Prosthetic occlusive device for an internal passageway

Details Prosthetic occlusive device for an internal passageway Prosthetic occlusive device for an internal passageway

A - Human Necessities

61

F

3/130

A61F 2/00 (2006.01)

Patent

CA 1184357

Prosthetic Occlusive Device for an Internal Passageway Abstract An occlusive device is disclosed for surgical im- plant to occlude the lumen of an internal organ. The device includes a cuff A having a backing collar (10) and two isolated cuff chambers B and C. The fluid pressure of chamber B is regulated by a pump/valve reservoir unit E. Chamber C is unregulated in pressure but its fluid volume is adjusted by removing or adding fluid to a septum/reservoir D by means of a hypodermic needle. Pressure changes are transmitted between the two cuff chambers via faying surfaces (12) and (14) which are sufficiently large in contact area and thin as to transmit pressure generally without attenua- tion. By adjusting the fluid volume of septum D, the operating pressure of the device may be adjusted to accommodate tubular organs of different diameter sizes as well as to compensate for changes in the organ fol- lowing implant without re-operation.

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