Distal radius nail

Patent metadata

Field	Value
Publication number	US-10251682-B2
Application number	US-201715466105-A
Country	US
Kind code	B2
Filing date	Mar 22, 2017
Priority date	Mar 22, 2017
Publication date	Apr 9, 2019
Grant date	Apr 9, 2019

Abstract

A system for treating a bone fracture includes an intramedullary nail sized and shaped to be inserted through a medullary canal of a bone to extend across a fracture site of the bone, the intramedullary device extending from a first end to a second end and including a plurality of openings extending laterally therethrough, the openings sized and shaped to receive bone fixation elements therethrough, and an insertion device including a base portion and a handle portion extending therefrom, the base portion integrally formed with the intramedullary nail and connected thereto via a plurality of connection points which, when a force is exerted thereon, break to disconnect the insertion device from the intramedullary nail, the base portion including a plurality of guide channels extending therethrough, each of the guide channels being aligned with a corresponding one of the openings of the intramedullary nail.

First claim

What is claimed is:

1. A system for treating a bone fracture, comprising:
an intramedullary nail sized and shaped to be inserted through a medullary canal of a bone to extend across a fracture site of the bone, the intramedullary device extending from a first end including a head portion to a second end, a shaft of the intramedullary device extending from the head portion to the second end, the intramedullary device including a plurality of openings extending laterally therethrough, the openings sized and shaped to receive bone fixation elements therethrough; and
an insertion device including a base portion and a handle portion extending therefrom, the base portion formed as a single piece with the intramedullary nail and connected to the intramedullary nail via a plurality of connection points which, when a force is exerted thereon, break to disconnect the insertion device from the intramedullary nail, the base portion including a plurality of guide channels extending therethrough, each of the guide channels being aligned with a corresponding one of the openings of the intramedullary nail.

2. The system of claim 1 , further comprising drill guides inserted through the guide channels of the insertion device and the corresponding openings of the intramedullary nail to provide further stability between the insertion device and the intramedullary nail.

3. The system of claim 1 , wherein a nail facing surface of the base portion is separated from an insertion device facing surface at the first end of the intramedullary nail via a distance.

4. The system of claim 3 , wherein the connection points extend from an outermost edge of the insertion device facing surface to the base portion.

5. The system of claim 3 , wherein the connection points and the distance between the insertion device facing surface and the nail facing surface are defined via a notch extending between the base portion of the insertion device and the head portion of the intramedullary nail.

6. The system of claim 5 , wherein the notch is sized and shaped to facilitate breakage of the connection points at a specific point therealong.

7. The system of claim 1 , wherein the system includes two or three connection points.

8. The system of claim 1 , wherein the system is molded via a PEEK material.

9. The system of claim 1 , wherein the shaft is formed of a wire extending from the head portion toward the second end.

10. The system of claim 9 , wherein the wire is formed of stainless steel.

11. The system of claim 9 , wherein the wire is coated with a PEEK material.

12. The system of claim 1 , wherein a first one of the openings and a second one of the openings extend through the head portion of the intramedullary nail along axes that are angled with respect to one another so that, when bone fixation elements are inserted through the first and second openings, the intramedullary nail is fixed relative to the bone.

13. The system of claim 1 , wherein a third one of the openings extends through the intramedullary nail such that, when a bone fixation element is inserted along an axis thereof, the bone fixation element extends across a bone fracture to provide further stability to the fracture site.

14. The system of claim 1 , wherein the shaft portion extends along a curve.

Assignees

• Depuy Synthes Products Inc

Inventors

• Schumacher Yvonne
• Frigg Robert
• Niederberger Alfred
• Fluri Daniel
• Appenzeller Andreas
• Spörri Beat

Classifications

• A61B17/16

  Instruments for performing osteoclasis; Drills or chisels for bones; Trepans {(arthroscopic bone cutters A61B17/320016)} · CPC title

• A61B2090/037

  with a frangible part, e.g. by reduced diameter · CPC title

• A61B17/72 Primary

  Intramedullary devices, e.g. pins or nails · CPC title

• A61B17/88

  Osteosynthesis instruments;} Methods or means for implanting or extracting internal {or external} fixation devices {(A61B17/7074 takes precedence) · CPC title

• A61B17/1725

  for applying transverse screws or pins through intramedullary nails or pins · CPC title