Surgical device having a rotatable jaw portion

• US 8,353,440 B2
• Filed: 06/17/2011
• Issued: 01/15/2013
• Est. Priority Date: 09/21/2007
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Whitman, Michael P., Malinouskas, Donald, Datcuk, Peter, Nicholas, David
• Primary Examiner(s): Nash, Brian D
• Application Number:
  US13/162,811
• Publication Number:
  US 20110240714A1
• Time in Patent Office: 578 Days
• Field of Search: 227/180.1, 227/19, 227/1, 227/75.1, 606/170, 606/208
• US Class Current: 227/180.1
• CPC Class Codes: A61B 17/068 Surgical staplers , e.g. containing multiple staples or clampsstaplers containing only one staple A61B17/10; magazines or containers for staples A61B17/105; for performing anastomosis A61B17/115; staplers in general B25C5/00
• CPC Class Codes: A61B 17/07207 the staples being applied sequentially
• CPC Class Codes: A61B 2017/00398 using powered actuators, e.g. stepper motors, solenoids
• CPC Class Codes: A61B 2017/00734 battery operated
• CPC Class Codes: A61B 2017/07278 characterised by its sled or its staple holder
• CPC Class Codes: A61B 2017/07285 characterised by its cutter
• CPC Class Codes: A61B 2017/2927 the angular position of the head being adjustable with respect to the shaft
• CPC Class Codes: A61B 2017/2929 with a head rotatable about the longitudinal axis of the shaft
• CPC Class Codes: A61B 2017/2943 Toothed members, e.g. rack and pinion
• CPC Class Codes: A61B 2017/320052 Guides for cutting instruments by marking A61B2090/395

Abstract

A surgical device is provided that includes a jaw portion, having a first jaw in opposed correspondence with a second jaw, the second jaw including a surgical member. The surgical device may include a shaft portion coupled to a proximal end of the jaw portion and at least one motor configured to rotate the jaw portion relative to the shaft portion, to move the jaw portion relative to the shaft portion, move the first jaw relative to the second jaw and move the surgical member within the second jaw. The surgical member may be prevented from moving within the second jaw unless the first jaw is in a closed position relative to the second jaw. Advantageously, the surgical member may be, e.g., a cutting element and/or a stapling element, disposed within one of the jaws.

Claims

1. A surgical device, comprising:

a first jaw in opposed correspondence to a second jaw, the first and second jaws pivotably connected to each other;

a first driver configured to be coupled to a first rotatable drive shaft;

a second driver configured to be coupled to a second rotatable drive shaft;

a horizontal driver element having a proximal end and a distal end, the proximal end configured to be engaged to the first rotatable drive shaft of the first driver and the distal end configured to include an opening;

a first rotatable clamp element having a first end, a second end, and a third end, the first end pivotably connected to the opening of the horizontal driver element, wherein the third end of the first rotatable clamp element is pivotably connected to the first jaw; and

a second rotatable clamp element, the second end of the first rotatable clamp element being pivotably connected to a proximal end of the second rotatable clamp element, wherein a distal end of the second rotatable clamp element is pivotably connected to the second jaw;

wherein rotation of the first rotatable drive element causes the horizontal driver element to move parallel to the second jaw, which in turn causes rotation of the first rotatable clamp element;

wherein the rotation of the first rotatable clamp element causes a downward movement of the second rotatable clamp element; and

wherein the downward movement of the second rotatable clamp element causes the first jaw to rotate relative to the second jaw into a closed position.

2. The surgical device according to claim 1, wherein the first driver extends through a shaft to a first drive socket connected to a first motor that functions to open and close the first jaw relative to the second jaw.

3. The surgical device according to claim 2, wherein the second driver extends through the shaft to a second drive socket connected to a second motor that functions to actuate a cutting and stapling element disposed within the second jaw.

4. The surgical device according to claim 1, wherein the first and second rotatable drive shafts meshingly engage first and second gear trains, respectively.

5. The surgical device according to claim 4, wherein the first gear train has a first gear element arrangement and the second gear train has a second gear element arrangement.

6. The surgical device according to claim 4, wherein the first gear train includes:

a first gear element supported on a distal end of the first rotatable drive shaft;

a coupler gear meshingly engaged with the first gear element of the first gear train; and

a second gear element rotatably supported in the second jaw and meshingly engaged with the coupler gear.

7. The surgical device according to claim 4, wherein the second gear train includes:

a first gear element supported on a distal end of the second rotatable drive shaft;

a coupler gear meshingly engaged with the second gear element of the second gear train; and

a second gear element rotatably supported in the second jaw and meshingly engaged with the coupler gear.

8. The surgical device according to claim 1, wherein the second jaw includes a knife member.

9. The surgical device according to claim 8, wherein the knife member is movable within the knife jaw, such that the surgical member is prevented from moving within the second jaw unless the first jaw is in a closed position relative to the second jaw.

10. The surgical device according to claim 8, wherein when the first jaw is an open position relative to the second jaw, the first and second jaws are rotatable relative to one of the first rotatable drive shaft and the second rotatable drive shaft.

