Surgical Device

• US 20090095790A1
• Filed: 09/22/2008
• Published: 04/16/2009
• Est. Priority Date: 09/21/2007
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Power Medical Interventions, Inc. (Medtronic Plc)
• Inventors: Whitman, Michael P., Datcuk, Peter, Malinouskas, Donald, Nicholas, David
• Granted Patent: US 7,918,230 B2
• Time in Patent Office: Days
• US Class Current: 227/175.1
• 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 jaw portion, having a first jaw in opposed correspondence with a second jaw, the second jaw including a surgical member;

a shaft portion coupled to a proximal end of the jaw portion;

a gear arrangement configured to operate such that the jaw portion is rotatable relative to the shaft portion, the jaw portion is moveable relative to the shaft portion, the first jaw is moveable relative to the second jaw and the surgical member is moveable within the second jaw,

wherein 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.

2. The surgical device of claim 1, wherein, when the first jaw is in an open position relative to the second jaw, the jaw portion is rotatable relative to the shaft portion.

3. The surgical device of claim 2, further comprising a gear element.

4. The surgical device of claim 3, wherein the gear element is selectively engaged based upon a position of the first jaw relative to the second jaw.

5. The surgical device of claim 4, wherein the gear element is an idler gear that is moveable between a proximal position and a distal position.

6. The surgical device of claim 5, further comprising a cam block that is moveable between a proximal position and a distal position.

7. The surgical device of claim 6, wherein the cam block includes a surface, and wherein the cam block is moved between its proximal and distal positions by engagement of the surface with a surface of one of the first and second jaws when the first and second jaws are moved relative to each other.

8. The surgical device of claim 7, wherein the idler gear is moved between its proximal and distal positions by engagement of the cam block with the idler gear.

9. The surgical device of claim 8, wherein, when the idler gear is in a distal position, the idler gear engages recesses of a housing.

10. The surgical device of claim 9, wherein, when the idler gear engages the recesses of the housing, rotation of the idler gear by a drive element causes the jaw portion to rotate relative to the shaft portion.

11. The surgical device of claim 10, wherein, when the idler gear is in a proximal position, the idler gear is out of engagement with the recesses of the housing, such that the idler gear is rotatable relative to the housing.

12. The surgical device of claim 11, wherein, when the idler gear is out of engagement with the recesses of the housing, rotation of the idler gear by the drive element causes the surgical member to move within the second jaw.

13. The surgical device of claim 12, wherein the surgical member includes at least one of a cutting element and a stapling element.

14. A method of using a surgical device, the surgical device including a jaw portion that has a first jaw in opposed correspondence with a second jaw, the second jaw including a surgical member, and a shaft portion coupled to a proximal end of the jaw portion, the method comprising the steps of:

operating the surgical device so as to selectively rotate the jaw portion relative to the shaft portion, 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; and

locking the surgical member from moving within the second jaw unless the first jaw is in a closed position relative to the second jaw.

15. The method of claim 14, further comprising the step of rotating the jaw portion relative to the shaft portion when the first jaw is in an open position relative to the second jaw.

16. The method of claim 15, further comprising the step of providing a gear element.

17. The method of claim 16, further comprising the step of selectively engaging the gear element based upon a position of the first jaw relative to the second jaw.

18. The method of claim 17, wherein the step of providing the gear element includes providing an idler gear that is moveable between a proximal position and a distal position.

19. The method of claim 18, further comprising the step of providing a cam block that is moveable between a proximal position and a distal position.

20. The method of claim 19, wherein the cam block includes a surface, and further comprising the step of moving the cam block between its proximal and distal positions by engagement of the surface with a surface of one of the first and second jaws when the first and second jaws are moved relative to each other.

21. The method of claim 20, further comprising the step of moving the idler gear between its proximal and distal positions by engagement of the cam block with the idler gear.

22. The method of claim 21, further comprising the step of the idler gear engaging recesses of a housing when the idler gear is in a distal position.

23. The method of claim 22, wherein, when the idler gear engages the recesses of the housing, rotation of the idler gear by a drive element causes the jaw portion to rotate relative to the shaft portion.

24. The method of claim 23, further comprising the steps of:

moving the idler gear to a proximal position such that the idler gear is out of engagement with the recesses of the housing; and

rotating the idler gear relative to the housing.

25. The method of claim 24, wherein, upon rotating the idler gear by the drive element, the surgical member is moved within the second jaw.

26. The method of claim 25, wherein the surgical member includes at least one of a cutting element and a stapling element, and the step of moving the surgical member includes at least one of cutting and stapling a section of tissue.

27. A surgical system comprising:

at least one motor;

a surgical instrument including;

a jaw portion, having a first jaw in opposed correspondence with a second jaw, the second jaw including a surgical member;

a shaft portion coupled to a proximal end of the jaw portion;

a gear arrangement configured to operate such that, upon actuation of the at least one motor, the jaw portion is rotatable relative to the shaft portion, the jaw portion is moveable relative to the shaft portion, the first jaw is moveable relative to the second jaw and the surgical member is moveable within the second jaw,

wherein 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.

28. The surgical system of claim 27, wherein, when the first jaw of the surgical instrument is in an open position relative to the second jaw, the jaw portion is rotatable relative to the shaft portion.

29. The surgical system of claim 28, wherein the surgical instrument further comprises a gear element.

30. The surgical system of claim 29, wherein the gear element of the surgical instrument is selectively engaged based upon a position of the first jaw relative to the second jaw.

31. The surgical system of claim 30, wherein the gear element of the surgical instrument is an idler gear that is moveable between a proximal position and a distal position.

32. The surgical system of claim 31, wherein the surgical instrument further comprises a cam block that is moveable between a proximal position and a distal position.

33. The surgical system of claim 32, wherein the cam block of the surgical instrument includes a surface, and wherein the cam block is moved between its proximal and distal positions by engagement of the surface with a surface of one of the first and second jaws when the first and second jaws are moved relative to each other.

34. The surgical system of claim 33, wherein the idler gear of the surgical instrument is moved between its proximal and distal positions by engagement of the cam block with the idler gear.

35. The surgical system of claim 34, wherein, when the idler gear is in a distal position, the idler gear engages recesses of a housing of the surgical instrument.

36. The surgical system of claim 35, wherein, when the idler gear engages the recesses of the housing, rotation of the idler gear by a drive element causes the jaw portion to rotate relative to the shaft portion.

37. The surgical system of claim 36, wherein, when the idler gear of the surgical instrument is in a proximal position, the idler gear is out of engagement with the recesses of the housing, such that the idler gear is rotatable relative to the housing.

38. The surgical system of claim 37, wherein, when the idler gear of the surgical instrument is out of engagement with the recesses of the housing, rotation of the idler gear by the drive element causes the surgical member to move within the second jaw.

39. The surgical system of claim 38, wherein the surgical member of the surgical instrument includes at least one of a cutting element and a stapling element.