DEVICE OF ARTIFICIAL VENTILATION OF LUNGS Russian patent published in 2021 - IPC A61H31/00 F16K31/30 

FIELD: medical technology.

SUBSTANCE: invention relates to medical technology, namely to a ventilator designed for simultaneous ventilation of up to n patients. The device includes a stationary stator equipped with n uniformly distributed around the circumference windows of angular value γ_s with n breathing tubes connected to them for each of n patients and made with the ability to slide along its inner surface of the rotor containing compressed oxygen-air mixture under excess pressure, equipped with L windows of angular magnitude uniformly distributed around the circumference γ_ra=β/(1+b/а)-γ_s, where β=2π/L, a/b is the ratio of the durations of inhalation and exhalation. The rotor speed is f= ν/L, where ν is the required respiratory rate. The stator is made in the form of a compression chamber-receiver, the throat of which is narrowed, communicated with the lower open end of the rotor, while the upper end of the rotor is closed by a bearing circular plate - a power element made with the possibility of transmitting torque to the rotor from the drive shaft, made with the possibility of rotation with a small frequency f compared to respiratory rate ν. The oxygen-air mixture from the compression chamber-receiver can enter the inhalation tubes only when L rotor windows and n stator windows overlap. The windows of the stator on its outer surface are equipped with flaps made with the possibility of adjusting the height of these windows, and made with the possibility of connecting n breathing tubes to n windows of the stator, individually designed for n patients, at the other ends are equipped with non-reversible valves that include inhalation tubes into the airways of patients and the exhalation pipes directly into the atmosphere.

EFFECT: creation of an inexpensive, simple, reliable ventilator operating in the forced breathing mode by time, with the ability to simultaneously connect several patients to one ventilator at once, both without the risk of cross-infection or contamination of the device itself.

5 cl, 3 dwg