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Microprocessor-controlled ventilator system and methods

  • US 5,692,497 A
  • Filed: 05/16/1996
  • Issued: 12/02/1997
  • Est. Priority Date: 05/16/1996
  • Status: Expired due to Fees
First Claim
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1. A ventilator system, comprising:

  • A. a pneumatic subsystem for receiving one or more gases and for establishing a flow path to a patient insert at a distal end,B. at least one sensor,C. at least one actuator operatively coupled to the pneumatic subsystem; and

    D. a microprocessor subsystem connected to receive information from the sensor and to control the actuator, the microprocessor subsystem having means for selecting at least one ventilation mode and for controlling gas flow in the flow path of the pneumatic subsystem in a manner corresponding to the mode and for controlling the actuator in response to signals generated from the sensor to vary at least one of the group consisting of inspiratory-to-expiratory ratio (I;

    E), (ii) a respiratory rate and the I;

    E ratio, and (iii) an intratracheal pulmonary flow to establish predetermined carinal pressures in a patient.

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