Inhalation chamber in ventilator circuit
First Claim
1. The combination comprising a ventilator breathing circuit including an inhalation conduit, including a pair of axially separable conduit means of substantially equal predetermined diameter normally in closed fluid communication with one another, an inline axially extensible medication inhalation chamber having a pair of end pieces respectively connected to said conduit means and further having axially extensible substantially cylindrical means of greater diameter than said predetermined diameter interconnecting said end pieces and when axially extended forming with said end pieces a substantially cylindrical medication inhalation chamber, and receptacle means opening into said chamber and adapted to receive a metered dose inhaler cannister for misting aerosol medication into said medication inhalation chamber.
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Accused Products
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.
295 Citations
15 Claims
- 1. The combination comprising a ventilator breathing circuit including an inhalation conduit, including a pair of axially separable conduit means of substantially equal predetermined diameter normally in closed fluid communication with one another, an inline axially extensible medication inhalation chamber having a pair of end pieces respectively connected to said conduit means and further having axially extensible substantially cylindrical means of greater diameter than said predetermined diameter interconnecting said end pieces and when axially extended forming with said end pieces a substantially cylindrical medication inhalation chamber, and receptacle means opening into said chamber and adapted to receive a metered dose inhaler cannister for misting aerosol medication into said medication inhalation chamber.
Specification