Surgical device

• US 20070023476A1
• Filed: 07/27/2005
• Published: 02/01/2007
• Est. Priority Date: 07/27/2005
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: Datcuk, Peter, Whitman, Michael
• Granted Patent: US 7,770,773 B2
• Time in Patent Office: Days
• US Class Current: 227/175.100
• 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 17/072 for applying a row of staples in a single action , e.g. the staples being applied simultaneously
• CPC Class Codes: A61B 17/07207 the staples being applied sequentially
• CPC Class Codes: A61B 17/282 Jaws
• CPC Class Codes: A61B 17/32 Surgical cutting instruments A61B18/042 takes precedence; suture cutters A61B17/0467; instruments for ligaturing or cutting A61B17/128; instruments for rupturing the amniotic membrane A61B17/4208; specially adapted knives for eye surgery A61F9/0133
• CPC Class Codes: A61B 2017/00017 Electrical control of surgical instruments
• CPC Class Codes: A61B 2017/00199 with a console, e.g. a control panel with a display
• CPC Class Codes: A61B 2017/07214 Stapler heads
• CPC Class Codes: A61B 2017/2927 the angular position of the head being adjustable with respect to the shaft
• CPC Class Codes: A61B 2017/2933 camming or 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 includes a first jaw and a second jaw moveable relative to the first jaw between a first position, in which the first and second jaws are aligned within a plane, and a second position, in which the second jaw is in non-parallel correspondence to the plane. The surgical device may include a surgical member, e.g., a cutting and/or stapling element, disposed within the first jaw, and a second driver configured to cause relative movement of the surgical member in a direction parallel to the plane. The first and second jaws may include a camming arrangement that is configured to move the second jaw between the first and second positions. The camming arrangement may include a channel disposed along at least a portion of one or both of the first and second jaws, a ball bearing disposed within the channel.

Claims

1. A surgical device, comprising:

a first jaw; and

a second jaw coupled to and moveable relative to the first jaw between a closed position and an intermediate open position within a plane, the second jaw further moveable relative to the first jaw between the intermediate open position and a fully opened position at least rotationally about an axis located within the plane.

2. The device according to claim 1, wherein, between the intermediate open position and the fully opened position, the second jaw is further moveable relative to the first jaw in a direction parallel to the plane.

3. The device according to claim 2, further comprising a first driver configured to cause relative movement of the first jaw and the second jaw.

4. The device according to claim 2, wherein the first driver is configured to engage a drive shaft rotatable about a rotation axis arranged in one of parallel and non-parallel correspondence to the plane.

5. The device according to claim 1, further comprising:

a surgical member disposed within the first jaw; and

a second driver configured to cause relative movement of the surgical member in a direction parallel to the plane.

6. The device according to claim 5, wherein the second driver configured to engage a second drive shaft rotatable about a rotation axis arranged in non-parallel correspondence to the plane.

7. The device according to claim 5, wherein the second driver configured to engage a second drive shaft rotatable about a rotation axis arranged in parallel correspondence to the plane.

8. The device according to claim 5, wherein the surgical member includes one of a cutting element, a stapling element and a thrust plate to which is mounted a cutting element and a stapling element.

9. The device according to claim 3, further comprising an electromechanical driver configured to rotate the first rotatable drive shaft.

10. The device according to claim 3, wherein the rotation axis of the first rotatable drive shaft is perpendicular to the plane of the first and second jaws.

11. The device according to claim 3, wherein the first rotatable drive shaft is rotated in a first direction to effect extending of the jaws and rotated in a second direction opposite to the first direction to effect closing of the jaws.

12. The device according to claim 2, wherein the first driver includes at least a spur gears, a worm and a worm gear in turning and gearing relationship with each other, and an externally-threaded screw fixedly connected at one end to the worm gear and in engagement with an internally-threaded bore of the second jaw, the rotation of the gears thereby causing relative movement of the first jaw and the second jaw.

13. The device according to claim 6, wherein the second rotatable drive shaft is rotated in a first direction to extend the surgical member and rotated in a second direction opposite to the first direction to retract the surgical member.

14. The device according to claim 5, wherein the second driver includes at least a spur gears and a worm in turning and gearing relationship with each other and with a pair of additional worm gears, each of the pair of additional worm gears having a centrally-disposed, internally-threaded bore in engagement with one of a pair of externally-threaded screws fixedly connected the surgical member, the rotation of the gears thereby causing relative movement of the surgical member.

15. The device according to claim 3, further comprising an electromechanical driver including the first rotatable drive shaft adapted to drive the first driver and a second rotatable drive shaft adapted to drive a second driver.

16. The device according to claim 12, wherein the internally threaded bore of the second jaw is disposed within an arm, the arm configured to move longitudinally within and relative to a sleeve attached to the first jaw, the sleeve and the arm having a camming arrangement that is configured to move the second jaw between the first and second positions.

17. The device according to claim 16, wherein the camming arrangement includes a channel disposed along at least on of the arm and the sleeve, a cam follower disposed within the channel.

18. A surgical device, comprising:

a first drive shaft rotatable about a rotation axis;

a first jaw;

a second jaw coupled to the first jaw, the second jaw moveable relative to the first jaw by rotation of the first drive shaft between a closed position and an intermediate open position within a plane, the second jaw further moveable relative to the first jaw between the intermediate open position and a fully opened position at least rotationally about an axis located within the plane.

19. The device according to claim 18, wherein, between the intermediate open position and the fully opened position, the second jaw is further moveable relative to the first jaw in a direction parallel to the plane.

20. The device according to claim 19, further comprising a first driver configured to cause relative movement of the first jaw and the second jaw.

