| 摘要 |
A biomechanical heart comprising extra-aortic diastolic balloon pumping means consisting of a pump housing (7) arranged between two ducts (5, 9) of an aortic shunt (6) actuated by a muscle (8) energised by electric pulses. A balloon (15) with a substantially ring-shaped cross-section is inserted between the inner walls of the pump housing (7) to define an axial channel (17) communicating with said ducts (5, 9) of the aortic shunt (6). Said channel is connected via a flexible tube (19) to means (20) for injecting a gas flow into said balloon (15) to inflate same and thus reduce the cross-sectional area of flow of the axial channel (17), then deflating said balloon to increase said cross-sectional area of flow of the axial channel (17). |
