Method for forming staple pockets of a surgical stapler

• US 8,008,598 B2
• Filed: 07/27/2006
• Issued: 08/30/2011
• Est. Priority Date: 07/27/2005
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: Whitman, Michael P., Malinouskas, Donald, Burbank, John E.
• Primary Examiner(s): Evans; Geoffrey S
• Application Number:
  US11/494,999
• Publication Number:
  US 20070056932A1
• Time in Patent Office: 1,860 Days
• Field of Search: 219/121.7, 219/121.71, 219/121.82, 219/121.68, 219/121.69, 700/166
• US Class Current: 219/121.69
• CPC Class Codes: A61B 17/072 for applying a row of staples in a single action , e.g. the staples being applied simultaneously
• CPC Class Codes: A61B 2017/00526 Methods of manufacturing
• CPC Class Codes: A61B 2017/07264 characterised by its staple forming cavities, e.g. geometry or material
• CPC Class Codes: B23K 26/361 for deburring or mechanical trimming B23K26/351 takes precedence

Abstract

A system and method for forming a staple pocket, e.g., on the anvil portion of a surgical stapler device. A laser-machining system may include a laser-emitting device that is configured to emit a laser beam or beams for forming staple pockets on the anvil of a surgical stapler. The staple pockets of an anvil may be formed successively or simultaneously. The anvil of the surgical stapler is mounted in a mounting mechanism so as to control its movement, and the laser-emitting device is controlled by a control module, which may control any aspect of the laser-machining operation, e.g., the intensity of the laser beam, the movement of the laser-emitting device relative to the anvil, etc. The control module may be a processor that includes software that provides instructions for the operation of the control module, and may be programmable by a user for inputting parameters, e.g., shape, arrangement, etc., corresponding to the staple pockets.

Claims

1. A method for forming staple pockets, the method comprising the steps of:

mounting a workpiece;

emitting a laser beam at the workpiece; and

forming, via the laser beam, staple pockets on the workpiece in a nested arrangement along a longitudinal axis of the workpiece, the nested arrangement including;

a first staple pocket positioned in a first row, the first staple pocket having proximal and distal recesses positioned along the longitudinal axis; and

a second staple pocket positioned in a second row, the second staple pocket having proximal and distal recesses positioned along the longitudinal axis, the second row being parallel to the first row;

wherein the distal recess of the first staple pocket is axially aligned with the proximal recess of the second staple pocket in a direction orthogonal to the longitudinal axis.

2. The method of claim 1, wherein the workpiece is an anvil of a surgical stapler.

3. The method of claim 1, further comprising the step of moving the workpiece.

4. The method of claim 1, wherein the forming step includes forming one of substantially triangular shaped and bicycle seat shaped staple pocket recesses on the workpiece, the bicycle seat shaped staple pocket recesses being generally triangular and having a convex and concave perimetrical outer profile.

5. The method of claim 4, wherein the forming of the staple pocket recesses on the workpiece is performed successively.

6. The method of claim 4, wherein the forming of the staple pocket recesses on the workpiece is performed simultaneously by simultaneously emitting a plurality of laser beams.

7. The method of claim 1, further comprising the step of controlling the emitting of the laser beam via a control module.

8. The method of claim 7, wherein the control module is a processor that includes software, wherein the method further comprises the step of providing instructions for the operation of the control module.

9. The method of claim 8, further comprising the step of a user programming the control module.

10. The method of claim 9, wherein the programming step includes receiving from the user input parameters.

11. The method of claim 9, wherein the step of receiving from the user input parameters includes receiving at least one of a shape and an arrangement of the staple pocket.

12. The method of claim 7, wherein the controlling step includes controlling an intensity of the laser beam.

13. The method of claim 7, wherein the controlling step includes controlling a movement of the laser beam relative to the workpiece.