Measuring and displaying the propagation velocity of uterine action potentials to determine the onset of labor Patent uri icon


  • A method and system to examine and measure the propagation velocity of electrical activity in pregnant patients, labor and non-labor patients at term and preterm, and non-pregnant patients, thereby providing valuable information regarding the state of a patient's uterus. The method can include obtaining uterine EMG signals from a series electrodes, processing the raw uterine EMG signal in a signal processing module and assessing the temporal interval between adjacent electrodes. The propagation velocity can then be estimated by averaging the time required for the uterine EMG signal to traverse a distance between adjacent electrodes.

author list (cited authors)

  • Garfield, R., Maner, W. L., Fink, R. J., McCrary, J. N., & Burns, M.

complete list of authors

  • Garfield, R||Maner, WL||Fink, RJ||McCrary, JN||Burns, M

publication date

  • December 2012