Surgical saw and saw blade for use therewith

• US 10,456,142 B2
• Filed: 06/02/2017
• Issued: 10/29/2019
• Est. Priority Date: 06/03/2016
• Status: Active Grant

• Current Assignee: MAKO Surgical Corporation (Stryker Corporation)
• Original Assignee: MAKO Surgical Corporation (Stryker Corporation)
• Inventors: Shiels, Paul
• Primary Examiner(s): Sevilla, Christian A
• Application Number:
  US15/612,119
• Publication Number:
  US 20170348007A1
• Time in Patent Office: 879 Days
• CPC Class Codes: A61B 17/142 with reciprocating saw blades, e.g. with cutting edges at the distal end of the saw blades
• CPC Class Codes: A61B 2017/00477 Coupling A61B2017/0046 takes precedence

Abstract

A surgical saw blade for being coupled to a drive hub of a surgical saw. The surgical saw blade includes an attachment portion configured to be removably coupled to the drive hub. The surgical saw blade also includes a cutting portion opposite the attachment portion that includes a plurality of teeth. Additionally, the attachment portion defines a pair of indents. The first indent and the second indent are each defined by at least one curved surface. The curved surface is radially outwardly convex.

Claims

1. A surgical saw blade for being coupled to a drive hub of a surgical saw comprising:

an attachment portion configured to be removably coupled to the drive hub and having a cutting portion opposite said attachment portion including a plurality of teeth;

said attachment portion having a first indent and a second indent forming a first space and a second space, wherein said first indent and said second indent have at least one curved portion and said curved portion is convex such that said curved portion impinges said space,

wherein said first indent is defined by a first side, a second side, and a third side and at least one of said first side, said second side, or said third side form said curved portion.

2. The surgical saw blade of claim 1, wherein said attachment portion of said blade has a third indent having a ‘

U’

shape.

3. The surgical saw blade of claim 2, wherein said third indent includes a notch.

4. The surgical saw blade of claim 1, wherein said teeth are triangularly shaped.

5. The surgical saw blade of claim 4, wherein said teeth have varied thicknesses.

6. The surgical saw blade of claim 4, wherein a single tooth of said plurality of teeth has a varied thickness.

7. The surgical saw blade of claim 1, wherein said blade has a thickness of approximately 2 mm.

8. The surgical saw blade of claim 1, wherein said curved portions comprises a first curved portion and second curved portion and said first side forms said first curved portion and said third side forms said second curved portion.

9. The surgical saw blade of claim 1, wherein said second side forms said curved portion.

10. The surgical saw blade of claim 1, wherein said curved portions comprises a first curved portion, a second curved portion and a third curved portion and said first side forms said first curved portion, said second side forms said second curved portion, and said third side forms said third curved portion.

11. The surgical saw blade of claim 1, wherein said first side and said third side are convex in shape and a convex portion of said first side and said third side are facing each other.

12. The surgical saw blade of claim 1, wherein an aperture is disposed on the cutting portion.

13. The surgical saw blade of claim 12, wherein said aperture is triangular in shape.

14. The surgical saw blade of claim 1 further comprising an arrow disposed on a top surface of said blade indicating a direction of swing.

15. A surgical saw assembly coupled to a motor, said assembly comprising:

a housing;

a driver disposed within said housing and having a drive hub, said driver configured to be coupled to the motor;

a blade removably coupled to said drive hub at an attachment portion and having a cutting portion opposite said attachment portion, said cutting portion including a plurality of teeth;

said attachment portion defining a first indent and a second indent, wherein said attachment portion comprises at least one curved surface defining each of said indents-; and

said drive hub including a first drive boss and a second drive boss adapted to be coupled to said blade in said first indent and said second indent, respectively; and

wherein said first indent is defined by a first side, a second side, and a third side and at least one of said first side, said second side, or said third side form said curved surface, said curved surface being convexly shaped.

16. The surgical saw assembly of claim 15, wherein said first drive boss and said second drive boss have at least one linear edge.

17. The surgical saw assembly of claim 16, wherein said at least one linear edge of said first drive boss and said second drive boss engage said at least one curved portion defining said first indent and said second indent, respectively.