Autotransfuser

Details Autotransfuser Autotransfuser

1987-12-01

1990-02-06

Rosenbaum, C. Fred

Surgery

Blood drawn and replaced or treated and returned to body

A61M 3700

Patent

active

048985724

ABSTRACT:
An autotransfuser device for removing blood from a patient and returning the blood to the patient includes a collection bag suspended in an air jacket. A valve is provided in the device to selectively apply a negative pressure to the air jacket and the interior of the collection bag to draw the blood from the patient. The valve is subsequently rotated to apply a positive pressure to the air jacket and the outside of the bag to compress the bag and cause the blood to be returned to the patient. A plurality of filter members are provided in a collection chamber to remove blood clots and undesirable solids. A source of an anticoagulant may be provided in the collection chamber and in the collection bag.

REFERENCES:
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patent: 3221741 (1965-12-01), Le Veen
patent: 3585995 (1971-06-01), Perkins et al.
patent: 3827562 (1974-08-01), Esmond
patent: 4006745 (1977-02-01), Sorenson et al.
patent: 4014329 (1977-03-01), Welch et al.
patent: 4033345 (1977-07-01), Sorenson et al.
patent: 4157965 (1979-06-01), Raible
patent: 4170056 (1979-10-01), Meyst et al.
patent: 4440723 (1984-04-01), Gordon
patent: 4443220 (1984-04-01), Hauer et al.
patent: 4772256 (1988-09-01), Lane et al.

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