Metering system for stimulating bronchial spasm

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

A - Human Necessities

61

M

326/13.6

A61M 16/00 (2006.01) A61M 15/00 (2006.01) A61M 11/06 (2006.01)

Patent

CA 1095995

Title of the Invention: METERING SYSTEM FOR STIMULATING bronchial SPASM Inventors: Richard R. Rosenthal Joseph French ABSTRACT OF THE DISCLOSURE 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.

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