Circular stapling device with buttress

Patent metadata

Field	Value
Publication number	US-9504470-B2
Application number	US-201414156713-A
Country	US
Kind code	B2
Filing date	Jan 16, 2014
Priority date	Feb 25, 2013
Publication date	Nov 29, 2016
Grant date	Nov 29, 2016

Abstract

The cartridge assembly includes a housing, a pusher member, a fastener cartridge body, a circular cartridge buttress member, and a retaining ring member. The pusher member is supported within the housing and movable between a first position and a second position. The fastener cartridge body is supported on the housing and has a tissue engaging surface that extends to an annular edge. One or both of the housing and the fastener cartridge body define an annular containment groove. The circular cartridge buttress member has a body portion and an extension portion. The body portion is supported on the tissue engaging surface of the fastener cartridge body. The extension portion extends from the body portion and over the annular edge of the tissue engaging surface. The retaining ring member is secured within the containment groove to releasably secure the extension portion of the circular cartridge buttress member to the cartridge assembly.

First claim

What is claimed is:

1. A circular stapling device, comprising:
a handle assembly;
an elongate body that extends from the handle assembly;
a cartridge assembly mounted on a distal end of the elongate body, the cartridge assembly defining an annular containment groove, the cartridge assembly including:
a housing;
a pusher member supported within the housing and being movable between a first position and a second position; and
a fastener cartridge body supported on the housi…

Assignees

• Covidien Lp

Inventors

• Milliman Keith L

Classifications

• A61B17/07292

  Human Necessities · mapped topic

• A61B2017/07285

  Human Necessities · mapped topic

• A61B17/1155 Primary

  Human Necessities · mapped topic

• A61B2017/07271

  Human Necessities · mapped topic