Multiple instrument retaining assembly and methods therefor

• US 7,803,163 B2
• Filed: 10/28/2005
• Issued: 09/28/2010
• Est. Priority Date: 12/04/2004
• Status: Active Grant

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Skakoon, James G.
• Primary Examiner(s): Woo; Julian W
• Assistant Examiner(s): ANDERSON, GREGORY A
• Application Number:
  US11/262,298
• Publication Number:
  US 20060122629A1
• Time in Patent Office: 1,796 Days
• Field of Search: 606/130, 248/68.1, 248/74.1
• US Class Current: 606/130
• CPC Class Codes: A61B 34/20 Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
• CPC Class Codes: A61B 90/11 with guides for needles or instruments, e.g. arcuate slides or ball joints

Abstract

This patent document discusses, among other things, assemblies and methods for retaining a plurality of surgical instruments. In one example, a retaining assembly includes a floating seat having a seat first side and a seat second side. One or both of the seat first or second sides include at least one recessed portion to receive an instrument. In another example, a first clamp member is positioned adjacent the seat first side and a floating second clamp member is positioned adjacent the seat second side. An actuator engaged with an actuator receiving lumen is disposed adjacent the seat second side. Movement of the actuator in a first direction advances the first clamp member, the floating seat, and the floating second clamp member toward one another. In varying examples, the floating second clamp member comprises a rocker configured to pivot in three-dimensions, while the floating seat is configured to pivot in two-dimensions.

Claims

1. An assembly for retaining a plurality of surgical instruments, the assembly comprising:

a seat including a seat first side and a seat second side, the seat first side positioned opposite the seat second side;

a first clamp member positioned adjacent the seat first side;

an arm member that is disposed at a fixed distance away from the first clamp member;

a second clamp member positioned adjacent the seat second side; and

an actuator located adjacent the seat second side and operably coupled to the arm member, wherein the actuator includes a threaded screw and wherein the arm member includes an actuator receiving lumen having one or more threads matable with the threaded screw;

wherein the seat and the second clamp member are moveably disposed between the arm member and the first clamp member, and

wherein movement of the actuator in a first direction moves the seat first side toward the first clamp member and moves the second clamp member toward the seat second side.

2. The assembly as recited in claim 1, wherein the arm member extends from the first clamp member substantially toward the seat second side.

3. The assembly as recited in claim 1, wherein a retaining orientation of the seat or the second clamp member is dependent on a position, a size, or a quantity of the surgical instruments to be retained.

4. The assembly as recited in claim 1, wherein one or both of the seat first side or the seat second side include one or more recessed portions, each recessed portion comprising a part of a retainment holder when the actuator is substantially moved in the first direction.

5. The assembly as recited in claim 1, wherein the second clamp member comprises a rocker configured to pivot about one or more surgical instruments to be retained or the seat second side when engaged by movement of the actuator in the first direction.

6. The assembly as recited in claim 5, wherein the rocker comprises a rocker first side facing the actuator, the rocker first side including a rocking stud;

and a rocker second side facing the seat second side, the rocker second side including at least first and second contact portions; and

wherein the rocking stud and the first and second contact portions are configured to allow the rocker to pivot in three dimensions.

7. A drive and trajectory guide assembly including the assembly of claim 1 coupled thereto.

8. The assembly as recited in claim 7, wherein an actuator receiving lumen is formed in a second stage of the drive and trajectory guide assembly.

33. The assembly of claim 2, wherein the arm member extends from a first end of the first clamp member to a second end of the first clamp member.

9. An assembly for retaining a plurality of surgical instruments, the assembly comprising:

a floating seat including a seat first side and a seat second side, the seat first side positioned opposite the seat second side;

a first clamp member positioned adjacent the seat first side and a floating second clamp member positioned adjacent the seat second side;

a collar substantially surrounding a portion of the floating seat and the floating second clamp member;

an actuator disposed near the second clamp member; and

wherein movement of the actuator in a first direction advances the first clamp member, the floating seat, and the floating second clamp member toward one another.

10. The assembly as recited in claim 9, wherein the collar comprises an arm member extending from a first clamp member first end to a first clamp member second end.

11. The assembly as recited in claim 9, wherein an actuator receiving lumen engagable with the actuator is positioned in the collar.

12. The assembly as recited in claim 9, wherein the floating second clamp member comprises a rocker configured to pivot in three dimensions about one or more surgical instruments to be retained or the seat second side.

13. The assembly as recited in claim 12, wherein the rocker comprises a rocker first side oriented adjacent an actuator distal end, the rocker first side including a rocking stud;

and

a rocker second side oriented adjacent the seat second side, the rocker second side including at least first and second contact portions; and

wherein the rocking stud is configured to transfer movement of the actuator in the first direction to the at least first and second contact portions of the rocker second side.

