Granted Patent B2

US 12,678,172 · App. 18/398,744 · Granted Jul 14, 2026

Inventors: Conor Mac An Tuile (Muine Bheag, IE); James G. Walen (Portage, MI)

Assignee: Stryker European Operations Holdings LLC

A61B17/142A61B17/14B23D61/006B27B19/006

Abstract

Claims (33)

1 . A surgical saw cartridge for oscillating a blade, the surgical saw cartridge comprising:

a guide bar including a proximal end and a distal end, the guide bar comprising:

two outer plates;

an inner plate defining a base;

two outer tines extending distally from said proximal end of said guide bar, each of the two outer tines located between the two outer plates and spaced apart from one another; and

an inner tine being disposed between the two outer tines and extending distally from said proximal end of said guide bar, the inner tine is formed to define a head;

wherein each of the two outer tines and the inner tine extend distally from the base;

a blade coupled to the guide bar, the blade formed with teeth located distal to the guide bar and the blade configured to contact and pivot about the head of the inner tine;

at least one drive link moveably disposed between the two outer plates within a space between the inner tine and one of the two outer tines, the at least one drive link connected to the blade so that reciprocation of the at least one drive link results in pivoting of the blade around the head of the inner tine;

wherein the outer tines are stationary relative to the two outer plates when the blade is pivoted about the head of the inner tine; and

wherein at least a portion of the blade is located between the two outer tines.

2 . The surgical saw cartridge of claim 1 , wherein the inner tine further defines an opening in registration with an opening of one of the two outer plates.

3 . The surgical saw cartridge of claim 1 , wherein the two outer tines are mirror images of one another.

4 . The surgical saw cartridge of claim 1 , wherein the two outer tines are symmetrically located relative to a longitudinal axis through the guide bar.

5 . The surgical saw cartridge of claim 1 , wherein the two outer plates and the two outer tines are secured together to form the guide bar.

6 . The surgical saw cartridge of claim 1 , wherein an outer surface of each of the two outer tines forms a section of an outer side surface of the guide bar; and

wherein the guide bar includes a side weld formed along the section of the outer side surface of the guide bar that couples each of the two outer tines to each of the two outer plates.

7 . A surgical saw cartridge for oscillating a blade, the surgical saw cartridge comprising:

a guide bar including a proximal end and a distal end, the guide bar comprising:

two outer plates; and

two outer tines spaced apart from one another, each of the two outer tines located between the two outer plates;

an inner tine being disposed between the two outer tines, the inner tine is formed to define a head and defining an opening in registration with an opening of one of the two outer plates;

a blade coupled to the guide bar, the blade formed with teeth located distal to the guide bar and configured to contact and pivot about the head of the inner tine; and

at least one drive link moveably disposed between the two outer plates within a space between the inner tine and one of the two outer tines, the at least one drive link connected to the blade so that reciprocation of the at least one drive link results in pivoting of the blade around the head of the inner tine;

wherein the outer tines are stationary relative to the two outer plates when the blade is pivoted about the head of the inner tine; and

wherein at least a portion of the blade is located between the two outer tines.

8 . The surgical saw cartridge of claim 7 , further comprising a base that forms a proximal end of an inner plate;

wherein each of the two outer tines and the inner tine extend distally from the base.

9 . The surgical saw cartridge of claim 8 , wherein the two outer plates and the inner plate are three separate plates that are secured together to form the guide bar.

10 . The surgical saw cartridge of claim 7 , wherein the two outer tines are mirror images of one another.

11 . The surgical saw cartridge of claim 7 , wherein the two outer tines are symmetrically located relative to a longitudinal axis through the guide bar.

12 . The surgical saw cartridge of claim 7 , wherein an outer surface of each of the two outer tines forms a section of an outer side surface of the guide bar; and

wherein the guide bar includes a side weld formed along the section of the outer side surface of the guide bar that couples each of the two outer tines to each of the two outer plates.

Assignments (6)

Continuity (6)

References Cited (181)