Electroactive polymer based artificial sphincters and...

A - Human Necessities – 61 – F

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A61F 2/08 (2006.01) A61F 2/00 (2006.01) A61L 27/18 (2006.01) A61L 27/50 (2006.01)

Patent

CA 2490772

Provided are artificial muscle patches, which are adapted to be implanted adjacent a patient~s heart, and artificial sphincter cuffs, which are adapted to be implanted around a body lumen, such as the urethra, the anal canal, or the lower esophagus. The devices of the present invention comprise: (a) one or more electroactive polymer actuators; and (b) a control unit for electrically controlling the one or more electroactive polymer actuators to expand or contract the devices.

L'invention concerne des patches musculaires artificiels qui sont conçus pour être implantés à proximité du coeur d'un patient ainsi que des collerettes artificielles de sphincter qui sont conçues pour être implantées autour d'une lumière corporelle, telle que l'urètre, le canal anal ou l'oesophage inférieur. Les dispositifs selon l'invention comprennent : (a) un ou plusieurs activateurs en polymère électroactif ; et (b) une unité de commande qui permet de commander électriquement le ou les activateurs polymères électroactifs afin de dilater ou de contracter les dispositifs.

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