Avoidance of poisoning during anesthesia

Details Avoidance of poisoning during anesthesia Avoidance of poisoning during anesthesia

2006-02-21

2006-02-21

Lauchman, Layla G. (Department: 2877)

Optics: measuring and testing

By dispersed light spectroscopy

With raman type light scattering

Reexamination Certificate

active

07002678

ABSTRACT:
For avoiding poisoning effects during anesthesia, the quantitative amount of an anesthetic agent degradation product, preferably carbon monoxide CO and/or trifluoromethane CHF3, in an anesthetic gas mixture is determined. When the determined quantitative amount of the anesthetic agent degradation product in the anesthetic gas mixture exceeds a given threshold, an alarm is provided. This is preferably accomplished by measuring a Raman spectrum of the gas mixture, and determining the quantitative amount of the anesthetic agent degradation product in the gas mixture by comparing the measured Raman spectrum with a reference spectrum of the anesthetic agent degradation product.

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patent: 6228150 (2001-05-01), Armstrong et al.
Kronen,“Anesthetic Management Of the Horse . . . ,” Jan. 2003, International Veterinary Information Service.

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