METHOD OF IMPLEMENTATION OF ARTIFICIAL LUNG VENTILATION AND APPARATUS FOR ARTIFICIAL LUNG VENTILATION IN WHICH THIS METHOD IS IMPLEMENTED Russian patent published in 2018 - IPC A61H31/02 

FIELD: medicine.

SUBSTANCE: group of inventions refers to the field of medicine, anesthesiology, resuscitation and intensive care. Determine the target respiratory minute volume on the basis of the ideal body weight and the specific coefficient of respiratory minute volume. Calculate the ratio of the respiratory rate and the respiratory volume corresponding to the minimum respiratory work. Then, the safe limits of respiration rate, respiratory volume, inspiratory and expiratory time are calculated, and the target respiratory minute volume is retained with a change in the respiratory rate in the calculated safe limits. In addition, the starting specific coefficient of the respiratory minute volume is additionally set. Moreover, the respiratory minute volume is automatically corrected within the preset range when the spontaneous respiration rate leaves the calculated dynamic range, but not less than the respiratory minute volume established with the starting factor of the respiratory minute volume. Apparatus for implementing the process, comprising a gas mixer, flow sensor, flow generator, the main line of inspiration and expiration, pressure sensors located in the highways of inspiration and expiration, the expiration valve and the flow sensor located at the expiration valve outlet, a ventilation controller electrically connected to a gas mixer, flow sensors, flow generator, expiration valve and pressure sensors, and an input and output device connected to the ventilation controller. In this case, the ventilation controller is configured to receive data from the flow and pressure sensors, calculate the parameters of the volume of inspiration, compliance and aerodynamic resistance, calculate the ratio of respiratory rate and respiratory volume, corresponding to the minimum respiratory work, calculate the safe limits of the respiration rate, the respiratory volume, the inspiration and expiration time, the retention of the target respiratory minute volume with a change in the respiratory rate in the calculated safe limits, adjusting the minute volume of respiration within a predetermined range when the spontaneous respiration rate leaves the calculated dynamic range by controlling the action on the flow generator and expiration valve.

EFFECT: method and the device allow the artificial lung ventilation, provide a full cycle of patient ventilation, from fully hardware ventilation in conditions of deep anesthesia to weaning from the apparatus with stable spontaneous breathing, provide the necessary support for pressure for each of the phases, and for their combination with minimal operator intervention during the transition from one phase to another.

17 cl, 1 dwg, 1 tbl