Transfusion apparatus

Details Transfusion apparatus Transfusion apparatus

1986-07-30

1988-03-15

Coven, Edward M.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

417477, 604 67, A61M 514

Patent

active

047310570

ABSTRACT:
A transfusion apparatus including a pump section for sequentially pressing and occluding a transfusion tube by means of a plurality of finger elements of a peristaltic type thereby to feed a liquid, a detecting section having (1) a circuit for detecting a given reference position of the pump section to generate a corresponding detection signal during periodic peristaltic movement of the pump section and (2) a circuit for detecting a working position of the pump section deviated from the reference position through the peristaltic movement thereby to generate a corresponding detection signal, and a drive controlling section for receiving the detected signals from the detecting section to compute and control the peristaltic rate thereby to maintain a constant delivery amount by the pump section.

REFERENCES:
patent: 4199307 (1980-04-01), Jassnualla
patent: 4277226 (1981-07-01), Archibald
patent: 4373525 (1983-02-01), Kobayashi
patent: 4482347 (1984-11-01), Borsanyi
patent: 4493706 (1985-01-01), Borsanyi et al.
patent: 4563179 (1986-01-01), Sakai
patent: 4617014 (1986-10-01), Cannon et al.

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