Surgical instrument system and method

Patent metadata

Field	Value
Publication number	US-9681961-B2
Application number	US-201414450038-A
Country	US
Kind code	B2
Filing date	Aug 1, 2014
Priority date	Aug 1, 2014
Publication date	Jun 20, 2017
Grant date	Jun 20, 2017

Abstract

A surgical instrument includes a body extending between a first end and a second end and includes at least one mating element engageable with an interbody implant. A first member is disposed with the body and engageable with the interbody implant to move the interbody implant between a first configuration and a second, expanded configuration. A second member is disposed with the body and engageable with the interbody implant to fix the interbody implant in a selected second configuration. Systems and methods are disclosed.

First claim

What is claimed is:

1. A surgical instrument comprising:
a body extending between a first end and a second end including at least one mating element engageable with an interbody implant, the body comprising a first extension having a first slot and a second extension having a second slot;
a first member disposed within the first extension and engageable with the interbody implant to move the interbody implant between a first configuration and a second, expanded configuration;
a second member disposed within the second extension and engageable with the interbody implant to fix the interbody implant in the second configuration; and
a slider that is movable along the body between a first orientation in which prongs of the slider are disposed in the slots and the first extension is fixed relative to the second extension and a second orientation in which the prongs are disengaged from the slots and the first extension is movable relative the second extension.

2. A surgical instrument as recited in claim 1 , wherein the body includes a handle and a sleeve that defines at least one inner cavity for disposal of at least a portion of each of the members.

3. A surgical instrument as recited in claim 1 , wherein the at least one mating element includes two bilateral tabs.

4. A surgical instrument as recited in claim 1 , wherein the at least one mating element includes four tabs.

5. A surgical instrument as recited in claim 4 , wherein the four tabs are disposed about the second member.

6. A surgical instrument as recited in claim 1 , wherein the first member includes a pinion gear shaft engageable with teeth of the interbody implant.

7. A surgical instrument as recited in claim 1 , wherein the first member includes a rotatable handle.

8. A surgical instrument as recited in claim 1 , wherein the first member includes a handle comprising a provisional lock.

9. A surgical instrument as recited in claim 1 , wherein the second member includes a driver engageable with a set screw of the interbody implant.

10. A surgical instrument as recited in claim 1 , wherein the second member includes a rotatable handle.

11. A surgical instrument as recited in claim 1 , wherein the at least one mating element is biased from an expanded configuration to a mating configuration.

12. A surgical instrument as recited in claim 1 , wherein the second member is engageable with the at least one mating element to fix the interbody implant in the second configuration.

13. A surgical implant system comprising:
a body extending between a first end and a second end engageable with an interbody implant, the body comprising a first extension having a first slot and a second extension having a second slot, the interbody implant comprising a first part including a wall that defines an axial cavity and at least one lateral opening configured for disposal of the at least one mating element and a second part configured for disposal with the axial cavity and including a wall having an axial surface disposed along a thickness thereof, the axial surface defining at least a portion of an axial opening and including a plurality of gear teeth disposed therealong, wherein the first part is engageable with the teeth to axially translate the second part of the implant relative to the first part;
a first member disposed within the first extension and engageable with the first part to move the interbody implant between a first configuration and a second, expanded configuration;
a second member disposed within the second extension and engageable with the interbody implant to fix the interbody implant in the second configuration; and
a slider that is movable along the body between a first orientation in which prongs of the slider are disposed in the slots and the first extension is fixed relative to the second extension and a second orientation in which the prongs are disengaged from the slots and the first extension is movable relative the second extension.

14. A surgical instrument as recited in claim 13 , wherein the second end includes at least one mating element engageable with the first part.

15. A surgical instrument as recited in claim 14 , wherein the at least one mating element includes four tabs disposed about the second member.

16. A surgical instrument as recited in claim 13 , wherein the first member includes a pinion gear shaft engageable with teeth of the interbody implant.

17. A surgical instrument as recited in claim 13 , wherein the first member includes a rotatable handle.

18. A surgical instrument as recited in claim 13 , wherein the second member includes a driver engageable with a set screw of the interbody implant.

19. A surgical instrument as recited in claim 13 , wherein the second end includes at least one mating element engageable with the first part, the at least one mating element being biased from an expanded configuration to a mating configuration.

20. A surgical implant system comprising:
a body extending between a first end and a second end including at least one tab engageable with an interbody implant, the body comprising a first extension having a first slot and a second extension having a second slot, the interbody implant comprising:
a first part defining a longitudinal axis and including a wall that defines an axial cavity and at least one lateral opening configured for disposal of the at least one tab; and
a second part configured for disposal with the axial cavity and including a wall having an axial surface disposed along a thickness thereof, the axial surface defining at least a portion of an axial opening and including a plurality of gear teeth disposed therealong, wherein the first part is engageable with the teeth to axially translate the second part relative to the first part,

a first member disposed within the first extension and engageable with the gear teeth to move the implant between a first configuration and a second, expanded configuration;
a second member disposed within the second extension and engageable with a set screw to fix the implant in the second configuration; and
a slider that is movable along the body between a first orientation in which prongs of the slider are disposed in the slots and the first extension is fixed relative to the second extension and a second orientation in which the prongs are disengaged from the slots and the first extension is movable relative the second extension.

Assignees

• Warsaw Orthopedic Inc

Inventors

• Prevost Julien J
• Browning David
• Mills Aubrey R
• Potts Eric A

Classifications

• A61F2/4637

  for connecting or disconnecting two parts of a prosthesis · CPC title

• A61F2002/30601

  telescopic · CPC title

• A61F2/4611 Primary

  of spinal prostheses · CPC title

• A61F2002/30617

  Visible markings for adjusting, locating or measuring · CPC title

• A61F2002/4627

  with linear motion along or rotating motion about the instrument axis or the implantation direction, e.g. telescopic, along a guiding rod, screwing inside the instrument · CPC title