| 摘要 |
Pulsatile flow in synchronization with the systole and diastole of a patient's own pulse is generated during auxiliary circulation therapy administered to a patient under cardiac dysfunction. As a result, the diastole augmentation function is maintained, blood flow to the coronary artery is increased, and the therapeutic effect of intending to restore cardiac function without applying after-loading to the heart is improved. Pulsatile flow generation control device Y incorporated in a pulsation-type auxiliary circulation system (X) as an apparatus system having an electromagnetic valve 7 in blood supply lines ( 4, 6, 8 ) on the delivery side of artificial lung 5 and a control means 11 for performing control-output relating to the opening and closing operation of the electromagnetic valve 7 . The control means 11 has at least a delay circuit and is such that the electromagnetic valve 7 is actuated to close and is maintained closed for a predetermined time interval based on delay detection and is actuated to open based on delay cancellation so that blood flow is periodically interrupted. |
