CN107802969A - A kind of sphere self-focusing ultrasonic phased array transducers - Google Patents
A kind of sphere self-focusing ultrasonic phased array transducers Download PDFInfo
- Publication number
- CN107802969A CN107802969A CN201711113054.9A CN201711113054A CN107802969A CN 107802969 A CN107802969 A CN 107802969A CN 201711113054 A CN201711113054 A CN 201711113054A CN 107802969 A CN107802969 A CN 107802969A
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- China
- Prior art keywords
- area block
- wire
- spherical shell
- piezoelectric ceramic
- ceramic wafer
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Classifications
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- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N7/00—Ultrasound therapy
- A61N2007/0004—Applications of ultrasound therapy
Abstract
The invention discloses a kind of sphere self-focusing ultrasonic phased array transducers, the transducer includes spherical shell piezoelectric ceramic wafer, the first wire and the second wire, the convex surface of spherical shell piezoelectric ceramic wafer includes some first area blocks, and the surface of first area block includes silver coating, the one end of several first area blocks respectively with some first wires connects one to one, the other end of first wire is as independent control end, the concave surface of spherical shell piezoelectric ceramic wafer is connected with one end of the second wire, and the other end of the second wire is as common port.This mode of connection ensure that the independent control to each first area block on spherical shell piezoelectric ceramic wafer, and then transducer is had the advantages that 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 the medical high intensity ultrasound treatment system in field, more particularly to a kind of sphere self-focusing ultrasonic are phased
Array energy transducer.
Background technology
High intensity focused ultrasound technology is a kind of noninvasive surgical technic booming in recent years, in clinical medicine
Have been obtained for being widely applied and promote.Due to its over the course for the treatment of it is noninvasive, harmless, safely, effectively and can ensure that group
The security and integrality knitted, therefore, obtain the attention and concern of domestic and international many universities and research institution.
Now widely used is single array element focused transducer, and this kind of transducer has simple in construction, price economy etc. excellent
Point, but its focus version is single, focus scanning needs to complete by mechanical movement, therefore treatment time is long.And
When treating liver neoplasm, the liver of people is largely covered by rib, and the size of general therapeutic transducer is again bigger, and Dan Zhen
First transducer only directly irradiates this mode of operation, so the rib Passive intake that will result in treatment on sound passage is big
Ultrasonic energy to be measured, so that human body of burning, therefore the method for rejecting rib re-treatment can only be taken, this wound to human body is very big,
Physiology and psychological great pain are caused to patient.
The content of the invention
It is a primary object of the present invention to provide a kind of sphere self-focusing ultrasonic phased array transducers, can solve existing
Because transducers focus form is single in technology, the rib on sound passage is caused to absorb a large amount of ultrasonic energies, so that human body of burning, or
Person is needed to reject rib in treatment, and the technical problem of physiology and psychological great pain is caused to patient.
To achieve the above object, present invention aspect provides a kind of sphere self-focusing ultrasonic phased array transducers, its feature
It is, the transducer includes：
Spherical shell piezoelectric ceramic wafer, the first wire and the second wire；
The convex surface of the spherical shell piezoelectric ceramic wafer includes several first area blocks, and the surface of the first area block
Include silver coating；
The one end of several described first area blocks respectively with some first wires connects one to one, and some institutes
The other end of the first wire is stated as independent control end；
The concave surface of the spherical shell piezoelectric ceramic wafer is connected with one end of second wire, and second wire is another
One end is as common port.
The invention discloses a kind of sphere self-focusing ultrasonic phased array transducers, the spherical shell piezoelectric ceramics of the transducer is brilliant
The convex surface of piece includes some first area blocks, and several first area blocks correspond with one end of some first wires respectively to be connected
Connecing, the other end of the first wire is connected as independent control end, the concave surface of spherical shell piezoelectric ceramic wafer with one end of the second wire,
The other end of second wire is as common port.This mode of connection ensure that to each firstth area on spherical shell piezoelectric ceramic wafer
The independent control of domain block, and then make transducer that there is variable focal length, single-point and Multi-point focusing pattern.In therapeutic treatment
When, phased array transducers can effectively avoid the bone on sound passage, avoid bone absorption ultrasonic energy so that tissue damage, from
And 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 a kind of schematic diagram of sphere self-focusing ultrasonic phased array transducers provided in an embodiment of the present invention；
Fig. 2 is that the section of another sphere self-focusing ultrasonic phased array transducers provided in an embodiment of the present invention is illustrated
Figure；
Fig. 3 is that the convex surface of another sphere self-focusing ultrasonic phased array transducers provided in an embodiment of the present invention is illustrated
Figure.
