Body-cavity drainage and autotransfusion system

Details Body-cavity drainage and autotransfusion system Body-cavity drainage and autotransfusion system

1990-04-16

1992-03-31

Hafer, Robert A.

Surgery

Blood drawn and replaced or treated and returned to body

604320, A61M 300

Patent

active

051003767

ABSTRACT:
A disposable, low cost autotransfusion device for suction assisted drainage of fluids from a body cavity of a patient, purification and collection of the desired liquids within said fluids, primarily blood, for reinfusion into said patients said device comprising a) a housing comprising an accumulation chamber, inlet means, in fluid connection with said cavity, through which said fluids enter the chamber, the discharge stem of which terminates in a one-way valve to prevent backflow of gases from said chamber to said cavity in the event the pressure within the cavity becomes less than that within the chamber, filter means to remove unwanted materials, such as debris, from the draining fluids, disposed between said one-way valve and inlet stem and the chamber, first outlet means in fluid connection with a vacuum source through which suction is applied to said chamber and second outlet means in fluid connection with b) an autotransfusion bag comprising outlet means comprising a break seal for connection to the patient for reinfusion of his blood said bag comprising a flexible, collapsible container.

REFERENCES:
patent: 3187750 (1965-06-01), Tenczar, Jr.
patent: 4014329 (1977-03-01), Welch et al.
patent: 4047526 (1977-09-01), Reynolds et al.
patent: 4275732 (1981-06-01), Gereg
patent: 4650477 (1987-03-01), Johnson

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