04304236 is referenced by 433 patents and cites 8 patents.

Apparatus for circular surgical stapling of hollow organs comprising an instrument and disposable cartridge assembly. The instrument comprises a housing with a throughbore in which a tube that is received for reciprocation by means of a manually operable squeeze handle. A rod reciprocates within the tube by means of a wing nut cooperating with a threaded part of the rod. A two-part disposable cartridge assembly comprised of an anvil-carrying part and a staple-carrying part are detachably mounted on the rod and housing, respectively. Keys are provided to hold the anvil-carrying part and the staple-carrying part in rotational orientation relative to the rod. Mutually coacting stops on the tube and rod determine the extent of reciprocation which is variable in dependence upon the position of the rod which, in turn, is dependent upon the juxtaposition of the anvil-carrying part with the staple-carrying part when the apparatus is closed on tissue preparatory to effecting a circular anastomoses. A novel geometric configuration for the anvil-carrying part is provided for easy removal of the instrument from a stapled anastomosis. Further, the interior of the stapling mechanism is generously vented to prevent the build up of excessive pressure in tissue confined within the stapling mechanism.

Title
Stapling instrument having an anvil-carrying part of particular geometric shape
Application Number
800965
Publication Number
4304236
Application Date
April 10, 1980
Publication Date
December 8, 1981
Inventor
Harvey N Wallach
Trumbull
CT, US
Robert L Conta
Trumbull
CT, US
Agent
John E Nathan
Robert R Jackson
Assignee
United States Surgical Corporation
CT, US
IPC
B31B 1/00
A61B 17/04
A61B 17/12
A61F 17/32
View Original Source