Surgical stapling device

• US 20050263563A1
• Filed: 05/10/2005
• Published: 12/01/2005
• Est. Priority Date: 10/13/2000
• Status: Abandoned Application

• Current Assignee: David C. Racenet, Timothy N. Wells
• Original Assignee: David C. Racenet, Timothy N. Wells
• Inventors: Racenet, David C., Wells, Timothy N.
• Application Number:
  US11/125,790
• Publication Number:
  US 20050263563A1
• Time in Patent Office: Days
• US Class Current: 227/176.100
• CPC Class Codes: A61B 17/068 Surgical staplers , e.g. containing multiple staples or clampsstaplers containing only one staple A61B17/10; magazines or containers for staples A61B17/105; for performing anastomosis A61B17/115; staplers in general B25C5/00
• 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 2017/00367 Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
• CPC Class Codes: A61B 2017/0038 Simultaneous actuation of two tools by pushing one button or the like
• CPC Class Codes: A61B 2017/07214 Stapler heads
• CPC Class Codes: A61B 2017/07264 characterised by its staple forming cavities, e.g. geometry or material
• CPC Class Codes: A61B 2017/2925 Pistol grips
• CPC Class Codes: A61B 2017/2945 Curved jaws
• CPC Class Codes: A61B 2017/320052 Guides for cutting instruments
• CPC Class Codes: A61B 2090/0811 for the position of a particular part of an instrument with respect to the rest of the instrument, e.g. position of the anvil of a stapling instrument

Abstract

A surgical stapling device for applying an array of surgical staples to tissue is provided. The stapling device includes an approximation mechanism for moving a cartridge assembly and an anvil assembly between spaced and approximated positions and a firing mechanism for ejecting the array of staples from the cartridge assembly. A single trigger is operable to effect approximation and firing of the device. The device also includes an alignment pin assembly which can be selectively manually or automatically advanced. The anvil assembly includes a stiffener plate which allows the device to have a reduced head portion profile.

Claims

1. (canceled)

2. A surgical stapling device comprising:

a frame having first and second ends;

a body portion defining a handle;

a trigger supported adjacent the handle;

an anvil assembly secured to the second end of the frame;

a cartridge assembly movably supported in relation to the anvil assembly between spaced and approximated positions; and

means for strengthening the anvil assembly, wherein the strengthening means is supported at the second end of the frame.

3. A surgical stapling device according to claim 2, wherein the strengthening means includes a stiffener plate.

4. A surgical stapling device according to claim 3, wherein the stiffener plate is substantially L-shaped, the stiffener plate being secured to the second end of the frame to provide support to the anvil assembly along horizontal and vertical axes.

5. A surgical stapling device according to claim 4, wherein the frame includes left and right spaced frame sections.

6. A surgical stapling device according to claim 5, wherein the stiffener plate is positioned between the left and right frame sections.

7. A surgical stapling device according to claim 2, wherein the stiffener plate is formed of stainless steel.

8. A surgical stapling device according to claim 2, wherein the frame includes left and right frame sections.

9. A surgical stapling device according to claim 8, wherein the stiffener plate is positioned between the left and right frame sections.

10. A surgical stapling device according to claim 9, further including a spacer plate positioned about the stiffener plate between the left and right frame sections.

11. A surgical stapling device according to claim 3, wherein the stiffener plate includes a slot adapted to slidably receive an interlock, the interlock being movable from a first position to a second position to prevent distal movement of a thrust bar of the stapling device.

12. A surgical stapling device comprising:

a frame having first and second ends;

a handle supported at the first end of the frame;

a trigger supported adjacent the handle;

an anvil supported on the second end of the frame;

a cartridge assembly movably supported on the second end of the frame, the cartridge assembly being movable in relation to the anvil assembly between spaced and approximated positions; and

a stiffener plate supported on the second end of the frame adjacent the anvil, the stiffener plate being substantially L-shaped to provide vertical and horizontal stability to the anvil.

13. A surgical stapling device according to claim 12, wherein the frame includes left and right frame sections, the stiffener plate being positioned between the left and the right frame sections.

14. A surgical stapling device according to claim 12, wherein the stiffener plate is formed of stainless steel.

15. A surgical stapling device according to claim 13, further including a spacer plate positioned about the stiffener plate between the left and right frame sections.

16. A surgical stapling device according to claim 15, wherein the stiffener plate includes a slot adapted to slidably receive an interlock, the interlock being movable from a first position to a second position to inhibit distal movement of a thrust bar of the stapling device.