Closed system adapter for catheters

Details Closed system adapter for catheters Closed system adapter for catheters

1998-08-31

2000-12-26

Coggins, Wynn Wood

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604247, 604256, A61M 2516

Patent

active

061651680

ABSTRACT:
A closed system adapter for catheters is disclosed. The adapter comprises a rigid outer housing having an inlet end with an internal cavity, and outlet end with a central passageway, the outlet end having a series of incrementally larger diameter steps permitting connection to various sized catheters.
Positioned within the inlet end internal cavity is a resilient valve member normally biased to a sealed closed position. The valve member includes a generally cylindrical wall with a diaphragm with a pre-slit partitioned across the wall. The cylindrical wall dimensioned to be slightly larger in diameter than the inlet end cavity of the housing except for a recessed area where the diaphragm is positioned. The cylindrical wall providing inward compressive force except in the recess area permitting the diaphragm to remain in a steady state normally closed position without excessive inwardly compressive force.

REFERENCES:
patent: 5549657 (1996-08-01), Stern et al.
patent: 5578059 (1996-11-01), Patzer
patent: 5716347 (1998-02-01), Gibbs et al.
patent: 5718691 (1998-02-01), Russo
patent: 5720734 (1998-02-01), Copenhaver et al.
patent: 5792112 (1998-08-01), Hart et al.

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