04256100 is referenced by 49 patents and cites 16 patents.

An anesthesia ventilator is disclosed for controlling the flow of air and/or oxygen through a plurality of binary weighted valves from a fluid regulator source to a bellows assembly. Directly-set minute volume, breath rate and inspiration to expiration ratio controls operate electronic circuitry which adjusts the magnitude of the flow, the tidal volume and the inhalation to exhalation times. The circuitry includes alarm detecting devices for alerting personnel that a patient should be ventilated manually, that a patient is disconnected from the instrument, that control settings exceed specifications for the instrument, that undesired low gas pressure exists and that actual inspiration to expiration is less than that of the control setting. Flow and tidal volume limiting apparatus is provided, together with sigh circuitry and devices for correcting for altitude and gas parameters.

Title
Flow control equipment
Application Number
6/11636
Publication Number
4256100
Application Date
February 12, 1979
Publication Date
March 17, 1981
Inventor
Tibor Rusz
Pittsfield
MA, US
Donald Levy
River Vale
NJ, US
Agent
Frederick W Padden
Assignee
Rule Medical Instruments
MA, US
IPC
A61M 16/00
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