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.
The rib on sound passage because transducers focus form is single, is caused to absorb a large amount of ultrasounds due to existing in the prior art
Energy, so that human body of burning, or need in treatment to reject rib, physiology and psychological great pain are caused to patient
Technical problem.
In order to solve the above-mentioned technical problem, the present invention proposes a kind of sphere self-focusing ultrasonic phased array transducers.This is changed
Can the convex surface of spherical shell piezoelectric ceramic wafer of device include some first area blocks, several first area blocks are respectively with some first
One end of wire connects one to one, and the other end of the first wire is as independent control end, the concave surface of spherical shell piezoelectric ceramic wafer
It is connected with one end of the second wire, the other end of the second wire is as common port.This mode of connection ensure that to spherical shell piezoelectricity
The independent control of each first area block on ceramic wafers, and then make transducer that there is variable focal length, single-point and Multi-point focusing
The advantages that pattern.In therapeutic treatment, phased array transducers can effectively avoid the bone on sound passage, avoid bone absorption from surpassing
Acoustic energy is so that tissue damage, so as to reduce the pain of patient.
Referring to Fig. 1, it is a kind of signal of sphere self-focusing ultrasonic phased array transducers provided in an embodiment of the present invention
Figure.The transducer includes spherical shell piezoelectric ceramic wafer 1, the first wire 2 and the second wire (not marked in figure).Specifically, spherical shell
The convex surface of piezoelectric ceramic wafer 1 includes several first area blocks 3, and the surface of first area block 3 includes silver coating, several
The one end of first area block 3 respectively with some first wires 2 connects one to one, and the other end conduct of some first wires 2
Independent control end 4.The concave surface of spherical shell piezoelectric ceramic wafer 1 is connected with one end of the second wire, and the other end of the second wire is made
For common port.
It should be noted that illustrated by taking Fig. 1 as an example, on the convex surface of spherical shell piezoelectric ceramic wafer 1 several first
Region unit 3, it may be possible to raised, it is also possible to non-raised.If first area block 3 is raised, show the first area
Block 3 is made by the way of machine cuts, specifically：Cut, make on the convex surface of initial spherical shell piezoelectric ceramic wafer 1
The pattern of several first area blocks 3 is showed on the convex surface of spherical shell piezoelectric ceramic wafer 1, will be residual between first area block 3
Stay part to remove, and electroplate is carried out to first area block 3, the surface of first area block 3 is included silver coating, to obtain this
The spherical shell piezoelectric ceramic wafer 1 used in inventive embodiments.Significantly, since during machine cuts, not completely by ball
Shell piezoelectric ceramic wafer 1 is cut open so that spherical shell piezoelectric ceramic wafer 1 is an entirety in itself, but on convex surface, is presented
Go out the first area block 3 of projection.If first area block 3 is non-raised, it is to use multi-point partial to show the first area block 3
What silver-plated mode made, specifically：On the convex surface of spherical shell piezoelectric ceramic wafer 1, progress multi-point partial is silver-plated, each plating
Silver point is as a first area block 3, and the shape in silver-plated region is the shape of first area block 3, silver-plated region
Size is the size of first area block 3.
Wherein, the concave surface of spherical shell piezoelectric ceramic wafer 1 includes silver coating, is connected with one end of second wire, second
The other end of wire makees common port, and the concave surface of spherical shell piezoelectric ceramic wafer 1 is overall silver-plated, whole concave surface is covered by silver coating
Lid.
