Sidestream infrared gas analyzer requiring small sample volumes

Details Sidestream infrared gas analyzer requiring small sample volumes Sidestream infrared gas analyzer requiring small sample volumes

1992-11-10

1994-02-01

Sykes, Angela D.

Surgery

Truss

Pad

128719, A61B 5097

Patent

active

052824730

ABSTRACT:
An infrared gas analyzer implementing an optically stabilized detector in a sidestream configuration. In order to reduce the pneumatic sampling volume, an "optical funnel" or collimator is used to resize the optical aperture of a multi-channel optically stabilized detector without compromising signal strength. The smaller pneumatic volume is desirable in order to minimize the time required for a gas wavefront from the sample cell to traverse the optical aperture, thereby minimizing pneumatic response time. The geometry of the sample cell of the invention is also streamlined so that sharp corners or transitions which might induce turbulent gas flow are eliminated. The sample cell of the invention thus promotes smooth, laminar flow of aspirated respiratory gases through the optical aperture so as to preserve the temporal relationship of gas concentration wavefronts within the gas stream and to thereby allow the analyzer to exhibit a faster pneumatic response.

REFERENCES:
patent: 3725658 (1973-04-01), Stanley et al.
patent: 4177381 (1979-12-01), McClatchie et al.
patent: 4297871 (1981-11-01), Wright et al.
patent: 4558708 (1985-12-01), Labuda et al.
patent: 4692621 (1987-09-01), Passaro et al.
patent: 4852583 (1989-08-01), Walker
patent: 5067492 (1992-11-01), Yelderman et al.
patent: 5081998 (1992-01-01), Yelderman et al.
patent: 5095913 (1992-03-01), Yelderman et al.

Affiliated with

Also associated with

Rating

Sidestream infrared gas analyzer requiring small sample volumes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sidestream infrared gas analyzer requiring small sample volumes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sidestream infrared gas analyzer requiring small sample volumes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-574334