Inhalation chamber in ventilator circuit

Details Inhalation chamber in ventilator circuit Inhalation chamber in ventilator circuit

1989-04-25

1990-07-03

Burr, Edgar S.

Surgery

Respiratory method or device

Means for mixing treating agent with respiratory gas

12820023, 12820523, 12820418, 128912, A61M 1108, A61M 1608, A61M 1616

Patent

active

049382101

ABSTRACT:
A ventilator breathing circuit is provided with an inline axially extensible inhalation chamber. Telescoping conduits are disposed within the chamber and normally are in fluid communication. The chamber comprises a pleated outer shell so that it may be axially extended upon separation of the telescoping conduits. A receptacle is provided opening into the chamber for receiving a metered dose inhalation medication cannister. In addition, an air leakage path is provided from the chamber which is designed to be covered manually during use, but which will provide an audible signal if the chamber is left in extended position and unattended.

REFERENCES:
patent: 2631757 (1953-03-01), Alexander
patent: 2890697 (1959-06-01), Van Sickle
patent: 3910222 (1975-10-01), Metivier
patent: 4550726 (1985-11-01), McEwen
patent: 4805609 (1989-02-01), Roberts et al.
"Portable Equip. for Gen. Anaesthesia . . .", The Lancet, 12/9/1961, p. 1290.

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