Measurement of CO2 concentration in expired air from the lung per
breath is a useful index for determining ventilatory efficiency,
metabolic status and hypo and hyper ventilatory syndrome in
response to the effects of testing drugs in animals. Moreover,
the end-tidal CO2 is the most important parameter in evaluating
the depth of anesthesia when the effects of drugs on
physiological parameters are to be tested. Maintenance of
constant end-tidal CO2 is necessary in some experiments involving
surgery of anesthetized animals. The device which measure these
parameters is called MICRO-CAPNOMETER. This device is very unique
for end-tidal CO2 measurements in very small and large laboratory
animals. It measures CO2 & N2O content of inspired and expired
air while drawing as little as 5 cc/min. from the tidal flow.
Concurrent with measurements of concentration is a calculation of
respiration rate derived from the periodicity of the CO2
concentration waveform. The measurement is based on low
pressure-high velocity principle and analyzes sample gas with
infra-red gas sensor technology. The device can be interfaced
with IBM compatible computer via its RS-232 option to provide
automated data collection. Analog voltages are presented
proportional to all measured parameters for chart recording or
connection to a computer equipped with physiological monitoring
interface and software. If you need more information, please
provide your street address. I will be happy to mail you more
information.
