SURGICAL INSTRUMENT AND METHOD

• US 20140100616A1
• Filed: 10/09/2012
• Published: 04/10/2014
• Est. Priority Date: 10/09/2012
• Status: Active Grant

• Current Assignee: Warsaw Orthopedic Incorporated (Medtronic Plc)
• Original Assignee: Warsaw Orthopedic Incorporated (Medtronic Plc)
• Inventors: Shipp, Kenneth
• Granted Patent: US 9,572,605 B2
• Time in Patent Office: Days
• US Class Current: 606/86.A
• CPC Class Codes: A61B 17/7076 for driving, positioning or assembling spinal clamps or bone anchors specially adapted for spinal fixation
• CPC Class Codes: A61B 17/7082 for driving, i.e. rotating, screws or screw parts specially adapted for spinal fixation, e.g. for driving polyaxial or tulip-headed screws driving other bone screws A61B17/8875
• CPC Class Codes: A61B 17/8875 Screwdrivers, spanners or wrenches
• CPC Class Codes: A61B 17/8877 characterised by the cross-section of the driver bit
• CPC Class Codes: A61B 17/888 the driver bit acting on the central region of the screw head
• CPC Class Codes: A61B 17/8883 the driver bit acting on the periphery of the screw head
• CPC Class Codes: A61B 17/8886 holding the screw head
• CPC Class Codes: A61B 17/8888 at its central region
• CPC Class Codes: A61B 17/8891 at its periphery
• CPC Class Codes: A61B 17/8894 holding the implant into or through which the screw is to be inserted A61B17/7082, A61B17/7091 take precedence

Abstract

A surgical instrument includes a first member including an inner surface defining a passageway. The first member extends between a first end that defines a first opening and a second end that defines a second opening. A second member extends between a first end and a second end. A third member extends between a first end and a second end. The second end of the third member is releasably engageable with the first end of the second member within the passageway such that the first end of the first member prevents passage of the first end of the third member through the first opening and the second end of the first member prevents passage of the second end of the second member through the second opening. Systems and methods of use are disclosed.

Claims

1. A surgical instrument comprising:

a first member including an inner surface defining a passageway and extending between a first end that defines a first opening and a second end that defines a second opening;

a second member extending between a first end and a second end; and

a third member extending between a first end and a second end,

wherein the second end of the third member is releasably engageable with the first end of the second member within the passageway such that the first end of the first member prevents passage of the first end of the third member through the first opening and the second end of the first member prevents passage of the second end of the second member through the second opening.

2. A surgical instrument as recited in claim 1, wherein the first end of the first member includes an enlarged outer surface and a distal face configured for engagement with the first end of the third member.

3. A surgical instrument as recited in claim 1, wherein the second end of the first member includes an enlarged outer surface and a proximal face configured for engagement with the second end of the third member.

4. A surgical instrument as recited in claim 1, wherein the second end of the third member is releasably engageable with the first end of the second member such that the members are disposed in coaxial alignment.

5. A surgical instrument as recited in claim 1, wherein the second member includes a cap disposed between the first and second ends of the second member and configured to engage the second opening to prevent axial translation of the second member relative to the first member.

6. A surgical instrument as recited in claim 1, wherein the first end of the third member is configured to engage an implant.

7. A surgical instrument as recited in claim 1, wherein the second end of the second member is configured to engage an actuator.

8. A surgical instrument as recited in claim 1, wherein the first end of the third member includes a T-bar configuration.

9. A surgical instrument as recited in claim 1, wherein the first end of the second member includes an inner surface defining a collar and the second end of the third member includes a hexalobular driver configured to engage the collar.

10. A surgical instrument as recited in claim 1, wherein the first end of the second member includes fingers that define an inner surface configured for disposal of the second end of the third member to prevent rotation of the second member relative to the third member.

11. A surgical instrument as recited in claim 1, wherein the first end of the second member includes an inner surface defining a socket and the second end of the third member includes splines engageable with the socket to prevent rotation of the third member relative to the second member.

12. A surgical instrument as recited in claim 1, wherein the second and third members are configured for rotation relative to the first member.

18. A surgical instrument as recited in claim 1, wherein the implant driver includes a T-bar configuration.

19. A surgical instrument as recited in claim 1, wherein the collar defines a socket and the drive element includes splines engageable with the socket to prevent rotation of the driver relative to the shaft.

13. A surgical instrument comprising:

a sleeve including an inner surface defining a passageway and extending between a first end that defines a first opening and a second end that defines a second opening;

a shaft extending between a collar and a cap; and

a driver extending between an implant driver and a drive element,

wherein the drive element is releasably engageable with the collar within the passageway such that the first end of the sleeve prevents passage of the implant driver through the first opening and the second end of the sleeve prevents passage of the cap through the second opening.

14. A surgical instrument as recited in claim 13, wherein the first end of the sleeve includes an enlarged outer surface and a distal face configured for engagement with the implant driver.

15. A surgical instrument as recited in claim 13, wherein the second end of the sleeve includes an enlarged outer surface and a proximal face configured for engagement with the drive element.

16. A surgical instrument as recited in claim 13, wherein the drive element is releasably engageable with the collar such that the members are disposed in coaxial alignment.

17. A surgical instrument as recited in claim 13, wherein the cap is configured to engage the second opening to prevent axial translation of the shaft relative to the driver.

20. A surgical instrument comprising:

a sleeve including an inner surface defining a passageway and extending between a first end that defines a first opening and a second end that defines a second opening, the first end of the sleeve including an enlarged outer surface and a distal face, the second end of the sleeve including an enlarged outer surface and a proximal face;

a shaft extending between a collar and a cap, the collar defining a socket; and

a driver extending between an implant driver and a drive element, the implant driver having a T-bar configuration configured to engage an implant, the implant driver being configured for engagement with the distal face, the drive element including a hexalobular driver configured for engagement with the proximal face, the drive element including splines engageable with the socket to prevent rotation of the driver relative to the shaft,

wherein the drive element is releasably engageable with the collar within the passageway such that the first end of the sleeve prevents passage of the implant driver through the first opening and the second end of the sleeve prevents passage of the cap through the second opening, wherein the shaft and the driver are configured for rotation relative to the sleeve, and wherein the cap is configured to engage the second opening to prevent axial translation of the shaft relative to the driver.