Process for operating a ventilator and ventilator operating according to the process
AssigneeDrägerwerk AG & Co. KGaA
InventorsHans-Ullrich Hansmann, Karsten Hiltawsky
Life of this patent
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Abstract
A process for operating a ventilator (12) and a ventilator (12) operating according to the process are provided. A pressure target value (pz) is determined during a phase of exhalation (48) as a function of a compliance (C) determined in relation to the lungs (14) of a patient being ventilated by means of the ventilator (12).
Claims11
A process for operating a ventilator, the process comprising the steps of:
- ventilating a patient with the ventilator;
- determining a compliance in relation to the lungs of a patient being ventilated with the ventilator via a control unit based on input from a sensor system;
- and
- determining a pressure target value during a phase of exhalation as a function of the determined compliance via the control unit.
A ventilator comprising:
- a ventilator module comprising a breathing gas delivery unit, an inhalation branch connection and an exhalation branch connection;
- a sensor system;
- and
- a control unit configured to:
- determine a compliance in relation to the lungs of a patient being ventilated with the ventilator based on input from the sensor system;
- and
- determine a pressure target value during a phase of exhalation as a function of the determined compliance.
A patient module of a ventilator comprising a ventilator comprising a breathing gas delivery unit, an inhalation branch connection and an exhalation branch connection, a sensor system;
- and a control unit configured to determine a compliance in relation to the lungs of a patient being ventilated with the ventilator based on input from the sensor system and to determine a pressure target value during a phase of exhalation as a function of the determined compliance, the patient module comprising:
- signal connections to the ventilator module for the purpose of signal transmission;
- fluid connections to the ventilator module for admitting inhalation gas to detect an inhalation pressure;
- and
- sensors configured to determine measured values for determining a compliance of lungs of the patient being ventilated by means of the ventilator, the determined compliance being provided as output for determining the pressure target value during the phase of exhalation.
Dependencies are inferred from the claim text.