Valve for a respirator

Details Valve for a respirator Valve for a respirator

1997-09-10

1999-07-27

Weiss, John

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

12820421, 12820422, A61H 1600

Patent

active

059272759

ABSTRACT:
A valve for a respirator with a closing member, which is located at a valve seat 6 and is actuated by an electric drive 12, is improved in terms of its dynamic properties. A detector for detecting a first electric signal present at the moving drive a simulator for simulating a second electric signal generated at the nonmoving drive are provided. A comparator forms a differential signal between the first electric signal and the second electric signal. A closed action (feed back loop) circuit sets the position of the closing element in relation to the valve seat according to a preset valve p.sub.s. The differential signal is applied to the control circuit are provided.

REFERENCES:
patent: 5758641 (1998-06-01), Karr
patent: 5813399 (1998-09-01), Isaza et al.

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