CN107661853A - Annular self-focusing ultrasonic phased array transducers - Google Patents
Annular self-focusing ultrasonic phased array transducers Download PDFInfo
- Publication number
- CN107661853A CN107661853A CN201711113156.0A CN201711113156A CN107661853A CN 107661853 A CN107661853 A CN 107661853A CN 201711113156 A CN201711113156 A CN 201711113156A CN 107661853 A CN107661853 A CN 107661853A
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- shaped piezo
- piezo ceramic
- fan ring
- spherical shell
- ceramic chip
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- 239000000919 ceramic Substances 0.000 claims abstract description 55
- 235000012489 doughnuts Nutrition 0.000 claims abstract description 11
- 239000000523 sample Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- 210000000988 bone and bone Anatomy 0.000 abstract description 13
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 230000001225 therapeutic effect Effects 0.000 abstract description 4
- 230000000451 tissue damage Effects 0.000 abstract description 4
- 231100000827 tissue damage Toxicity 0.000 abstract description 4
- 235000012431 wafers Nutrition 0.000 description 10
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 208000019901 Anxiety disease Diseases 0.000 description 3
- 230000003340 mental effect Effects 0.000 description 3
- 230000035479 physiological effects, processes and functions Effects 0.000 description 3
- 206010061363 Skeletal injury Diseases 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009210 therapy by ultrasound Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
- B06B1/0622—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements on one surface
- B06B1/0625—Annular array
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N7/00—Ultrasound therapy
- A61N7/02—Localised ultrasound hyperthermia
- A61N7/022—Localised ultrasound hyperthermia intracavitary
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
- B06B2201/20—Application to multi-element transducer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
- B06B2201/50—Application to a particular transducer type
- B06B2201/55—Piezoelectric transducer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
- B06B2201/70—Specific application
- B06B2201/76—Medical, dental
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Transducers For Ultrasonic Waves (AREA)
Abstract
The invention discloses a kind of annular self-focusing ultrasonic phased array transducers, the transducer includes coronal spherical shell and some fan ring-shaped piezo ceramic chips.Coronal spherical shell is provided centrally with a circular hole, to install Ultrasonic-B probe, multi-disc fans ring-shaped piezo ceramic chip and is spliced into an annular shape after the concave spherical surface of coronal spherical shell is pasted, some fan ring-shaped piezo ceramic chips form one group of donut and the center line of donut overlaps with the center line of coronal spherical shell, and every fan ring-shaped piezo ceramic chip is connected with independent control end.It ensure that to the independent control per a piece of fan ring-shaped piezo ceramic chip, and then there is variable focal length, single-point and Multi-point focusing pattern.In therapeutic treatment, phased array transducers can effectively avoid the bone on sound passage, bone absorption ultrasonic energy be avoided so that tissue damage, so as to reduce the pain of patient.
Description
Technical field
The present invention relates to medical high intensity ultrasound treatment system regions, more particularly to a kind of annular self-focusing ultrasonic are phased
Array energy transducer.
Background technology
It is in recent years that super-strength, which focuses on ultrasonic (High Intensity Focused Ultrasound, abbreviation HIFU) technology,
Come a kind of noninvasive surgical technic to flourish, have been obtained for being widely applied in clinical medicine and promote.Due to
It is noninvasive over the course for the treatment of, harmless, safely, effectively and can ensure that the security and integrality of tissue, therefore, obtains the country
The attention and concern of outer many universities and research institution.At present, it is this kind of to change using being more widely single array element focused transducer
Energy utensil has the advantages that simple in construction, price economy.However, its focus version is single, focus scanning needs to rely on mechanical movement
To complete, when treating some tumours, ultrasonic energy can largely be absorbed by the bone on acoustic propagation path, it is risen rapidly
Temperature is so that cause to damage.Some hospitals take the method that the bone on rejecting sound passage is treated again, and this is caused to patient
Huge physiology and mental anguish.
The content of the invention
It is a primary object of the present invention to provide a kind of annular self-focusing ultrasonic phased array transducers, can solve existing
Because transducers focus form is single in technology so that during treatment, treated again using the rib on rejecting sound passage, or
When directly treating, the bone on acoustic propagation path can largely absorb ultrasonic energy, cause skeletal injury, be caused to patient huge
Big physiology and the technical problem of mental anguish.
