Blood processing apparatus of hollow fiber type

Details Blood processing apparatus of hollow fiber type Blood processing apparatus of hollow fiber type

1989-12-27

1992-08-18

Kummert, Lynn M.

Chemical apparatus and process disinfecting, deodorizing, preser

Blood treating device for transfusible blood

Oxygenator

21032181, 2103219, 2104161, 128DIG3, 261DIG28, A61M 103

Patent

active

051397412

ABSTRACT:
A housing accommodates a hollow fiber bundle such that a blood port zone is defined between an open end surface of the hollow fiber bundle and an inner wall surface of the housing. The blood port zone includes an increased distance space, which is formed annularly along an edge portion of the open end surface of the hollow fiber bundle and communicates with the blood port, and a small distance space, which communicates with the blood port and has an end wall surface substantially parallel to V, and at a small distance from V, the open end surface of the hollow fiber bundle. A movable member, such as a flexible membrane facing the end surface of the hollow fiber bundle, is provided for varying the volume of the blood port zone. A restriction is provided for restricting the movement of the movable member. Due to a difference in resistance offered to blood between the increased and small distance spaces, blood flows uniformly over the entire end surface of the hollow fiber bundle, thus positively preventing stagnation of blood in the blood port zone.

REFERENCES:
patent: 4374802 (1983-02-01), Fukasawa
patent: 4424190 (1984-01-01), Mather et al.

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