Surgical device

• US 8,016,855 B2
• Filed: 03/08/2002
• Issued: 09/13/2011
• Est. Priority Date: 01/08/2002
• 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 J
• Application Number:
  US10/094,051
• Publication Number:
  US 20030130677A1
• Time in Patent Office: 3,476 Days
• Field of Search: 606/139, 606/205, 606/219, 606/207, 606/208, 227/175.1, 2271752-1821
• US Class Current: 606/205
• 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 17/285 combined with cutting implements
• CPC Class Codes: A61B 2017/003 Steerable
• CPC Class Codes: A61B 2017/00398 using powered actuators, e.g. stepper motors, solenoids
• CPC Class Codes: A61B 2017/00464 for use with different instruments with hole for different instruments A61B2017/22072
• CPC Class Codes: A61B 2017/00473 Distal part, e.g. tip or head A61B2017/00464 takes precedence
• CPC Class Codes: A61B 2017/00477 Coupling A61B2017/0046 takes precedence
• CPC Class Codes: A61B 2017/07214 Stapler heads
• CPC Class Codes: A61B 2017/320052 Guides for cutting instruments by marking A61B2090/395
• CPC Class Codes: A61B 34/30 Surgical robots
• CPC Class Codes: A61B 34/70 Manipulators specially adapted for use in surgery
• CPC Class Codes: A61B 34/71 Manipulators operated by drive cable mechanisms

Abstract

A surgical device includes a first jaw and a second jaw in opposed correspondence with the first jaw. A first driver is configured to cause relative movement of the first jaw and the second jaw in a plane. The first driver is configured to engage a drive shaft rotatable about a rotation axis arranged in non-parallel, e.g., perpendicular, correspondence to the plane. The device may also include a surgical member, e.g., a cutting and stapling element, disposed within the first jaw. A second driver is configured to cause relative movement of the surgical member in a direction parallel to the plane. The second driver is configured to engage a drive shaft rotatable about a rotation axis arranged in non-parallel correspondence to the plane.

Claims

1. A surgical device, comprising:

a first jaw defining a longitudinal axis;

a second jaw in opposed correspondence with the first jaw, the second jaw defining a longitudinal axis and being parallel relative to the longitudinal axis of the first jaw, the longitudinal axes of the first and second jaws defining a plane of approximation, wherein the first jaw is configured to be directly coupled to the second jaw by a guide and rib arrangement such that the jaws are in slidable cooperation with one another along an axis defined by the guide and rib arrangement, wherein the guide and rib arrangement is oriented in a direction substantially perpendicular relative to the longitudinal axis of the first jaw;

a first driver configured to cause relative movement of the first jaw and the second jaw in the plane such that the longitudinal axes of the first and second jaws remain situated in the plane and remain parallel to one another upon the relative movement, the first driver configured to detachably engage a distal end of a non-parallel drive shaft, the distal end of the non-parallel drive shaft being rotatable about a rotation axis arranged in fixed non-parallel angled correspondence to the plane of approximation; and

a gear housing mounted on an outer portion of the first jaw, the gear housing including a first drive socket coupled to the first driver and a quick-connect coupling adapted to be positionable over the first drive socket.

2. The device of 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, the second driver configured to engage a second drive shaft rotatable about a rotation axis arranged in angled correspondence to the plane.

3. The device according to claim 2, wherein the surgical member includes a cutting element.

4. The device according to claim 2, wherein the surgical member includes a stapling element.

5. The device according to claim 2, wherein the surgical member includes a thrust plate to which is mounted a cutting element and a stapling element.

6. The device according to claim 2, further comprising an electro-mechanical driver configured to rotate the second rotatable drive shaft.

7. The device according to claim 2, wherein the rotation axis of the second rotatable drive shaft is perpendicular to the plane of the first and second jaws.

