06102271 is referenced by 643 patents and cites 15 patents.

A circular sapling instrument for the removal of hemorrhoids has a stapling end effector having a casing, a hollow staple driver within the casing, an annular blade having an open distal end is located within the staple driver, and a elongated interior drive shaft is reciprocable within the staple driver and the annular blade. A first inner chamber is defined between the staple driver and the interior drive shaft, and a second inner chamber is defined between the annular blade and the drive shaft. The first chamber communicates with the second chamber. The casing has an exterior surface and a substantially unobstructed passageway extends within the casing surface, into the first inner chamber, into the second inner chamber, and through the open distal end of the second inner chamber for insertion and withdrawal of a surgical instrument therethrough.

Title
Circular stapler for hemorrhoidal surgery
Application Number
9/197805
Publication Number
6102271
Application Date
November 23, 1998
Publication Date
August 15, 2000
Inventor
Federico Bilotti
Hamburg
DE
Randall L Hacker
Goshen
OH, US
John R Bittner
Loveland
OH, US
Antonio Longo
Palermo
IT
Agent
Matthew S Goodwin
Assignee
Ethicon Endo Surgery
OH, US
IPC
A61B 17/04
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