Surgical grasping device

• US 8,409,200 B2
• Filed: 09/03/2008
• Issued: 04/02/2013
• Est. Priority Date: 09/03/2008
• Status: Active Grant

• Current Assignee: Ethicon Endo-Surgery, Inc. (Johnson & Johnson)
• Original Assignee: Ethicon Endo-Surgery, Inc. (Johnson & Johnson)
• Inventors: Holcomb, Matthew D., Spivey, James T., Vakharia, Omar J., Johnson, Frederick Q., Mantri, Surag S., Nguyen, Hoang V., Woodard, Steven P.
• Primary Examiner(s): Lucchesi, Nicholas
• Assistant Examiner(s): Zhang, Jenna
• Application Number:
  US12/203,330
• Publication Number:
  US 20100057085A1
• Time in Patent Office: 1,672 Days
• Field of Search: 606/61, 606 41- 52
• US Class Current: 606/51
• CPC Class Codes: A61B 18/1445 at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod
• CPC Class Codes: A61B 18/1492 having a flexible, catheter-like structure, e.g. for heart ablation A61B18/1477 takes precedence
• CPC Class Codes: A61B 2017/2934 arcuate shaped guiding means
• CPC Class Codes: A61B 2017/2936 Pins in guiding slots
• CPC Class Codes: A61B 2017/2939 Details of linkages or pivot points
• CPC Class Codes: A61B 2017/2944 Translation of jaw members

Abstract

A surgical device comprising a clevis defining a longitudinal axis and a jaw comprising a first member and a second member. A slider is slidably engaged to the clevis, the slider comprising a pin. The pin is receiveably engaged in the first slot and the jaw is selectively moveable between a first position and a second position through longitudinal movement of the slider. In various embodiments, the first and second members are movable between an angular open position, a parallel open position, and a parallel closed position.

Claims

1. A surgical device comprising:

a clevis defining a longitudinal axis, wherein the clevis comprises a first prong and a second prong;

a jaw comprising a first member and a second member, wherein the first member comprises a first slot, a third slot, and a first member pin, wherein the second member comprises a second slot, a fourth slot, and a second member pin, wherein the first member pin is receivably engaged in the second slot, and wherein the second member pin is receivably engaged in the first slot; and

a slider slidably engaged to the clevis, the slider comprising;

a first channel on a first lateral side of the clevis;

a second channel on a second lateral side of the clevis, wherein the first channel is configured to receive a portion of the first prong of the clevis and the second channel is configured to receive a portion of the second prong of the clevis, and wherein the first and second prongs of the clevis guide longitudinal movement of the slider therebetween; and

a plurality of slider pins, wherein each slider pin of the plurality of slider pins is receiveably engaged in one of the third slot and the fourth slot, wherein the jaw is selectively moveable between a first position and a second position through longitudinal movement of the slider, and wherein the surgical device is dimensioned to be inserted through a working channel of an endoscope.

2. The surgical device of claim 1, wherein the jaw comprises a cutting element.

3. The surgical device of claim 1, wherein the first fourth slot and the third slot are linear.

4. The surgical device of claim 1, wherein the first slot and the second slot are non-linear.

5. The surgical device of claim 1, wherein a driveline is coupled to the slider.

6. The surgical device of claim 5, comprising:

a handle portion to receive a proximal end of the driveline;

a trigger operatively coupled to the driveline;

wherein the trigger is pivotally moveable in a first rotational direction to move the driveline in the first direction to open the jaw; and

wherein the trigger is pivotally moved in a second rotational direction to move the driveline in the second direction to close the jaw.

7. A surgical device comprising:

a clevis defining a longitudinal axis, wherein the clevis comprises a first clevis side and a second clevis side;

a jaw comprising a first member and a second member, the first member defining a first slot and a third slot and the second member defining a second slot and a fourth slot; and

a slider slidably engaged to the clevis, the slider comprising;

a first channel on a first lateral side of the slider, wherein the first channel is configured to receive the first clevis side;

a second channel on a second lateral side of the slider, wherein the second channel is configured to receive the second clevis side, and wherein the first and second clevis sides guide longitudinal movement of the slider therebetween;

a first pin; and

a second pin, wherein the first pin is receiveably engaged in the third slot, wherein the second pin is receivably engaged in the fourth slot, and wherein the jaw is selectively moveable between a first position and a second position through longitudinal movement of the slider, wherein the surgical device is dimensioned to be inserted through a working channel of an endoscope.

8. The surgical device of claim 7, comprising:

a driveline coupled to the slider;

a handle portion to receive a proximal end of the driveline;

a trigger operatively coupled to the driveline; and

wherein the trigger is pivotally moveable in a first rotational direction to move the driveline in the first direction to open the jaw; and

is pivotally moved in a second rotational direction to move the driveline in the second direction to close the jaw.

