Surgery – Instruments – Electrical application
Patent
1997-01-27
2000-01-25
Thaler, Michael H.
Surgery
Instruments
Electrical application
606110, A61B 1736
Patent
active
060173408
ABSTRACT:
A papillotome has an elongated sheath and plural longitudinal lumens, a proximal end and a distal end wherein the sheath is sized to be received within an endoscopic lumen. The distal end has a pre-curved shape memory tip for controlling the bending and orientation of the distal end. The pre-curved shape memory tip has a set configuration wherein the tip retains the set curve configuration when the distal end is in a relaxed configuration. A cutting wire having a longitudinal cutting edge is located along the distal end of the sheath which is movable in a cutting plane. The cutting wire is connected to a conductor disposed within one lumen of the sheath. A guidewire is disposed within another lumen of the sheath for guiding the pre-curved shape memory tip within the endoscopic lumen. A third lumen may be provided for delivering or injecting a fluid such as contrast. The package for the papillotome includes curve retention device which retains the pre-curved shape memory tip in the set curve configuration during transit and storage.
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Cassidy Todd
Dimitriou John
C.R.Bard
Thaler Michael H.
Wiltek Medical Inc.
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