CN210204775U - 25MHz piezoelectric vibrator with acoustic focal length of 4mm for clinical examination high-frequency ultrasonic probe - Google Patents
25MHz piezoelectric vibrator with acoustic focal length of 4mm for clinical examination high-frequency ultrasonic probe Download PDFInfo
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- CN210204775U CN210204775U CN201920176367.7U CN201920176367U CN210204775U CN 210204775 U CN210204775 U CN 210204775U CN 201920176367 U CN201920176367 U CN 201920176367U CN 210204775 U CN210204775 U CN 210204775U
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Abstract
The utility model discloses a clinical examination high frequency ultrasonic probe is with 25MHz piezoelectric vibrator of sound focus 4mm, the structure includes: electrode lead, backing block, piezoelectric wafer, acoustic lens, the electrode lead have two, two electrode lead welds the upper surface at piezoelectric wafer, backing block and piezoelectric wafer bond together, the backing block on process 2 micropores, two electrode leads pass the backing block through the aperture, the lower surface of piezoelectric wafer paste an acoustic lens, the sound focus of acoustic lens be 4mm, piezoelectric wafer be PN piezoceramics, PN piezoceramics has simple thickness vibration mode, and the big characteristics of thickness electromechanical coupling coefficient.
Description
The technical field is as follows:
the utility model relates to a clinical examination high frequency ultrasonic probe for superficial organ's 25MHz piezoelectric vibrator of sound focus 4mm belongs to vibration sensor technical field.
Background art:
in recent years, as the high-frequency ultrasonic imaging technology is mature, the high-frequency ultrasonic imaging technology is gradually used in a wide range of clinical applications. In dermatology, can be used for diagnosing skin tumor, inflammatory infection and connective tissue disease, drug-induced skin reaction, physical skin disease, pigmentation disorder skin disease, etc., and can reach quantitative level for skin disease diagnosis; the application in ophthalmology comprises vitreous body lesion, iris lesion, lens dislocation, intraocular and orbital tumors, corneal lesion, intraocular foreign bodies and the like; in addition, the method is also applied to the fields of early diagnosis of thyroid diseases and breast cancers, cerebral artery and carotid artery blood flow imaging and the like; during high-frequency ultrasonic imaging, with the increase of the central frequency of the ultrasonic transducer, the focus detail imaging is more accurate, and high-frequency ultrasonic with the frequency higher than 20MHz can distinguish tissues with the size of 200-300 mu m or even smaller, so the ultrasonic imaging method is particularly suitable for displaying fine structures of superficial organs. Therefore, the 25MHz ultrahigh-frequency piezoelectric vibrator is prepared by leading out the electrode wire on the same side surface of the piezoelectric wafer and arranging the acoustic lens on the front end surface of the piezoelectric wafer, and is used for the high-frequency ultrasonic probe for clinical examination of superficial organs so as to improve the definition of ultrasonic imaging for the clinical examination of the superficial organs.
SUMMERY OF THE UTILITY MODEL
To the above problem, the to-be-solved technical problem of the utility model is to provide a shallow table organ's clinical examination high frequency ultrasonic probe is with 25MHz piezoelectric vibrator of sound focus 4mm, two electrode lead wires are drawn forth from the same face of piezoelectric wafer, and piezoelectric vibrator preparation process flow is simple, and the cost of manufacture is low, adopts PN piezoceramics wafer, and the vibration mode is simple.
The utility model discloses a clinical examination high frequency ultrasonic probe of superficial organ is with 25MHz piezoelectric vibrator of acoustic focus 4mm, its structure includes: the electrode lead wire, backing block, piezoelectric wafer, acoustic lens, the electrode lead wire have two, two electrode lead wire welding are at piezoelectric wafer's upper surface, backing block and piezoelectric wafer bond together, backing block on process 2 aperture, two electrode lead wires pass backing block through the aperture, piezoelectric wafer's lower surface paste an acoustic lens.
Further, the acoustic focal length of the acoustic lens is 4 mm.
Furthermore, the piezoelectric wafer is PN piezoelectric ceramics, and the PN piezoelectric ceramics have the characteristics of simple thickness vibration mode and large thickness electromechanical coupling coefficient.
The utility model has the advantages that: the utility model discloses two electrode lead wires are drawn forth from same face of piezoelectric wafer, and piezoelectric vibrator makes simple process flow, and the cost of manufacture is low, adopts PN piezoceramics wafer, and the vibration mode is simple.
Drawings
For ease of illustration, the invention is described in detail by the following detailed description and accompanying drawings.
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1 two electrode leads; 2 backing block; 3 piezoelectric ceramic wafer; 4 acoustic lenses.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described below with reference to specific embodiments shown in the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in figure 1, the 25MHz piezoelectric vibrator with 4mm acoustic focal length for the high frequency ultrasonic probe for the clinical examination of superficial organs has the structure that: the piezoelectric lens comprises electrode leads 1, a backing block 2, a piezoelectric wafer 3 and an acoustic lens 4, wherein the number of the electrode leads 1 is two, the two electrode leads 1 are welded on the upper surface of the piezoelectric wafer 3, the backing block 2 is adhered to the piezoelectric wafer 3, 2 small holes are processed in the backing block 2, the two electrode leads 1 penetrate through the backing block 2 through the small holes, and the acoustic lens 4 is adhered to the lower surface of the piezoelectric wafer 3.
Specifically, the acoustic focal length of the acoustic lens 4 is 4mm, the piezoelectric wafer 3 is PN piezoelectric ceramic, and the PN piezoelectric ceramic has a simple thickness vibration mode and a large thickness electromechanical coupling coefficient.
The basic principles and main features of the present invention, the advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. The 25MHz piezoelectric vibrator with the acoustic focal length of 4mm for the high-frequency ultrasonic probe for clinical examination is characterized by comprising the following components in parts by weight: the electrode lead wire, backing block, piezoelectric wafer, acoustic lens, the electrode lead wire have two, two electrode lead wire welding are at piezoelectric wafer's upper surface, backing block and piezoelectric wafer bond together, backing block on process 2 aperture, two electrode lead wires pass backing block through the aperture, piezoelectric wafer's lower surface paste an acoustic lens.
2. The 25MHz piezoelectric vibrator having an acoustic focal length of 4mm for a high frequency ultrasonic probe for clinical examination according to claim 1, wherein: the acoustic focal length of the acoustic lens is 4 mm.
3. The 25MHz piezoelectric vibrator having an acoustic focal length of 4mm for a high frequency ultrasonic probe for clinical examination according to claim 1, wherein: the piezoelectric wafer is PN piezoelectric ceramics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920176367.7U CN210204775U (en) | 2019-02-01 | 2019-02-01 | 25MHz piezoelectric vibrator with acoustic focal length of 4mm for clinical examination high-frequency ultrasonic probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920176367.7U CN210204775U (en) | 2019-02-01 | 2019-02-01 | 25MHz piezoelectric vibrator with acoustic focal length of 4mm for clinical examination high-frequency ultrasonic probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210204775U true CN210204775U (en) | 2020-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201920176367.7U Active CN210204775U (en) | 2019-02-01 | 2019-02-01 | 25MHz piezoelectric vibrator with acoustic focal length of 4mm for clinical examination high-frequency ultrasonic probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210204775U (en) |
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2019
- 2019-02-01 CN CN201920176367.7U patent/CN210204775U/en active Active
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