Patent Application
20180071168
This present invention relates to the medical field and more particularly to apparatus and associated methods for sterilization of and sterile handling of pharmaceutical materials and containers for pharmaceuticals, including bringing pharmaceuticals into form for administration to medical or veterinary patients. In one aspect, it relates to the programmed and automatic operation of such apparatus.
The subject of filling pharmaceuticals into pharmaceutical containers is a major aspect of the Pharmaceuticals Industry. The subject is heavily controlled by various governmental and official bodies in various countries. Technologically, the subject is a challenge in that the pharmaceutical products need to be filled into the containers under very strict aseptic conditions. Very specific procedures are specified for this task to a degree that makes the handling of pharmaceuticals profoundly different from the handling of any other industrial product, including specifically semiconductors, which also demand extreme and consistent environmental conditions. Indeed, the parallels between the handling of semiconductors in semiconductor “clean laboratories” and the handling of pharmaceuticals in aseptic isolators are superficial. They share the use of such “clean laboratories”, but there is no inherent aseptic requirement associated with semiconductor manufacture.
The filling of pharmaceutical containers with fluid pharmaceuticals specifically requires the aseptic handling of both the containers and the fluid pharmaceutical itself. This leads to complex mechanisms and procedures, many of which may be automated to one degree or another. Often, the production equipment for fluid pharmaceutical handling is bulky and expensive. This creates a problem for smaller operations, particularly in the small-scale production and development environments. As the field has developed, the need for smaller, more compact equipment, particularly in the filling and compounding of fluid pharmaceuticals, has become evident.
The prior art is typically characterized by the use of vibratory bowls and escapements. Many prior art systems also employ gloves for use by the operator to access the interior of the chamber.
In one general aspect, the invention features a method for filling nested pharmaceutical containers with a pharmaceutical fluid substance, such as a liquid, solution, or suspension having therapeutic properties. The method includes providing a filling system comprising a sterilizable chamber capable of maintaining an aseptic condition, with the chamber comprising a filling station and a planar rotary stage having a destination fiducial locating structure including constraining surfaces. The method also includes transferring into the chamber at least one container tub sealed by a container tub cover and containing a container nest bearing a plurality of pharmaceutical containers, aseptically sealing the chamber, and establishing an aseptic condition within the chamber. The container nest bearing the plurality of pharmaceutical containers is transferred into the destination fiducial locating structure such that the container nest is held in place by the constraining surfaces, and the pharmaceutical fluid substance is dispensed into at least a portion of the plurality of pharmaceutical containers by operating both the rotary stage and the filling station.
In preferred embodiments the operating the filling station can include rotating the filling station. The dispensing the pharmaceutical fluid substance can comprise dispensing the pharmaceutical fluid substance on an iterative and serial basis into the containers. Providing a filling system can comprise providing a filing apparatus comprising at least one cover removal station within the chamber, with the transferring into the destination fiducial locating structure the container nest comprising removing the container tub cover from the container tub by operating both the rotary stage and the at least one cover removal station. Operating the at least one cover removal station can comprise rotating the at least one cover removal station. Providing the filling system can comprise providing within the chamber at least one cover removal station having an engagement tool, transferring into the chamber at least one container tub can comprise attaching to the container tub cover a cover removal fixture, and operating the at least one cover removal station can comprise engaging the engagement tool with the cover removal fixture.
The method can further comprise transferring into the chamber a container closure tub sealed by a container closure tub cover and containing at least one container closure nest bearing a plurality of pharmaceutical container closures. The method can further comprise positioning one of the at least one closure nests to align closures in the at least one closure nest with corresponding containers in the container nest, transferring the nests of aligned closures and containers to the ramming station by rotating the rotary stage, and forcing the closures into the corresponding containers. Positioning one of the at least one closure nests can comprise obtaining image information about the one of the at least one closure nest, and positioning the one of the at least one closure nests based on the image information.
Positioning one of the at least one closure nest can comprise applying a vacuum to suction cups, lifting the container closure nest with the suction cups, and operating the rotary stage. Transferring into the destination fiducial locating opening the container nest can comprise applying a vacuum to suction cups, lifting the container nest with the suction cups, and operating the rotary stage. Dispensing the pharmaceutical fluid substance can comprise simultaneously and/or serially operating the rotary stage and the filling station, and removing the container tub cover can comprise simultaneously and/or serially operating the rotary stage and the at least one cover removal station.
In another general aspect, the invention features a system for filling nested pharmaceutical containers with a pharmaceutical fluid substance comprising a sterilizable chamber capable of maintaining an aseptic condition. The chamber includes a filling station, and a planar rotary stage having a rotary stage rotation axis and comprising a destination fiducial locating structure including constraining surfaces disposed and shaped to receive and hold a pharmaceutical container nest bearing a plurality of pharmaceutical containers.
In preferred embodiments the filling station can comprise a fluid product dispenser head, with the filling station being configured to be rotatable about a filling station rotation axis parallel to the rotary stage rotation axis to position in combination with rotation of the rotary stage the dispenser head over any one of the plurality of pharmaceutical containers held in the container nest in the destination fiducial locating structure. The chamber can further comprise at least one cover removal station and the rotary stage can further comprise a first source fiducial locating structure including constraining surfaces disposed and shaped to receive and hold a pharmaceutical container closure tub sealed by a container closure tub cover and containing at least one pharmaceutical container closure nest bearing a plurality of pharmaceutical container closures, and at least one second source fiducial locating opening disposed and shaped to receive and hold a pharmaceutical container tub sealed by a container tub cover and containing a pharmaceutical container nest bearing a plurality of pharmaceutical containers.
