Electrostatic blood defoamer for heart-lung machines

Details Electrostatic blood defoamer for heart-lung machines Electrostatic blood defoamer for heart-lung machines

1997-05-29

1999-03-09

Polutta, Mark O.

Surgery

Blood drawn and replaced or treated and returned to body

422 44, A61M 3700

Patent

active

058793178

ABSTRACT:
In a heart-lung machine, blood is defoamed without the use of defoaming chemicals by passing blood between parallel insulated electrodes whose electric field orients the blood protein molecules to break up the foam bubbles. The blood then passes into the venous reservoir through a bubble screen which traps any remaining bubbles.

REFERENCES:
patent: 4253456 (1981-03-01), Schindler et al.
patent: 4309592 (1982-01-01), Le Boeuf
patent: 5139684 (1992-08-01), Kaali et al.
patent: 5304164 (1994-04-01), Lindsay
patent: 5545130 (1996-08-01), Hofmann et al.
patent: 5685698 (1997-11-01), Smoll
Sonntag and Strenge, Coagulation and Stability of Disperse Systems, Halsted-Wiley, New York, 1972, p. 114.

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