Surgery – Instruments – Electrical application
Patent
1997-05-09
1999-11-16
Cohen, Lee
Surgery
Instruments
Electrical application
606 45, A61B 1739
Patent
active
059849207
ABSTRACT:
A rotatable sphincterotome/papillotome is inserted into a flexible endoscope and is used for orienting the distal cutting wire tip of the rotatable sphincterotome/papillotome in a twelve o'clock position, where the distal cutting wire tip cuts the sphincter muscle of a patient. The sphincterotome has a housing and a flexible tubular member protruding from the housing. A slidable member is slidably connected on the housing for moving the distal cutting wire tip in a longitudinal direction to cut the sphincter muscle. A ratchet mechanism is rotatably attached to the housing for orienting the angle of the distal cutting wire tip to a correct cutting position, where the gripping assembly is rotatable on the ratchet mechanism. To change the angle of the distal cutting wire tip of the sphincterotome, a user must use one hand to hold the ratchet mechanism while the other hand rotates the housing, and thereby the angle of the distal cutting wire tip changes to a specific degree. The ratchet mechanism is able to change the angle of the cutting wire by rotating it to the desired degree so that the angle of the cutting wire will be at the correct cutting position when the cutting takes place.
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Chen Tony D.
Cohen Lee
Fong Jerry
Gibson Roy
Medi-Globe Corporation
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