Plate to nail alignment pin/k-wire

Patent metadata

Field	Value
Publication number	US-12426901-B2
Application number	US-202318522638-A
Country	US
Kind code	B2
Filing date	Nov 29, 2023
Priority date	Nov 29, 2022
Publication date	Sep 30, 2025
Grant date	Sep 30, 2025

Abstract

A method for aligning an aiming block with respect to a bone includes driving a bone screw into a bone to pass a tip of the bone screw through a hole of an intramedullary nail and to anchor a head of the bone screw in a cortical region of the bone; inserting a pin extending from a surface of an aiming block through a hole of a bone plate; and contacting the pin against the head of the bone screw to align the hole of the bone plate with the head of the bone screw.

First claim

The invention claimed is:

1. A method for aligning an aiming block with respect to a bone comprising:
driving a bone screw into a bone to pass a tip of the bone screw through a hole of an intramedullary nail and to anchor a head of the bone screw in a cortical region of the bone;
inserting a pin extending from a surface of an aiming block through a hole of a bone plate; and
contacting the pin against the head of the bone screw to align the hole of the bone plate with the head of the bone screw.

2. The method of claim 1 , further comprising inserting the intramedullary nail into a medullary canal of a bone.

3. The method of claim 1 , wherein the contacting step includes inserting the pin into a recess within the head of the bone screw.

4. The method of claim 2 , wherein the contacting step further comprises pressing the pin partially into the aiming block by compressing a spring disposed between the pin and aiming block.

5. The method of claim 1 , further comprising driving a second bone screw into the bone to pass a tip of the second bone screw through a second hole of the intramedullary nail and to anchor a head of the second bone screw in the cortical region of the bone.

6. The method of claim 5 , further comprising inserting a second pin extending from the surface of the aiming block through a second hole of the bone plate.

7. The method of claim 6 , wherein the contacting step includes placing the pin against the head of the bone screw and the second pin against the head of the second bone screw.

8. The method of claim 1 , wherein the driving step includes driving the head of the bone screw into a countersunk recess within the bone.

9. A method of aligning an aiming block with respect to a bone comprising:
drilling a hole in a cortical region of a bone;
inserting a pin extending from a surface of an aiming block through a hole of a bone plate; and
locating the pin within the hole in the cortical region of the bone.

10. The method of claim 9 , further comprising inserting an intramedullary nail into a medullary canal of the bone.

11. The method of claim 10 , wherein the locating step includes locating the pin such that a central longitudinal axis of the pin aligns with a central longitudinal axis of a hole of the intramedullary nail.

12. The method of claim 10 , further comprising removing the bone plate and the aiming block from the bone.

13. The method of claim 12 , further comprising inserting a bone screw through the bone such that a head of the bone screw sits in a recess formed by the pin and a tip of the bone screw extends through the hole of the intramedullary nail.

14. The method of claim 13 , further comprising placing the bone plate over the bone such that the head of the bone screw sits beneath the hole of the bone plate.

15. A method for aligning an aiming block with respect to a bone comprising:
inserting an intramedullary nail into a medullary canal of a bone;
inserting a k-wire into the bone and through a hole of the intramedullary nail;
placing a hole of a bone plate and an aligned hole extending through an aiming block over an end of the k-wire; and
guiding the bone plate and the aiming block along the k-wire to contact an inner surface of the bone plate to the bone.

16. The method of claim 15 , further comprising inserting a second k-wire into the bone and through a second hole of the intramedullary nail.

17. The method of claim 16 , wherein the placing step further comprises placing a second hole of the bone plate and an aligned second hole extending through the aiming block over an end of the second k-wire.

18. The method of claim 17 , wherein the guiding step includes guiding the bone plate and the aiming block along the k-wire and the second k-wire to contact the inner surface of the bone plate to the bone.

19. The method of claim 15 , further comprising inserting a cannulated bone screw into the bone to pass a tip of the cannulated bone screw through the hole of the intramedullary nail and to anchor a head of the cannulated bone screw into a cortical region of the bone.

20. The method of claim 19 , wherein the step of inserting the k-wire includes inserting the k-wire through the cannulated bone screw.

Assignees

• Stryker European Operations Ltd

Inventors

• Zander Nils
• Wieland Manfred
• Kluever Hendrik

Classifications

• A61B17/1796

  for holes for sutures or flexible wires · CPC title

• A61B2017/564

  Methods for bone or joint treatment · CPC title

• A61B17/86

  Pins or screws {or threaded wires; nuts therefor (A61B17/72 take precedence)} · CPC title

• A61B17/725

  with locking pins or screws of special form · CPC title

• A61B17/72

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