Surgical stapling device with staple driver that supports multiple wire diameter staples

• US 7,673,781 B2
• Filed: 02/28/2007
• Issued: 03/09/2010
• Est. Priority Date: 08/31/2005
• Status: Active Grant

• Current Assignee: Cilag Gmbh International (Johnson & Johnson)
• Original Assignee: Ethicon Endo-Surgery, Inc. (Johnson & Johnson)
• Inventors: Morgan, Jerome R., Shelton, Frederick E. IV, Swayze, Jeffrey S., Hueil, Joseph C.
• Primary Examiner(s): Rada; Rinaldi I.
• Assistant Examiner(s): CHUKWURAH, NATHANIEL C
• Application Number:
  US11/711,977
• Publication Number:
  US 20070194080A1
• Time in Patent Office: 1,105 Days
• Field of Search: 227/175.1, 227/19, 227/176.1, 227/180.1
• US Class Current: 227/175.1
• CPC Class Codes: A61B 17/0644 penetrating the tissue, deformable to closed position
• CPC Class Codes: A61B 17/0682 for applying U-shaped staples or clamps, e.g. without a forming anvil
• 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 17/07207 the staples being applied sequentially
• CPC Class Codes: A61B 17/115 Staplers for performing anastomosis in a single operation
• CPC Class Codes: A61B 17/32053 Punch like cutting instruments, e.g. using a cylindrical or oval knife A61B17/326 takes precedence; trepans A61B17/1695; for use on the cornea A61F9/007
• CPC Class Codes: A61B 2017/07235 containing different staples, e.g. staples of different shapes, sizes or materials
• CPC Class Codes: A61B 2017/07242 achieving different staple heights during the same shot, e.g. using an anvil anvil having different heights or staples of different sizes
• CPC Class Codes: A61B 2017/07264 characterised by its staple forming cavities, e.g. geometry or material
• CPC Class Codes: A61B 2017/07278 characterised by its sled or its staple holder
• CPC Class Codes: A61B 2017/320052 Guides for cutting instruments by marking A61B2090/395
• CPC Class Codes: B25C 5/0292 with the objects to be stapled together introduced perpendicularly to the longitudinal axis of the tool in an opening formed by an anvil and a plunger

Abstract

A staple cartridge for use with a surgical stapling device. The stapling device has an actuator that is selectively actuatable in an axial direction and an anvil that is moveable between open and closed positions. The staple cartridge comprises a plurality of staples and a first plurality of staple drivers. Each staple driver has an upper staple supporting surface for supporting one of the staples such that, when actuated, each staple driver drives the staple into the anvil. The upper staple supporting surface supports staples of different wire diameters in an upright position.

Claims

1. A staple cartridge for use with a surgical stapling device that has an actuator that is selectively actuatable in an axial direction and an anvil that is moveable between open and closed positions, the staple cartridge comprising:

a plurality of staples, each staple having a main portion and two prongs, the prongs extending from opposite first and second end portions of the main portion such that the prongs are not parallel to the main portion, and wherein the main portion comprises a middle portion between the first and second end portions;

a first plurality of staple drivers, wherein each staple driver of the first plurality of staple drivers has first and second upper flat staple supporting surfaces for supporting one of the plurality of staples, wherein the first and second upper flat staple supporting surfaces each have a longitudinal length extending in the axial direction and parallel to the main portion of the staples, wherein the first upper flat staple supporting surface supports the first end portion of the main portion of the staple and the second upper flat staple supporting surface supports the second end portion of the main portion, and wherein the middle portion of the main portion of the staple is not in contact with the staple driver, wherein, when actuated, each staple driver drives the staple into the anvil, wherein the first and second upper staple supporting surfaces of each staple driver support staples of different wire diameters in an upright position, wherein;

each of the first flat upper staple supporting surfaces comprise;

a first outer set of convex bumps on the first flat upper staple supporting surface, aligned transversely to the longitudinal length of the first flat upper staple supporting surface; and

a first inner set of convex bumps on the first flat upper staple supporting surface, aligned transversely to the longitudinal length of the first flat upper staple supporting surface, wherein the first outer and inner set of convex bumps contact a lower surface of the first end of the main portion of the staple; and

each of the second flat upper staple supporting surfaces comprise;