8. The device according to claim 7, 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.

9. The device according to claim 2, wherein the gear housing mounted to the first jaw cooperates with the second driver, the gear housing having two 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 to the surgical member, the rotation of the gears thereby causing relative movement of the surgical member.

10. The device according to claim 2, further comprising an electro-mechanical driver including the first rotatable drive shaft adapted to drive the first driver and the second rotatable drive shaft adapted to drive the second driver.

11. The device according to claim 10, wherein the electro-mechanical driver includes at least one motor arrangement adapted to drive each of the first and second rotatable drive shafts.

12. The device according to claim 11, wherein the electro-mechanical driver includes a first motor arrangement adapted to drive the first rotatable drive shaft and a second motor arrangement adapted to drive the second rotatable drive shaft.

13. The device according to claim 1, further comprising an electro-mechanical driver configured to rotate the first rotatable drive shaft.

14. The device according to claim 1, wherein the rotation axis of the first rotatable drive shaft is perpendicular to the plane of the first and second jaws.

15. The device according to claim 1, 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.

16. The device according to claim 1, wherein the gear housing mounted to the first jaw includes at least two 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.

17. The device according to claim 1, wherein the rotation axis of the first rotatable drive shaft is in angled correspondence to the plane of the first and second jaws at a location at which the first driver engages the drive shaft.

18. A surgical device, comprising:

a first non-parallel drive shaft having a distal end, the distal end being rotatable about a rotation axis;

a first jaw defining a longitudinal axis;

a second jaw in opposed correspondence with the first jaw, the second jaw defining a longitudinal axis and being parallel relative to the longitudinal axis of the first jaw, the longitudinal axes of the first and second jaws defining a plane of approximation, wherein the first jaw is configured to be directly coupled to the second jaw by a guide and rib arrangement such that the jaws are in slidable cooperation with one another along an axis defined by the guide and rib arrangement, wherein the guide and rib arrangement is oriented in a direction substantially perpendicular relative to the longitudinal axis of the first jaw; and

a first driver detachably coupled to the distal end of the first non-parallel drive shaft and configured to cause relative movement of the first jaw and the second jaw in the plane and in accordance with the rotation of the first rotatable and non-parallel drive shaft, such that the longitudinal axes of the first and second jaws remain situated in the plane and remain parallel to one another upon the relative movement, the plane of approximation and the rotation axis arranged in fixed non-parallel angled correspondence; and

a gear housing mounted on an outer portion of the first jaw, the gear housing including a first drive socket coupled to the first driver and a quick-connect coupling adapted to be positionable over the first drive socket.

19. The device of 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, the second driver configured to engage a second drive shaft rotatable about a rotation axis arranged in angled correspondence to the plane.

20. The device according to claim 19, wherein the surgical member includes a cutting element.

21. The device according to claim 19, wherein the surgical member includes a stapling element.

22. The device according to claim 19, wherein the surgical member includes a thrust plate to which is mounted a cutting element and a stapling element.

23. The device according to claim 19, further comprising an electro-mechanical driver configured to rotate the second rotatable drive shaft.

24. The device according to claim 23, wherein the rotation axis of the second rotatable drive shaft is perpendicular to the plane of the first and second jaws.

25. The device according to claim 24, 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.

26. The device according to claim 19, wherein the gear housing mounted to the first jaw cooperates with the second driver, the gear housing having two 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 to the surgical member, the rotation of the gears thereby causing relative movement of the surgical member.

27. The device according to claim 19, further comprising an electro-mechanical driver including the first rotatable drive shaft adapted to drive the first driver and the second rotatable drive shaft adapted to drive the second driver.

28. The device according to claim 27, wherein the electro-mechanical driver includes at least one motor arrangement adapted to drive each of the first and second rotatable drive shafts.

29. The device according to claim 28, wherein the electro-mechanical driver includes a first motor arrangement adapted to drive the first rotatable drive shaft and a second motor arrangement adapted to drive the second rotatable drive shaft.

