Abstrakt: |
Mechanical devices to assist the failing heart have undergone considerable development during the past several years. Such systems, recently reviewed by Spencer and co-workers(1)', and Schenk and co-workers(2), include those for: left ventricular bypass(3), veno-arterial bypass(4), counter-pulsation(5), which has been accomplished by blood exchange via arterial cannulae, intra-aortic baloons and external body plastic suits, and post-systolic or diastolic augmentation(6). The purpose of this report is to present a diastolic augmentation system which was devised at The Johns Hopkins University School of Medicine(6)and which recently has been technically improved with the cooperation of the Westinghouse Corporation. |