Metering system for stimulating bronchial spasm

Details Metering system for stimulating bronchial spasm Metering system for stimulating bronchial spasm

1977-03-11

1978-08-15

Recla, Henry J.

Surgery

Truss

Pad

1281456, A61M 1600

Patent

active

041065034

ABSTRACT:
A system for administering a metered dose of nebulized antigen tests a patient's pulmonary response. The system includes a thermistor detector for sensing initiation of patient inhalation. A variable electronic timer meters the amount of nebulized antigen introduced to the patient. Safety switching means is provided for insuring against erroneous administration of more than a single dose at a time. Separate measuring equipment is used to measure pulmonary airflow resistance which will increase in response to bronchial spasm.

REFERENCES:
patent: 3301255 (1967-01-01), Thompson
patent: 3812854 (1974-05-01), Michaels et al.
patent: 3814093 (1974-06-01), Gregory
patent: 3962917 (1976-06-01), Terada
patent: 4022193 (1977-05-01), Franetzki et al.

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