PROBLEM TO BE SOLVED: To avoid labor and time by integrating two sensors of Doppler and labor pain mounted on an abdominal wall of a pregnant woman to also collect a Doppler signal at a mounting position of a labor pain meter, in fetus monitoring.;SOLUTION: There is provided a configuration for obtaining a Doppler signal of a fetus heart using incidence at an oblique angle from part directly under the pit of the stomach, the part being an optimum position for a labor pain meter. For the purpose, a variable angle probe (Fig.1) of a semi-sphere liquid chamber dome type is used. Being magnetically attracted by a magnet piece (4) with a knob (3) from the outside, a transceiver assembly (2) freely moves along a ceiling on the inner side of a semi-sphere part of a dome-like liquid chamber (1) while changing the transceiver assembly's direction to set an azimuth angle of an ultrasonic beam (13) transmitted/received via a contact surface (5) in an arbitrary manner. A pressure sensor (10) is also provided inside the liquid chamber; static pressure received by the contact surface (5) is detected according to Pascal's principle by the pressure sensor to obtain an externally measured labor pain signal.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2018,JPO&INPIT
展开▼
