Staple line reinforcement for anvil and cartridge

• US 8,561,873 B2
• Filed: 03/14/2012
• Issued: 10/22/2013
• Est. Priority Date: 10/15/2009
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Ingmanson, Michael D., Shah, Sachin, McNellis, Joseph
• Primary Examiner(s): Smith, Scott A.
• Application Number:
  US13/419,565
• Publication Number:
  US 20120168486A1
• Time in Patent Office: 587 Days
• Field of Search: 227/19, 227/175.1, 227/176.1, 227/178.1, 227/180.1, 606/139, 606/151, 606/153, 606/219
• US Class Current: 227/176.1
• 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 17/07207 the staples being applied sequentially
• CPC Class Codes: A61B 17/07292 Reinforcements for staple line, e.g. pledgets
• CPC Class Codes: A61B 2017/07214 Stapler heads

Abstract

A surgical stapling apparatus including a cartridge assembly defining a first tissue contacting surface, an anvil assembly defining a second tissue contacting surface, and a surgical buttress releasably secured to at least one of the first tissue contacting surface and the second tissue contacting surface is provided. The buttress provides a uniform profile to be used on both the anvil and cartridge of a loading unit.

Claims

1. A surgical stapling apparatus, comprising:

a cartridge assembly defining a first tissue contacting surface, the cartridge assembly housing a plurality of surgical fasteners therein arranged in a linear configuration;

an anvil assembly defining a second tissue contacting surface, the anvil assembly and cartridge assembly being movably secured in relation to one another; and

a surgical buttress releasably secured to at least one of the first tissue contacting surface and the second tissue contacting surface, the surgical buttress including a body portion configured to substantially overlie the at least one of the first tissue contacting surface and the second tissue contacting surface;

wherein the surgical buttress defines at least one attachment feature in a lateral side edge of the surgical buttress, the at least one attachment feature overlying and abutting at least one of;

an upper surface defining the staple retention slots of the first tissue contacting surface of the cartridge assembly; and

an anvil plate defining a plurality of staple forming pockets of the second tissue contacting surface of the anvil assembly; and

a suture retaining the surgical buttress at the attachment feature to the at least one of the cartridge assembly and the anvil assembly.

2. The surgical stapling apparatus of claim 1, wherein each surgical buttress is fabricated from a biocompatible and bioabsorbable material.

3. The surgical stapling apparatus of claim 1, wherein the surgical buttress is retained against the second tissue contacting surface of the anvil assembly and further comprising another surgical buttress retained against the first tissue contacting surface of the cartridge assembly.

4. The surgical stapling apparatus of claim 1, further comprising at least one attachment point defined within at least one of:

the upper surface of the first tissue contacting surface of the cartridge assembly; and

the anvil plate of the second tissue contacting surface of the anvil assembly.

5. The surgical stapling apparatus of claim 4, wherein the attachment point is a recess in the at least one of the first tissue contacting surface and the second tissue contacting surface.

6. The surgical stapling apparatus of claim 5, wherein the attachment feature is a notch in the surgical buttress.

7. The surgical stapling apparatus of claim 6, wherein the suture extends across the at least one of the first tissue contacting surface and the second tissue contacting surface, into the recess to retain the surgical buttress.

8. The surgical stapling apparatus of claim 1, wherein the attachment feature is at a distal end of the at least one of the first tissue contacting surface and the second tissue contacting surface.

9. The surgical stapling apparatus of claim 1, wherein the attachment feature is at a proximal end of the at least one of the first tissue contacting surface and the second tissue contacting surface.

10. The surgical stapling apparatus of claim 1, wherein the surgical buttress is selected from a material consisting of a porous material, a non-porous material, a bio-absorbable material, and a non-absorbable material.

11. The surgical stapling apparatus of claim 1, wherein the surgical buttress includes at least two attachment features.

12. The surgical stapling apparatus of claim 11, wherein the at least two attachment features are disposed on opposed lateral side edges of the surgical buttress.

13. The surgical stapling apparatus of claim 11, wherein the at least two attachment features are in registration with at least two attachment points of at least one of the cartridge assembly and the anvil assembly.