The at least one cover removal station can be disposed and configured to be rotatable about a cover removal station rotation axis parallel to the rotary stage rotation axis to remove in combination with rotation of the rotary stage the container tub cover from the at least one container tub and the container closure tub cover from the container closure tub. At least one cover removal station can comprise an engagement tool disposed and configured to engage with engagement fixtures pre-attached to the container tub cover and to the container closure tub cover.
The system can further comprise at least one camera disposed to obtain image information about at least one of the container nest and the closure nest, and a controller, with the chamber further comprising at least one vacuum pickup system comprising suction cups disposed to engage with the container nests and the container closure nests, the at least one vacuum pickup system being configured in combination with rotation of the rotary stage to lift a pharmaceutical container nest from a pharmaceutical container tub held in one of the at least one second source fiducial locating openings and to deposit the pharmaceutical container nest in the destination fiducial locating opening in combination with rotation of the rotary stage and to lift a pharmaceutical container closure nest from a pharmaceutical container closure tub held in the first source fiducial locating opening and to deposit the container closure nest on top of the pharmaceutical container nest under control of the controller.
The controller can be operative to instruct the at least one camera to provide to the controller the image information and the controller can be operative to control the rotation of the rotary stage to place the closures in the closure nest in correspondence with containers in the container nest. The system can further comprise a ram system configured for forcing the closures into the corresponding containers.
The system can further comprise at least one rotatable cover removal station having a cover removal station rotation axis parallel to the rotary stage rotation axis, at least one vacuum pickup system for placing the container closure nest on the container nest with closures in the closure nest in correspondence with containers in the container nest, and a ram system for forcing the closures into the containers, with the filing station being a rotatable filling station having a filling station rotation axis parallel to the rotary stage rotation axis and comprising a fluid product dispenser head. The system can further comprise at least one camera for obtaining image information of at least one of the container nest and the closure nest, and a controller comprising a memory and a processor. The controller can be operative to instruct the rotary stage to rotate to angular positions that are one of predetermined and based on the image information and to control the at least one cover removal station, the filling station, the at least one vacuum pickup system, and the ram system to operate in conjunction with the rotary stage.
In a further general aspect, the invention features a system for filling nested pharmaceutical containers with a pharmaceutical fluid substance that includes means for establishing and maintaining an aseptic condition in a chamber, means for constraining a container nest bearing a plurality of pharmaceutical containers in the chamber, and means for transferring a container nest to the means for constraining from a container tub in the chamber. It also includes means for rotating the means for constraining in the chamber; and means for dispensing the pharmaceutical fluid substance into at least a portion of the plurality of pharmaceutical containers in the container nest while the container nest is constrained by the means for constraining.
In a further aspect, a system is provided for filling nested pharmaceutical containers with a pharmaceutical fluid substance, the system comprising a sterilizable chamber capable of maintaining an aseptic condition, the chamber comprising: a planar rotary stage having a rotary stage rotation axis, a plurality of locating structures positioned with respect to the rotary stage at different positions around the rotary stage rotation axis, for holding nests of pharmaceutical container parts at the different positions around the rotary stage rotation axis, and a container filling station having a dispensing head for filling the containers while they are held in a nest at one of the locating structures. The locating structures may include surfaces associated with a first tub-holding opening in the rotary stage for holding a first tub containing at least one nest of containers, surfaces associated with a second tub-holding opening in the rotary stage for holding a second tub containing at least one nest of closures, and surfaces associated with a destination nest-holding opening in the rotary stage for holding at least one nest.
The chamber may further comprise at least one vacuum pickup system comprising suction cups disposed to engage with the container nest and container closure nest held on the rotary stage, the at least one vacuum pickup system being configured in combination with rotation of the rotary stage to lift a pharmaceutical container nest from a pharmaceutical container tub and to deposit the pharmaceutical container nest in the destination opening in combination with rotation of the rotary stage and to lift a pharmaceutical container closure nest from a pharmaceutical container closure tub and to deposit the container closure nest on top of the pharmaceutical container nest.
At least one of the locating structures may include a reconfigurable locating structure with one or more adjustable positioning surfaces to position a tub with respect to the rotary stage. The reconfigurable locating structure may include at least one pair of a reconfigurable stopping member and a restraining member disposed opposite each other across an opening in the rotary stage to precisely position at a first predetermined position a tub that contains at least one nest. The stopping member may be adjustable to stop the tub at the first predetermined position by a rotary adjustment and the restraining member may be disposed to restrain the tub in the first predetermined position.
At least a first of the reconfigurable locating structures may include a rotary positioning element having an axis of rotation parallel to a plane of the rotary stage and includes a plurality of different positioning surfaces that are selectable by rotating the rotary positioning element. At least one of the reconfigurable locating structures may include a pair of opposing rotary positioning elements each having an axis of rotation parallel to a plane of the rotary stage and each may include a plurality of different positioning surfaces that are selectable by rotating the rotary positioning elements to accommodate different nest widths.
At least one of the reconfigurable locating structures may include at least a first pair of opposing positioning elements that define positioning surfaces that oppose each other along a first positioning axis that is at least generally parallel to a plane of the rotary stage and at least a second pair of opposing positioning elements that define positioning surfaces that oppose each other along a second positioning axis that is at least generally parallel to a plane of the rotary stage and at least generally perpendicular to the first positioning axis. The at least one of the positioning elements in each of the first and second pairs of positioning elements may include a rotary positioning element having an axis of rotation parallel to a plane of the rotary stage and including a plurality of different positioning surfaces.
