Surgical device

• US 9,078,654 B2
• Filed: 05/21/2014
• Issued: 07/14/2015
• Est. Priority Date: 06/02/1999
• Status: Expired due to Fees

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Whitman, Michael P., Burbank, John E.
• Primary Examiner(s): SEVERSON, RYAN J
• Application Number:
  US14/283,757
• Publication Number:
  US 20140257353A1
• Time in Patent Office: 419 Days
• Field of Search: 606/143, 606205-207, 2271751-1821
• US Class Current: 1/1
• 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 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.

Claims

1. A surgical device, comprising:

a first jaw defining a longitudinal axis;

a second jaw mechanically coupled in opposed relation to the first jaw;

a cutting element disposed within and rotatable relative to the second jaw; and

a wedge coupled to the cutting element, the wedge disposed within the second jaw.

2. The surgical device according to claim 1, wherein the wedge is coupled to the cutting element via a pivot member.

3. The surgical device according to claim 2, wherein the wedge is seated in a wedge guide channel formed in the second jaw.

4. The surgical device according to claim 3, wherein

an upper horizontal shaft is coupled to a proximal end of the first jaw;

and

a lower horizontal shaft extends through the second jaw, the upper and lower horizontal shafts configured to be parallel to each other at a fixed distance.

5. The surgical device according to claim 4, wherein the proximal end of the first jaw includes a pair of threaded vertical bores through which extend a corresponding pair of vertical shafts.

6. The surgical device according to claim 5, wherein the pair of vertical shafts engage the upper horizontal shaft.

7. The surgical device according to claim 6, wherein the cutting element includes a cutting edge initially disposed in a retracted position where the cutting edge faces the lower horizontal shaft.

8. The surgical device according to claim 7, wherein the cutting element includes a tail region having an actuating pin receiving face initially facing a proximal end of the surgical device.

9. The surgical device according to claim 8, wherein a fixed actuating pin is disposed adjacent the actuating pin receiving face, the fixed actuating pin attached to the first jaw.

10. The surgical device according to claim 9, wherein, when the lower horizontal shaft is rotated, the wedge is moved from a distal end to the proximal end of the first jaw.

11. The surgical device according to claim 10, wherein, when the lower horizontal shaft is further rotated, the actuating pin receiving face of the tail region of the cutting element engages the fixed actuating pin and causes the cutting element to rotate relative to the wedge around the pivot member.

12. The surgical device according to claim 11, wherein, when the lower horizontal shaft is further rotated, the cutting edge of the cutting element faces the proximal end of the first jaw.

13. The surgical device according to claim 12, further comprising:

a first rotatable shaft rotatable about the longitudinal axis of the first jaw, the first rotatable shaft coupled to the first jaw and adapted to cause the first jaw to travel linearly in a direction perpendicular to the longitudinal axis while maintaining parallel correspondence between the first and second jaws; and

a second rotatable shaft being in turning and gearing relationship with the cutting element.

14. The surgical device according to claim 13, further comprising:

a first motor for driving the upper horizontal shaft; and

a second motor for driving the lower horizontal shaft.

15. An electro-mechanical surgical system, comprising:

an elongated shaft;

a first axially rotatable drive shaft disposed within the elongated shaft;

a surgical device configured to detachably couple to a distal end of the elongated shaft, wherein the surgical device includes;

a first jaw defining a longitudinal axis;

a second jaw mechanically coupled in opposed relation to the first jaw;

a cutting element disposed within and rotatable relative to the second jaw; and

a wedge coupled to the cutting element, the wedge disposed within the second jaw.

16. The surgical device according to claim 15, wherein the wedge is coupled to the cutting element via a pivot member and is seated in a wedge guide channel formed in the second jaw.

17. The surgical device according to claim 16, wherein

an upper horizontal shaft is coupled to a proximal end of the first jaw;

and

a lower horizontal shaft extends through the second jaw, the upper and lower horizontal shafts configured to be parallel to each other at a fixed distance.

18. The surgical device according to claim 17, wherein the proximal end of the first jaw includes a pair of threaded vertical bores through which extend a corresponding pair of vertical shafts, the pair of vertical shafts engaging the upper horizontal shaft.

19. The surgical device according to claim 18, wherein the cutting element includes:

a cutting edge initially disposed in a retracted position where the cutting edge faces the lower horizontal shaft; and

a tail region having an actuating pin receiving face initially facing a proximal end of the surgical device.

20. The surgical device according to claim 19, wherein

a fixed actuating pin is disposed adjacent the actuating pin receiving face, the fixed actuating pin attached to the first jaw;

and

when the lower horizontal shaft is rotated,

(i) the wedge is moved from a distal end to the proximal end of the first jaw; and

(ii) the actuating pin receiving face of the tail region of the cutting element engages the fixed actuating pin and causes the cutting element to rotate relative to the wedge around the pivot member.