Method for determining the functional residual capacity of lungs

Details Method for determining the functional residual capacity of lungs Method for determining the functional residual capacity of lungs

1994-10-24

1996-07-30

Cohen, Lee S.

Surgery

Truss

Pad

128719, A61B 5091

Patent

active

055402330

ABSTRACT:
In a method and a ventilator device for measuring the functional residual capacity, FRC, of lungs, a trace gas is mixed with a breathing gas in a gas mixer and the mixture os fed into the lungs via an inspiratory tube. When a predetermined concentration of trace gas is achieved in the lungs, the supply of trace gas is stopped, and a washout phase starts. During the washout phase, the concentration of trace gas in expired gas and the flow of expired gas are measured. The measurement values are sent to an analyzer which calculates the volume of trace gas in the lungs. Functional residual capacity can then be determined from the calculated volume of trace gas. The trace gas is preferably SF.sub.6.

REFERENCES:
patent: 3527206 (1970-09-01), Jones
patent: 3659590 (1972-05-01), Jones et al.
patent: 3785370 (1974-01-01), Richards et al.
patent: 4418701 (1983-12-01), Luijpers
patent: 4941476 (1990-07-01), Fisher
"Measurement of Functional Residual Capacity by Sulfur Hexafluoride Washout," Jonmarker, University of Lund, Sweden, 1985.

Affiliated with

Also associated with

Rating

Method for determining the functional residual capacity of lungs does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for determining the functional residual capacity of lungs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for determining the functional residual capacity of lungs will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1652372