Paracentesis valve

Details Paracentesis valve Paracentesis valve

1994-02-14

1995-03-07

Weiss, John G.

Surgery

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

Treating material introduced into or removed from body...

137103, 1375123, 417559, 604 33, A61M 500, G05D 700

Patent

active

053953509

ABSTRACT:
Disclosed is a paracentesis valve apparatus and method of using the valve. The valve comprises a valve body having three apertures and a bypass passageway. A movable valve member with truncated end portions moves linearly within the valve body by means of hydraulic pressure alone. Application of negative hydraulic pressure via a syringe withdraws fluid from a body cavity through the valve into the syringe. Application of positive hydraulic pressure to the syringe pumps the fluid through the valve into a receptacle.

REFERENCES:
patent: 4023588 (1977-05-01), Olander
patent: 4210173 (1980-07-01), Choksi et al.
patent: 4210178 (1980-07-01), Morse et al.
patent: 4506691 (1985-03-01), Tseo
patent: 4782849 (1988-11-01), Hodge
patent: 4838866 (1989-06-01), Marshall

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