A method for determining the concentration of a constituent of blood employing a sensor in or near a catheter in a blood vessel for producing a signal related to the concentration of the constituent of blood is disclosed. The improvement comprises obtaining the signal while at least one of the following...http://www.google.es/patents/US5345932?utm_source=gb-gplus-sharePatente US5345932 - Method and system for monitoring of blood constituents in vivo
Method and system for monitoring of blood constituents in vivo