14. The assembly as recited in claim 9, wherein one or both of the seat first side or the seat second side comprise one or more recessed portions, each recessed portion comprising a part of a retainment holder when the actuator is substantially moved in the first direction.

15. A drive and trajectory guide assembly including the assembly of claim 9 coupled thereto.

16. The assembly as recited in claim 15, wherein an actuator receiving lumen is formed in a second stage of the drive and trajectory guide assembly.

17. A retainment assembly comprising:

a collar including an inner surface;

a floating seat at least partially within the collar, the seat including at least two recessed portions;

a floating clamp member positioned between the collar and the floating seat, the floating clamp member including a clamp member first side adjacent the inner surface of the collar and a clamp member second side adjacent the floating seat; and

an actuator received in, and engageable with, an actuator receiving lumen.

18. The assembly as recited in claim 17, wherein movement of the actuator in a first direction advances both the floating seat and the floating clamp member toward a portion of the inner surface of the collar.

19. The assembly as recited in claim 17, wherein the floating clamp member comprises a rocker engagable with one or more recessed portions of the seat to form one or more retainment holders when the actuator is substantially moved in a first direction.

20. The assembly as recited in claim 17, wherein the rocker comprises a rocking stud on a rocker first side;

and at least first and second contact portions on a rocker second side; and

wherein the rocking stud and the first and second contact portions are configured to pivot the rocker in three dimensions about one or more instruments to be retained or a portion of the floating seat.

21. A drive and trajectory guide assembly including the assembly of claim 17 coupled thereto.

22. The assembly as recited in claim 21, wherein the actuator receiving lumen is formed in a first stage of the drive and trajectory guide assembly.

23. A method of using an assembly for retaining a plurality of surgical instruments, the method comprising:

providing a floating seat including a seat first side and a seat second side, the seat first side positioned opposite the seat second side;

providing a first clamp member positioned adjacent the seat first side and a floating second clamp member positioned adjacent the seat second side;

providing a collar substantially surrounding a portion of the floating seat and the floating second clamp member;

providing an actuator disposed near the second clamp member;

disposing at least a first instrument along the seat first side;

disposing at least a second instrument along the seat second side;

moving the actuator in a first direction to advance the first clamp member, the floating seat, and the floating second clamp member toward one another, to move the seat first side toward the first clamp member to retain the first instrument against the seat first side, and to move the second clamp member toward the seat second side to retain the second instrument against the seat second side.

24. The method as recited in claim 23, wherein disposing the second instrument along the seat second side includes disposing the second instrument in a position opposite the a position of the first instrument.

25. The method as recited in claim 23, wherein disposing the first instrument and the second instrument includes disposing the first instrument and the second instrument along one or more seat recessed portions.

26. The method as recited in claim 23, claim wherein moving the actuator includes rotating a screw.

27. The method as recited in claim 23, further comprising disposing at least a third instrument along a recessed portion of the seat second side.

28. The method as recited in claim 27, further comprising disposing a fourth instrument along another recessed portion of the seat second side, and disposing a fifth instrument along a recessed portion of the seat first side;

and

wherein moving the actuator includes retaining the first and fifth instruments against the seat first side, and wherein moving the actuator includes retaining the second, third, and fourth instruments against the seat second side.

29. The method as recited in claim 23, wherein moving the actuator includes pivoting the seat about at least the first instrument.

30. The method as recited in claim 23, wherein moving the actuator includes pivoting the second clamp member about at least the second instrument or seat second side.

31. An assembly for retaining a plurality of surgical instruments, the assembly comprising:

a collar having a first clamp member, the collar being ring-shaped so as to define an opening;

a seat moveably disposed in the opening of the collar, the seat including a seat first side and a seat second side, the seat first side positioned opposite the seat second side, the seat first side positioned adjacent the first clamp member, the seat first side and the seat second side each including a recessed portion able to receive at least one of the plurality of surgical instruments;

a second clamp member moveably disposed in the opening of the collar, the second clamp member positioned adjacent the seat second side, the second clamp member including a rocker that pivots the second clamp member relative to the seat; and

a threaded screw that is threadably received within a threaded lumen in the collar, wherein movement of the actuator in a first direction moves the seat first side toward the first clamp member, moves the second clamp member toward the seat second side, and pivots the second clamp member relative to the seat to retain the plurality of instruments in the recessed portions.

32. The assembly as recited in claim 31, wherein the rocker includes a rocker first side facing the threaded screw, the rocker first side including a rocking stud, the rocker also including a rocker second side facing the seat second side, the rocker second side including at least first and second contact portions, and wherein the rocking stud and the first and second contact portions are configured to allow the rocker to pivot in three dimensions.