can be seated in a groove 2087 on the housing 2010 (e.g., on the first or distal housing portion 2010a), such as near the distal end. The second securing ring 2083 can be seated on the valve member 2065, such as proximal of the flange 2071. The biasing member 2079 can include one or more resilient portions or straps 2085, which can extend between the first ring 2081 and the second ring 2083. When the valve member 2065 is moved proximally, the flange 2071 can push the second securing ring 2083 proximally, while the first securing ring 2081 remains in the groove 2087, so that the resilient strap(s) 2085 stretch. The resilient band(s) 2085 can provide the biasing force to urge the valve member 2065 distally, such as back to the closed position. The second securing ring 2083 can press the flange 2061 in the distal direction, and the flange 2061 can press the base 2075 and/or the arms 2073 distally, in some implementations. The housing 2010 (e.g., the distal housing portion 2010a) can have one or more slot(s) 2089, which can receive the strap(s) 2085. The second housing portion 2010b can have one or more openings 2091, so that the strap(s) 2085 can extend from outside the housing 2010 to the interior of the housing 2010. The first securing portion or ring 2081 and/or the second securing portion or ring 2083 can be secured to the housing 2010 and/or to the valve 2065 in various other manners, such as using an adhesive, a clamp, a friction fitting, a bolt, a pin, or any other suitable coupling mechanism. The first securing portion or ring 2081 can be coupled on an exterior of the housing 2010 and the second securing portion or ring 2083 can be disposed inside an interior of the housing 2010.
Various other biasing members could be used.
The connector 2002 can include a rotation mechanism 2012, which can include features similar to the other embodiments disclosed herein. The rotation mechanism 2012 can be configured to enable the third or proximal housing portion 2010c (e.g., including the proximal end 2014) to rotate relative to the second or central housing portion 2010b and/or relative to the first or distal housing portion 2010a (e.g., including the distal end 2004 or femail luer). In some embodiments, the rotation mechanism 2012 can be configured to permit rotation of the proximal end 2014 in a first direction (e.g., counterclockwise) and to impede rotation of the proximal end 2014 in a second direction (e.g., clockwise).
The housing 2010 (e.g., the second or center housing portion 2010b) can include multiple sidewall sections 2030a-d separated by gaps 2096 (e.g., similar to any of
The opposing sidewall sections 2030b and 2030d can have one or more protrusions 2037, which can extend inwardly from the sidewall sections 2030b and 2030d. The protrusions 2037 can be similar to the housing teeth 2036 disclosed herein. In some embodiments, the projections 2037 can include an engagement surface, which can be similar to other embodiments disclosed herein. A line normal to the engagement surface can extend substantially tangential to a curve along the path of motion of the protrusions 2037, or varying from the tangential direction by about 20 degrees, about 15 degrees, about 10 degrees, about 5 degrees, about 3 degrees, about 2 degrees, about 1 degree, or less, or any ranges or values therebetween, although other configurations could be used.
The housing portion 2010c can include one or more pawls 2025, which can be configured to engage the protrusions 2037 when the connector is in the engaged state (e.g., with the sidewall sections 2030b and 2030d pressed inward). The pawls 2025 can be similar to other embodiments disclosed herein. The pawls 2025 can extend out from a connection point on the housing portion 2010c (e.g., from an exterior of the lumen forming part of the flow path 2008. The pawl 2025 can be curved so that an end portion of the pawl 2025 extends along a direction that is generally tangential to a curve along the path of motion of the rotating pawls 2025. The pawls 2025 can have an engagement surface and a sliding surface, similar to other embodiments discussed herein. A line normal to the engagement surface can extend generally tangentially to a curve along the path of motion of the engagement surface as the pawls 2025 rotate relative to the housing 2010, or varying from the tangential direction by about 20 degrees, about 15 degrees, about 10 degrees, about 5 degrees, about 3 degrees, about 2 degrees, about 1 degree, or less, or any ranges or values therebetween, although other configurations could be used.