21. The device according to claim 19, wherein the first driver is configured to engage the first drive shaft, the rotation axis arranged in one of parallel and non-parallel correspondence to the plane.

22. The device according to claim 18, further comprising:

a surgical member disposed within the first jaw; and

a second driver configured to cause relative movement of the surgical member in a direction parallel to the plane.

23. The device according to claim 22, wherein the second driver is configured to engage a second drive shaft rotatable about a rotation axis arranged in non-parallel correspondence to the plane.

24. The device according to claim 22, wherein the second driver is configured to engage a second drive shaft rotatable about a rotation axis arranged in parallel correspondence to the plane.

25. The device according to claim 22, wherein the surgical member includes one of a cutting element, a stapling element and a thrust plate to which is mounted a cutting element and a stapling element.

26. The device according to claim 18, further comprising an electromechanical driver configured to rotate the first rotatable drive shaft.

27. The device according to claim 18, wherein the rotation axis of the first rotatable drive shaft is perpendicular to the plane of the first and second jaws.

28. The device according to claim 18, wherein the first rotatable drive shaft is rotated in a first direction to effect extending of the jaws and rotated in a second direction opposite to the first direction to effect closing of the jaws.

29. The device according to claim 19, wherein the first driver includes at least a spur gear, a worm and a worm gear in turning and gearing relationship with each other, and an externally-threaded screw fixedly connected at one end to the worm gear and in engagement with an internally-threaded bore of the second jaw, the rotation of the gears thereby causing relative movement of the first jaw and the second jaw.

30. The device according to claim 22, wherein the second rotatable drive shaft is rotated in a first direction to extend the surgical member and rotated in a second direction opposite to the first direction to retract the surgical member.

31. The device according to claim 22, wherein the second driver includes at least a spur gears and a worm in turning and gearing relationship with each other and with a pair of additional worm gears, each of the pair of additional worm gears having a centrally-disposed, internally-threaded bore in engagement with one of a pair of externally-threaded screws fixedly connected the surgical member, the rotation of the gears thereby causing relative movement of the surgical member.

32. The device according to claim 19, further comprising an electromechanical driver including the first rotatable drive shaft adapted to drive the first driver and a second rotatable drive shaft adapted to drive a second driver.

33. The device according to claim 31, wherein the internally threaded bore of the second jaw is disposed within an arm, the arm configured to move longitudinally within and relative to a sleeve attached to the first jaw, the sleeve and the arm having a camming arrangement that configured to move the second jaw between the first and second positions.

34. The device according to claim 33, wherein the camming arrangement includes a channel disposed along at least on of the arm and the sleeve, a can follower disposed within the channel.

35. A method of operating a surgical device, comprising the step of:

moving a second jaw relative to a first jaw between a closed position and an intermediate open position within a plane; and

moving the second jaw relative to the first jaw between the intermediate open position and a fully opened position at least rotationally about an axis located within the plane.

36. The method according to claim 35, further comprising the step of:

rotating a first drive shaft about a rotation axis, the first drive shaft configured to move the second jaw between the closed, intermediate open and fully opened positions.

37. The method according to claim 36, further comprising the steps of:

rotating a second drive shaft; and

moving a surgical member disposed within the first jaw in a direction parallel to the plane and in accordance with the rotation of the second rotatable drive shaft.

38. The method according to claim 37, wherein the surgical member includes at least one of a cutting element and a stapling element.

39. The method according to claim 36, wherein the first rotatable drive shaft is rotated by an electromechanical driver.

40. The method according to claim 36, wherein the second rotatable drive shaft is rotated by an electromechanical driver.

41. The method according to claim 36, wherein the first jaw and the second jaw include a camming arrangement, the method further comprising the step of engaging the camming arrangement when the first and second jaws are moved between the first and second positions.

42. The method according to claim 41, wherein the camming arrangement includes a channel disposed along at least on of the arm and the sleeve, a cam follower disposed within the channel.

43. A surgical device, comprising:

a first jaw; and

a second jaw coupled to and moveable relative to the first jaw between a closed position and an intermediate open position wherein, between the closed position and the intermediate open position, the clamping surfaces of the first and second jaws define first and second planes that remain in parallel correspondence relative to each other, the second jaw further moveable relative to the first jaw between the intermediate open position and a fully opened position wherein, between the intermediate open position and the fully opened position, the first and second planes defined by the clamping surfaces of the first and second jaws are moved out of parallel correspondence relative to each other.

44. The device according to claim 43, wherein, in the closed position, the first jaw and the second jaw are arranged in a third plane.

45. The device according to claim 44, wherein, between the intermediate open position and a fully opened position, the second jaw is pivotable relative to the first jaw about an axis perpendicular to the third plane.

46. The device according to claim 45, further comprising a first driver configured to cause relative movement of the first jaw and the second jaw.

47. The device according to claim 46, wherein the first driver is configured to engage a first rotatable drive shaft that is rotatable about a rotation axis arranged in one of parallel and non-parallel correspondence to the third plane.

48. The device according to claim 44, further comprising:

a surgical member disposed within the first jaw; and

a second driver configured to cause relative movement of the surgical member in a direction parallel to the third plane.

49. The device according to claim 48, wherein the second driver is configured to engage a second drive shaft rotatable about a rotation axis arranged in one of parallel and non-parallel correspondence to the third plane.

50. The device according to claim 48, wherein the surgical member includes at least one of a cutting element, a stapling element and a thrust plate to which is mounted a cutting element and a stapling element.

51. The device according to claim 47, further comprising an electromechanical driver configured to rotate the first rotatable drive shaft.

52. The device according to claim 49, further comprising an electromechanical driver configured to rotate the second rotatable drive shaft.