Surgical device

• US 8,021,373 B2
• Filed: 03/30/2010
• Issued: 09/20/2011
• Est. Priority Date: 11/30/2001
• Status: Expired due to Fees

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: Whitman, Michael P., Burbank, John E.
• Primary Examiner(s): Severson; Ryan
• Application Number:
  US12/749,573
• Publication Number:
  US 20100249816A1
• Time in Patent Office: 539 Days
• Field of Search: 227/175.1, 227/180.1, 606/143, 606/205, 606/207
• US Class Current: 606/139
• 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 17/3201 Scissors for biopsy A61B10/02
• 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 2017/07214 Stapler heads
• CPC Class Codes: A61B 2017/07285 characterised by its cutter
• CPC Class Codes: A61B 2018/1455 having a moving blade for cutting tissue grasped by the jaws

Abstract

A surgical device includes a first jaw and a second jaw disposed in opposed correspondence with the first jaw. The second jaw is mechanically coupled to the first jaw at a proximal end opposite a distal end. A cutting element is disposed within the second jaw, and a first driver is configured to move the cutting element proximally from the distal end toward the proximal end of the second jaw to cut a section of tissue disposed between the first and second jaws. The device may also include a stapling element disposed within the second jaw. The cutting element and the stapling element may be contiguous so as to define a cutting and stapling element, such as a wedge having a blade disposed thereon. As the wedge is moved proximally from the distal end of the second jaw to the proximal end, the wedge pushes a plurality of staples against a plurality of opposing staple guides disposed in the first jaw in order to staple a section of tissue while cutting the section of tissue.

Claims

1. A method comprising the steps of:

positioning a section of tissue between a first jaw disposed in opposite correspondence with a second jaw, the second jaw mechanically coupled to the first jaw at a proximal end opposite a distal end; and

actuating a first driver coupled to a cutting element disposed within and rotatable relative to the second jaw and having an actuating member receiving face, so as to move the cutting and stapling element proximally from the distal end toward the proximal end of the second jaw, thereby cutting the section of tissue disposed between the first jaw and the second jaw.

2. The method according to claim 1, wherein the cutting element further includes a stapling element, whereby actuation of the first driver simultaneously cuts and staples the section of tissue.

3. The method according to claim 1, further comprising the step of actuating a second driver coupled to the first jaw so as to cause the first jaw to close toward the second jaw, thereby clamping the section of tissue between the first and second jaws.

4. The method according to claim 3, wherein the second driver further includes a pair of threaded turning shafts and a horizontal threaded gearing shaft disposed in turning and gearing relationship with the pair of threaded turning shafts, wherein the second driver actuating step includes the substep of rotating the horizontal gearing shaft.

5. The method according to claim 3, wherein the second driver includes at least one threaded turning shaft, and wherein the first jaw includes a corresponding at least one threaded bore for receiving therethrough the threaded turning shaft, the method further comprising the step of rotating the turning shaft in a first rotational direction so as to cause the first jaw to move axially along the turning shaft away from the second jaw prior to positioning the section of tissue between a first jaw disposed in opposite correspondence with a second jaw, and wherein the second driver actuating step includes the substep of rotating the turning shaft in a second rotational direction so as to cause the first jaw to move axially along the turning shaft toward the second jaw in order to clamp the section of tissue.

6. The method according to claim 3, further comprising the steps of:

coupling the second driver to a first rotatable drive shaft of an electro-mechanical driver device; and

coupling the first driver to a second rotatable drive shaft of the electro-mechanical driver device.

7. The method according to claim 6, further comprising the step of driving to each of the first and second rotatable drive shafts with at least one motor arrangement of the electro-mechanical driver device.

8. The method according to claim 7, further comprising the step of driving each of the first driver and the second driver with an electro-mechanical driver device.

9. The method according to claim 8, wherein the step of driving the first driver and the second driver with an electro-mechanical driver further includes the substep of independently driving each of the first driver and the second driver.

10. The method according to claim 6, further comprising the steps of driving the first rotatable drive shaft with a first motor arrangement of the electro-mechanical driver device;

and

driving the second rotatable drive shaft with a second motor arrangement of the electro-mechanical driver device.

11. The method according to claim 1, wherein the cutting and stapling element includes a blade and wedge seated in a wedge guide channel formed in the second jaw.

12. The method according to claim 1, wherein the second driver includes a first rotatable shaft configured to effect the travel of the first jaw, the first rotatable shaft arranged in parallel to an axis of parallel correspondence of the first and second jaws when in a closed position.

13. The method according to claim 12, wherein the second driver actuating step includes the substep of rotating the first rotatable shaft in a first direction to effect opening of the jaws and rotating the first rotatable shaft in a second direction opposite to the first direction to effect closing of the jaws.

14. The method according to claim 13, further comprising the steps of:

coupling a proximal end of the first rotatable shaft to a first rotatable drive shaft of an electro-mechanical driver device; and

rotating the first rotatable shaft by rotation of the first rotatable drive shaft.

15. The method according to claim 1, wherein the first driver includes a second rotatable shaft rotatable about a longitudinal axis arranged in parallel to the axis of parallel correspondence of the first and second jaws when in a closed position.