a second outer set of convex bumps on the second flat upper staple supporting surface, aligned transversely to the longitudinal length of the second flat upper staple supporting surface; and

a second inner set of convex bumps on the second flat upper staple supporting surface, aligned transversely to the longitudinal length of the second flat upper staple supporting surface, wherein the second outer and inner set of convex bumps contact a lower surface of the second end of the main portion of the staple,

wherein upper height levels for the first and second outer and inner sets of convex bumps are less than an upper height level of the main portion of the staple supported by the first and second outer and inner set of convex bumps, and

wherein the first inner and outer sets of convex bumps and the second inner and outer sets of convex bumps support staples having different wire diameters for the main portion.

2. The staple cartridge of claim 1, wherein the first and second upper staple supporting surfaces of the first plurality of staple drivers support staples with a wire diameter of between 0.006 inches to 0.012 inches.

3. The staple cartridge of claim 1, further comprising a second plurality of staple drivers, each of the second plurality of staple drivers having an upper staple supporting surface that cannot support staples of different wire diameters.

4. The staple cartridge of claim 1, wherein the inner sets of convex bumps are larger than the outer sets of convex bumps.

5. A surgical stapling device comprising an end effector that comprises:

an anvil having a staple forming surface;

a plurality of staples, each staple having a main portion and two prongs, the prongs extending from opposite first and second end portions of the main portion such that the prongs are not parallel to the main portion, and wherein the main portion comprises a middle portion between the first and second end portions;

a first plurality of staple drivers, wherein each staple driver of the first plurality of staple drivers has first and second upper flat staple supporting surfaces for supporting one of the plurality of staples, wherein the first and second upper flat staple supporting surfaces each have a longitudinal length extending in the axial direction and parallel to the main portion of the staples, wherein the first upper flat staple supporting surface supports the first end portion of the main portion of the staple and the second upper flat staple supporting surface supports the second end portion of the main portion, and wherein the middle portion of the main portion of the staple is not in contact with the staple driver, wherein, when actuated, each staple driver drives the staple into the anvil, wherein the first and second upper staple supporting surfaces of each staple driver support staples of different wire diameters in an upright position, wherein;

each of the first flat upper staple supporting surfaces comprise;

a first outer set of convex bumps on the first flat upper staple supporting surface, aligned transversely to the longitudinal length of the first flat upper staple supporting surface; and

a first inner set of convex bumps on the first flat upper staple supporting surface, aligned transversely to the longitudinal length of the first flat upper staple supporting surface, wherein the first outer and inner set of convex bumps contact a lower surface of the first end of the main portion of the staple; and

each of the second flat upper staple supporting surfaces comprise;

a second outer set of convex bumps on the second flat upper staple supporting surface, aligned transversely to the longitudinal length of the second flat upper staple supporting surface; and

a second inner set of convex bumps on the second flat upper staple supporting surface, aligned transversely to the longitudinal length of the second flat upper staple supporting surface, wherein the second outer and inner set of convex bumps contact a lower surface of the second end of the main portion of the staple,

wherein upper height levels for the first and second outer and inner sets of convex bumps are less than an upper height level of the main portion of the staple supported by the first and second outer and inner set of convex bumps, and

wherein the first inner and outer sets of convex bumps and the second inner and outer sets of convex bumps support staples having different wire diameters for the main portion.

6. The surgical stapling device of claim 5, wherein the first and second upper staple supporting surfaces of the first plurality of staple drivers support staples with a wire diameter of between 0.006 inches to 0.012 inches.

7. The surgical stapling device of claim 5, further comprising a second plurality of staple drivers, each of the second plurality of staple drivers having an upper staple supporting surface that cannot support staples of different wire diameters.

8. The surgical stapling device of claim 5, wherein the inner sets of convex bumps are larger than the outer sets of convex bumps.

9. The surgical stapling device of claim 5, wherein the end effector further comprises a cutting instrument for cutting tissue clamped in the end effector.

10. The surgical stapling device of claim 5, wherein the anvil is circular.

11. The surgical stapling device of claim 5, wherein the anvil is linear.

12. The surgical stapling device of claim 5, further comprising:

a shaft assembly connected to the end effector; and

a handle assembly connected to the shaft assembly.