Surgery – Instruments – Electrical application
Patent
1994-02-28
1995-09-12
Pellegrino, Stephen C.
Surgery
Instruments
Electrical application
604 21, 604 33, 606 45, A61B 1739
Patent
active
054493579
ABSTRACT:
The cautery instrument body has finger-operated valves for respective connection to sources of suction and irrigation. The valve plungers each have at least one O-ring which engages against a shoulder on the body when the valves are closed to cause positive shutoff when the valves are unactuated. The suction control valve has an adjustable stop to limit valve opening to control suction. The body has connection ports on each end so that it is reversible and has a clear polymer cannula attached in one of the ports for endoscopic utilization. The other port carries a cautery rod which can be extended out of the cannula. The suction and irrigation valves, the adjustable suction stop, and the cautery rod are all positioned so that they can be operated by the fingers of the hand which holds the body of the instrument.
REFERENCES:
patent: 2669233 (1954-02-01), Friend
patent: 3478743 (1969-11-01), Ericson
patent: 3835842 (1974-09-01), Iglesias
patent: 4451257 (1984-05-01), Atchley
patent: 5163926 (1992-11-01), Bailey
patent: 5186714 (1993-02-01), Boudreault et al.
patent: 5188591 (1993-02-01), Dorsey, III
patent: 5190541 (1993-03-01), Abele et al.
patent: 5195958 (1993-03-01), Phillips
Dicke, Jr. Allen A.
Peffley Michael
Pellegrino Stephen C.
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