Bending pin

Patent metadata

Field	Value
Publication number	US-11020162-B2
Application number	US-201815950834-A
Country	US
Kind code	B2
Filing date	Apr 11, 2018
Priority date	Dec 23, 2014
Publication date	Jun 1, 2021
Grant date	Jun 1, 2021

Abstract

A system for bending an implant includes a drill guide extending longitudinally from a proximal end to a distal end, the drill guide including a distal portion having a first threading extending therealong to engage a threading along an interior of a bone fixation element receiving hole of an implant and a proximal portion having a second threading extending therealong and a bending pin extending longitudinally from a proximal end to a distal end including a recess extending proximally therefrom, the recess sized and shaped to receive the proximal portion of the drill guide and including a corresponding threading therealong for engaging the second threading.

First claim

What is claimed is:

1. A method for bending a bone plate, comprising:
engaging a first bending pin with a first drill guide, the first drill guide being threadedly engaged with a first bone fixation element receiving hole of a bone plate, the first bending pin and the first drill guide being threadedly engaged with one another when a distal end of the first bending pin contacts the proximal surface of the bone plate;
engaging a second bending pin with a second drill guide, the second drill guide being threadedly engaged with a second bone fixation element receiving hole of the bone plate, the second bending pin and the second drill guide being threadedly engaged with one another when a distal end of the second bending pin contacts the proximal surface of the bone plate; and
moving the first and second bending pins relative to one another to bend the bone plate toward a desired shape, wherein moving the first and second bending pins relative to one another applies a bending force directly to the proximal surface of the bone plate.

2. The method of claim 1 , wherein engaging the first bending pin with the first drill guide includes receiving a non-threaded portion of the first drill guide within a non-threaded portion of a recess of the first bending pin.

3. The method of claim 1 , wherein engaging the second bending pin with the second drill guide includes receiving a non-threaded portion of the second drill guide within a non-threaded portion of a recess of the second bending pin.

4. The method of claim 1 , wherein each of the first and second bending pins includes a gripping portion at a proximal thereof, each of the gripping portions including knurls gripped to move the first and second bending pins relative to one another.

5. The method of claim 1 , wherein each drill guide includes a channel extending longitudinally therethrough to receive a drill bit therein.

6. The method of claim 1 , wherein the proximal portion of each drill guide includes an external threading configured to engage an internal threading of a corresponding bending pin, the external threading being threadedly engaged with the internal threading when a distal end of the corresponding bending pin contacts the proximal surface of the bone plate.

7. The method of claim 1 , wherein the proximal portion of each drill guide includes an external threading, a length of the external threading being substantially identical to a length of an internal threading of a corresponding bending pin.

8. A method for bending a bone plate, comprising:
engaging a first bending pin with a first drill guide, the first drill guide being pre-assembled with a bone plate so that a distal portion of the first drill guide is threadedly engaged with a first bone fixation element receiving hole of the bone plate and a proximal portion thereof extends proximally from a proximal surface of the bone plate to be engaged by the first bending pin, wherein the first bending pin and the first drill guide are threadedly engaged with one another when a distal end of the first bending pin contacts the proximal surface of the bone plate;
engaging a second bending pin with a second drill guide, the second drill guide pre-assembled with the bone plate so that a distal portion of the second drill guide is threadedly engaged with a second bone fixation element receiving hole of the bone plate and a proximal portion thereof extends proximally from the proximal surface of the bone plate to be engaged by the second bending pin, wherein the second bending pin and the second drill guide are threadedly engaged with one another when a distal end of the second bending pin contacts the proximal surface of the bone plate; and
moving the first and second bending pins relative to one another to bend the bone plate toward a desired shape, wherein moving the first and second bending pins relative to one another applies a bending force directly to the proximal surface of the bone plate.

9. The method of claim 8 , wherein each of the first and second bending pins includes a non-threaded portion extending between proximal and distal portions thereof.

10. The method of claim 8 , wherein each of the first and second bending pins includes a recess.

11. The method of claim 10 , wherein the recess of each bending pin includes a non-threaded portion at the distal end thereof.

12. The method of claim 11 , wherein engaging the first bending pin with the first drill guide includes receiving a non-threaded portion of the first drill guide within a non-threaded portion of the recess of the first bending pin.

13. The method of claim 11 , wherein engaging the second bending pin with the second drill guide includes receiving a non-threaded portion of the second drill guide within a non-threaded portion of the recess of the second bending pin.

14. The method of claim 8 , wherein each of the first and second bending pins includes a gripping portion at a proximal end thereof, each of the gripping portions including knurls gripped to move the first and second bending pins relative to one another.

15. The method of claim 8 , wherein each drill guide includes a channel extending longitudinally therethrough to receive a drill bit therein.

16. The method of claim 8 , wherein the proximal portion of each drill guide includes a pair of flat surfaces extending along a length thereof, the flat surfaces of each of the pair of flat surfaces being diametrically opposed from one another.

17. The method of claim 8 , wherein the proximal portion of each drill guide includes an external threading configured to engage an internal threading of a corresponding bending pin, the external threading being threadedly engaged with the internal threading when a distal end of the corresponding bending pin contacts the proximal surface of the bone plate.

18. The method of claim 8 , wherein the proximal portion of each drill guide includes an external threading, a length of the external threading being substantially identical to a length of an internal threading of a corresponding bending pin.

19. A method for bending a bone plate, comprising:
inserting first and second drill guides within corresponding bone fixation element receiving holes of an implant, each of the first and second drill guides extending longitudinally from a proximal end to a distal end and including a distal portion having a first threading extending therealong to engage a threading along an interior of the bone fixation element receiving hole and a proximal portion having a second threading extending therealong;
engaging a bending pin with each of the first and second drill guides, each bending pin extending longitudinally from a proximal end to a distal end including a recess extending proximally from the distal end, the recess sized and shaped to receive the proximal portion of one of the first and second drill guides and including a corresponding threading therealong for engaging the second threading, wherein, when the second threading and the corresponding threading engage one another, the distal end of the bending pin contacts a proximal surface of the implant; and
moving the bending pins relative to one another to bend the bone plate toward a desired shape, wherein moving the bending pins relative to one another applies a bending force directly to the proximal surface of the bone plate.

20. The method of claim 19 , wherein engaging a first bending pin with the first drill guide includes receiving a non-threaded portion of the first drill guide within a non-threaded portion of the reces

Assignees

• Depuy Synthes Products Inc

Inventors

• Doudoukjian George
• Mcgurk Michael

Classifications

• A61B17/8057

  the interlocking form comprising a thread · CPC title

• A61B17/8863 Primary

  Apparatus for shaping or cutting osteosynthesis equipment by medical personnel · CPC title

• A61B17/1728

  for holes for bone plates or plate screws · CPC title

• A61B17/8085

  with pliable or malleable elements or having a mesh-like structure, e.g. small strips (A61B17/8071, A61B17/8076 take precedence) · CPC title