30. The device according to claim 28, further comprising a control system configured to control the at least one motor arrangement.

31. The device according to claim 30, wherein the control system is disposed within a housing.

32. The device according to claim 31, further comprising a remote control unit configured to communicate with the control system to control the at least one motor arrangement via the control system.

33. The device according to claim 32, wherein the remote control unit includes at least one of a wired remote control unit and a wireless remote control unit.

34. The device according to claim 30, further comprising a sensor corresponding to the first rotatable drive shaft, the sensor outputting a signal in response to and corresponding to a rotation of the first rotatable drive shaft.

35. The device according to claim 34, wherein the control system is configured to determine, based on the output signal of the sensor, at least one of a rotational position and a direction of rotation of the first rotatable drive shaft.

36. The device according to claim 30, wherein the control system includes a first memory unit.

37. The device according to claim 36, wherein the first memory unit is configured to store a plurality of operating programs, at least one of the operating programs corresponding to a cutting and stapling device attached to a distal end of an elongated shaft.

38. The device according to claim 37, wherein the control system is configured to identify the surgical member attached to the distal end of the elongated shaft as the cutting and stapling device, wherein the cutting and stapling device is one of a plurality of types of surgical members attachable to the distal end of the elongated shaft, the control system being configured to at least one of read and select the operating program from the first memory unit corresponding to the cutting and stapling device.

39. The device according to claim 38, wherein the control system is configured to identify the cutting and stapling device as the type of surgical member attached to the elongated shaft in accordance with a data read from a second memory unit disposed within the cutting and stapling device.

40. The device according to claim 39, further comprising a data cable disposed within the elongated shaft, the data cable being logically and electrically coupled to the control system and being logically and electrically coupleable to the second memory unit.

41. The device according to claim 18, further comprising an electro-mechanical driver configured to rotate the first rotatable drive shaft.

42. 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.

43. The device according to claim 42, 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.

44. The device according to claim 18, wherein the gear housing mounted on the first jaw includes at least two 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.

45. The device according to claim 18, wherein the rotation axis of the first rotatable drive shaft is in angled correspondence to the plane of the first and second jaws at a location at which the first driver engages the drive shaft.

46. A surgical device, comprising:

a motor;

a first non-parallel drive shaft having a distal end, the distal end being rotatable by the motor about a rotation axis;

a first jaw defining a longitudinal axis;

a second jaw in opposed correspondence with the first jaw, the second jaw defining a longitudinal axis and being parallel to the longitudinal axis of the first jaw, the longitudinal axes of the first and second jaws defining a plane of approximation, wherein the first jaw is configured to be directly coupled to the second jaw by a guide and rib arrangement such that the jaws are in slidable cooperation with one another along an axis defined by the guide and rib arrangement, wherein the guide and rib arrangement is oriented in a direction substantially perpendicular relative to the longitudinal axis of the first jaw; and

a first driver detachably coupled to the distal end of the first non-parallel drive shaft and configured to cause relative movement of the first jaw and the second jaw in the plane and in accordance with the rotation of the first rotatable and non-parallel drive shaft, wherein the longitudinal axes of the first and second jaws remain situated in the plane and remain parallel to one another upon the relative movement, the plane of approximation and the rotation axis arranged in fixed non-parallel angled correspondence; and

a gear housing mounted on an outer portion of the first jaw, the gear housing including a first drive socket coupled to the first driver and a quick-connect coupling adapted to be positionable over the first drive socket.

47. The system according to claim 46, wherein the rotation axis of the first rotatable drive shaft is in angled correspondence to the plane of the first and second jaws at a location at which the first driver engages the drive shaft.