The system may further include a reconfigurable vacuum pickup system comprising: a first set of suction cups arranged in a first pattern, a second set of suction cups arranged in a second pattern different from the first pattern, and a selection mechanism operative to position either the first set of suction cups or the second set of suction cups to engage with the at least a first of the nests of pharmaceutical container parts while it is held by one of the plurality of locating structures. The selection mechanism of the reconfigurable vacuum pickup system may include a rotary mechanism operative to position the first or second sets of suction cups in an engagement position.
The system may further include at least one cover removal station positioned to remove covers from tubs containing at least one nest of pharmaceutical packaging materials held in one of the locating structures. The at least one cover removal station may be rotatable about a cover removal station rotation axis parallel to the rotary stage rotation axis to remove the tub covers in combination with rotation of the rotary stage. The at least one cover removal station may comprises an engagement tool disposed and configured to engage with a cover removal fixture on the tub cover.
The filling station may be configured to be rotatable about a filling station rotation axis parallel to the rotary stage rotation axis to position in combination with rotation of the rotary stage the dispenser head over any one of the plurality of pharmaceutical containers held by one of the one of the locating structures.
The system may further comprise at least one camera disposed to obtain image information about at least one of the nests of pharmaceutical container parts. The system may further comprise a ram system configured for forcing nested closures into corresponding nested containers.
The system may further comprise at least one rotatable cover removal station having a cover removal station rotation axis parallel to the rotary stage rotation axis; at least one vacuum pickup system for placing a container closure nest on a container nest with closures in the closure nest in correspondence with containers in the container nest; a ram system for forcing the closures into the containers; and wherein the filing station is a rotatable filling station having a filling station rotation axis parallel to the rotary stage rotation axis and comprising a fluid product dispenser head.
The system may further comprise at least one camera for obtaining image information of at least one of the container nest and the closure nest, a controller comprising a memory and a processor, and wherein the controller is operative to instruct the rotary stage to rotate to angular positions that are one of predetermined and based on the image information and to control the at least one cover removal station, the filling station, the at least one vacuum pickup system, and the ram system to operate in conjunction with the rotary stage.
In another aspect, a system is provided for filling nested pharmaceutical containers with a pharmaceutical fluid substance, comprising: means for establishing and maintaining an aseptic condition in a chamber; means for constraining a container nest bearing a plurality of pharmaceutical containers in the chamber; means for transferring to the means for constraining a container nest from a container tub in the chamber; means for rotating the means for constraining in the chamber; and means for dispensing the pharmaceutical fluid substance into at least a portion of the plurality of pharmaceutical containers in the container nest while the container nest is constrained by the means for constraining.
In a further aspect, a method is provided for filling nested pharmaceutical containers with a pharmaceutical fluid substance, the method comprising: providing a filling system comprising a sterilizable chamber capable of maintaining an aseptic condition, the chamber comprising a filling station and a planar rotary stage having a destination locating structure; transferring into the chamber at least one container tub sealed by a container tub cover and containing a container nest bearing a plurality of pharmaceutical containers; aseptically sealing the chamber; establishing an aseptic condition within the chamber; transferring into the destination locating structure the container nest bearing the plurality of pharmaceutical containers such that the container nest is held in place; and dispensing the pharmaceutical fluid substance into at least a portion of the plurality of pharmaceutical containers by operating both the rotary stage and the filling station. The operating the filling station may include rotating the filling station. The dispensing the pharmaceutical fluid substance may comprise dispensing the pharmaceutical fluid substance on an iterative and serial basis into the containers.
The providing a filling system may comprise providing a filing apparatus comprising at least one cover removal station within the chamber and wherein the transferring into the destination locating structure the container tub comprises removing the container tub cover from the container tub by operating both the rotary stage and the at least one cover removal station. The operating the at least one cover removal station may comprise rotating the at least one cover removal station. The providing the filling system may comprise providing within the chamber at least one cover removal station having an engagement tool, the transferring into the chamber at least one container tub may comprise attaching to the container tub cover a cover removal fixture; and wherein the operating the at least one cover removal station comprises engaging the engagement tool with the cover removal fixture.
The method may further comprise transferring into the chamber a container closure tub sealed by a container closure tub cover and containing at least one container closure nest bearing a plurality of pharmaceutical container closures. The method may further comprise positioning one of the at least one closure nests to align closures in the at least one closure nest with corresponding containers in the container nest; transferring the nests of aligned closures and containers to a ramming station by rotating the rotary stage; and forcing the closures into the corresponding containers. The method may further include adjusting a tub locating structure to accommodate a size of the closure nest tub. The positioning one of the at least one closure nest may comprise: obtaining image information about the one of the at least one closure nests; and positioning the one of the at least one closure nests based on the image information. The positioning one of the at least one closure nest may comprise: applying a vacuum to suction cups; lifting the container closure nest with the suction cups; and operating the rotary stage.
The transferring into the destination locating opening the container nest may comprise: applying a vacuum to suction cups; lifting the container nest with the suction cups; and operating the rotary stage. The method may further include selecting one of a plurality of sets of suction cups and wherein the applying a vacuum to suction cups is performed for the selected set of suction cups. The selecting may include rotating one of the plurality of sets of suction cups into position. The method may further include the destination locating structure to accommodate a size of the container nest. The adjusting may be performed in two at least generally orthogonal directions. The method may further include adjusting a tub locating structure to accommodate a size of the container nest tub.
In another general aspect, the invention features a container assembly for holding nested pharmaceutical container parts. It includes a container comprising a bottom, a top lip that provides a horizontal top sealing surface that has a peripheral outline, and sidewalls located between the bottom and the top lip. It also includes a peelable container cover consisting of a sheet of flexible material sealed to the sealing surface of the top lip of the rectangular container to seal the contents of the container, and a cover removal fixture on the container cover.
