Tri-bending sphinctertome

Details Tri-bending sphinctertome Tri-bending sphinctertome

2006-05-01

2010-11-16

Cohen, Lee S (Department: 3739)

Surgery

Instruments

Electrical application

C606S113000, C606S170000

Reexamination Certificate

active

07833223

ABSTRACT:
Disclosed herein are devices and methods for forming multidirectional cuts in tissue. The tissue cutting devices disclosed herein generally include a flexible elongate member with at least first, second, and third wires that are at least partially constrained within or along a portion of the member. A distal portion of the wires is anchored on or within a portion of the elongate member. When tension is applied to at least one of the wires, such as by an actuator at a proximal end of the device, the elongate member bows while an unconstrained portion of the wire becomes exposed relative to the adjacent portion of the elongate member, assuming a tissue-cutting configuration.

REFERENCES:
patent: 4325374 (1982-04-01), Komiya
patent: 5075062 (1991-12-01), Karpiel
patent: 5810807 (1998-09-01), Ganz et al.
patent: 2003/0208219 (2003-11-01), Aznoian et al.
patent: 2007/0255299 (2007-11-01), Vakharia et al.
patent: 3347122 (1985-06-01), None
Hintze, et al., “Endoscopic Sphincterotomy Using an S-Shaped Sphincterotome in Patients with a Billroth II or Roux-en-Y Gastrojejunostomy”, Endoscopy, 1997, 74-8, vol. 29(2).

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