48. A method of operating a surgical device, comprising the steps of:

rotating a first non-parallel drive shaft, the first non-parallel drive shaft having a distal end, the distal end rotating about a rotation axis; and

moving a first jaw and a second jaw relative to each other in a plane of approximation and in accordance with the rotation of the first rotatable and non-parallel drive shaft,

wherein the plane is defined by parallel longitudinal axes of the first and second jaws,

wherein the longitudinal axes of the first and second jaws remain situated in the plane and being parallel to the longitudinal axis of the first jaw upon the first and second jaws moving relative to each other, the plane of approximation arranged in fixed non-parallel angled correspondence with the rotation axis,

wherein the first jaw is configured to be directly coupled to the second jaw by a guide and rib arrangement such that the jaws are in slidable cooperation with one another along an axis defined by the guide and rib arrangement,

wherein the guide and rib arrangement is oriented in a direction substantially perpendicular relative to the longitudinal axis of the first jaw; and

wherein a gear housing is mounted on an outer portion of the first jaw, the gear housing including a first drive socket coupled to the first driver and a quick-connect coupling adapted to be positionable over the first drive socket.

49. The method according to claim 48, further comprising the steps of:

rotating a second drive shaft about a rotation axis; 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.

50. The method according to claim 49, wherein the surgical member is moved in a direction parallel to the plane, the plane arranged in perpendicular correspondence with the rotation axis.

51. The method according to claim 49, wherein the second rotatable drive shaft is rotated by an electro-mechanical driver.

52. The method according to claim 48, further comprising the steps of:

rotating a second drive shaft about a rotation axis; and

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

53. The method according to claim 48, further comprising the steps of:

rotating a second drive shaft about a rotation axis; and

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

54. The method according to claim 48, wherein the first jaw and a second jaw are moved relative to each other in a plane, the plane arranged in perpendicular correspondence with the rotation axis.

55. The method according to claim 48, wherein the first rotatable drive shaft is rotated by an electro-mechanical driver.

56. The method according to claim 48, wherein the rotation axis of the first rotatable drive shaft is in angled correspondence to the plane of the first and second jaws at a location at which the first driver engages the drive shaft.

57. A surgical device, comprising:

a first jaw defining a longitudinal axis;

a second jaw in opposed correspondence with the first jaw, the second jaw defining a longitudinal axis and being parallel to the longitudinal axis of the first jaw, the longitudinal axes of the first and second jaws having a plane of approximation, wherein the first jaw is configured to be directly coupled to the second jaw by a guide and rib arrangement such that the jaws are in slidable cooperation with one another along an axis defined by the guide and rib arrangement, wherein the guide and rib arrangement is oriented in a direction substantially perpendicular relative to the longitudinal axis of the first jaw;

a first driver configured to cause relative movement of the first jaw and the second jaw in the plane such that the longitudinal axes of the first and second jaws remain situated in the plane and remain parallel to one another upon the relative movement, the first driver configured to detachably engage a distal end of a non-parallel drive shaft, the distal end of the non-parallel drive shaft being rotatable about a rotation axis arranged in fixed non-parallel and perpendicular correspondence to the plane of approximation; and

a gear housing mounted on an outer portion of the first jaw, the gear housing including a first drive socket coupled to the first driver and a quick-connect coupling adapted to be positionable over the first drive socket.

58. A surgical device, comprising:

a first jaw defining a longitudinal axis;

a second jaw in opposed correspondence with the first jaw, the second jaw defining a longitudinal axis and being parallel to the longitudinal axis of the first jaw, the longitudinal axes of the first and second jaws defining a plane of approximation, wherein the first jaw is configured to be directly coupled to the second jaw by a guide and rib arrangement such that the jaws are in slidable cooperation with one another along an axis defined by the guide and rib arrangement, wherein the guide and rib arrangement is oriented in a direction substantially perpendicular relative to the longitudinal axis of the first jaw;

a first driver configured to cause relative movement of the first jaw and the second jaw in the plane such that the longitudinal axes of the first and second jaws remain situated in the plane and remain parallel to one another upon the relative movement, the first driver configured to detachably engage a distal end of a non-parallel drive shaft, the distal end of the non-parallel drive shaft being rotatable about a rotation axis arranged in fixed non-parallel and non-coplanar correspondence to the plane of approximation; and

a gear housing mounted on an outer portion of the first jaw, the gear housing including a first drive socket coupled to the first driver and a quick-connect coupling adapted to be positionable over the first drive socket.