The sealed peelable container cover may include a portion that extends outside of the peripheral outline of the top sealing surface of the container, and the cover removal fixture may be on the portion of the peelable container cover that extends outside of the peripheral outline of the top sealing surface of the container. The container may be rectangular and includes four sidewalls. The cover removal fixture may include an appendage to allow it to be engaged by an engagement tool. The cover removal fixture may include a ball-shaped appendage to allow it to be engaged by an engagement tool. The peelable container cover may be heat sealed to the sealing surface of the top lip of the rectangular container to seal the contents of the container against decontamination. The peelable container cover may be sealed to the sealing surface of the top lip of the rectangular container to seal the contents of the container against decontamination using a chemical agent. The peelable container cover may sealed to the sealing surface of the top lip of the rectangular container to seal the contents of the container against decontamination using a radiation. The peelable container cover may be sealed to the sealing surface of the top lip of the rectangular container to seal the contents of the container against decontamination using plasma. The peelable cover may be made of a plastic material. The peelable cover may be made of an impermeable laminated foil. The peelable cover may be made of a polymeric membrane. The cover removal fixture may be clipped to a portion of the peelable container cover that extends outside of the peripheral outline of the top sealing surface of the container. The sealed container may hold sterilized pharmaceutical containers or closures.
In a further aspect, a method is provided for removing within a controlled environment enclosure a container cover from a sealed container, the sealed container being sealed by the container cover, the method comprising: providing the container in the controlled environment enclosure with the cover sealed to a sealing surface of a lip of the container to seal the contents of the container against decontamination, the cover having a cover removal fixture, decontaminating the sealed container in the controlled environment enclosure, engaging the cover removal fixture with an engagement tool, and removing the cover from the container using the engagement tool. The engaging may engage the cover removal fixture with a fork-shaped engagement tool. The engaging may engage a ball-shaped appendage on the cover removal fixture.
The providing may include providing sterilized pharmaceutical containers or closures in the sealed container before the decontaminating. The attaching may take place before the container is in the controlled environment enclosure. The decontaminating the sealed container in the controlled environment enclosure may take place before the removing the cover. The removing the cover may include moving the engagement tool relative to the container. The removing the cover may include moving both the container and the engagement tool. The method may further comprise attaching the cover removal fixture to the cover before providing the container in the controlled environment enclosure.
Systems and methods according to the invention need not employ either vibratory bowls or escapements. Nor do such systems or method require gloves. Systems and methods according to the invention can therefore address needs for compact, small-scale filling and compounding of fluid pharmaceuticals.
The above-mentioned and other features and objects of this invention, and the manner of attaining them, will become more apparent and the invention itself will be better understood by reference to the following description of an embodiment of the invention taken in conjunction with the accompanying drawings, wherein:
Corresponding reference characters indicate corresponding parts throughout the several views. Although the drawings represent embodiments of the present invention, the drawings are not necessarily to scale and certain features may be exaggerated in order to better illustrate and explain the present invention. The flow charts are also representative in nature, and actual embodiments of the invention may include further features or steps not shown in the drawings. The exemplifications set out herein illustrate embodiments of the invention, in one or more forms, and such exemplifications are not to be construed as limiting the scope of the invention in any manner.
The embodiments disclosed below are illustrative and not intended to be exhaustive or limit the invention to the precise form disclosed in the following detailed description. Rather, the embodiments are chosen and described so that others skilled in the art may utilize their teachings.
The present invention relates to an apparatus and method for filing pharmaceutical containers with a pharmaceutical fluid substance in a spatially constrained environment. In
Chambers 200 and 300 are separated from chamber 100 by upper wall 110 and lower wall 120 respectively and are not required to be capable of maintaining aseptic environments within their interiors. The communication of chamber 100 with the ambient environment may be via a suitable aseptically sealable access door 102, schematically shown in broken outline in
The terms “aseptic” and “sterilize” and their derivatives are to be understood as follows for the purposes of the present specification. Establishing an aseptic condition in the interior of a chamber shall be understood to mean establishing that condition throughout the internal atmosphere of the chamber as well as on substantially all exposed interior surfaces of the chamber. This shall include the surfaces of all items, containers, subsystems and the like exposed to the interior atmosphere of the chamber. To the extent that extremely tight crevices or microscopic crevices may exist in the interior of the chamber such that a sterilizing gas or vapor may not perfectly penetrate into such tight regions, for example, the degree of sterilization in practical cases may not be total. This is acknowledged in both the industry and in the standards set for the industry. The action of establishing an aseptic condition within the interior of the chamber and “sterilizing the interior of the chamber” shall have the same meaning in this specification.
Introducing into the interior of a chamber with an aseptic condition an item of which the surfaces are not suitably sterilized destroys the existing aseptic condition within the chamber. Conversely, introducing an aseptic or sterilized item into an interior of a chamber that does not have an aseptic condition within that interior does not render that interior aseptic. In fact, all it does is to destroy the aseptic condition of the surface of the item so introduced. Similarly, introducing filtered air, even with all biological entities filtered out, into an unsterilized chamber does not in any way sterilize the chamber or render it aseptic to a degree acceptable in the pharmaceutical industry. The reason is that the interior surfaces of the chamber are not sterilized by the introduction of such air. All that is achieved is to contaminate the filtered air with active biological species resident on the interior surfaces of the unsterilized chamber.
