SURGICAL BLADE ASSEMBLY

• US 20120289963A1
• Filed: 07/09/2012
• Published: 11/15/2012
• Est. Priority Date: 01/11/2010
• Status: Active Grant

• Current Assignee: Zimmer Surgical SA (Zimmer Biomet Holdings, Inc.)
• Original Assignee: Zimmer Surgical SA (Zimmer Biomet Holdings, Inc.)
• Inventors: LEGRAND, Bernard P., DETRY, Marc
• Granted Patent: US 8,966,772 B2
• Time in Patent Office: Days
• US Class Current: 606/79
• 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: B27B 19/006 with oscillating saw blades; Hand saws with oscillating saw blades
• CPC Class Codes: B27B 19/008 having a plurality of saw blades or saw blades having plural cutting zones
• CPC Class Codes: B27B 5/32 Devices for securing circular saw blades to the saw spindle

Abstract

A surgical blade assembly for use with a driver includes a blade with a distal cutting portion, and a proximal end has a first dimension which is less than what is applicable for use with a specific driver head. An insert is affixed to the blade proximal end and, when affixed to the blade proximal end, is configured to enable the blade for use with the driver head. A surgical cutting tool includes such a surgical blade assembly and a driver head receiving the blade assembly. A surgical cutting tool kit includes a driver with a head for receiving the blade assembly, and a plurality of such surgical blade assemblies for use with the driver, wherein the blades have different thicknesses (a) and/or widths and the corresponding inserts are configured such that the proximal ends of the surgical blade assemblies all include at least one same constant dimension (b).

Claims

1. A kit of surgical blade assemblies, the kit comprising:

a plurality of blade assemblies configured and arranged for use with a driver for forming a surgical cutting tool, each surgical blade assembly of said plurality of surgical blade assemblies including;

a blade having a proximal end and a distal end, said distal end comprising a cutting portion, said proximal end having a thickness (a) which is less than what is applicable for use with the head of a specific driver; and

an insert affixed to the proximal end of said blade;

wherein said insert, when affixed to the proximal end of the blade, is configured and arranged to provide said blade assembly with at least one constant thickness (b) of a part of said blade assembly, said at least one constant thickness being measured from one surface of said saw blade to an opposite surface of said insert, to enable said blade to be used with the head of said driver, and wherein said constant thickness (b) allows a tight fit of said blade assembly in the corresponding driver'"'"'s head with said blade in direct contact with said driver'"'"'s head; and

wherein said blades of said plurality of surgical blade assemblies have different thicknesses (a) and said inserts of said plurality of surgical blade assemblies are configured and arranged such that said at least one constant thickness (b) is the same for all of said plurality of blade assemblies independently of the different blade thicknesses (a).

2. A kit of surgical blade assemblies according to claim 1, wherein said insert of each surgical blade assembly of said plurality of surgical blade assemblies comprises fastening means for affixing said insert to said proximal end of said blade of said blade assembly.

3. A kit of surgical blade assemblies according to claim 2, wherein said fastening means comprises clips.

4. A kit of surgical blade assemblies according to claim 1, wherein said insert of each blade assembly of said plurality of surgical blade assemblies is made of a plastic material.

5. A surgical cutting tool comprising:

a kit of surgical blade assemblies according to claim 1; and

a driver comprising a head configured and arranged to receive any blade assembly of said plurality of blade assemblies,

wherein said blade is in tight and direct contact with said head when said blade assembly is locked onto said head.

6. A surgical cutting tool according to claim 5, wherein said head comprises a locking mechanism configured and arranged to removably lock said surgical blade assembly on said head.

7. A surgical cutting tool according to claim 6, wherein said locking mechanism comprises a tool-less mechanism.

8. A surgical cutting tool according to claim 7, wherein said locking mechanism comprises a self-locking pin.

9. Surgical cutting tool kit, comprising:

a driver comprising a head for receiving a blade assembly; and

a kit of surgical blade assemblies according to claim 1 configured and arranged to be used with said driver;

wherein said blades of said plurality of surgical blade assemblies have different thicknesses (a) and said inserts of said plurality of surgical blade assemblies are configured and arranged so that said at least one constant thickness (b) is the same for all of said plurality of blade assemblies independently of the different blade thicknesses (a).