11. A surgical device, comprising:

a first jaw;

a second jaw in opposed correspondence to the first jaw, the second jaw including a knife member;

an elongate shaft pivotably coupled to the first and second jaws, the elongate shaft defining a longitudinal axis therethrough;

a first driver configured to be coupled to a first rotatable drive shaft;

a second driver configured to be coupled to a second rotatable drive shaft;

a first gear train having a first gear element arrangement; and

a second gear train having a second gear element arrangement;

wherein the first and second gear trains meshingly engage the first and second rotatable drive shafts, respectively, such that the first and second gear trains enable rotation the first and second jaws relative to the longitudinal axis defined by the shaft; and

wherein the knife member is movable within the second jaw, and wherein the knife member is prevented from moving within the second jaw unless the first jaw is in a closed position relative to the second jaw.

12. The surgical device according to claim 11, wherein when the first jaw is an open position relative to the second jaw, the first and second jaws are rotatable relative to the elongate shaft.

13. The surgical device according to claim 11, wherein the first gear train includes:

a first gear element supported on a distal end of the first rotatable drive shaft;

a coupler gear meshingly engaged with the first gear element of the first gear train; and

a second gear element rotatably supported in the second jaw and meshingly engaged with the coupler gear.

14. The surgical device according to claim 11, wherein the second gear train includes:

a first gear element supported on a distal end of the second rotatable drive shaft;

a coupler gear meshingly engaged with the second gear element of the second gear train; and

a second gear element rotatably supported in the second jaw and meshingly engaged with the coupler gear.

15. The surgical device according to claim 11, wherein the first gear train engages a plurality of first gears selectively engageable with a plate, a push block, and a threaded screw, such that the threaded screw is longitudinally arranged and configured to rotate about the longitudinal axis defined by the elongate shaft when the plurality of first gears are actuated.

16. The surgical device according to claim 15, wherein the second gear train engages a plurality of second gears selectively engageable with a longitudinal rod and a wedge driver, the longitudinal rod having a spring mechanism and positioned parallel to the threaded screw.

17. The surgical device according to claim 16, wherein the wedge driver is configured to rotate so as to drive a stapling/cutting wedge along a staple cartridge positioned within the second jaw.

18. The surgical device according to claim 11, further comprising a cam block moveable between a proximal position and a distal position, wherein the cam block includes a surface, wherein the cam block is moved between its proximal and distal positions by engagement of the surface thereof with a surface of one of the first and second jaws when the first and second jaws are moved relative to each other.

19. The surgical device according to claim 11, wherein the first and second element gear arrangements include an idler gear that is selectively engageable based upon a position of the first jaw relative to the second jaw.

20. A surgical device, comprising:

a first jaw;

a second jaw in opposed correspondence to the first jaw;

an elongate shaft pivotably coupled to the first and second jaws, the elongate shaft defining a longitudinal axis therethrough;

a first driver configured to be coupled to a first rotatable drive shaft;

a second driver configured to be coupled to a second rotatable drive shaft;

a first gear train having a first gear element arrangement; and

a second gear train having a second gear element arrangement;

wherein the second jaw includes a wedge member and a wedge driver; and

wherein the first gear train engages a plurality of first gears selectively engageable with a plate, a push block, and a threaded screw, such that the threaded screw is longitudinally arranged and configured to rotate about the longitudinal axis defined by the shaft when the plurality of first gears are actuated.

21. The surgical device according to claim 20, wherein the first and second gear trains meshingly engage the first and second rotatable drive shafts, respectively, such that the first and second gear trains enable rotation the first and second jaws relative to the longitudinal axis defined by the elongate shaft.

22. The surgical device according to claim 20, wherein the wedge member is slidably supported within the second jaw and the wedge driver is rotatably supported within the second jaw, the wedge driver being threadably connected to the wedge member, wherein rotation of the wedge driver results in axial translation of the wedge member.

23. The surgical device according to claim 20, wherein the first gear train includes:

a first gear element supported on a distal end of the first rotatable drive shaft;

a coupler gear meshingly engaged with the first gear element of the first gear train; and

a second gear element rotatably supported in the second jaw and meshingly engaged with the coupler gear.

24. The surgical device according to claim 20, wherein the second gear train includes:

a first gear element supported on a distal end of the second rotatable drive shaft;

a coupler gear meshingly engaged with the second gear element of the second gear train; and

a second gear element rotatably supported in the second jaw and meshingly engaged with the coupler gear.

25. The surgical device according to claim 20, wherein the second gear train engages a plurality of second gears selectively engageable with a longitudinal rod and a wedge driver, the longitudinal rod having a spring mechanism and positioned parallel to the threaded screw.

26. The surgical device according to claim 20, wherein the wedge member is prevented from moving within the second jaw unless the first jaw is in a closed position relative to the second jaw.

27. The surgical device according to claim 20, wherein when the first jaw is in an open position relative to the second jaw, the first and second jaws are rotatable relative to the elongate shaft.

28. The surgical device according to claim 20, further comprising a cam block moveable between a proximal position and a distal position, wherein the cam block is moved between its proximal and distal positions by engagement of the surface thereof with a surface of one of the first and second jaws when the first and second jaws are moved relative to each other.

29. The surgical device according to claim 20, further comprising an idler gear that is selectively engageable based upon a position of the first jaw relative to the second jaw.