Flexible valve for administering constant flow rates of medicine

Details Flexible valve for administering constant flow rates of medicine Flexible valve for administering constant flow rates of medicine

1997-03-27

2000-06-06

Lewis, Aaron J.

Surgery

Liquid medicament atomizer or sprayer

12820022, 12820023, A61M 1100

Patent

active

060705736

ABSTRACT:
A nebulizer is improved by placing a flexible valve in the ambient air inlet tube. Inhalation suction and Venturi effect shut down the flexible valve in proportion to the strength of the inhalation. Thus, the same output flow rate is obtained even with variable strength inhalations. Medications can be properly administered by controlled inhalation flow rates.

REFERENCES:
patent: 2788784 (1957-03-01), Birch et al.
patent: 3187748 (1965-06-01), Mitchell et al.
patent: 4106503 (1978-08-01), Rosenthal et al.
patent: 4534343 (1985-08-01), Nowacki et al.
patent: 4796614 (1989-01-01), Nowacki et al.
patent: 4852561 (1989-08-01), Sperry
patent: 5655520 (1997-08-01), Howe et al.
Vernay Duckbill Check Valves Sales Literature (3 Pages).

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