K-wire implants for fractures

Patent metadata

Field	Value
Publication number	US-11633221-B2
Application number	US-202117327132-A
Country	US
Kind code	B2
Filing date	May 21, 2021
Priority date	May 29, 2020
Publication date	Apr 25, 2023
Grant date	Apr 25, 2023

Abstract

A variety of K-wires with imbedded plates are disclosed that allow for the plate in K-wire to be secured to the bone after insertion. Further, a donut shaped washer for capturing and securing the K-wire is disclosed. Also, a screw with a channel is disclosed that has a head shaped to capture and secure the K-wire. Finally, embodiments of a slotted washer are disclosed that captures and secures the K-wire.

First claim

What is claimed is:

1. A method for implanting a K-wire wherein the K-wire comprises:
a plate with a first screw hole;
a driver pin attached to a first end of the plate; and
an implant pin attached to a second end of the plate,
wherein the driver pin and implant pin are substantially colinear;

wherein the method comprises:
reducing a bone fragment to a native bone;
driving the K-wire through the bone fragment into the native bone;
backing the K-wire out of the bone fragment;
bending the K-wire to conform to the native bone so that the plate is flush to the native bone;
pushing the bent K-wire back into the bone fragment;
cutting off the driver pin; and
inserting a screw in the first screw hole to secure the plate and the K-wire to the native bone.

2. The method of claim 1 , wherein the diameter of the driver pin is greater than the diameter of the implant pin.

3. The method of claim 1 , wherein the first screw hole is configured to accept a locking screw.

4. The method of claim 1 , wherein the first screw hole is configured to accept a variable angle screw.

5. The method of claim 1 , wherein the plate has a second screw hole.

6. A method for implanting a K-wire wherein the K-wire comprises:
a plate with a first screw hole;
a driver tab attached to a first end of the plate and two implant pins attached to a second end of the plate,
wherein in the two implant pins are substantially parallel;

wherein the method comprises:
reducing a bone fragment to a native bone;
drilling two holes through the bone fragment into the native bone;
driving the K-wire into the two holes
backing the K-wire out of the bone fragment;
bending the K-wire to conform to the native bone so that the plate is flush to the native bone;
pushing the bent K-wire back into the bone fragment; and
inserting a screw in the first screw hole to secure the plate and the K-wire to the native bone.

7. The method of claim 6 , wherein the first screw hole is configured to accept a locking screw.

8. The method of claim 6 , wherein the first screw hole is configured to accept a variable angle screw.

9. The method of claim 6 , wherein the plate has a second screw hole.

10. A method for implanting a K-wire wherein the K-wire comprises:
a plate with a first screw hole;
a driver tab attached to a first end of the plate and
two implant pins attached to a second end of the plate,
wherein the two implant pins are substantially parallel, and
wherein the two implant pins are different lengths;

wherein the method comprises:
reducing a bone fragment to a native bone;
drilling a first hole through the bone fragment into the native bone with a generic K-wire;
drilling a second hole through the bone fragment into the native bone with the generic K-wire;
driving the longer implant pin into the first hole to engage the native bone;
removing the generic K-wire from the second hole;
aligning the shorter implant pin with the second hole;
inserting the shorter implant pin in the second hole;
backing the K-wire out of the bone fragment;
bending the K-wire to conform to the native bone so that the plate is flush to the native bone;
pushing the bent K-wire back into the bone fragment; and
inserting a screw in the first screw hole to secure the plate and the K-wire to the native bone.

Assignees

• Depuy Synthes Products Inc

Inventors

• Watt Phillip
• Smith Kory
• Loftus-Vergari Jeffrey
• Rossi Danielle

Classifications

• A61B17/8695

  Washers (surrounding screw head in plate hole A61B17/8047, between bone plate and bone A61B17/8028) · CPC title

• A61B17/7233 Primary

  with special means of locking the nail to the bone · CPC title

• A61B17/861

  specially shaped for gripping driver · CPC title

• A61B2017/564

  Methods for bone or joint treatment · CPC title

• A61B17/848

  Kirschner wires, i.e. thin, long nails · CPC title