Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Patent
1985-07-09
1986-05-13
Howell, Kyle L.
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
12820511, 12820518, A61M 1600
Patent
active
045879672
ABSTRACT:
A variable flow reciprocating piston respirator system which is capable of providing a substantially constant oxygen enrichment over an entire inspiration stroke of a variable flow respirator output. A proportional control valve is used to deliver oxygen from an oxygen supply tank to the output of a reciprocation piston pump. A microprocessor controls the magnitude of opening of the proportional valve to insure that a proper overall volume of the output is produced with the proper percentage of enrichment of oxygen.
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Bergman Marc A.
Chu Raymond D.
Rubner Anthony C.
Cochran, II William C.
Haneiwich Daniel
Howell Kyle L.
Lifecare Services, Inc.
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