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Process and device for controlling artificial respiration

  • US 4,537,190 A
  • Filed: 12/07/1982
  • Issued: 08/27/1985
  • Est. Priority Date: 12/11/1981
  • Status: Expired due to Fees
First Claim
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1. Process for controlling the starting and stopping of an artificial respirator on a patient assisted by the artificial respirator during a surgical intervention of the patient'"'"'s respiration and for allowing the patient progressively to recover his capability to breath alone at the end of the surgical operation, characterised in that the starting and stopping of the respirator are controlled as a function of the CO2 content measured at the end of each expiration, FCO2ET, of the gas exhaled by the patient, such that the respirator is turned on when the CO2 content measured at the end of each expiration is outside of predetermined upper and lower limits for a predetermined period of time to provide controlled ventilation for the patient, and turned off when the CO2 content measured at the end of each expiration is within said limits to provide for spontaneous ventilation of the patient.

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