In the interest of clarity and completeness, it should also be recorded that in the art the term “aseptic” is also sometimes used in association with the introduction of pharmaceutical fluids along aseptic tubes into bodies within controlled chambers. In such cases the term in the art refers to the condition inside the tube or to the fact that the pharmaceutical fluid may be filtered to a suitable degree. This in no way sterilizes or renders aseptic the interior of the chamber in question. The aseptic condition in such cases is confined to the interior of the tube bearing the pharmaceutical stream. Such streams are often filtered to a high degree, but such filtering affects only the interior of the particular tube and does not in any way sterilize the interior of the chamber.
In some prior art systems, containers introduced into a chamber for the purposes of being filled with a pharmaceutical are routed through sterilizing subsystems. This kills biological species on the containers. When such sterilized containers are introduced into the chamber when the chamber itself is not aseptic the containers lose their aseptic condition as biological species contained within the chamber will deposit on the previously aseptic containers.
It should also be pointed out that pharmaceutical or semiconductor clean rooms of any quality level, including “Class 100”, “Class 10” or “Class 1”, even when employing laminar flow hoods and the like or any quality of HEPA (High Efficiency Particulate Air) filters or ULPA (Ultra Low Particulate Air) filters, cannot constitute an aseptic chamber because they do not have an assurable means to render the surfaces of the room sterile or aseptic. Standards for clean rooms exist from both the United States Federal Government and ISO (International Standards Organization). These specify in great detail to different standards the allowed particulate content of a cubic volume of air in such a clean room facility. None of these standards address the matter of biological species present on surfaces in the room. This serves to make the point that a chamber cannot be rendered aseptic by the management of its atmosphere or airflow only. Nor, conversely, can the chamber be rendered aseptic by the sterilization of only the surfaces of its interior.
The text “Guideline for Disinfection and Sterilization in healthcare Facilities, 2008” by Rutala et al from the Center for Disease Control lists a compendium of mechanisms and methods for sterilization. Our concern in this specification is specifically with those mechanisms for sterilizing the interior of a chamber; that is, sterilizing both the interior surfaces and the atmosphere within the chamber. Given the requirements, vapor base methods are most appropriate to the task. These include, but are not limited to, treatment with heated water vapor, hydrogen peroxide vapor, ozone, nitrogen dioxide, ethylene oxide, glutaraldehyde vapor or other suitable sterilizing gases and vapors. In one suitable method appropriate to the present invention, the sterilization is by means of hydrogen peroxide vapor which is then flushed using ozone before the chamber is employed in the filling of pharmaceutical containers.
The subsystems of the apparatus 1000 contained with sealable chamber 100 will now be described at the hand of
As shown in
Suitable container nests 500 and container closure nests 600; container tubs 530 and container closure tubs 630; and peelable tub covers 520 are described in co-pending U.S. patent application Ser. No. 14/912,145, the specification of which is hereby incorporated in full. Alternative cover gripping arrangements for the removal of tub covers from tubs are also described in co-pending U.S. patent application Ser. No. 14/398,538, the specification of which is hereby incorporated in full.
In the interest of clarity,
Fiducial locating opening 136 is specifically arranged to receive container nests 500 bearing pharmaceutical containers 510. Whereas tubs 530 and 630 naturally locate in fiducial locating openings 132 and 134 and are suspended by their own rims once in opening 132 and 134, containers 510 are correctly located in opening 136 and retained in position by some other means. To this end, fiducial locating opening 136 comprises four fiducial retaining guides 137. Baseplate 138 is located within fiducial locating opening 136 as a loose component of system 1000, and rests on the horizontal portions at the bottoms of each of the four fiducial retaining guides 137 (see
Rotary stage 130 may be lowered to assist in obtaining a less acute angle between cover 520 and tub 530. Too acute an angle can lead to the tearing of cover 520. Cover removal station 140 can be rotated while rotary stage 130 rotates so that the combined motions of cover removal station 140 and rotary stage 130 provide a low stress path for the removal of cover 520, thereby limiting the chances of tearing of cover 520. In particular, cover removal station 140 may be rotated to ensure that engagement tool 142 is not present above fiducial locating opening 132 when container tub 530 is placed in or removed from fiducial locating opening 132.
In some embodiments, system 1000 comprises a single cover removal station 140 for sequentially removing covers from tubs 520 and 620. In other embodiments, system 1000 may be equipped with two or more cover removal stations 140 for dedicated removal of covers from tubs 520 and 620 and other additional tubs. In some embodiments covers are simultaneously removed from tubs 520 and 620 and from other tubs, all the removal processes benefiting from a single rotary motion of rotary stage 130.
In
Another term employed to describe dispenser head 174 is “filling needle”. Suitable filling needles and protective sheathing arrangements for such filling needles are described in co-pending U.S. patent application Ser. Nos. 14/890,223 and 15/199,771, the specifications of which are hereby incorporated in full.
Cameras 210 and 220 are disposed to view and record the positioning of suction cups 152 and 162 on nests 500 and 600 respectively. In the embodiment shown in
Container closing ram system 180, shown in
Controller 400, shown in
A method based on system 1000 for filling nested pharmaceutical containers with a pharmaceutical fluid product will now be described at the hand of the flow chart given in
The method further comprises aseptically sealing [2030] the chamber 100 and establishing [2035] an aseptic condition within the chamber 100. The establishing [2035] an aseptic condition within the chamber 100 may comprise treating the interior of chamber 100 with any one or more of steam, hydrogen peroxide vapor, ozone, nitrogen dioxide, and ethylene oxide.
