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DESCRIPTION JPS5654834

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DESCRIPTION JPS5654834
Description 1, title of the invention
Method of manufacturing ultrasonic probe
3. Detailed Description of the Invention The water source 8A relates to a method of
manufacturing an ultrasonic probe. Recently, as a medical device, an ultrasonic tomography
apparatus capable of viewing in real time a tomographic image of six moving vessels and the
abdomen has been rapidly spread. This is because it is characterized in that it is non-invasive, has
a low risk, and has a large amount of information obtained for a low price. The ultrasound
diagnosis method includes pulse reflection method, doppler method, and transmission method,
but the pulse reflection method is put to practical use at present, and has become the
mainstream of extensive research. The principle of the pulse reflection method is that an
ultrasonic pulse of about 1 MHz to 10 Mf (about z is emitted from a vibrator (piezoelectric
element), and an echo is returned due to impedance mismatch from the interface of two tissues
(materials) having different acoustic impedances. The signal is received by the same transducer,
and the intensity is modulated on the oscilloscope with that intensity, and the position of the
echo is displayed. There are a mechanical scanning method and an electronic scanning method
as this diagnostic device, but there is a tendency to be unified to an electronic scanning method
with a large amount of information. In the case of the electronic scanning method, there are two
types, one in which only one electrode of the vibrator is divided or m in which the vibrator is
divided, but the present invention relates to the latter case. In the present invention, the backing
material is connected to the lead wire from the electrode on the back surface of the m-divided
vibrator bonded to the wedge, and the “EndPage: 1 before bonding the motion material to the
backing material as a method of leading the electrical signal Then, a comb-shaped metal foil to be
used as a lead wire is connected to the end of the electrode on one side of the vibrator, and this is
14-04-2019
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bonded to a backing material, and when the vibrator is divided into m, It is characterized in that
the electrical signal is guided by a metal foil of a comb shape, which eliminates the time and
labor of attaching individual electrode leads on the back of the vibrator after division, and offers
the advantage of reducing the number of steps. . In the past, the vibrator was bonded to the
backing material, and after m division, lead wires were attached to the individual electrodes on
the back of the vibrator. There was a problem that it was bad. One embodiment of the present
invention will be described with reference to FIGS. 1 and 2. FIG. A vibrator 1 has electrodes 2 and
3 on both sides. A comb-shaped metal foil 4 in which m feet 4a are arranged by the same pinch
used as a lead wire is connected to the end of the electrode 2 on one side of the vibrator 1 by a
conductive adhesive, soldering, or the like. The state up to here is shown in FIG. Next, since the
electrodes 2 face each other on the backing material 5 serving as ultrasonic absorption, the
vibrator 1 is bonded with an adhesive such as epoxy resin, and the space between the legs 4a
and 4a of the metal foil 4 is formed. The vibrator 1 is cut into m pieces by the scribing dicer so as
to be divided.
At this time of cutting, electrical signals from the individual electrodes 2 on the back surface of
the vibrator 1 can be guided by the legs 4a of the metal foil 4 in the form of a comb. Then, the
metal foil 6 is connected to the electrode 3 ′ ′ 2 with a conductive adhesive, for soldering, etc.,
and the electrode 3 is used as a common electrode. FIG. 2 is a perspective view showing the
completed state of the ultrasonic probe obtained by the method of the present invention.
According to the present invention, as a method of leading an electrical signal from the electrode
on the back surface of the m-divided transducer bonded to the backing material, a lead is
attached to the end of the electrode on one side of the transducer before bonding the transducer
to the banking material Connect a metal foil of comb shape to be used as a wire, bond it to the
banking material, divide the vibrator into m pieces so that the metal foil has a cut, and then
electrically connect the individual electrodes on the back of the vibrator. It is characterized in
that the signal is guided by a metal foil of a comb shape, and there is no need to connect a lead
wire to the individual electrodes on the back of the vibrator after division, and the working time
is extremely shortened, and it is extremely It has high practical value.
4. Brief description of the drawings Fig. 1 is a perspective view showing a state in which a combshaped metal foil and an oscillator are connected in the manufacturing method of the present
invention, and Fig. 2 is an ultrasonic probe obtained by the manufacturing method of the present
invention. It is a perspective view of the finished product state of. 1 ..... vibrator, 2,3 ... electrode,
4 ... comb-shaped metal foil, 4a · · · · · · foot, 6 ... backing material. Name of agent Attorney Nakao
and others 1 person Figure 1 Figure 2 EndPage: 2
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