Surgery – Instruments – Electrical application
Patent
1991-04-22
1992-08-04
Aschenbrenner, Peter A.
Surgery
Instruments
Electrical application
128 3, A61B 112
Patent
active
051355264
ABSTRACT:
Redundant wall retractor is tubular and is obturated for insertion. It has a duct which terminates in an opening at the top of the anterior end and terminates with a tube fitting at the bottom at the posterior end. It is made of dielectric synthetic polymer composition material, preferably transparent to retract tissues during loop electrode excision procedures with the duct positioned for withdrawing smoke.
REFERENCES:
patent: 3132645 (1964-05-01), Gasper
patent: 4633865 (1987-01-01), Hengstberger et al.
patent: 4683884 (1987-08-01), Hatfield et al.
patent: 4719914 (1988-01-01), Johnson
Zinnanti William J.
Zinnanti, Jr. Anthony
Aschenbrenner Peter A.
Dicke, Jr. Allen A.
Zinnanti Surgical Instruments, Inc.
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