вход по аккаунту



код для вставкиСкачать
Patent Translate
Powered by EPO and Google
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
financial decisions, should not be based on machine-translation output.
Description 1, title of the invention
Method of manufacturing ultrasonic probe
3. Detailed Description of the Invention The present invention seeks to provide a method of
manufacturing an ultrasonic probe that is easy to manufacture. Recently, an ultrasonic
tomography apparatus capable of viewing a tomogram of a moving heart or abdomen as a
medical device in real time has rapidly spread. This is because it has the features of being noninvasive, having a low risk, and having a large amount of information for a low price. The
ultrasonic 2 ? wave diagnostic method includes pulse reflection method, doppler method and
transmission method, but it is put to practical use at present, and the mainstream of research is
pulse reflection method. The principle of the pulse reflection method is that an ultrasonic pulse
of about 1 MHz to 10 MHz is emitted from a piezoelectric vibrator, and echoes are returned from
interface of two tissues (materials) having different acoustic impedances due to impedance
mismatch. The signal is received by the transducer, and the intensity is modulated with the
intensity of the oscilloscope to display the position of the echo. There are a mechanical scanning
method and an electronic scanning method in this diagnostic device, but in the future 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. Conventionally, a piezoelectric vibrator is bonded to a backing material, and it
is cut into "mX n" piezoelectric vibrators so that m blocks are arranged in one block (one
element) and n blocks are arranged by an apparatus having rotating teeth called dicing saws. And
they were arranged linearly on the banking material, but "mEndPage: 13"! In order to completely
cut off x n ? ? completely, it is necessary to electrically connect all the m piezoelectric vibrators
in the connection of the lead wires in the later block, which takes a great deal of time. According
to the present invention, since one end of the piezoelectric vibrator in the one block is cut leaving
a little end in the width direction of the piezoelectric vibrator and the respective blocks are
completely cut, the end is cut in the block. Therefore, all the electrodes are electrically connected
and only one lead wire is connected, which reduces the number of steps, and has a very high
practical value. FIG. 1 (a) illustrates an example of the present invention according to the prior
art. It will be described using FIGS. 2 (a), (b) and (c) in comparison with (b). Conventionally, in the
method of cutting the piezoelectric vibrator 3 having the electrodes 1.2 on both sides by n blocks
and connecting the lead wires 4 to the electrodes 1 and 2 on both sides, the electromechanical
coupling coefficient ke is low and experimental and theoretical If the ratio w / l is set to a certain
ratio, ke tends to be the highest, and m is further divided so that ke is the highest within one
However, if you use this method, ke will be high and performance will improve, but it will take a
lot of time a to connect all m lead wires in a block. That is, in FIG. 1, a piezoelectric vibrator 3
having electrodes 1 and 2 on both sides is bonded to a backing material 6-1, and cut into "mXn"
pieces (m-4 in this figure) of piezoelectric vibrators with a polishing saw. The electrodes 1 and 2
on both sides are connected by leads 4 in the block. 2 (a), (b) and (c) are views showing the
present invention, and in the block, the end is slightly left in the width direction of the
piezoelectric vibrator 30 and cut completely between the blocks. . For this reason, since the lead
wire connected to the block is cut leaving the end, it is connected through the electrode of this
end, so the connection of the lead wire 4 can be made very easy. As described above, according
to the present invention, it is possible to manufacture an ultrasonic probe with a reduced number
of man-hours. A plan view and a front view of the feeler, FIGS. 2 (a), (b), (c) are back views of the
ultrasonic probe showing one embodiment of the method of the present invention, 5 bases,. It is
a front view. 3 ииии Piezoelectric vibrator, 4 иииииии Lead wire, 6 иииииииииииии Backing material. Name of
agent Attorney Nakao and others 1 person Figure 1 Figure 2 r11 EndPage: ?
Без категории
Размер файла
9 Кб
description, jps5767399
Пожаловаться на содержимое документа