Occlusion detection means for a persistaltic pump

Details Occlusion detection means for a persistaltic pump Occlusion detection means for a persistaltic pump

1999-02-26

2000-11-21

Freay, Charles G.

Pumps

With signal, indicator, or inspection means

F04B 4900

Patent

active

061493945

ABSTRACT:
A peristaltic pump delivering a medicant through a plastic tube with an appropriate wall thickness to withstand external rubbing contact with the rotating rotor of the pump, in which downstream of the rotor a tubing length is used in the plastic tube having a thinner wall thickness so that when a downstream occulsion is detected, the pressure build-up transmitted upstream to the tubing length more readily causes it to undergo an expansion radially because of its thinner wall to actuate an on-off switch of the peristaltic pump.

REFERENCES:
patent: 4702675 (1987-10-01), Alvondrovandi et al.
patent: 5067879 (1991-11-01), Carpenter
patent: 5103211 (1992-04-01), Daoud et al.
patent: 5657000 (1997-08-01), Ellingboe

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