Nebulizer valve assembly for use in a ventilation circuit

Details Nebulizer valve assembly for use in a ventilation circuit Nebulizer valve assembly for use in a ventilation circuit

1993-05-18

1995-03-14

Asher, Kimberly L.

Surgery

Liquid medicament atomizer or sprayer

12820312, 12820511, 12820524, A61M 1100

Patent

active

053968832

ABSTRACT:
A T-shaped valve for use in supporting a nebulizer cup in a ventilation circuit. The valve comprises an inner sheath and an outer sheath for supporting the inner sheath. Both the inner and outer sheaths have apertures which selectively align and misalign with one another. The inner sheath further includes an integral control knob which passes through an opening in the outer sheath. A displacement of the control knob shifts the inner sheath circumferentially relative to the outer sheath which, in turn, displaces the aperture in the inner sheath relative to the aperture in the outer sheath. When the aperture in the inner sheath is in communication with the aperture in the outer sheath, the circuit is open to permit fluid flow through the nebulizer cup and when the aperture in the inner sheath is not in communication with the aperture in the outer sheath, the circuit is closed to restrict fluid flow through the nebulizer cup and thus enable the removal of the nebulizer cup from the ventilation circuit. The valve is configured so as to prevent the aperture in the inner sheath from communicating with the opening in the outer sheath, to prevent axial displacement of the inner sleeve relative to the outer sleeve, and to provide a seal between the inner and outer sheaths.

REFERENCES:
patent: 4057062 (1977-11-01), Lavigne
patent: 4267832 (1981-05-01), Hakkinen
patent: 4281652 (1981-08-01), Miller
patent: 4446863 (1984-05-01), Rubin et al.
patent: 4637384 (1987-01-01), Schroeder
patent: 4852563 (1989-08-01), Gross
patent: 4951661 (1990-08-01), Sladek
patent: 5027809 (1991-07-01), Robinson
patent: 5062419 (1991-11-01), Rider

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