59. A surgical device, comprising:

a first non-parallel drive shaft having a distal end, the distal end being rotatable about a rotation axis;

a first jaw defining a longitudinal axis;

a second jaw in opposed correspondence with the first jaw, the second jaw defining a longitudinal axis and being parallel to the longitudinal axis of the first jaw, the longitudinal axes of the first and second jaws defining a plane of approximation, wherein the first jaw is configured to be directly coupled to the second jaw by a guide and rib arrangement such that the jaws are in slidable cooperation with one another along an axis defined by the guide and rib arrangement, wherein the guide and rib arrangement is oriented in a direction substantially perpendicular relative to the longitudinal axis of the first jaw;

a first driver detachably coupled to the distal end of the first non-parallel drive shaft and configured to cause relative movement of the first jaw and the second jaw in the plane and in accordance with the rotation of the first rotatable and non-parallel drive shaft, such that the longitudinal axes of the first and second jaws remain situated in the plane and remain parallel to one another upon the relative movement, the plane of approximation and the rotation axis arranged in fixed non-parallel and perpendicular correspondence; and

a gear housing mounted on an outer portion of the first jaw, the gear housing including a first drive socket coupled to the first driver and a quick-connect coupling adapted to be positionable over the first drive socket.

60. A surgical device, comprising:

a first non-parallel drive shaft having a distal end, the distal end being rotatable about a rotation axis;

a first jaw defining a longitudinal axis;

a second jaw in opposed correspondence with the first jaw, the second jaw defining a longitudinal axis and being parallel to the longitudinal axis of the first jaw, the longitudinal axes of the first and second jaws defining a plane of approximation, wherein the first jaw is configured to be directly coupled to the second jaw by a guide and rib arrangement such that the jaws are in slidable cooperation with one another along an axis defined by the guide and rib arrangement, wherein the guide and rib arrangement is oriented in a direction substantially perpendicular relative to the longitudinal axis of the first jaw;

a first driver detachably coupled to the distal end of the first non-parallel drive shaft and configured to cause relative movement of the first jaw and the second jaw in the plane and in accordance with the rotation of the first rotatable and non-parallel drive shaft, such that the longitudinal axes of the first and second jaws remain situated in the plane and remain parallel to one another upon the relative movement, the plane of approximation and the rotation axis arranged in fixed non-parallel and non-coplanar correspondence; and

a gear housing mounted on an outer portion of the first jaw, the gear housing including a first drive socket coupled to the first driver and a quick-connect coupling adapted to be positionable over the first drive socket.

61. A surgical device, comprising:

a motor;

a first non-parallel drive shaft having a distal end, the distal end being rotatable by the motor about a rotation axis;

a first jaw defining a longitudinal axis;

a second jaw in opposed correspondence with the first jaw, the second jaw defining a longitudinal axis and being parallel to the longitudinal axis of the first jaw, the longitudinal axes of the first and second jaws defining a plane of approximation, wherein the first jaw is configured to be directly coupled to the second jaw by a guide and rib arrangement such that the jaws are in slidable cooperation with one another along an axis defined by the guide and rib arrangement, wherein the guide and rib arrangement is oriented in a direction substantially perpendicular relative to the longitudinal axis of the first jaw;

a first driver detachably coupled to the distal end of the first non-parallel drive shaft and configured to cause relative movement of the first jaw and the second jaw in the plane and in accordance with the rotation of the first rotatable and non-parallel drive shaft, wherein the longitudinal axes of the first and second jaws remain situated in the plane and remain parallel to one another upon the relative movement, the plane of approximation and the rotation axis arranged in fixed non-parallel and perpendicular correspondence; and

a gear housing mounted on an outer portion of the first jaw, the gear housing including a first drive socket coupled to the first driver and a quick-connect coupling adapted to be positionable over the first drive socket.

