Measurement device for intracardial acquisition of blood oxygen saturation

摘要: A measurement device for frequency control of a heart pacemaker based on the level blood oxygen saturation contains measuring probe which includes light transmitter and receiver. The receiver receives emitted by reflected blood. are connected in parallel to an evaluation circuit via two common lines, this charging with constant current or voltage. resistor is arranged series transistor circuit, base thereof being junction By means arrangement, sensitivity given deposits maintained at higher level. In alternative embodiment, can also be achieved using controlled therewith.