Transcutaneous devices for the measurements of pO2 and pCO2. State-of-the-art, especially emphasizing a pCO2 sensor based on a solid-state glass pH sensor.
In treating critically ill neonates it is vital to ensure optimal delivery oxygen to the tissue and simultaneously make sure that carbon dioxide is removed from the tissue. The continuous non-invasive transcutaneous measurements of pO2 and pCO2 make it possible to detect sudden changes in pO2 and pCO2 immediately, so prompt corrective action can be implemented to ensure optimal neonatal patient care. A new combined solid state transcutaneous sensor for measurement of pO2 and pCO2 is described in the paper. The pO2 part of the sensor has been redesigned and its performance improved to ensure more reliable pO2 readings during in vivo measurements. The pCO2 part of the sensor has been completely redesigned. The application of a new solid state technology in the production of the pCO2 combined with the use of a new, reinforced, composite pH sensitive glass membrane, has resulted in an extremely robust and reliable pCO2 sensor.
Larsen
J
J
Radiometer Medical A/S, Copenhagen, Denmark.
Linnet
N
N
Vesterager
P
P
D001785:Blood Gas Monitoring, Transcutaneous / Q000295:instrumentation* / Q000379:methods; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007231:Infant, Newborn