When the connector 2002 is in the engaged configuration, rotation of the third housing portion 2010c in the tightening direction (e.g., clockwise in
When the connector 2002 is in the engaged configuration, rotation of the third housing portion 2010c in the loosening direction (e.g., counter clockwise in Figure) relative to the second housing portion 2010b can cause the pawl(s) 2025 to contact the protrusion(s) so that the pawl(s) 2025 are deflected to permit the pawl(s) 2025 to rotate past the corresponding protrusion(s) 2037. For example, the pawl 2025 can have a sliding surface that is configured to contact the protrusion 2037 and slide along the protrusion 2037 as the proximal end portion 2014 rotates in the loosening direction. The pawl 2025 can be deflected (e.g., inwardly) when the sliding surface of the pawl 2025 engages the protrusion 2037. When the pawl 2025 rotates past the protrusion 2037, the pawl 2025 can return to its default or unflexed position (e.g., shown in
The distance that the sidewall sections 2030b and 2030d can be pressed inward can be limited by stops, similar to other embodiments disclosed herein. For example, when the second sidewall section 2030b is pressed inward, a first end of the second sidewall section 2030b can abut against a first end of the first sidewall section 2030a and/or a second end of the second sidewall section 2030b can abut against a first end of the third sidewall section 2030c. When the fourth sidewall section 2030d is pressed inward, a first end of the fourth sidewall section 2030d can abut against a second end of the first sidewall section 2030a and/or a second end of the fourth sidewall section 2030d can abut against a second end of the third sidewall section 2030c. Displacing the one or more sidewall sections 2030a-d to the engaged configuration can collapse one or more corresponding gaps 2096. The size of the corresponding gaps 2096 can set the displacement distance that the one or more sidewall sections 2030a-d can be displaced. When the one or more corresponding gaps 2096 are collapsed, the one or more sidewall sections 2030a-d can be impeded from being displaced further inward (e.g., even if additional squeezing force were applied).
The stops can impede the protrusions 2037 from being displaced so far inward that they would block the pawls 2025 and third housing portion 2010c from rotating in the loosening direction relative to the second housing portion 2010b. For example, when the sidewall sections 2030b and 2030d are pressed inward until they abut against the other sidewall sections 2030a and 2030c, the protrusions 2037 can be positioned so that they can displace the pawls 2025 inward to permit the proximal end portion 2014 to rotate in the loosening direction (e.g., counter clockwise in
When the connector 2002 is in the disengaged configuration (e.g., as shown in
The connector 2002 can include one or more buttons (e.g., the side wall sections 2030b and 2030d), which can be pressed inward by a user to transition the connector 2002 from the disengaged state to the engaged state. When the user is connecting a main ting connector to the femail luer, the user can press the button(s) inward to and can start to thread the mating connector onto the female luer, which can cause the female luer (and the rest of the third housing portion 2010c) to rotate in the tightening direction (e.g., clockwise). The pawls 2025 can engage the protrusions 2037 to impede further rotation of the third housing portion 2010c relative to the second housing portion 2010b. The user can then continue to thread the mating connector into engagement with the female luer (e.g., while holding the second housing portion 2010b and while pressing the button(s)). The user can release the button(s) (e.g., 2030b and 2030d), and the connector 2002 can transition to the disengaged state, which can permit the third housing portion 2010c (and the female luer) to rotate freely in both directions relative to the second housing portion 2010b, to impeded disconnection of the mating connector from the female luer (e.g., even if the user were to rotate the mating connector in the loosening direction while holding the second housing portion 2010b). The connector 2002 can transition between the engaged state and the disengaged state without axial movement of any component(s) of the connector 2002. The connector 2002 can transition between the engaged state and the disengaged state by radial movement of a portion of the housing 2010 (e.g., of the second housig portion 2010b). The connector 2002 can transition between the engaged state and the disengaged state by deformation of a portion of the housing 2010 (e.g., of one or both of sidewall portions 2030b and 2030d). The features that engage to impede rotation in the tightening direction (e.g., the pawls 2025 and the protrusions 2037) can be disposed inside the connector 2002, such as in an internal chamber defined by the second housing portion 2010b.
In some embodiments, a connector 2020 similar to those disclosed in other embodiments herein can be integrated into another medical device, such as a syring, a vial adapter, or a bag spike, etc. The third housing portion 2010c can an integral part of the other medical device, for example.
The housing 2010 (e.g., housing portions 2010a-c), the valve member 2065, the and the actuation arm(s) 2073 can be made of a substantially rigid material, such as polycarbonate plastic, although various other polymers and other materials could be used. The strap biasing member 2079, and the seal members 2069 and 2067 can be made of a resilient or flexible material, such as silicone, or rubber, or the like. The connector 2002 can have a biasing member 2079 for biasing the valve 2065 toward the closed position, and that biasing member can be independent of the structure that transitions the connector 2002 between the engaged state and the disengaged state. For example, when the straps 2085 are stretched, or when the spring is compressed, that does not apply force to the housing portions 2030b and 2030d that move to transition between the engaged and disengaged states. When the housing portions 2030b and 2030d move between the engaged and disengaged states, that does not apply force to the biasing member 2079 or to the valve member 2065.
