Gas-Med Gas Analyzer
Precise optical respiratory gas analysis for pharmaceutical and diagnostic applications in veterinary and human medicine
The air that a living being breathes out consists mainly out of nitrogen, oxygen, carbon dioxide and water vapour.
Further constituents with very low concentrations are e.g. volatile organic compounds (VOCs). The composition of the gas mixture allows conclusions to be drawn about the vital condition of the body and the metabolization of medical products. This is especially the case when, for example, isotope-labelled medication is administered and these isotopes can be subsequently selectively measured in the breath.
The GAS-MED gas analyzer is a laser spectrometer that can selectively and sensitively measure the gas absorption
of various molecules and their isotopes in the infrared spectral range (for example, 12CO2 and 13CO2). The non-IR
active oxygen is determined by an integrated opto-chemical sensor from the company TecSense. Based on an optical hollow waveguide, the miniaturized gas measurement cell enables a minimal sample volume of just one millilitre.
The measurement takes place with a constant flow rate without further gas treatment or change to the sample gas. Thus, the device can, for example, be integrated without problems into the exhaust gas routing of an artificial respiration system. Subsequent analyses of the sample gas are not affected by this technology. Through the simple replacement of the laser and the associated software configuration, the unit can be adapted to any IR-absorbing gas.