US 11,759,205 B2 · Low inherent viscosity bioabsorbable polymer adhesive for releasably attaching a staple buttress to a surgical stapler

Abstract

A surgical stapler end effector comprises a staple cartridge, an anvil, and a buttress assembly. The staple cartridge comprises a plurality of staples and a deck. The staple cartridge is operable to drive the staples through the deck. The anvil is movable from an open position toward the staple cartridge to reach a closed position. The anvil includes an underside having staple forming surface configured to receive staples driven through the deck. The buttress assembly comprises a buttress body and an adhesive material. The adhesive material comprises a polymer. The polymer is bioabsorbable. The polymer has an inherent viscosity at or below 3.0 dL/g.

Claims20

Dependent claims

A buttress assembly comprising:

(a) a buttress body;
and
(b) a layer of adhesive material disposed on a surface of the buttress body, wherein the adhesive material comprises a bioabsorbable copolymer that includes a composition selected from the group consisting of:
(i) lactide and caprolactone,
(ii) lactide and trimethylene carbonate,
(iii) trimethylene carbonate and caprolactone,
(iv) caprolactone and glycolide,
(v) propanediol and caprolactone, and
(vi) propanediol, caprolactone, and trimethylene carbonate.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/088,243Filed 3 Nov 2020 · continuation

Priority

25 Mar 2015

Published

US 2021/0113206 A122 Apr 2021

Granted

19 Sep 2023

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

A61B 17/072
Surgical staplers , e.g. containing multiple staples or clamps: for applying a row of staples in a single action, e.g. the staples being applied…
A61B 17/07207
For applying a row of staples in a single action, e.g. the staples being applied simultaneously: the staples being applied sequentially
A61B 17/07292
For applying a row of staples in a single action, e.g. the staples being applied simultaneously: reinforcements for staple line, e.g. pledgets
A61L 24/046
Containing macromolecular materials: obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds

Family

Application14/667,892Parent of this continuation · filed 25 Mar 2015

US 2021/0113206 A1Pre-grant publication · published 22 Apr 2021

US 10,863,984 B2Parent of this continuation

US 2016/0278771 A1Published application

US 11,759,205 B2This patent

From the US filing history. Foreign family members aren’t listed.

Low inherent viscosity bioabsorbable polymer adhesive for releasably attaching a staple buttress to a surgical stapler

Life of this patent

Low inherent viscosity bioabsorbable polymer adhesive for releasably attaching a staple buttress to a surgical stapler

Life of this patent

Abstract

Claims20