Scanning-electron-microscopic and functional studies of oxygenator-membranes during long-term-perfusion
Herzer, J.A.; Bircks, W.; Falke, K.; Rosenbauer, K.A.; Schulte, H.D.
Journal of Cardiovascular Surgery 18(1): 35-41
1977
ISSN/ISBN: 0021-9509 PMID: 833189 Document Number: 110770
Various types and amount of deposits were noted on the surface of different membrane oxygenators during experimental long-term perfusion in sheep studied by SEM. They were present in spite of adequate heparinization. The deposition of blood material suggests, that the imperfection of the membranes by fabrication must be controlled and improved by oneself for use in long-term perfusion.