The method further comprises operating [2040] the at least one cover removal station 140 and rotating the rotary stage 130 to remove the container tub cover 520 from the at least one container tub 530 and remove the closure tub cover from the closure tub 630; operating [2050] the rotary stage 130 and one of the at least one vacuum pickup systems (for example 150 and/or 160) to transfer to the destination fiducial locating opening 136 the container nest 500 bearing the plurality of pharmaceutical containers 510; and dispensing [2060] on an iterative and serial basis a pharmaceutical fluid substance into at least a portion of the plurality of pharmaceutical containers 510 by operating the rotary stage 130 and the filling station 170. The phrase “iterative and serial” is employed in this specification to describe the fact that the same operational steps are repeatedly used to fill the various containers and the fact that the containers are filled one after another, as opposed to simultaneously. In some embodiments multiple containers may be simultaneously filled using a filling station with multiple dispenser heads.
Steps [2040], [2050], and [2060] each involves rotating the rotary stage 130 and operating another device, being respectively the cover removal station 140, one of the at least one vacuum pickup systems (for example 150 and/or 160), and the filling station 170. The motions involved may be simultaneous in some cases or embodiments, and serial in other cases or embodiments. In some embodiments some of the motions may be simultaneous and others may be serial.
The operating [2040] the at least one cover removal station 140 may comprise engaging an engagement tool (for example tool 142) with a cover removal fixture (for example fixture 540) pre-attached to the cover being removed. Operating [2050] one of the at least one vacuum pickup systems may comprise contacting the container nest 500 with a plurality of suction cups 152 while applying a vacuum to the suction cups 152. The dispensing [2060] a pharmaceutical fluid substance into at least a portion of the plurality of pharmaceutical containers may comprise disposing on an iterative and serial basis a fluid product dispenser head 174 of the filling station 170 over the openings of the at least a portion of the plurality of pharmaceutical containers 510. The operating [2050] the rotary stage 130 and one of the at least one vacuum pickup systems may comprise operating a camera 210 to obtain image information of the container nest 500 bearing the plurality of pharmaceutical containers 510 and to position the one of the at least one vacuum pickup systems over the container nest 500.
The method further comprises operating [2070] one of the at least one vacuum pickup systems (for example 150 and/or 160) and the rotary stage 130 to transfer to the destination fiducial locating opening 136 one of the at least one container closure nests 600 bearing the plurality of pharmaceutical container closures 610 and positioning the at least one closure nest 600 to align closures 610 with containers 510; operating [2080] the rotary stage 130 to jointly position the aligned container nest 500 and closure nest 600 in the ramming system 180; and operating [2090] the ramming system 180 to force the plurality of container closures 610 into the plurality of containers 510.
Operating [2070] one of the at least one vacuum pickup systems may comprise contacting the container closure nest 600 with a plurality of suction cups 162 while applying a vacuum to the suction cups 162. Operating [2090] the ramming system 180 may comprise driving the plurality of pharmaceutical containers 510 toward an upper ram plate 182 of the ramming system 180.
The operating [2070] the rotary stage 130 and one of the at least one vacuum pickup systems may comprise operating a camera 220 to obtain image information of the one of the at least one container closure nests 600 bearing the plurality of pharmaceutical container closures 610 and to position the one of the at least one vacuum pickup systems over the one of the at least one container closure nests 600.
The providing [2010] a filling apparatus may comprise providing a filling apparatus further comprising a controller 400 and a software program executable by controller 400. Any one or more of the aseptically sealing [2030] the chamber 100; establishing [2035] an aseptic condition within the chamber 100; operating the rotary stage 130; operating the at least one cover removal station 140; operating [2070] one of the at least one vacuum pickup systems (150 and/or 160); operating the filling station 170; and operating [2090] the ramming system 180 may be done automatically by executing the software program in the controller.
In the embodiment described at the hand of
In other embodiments a plurality of the steps of removing a container tub cover from at least one container tub 530; removing a container tub cover from at least one container closure tub 630; transferring to the destination fiducial locating opening 136 the container nest 500; dispensing a pharmaceutical fluid substance into pharmaceutical containers 510; transferring to the destination fiducial locating opening 136 one of the at least one container closure nests 600; and positioning the aligned container nest 500 and closure nest 600 in the ramming system 180 comprises rotating a rotary stage bearing the container nests and container closure nests.
In a general embodiment, at least one of the steps of removing a container tub cover from at least one container tub 530; removing a container tub cover from at least one container closure tub 630; transferring to the destination fiducial locating opening 136 the container nest 500; dispensing a pharmaceutical fluid substance into pharmaceutical containers 510; transferring to the destination fiducial locating opening 136 one of the at least one container closure nests 600; and positioning the aligned container nest 500 and closure nest 600 in the ramming system 180 comprises rotating a rotary stage bearing the container nests and container closure nests.
It is to be noted that neither filling system 1000, nor the associated method, needs to employ the vibratory bowls or escapements that are typical of the prior art. Unlike many prior art systems, filling system 1000 also does not require the use of gloves for use by the operator to access the interior of the chamber.
The system above has been described as employing a controller that runs stored software running on a general-purpose computer platform, but it could also be implemented in whole or in part using special-purpose hardware.
The system described above also employs fiducial openings defined in the rotary stage to hold the tubs and nests, but it could also employ other types of fiducial structures that include other configurations of constraining surfaces sufficient to hold the tubs and nests in place. Notched posts mounted on the rotary stage could hold the tubs and/or nests above the rotary stage, for example.
Another embodiment of a filling system according to the invention may be in all respects identical to the embodiments described above at the hand of
Vacuum pickup system 150′ comprises two rotary arms 154a′ and 154b′, in their turn respectively comprising pluralities of suction cups 152a′ and 152b′. Vacuum pickup system 150′ is arranged to pick up nests 500 of containers 510 by means of suction cups 152a′ and 152b′. Vacuum pickup system 150′ may also be arranged to pick up nests 600 of container closures 610 by means of suction cups 152a′ and 152b′. As with vacuum pickup system 150, vacuum pickup system 150′ may be raised and lowered in order to allow suction cups 152a′ and 152b′ to engage with different nests 600 of container closures 610 contained at differing depths inside tub 630.
