Fresh gas device with mixer for medical and respiration apparatu

Details Fresh gas device with mixer for medical and respiration apparatu Fresh gas device with mixer for medical and respiration apparatu

1980-10-20

1982-02-02

Recla, Henry J.

Surgery

Respiratory method or device

Means for mixing treating agent with respiratory gas

12820019, 12820524, 137110, A61M 1600

Patent

active

043134360

ABSTRACT:
An improved fresh gas device includes a gas mixer connected to a source of oxygen and to a source of at least one other gas for mixing oxygen to form a gas mixture to be supplied to a patient. A line bypasses the mixer and is provided with a switch for initiating pressure pulses in the bypass line and a pneumatically operated valve is provided downstream of the mixer and is controllable responsive to the pressure in the bypass line.

REFERENCES:
patent: 2041863 (1936-05-01), Rhodes
patent: 3351089 (1967-11-01), Garrahan
patent: 3807425 (1974-04-01), Boirum et al.
patent: 3896837 (1975-07-01), Rohling
patent: 3957044 (1976-05-01), Fletcher et al.
patent: 4195667 (1980-04-01), Moore et al.
patent: 4215409 (1980-07-01), Strowe

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