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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view and a cross-sectional view showing
a conventional ultrasonic probe. FIG. 2 is a plan view and a cross-sectional view showing a
conventional pain gauge. FIG. 3 is a cross-sectional view showing an ultrasonic probe for birth
according to an embodiment of the present invention. ■ ■ ■ ■ ■ ■ ■ ■ machine γ γ ■ ■
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DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ultrasound
probe for delivery integrated with a labor gauge. Electric tone transformers using piezoelectric
ceramics or the like have recently been applied in various fields. Among these applications,
ultrasonic transducers have been developed that use ultrasonic waves generated to the moving
object by using ultrasonic waves transmitted to and received from the ultrasonic waves. The
tenth one is used for detection of fetal heart sound or monitoring of fetal heart sound at
parturition, using a semi-circular transducer (Ri and (2) The heart sound is detected using the
Doppler effect generated by the movement of the heart, using one for transmitting waves and the
other for receiving waves. However, this conventional probe has a wide directivity and a narrow
detection range. Therefore, when used for monitoring heart sound of a fetus during delivery, it
was necessary to move the probe with the progress of delivery. In addition, at labor, although the
pincushion needle shown in FIG. 2 is used for monitoring the labor curve of the mother, using
them simultaneously is uniform and practically there is a gap. Here, (2 is a movable piece, (22) is
a case, (2s) is an elastic plate made of phosphor bronze, and (2 is a strain gauge. The present
invention solves the above-mentioned argument, and the detection range of the probe is wider
than that of the conventional product, and fetal heart sound monitoring and maternal labor curve
monitoring can be performed simultaneously at one foot position, and the shape is extremely
high. The purpose is a compact ultrasonic transducer for delivery. Hereinafter, the present
invention will be described according to 1 Nijli 2. (F) FIG. S is a sectional view showing a probe of
an embodiment of the present invention. That is, a small part (32) is provided to project from the
base (the third contact part (33)) at the central part of the base (S). The movable sC 52) is an
elastic plate (made of phosphor bronze or the like and held on a first base body by means of a
plate) so that it can be carbonized by the pressure from the vibration-example. The contact
portion (33) of the substrate is provided with a ring oscillator (s5) for receiving wave, and the
contact * (34) of the movable portion (s2) is a disk oscillator for transmission (57) is provided. If
the first contact 1i (34) and the disk-like vibrator (s7) are formed in a convex self-shape, the
detection axis number is wide, and so on. A strain gauge (S ·) is attached to the elastic plate (s4)
and is movable! It is threatened to detect the strain of the elastic plate (S rib due to the
displacement of i (52). As described above, according to the present invention, the movable
portion held by the elastic plate is formed to protrude at the central portion of the base, and the
elastic plate is provided with a strain gauge, and the protrusion of the front (1) symbol moving
portion is a circle It is an ultrasonic probe for calving, characterized in that a plate vibrator is
provided, and a ring vibrator is provided coaxially with the disc vibrator around the movable part
of the base. It is possible to obtain a doppler ultrasound probe having a wide directivity and a
detection range of 5 to 4 times that of the prior art from the parenting of the transmission disk
and the ring transducer for reception. At the same time, fetal heart sound monitoring and
maternal fault gIk-line monitoring can be performed simultaneously in the same unit, and
monitoring can be performed at a fixed position without having to move the measurement
position, by using the central portion as the movable portion of the labor pin. The shape is also
compact and practically convenient to use at the time of parturition.
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description, jps5245297
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