The present disclosure relates to devices used in surgery and, more particularly, to flow paths through surgical devices.
Certain surgical devices, such as shavers, typically employ suction to remove fluid, tissue and other debris from a surgical site. Suction may also be employed to draw tissue into a surgical device such for cutting. The fluid, tissue and debris sucked into the surgical device travels through a channel and out of the surgical device for disposal. Sometimes the tissue and debris adhere to the side of the channel and, if enough tissue and debris builds up in the channel, then proper functioning of the device may be compromised.
Therefore, there exists a need for a system and method of improving fluid, tissue and debris flow through surgical devices that remedies the shortcomings of the prior art.
The present disclosure is directed to a surgical device with a divertors or rifling along at least a portion of a suction pathway to improve fluid, tissue and debris flow.
In an implementation, a surgical device has a body with a proximal end and a distal end. A hollow cannula extends from the distal end of the body, the cannula having a proximal end and a distal end. An operative head may be positioned at the distal end of the cannula. A suction connector is in fluid communication with the hollow cannula, the suction connector being configured for connection to a suction source. The hollow cannula has at least one of the group consisting of diverters and rifling on at least a portion of an inside surface.
The operative head may have a radio frequency ablator. The operative head may have diverters on at least a portion of an inside surface. The operative head may have rifling on at least a portion of an inside surface. In an implementation, the body has a suction bore extending from the suction connector to a position near the hollow cannula, the suction bore being in fluid communication with the suction connector and the hollow cannula; and wherein the suction bore further comprises diverters along at least a portion of an inside surface. In an implementation, the body has a suction bore extending from the suction connector to a position near the hollow cannula, the suction bore being in fluid communication with the suction connector and the hollow cannula; and wherein the suction bore further comprises rifling along at least a portion of an inside surface.
In an implementation, the hollow cannula may have diverters on at least a portion of an inside surface and the diverters may have a round profile. The diverters may be straight, curved, or in a helical pattern. The diverters may also be in a double helix pattern. In an implementation, the hollow cannula has rifling on at least a portion of an inside surface. The rifling may be in a curved or a helical pattern. The rifling may also be in a double helix pattern.
In an implementation, a surgical device has a body with a proximal end and a distal end. A suction connector is coupled to the body, the suction connector being configured for connection to a suction source. A hollow cannula extends from the distal end of the body, the cannula having a proximal end and a distal end. An inner shaft is rotatably positioned within the hollow cannula, the inner shaft having a proximal end, a distal end, and a channel. An inner drive hub is coupled to the proximal end of the inner shaft, the inner drive hub being rotatably coupled to the body and in fluid communication with the suction connector. The channel has at least one of the group consisting of diverters and rifling on at least a portion of an inside surface.
In an implementation, a suction bore extends from the suction connector to a position near the inner hub, the suction bore being in fluid communication with the suction connector and the channel of the inner shaft. The suction bore may have diverters along at least a portion of an inside surface. The suction bore may also have rifling along at least a portion of an inside surface.
In an implementation, the channel may have diverters on at least a portion of an inside surface and the diverters may have a round profile. The diverters may be in a helical pattern. The diverters may be in a double helix pattern. In an implementation, the channel may have rifling on at least a portion of an inside surface and the rifling may be in a helical pattern. The rifling may also be in a double helix pattern.
In an implementation, a cutting head may be positioned at the distal end of the hollow cannula; and a blade may be positioned at the distal end of the inner shaft. As the inner shaft is rotated relative to the cannula, the blade cooperates with the cutting head to cut tissue in contact with the cutting head. The surgical device may be selected from the group consisting of: shavers, drills, burrs and rasps.
These and other features are described below.
The features, aspects and advantages of the present disclosure will become better understood with regard to the following description, appended claims and accompanying figures wherein:
In the following description of the preferred implementations, reference is made to the accompanying drawings which show by way of illustration specific implementations in which the device may be practiced. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts. It is to be understood that other implementations may be utilized and structural and functional changes may be made without departing from the scope of this disclosure.
With reference to
In an implementation, a power supply cable 28 may be coupled to the proximal end 14 of the body 12. In an additional implementation, the surgical device 10 is battery powered and there may be no need for a power supply cable. A suction connector 30 may be located on the proximal end 14 of the body 12. The suction connector 30 is in fluid communication with a suction source (not shown). The suction connector 30 is in fluid communication with a suction bore 32. The suction bore 32 extends from the suction connector to an area near the proximal end 20 of the cannula 18. The suction bore 32 is in fluid communication with the channel 24. The suction source is therefore in fluid communication with the suction connector 30, the suction bore 32 and the channel 24. Suction may be used to extract material from a surgical field through the operative head 26, through the channel 24 of the hollow cannula 18, through the suction bore 32 and out through the suction connector 30.
