dispositivo para estimar uma tonalidade da musculatura uterina, sistema para monitorar um sujeito quanto à hemorragia pós-parto e método para estimar uma tonalidade da musculatura uterina

摘要

A device for monitoring a subject for postpartum hemorrhage is disclosed. It comprises an ultrasound transducer for applying ultrasound energy focused at a region of uterine musculature of the subject for creating an acoustic radiation force for generating a shear wave in the uterine musculature. A second ultrasound transducer radiates ultrasound energy into the subject and receives the echoed ultrasound energy. By analyzing a signal representative of the received echoed ultrasound energy the speed of propagation of the shear wave in the uterine musculature is determined. The value of the tone of the uterine musculature is estimated based on the speed of propagation of the shear wave and conveyed to a user. Further, a device for detecting and locating a hemorrhage and estimating its severity are also disclosed.