Surgery – Truss – Perineal
Patent
1980-05-01
1982-02-09
Hirsch, Paul J.
Surgery
Truss
Perineal
128 64, 128DIG3, A61B 1700, A61B 1900
Patent
active
043145507
ABSTRACT:
A heart in induced arrest such as ischemic arrest during a surgical operation is treated to protect it from stiffness, rigor, contracture and a decrease in diastolic compliance or elasticity by periodically stretching the ventricular muscle throughout the period of arrest. The ventricular muscle is stretched by positioning a balloon within the ventricle and expanding that balloon by an incompressible fluid. Preferably, the ventricular volume is expanded such that the resultant pressure on the ventricle wall early in the period of arrest is about equal to the peak systolic pressure prior to arrest. A pressure transducer is associated with the balloon to provide an indication of diastolic properties of the ventricular muscle prior to and after stretching of the muscle.
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Hirsch Paul J.
The Trustees of Boston University
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