Pumps – Expansible chamber type – Elongated flexible chamber wall progressively deformed
Patent
1989-04-07
1990-12-11
Smith, Leonard E.
Pumps
Expansible chamber type
Elongated flexible chamber wall progressively deformed
417479, F04B 4312
Patent
active
049765930
ABSTRACT:
A pulsatile flow delivery apparatus includes a horse shoe shaped raceway, a tube, a milking mechanism, an occlusive clamp and a control device. The tube is disposed along the raceway. The milking mechanism has a pivot shaft, a rotating arm fixedly secured to the shaft and one milking roller rotatably mounted on one end of the rotating arm. The occlusive clamp has a stationary component, a mobile component disposed in opposed relation to the stationary component, and an actuator connected to the mobile component for moving the mobile component toward and away from the stationary component to clamp and release the downstream portion of the tube. The timing of opening and closing of the occlusive clamp is controlled by the control device to produce a pulsatile flow.
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Meddiss, Incorporated
Smith Leonard E.
Szczecina Jr. Eugene L.
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