# US 2016/0256166 A1 · Interlocking buttress material retention system

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2016/0256166 A1
- Document ID: US20160256166A1
- Status: Published application
- Kind: A1
- Application number: 15/156,642
- Filed: 2016-05-17
- Published: 2016-09-08
- Earliest claimed: 2007-06-18
- Assignees: Covidien LP
- Applicants: Covidien LP
- Inventors: Megan L. (Prommersberger) Stopek
- Web page: https://patentgrep.com/patent/US20160256166A1

## CPC

- A61B 17/105: {Wound clamp magazines (for packaging sharps A61B50/3001)}
- A61B 17/0682: {for applying U-shaped staples or clamps, e.g. without a forming anvil}
- A61B 17/0686: {having a forming anvil staying below the tissue during stapling}
- A61B 17/072: for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B 17/07207: {the staples being applied sequentially}
- A61B 17/07292: {Reinforcements for staple line, e.g. pledgets}
- A61B 17/32: Surgical cutting instruments ({A61B18/042 takes precedence; suture cutters A61B17/0467;} implements for ligaturing and cutting {A61B17/122, A61B17/12; instruments for rupturing the amniotic membrane A61B17/4208; specially adapted knives for eye surgery A61F9/0133})
- A61B 17/068: Surgical staplers {, e.g. containing multiple staples or clamps}({staplers containing only one staple A61B17/10; magazines or containers for staples A61B17/105;} for performing anastomosis A61B17/115; {staplers in general B25C5/00})
- A61B 2017/00004: {(bio)absorbable, (bio)resorbable or resorptive}
- A61B 2017/00893: {pharmaceutically effective}
- A61B 2017/07214: {Stapler heads}
- A61B 2017/320052: {Guides for cutting instruments}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

A surgical stapler is provided having a pair of jaws including a staple containing cartridge and an anvil. Buttress material is releasable affixed to the staple containing cartridge and the anvil. One of the jaws includes a pair of longitudinal projections at a first end of the jaw and configured to frictionally engage corresponding slots in a first end the buttress material. One of the jaws includes a post at a second end of the jaw. The buttress material includes a hole in a second end of the buttress material for receipt of the post.

## Claims

### Claim at position 1

1-1. (canceled)

### Claim 2

A surgical stapler comprising:
a jaw assembly including a staple cartridge and an anvil, at least one of the staple cartridge and anvil having a tissue facing surface defining a round projection extending from the tissue facing surface of the at least one of the staple cartridge and anvil and shaped to retain a buttress material, the buttress material defining a recess therein for receiving the round projection so that the buttress material is releasably disposed against the tissue facing surface, the buttress material having a bioactive agent for delivery of the bioactive agent to tissue, the bioactive agent having pharmacological activity with the tissue.

### Claim 3 (depends on 2)

The surgical stapler according to claim 2, wherein the buttress material is recessed into the tissue facing surface.

### Claim 4 (depends on 2)

The surgical stapler according to claim 2, wherein the at least one of the staple cartridge and anvil includes a longitudinally extending knife slot, the at least one projection being separated by the knife slot.

### Claim 5 (depends on 2)

The surgical stapler as recited in claim 2, wherein the at least one round projection is disposed near a distal end of the at least one of the staple cartridge and anvil.

### Claim 6 (depends on 4)

The surgical stapler as recited in claim 4, further comprising at least one other projection disposed near a proximal end of the at least one of the staple cartridge and anvil.

### Claim 7 (depends on 6)

The surgical stapler as recited in claim 6, wherein the at least one other projection has an elongate shape.

### Claim 8 (depends on 2)

The surgical stapler as recited in claim 2, wherein the at least one projection includes a neck portion and a bulbous portion.

### Claim 9 (depends on 2)

The surgical stapler as recited in claim 2, wherein the buttress material comprises a bioabsorbable material.

### Claim 10 (depends on 2)

The surgical stapler as recited in claim 2, wherein the buttress material comprises a natural biological polymer.

### Claim 11 (depends on 2)

The surgical stapler as recited in claim 2, wherein the staple cartridge defines at least one linear row of staple pockets.