Orthopedic implant kit

Patent metadata

Field	Value
Publication number	US-9877753-B2
Application number	US-201615299862-A
Country	US
Kind code	B2
Filing date	Oct 21, 2016
Priority date	Jun 2, 2010
Publication date	Jan 30, 2018
Grant date	Jan 30, 2018

Abstract

An implant kit has an adapter having a first end, a second end, and a longitudinal axis extending from the first and to the second end, wherein the first end is configured for removably receiving and engaging an implant and the second end is configured for removably coupling to a driver shaft of an implant driving tool, and an implant preloaded into the first end of the adapter, the implant having an elongated threaded portion; and a blade portion extending from the elongated threaded portion, and having two serrated edges, wherein the blade portion is received in the first end of the adapter and the elongated threaded portion of the implant is coaxially aligned with the longitudinal axis of the adapter.

First claim

What is claimed is:

1. An implant kit comprising:
an adapter having a first end, a second end, and a longitudinal axis extending from the first and to the second end, wherein the first end is configured for removably receiving and engaging an implant and the second end is configured for removably coupling to a driver shaft of an implant driving tool wherein a slot is provided on the first end in which the blade portion of the implant is received; and
an implant preloaded into the first end of the adapter, said implant comprising:
an elongated threaded portion;
a blade portion extending from the elongated threaded portion, and having two serrated edges, wherein the blade portion includes a plurality of teeth along its serrated edges defining valley portions between the plurality of teeth, wherein the blade portion is received in the first end of the adapter and the elongated threaded portion of the implant is coaxially aligned with the longitudinal axis of the adapter;

wherein a groove is provided on the outer surface of the adapter in proximity to the first end and extending circumferentially around the adapter, wherein the groove is located at a distance from the first end and in alignment with one of the valley portions on the blade, and wherein an elastic O-ring is disposed in the groove and directly engaging the teeth by being positioned within the one of the valley portions and retaining the implant within the slot of the adapter; and
wherein the first end of the adapter comprises a sleeve having a first open end and a second open end with a bore longitudinally extending through the sleeve between the two open ends, and a collet received in the bore, the collet including an implant receiving portion and a threaded portion, the implant receiving portion having an implant-receiving opening, the implant-receiving opening defined by a plurality of collet segments which is defined by slots extending from the implant-receiving end towards the threaded portion.

2. The implant kit of claim 1 , wherein the blade portion of the implant extends from the elongated threaded portion at an angle with respect to the longitudinal axis of the adapter and the slot extends into the adapter at said angle with respect to the longitudinal axis of the adapter.

3. The implant kit of claim 2 , wherein the angle is between zero and 45 degrees.

4. The implant kit of claim 1 , wherein the first end of the adapter comprising:
an adapter body having a first end and a second end;
a slot provided within the adapter body, extending longitudinally therein and open at the first end of the adapter body; and
a bifurcated clip having a stem portion and a pair of bifurcated arms received within the slot wherein the stem portion extends through the second end of the adapter body and the bifurcated clip is slidable within the slot between an extended position and a retracted position, wherein the bifurcated clip is in the retracted position in which the bifurcated arms are in a closed position with the blade portion of the implant received through the slot and being held between the pair of bifurcated arms.

5. The implant kit of claim 4 , wherein the bifurcated clip is spring-biased for keeping the bifurcated clip in the retracted position.

6. The implant kit of claim 5 , wherein the implant can be released by sliding the bifurcated clip to its extended position.

7. The implant kit of claim 4 , wherein the bifurcated clip is thread-biased for keeping the bifurcated clip in the retracted position.

8. The implant kit of claim 7 , wherein the second end of the adapter body comprises a retaining nut that is rotatable about the longitudinal axis, the retaining nut having a threaded bore extending along the longitudinal axis,
wherein the stem portion of the bifurcated clip has a screw threaded portion that extends through the threaded bore of the retaining nut,
whereby the bifurcated clip is moved between the extended position and the retracted position by rotating the retaining nut.

9. The implant kit of claim 1 , wherein the second end of the adapter is provided with a longitudinally extending bore for receiving the driver shaft;
a groove provided in the outer surface of the adapter in proximity to the second end and extending circumferentially around the adapter; and
an elastic O-ring disposed in the groove for coupling the implant kit to the driver shaft when the driver shaft is received in the bore.

10. The implant kit of claim 3 , wherein the driver shaft has an adapter-engaging end and the second end of the adapter comprises:
a longitudinally extending bore for receiving the adapter-engaging end of the driver shaft; and
a pair of opposing tabs for removably coupling the driver shaft to the adapter, the opposing tabs longitudinally extending away from the first end of the adapter.

11. The implant kit of claim 1 , wherein the adapter-engaging end is provided with screw threads and the longitudinally extending bore is tapped with corresponding screw threads whereby the adapter-engaging end and the longitudinally extending bore can be threadably coupled.

12. The implant kit of claim 1 , wherein the adapter-engaging end is magnetized and a magnet is provided within the longitudinally extending bore, whereby the adapter-engaging end and the longitudinally extending bore can be magnetically coupled.

13. The implant kit of claim 1 , wherein the driver shaft has an adapter-engaging end and the second end of the adapter comprises:
a longitudinally extending bore for receiving the adapter-engaging end of the driver shaft; and
an off-set clip cantilevered to the adapter for removably coupling the driver shaft to the adapter, wherein the off-set clip has a deflectable cantilever portion.

14. The implant kit of claim 13 , wherein the off-set clip has a through hole that is in an off-set alignment with the longitudinally extending bore, whereby by deflecting the cantilever portion, the through hole can be brought in linear alignment with the longitudinally extending bore and allow the adapter-engaging end of the driver shaft to be inserted through the through hole and into the longitudinally extending bore.

15. The implant kit of claim 1 , wherein the driver shaft has an adapter-engaging end and the second end of the adapter is configured to removably couple to the adapter-engaging end of the driver shaft by a C-clip.

16. The implant kit of claim 15 , wherein the adapter comprises:
a longitudinally extending bore for receiving the adapter-engaging end of the driver shaft;
a pair of grooves for receiving the C-clip, where one groove is provided on each opposing side of the second end; and
a C-clip for clipping on to the adapter by slidingly engaging the pair of grooves, whereby when the adapter-engaging end of a driver shaft is inserted into the longitudinally extending bore, sliding the C-clip onto the pair of grooves couples the driver shaft to the adapter.

Assignees

• Wright Medical Tech Inc

Inventors

• Thoren Brian
• Luna Ramon
• Petteys Christine
• Woodard Joseph
• Mccormick Daniel
• Wong Kian-Ming (Kevin)

Classifications

• B25B13/5091

  for operating on wing nuts, hooks, eye hooks or the like · CPC title

• A61F2002/4228

  for interphalangeal joints, i.e. IP joints · CPC title

• A61B17/8886

  holding the screw head · CPC title

• A61B17/862

  at the periphery of the screw head · CPC title

• A61B17/8891

  at its periphery · CPC title