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JP2001258884

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DESCRIPTION JP2001258884
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to
ultrasound probes, and more particularly to alignment of components.
[0002]
2. Description of the Related Art Conventionally, an ultrasonic probe having an acoustic lens and
a housing is known as disclosed in Japanese Patent Application Laid-Open No. 6-105844. FIG. 4
shows a conventional ultrasound probe, which is composed of parts involved in mechanical
dimensional accuracy. The ultrasonic probe includes a case 11, a shield film 12 made of
conductive paint applied to the back of the case 11, an ultrasonic transducer 13, and a backing
provided on the back of the ultrasonic transducer 13. A material 14, an acoustic matching layer
15 provided on the front surface of the ultrasonic transducer 13, and an acoustic lens 16
laminated on the front surface of the acoustic layer.
[0003]
However, in the above-described conventional acoustic lens and housing configuration, although
the positional accuracy is dependent on the mechanical dimensions of the components, there is a
problem. , Are not configured to adjust their position accuracy.
[0004]
03-05-2019
1
An object of the present invention is to solve the above-mentioned conventional problems, and it
is an object of the present invention to provide an ultrasonic probe which can be easily aligned
and which is excellent in accurate alignment in a short time.
[0005]
According to a first aspect of the present invention, there is provided an acoustic lens of an
elastic body integrated with an ultrasonic vibration element, and a housing for housing the
acoustic lens, the acoustic lens comprising: The relative position of the said housing is an
electronic scanning type ultrasonic probe which can be moved by an adjustment screw.
With this configuration, the relative positional relationship between the body surface contact
surface of the acoustic lens and the body surface contact surface of the housing that
accommodates the acoustic lens can be easily adjusted. The sample can be optimally contacted.
The invention according to claim 2 is the ultrasonic probe according to claim 1, wherein the
contact surface of the acoustic lens in contact with the housing has a projecting shape. With this
configuration, the relative position between the acoustic lens and the housing can be moved by
the adjustment screw, and an optimum positional relationship can be created by adjusting the
movement of the acoustic lens back and forth, and a smooth search without steps in the flush
state It has the effect that the contact surface of the outer shape of the feeler can be obtained.
The invention according to claim 3 of the present invention is the ultrasonic probe according to
claim 1, wherein the acoustic lens has a flange. According to this configuration, fine adjustment
of the position of the acoustic lens and the housing can be easily performed by the flange portion
appropriately adjusting the hardness of the elastic body.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be
described below with reference to FIGS. 1 to 3. FIG. FIG. 1 is a cross-sectional view of an
ultrasonic probe according to an embodiment of the present invention. In FIG. 1, the ultrasonic
probe 1 includes an acoustic lens 2 of an elastic body, an ultrasonic element 3, a backing 4, a
substrate 5, and a housing 6. The substrate 5 is provided with a set screw 9 and connected to the
housing 6.
03-05-2019
2
[0007]
The ultrasonic element 3 is adhesively fixed to the backing 4, and the backing 4 is mechanically
coupled to the substrate 5. An acoustic lens 2 is disposed on the surface of the ultrasonic element
3 by adhesion or the like. A housing 6 is provided as a housing of the ultrasonic probe 1 so as to
cover the whole, and is connected to the grip 8. Furthermore, the ultrasound probe has a cable 7
for transmitting and receiving signals to and from the ultrasound element 3.
[0008]
The acoustic lens 2 is integrated with a stepped collar 10 (see FIG. 2 or 3), the integrated
acoustic lens 2 being in contact with the housing 6 by means of its collar 10. Further, the
substrate 5 mechanically coupled to the ultrasonic element 3 is attached to the housing 6 with a
fixed gap. Therefore, the substrate 5 and the housing 6 respectively have, for example, two
penetrating screw holes in the substrate 5 and two screw holes in the housing 6 at
corresponding positions. The acoustic lens 2 is incorporated into the housing 6 with such a
positional relationship. At this time, the acoustic lens 2 is disposed more recessed with respect to
the end of the housing 6.
[0009]
Next, with regard to the ultrasonic probe 1 configured as described above, adjustment of the
positional relationship between the acoustic lens 2 and the housing 6 will be described with
reference to FIG. The integrated acoustic lens 2, the ultrasonic element 3, the backing 4 and the
substrate 5 are attached to the housing by inserting the set screw 9 into a screw hole penetrating
the substrate 5. In this state, when the set screw 9 is rotated, the substrate 5 moves back and
forth, so that the acoustic lens 2 substantially fixed to the substrate 5 also moves back and forth.
The positional relationship of the housing 6 can be adjusted. The collar of the acoustic lens 2
causes a return in excessive extrusion due to its elasticity. In this manner, adjustment can be
performed by the rotation of the set screw 9 to obtain the required positional relationship
including the surfaces of the housing 6 and the acoustic lens 2. As shown in FIG. 2 and FIG. 3, the
acoustic lens 2 and the housing 5 can be provided by arranging the acoustic lens 2 having the
collar 10 having a suitable hardness of the elastic body and the projections 101 provided on the
collar. Fine adjustment of the position can be easily performed.
03-05-2019
3
[0010]
According to the above configuration, in the present invention, the relative position between the
acoustic lens and the housing can be moved by the rotation of the set screw, and the optimum
positional relationship can be created by adjusting the movement of the acoustic lens back and
forth. It has the effect that a smooth contact surface without a step in the flush state can be
obtained. Furthermore, the present invention is easy to adjust, so the operation is not
complicated, and also has the effect of being able to be provided inexpensively in terms of cost.
03-05-2019
4
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