Surgical saw blade and method for wedge osteotomies

• US 10,524,803 B1
• Filed: 01/26/2015
• Issued: 01/07/2020
• Est. Priority Date: 03/30/2009
• Status: Active Grant

• Current Assignee: Cortical Edge Orthopedics, LLC
• Original Assignee: Cortical Edge Orthopedics, LLC
• Inventors: Anderson, Keith Richard
• Primary Examiner(s): Ku, Si Ming
• Application Number:
  US14/605,634
• Time in Patent Office: 1,807 Days
• Field of Search: 606 79, 606 82, 606 84, 606 85
• CPC Class Codes: A61B 17/14 Surgical saws A61B17/1637 takes precedence; tooth saws A61C3/12 ; Accessories therefor
• CPC Class Codes: A61B 17/142 with reciprocating saw blades, e.g. with cutting edges at the distal end of the saw blades

Abstract

A surgical blade and method for performing a one-pass wedge osteotomy. The blade includes a body portion, having a cutting tip on a first end for initially cutting into the bone; a cutting slope comprising multiple rows of cutting teeth at multiple planes to resect bone as it enters, leaving a wedge osteotomy; a shaft of a predetermined length and width for supporting the cutting slope; and a saw attachment base on a second end of the blade for engaging a base of a saw to cause the blade to oscillate and perform the wedge osteotomy.

Claims

1. A method for performing a wedge osteotomy comprising:

providing a surgical saw blade comprising a bottom plane, a cutting point, and a cutting slope, the cutting slope comprising a plurality of offset planes positioned along the cutting slope, the cutting slope defining a second plane that intersects the bottom plane, each of the plurality of offset planes having an upper surface that is parallel to the bottom plane, and the cutting slope further comprising a plurality of rows of teeth, each of the plurality of rows of teeth positioned between the cutting slope and the offset planes;

attaching the surgical saw blade to a saw;

selecting a desired area of a bone for resection; and

initiating a cut in the bone with the cutting point and advancing the surgical saw blade through the bone to create a wedge osteotomy.

2. The method of claim 1 wherein the saw is an oscillating saw or a sagittal saw.

3. The method of claim 1 wherein the cutting point has a radius.

4. The method of claim 3 wherein each of the plurality of rows of teeth comprise a plurality of teeth having cutting tips extending in the direction of the cutting point, the teeth of each row positioned along a radius.

5. The method of claim 1 wherein the surgical saw blade comprises a trapezoidal shape.

6. The method of claim 1 wherein the surgical saw blade comprises a rectangular shape.

7. The method of claim 1 wherein the surgical saw blade is advanced through the bone with one pass of the blade to form a complete wedge osteotomy.

8. The method of claim 1 wherein the surgical saw blade is advanced through the bone leaving a distal cortex of the bone left intact as a hinge.

9. The method of claim 1 wherein the surgical saw blade does not have teeth on four surfaces and accommodates the cutting slope on a fifth surface, and the cutting point on a sixth surface.

10. The method of claim 1, wherein the surgical saw blade comprises a neck portion and a saw attachment base.

11. The method of claim 1, wherein advancing the surgical saw blade through the bone comprises oscillating the surgical saw blade parallel to the bottom plane.

12. The method of claim 1, wherein advancing the surgical saw blade through the bone comprises oscillating the surgical saw blade parallel to the first bottom plane such that the plurality of rows of teeth resects the bone.

13. The method of claim 1, wherein the surgical saw blade further comprises a second cutting slope on an opposite side of the bottom plane from the cutting slope, such that the surgical saw blade is configured to form a “

V”

shaped wedge osteotomy.

14. A method of performing a one-pass wedge osteotomy comprising:

a) attaching a surgical saw blade capable of producing a reproducible and predictable wedge osteotomy with one pass of the surgical saw blade to a saw, the surgical saw blade comprising,

i) a blade body having first and second ends and a bottom with a bottom plane,

ii) a first plurality of cutting teeth establishing a cutting point on the first end of the blade body for initiating a cut in a bone, and the cutting point having a radius;

iii) a shaft having a cutting slope defining a second plane that intersects the bottom plane;

iv) a plurality of offset planes positioned along the cutting slope, each offset plane having an upper surface that is parallel to the bottom plane; and

v) a plurality of rows of teeth positioned between the upper surface of the offset planes and the cutting slope, each row of teeth having multiple teeth comprising cutting tips extending towards the cutting point and spaced along a radius;

b) selecting a desired area of the bone for resection; and

c) advancing the surgical saw blade through the bone, with one pass of the surgical saw blade, and creating a wedge osteotomy.

15. The method of claim 14 wherein the surgical saw blade further comprises a saw attachment point on the second end of the blade body.

16. The method of claim 14 wherein the method includes initiating the cut in the bone with the cutting point of the blade and advancing the blade in a linear or straight fashion through the bone to create the wedge osteotomy.

17. A surgical blade for performing a wedge osteotomy comprising:

a blade having a bottom plane defining first and second ends, and a cutting slope defining a second plane that intersects the bottom plane;

the cutting slope of the blade comprising a plurality of offset planes, each of the plurality of offset planes having an upper surface that is parallel to the bottom plane and the plurality of offset planes positioned along the cutting slope, and wherein a plurality of teeth are positioned in between the offset planes and the cutting slope; and

a plurality of teeth establishing a cutting point on a first end of the blade.

18. The surgical blade of claim 17 wherein the cutting point has a radius.

19. The surgical blade of claim 18 wherein the plurality of teeth positioned between the offset planes are positioned along a radius and have cutting tips extending towards the cutting point.

20. The surgical blade of claim 17 wherein the blade comprises a neck portion and a saw attachment base.

21. The surgical blade of claim 17 wherein the blade comprises a rectangular shape.

22. The surgical blade of claim 17 wherein the blade comprises a trapezoidal shape.

23. The surgical blade of claim 17 wherein the blade does not have teeth on four surfaces and accommodates the cutting slope on a fifth surface, and the cutting point on a sixth surface.

24. A method for performing a wedge-osteotomy comprising:

providing a blade having a bottom plane extending between first and second ends, a plurality of teeth establishing a cutting point on the first end of the blade, and a cutting slope defining a second plane that intersects the bottom plane, the cutting slope comprising a plurality of offset planes positioned along the cutting slope wherein each of the plurality of offset planes has an upper surface that is parallel to the bottom plane and wherein teeth are positioned in between each of the offset planes and the cutting slope;

attaching the blade to a surgical saw; and

advancing the blade through a bone by oscillating the blade along a first plane parallel to the bottom plane to create a wedge osteotomy.