Bidirectional check valve catheter

摘要: A valved catheter is disclosed having an elongated, flexible tubular element defining a lumen extending along axis substantially parallel to the central of element, and bidirectional check valve assembly near its distal end which controls fluid flow in element. The includes aspiration offset from tip infusion formed at end. generally defined by port(s) sleeve within underlying ports, where normally closes ports. permits bloodstream into when static pressure inside lower than outside amount sufficient displace allow through throat tapers down mouth jaws tip. essentially closed inflow patient outflow patient. sidtal higher force open. bidirectionally multiple also disclosed.