A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 16/04 (2006.01) A61M 16/00 (2006.01)
Patent
CA 2064264
ABSTRACT OF THE DISCLOSURE A jet ventilator system for assisting a person's respiration includes a source of gas under pressure, a tracheal tube for insertion into the mouth and throat of the person, a jet nozzle disposed in the tracheal tube for directing gas pressure pulses toward the end of the tracheal tube inserted into the person's mouth, a primary delivery conduit coupled between the source of gas and the tracheal tube for delivering gas under pressure to the jet nozzle, a control unit coupled to the primary delivery conduit for selectively varying the flow rate through the jet nozzle, and an exhaust conduit coupled to the tracheal tube for carrying air exhaled by the person. The control unit includes a control delivery conduit coupled between the primary delivery conduit and the tracheal tube for delivering gas under pressure from the primary delivery conduit to the tracheal tube to a location near the jet nozzle, and an inhalation valve disposed in the control delivery conduit for selectively varying the pressure of gas flowing through the control delivery conduit to the tracheal tube and thus the gas flow rate through the jet nozzle. In this manner the inhalation valve controls the pressure pulses, both magnitude and frequency, present in the tracheal tube which are providing the ventilation for the person.
Atkins Roger L.
Bunnell Incorporated
Smart & Biggar
LandOfFree
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