To achieve the above object, the present invention provides a kind of annular self-focusing ultrasonic phased array transducers, the transducer
Including：
Coronal spherical shell and some fan ring-shaped piezo ceramic chips；
The coronal spherical shell is provided centrally with a circular hole, to install Ultrasonic-B probe；
Ring-shaped piezo ceramic chip is fanned described in multi-disc and is spliced into an annulus after the concave spherical surface of the coronal spherical shell is pasted
Shape, some fan ring-shaped piezo ceramic chips form one group of donut and the center line of donut and the coronal spherical shell
Center line overlap, every it is described fan ring-shaped piezo ceramic chip be connected with independent control end.
The invention discloses a kind of annular self-focusing ultrasonic phased array transducers, if the transducer include coronal spherical shell and
Dry fan ring-shaped piezo ceramic chip.Coronal spherical shell is provided centrally with a circular hole, to install Ultrasonic-B probe, some fan annulars
Piezoelectric ceramic wafer forms one group of donut and every fan ring-shaped piezo ceramic chip is connected with independent control end, ensure that
To the independent control per a piece of fan ring-shaped piezo ceramic chip, and then have variable focal length, single-point and Multi-point focusing pattern etc. excellent
Point.In therapeutic treatment, phased array transducers can effectively avoid the bone on sound passage, avoid bone absorption ultrasonic energy
So that tissue damage, so as to reduce the pain of patient.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those skilled in the art, on the premise of not paying creative work, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is arranged on by a kind of a kind of piezoelectric ceramic wafer for annular Self-focusing transducer that the embodiment of the present invention provides
Schematic diagram on the concave spherical surface of coronal spherical shell；
A kind of annular piezoelectric ceramic wafer schematic diagram that Fig. 2 is provided by the embodiment of the present invention.
Embodiment
To enable goal of the invention, feature, the advantage of the present invention more obvious and understandable, below in conjunction with the present invention
Accompanying drawing in embodiment, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described reality
It is only part of the embodiment of the present invention to apply example, and not all embodiments.Based on the embodiment in the present invention, people in the art
The every other embodiment that member is obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Due to existing in the prior art because transducers focus form is single so that during treatment, using on rejecting sound passage
Bone treated again, or when directly treating, the bone on acoustic propagation path can largely absorb ultrasonic energy, cause
Skeletal injury, the technical problem of huge physiology and mental anguish is caused to patient.
In order to solve the above-mentioned technical problem, the present invention proposes a kind of annular self-focusing ultrasonic phased array transducers.This is changed
Energy device includes coronal spherical shell and some fan ring-shaped piezo ceramic chips.Coronal spherical shell is provided centrally with a circular hole, to pacify
Fill Ultrasonic-B probe, some fan ring-shaped piezo ceramic chips form one group of donut and every fan ring-shaped piezo ceramic chip with
Independent control end connects, and ensure that to the independent control per a piece of fan ring-shaped piezo ceramic chip, and then have focal length variable, single
The advantages that point and Multi-point focusing pattern.In therapeutic treatment, phased array transducers can effectively avoid the bone on sound passage,
Bone absorption ultrasonic energy is avoided so that tissue damage, so as to reduce the pain of patient.
Referring to Fig. 1, a kind of a kind of piezoelectric ceramics of the annular Self-focusing transducer provided by the embodiment of the present invention is brilliant
Piece is arranged on the schematic diagram on the concave spherical surface of coronal spherical shell.The transducer includes：Coronal spherical shell 1 and some fan ring-shaped piezo ceramics
Chip 2.
Specifically, coronal spherical shell 1 is provided centrally with a circular hole 3, to install Ultrasonic-B probe.Multi-disc fans ring piezoelectric
Ceramic wafers 2 are spliced into an annular shape, some shapes of fan ring-shaped piezo ceramic chip 2 after the concave spherical surface of coronal spherical shell 1 is pasted
Overlapped into the center line of one group of donut and donut with the center line of coronal spherical shell 1, every fan ring-shaped piezo ceramic is brilliant
Piece 2 is connected with independent control end (not marked in figure).
