Sterile implant instruments and kits for flexible joint implants

Patent metadata

Field	Value
Publication number	US-12023259-B2
Application number	US-201615547391-A
Country	US
Kind code	B2
Filing date	Mar 18, 2016
Priority date	Mar 19, 2015
Publication date	Jul 2, 2024
Grant date	Jul 2, 2024

Abstract

Disclosed are sterile instruments and instrument kits for use in surgery, said instruments including a reamer assembly comprising a reamer depth stop and a reamer, a grommet placer instrument, and a sizing instrument for use in joint implant surgery. The invention also concerns a kit for use in joint implant surgery, comprising said reamer assembly, said grommet placer instrument, a wire guide, comprising a wire guide body, and a guide wire. A method for using one or more of the instruments and kit as described herein is also provided.

First claim

What is claimed is:

1. A kit for use in joint implant surgery, comprising:
a reamer comprising:
a reamer shaft comprising a proximal end and a distal end;
a cutting tip located at the distal end of the reamer shaft;
a hollow channel within and extending through the cutting tip and the reamer shaft configured to receive a guide wire, and at least two grooves located on the reamer shaft, representing a proximal stop position and a distal stop position wherein at least two flexible tongs are configured to snap in place at the proximal stop position and then the distal stop position when a reamer depth stop is slid on to the reamer in a direction from the proximal end to the distal end;
wherein spring action enables the reamer depth stop to click into place in the proximal stop position or the distal stop position;
wherein each of the at least two flexible tongs comprise a shape configured to:
discourage slippage out of the proximal stop position and the distal stop position when pushed toward the proximal end of the reamer; and
allow release from the proximal stop position and the distal stop position when the reamer stop is pushed towards the distal tip of the reamer;
the reamer comprising an indent and a flattened portion located near the proximal end of the reamer, said indent and flattened portion configured and shaped to facilitate quick connect attachment to a driving tool;
a grommet placer instrument, comprising:
a grommet placer shaft comprising a proximal end and a distal end;
a grommet placer head located on the proximal end of the grommet placer shaft; and
at least two flexible split shafts located on the distal end of the grommet placer shaft;
a wire guide, comprising a wire guide body, a proximal guide located on a first end of the wire guide body, and a distal guide located on a second end of the wire guide body, wherein the first and second ends are opposite ends of the wire guide body;
a broach comprising a guide tip and a cutting ring provided adjacent a broach stop;
the broach comprising a site guide that indicates an orientation, so as to maintain orientation of the broach during impaction;
wherein the broach stop is configured to stop the cutting ring;
wherein the guide wire comprises an elongated guide wire body and a needle head located on one end of the elongated guide wire body; and
a sizing instrument provided in a separate sterile package.

2. The kit of claim 1 , further comprising a joint implant, wherein the joint implant is provided in a separate sterile package.

3. The kit of claim 1 , further comprising a grommet impactor.

4. The kit of claim 1 , further comprising a grommet clip extending from each of the at least two flexible split shafts.

5. The kit of claim 4 , wherein one or more grommet stops are shaped and configured to prevent a grommet placed on the grommet placer instrument from sliding proximally on the grommet placer shaft; and
wherein the grommet clips are shaped and configured to prevent the grommet from falling off tips of the grommet placer.

Assignees

• In2Bones Usa Llc

Inventors

• Wahl Rebecca H
• Chambers Casey

Classifications

• A61B17/1782

  for the hand or wrist · CPC title

• A61B17/1775

  for the foot or ankle · CPC title

• A61B17/1686

  for the hand or wrist · CPC title

• A61B17/1682

  for the foot or ankle · CPC title

• A61B17/162 Primary

  Chucks or tool parts which are to be held in a chuck · CPC title