What device is commonly used to electronically measure uterine activity?

The tocodynamometer is the device specifically designed to measure uterine activity electronically. It consists of a pressure-sensitive transducer that is placed on the abdomen of the pregnant individual. This device detects changes in pressure and provides continuous data regarding the frequency, duration, and intensity of uterine contractions during labor.

In the context of labor monitoring, this information is crucial for assessing the progress of labor and can help healthcare providers make informed decisions regarding the care of both the fetus and the laboring individual.

Other devices mentioned, such as the ultrasound transducer, are used primarily for monitoring fetal heart rates rather than uterine activity. A cardiotocograph combines both fetal heart rate monitoring and uterine activity but does not itself measure uterine activity; it displays the results from a tocodynamometer. The electromyograph, while related to measuring electrical activity, is not utilized in the context of monitoring uterine contractions and is more associated with muscle activity in general.