It should be noted that coronal spherical shell 1 has concave spherical surface, but not necessarily there is convex spherical.The shape of coronal spherical shell 1 can
Think the global shell splitted, or one end of cylinder and the cylinder, which is dug, a concave spherical surface.Some fan ring piezoelectrics
One group of donut that ceramic wafers 2 are formed, comprising annulus number be indefinite, and the fan annular pressure included on each annulus
The number of electroceramics chip 2 is also indefinite, can flexibly be selected according to practical situations on annulus number and each annulus
Fan the number of ring-shaped piezo ceramic chip 2.
Preferably, fan the relative first surface of ring-shaped piezo ceramic chip 2 and second surface includes silver coating, and first
Surface and the concave spherical surface of coronal spherical shell 1 are pasted.
Preferably, the transducer also includes some first wires (not marked in figure), a piece of fan ring-shaped piezo ceramic chip 2
First surface be connected with one end of first wire, and the other end connection independent control end of the first wire.Need to illustrate
, because the concave spherical surface of the first surface and coronal spherical shell 1 of fanning ring-shaped piezo ceramic chip 2 is pasted, therefore, with fan annular pressure
One end of first wire of the first surface connection of electroceramics chip, the end is also to be contacted with the concave spherical surface of coronal spherical shell 1.
Preferably, the transducer also includes some second wires (not marked in figure), a piece of fan ring-shaped piezo ceramic chip 2
Second surface be connected with one end of second wire, and the other end of the second wire is common port.
Optionally, the first surface of a piece of fan ring-shaped piezo ceramic chip 2 is connected with one end of first wire, in fact
Mode is applied as welding；Likewise, the second surface of a piece of fan ring-shaped piezo ceramic chip 2 and one end of second wire connect
Connect, embodiments thereof is also welding.
It should be noted that fan ring-shaped piezo ceramic chip 2 is actually that can be made by annular piezoelectric ceramic wafer
's.A kind of referring to Fig. 2, annular piezoelectric ceramic wafer schematic diagram provided by the embodiment of the present invention.Three are shared in Fig. 2
Annular piezoelectric ceramic wafer 4, cutting is carried out to annular piezoelectric ceramic wafer 4, you can obtain fanning ring-shaped piezo ceramic chip
2.Fan ring-shaped piezo ceramic chip 2 is cut into, can ensure that the synchronism of chip is preferable.And fan ring-shaped piezo ceramic chip 2
Specification can be with identical, can also be different.Preferably, if the technical parameter of dry plate fan ring-shaped piezo ceramic chip 2 is consistent.
It is emphasized that be not in contact with each other between some fan ring-shaped piezo ceramic chips 2, and the material of coronal spherical shell 1 is
Insulative type material.The curvature and the curvature of the concave spherical surface of coronal spherical shell 1 of fan ring-shaped piezo ceramic chip 2 match.That is, fan annular
Piezoelectric ceramic wafer 2 can be realized to be bonded completely with the concave spherical surface of coronal spherical shell 1.
In embodiments of the present invention, a kind of annular self-focusing ultrasonic phased array transducers are proposed.Due to every in transducer
Piece fan ring-shaped piezo ceramic chip 2 is connected with independent control end, ensure that to per the only of a piece of fan ring-shaped piezo ceramic chip 2
Vertical control, and then there is variable focal length, single-point and Multi-point focusing pattern.In therapeutic treatment, phased array transducers
The bone on sound passage can be effectively avoided, bone absorption ultrasonic energy is avoided so that tissue damage, so as to reduce patient's
Pain.
In embodiment provided herein, embodiments described above is only schematical.In addition, this area
Technical staff should also know that embodiment described in this description belongs to preferred embodiment.
It is to a kind of description of annular self-focusing ultrasonic phased array transducers provided by the present invention, for ability above
The technical staff in domain, according to the thought of the embodiment of the present invention, there will be changes in specific embodiments and applications,
To sum up, this specification content should not be construed as limiting the invention.