Various alternatives and combinations of the disclosed features can be used. Also, the proportions and ratios of the sizes of various components, edges, and surfaces that are shown in the Figures are intended to form part of this disclosure, even when not specifically discussed.
Unless the context clearly requires otherwise, throughout the description and the claims, the words “comprise,” “comprising,” “include,” “including,” and the like are to be construed in an inclusive sense, as opposed to an exclusive or exhaustive sense; that is to say, in the sense of “including, but not limited to.” The words “coupled” or connected,” as generally used herein, refer to two or more elements that can be either directly connected, or connected by way of one or more intermediate elements. Additionally, the words “herein,” “above,” “below,” and words of similar import, when used in this application, shall refer to this application as a whole and not to any particular portions of this application. Where the context permits, words in the Detailed Description using the singular or plural number can also include the plural or singular number, respectively. The words “or” in reference to a list of two or more items, is intended to cover all of the following interpretations of the word: any of the items in the list, all of the items in the list, and any combination of the items in the list. All numerical values provided herein are intended to include similar values within a range of measurement error.
Although this disclosure contains certain embodiments and examples, it will be understood by those skilled in the art that the scope extends beyond the specifically disclosed embodiments to other alternative embodiments and/or uses and obvious modifications and equivalents thereof. In addition, while several variations of the embodiments have been shown and described in detail, other modifications will be readily apparent to those of skill in the art based upon this disclosure. It is also contemplated that various combinations or sub-combinations of the specific features and aspects of the embodiments may be made and still fall within the scope of this disclosure. It should be understood that various features and aspects of the disclosed embodiments can be combined with, or substituted for, one another in order to form varying modes of the embodiments. Any methods disclosed herein need not be performed in the order recited. Thus, it is intended that the scope should not be limited by the particular embodiments described above.
Conditional language, such as, among others, “can,” “could,” “might,” or “may,” unless specifically stated otherwise, or otherwise understood within the context as used, is generally intended to convey that certain embodiments include, while other embodiments do not include, certain features, elements and/or steps. Thus, such conditional language is not generally intended to imply that features, elements and/or steps are in any way required for one or more embodiments or that one or more embodiments necessarily include logic for deciding, with or without user input or prompting, whether these features, elements and/or steps are included or are to be performed in any particular embodiment. Any headings used herein are for the convenience of the reader only and are not meant to limit the scope.
Further, while the devices, systems, and methods described herein may be susceptible to various modifications and alternative forms, specific examples thereof have been shown in the drawings and are herein described in detail. It should be understood, however, that the disclosure is not to be limited to the particular forms or methods disclosed, but, to the contrary, this disclosure covers all modifications, equivalents, and alternatives falling within the spirit and scope of the various implementations described. Further, the disclosure herein of any particular feature, aspect, method, property, characteristic, quality, attribute, element, or the like in connection with an implementation or embodiment can be used in all other implementations or embodiments set forth herein. Any methods disclosed herein need not be performed in the order recited. The methods disclosed herein may include certain actions taken by a practitioner; however, the methods can also include any third-party instruction of those actions, either expressly or by implication.
The ranges disclosed herein also encompass any and all overlap, sub-ranges, and combinations thereof. Language such as “up to,” “at least,” “greater than,” “less than,” “between,” and the like includes the number recited. Numbers preceded by a term such as “about” or “approximately” include the recited numbers and should be interpreted based on the circumstances (e.g., as accurate as reasonably possible under the circumstances, for example ±5%, ±10%, ±15%, etc.). For example, “about 3.5 mm” includes “3.5 mm.” Phrases preceded by a term such as “substantially” include the recited phrase and should be interpreted based on the circumstances (e.g., as much as reasonably possible under the circumstances). For example, “substantially constant” includes “constant.” Unless stated otherwise, all measurements are at standard conditions including ambient temperature and pressure.
This application claims the benefit under 35 U.S.C. § 119(e) of U.S. Provisional Patent Application No. 63/426,314, filed Nov. 17, 2022, and titled MEDICAL CONNECTORS. The entirety contents of each of the above-identified application(s) are hereby incorporated by reference herein and made part of this specification for all that they disclose.
| Number | Date | Country | |
|---|---|---|---|
| 63426314 | Nov 2022 | US |