9. The surgical device of claim 8, wherein the slider is moved in a direction toward the distal end of the surgical device to open the jaw and the slider is moved in a direction toward the proximal end of the surgical device to close the jaw.

10. The surgical device of claim 9, wherein the first slot is non-linear.

11. The surgical device of claim 10, wherein the second slot is non-linear.

12. A surgical device comprising:

a clevis defining a longitudinal axis, wherein the clevis comprises a first pronged portion and a second pronged portion;

a jaw comprising a first member and a second member, wherein the first member comprises a first slot and a third slot, and wherein the second member comprises a second slot and a fourth slot;

a slider slidably engaged to the clevis, the slider comprising;

a first channel and a second channel, wherein the first channel is positioned on a first lateral side of the clevis and is configured to receive the first pronged portion, wherein the second channel is positioned on a second lateral side of the clevis and is configured to receive the second pronged portion, and wherein the first and second pronged portions of the clevis guide longitudinal movement of the slider therebetween; and

a first pin and a second pin, wherein the third slot of the first member receives the first pin, and wherein the fourth slot of the second member receives the second pin;

a driveline coupled to the slider, wherein the jaw is selectively moveable between a first position and a second position through longitudinal movement of the driveline;

a handle portion to receive a proximal end of the driveline;

a trigger operatively coupled to the driveline;

wherein the trigger is pivotally moveable in a first rotational direction to move the driveline in the first direction to open the jaw; and

wherein the trigger is pivotally moved in a second rotational direction to move the driveline in the second direction to close the jaw.

13. The surgical device of claim 12, wherein first and second electrode portions are coupled to the first member and a second member, and wherein the first and second electrode portions are adapted to receive an electrical waveform.

14. The surgical device of claim 13, wherein an electrical waveform generator is coupled to the first and second electrode portions and the first and second electrode portions are adapted to receive an electrical waveform.

15. The surgical device of claim 14, wherein the first slot is non-linear.

16. The surgical device of claim 15, wherein the second slot is non-linear.

17. A surgical instrument comprising:

a housing, the housing dimensioned to be inserted through a working channel of an endoscope, wherein the housing comprises a longitudinal axis, a first slot, a second slot, a third slot, and a fourth slot, wherein the first, second, third, and fourth slots are elongate in the direction of the longitudinal axis, and a portion of the first slot is parallel to a portion of the second slot and wherein a portion of the third slot is parallel to a portion of the fourth slot; and

a jaw comprising a first member, a second member, and an electrode, the jaw pivotally connected to the housing, wherein the first jaw comprises a first pivot pin and a second pivot pin and wherein the second jaw comprises a third pivot pin and fourth pivot pin, wherein the first pin is received by the first slot, the second pin is received by the second slot, the third pin is received by the third slot, and the fourth pin is received by the fourth slot,

wherein the jaw is selectively movable between a first position, a second position, and a third position, wherein the first member and second member are substantially parallel in the first position and substantially parallel in the second position, and wherein the first member and second member are configured in an angular relation in the third position.

18. The surgical instrument of claim 17, further comprising an actuator, wherein the first member and the second member are operably engaged with the actuator such that, when the actuator is moved relative to the housing, the first jaw member and the second jaw member are moved between the first, second, and third positions.

19. The surgical instrument of claim 18, wherein the jaw further comprises a second electrode.

20. The surgical instrument of claim 19, further comprising a switch, wherein the switch is selectively operable to place at least one of the first electrode and the second electrode in electrical communication with an electric current source.

21. The surgical instrument of claim 20, wherein the first slot has a curved portion and the third slot has a curved portion.

22. The surgical instrument of claim 21, wherein the first jaw and the second jaw are in the third position when the first pin is located in the curved portion of the first slot and the third pin is in the curved portion of the third slot.

23. The surgical instrument of claim 17, wherein the first position is a closed position, and wherein the third position is an open position.

24. A surgical instrument, comprising:

a hand piece;

a shaft;

a housing dimensioned to be inserted through a working channel of an endoscope wherein the housing comprises a longitudinal axis, a first slot, a second slot, a third slot, and a fourth slot, wherein the first, second, third, and fourth slots are elongate in the direction of the longitudinal axis; and

a grasping device pivotally connected to the housing, comprising;

a first jaw including a first electrode, a first pin, and a second pin, wherein the first slot receives the first pin and the second slot receives the second pin;

a second jaw including a second electrode, a third pin, and a fourth pin, wherein the third slot receives the third pin and the fourth slot receives the fourth pin, wherein the second jaw is selectively movable between an angular open position, a parallel open position, and a parallel closed position.

25. The surgical instrument of claim 24, further comprising an actuator, wherein the first jaw member and the second jaw member are operably engaged with the actuator such that, when the actuator is moved relative to the shaft, the first jaw member and the second jaw member are pivoted between the angular open position, the parallel open position, and the parallel closed position.

26. The surgical instrument of claim 25, wherein the shaft is a flexible shaft.