Dry drug particle delivery system and method for ventilator circ

Details Dry drug particle delivery system and method for ventilator circ Dry drug particle delivery system and method for ventilator circ

1997-12-11

2000-01-18

Weiss, John G.

Surgery

Respiratory method or device

Means for mixing treating agent with respiratory gas

12820315, A61M 1500

Patent

active

060149728

ABSTRACT:
A system for introducing a dose from a metered dose inhaler canister into the inspiratory stream (1B) of a ventilator system including an inspiratory tube (32), a Y connector (3), and an endotracheal tube (7) intubated in a patient, including a valved T connector (30) having a valved port (30A) and first (30B) and second (30C) ports coupled to conduct the inspiratory stream (1B) through the valved T connector, an MDI canister (14), and a nozzle adapter structure (31) having a first port (31A) for insertion into the valved port (31A) to open a valve thereof and a nozzle (31B) receiving a stem (14A) of the MDI canister (14) and ejecting a plume (17) of MDI medication particles upon activation of the MDI canister. A dry gas inlet (31D) receives dry gas which flows through the nozzle adapter structure (31) into the valved port (30A) and into the inspiratory stream (1B), and carries the plume from the nozzle adapter structure (31) through the valved port (30A) into the inspiratory stream (1B).

REFERENCES:
patent: 4951661 (1990-08-01), Sladek
patent: 5474058 (1995-12-01), Lix
patent: 5546930 (1996-08-01), Wikefeldt
patent: 5720282 (1998-02-01), Wright
patent: 5769073 (1998-06-01), Eason et al.

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