Patent ID: 6682503
Filing Date: 2004-01-27
Classification: A61F,F16K,Y10T

Abstract:
An anti-reflux valve sized to be disposed within a catheter for one-way passage of fluids from a patient and to a collection reservoir, comprising:a catheter having a first end adapted to be inserted into the patient, and having a second end adapted to be releasably attached to the collection reservoir, and having a body segment having a substantially continuous interior surface extended between said first and second ends; a check valve adapted to be received within said catheter, including: a proximal end having a perimeter bonded along a periphery to said interior surface of said catheter, said proximal end oriented toward said first end of said catheter, said proximal end remains substantially open for passage of fluids therethrough; a distal end being biased to closure after discharge of fluids through said distal end, said distal end oriented toward said second end of said catheter; and a length of flexible material forming continuous walls of said check valve, said length of flexible material being extended between said proximal end and said distal end, said length of flexible material being pliable along a length dimension; wherein said check valve allows flow of fluids from said catheter first end through said proximal end and through said distal end toward said catheter second end, but restricts reverse flow of fluids after being discharged from said distal end of said check valve.