US 6,945,444 B2 · Surgical stapling device for performing circular anastomoses

Abstract

This application is directed to a surgical stapling device for performing circular anastomoses. The stapling device includes a retractable trocar which is slidably supported by an anvil retainer and movable from a retracted position located within the anvil retainer to an advanced position extending from the anvil retainer. The trocar defines a sensor and is operatively connected to an indicator assembly. The indicator assembly is operatively associated with an anvil assembly such that the indicator will not move from a fire-not ready position to a fire-ready position until an anvil assembly has been mounted to the anvil retainer.

Claims20

Dependent claims

A surgical stapling device comprising:

a handle portion;
an elongated body portion extending distally from the handle portion;
a head portion including an anvil assembly and a shell assembly housing a plurality of staples, the anvil assembly being movable in relation to the shell assembly between spaced and approximated positions;
an approximation mechanism including an anvil retainer adapted to releasably engage the anvil assembly;
and
a retractable trocar assembly including a trocar slidably supported by the anvil retainer, the trocar being movable between a retracted position located within the anvil retainer to an advanced position extending from the anvil retainer.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

10/472,402Filed 3 Apr 2002 · us provisional application

Priority

3 Apr 2001

Published

US 2005/0023325 A13 Feb 2005

Granted

20 Sep 2005

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

A61B 17/1155
Staplers for performing anastomosis, e.g. in a single operation: circular staplers comprising a plurality of staples
A61B 17/115
For performing anastomosis; Buttons for anastomosis: staplers for performing anastomosis, e.g. in a single operation
A61B 17/34
Surgical instruments, devices or methods: trocars; Puncturing needles
A61B 2017/00128
With audible or visual output: related to intensity or progress of surgical action

Family

Application60/281,259Us provisional application · filed 3 Apr 2001

Application60/327,653Us provisional application · filed 5 Oct 2001

Application60/363,715Us provisional application · filed 11 Mar 2002

US 2005/0023325 A1Pre-grant publication · published 3 Feb 2005

US 6,945,444 B2This patent

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

Surgical stapling device for performing circular anastomoses

Life of this patent

Surgical stapling device for performing circular anastomoses

Life of this patent

Abstract

Claims20