Abstract
Jpn. J. Artif. Organs 11 (3), 767-771 (1982) To avoid the air embolism during cardiopulmonary bypass, various bubble trapps have been used. But there were few reports that compared their debubbling abilities quantitatively. We compared six bubble trapps with regard to debubbling ability, pressure drop and influences for blood cell components. Four bubble trapps have microfilter. A; 40μm polyester screen filter, B; 20μm nylon screen filter, E; dacron wool filter, F; 25μm nylon screen filter. And other two, C and D, have not microfilter mechanisms. Debubbling abilities were studied by TM-8 Microbubble Activity Monitor. Four bubble trapps with microfilter were superior in debubbling abilities but it could not be denyed that these bubble trapps might bring on damages of blood cell components. Two, without microfilter, were poor in debubbling abilities. Bubble trap should meet two factors that are good debubbling abilities and little blood cell damages. At present A, B and F bubble trap were comparatively good for clinical use, but other new and better one should be deviced.
