Common gases measured in Medical Applications
Common gas species.
Anaesthetics (most types)
Typical/Suitable Application areas:
Lung Function tests
Measuring behavior of cardio vascular efficiency and performance. Sports medicine, Neonatal and infant studies (low volume lung capacity)
Gas Dilution tests
Effect of N2 and He and “washout” in lungs
Measure how He, Freon, Acetylene and CO and O2 is absorbed into the blood through lungs
Plotting time resolved data over long periods during exercise programs “O2 uptake”
Study of breathing patterns in patients with degraded control over lung functions.
Fitness to fly
How a patient copes with O2 depletion (15% at 9,000 ft)
Measure sleeping patterns using breath analysis
Lung region ID
Using Helium to indentify where lung valves may be fitted for patients suffering from smoking related diseases.
Portable Medical Mass Spectrometer Design
The suitable physical design consists of the following points:
Air cooled, compact Instrument weighing less than 25kg
Quiet operation, less than 50db
Flexible, fast sample interface
Ability to interface to other peripheral devices such as heart monitors, blood pressure monitors, flow measurement devices, tread mill speed indicators etc. Often via analogue input and outputs.
Portable Medical Mass Spectrometer Schematic