Pressurized ventilation system for patients

Details Pressurized ventilation system for patients Pressurized ventilation system for patients

1987-07-17

1989-02-21

Chambers, A. Michael

Surgery

Liquid medicament atomizer or sprayer

Gas stream aspirating medicament from reservoir

12820227, 239338, 239352, 141 27, A61M 1610, A61M 1620

Patent

active

048056090

ABSTRACT:
A novel ventilating system (10) for human patients including nebulizing means (15A) for nebulizing a liquid medication into a supply (28A, 29A) of humidified breathable gas under pressure. The nebulizing means (15A) comprises a nebulizing module having a cap portion (25) to which is attached a vial-like nebulizing chamber (54A). In order to maintain the hermetic integrity of the system (10) a two-position, flow control valve assembly (64) is operatively connected to and in selective flow communication with, a lower region of the vial-like, liquid-retention nebulizing chamber (54A). The valve assembly (64) is configured so that it can be manually actuated between a first position precluding access to chamber (54A) or a second position for drainage of liquid (59A) from within the nebulizer chamber (54A) or addition of liquid to such chamber while maintaining system sealing and pressure. A liquid handling means such as a syringe (68) is used to control withdrawal or addition of liquid.

REFERENCES:
patent: 3185179 (1965-06-01), Harautuneian
patent: 3232292 (1966-02-01), Schaefer
patent: 3990442 (1976-11-01), Patneau
patent: 4253501 (1981-03-01), Ogle
patent: 4301970 (1981-11-01), Craiglero
patent: 4366105 (1982-12-01), Nowachi

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