Patent ID: 6533719
Filing Date: 2003-03-18
Classification: A61F,Y10T

Abstract:
A penile prosthesis comprising:a housing; a fluid inlet to the housing, coupleable to a reservoir; a fluid outlet from the housing coupled to an inflatable cylinder; a fluid passageway coupling the fluid inlet to the fluid outlet; an input chamber coupling the fluid inlet to the fluid passageway; a first check valve disposed within the fluid passageway and biased towards a closed position; a second check valve disposed within the fluid passageway and biased towards a closed position; a pump bulb in fluid communication with the fluid passageway between the first and second check valves; and a bypass passageway fluidly coupling the input chamber to an expansion chamber located proximate the second check valve, wherein the expansion chamber includes a flexible wall portion that is able to contact the second check valve and urge the second check valve towards the closed position when fluid pressure within the expansion chamber exceeds a predetermined value.