It is worth noting that, it is not in contact with each other between first area block 3.The shape of first area block 3 can be with identical, for circle
Shape or regular polygon region unit；The shape of some first area blocks 3 can also be different, including at least one circular or rule
Polygonal region block.Wherein, regular polygon region unit includes：Delta-shaped region block, quadrilateral area block, regular pentagon region
Block and regular hexagon region unit etc..The shape of some first area blocks 3 in Fig. 1 differs, including regular pentagon region
Block and regular hexagon region unit.Preferably, the technical parameter of each first area block 3 is basically identical.
Preferably, the center position of spherical shell piezoelectric ceramic wafer 1 sets a circular hole, in order to install Ultrasonic-B probe.
Wherein, after switching on power, control system starts to control some first areas on the convex surface of spherical shell piezoelectric ceramic wafer 1
Block 3 vibrates the ultrasonic beam sent, and the amplitude and phase of ultrasonic wave are sent by adjusting each first area block 3, makes ultrasound
Ripple is formed in ad-hoc location and focused on, and quickly kills lesion tissue, while avoids rib of burning, and the focal spot tool of focal position
There is the advantages that size is adjustable, and secondary lobe is smaller.
The invention discloses a kind of sphere self-focusing ultrasonic phased array transducers, the spherical shell piezoelectric ceramics of the transducer is brilliant
The convex surface of piece 1 includes some first area blocks 3, several first area blocks 3 a pair of one end 1 with some first wires 2 respectively
It should connect, the other end of the first wire 2 is as independent control end 4, the concave surface of spherical shell piezoelectric ceramic wafer 1 and the one of the second wire
End connection, the other end of the second wire is as common port.This mode of connection ensure that to each on spherical shell piezoelectric ceramic wafer 1
The independent control of individual first area block 3, and then make transducer that there is variable focal length, single-point and Multi-point focusing pattern.
During therapeutic treatment, phased array transducers can effectively avoid the bone on sound passage, avoid bone absorption ultrasonic energy so that group
Damage is knitted, so as to reduce the pain of patient.
About the sphere ultrasonic phased array transducer described by Fig. 1 embodiment, the spherical shell piezoelectric ceramics of the transducer
The convex surface of chip 1 includes first area block 3, and first area block 3 can be raised or non-raised, and spherical shell pressure
The concave surface of electroceramics chip 1 is a whole region block；And the sphere ultrasound phase-control described by the following embodiment about Fig. 2 and Fig. 3
Array energy transducer, the first area block 3 on the convex surface of the spherical shell piezoelectric ceramic wafer 1 of the transducer be it is raised, in addition,
On the concave surface of spherical shell piezoelectric ceramic wafer 1, also comprising raised some second area blocks.
Fig. 2 and Fig. 3 are referred to, Fig. 2 and Fig. 3 forms another sphere self-focusing ultrasonic phased array transducers.Fig. 2 is this
The diagrammatic cross-section for another sphere self-focusing ultrasonic phased array transducers that inventive embodiments provide, Fig. 3 are real for the present invention
The convex surface schematic diagram of another sphere self-focusing ultrasonic phased array transducers of example offer is provided.The sphere ultrasonic phased array is changed
Energy device includes：Spherical shell piezoelectric ceramic wafer 1, the first wire 2 and the second wire (not marked in figure).Wherein, spherical shell piezoelectric ceramics
The convex surface 5 of chip 1 includes several first area blocks 3 (not marked in Fig. 2), and the surface of several first area blocks 3 includes
Silver coating, one end of several first area blocks 3 and some first wires 2 connect one to one, some first wires 2 it is another
End is used as independent control end 4.On the concave surface 6 of spherical shell piezoelectric ceramic wafer 1, include several second area blocks 7.Secondth area
The surface of domain block 7 includes silver coating, and several second area blocks 7 correspond with one end of several the second wires connect respectively
Connect, and the other end of several the second wires is as common port.One end one of several second area blocks 7 and some second wires
One corresponding connection, several first area blocks 3 (Fig. 2 is not marked) that its connected mode is referred in Fig. 2 are led with some first
The connected mode that one end of line 2 connects one to one.And first area block 3 is symmetrically distributed in spherical shell piezoelectricity with second area block 7
On the convex surface 5 and concave surface 6 of ceramic wafers.
