Surgery – Truss – Perineal
Patent
1976-04-12
1977-04-05
Pellegrino, Stephen C.
Surgery
Truss
Perineal
128DIG3, 3 14, 417389, A61B 1900
Patent
active
040155900
ABSTRACT:
A pneumatically driven balloon activated blood pump for connection either in parallel with or to one side of the heart for temporary mechanical support of an inadequately functioning heart. A tubular conduit with a sealable opening for insertion or removal of the balloon having an inlet and an outlet for connection to the circulatory system. A gas line extends from outside of the conduit through the opening and into the conduit and is connected to an inflatable balloon which is expanded and contracted by gas to form the blood propelling member. An inlet and an outlet valve are positioned on opposite sides of the balloon to provide unidirectional flow of blood through the pump. The inlet valve may be a separate occluder balloon connected to and actuated from the gas line or may be a portion of the balloon occluding the inlet side of the conduit during inflation. An outlet valve may be attached to the pump balloon. The inflatable balloon and valves may be insertable and removable through one or more sealable openings.
REFERENCES:
patent: 3504662 (1970-04-01), Jones
patent: 3692018 (1972-09-01), Goetz et al.
patent: 3769960 (1963-11-01), Robinson
patent: 3885251 (1975-05-01), Pedroso
patent: 3939820 (1976-02-01), Grayzel
Baylor College of Medicine
Pellegrino Stephen C.
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