The operative head 26 may be configured as a cutting device such as, for example and without limitation, a mechanical cutter or a radio frequency ablation device. Additionally, the operative head 26 may be configured as a shaver. Additionally, the surgical device may be a simple suction device and the operative head may contain an opening for material to pass through. The body 12 may have an actuator 36 for triggering an action by the operative head 26. Additionally, the body 12 may have a display 38 for displaying at least one condition of the device 10.
In an implementation, divertors 40 are placed on an inner surface where fluid, tissue or debris are evacuated through the surgical device 10. As used herein, the term “divertors” refers to protrusions extending from a surface 42. As shown in, for example,
As shown in
In an implementation, the divertors 40 are placed inside the channel 24, such as and without limitation in an area proximal to the distal end 22 of the cannula 18. As shown in
As fluid, tissue and debris contact the divertors 40, rotation may be induced. The rotation may help to further break up tissue and debris to prevent clumping and blockages. The divertors 40 direct fluid, tissue and debris within a fluid path to prevent fluid, tissue or debris from adhering to the surface 42 of the fluid path. The size and configuration of the divertors 40 may change along the length of the fluid path. The divertors 40 may be machined into the fluid path. Additionally, the divertors 40 may be molded into the fluid path, such as when the fluid path is formed of metal, plastic or ceramic. Additionally, the divertors 40 may be on an insert that is placed in the fluid path.
In an implementation, rifling 50 is placed on an inner surface where fluid, tissue or debris are evacuated through the surgical device 10. As used herein, the term “rifling” refers to grooves in the surface 42. In an implementation, as shown in for example in
In an implementation, the rifling 50 is placed inside the channel 24, such as and without limitation in an area proximal to the distal end 22 of the cannula 18. As shown in
The rifling 50 may be machined into the fluid path. Additionally, the rifling 50 may be molded into the fluid path, such as when the fluid path is formed of metal, plastic or ceramic. Additionally, the rifling 50 may be on an insert that is placed in the fluid path. In an implementation, as shown in
In an implementation, the surgical device 10 has both divertors 40 and rifling 50. Additionally, the divertors 40 or rifling 50 may be coated, such as with hydrophobic coatings. The coatings may be made using physical vapor deposition (PVD).
A surgical device 100 according to an additional implementation, namely a surgical shaver, is shown in
A power supply cable 128 may be coupled to the proximal end 104 of the body 102. A suction connector 130 may be located on the proximal end 104 of the body 102. The suction connector 130 is in fluid communication with a suction source (not shown). The suction connector 130 is in fluid communication with a suction bore 132. The suction bore 132 extends from the suction connector to an area near the inner hub 120. The suction bore 132 is in fluid communication with the inner hub 120 and the proximal end 118 of the inner shaft 116. The suction source is therefore in fluid communication with the suction connector 130, the suction bore 132 and the channel 126. Suction is used to extract material from a surgical field through the cutting head 114, through the channel 126, through the suction bore 132 and out through the suction connector 130.
In an implementation, divertors 134 are placed inside the channel 126, such as and without limitation in an area proximal to the distal end 122 of the inner shaft 116. Divertors 134 may also be paced on an inner surface of the suction bore 132, such as and without limitation proximal to the inner hub 120. Instead of, or in addition to, divertors 134, rifling may be placed inside the channel 126, such as and without limitation in an area proximal to the distal end 122 of the inner shaft 116. Additionally, rifling ma also be placed on an inner surface of the suction bore 132, such as and without limitation proximal to the inner hub 120.
There is disclosed in the above description and the drawings, a surgical device system that fully and effectively overcomes the disadvantages associated with the prior art. However, it will be apparent that variations and modifications of the disclosed implementations may be made without departing from the principles described herein. The presentation of the implementations herein is offered by way of example only and not limitation.
Any element in a claim that does not explicitly state “means” for performing a specified function or “step” for performing a specified function, should not be interpreted as a “means” or “step” clause as specified in 35 U.S.C. § 112.
This application claims priority of U.S. Provisional Patent Application No. 63/273,462, filed on Oct. 29, 2021, entitled SURGICAL DEVICE SYSTEM, the entire contents of which is hereby incorporated herein by reference.
Number | Date | Country | |
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63273462 | Oct 2021 | US |