FIELD: medical equipment. SUBSTANCE: apparatus has two blood pumps, i. e. , diaphragm and centrifugal pumps. Diaphragm pump has inlet branch pipe with valve and outlet branch pipe connected to inlet pipe of centrifugal pump. Diaphragm and centrifugal pump are connected with their sides. Diaphragm pump has independent small-sized drive. Employment of two pumps and pump connection method reduces blood hemolysis and injury. Blood injection apparatus of such construction may be used in units for giving mechanical aid to heart. EFFECT: increased efficiency, simplified construction and improved circulatory dynamics.
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Authors
Dates
2000-07-27—Published
1998-01-30—Filed