Surgery – Devices transferring fluids from within one area of body to...
Patent
1992-01-15
1993-01-05
Hafer, Robert A.
Surgery
Devices transferring fluids from within one area of body to...
604 9, 604286, A61M 2500
Patent
active
051766264
ABSTRACT:
An indwelling stent is disclosed which facilitates the drainage of fluids through a duct within the body, and which is easily removed when needed. The disclosed stent is a double wing stent and includes multiple flaps at each end for anchoring and has a continuously uninterrupted drainage tube therebetween. Constructed at the outflow end of the stent is a wick, which is made of an extended arcical section of the drainage tube of the stent and serves to enhance drainage by providing a "wicking" effect for fluid as it exits the stent's outflow end, while inhibiting reflux by allowing for the sphincter at the exit of the obstructed duct to function in a normal manner. The wick further serves to facilitate removal by providing a portion which is easily graspable by an instrument inserted into the body for retention and removal.
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Hafer Robert A.
Rimell Sam
Wilson-Cook Medical Inc.
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