Pumps – Condition responsive control of pump drive motor – Having timer or delay means
Patent
1994-01-14
1996-05-07
Berisch, Richard A.
Pumps
Condition responsive control of pump drive motor
Having timer or delay means
471315, 471415, 471395, 4714131, 623 3, F04B 4900
Patent
active
055139566
ABSTRACT:
A balloon pump for a circulatory assist device, the pump comprising a pumping chamber of variable volume in which a diaphragm assembly is displaceable in first and second pumping directions to inflate and deflate the balloon, the diaphragm assembly comprising a diaphragm sandwiched between a pusher plate and a retainer plate where the pusher plate and retainer plate are affixed to an elongated shaft having an external threaded portion disposed in a planetary roller nut, a rotor assembly is affixed to the roller nut and a stator assembly is disposed outwardly of the rotor assembly to impart bidirectional rotation to the roller nut to cause the shaft and diaphragm assembly to move in the first and second pumping directions, the pump communicating with a pump control unit and microprocessor for controlling pump operation.
REFERENCES:
patent: 3266487 (1966-08-01), Watkins et al.
patent: 3572979 (1971-03-01), Morton
patent: 3610782 (1971-10-01), McGuire, III
patent: 3720199 (1973-03-01), Rishton et al.
patent: 3720200 (1973-03-01), Laird
patent: 3769960 (1973-11-01), Robinson
patent: 4074586 (1978-02-01), Nussbaum
patent: 4272225 (1981-06-01), Fujunaka et al.
patent: 4332254 (1982-06-01), Lundquist
patent: 4439186 (1984-03-01), Kuhl
patent: 4771765 (1988-09-01), Choy et al.
patent: 4794910 (1989-01-01), Mushika
patent: 4822357 (1989-04-01), Forster et al.
patent: 4832005 (1989-05-01), Takamiya et al.
patent: 5006104 (1991-04-01), Smith et al.
patent: 5152776 (1992-10-01), Pinchuk
patent: 5158529 (1992-10-01), Kanai
patent: 5169379 (1992-12-01), Freed et al.
patent: 5173015 (1992-12-01), Maynard
patent: 5186615 (1993-02-01), Karliner
patent: 5282850 (1994-02-01), Davidson
Frank Daniel J.
Lewis Jeffrey P.
Newswanger Ray K.
Arrow International Investment Corp.
Berisch Richard A.
Thai Xuan M.
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