Suction cups 152a′ and 152b′ are arranged on rotary arms 154a′ and 154b′ as pluralities of sets of linearly arranged suction cups 152a′ and 152b′, each set of linearly arranged suction cups 152a′ and 152b′ being arranged at a different angle perpendicular to the longitudinal axes of rotary arms 154a′ and 154b′. This arrangement allows rotary arms 154a′ and 154b′ to be rotated about their longitudinal axes in order to orient different sets of linearly arranged suction cups 152a′ and 152b′ to engage with different nests 500 of containers 510. This allows the sets of suction cups 152a′ and 152b′ to be individually selectable for use. Rotation of rotary arms 154a′ and 154b′ may be performed manually. In other embodiments, rotation of rotary arms 154a′ and 154b′ may be by means of a suitable motorized drive incorporated in vacuum pickup system 150′ and controlled by controller 400 shown in
By selecting different sets of linearly arranged suction cups 152a′ and 152b′ via the rotation of rotary arms 154a′ and 154b′, the sets of suction cups 152a′ and 152b′ may be disposed to engage with different container nests 500 bearing containers 510, or container closure nests 600 bearing container closures 610.
Turning now to
Restraining member 139 is configured to push against a distal end of container 530. While different means are contemplated to ensure the pushing action of restraining member 139, one particular suitable means is by providing restraining member 139 with suitable spring loading to rotate about axis 143. By the above operation, reconfigurable stopping member 149 and restraining member 139 together allow container 530 to be positioned at an exact location parallel to the longitudinal axes of rotary arms 154a′ and 154b′. The particular exact location is selectable by selecting the appropriate end of reconfigurable stopping member 149 to stop container 530. This arrangement allows containers 530 of different dimensions parallel to the longitudinal axes of rotary arms 154a′ and 154b′ to be located at exact predetermined locations with respect to sets of suction cups 152a′ and 152b′.
A particular set of suction cups 152a′ and 152b′ may be selected to match the selection of the particular end of reconfigurable stopping member 149. In this way, vacuum pickup system 150′ may be set to a configuration that ensures that a selected size of container 530 is precisely positioned to allow container nests 500 within container 530 to be engaged by specific sets of suction cups 152a′ and 152b′. Vacuum pickup system 150′ is thereby reconfigurable to engage with nests of different sizes within containers of different sizes.
In the interest of clarity, the description above, as well as
In another embodiment, a further reconfigurable stopping member and restraining member may be added to the arrangement of
In the embodiments described above, reconfigurable stopping member 149 has been described as having two ends of which one is selected for use at any one time by rotating reconfigurable stopping member 149 about stopping member rotation axis 141. In other embodiments, reconfigurable stopping member 149 may be shaped or configured to have more than two stopping ends, the ends being selectable by suitable rotation of reconfigurable stopping member 149 about stopping member rotation axis 141. In one embodiment, in which the reconfigurable stopping member has a very large number of stopping ends, the reconfigurable stopping member may assume the shape of a cam, representing a large plurality of possible stopping ends that may be selected via rotation of the reconfigurable stopping member about a suitable stopping member rotation axis.
In general, the system described at the hand of
The various embodiments contemplated all comprise a reconfigurable vacuum pickup system that may be configured to engage its suction cups with corresponding areas on a pharmaceutical container nest. The containers in the container nest may be closed by corresponding container closures suspended in a container closure nest. The planar surface of the container closure nest may have an outline that leaves pass-throughs on its perimeter for the suction cups to pass through to engage with the container nest. By way of example, in
In a general embodiment, a nest handling subsystem comprises a reconfigurable vacuum pickup system for picking up container nests and/or container closure nests may comprise one or more arms bearing a plurality of sets of suction cups. By reconfiguration of the vacuum pickup system a set of suction cups may be selected from among the plurality of sets of suction cups, the selected set of suction cups being pre-arranged to engage with a particular container nest or container closure nest. The selection may be on the basis of one or both of the size and the shape of the nest. The nest handling system may further comprise at least one pair of a reconfigurable stopping member 149 and a restraining member 139 disposed proximate opposing ends of a fiducial locating opening 132 for holding a tub 530 containing container nests 500 bearing containers 510 in order to engage with opposing ends of the tub 530. The stopping and restraining members are disposed to position tub 530 in a predetermined position that ensures that the selected set of suction cups can engage with the container nests and/or container closure nests.
As is the case with opening 132, opening 134 of
The various embodiments above have been described in terms of
The method described above at the hand of
The providing a filling apparatus step [2010] may comprise providing a rotary stage 130 with a destination fiducial locating opening 136 and at least two source fiducial locating openings 132, 134, each source fiducial opening having at least one pair of a reconfigurable stopping member 149 and a restraining member 139.
The transferring step [2020] may comprise operating at least a first reconfigurable stopping member 149 to stop the container tub 530 at a predetermined container tub position and operating at least a first restraining member 139 to restrain the container tub 530 at the predetermined container tub position.
The transferring step [2025] may comprise operating at least a second reconfigurable stopping member 145 to stop the container closure tub 630 at a predetermined closure tub position and operating at least a second restraining member 135 to restrain the container tub 630 at the predetermined closure tub position.
