Wedge osteotomy device and method of use

Patent metadata

Field	Value
Publication number	US-11589877-B2
Application number	US-201916596395-A
Country	US
Kind code	B2
Filing date	Oct 8, 2019
Priority date	Oct 10, 2018
Publication date	Feb 28, 2023
Grant date	Feb 28, 2023

Abstract

A wedge osteotomy device including a cutting guide coupled to a base plate via a joint. The cutting guide configured to pivot relative to the base plate about a pivot axis extending through the joint. The cutting guide including a guide body including a cutting slot extending through the guide body, an arcuate slot extending through the guide body and defining a radius to the joint, and a plurality of markers on the guide body identifying a position of the cutting guide relative to the base plate. The base plate including planar top and bottom surfaces.

First claim

What is claimed is:

1. A wedge osteotomy device comprising:
a cutting guide coupled to a base plate via a joint, the cutting guide configured to pivot relative to the base plate about a pivot axis extending through the joint, the cutting guide comprising a guide body including a cutting slot extending through the guide body, an arcuate slot extending through the guide body and defining a radius to the joint, and a plurality of markers on the guide body identifying a position of the cutting guide relative to the base plate, the base plate comprising planar top and bottom surfaces, wherein the guide body further includes a cylindrical bore defining a first portion of the joint and extending through the guide body, the cutting slot intersecting the cylindrical bore.

2. The wedge osteotomy device of claim 1 , further comprising a blade guard coupled to the base plate and comprising a surface perpendicular to the planar top surface.

3. The wedge osteotomy device of claim 2 , wherein the pivot axis is at the intersection of the surface of the blade guard and the planar top surface of the base plate.

4. The wedge osteotomy device of claim 1 , wherein the cutting slot is a planar cutting slot.

5. The wedge osteotomy device of claim 1 , wherein the position is an angular position.

6. The wedge osteotomy device of claim 1 , wherein the base plate further comprises a shaft extending from a side surface of the base plate, the shaft being receivable within the cylindrical bore and defining a second portion of the joint.

7. The wedge osteotomy device of claim 6 , wherein the shaft comprises a partial cylinder having an opened segment extending longitudinally on the shaft, the partial cylinder including a planar first surface coplanar with the planar top surface of the base plate.

8. The wedge osteotomy device of claim 7 , the partial cylinder including a planar second surface perpendicular to the planar first surface.

9. The wedge osteotomy device of claim 1 , further comprising a thumb-screw securable to the base plate through the arcuate slot.

10. The wedge osteotomy device of claim 1 , wherein the guide body further includes at least one anchor bores extending through the guide body, the at least one anchor bores positioned below the cutting slot.

11. A wedge osteotomy device comprising:
a cutting guide coupled to a base plate via a joint, the cutting guide configured to pivot relative to the base plate about a pivot axis extending through the joint, the cutting guide comprising a guide body including a cutting slot extending through the guide body, an arcuate slot extending through the guide body and defining a radius to the joint, and a plurality of markers on the guide body identifying a position of the cutting guide relative to the base plate, the base plate comprising planar top and bottom surfaces, wherein the cutting slot intersects the pivot axis.

12. The wedge osteotomy device of claim 11 , further comprising a blade guard coupled to the base plate and comprising a surface perpendicular to the planar top surface.

13. The wedge osteotomy device of claim 12 , wherein the pivot axis is at the intersection of the surface of the blade guard and the planar top surface of the base plate.

14. The wedge osteotomy device of claim 11 , wherein the cutting slot is a planar cutting slot.

15. The wedge osteotomy device of claim 11 , wherein the position is an angular position.

16. The wedge osteotomy device of claim 11 , further comprising a thumb-screw securable to the base plate through the arcuate slot.

17. A wedge osteotomy device comprising:
a cutting guide coupled to a base plate via a joint, the cutting guide configured to pivot relative to the base plate about a pivot axis extending through the joint, the cutting guide comprising a guide body including a cutting slot extending through the guide body, and a bore extending through the guide body and intersecting the cutting slot, the base plate comprising planar top and bottom surfaces and a shaft extending from a side thereof, the shaft being receivable within the bore to form the joint, the shaft comprising a partial cylindrical outer surface, and a side opening extending from the partial cylindrical outer surface to a central axis thereof.

18. The wedge osteotomy device of claim 17 , further comprising a thumb-screw rotatably coupled with the guide body and configured to secure the cutting guide in an angular position relative to the base plate.

19. The wedge osteotomy device of claim 17 , wherein the shaft further comprises a planar surface coplanar with the planar top surface of the base plate.

20. The wedge osteotomy device of claim 17 , wherein the cutting slot extends to the pivot axis through the side opening of the shaft of the base plate.

Assignees

• Univ Colorado State Res Found

Inventors

• Duerr Felix

Classifications

• A61B2090/0811

  for the position of a particular part of an instrument with respect to the rest of the instrument, e.g. position of the anvil of a stapling instrument · CPC title

• A61B2090/067

  for measuring angles · CPC title

• A61B17/152 Primary

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

• A61B90/10

  for stereotaxic surgery, e.g. frame-based stereotaxis · CPC title

• A61B2090/08021

  of the patient or his organs · CPC title