A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 17/28 (2006.01) A61B 18/14 (2006.01) A61B 19/00 (2006.01)
Patent
CA 2440309
An electrosurgical instrument is disclosed for performing at least one of sealing and dividing tissue. The instrument has a housing with a shaft attached thereto. A first jaw member is provided which is movable relative to a second jaw member. The first jaw member is attached to the shaft and is relatively movable from a first open position wherein the jaw members are disposed in spaced relation relative to one another to a second closed position wherein the jaw members cooperate to grasp tissue therebetween. A drive rod assembly is provided which imparts movement of the jaw members between the first and second positions. A handle assembly is attached to the housing. The handle assembly actuates the drive rod assembly. The handle assembly includes a four-bar mechanical linkage designed to reciprocate the drive rod assembly to actuate the jaw members between the first and second positions. The four-bar mechanical linkage includes two handles, a link and a rotating cam-like piston. The rotating cam-like piston, upon movement of the handles relative to one another, rotates to correspondingly translate the drive rod assembly to impart movement to the jaw members between the first and second positions.
L'invention concerne un instrument électrochirurgical comprenant un logement auquel est fixé un arbre qui relie une paire de premiers et seconds éléments de mâchoires de manière opposée les uns par rapports aux autres. Ces éléments se déplacent les uns par rapport aux autres d'une première position ouverte, où ils sont disposés à distance les uns des autres, vers une seconde position fermée, où ils coopèrent de façon à saisir le tissu entre eux. L'instrument comprend également un ensemble poignée pourvu d'une liaison mécanique à quatre éléments qui coopère avec un ensemble entraînement qui entraîne les premiers et seconds éléments de mâchoires de la première et de la seconde positions.
Dycus Sean T.
Farascioni David
Mcfadden Fincham
Sherwood Services Ag
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