It should be noted that in this kind of sphere ultrasonic phased array transducer, first area block 3 and second area block 7
It is raised, and first area block 3 and a second area block 7 symmetrical with it, forms one group of region unit.
It should be noted that first area block 3 and second area block 7 are raised.Show the first area block 3 with being somebody's turn to do
Second area block 7 is made by the way of machine cuts on the convex surface 5 of initial spherical shell piezoelectric ceramic wafer 1 and concave surface 6
Form, its production method can refer to the explanation of the embodiment corresponding to Fig. 1.
It should be noted that being not in contact with each other between first area block 3, it is not in contact with each other between second area block 7.One group of region
The first area block 3 and the form and dimension of second area block 7 that block includes keep identical as far as possible.But the shape of every group of region unit can
With identical, for circular or regular polygon region unit, sphere self-focusing ultrasonic phased array transducing as shown in Figures 2 and 3
Device, every group of region unit are border circular areas blocks；Some groups of region units can also be different, more including at least a kind of circular or rule
Side shape region unit.Preferably, the technical parameter of every group of region unit is consistent.
Preferably, the center position of spherical shell piezoelectric ceramic wafer 1 sets a circular hole, in order to install Ultrasonic-B probe.
The present invention provides a kind of sphere self-focusing ultrasonic phased array transducers, and the convex surface 5 of the transducer includes some the
One region unit 3, the surface of some first area blocks 3 include silver coating and correspond company with one end of some first wires 2
Connect, the other end of some first wires 2 is as independent control end 4；The concave surface 6 of the transducer includes some second area blocks 7,
One end of some second area blocks 7 and some second wires connects one to one.One first area block 3 with it with symmetrically dividing
One second area block 7 of cloth forms one group of region unit.This mode of connection ensure that to each on spherical shell piezoelectric ceramic wafer
The independent control of group region unit, and then make transducer that there is variable focal length, single-point and Multi-point focusing pattern.Controlled in medical science
During 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.
In several embodiments provided herein, it should be understood that disclosed device or method, it can be passed through
Its mode is realized.For example, the preparation method of raised first area block 3 described above, is not limited to use mechanical cutting
Mode, can be by way of a kind of technological means reaches and makes first area block 3 raised, described by the embodiment of the present invention
In the range of.In addition, those skilled in the art should also know, embodiment described in this description belongs to be preferable to carry out
Example, and the description to each embodiment all emphasizes particularly on different fields, and does not have the part being described in detail in some embodiment, may refer to other implementations
The associated description of example.
It is to a kind of description of sphere 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 (8)
1. a kind of sphere self-focusing ultrasonic phased array transducers, it is characterised in that the transducer includes：
Spherical shell piezoelectric ceramic wafer, the first wire and the second wire；
The convex surface of the spherical shell piezoelectric ceramic wafer includes several first area blocks, and the surface of the first area block includes
Silver coating；
The one end of several described first area blocks respectively with some first wires connects one to one, and some described
The other end of one wire is as independent control end；
The concave surface of the spherical shell piezoelectric ceramic wafer is connected with one end of second wire, and the other end of second wire
As common port.
2. transducer according to claim 1, it is characterised in that the concave surface of the spherical shell piezoelectric ceramic wafer includes silver-plated
Layer, and be connected with one end of second wire, the other end of second wire is as common port.
3. transducer according to claim 1, it is characterised in that the concave surface of the spherical shell piezoelectric ceramic wafer includes some
Individual second area block, the first area block are symmetrically distributed in the convex of the spherical shell piezoelectric ceramic wafer with the second area block
On face and concave surface；
The surface of the second area block includes silver coating, several described second area blocks respectively with some second wires
One end connect one to one, and the other end of some second wires is as common port.
4. transducer according to claim 3, it is characterised in that the first area block is with the second area block
Raised, and a first area block forms one group of region unit with one symmetrical with it second area block,
The first area block and the form and dimension of the second area block that one group of region unit includes are identical.
5. according to the transducer described in Claims 1-4 any one, it is characterised in that the first area block to be circular or
Regular polygon region unit.
6. according to the transducer described in Claims 1-4 any one, it is characterised in that some first area blocks include
At least one circular or regular polygon region unit.