62. A surgical device, comprising:

a motor;

a first non-parallel drive shaft having a distal end, the distal end being rotatable by the motor about a rotation axis;

a first jaw defining a longitudinal axis;

a second jaw in opposed correspondence with the first jaw, the second jaw defining a longitudinal axis and being parallel to the longitudinal axis of the first jaw, the longitudinal axes of the first and second jaws defining a plane of approximation, wherein the first jaw is configured to be directly coupled to the second jaw by a guide and rib arrangement such that the jaws are in slidable cooperation with one another along an axis defined by the guide and rib arrangement, wherein the guide and rib arrangement is oriented in a direction substantially perpendicular relative to the longitudinal axis of the first jaw;

a first driver detachably coupled to the distal end of the first non-parallel drive shaft and configured to cause relative movement of the first jaw and the second jaw in the plane and in accordance with the rotation of the first rotatable and non-parallel drive shaft, wherein the longitudinal axes of the first and second jaws remain situated in the plane and remain parallel to one another upon the relative movement, the plane of approximation and the rotation axis arranged in fixed non-parallel and non-coplanar correspondence; and

a gear housing mounted on an outer portion of the first jaw, the gear housing including a first drive socket coupled to the first driver and a quick-connect coupling adapted to be positionable over the first drive socket.

63. A method of operating a surgical device, comprising the steps of:

rotating a first non-parallel drive shaft, the first non-parallel drive shaft having a distal end, the distal end rotating about a rotation axis; and

moving a first jaw and a second jaw relative to each other in a plane of approximation and in accordance with the rotation of the first rotatable and non-parallel drive shaft,

wherein the plane is defined by longitudinal parallel axes of the first and second jaws,

wherein the longitudinal axes of the first and second jaws remain situated in the plane and being parallel to the longitudinal axis of the first jaw upon the first and second jaws moving relative to each other, the plane of approximation arranged in fixed non-parallel and perpendicular correspondence with the rotation axis,

wherein the first jaw is configured to be directly coupled to the second jaw by a guide and rib arrangement such that the jaws are in slidable cooperation with one another along an axis defined by the guide and rib arrangement,

wherein the guide and rib arrangement is oriented in a direction substantially perpendicular relative to the longitudinal axis of the first jaw; and

wherein a gear housing is mounted on an outer portion of the first jaw, the gear housing including a first drive socket coupled to the first driver and a quick-connect coupling adapted to be positionable over the first drive socket.

64. A method of operating a surgical device, comprising the steps of:

rotating a first non-parallel drive shaft, the first non-parallel drive shaft having a distal end, the distal end rotating about a rotation axis; and

moving a first jaw and a second jaw relative to each other in a plane of approximation and in accordance with the rotation of the first rotatable and non-parallel drive shaft,

wherein the plane is defined by longitudinal parallel axes of the first and second jaws,

wherein the longitudinal axes of the first and second jaws remain situated in the plane and being parallel to the longitudinal axis of the first jaw upon the first and second jaws moving relative to each other, the plane of approximation arranged in fixed nonparallel and non-coplanar correspondence with the rotation axis,

wherein the first jaw is configured to be directly coupled to the second jaw by a guide and rib arrangement such that the jaws are in slidable cooperation with one another along an axis defined by the guide and rib arrangement,

wherein the guide and rib arrangement is oriented in a direction substantially perpendicular relative to the longitudinal axis of the first jaw; and

wherein a gear housing is mounted on an outer portion of the first jaw, the gear housing including a first drive socket coupled to the first driver and a quick-connect coupling adapted to be positionable over the first drive socket.