Bone sliver removal system

Patent metadata

Field	Value
Publication number	US-12408965-B2
Application number	US-202218058889-A
Country	US
Kind code	B2
Filing date	Nov 28, 2022
Priority date	Dec 1, 2021
Publication date	Sep 9, 2025
Grant date	Sep 9, 2025

Abstract

A surgical tool and related methods are provided for removal of a bone sliver from a resected joint. The tool can include a housing including an upper end, a lower end, and a channel extending from the upper end to the lower end. A paddle member extends from the lower end of the housing. The paddle member includes a paddle shaft and a paddle head. The surgical tool further includes an insertion member that has a handle end, an extension that extends from the handle end, and a cutting tip. The extension is translatable within the channel such that the handle end and the cutting tip can move relative to the housing between a retracted position and an advanced position.

First claim

What is claimed is:

1. A method of correcting alignment between a first and second bones across a joint, the method comprising the steps of:
cutting the first bone so as to define a first end portion and a remaining bone portion of the first bone separated from each other by a resection cut, wherein the first end portion faces the joint;
driving a paddle member of a removal tool along a direction of insertion into the joint between the first end portion and the second bone, such that a paddle head of the paddle member faces the first end portion;
driving an insertion member of the removal tool along the direction of insertion into the resection cut, such that the first end portion is captured between the insertion member and the paddle head; and
removing the first end portion from the joint while the first end portion is captured between the insertion member and the paddle head.

2. The method of claim 1 , wherein the step of driving the insertion member causes retention features of the paddle member to bear against the first end portion.

3. The method of claim 2 , wherein the retention features extend in a direction opposite the insertion direction as they project out from a surface of the paddle member.

4. The method of claim 3 , wherein the insertion member comprises an extension that is spaced from the paddle head along a second direction that is less than a thickness of the first end portion, and the insertion member defines a blade having a bevel that extends to a tip, such that the tip is spaced from the paddle a distance that is greater than the thickness of the first end portion, wherein the second direction is perpendicular to the insertion direction.

5. The method of claim 4 , wherein one of the insertion member and the paddle member is flexible so as to provide a normal retention force against the first end portion.

6. The method of claim 1 , wherein the step of driving the insertion member comprises causing a cutting tip of the insertion member travel past the paddle head.

7. The method of claim 6 , wherein the step of driving the insertion member causes the cutting tip to sever a soft tissue attachment that is connected to the first end portion and the second bone.

8. The method of claim 6 , wherein the soft tissue comprises a plantar tarsometatarsal ligament, and the joint is a TMT joint.

9. The method of claim 1 , wherein the step of driving the insertion member comprises causing a cutting tip of the insertion member to completely separate the first end portion from the remaining portion of the first bone, such that the first end portion defines a first bone sliver.

10. The method of claim 1 , wherein the first end portion is completely separated from the remaining portion of the first bone, such that the first end portion defines a first bone sliver.

11. The method of claim 1 , wherein the step of driving the insertion member comprises driving an extension of the insertion member through a channel of a housing that also receives the paddle member.

12. The method of claim 11 , wherein the step of driving the insertion member comprises engaging a handle with a thumb, grasping the housing member with one or more fingers, and driving the handle in the insertion direction so as to drive the extension in the insertion direction, wherein the extension extends from the handle.

13. The method of claim 1 , further comprising the steps of driving at least one K-wire into the first bone, driving at least one K-wire into the second bone, and inserting a correction guide over the K-wires after cutting the first and second bones, thereby repositioning the first bone with respect to the second bone.

14. The method of claim 13 , wherein the first bone is a metatarsal bone, the second bone is a cuneiform, and the joint is a TMT joint.

15. A bone removal tool comprising:
a housing including an upper end, a lower end opposite the upper end in a downward direction, and a channel extending from the upper end to the lower end;
a paddle member extending from the lower end of the housing, the paddle member including a paddle shaft and a paddle head; and
an insertion member translatably received within the channel, such that the insertion member is translatable in the downward direction with respect to the paddle member from a retracted position to an advanced position.

16. The bone removal tool of claim 15 , wherein the paddle head defines a surface that faces the insertion member when the insertion member is in the advanced position, and the head comprises a plurality of retention features that extend from the surface toward the insertion member.

17. The bone removal tool of claim 16 , wherein the retention features extend in an upward direction opposite the downward direction as they extend away from the surface of the paddle head.

18. The bone removal tool of claim 15 , wherein the insertion member comprises a handle and an extension that extends from the handle, wherein the insertion member is translatable in the downward direction until the handle is received by a concave surface of the housing.

19. The bone removal tool of claim 15 , wherein the extension is oriented substantially parallel with the paddle shaft.

20. The bone removal tool of claim 15 , wherein the insertion member includes a cutting tip that is offset from the paddle head in the downward direction when the insertion member is in the advanced position.

Assignees

• Crossroads Extremity Systems Llc

Inventors

• Sayger Daniel

Classifications

• A61B2017/565

  for surgical correction of axial deviation, e.g. hallux valgus or genu valgus · CPC title

• A61B17/152

  for removing a wedge-shaped piece of bone · CPC title

• A61B17/1682

  for the foot or ankle · CPC title

• A61B17/1604

  Chisels; Rongeurs; Punches; Stamps · CPC title

• A61B2017/0042

  with special provisions for gripping · CPC title