The step of operating [2050] the at least one vacuum pickup system 150′, 160′ may comprise configuring the at least one reconfigurable vacuum pickup system 150′, 160′ to select a first predetermined set of suction cups disposed to engage with the container nest 500.
The operating [2070] of one of the at least one vacuum pickup system 150′, 160′ may comprise configuring the at least one reconfigurable vacuum pickup system 150′, 160′ to select a second predetermined set of suction cups disposed for engaging with the container closure nest 600.
The method may further comprise operating [2095] the at least one vacuum pickup system 150′, 160′ with the first predetermined set of suction cups selected to engage with the container nest 500 and jointly remove the container nest 500 and container closure nest 600 from the ramming system 180.
We have considered in
Typical industrial container nests are not manufactured to a dimensional standard, and, as a result, any system for filling and closing nested containers 510 has to have a means to accurately position differently sized nests 500 bearing the containers 510. To this end, rotary positioning elements 164a and 164b may have different sets of paired positioning surfaces 167a,167b and 163a,163b allowing nests 500 of specific dimensions to be accurately fitted between such paired positioning surfaces. In
As is evident from
Another arrangement as shown in
Another embodiment of rotary positioning elements is shown in
While elements 164a′ and 164b′ may be designed to be of more complex shape, we show in
Ganged elements 164a′ and 164b′ may be rotated manually about the axes of axles 166a′ and 166b′ respectively inside bosses 169a′ and 169b′ respectively. In some embodiments, the rotation of elements 164a′ and 164b′ may be done automatically by means of motorized drives controlled by controller 400 and suitable control software. That control may be based on predetermined dimensional data relating to the nest being positioned between the surfaces of elements 164a′ and 164b′. It may also be based on input data derived from imaging data obtained from cameras 210 and/or 220. Further, the rotation may take place as the nest 500 is lowered into position so that the particular surfaces of elements 164a′ and 164b′ destined to engage with the opposing ends of the nest 500 along the first dimension may serve as closing horizontal grip on nest 500 as the surfaces rotate toward the position in which they face each other.
In a further aspect, described at the hand of
The providing [6010] a filling system 1000 may comprise providing a filing apparatus comprising at least one cover removal station 140 within the chamber 100 and wherein the transferring into the destination locating structure the container tub 530 comprises removing the container tub cover 520 from the container tub 530 by operating both the rotary stage 130 and the at least one cover removal station 140. The operating the at least one cover removal station 140 may comprise rotating the at least one cover removal station 140. The providing [6010] the filling system 1000 may comprise providing within the chamber 100 at least one cover removal station 140 having an engagement tool 142, the transferring [6020] into the chamber 100 at least one container tub 530 may comprise attaching to the container tub 520 cover a cover removal fixture 540; and wherein the operating the at least one cover removal station 140 comprises engaging the engagement tool 142 with the cover removal fixture 540.
The method may further comprise transferring [6030] into the chamber a container closure tub 630 sealed by a container closure tub cover and containing at least one container closure nest 600 bearing a plurality of pharmaceutical container closures 610. The method may further comprise positioning [6080] one of the at least one closure nests 600 to align closures 610 in the at least one closure nest 600 with corresponding containers 530 in the container nest 500; transferring [6090] the nests 500,600 of aligned closures 610 and containers 510 to a ramming station by rotating the rotary stage 130; and forcing [6100] the closures 610 into the corresponding containers 510. The method may further include adjusting a tub locating structure 135,145 to accommodate a size of the closure nest tub 630. The positioning [6080] one of the at least one closure nest 600 may comprise: obtaining image information about the one of the at least one closure nests 600; and positioning the one of the at least one closure nests 600 based on the image information. The positioning [6080] one of the at least one closure nest 600 may comprise: applying a vacuum to suction cups 162, 152a, 152b, 152a′, 152b′; lifting the container closure nest 600 with the suction cups; and operating the rotary stage 130.
The transferring [6020] into the destination locating opening the container nest 500 may comprise: applying a vacuum to the suction cups; lifting the container nest 500 with the suction cups; and operating the rotary stage 130. The method may further include selecting one of a plurality of sets of suction cups and wherein the applying a vacuum to suction cups is performed for the selected set of suction cups. The selecting may include rotating one of the plurality of sets of suction cups into position. The method may further include the destination locating structure 136, 164a, 164b, 164a′, 164b′ to accommodate a size of the container nest 500. The adjusting may be performed in two at least generally orthogonal directions. The method may further include adjusting a tub locating structure 139,149 to accommodate a size of the container nest tub 530.
In a further aspect, a method is provided (see
The providing may include providing sterilized pharmaceutical containers 510 or closures 610 in the sealed container, for example tub 530 or 630, before the decontaminating. The attaching may take place before the container is in the controlled environment enclosure 100. The decontaminating the sealed container in the controlled environment enclosure 100 may take place before the removing the cover 520. The removing the cover 520 may include moving the engagement tool 142 relative to the container 530. The removing the cover 520 may include moving both the container 530 and the engagement tool 142. The method may further comprise attaching the cover removal fixture 540 to the cover 520 before providing the container 530 in the controlled environment enclosure.
While this invention has been described as having an exemplary design, the present invention may be further modified within the spirit and scope of this disclosure. This application is therefore intended to cover any variations, uses, or adaptations of the invention using its general principles. Further, this application is intended to cover such departures from the present disclosure as come within known or customary practice in the art to which this invention pertains.
This application is a continuation-in-part of U.S. application Ser. No. 15/264,554, filed Sep. 13, 2016, which is herein incorporated by reference.
| Number | Date | Country | |
|---|---|---|---|
| Parent | 15264554 | Sep 2016 | US |
| Child | 15465516 | US |