Claims (7)
1. a kind of annular self-focusing ultrasonic phased array transducers, it is characterised in that the transducer includes：
Coronal spherical shell and some fan ring-shaped piezo ceramic chips；
The coronal spherical shell is provided centrally with a circular hole, to install Ultrasonic-B probe；
Ring-shaped piezo ceramic chip is fanned described in multi-disc and is spliced into an annular shape after the concave spherical surface of the coronal spherical shell is pasted, if
The dry fan ring-shaped piezo ceramic chip forms one group of donut and in the center line of donut and the coronal spherical shell
Heart line is overlapped, and the every fan ring-shaped piezo ceramic chip is connected with independent control end.
2. transducer according to claim 1, it is characterised in that the first relative table of the fan ring-shaped piezo ceramic chip
Face and second surface include silver coating, and the first surface is Nian Jie with the concave spherical surface of the coronal spherical shell.
3. transducer according to claim 2, it is characterised in that the transducer also includes some first wires；
The first surface of a piece of fan ring-shaped piezo ceramic chip is connected with one end of first wire, and described the
The other end connection independent control end of one wire.
4. transducer according to claim 2, it is characterised in that the transducer also includes some second wires；
The second surface of a piece of fan ring-shaped piezo ceramic chip is connected with one end of second wire, and described the
The other end of two wires is common port.
5. according to the transducer described in Claims 1-4 any one, it is characterised in that some fan ring-shaped piezo ceramics
It is not in contact with each other between chip.
6. according to the transducer described in Claims 1-4 any one, it is characterised in that the fan ring-shaped piezo ceramic chip
Curvature and the curvature of the concave spherical surface of the coronal spherical shell match.
7. according to the transducer described in Claims 1-4 any one, it is characterised in that the material of the coronal spherical shell is exhausted
Edge class material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711113156.0A CN107661853A (en) | 2017-11-13 | 2017-11-13 | Annular self-focusing ultrasonic phased array transducers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711113156.0A CN107661853A (en) | 2017-11-13 | 2017-11-13 | Annular self-focusing ultrasonic phased array transducers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107661853A true CN107661853A (en) | 2018-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711113156.0A Pending CN107661853A (en) | 2017-11-13 | 2017-11-13 | Annular self-focusing ultrasonic phased array transducers |
Country Status (1)
| Country | Link |
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| CN (1) | CN107661853A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108671425A (en) * | 2018-07-09 | 2018-10-19 | 广东易迈科技有限公司 | Ultrasonic electric stimulation therapeutic apparatus |
| CN110487912A (en) * | 2019-08-05 | 2019-11-22 | 清华大学 | A kind of self-focusing phased array ultrasonic detection probe for managing interior non-destructive testing |
| CN110478633A (en) * | 2019-09-02 | 2019-11-22 | 重庆医科大学 | The fixed frame and ultrasonic transducer system of focused transducer |
| CN111318441A (en) * | 2020-03-06 | 2020-06-23 | 深圳市普罗医学股份有限公司 | Ultrasonic transducer |
| CN111347221A (en) * | 2020-03-09 | 2020-06-30 | 中科绿谷（深圳）医疗科技有限公司 | Manufacturing process of ultrasonic transducer and ultrasonic transducer |
| CN112179992A (en) * | 2020-09-25 | 2021-01-05 | 广州多浦乐电子科技股份有限公司 | Central self-focusing circular array probe |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108671425A (en) * | 2018-07-09 | 2018-10-19 | 广东易迈科技有限公司 | Ultrasonic electric stimulation therapeutic apparatus |
| CN110487912A (en) * | 2019-08-05 | 2019-11-22 | 清华大学 | A kind of self-focusing phased array ultrasonic detection probe for managing interior non-destructive testing |
| CN110478633A (en) * | 2019-09-02 | 2019-11-22 | 重庆医科大学 | The fixed frame and ultrasonic transducer system of focused transducer |
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| CN112179992A (en) * | 2020-09-25 | 2021-01-05 | 广州多浦乐电子科技股份有限公司 | Central self-focusing circular array probe |
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Application publication date: 20180206 |
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