| 摘要 |
An artificial heart chamber is structured with a nondeformable housing, with valves being provided in the housing for admitting and ejecting blood from the chamber, the valves including valve openings which communicate with the chamber. A diaphragm is mounted within the chamber for movement through an operating cycle including an ejection phase whereby blood is ejected from the chamber through one of the valves. The diaphragm is actuated through its operating cycle by fluid pressure means and during the ejection phase of the operating cycle of the diaphragm, the diaphragm forms a cupola. The invention is particularly directed toward the arrangement of the diaphragm within the chamber whereby the cupola formed during the ejection phase of the diaphragm operating cycle comes to lie beneath the valve openings of the valves and whereby, as a result of the diaphragm arrangement, no dead water zones are formed during the operating cycle of the diaphragm. |
