Method and device for determination of the functional residual c

Details Method and device for determination of the functional residual c Method and device for determination of the functional residual c

1997-04-23

1999-09-28

Weiss, John G.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

12820312, 12820424, 600529, 600532, A61M 1600

Patent

active

059571284

ABSTRACT:
The invention relates to a method and a device for determination of functional residual capacity (FRC) by introduction of helium or another inert gas mixture. According to the invention, a measurement apparatus measures the density of the gas mixture upon inspiration and upon expiration at the mouthpiece of a tube or at a mask during forced ventilation of a patient over a plurality of respiratory cycles. The FRC is determined from the difference in the gas concentrations.

REFERENCES:
patent: 3910261 (1975-10-01), Ragsdale et al.
patent: 4221224 (1980-09-01), Clark
patent: 4788974 (1988-12-01), Phuc
patent: 4941476 (1990-07-01), Fisher
patent: 4947860 (1990-08-01), Fisher
patent: 5069220 (1991-12-01), Casparie et al.
patent: 5197481 (1993-03-01), Fisher
patent: 5239994 (1993-08-01), Atkins
patent: 5429123 (1995-07-01), Shaffer et al.
patent: 5540233 (1996-07-01), Larsson et al.
patent: 5575283 (1996-11-01), Sjoestrand

Affiliated with

Also associated with

Rating

Method and device for determination of the functional residual c 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 and device for determination of the functional residual c, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for determination of the functional residual c will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-692503