Endoscopic diathermic knife

Details Endoscopic diathermic knife Endoscopic diathermic knife

1997-01-27

2000-01-25

Dvorak, Linda C. M.

Surgery

Instruments

Electrical application

606 47, A61B 1736

Patent

active

060173394

ABSTRACT:
The knife has the flexible, electrically insulating casing (24) inserted into a body cavity via an endoscope. A wire within this casing receives the HF current from a HF source and can be displaced to project relative to a suction opening (38) at the distal end of the casing to define the cutting zone (42).
The operating device at the proximal end of the casing has a suction mouthpiece coupling to the suction opening (38). The casing is strengthened via an inserted support ring (56) between the suction opening (38) and the cutting zone (42) and/or via an internal strengthening wire (50).
ADVANTAGE--Prevents blockage of suction path during bending. (20 pp Dwg.No. 6/13)

REFERENCES:
patent: 5024617 (1991-06-01), Karpiel
patent: 5323768 (1994-06-01), Saito et al.
patent: 5487757 (1996-01-01), Truckai et al.
patent: 5715817 (1998-02-01), Stevens-Wright et al.

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