Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Patent
1985-06-25
1987-10-27
Croyle, Carlton R.
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
12820514, A61M 1600
Patent
active
047022426
ABSTRACT:
Anesthesia or respirator apparatus is disclosed for supplying a gas stream to a patient, including a ventilator for delivering the gas stream, including an inhalation conduit and a compressible bag or bellows, with the gas stream being in contact with the inner surface of the compressible bag and with its outer surface being in contact with a propellant gas stream so that an increase in pressure in the gas stream within the compressible bag can be created by application of the propellant gas against the outer surface of the bag, and including a manual pump associated with the propellant gas stream so that increased pressure can be created in the propellant gas stream, thus resulting in application of the propellant gas stream against the outer surface of the bag, by actuation of the manual pump, and a resultant increase in the pressure in the gas stream within the bag, in turn resulting in an increased flow of the gas stream through the inhalation conduit to the patient.
REFERENCES:
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patent: 3307542 (1967-03-01), Andreasen
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Broddner Sven M.
Bromster Leif
Lundell Ulf
Pilenvik Goran S.
Croyle Carlton R.
Gambro Engstrom AB
Olds Ted
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