7. the transducer according to claim 3 or 4, it is characterised in that it is not in contact with each other between the first area block, it is described
It is not in contact with each other between second area block.
8. according to the transducer described in Claims 1-4 any one, it is characterised in that the spherical shell piezoelectric ceramic wafer
Center position is provided with a circular hole, in order to install Ultrasonic-B probe.
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| CN201711113054.9A CN107802969A (en) | 2017-11-13 | 2017-11-13 | A kind of sphere self-focusing ultrasonic phased array transducers |
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| CN201711113054.9A CN107802969A (en) | 2017-11-13 | 2017-11-13 | A kind of sphere self-focusing ultrasonic phased array transducers |
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| CN201711113054.9A Pending CN107802969A (en) | 2017-11-13 | 2017-11-13 | A kind of sphere self-focusing ultrasonic phased array transducers |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110507918A (en) * | 2019-09-17 | 2019-11-29 | 深圳先进技术研究院 | A kind of ultrasonic acupuncture and moxibustion system and ultrasonic acupuncture and moxibustion system control method |
| WO2020155348A1 (en) * | 2019-02-01 | 2020-08-06 | 深圳先进技术研究院 | Ultrasonic wave signal adjustment method, apparatus and ultrasonic array |
| CN112022206A (en) * | 2020-09-15 | 2020-12-04 | 南京大学 | Ultrasonic device for combined imaging and cyclic focusing emission transdermal drug delivery and control method |
| CN112023243A (en) * | 2020-09-15 | 2020-12-04 | 南京大学 | Transdermal drug delivery device with ultrasonic circulating focusing emission and control method |
| CN112023244A (en) * | 2020-09-15 | 2020-12-04 | 南京大学 | Transdermal drug delivery device with ultrasonic multipoint focusing emission and control method |
| CN112022207A (en) * | 2020-09-15 | 2020-12-04 | 南京大学 | Ultrasonic device for combined imaging and multi-point focusing emission transdermal drug delivery and control method |
| CN115624690A (en) * | 2022-10-14 | 2023-01-20 | 江苏省声学产业技术创新中心 | Bowl-shaped piezoelectric ceramic structure for transdermal drug delivery instrument and application thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2020155348A1 (en) * | 2019-02-01 | 2020-08-06 | 深圳先进技术研究院 | Ultrasonic wave signal adjustment method, apparatus and ultrasonic array |
| CN110507918A (en) * | 2019-09-17 | 2019-11-29 | 深圳先进技术研究院 | A kind of ultrasonic acupuncture and moxibustion system and ultrasonic acupuncture and moxibustion system control method |
| CN112022206A (en) * | 2020-09-15 | 2020-12-04 | 南京大学 | Ultrasonic device for combined imaging and cyclic focusing emission transdermal drug delivery and control method |
| CN112023243A (en) * | 2020-09-15 | 2020-12-04 | 南京大学 | Transdermal drug delivery device with ultrasonic circulating focusing emission and control method |
| CN112023244A (en) * | 2020-09-15 | 2020-12-04 | 南京大学 | Transdermal drug delivery device with ultrasonic multipoint focusing emission and control method |
| CN112022207A (en) * | 2020-09-15 | 2020-12-04 | 南京大学 | Ultrasonic device for combined imaging and multi-point focusing emission transdermal drug delivery and control method |
| CN112023243B (en) * | 2020-09-15 | 2022-03-25 | 南京大学 | Transdermal drug delivery device with ultrasonic circulating focusing emission and control method |
| CN112023244B (en) * | 2020-09-15 | 2022-07-08 | 南京大学 | Transdermal drug delivery device with ultrasonic multipoint focusing emission and control method |
| CN115624690A (en) * | 2022-10-14 | 2023-01-20 | 江苏省声学产业技术创新中心 | Bowl-shaped piezoelectric ceramic structure for transdermal drug delivery instrument and application thereof |
| CN115624690B (en) * | 2022-10-14 | 2023-10-31 | 江苏省声学产业技术创新中心 | Bowl-shaped piezoelectric ceramic structure for transdermal drug delivery instrument and application thereof |
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Application publication date: 20180316 |
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