Surgery – Respiratory method or device – Means for mixing treating agent with respiratory gas
Patent
1974-07-02
1976-08-24
Michell, Robert W.
Surgery
Respiratory method or device
Means for mixing treating agent with respiratory gas
1281422, 137505, A61M 1600
Patent
active
039760677
ABSTRACT:
A gas dispensing assembly suitable for dispensing oxygen from a vessel pressurized to 1800 pounds per square inch, the assembly including a manually operable eccentric member to turn supply of oxygen from said vessel on and off, a demand valve supplied with gas at the pressure inside of the vessel when the supply is turned on, a spring biased resilient diaphragm regulator operable to control the opening and closing of the demand valve to regulate the pressure in a regulator chamber to a desired pressure, an orifice through which the gas passes from the regulator chamber to an outlet valve which is opened by a demand for gas to supply the gas from the orifice to the interior of a face mask; the assembly being capable of supplying oxygen to the face mask for a period exceeding 15 minutes at a flow rate exceeding 6 liters per minute with very little variation of that flow rate with variations of pressure of the supply of oxygen.
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Michell Robert W.
Recla Henry J.
Safety Laboratories, Inc.
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