专利名称：Pneumatic drive circuit for an artificial
ventricle including systolic pressure control
发明人：William A. Missfeldt申请号：US06/911598申请日：19860925公开号：US04808088A公开日：19890228
摘要：A pneumatic drive circuit for a pneumatically-driven artificial ventricle having agas chamber and a blood chamber separated by a flexible diaphragm. The drive circuitcomprises a source of pressurized gas at a preselected pressure. Valves operativelyassociated with the gas chamber of the ventricle admit gas to the gas chamber duringsystole and exhaust gas from the gas chamber during diastole. The drive circuit includespneumatic logic circuitry for actuating the valves. The logic circuitry includes circuitry forcausing the valves to admit gas to the gas chamber during systole at a pressure whichincreases gradually from zero pressure to a pressure less than the preselected pressure,and then increases rapidly to the preselected pressure.
申请人：TEMPLE UNIVERSITY OF THE COMMONWEALTH SYSTEM OF HIGHEREDUCATION
代理机构：Seidel. Gonda, Lavorgna & Monaco
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