CN109662731A - A kind of phased array power Vltrasonic device of center band two-dimensional imaging probe - Google Patents
A kind of phased array power Vltrasonic device of center band two-dimensional imaging probe Download PDFInfo
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- CN109662731A CN109662731A CN201910137188.7A CN201910137188A CN109662731A CN 109662731 A CN109662731 A CN 109662731A CN 201910137188 A CN201910137188 A CN 201910137188A CN 109662731 A CN109662731 A CN 109662731A
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- 238000003384 imaging method Methods 0.000 title claims abstract description 35
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- 238000012285 ultrasound imaging Methods 0.000 claims abstract description 22
- 230000008878 coupling Effects 0.000 claims abstract description 21
- 238000010168 coupling process Methods 0.000 claims abstract description 21
- 238000005859 coupling reaction Methods 0.000 claims abstract description 21
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- 238000011282 treatment Methods 0.000 claims description 13
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000000560 biocompatible material Substances 0.000 claims description 2
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- 239000007864 aqueous solution Substances 0.000 claims 1
- 238000007872 degassing Methods 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 230000001225 therapeutic effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 15
- 238000002604 ultrasonography Methods 0.000 description 9
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
- A61B8/4483—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device characterised by features of the ultrasound transducer
- A61B8/4488—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device characterised by features of the ultrasound transducer the transducer being a phased array
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/42—Details of probe positioning or probe attachment to the patient
- A61B8/4209—Details of probe positioning or probe attachment to the patient by using holders, e.g. positioning frames
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/42—Details of probe positioning or probe attachment to the patient
- A61B8/4272—Details of probe positioning or probe attachment to the patient involving the acoustic interface between the transducer and the tissue
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
- A61B8/4444—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device related to the probe
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/24—Probes
- G01N29/2437—Piezoelectric probes
- G01N29/245—Ceramic probes, e.g. lead zirconate titanate [PZT] probes
Abstract
The invention discloses a kind of phased array power Vltrasonic devices of center band two-dimensional imaging probe, it includes coupling water pocket, supporting structure, phased array power changing device and two-dimensional array ultrasound imaging probe, the coupling water pocket is wrapped in the top and surrounding side of supporting structure as the full inclusion component of waterproof, the upper surface for coupling water pocket and supporting structure is curved surface, the upper surface of the supporting structure is equipped with the locating slot for installing phased array power changing device, middle part is equipped with the through-hole for installing two-dimensional array ultrasound imaging probe, the two-dimensional array ultrasound imaging probe is mounted on through hole center and uses glue sealing.The present invention handles relevant range using the heat that focus ultrasonic generates, and so that this regional temperature is risen to certain numerical value and continues for some time to reach therapeutic purposes；Its ultrasound imaging probe is using face battle array mode, and by the way of using rotation and translation, without Mechanical course, assembly is simpler, and resolution ratio consistency is more preferable when composograph.
Description
Technical field
The present invention relates to a kind of phased array power Vltrasonic devices of center band two-dimensional imaging probe, belong to medical device technology
Field.
Background technique
As ultrasound is in the fast development of medical field, power ultrasound more and more by as a kind for the treatment of means, and
It is diagnosed and is monitored using imaging ultrasound while power ultrasonic therapy.A kind of common device is in power Vltrasonic device
Bottom centre position is configured like guidance probe.Power Vltrasonic device transmitting focusing power ultrasonic out of human body extroversion human body,
Specific region forms biggish energy accumulating and changes tissue biological's characteristic in the region in human body, realizes treatment disease
Purpose.
Power Vltrasonic device is generally spherical crown shape, when power focused transducer and human body pass through water pocket coupling contact,
The bottom of energy converter and human body surface have a certain distance.Since ultrasound imaging probe frequency is high, decaying in vivo can be with
The increase decaying of distance becomes larger, thus before the treatment using imaging probe when need imaging probe stretching out a distance and contract as far as possible
The short distance between human body；When being treated, in order not to block power ultrasound, imaging probe will retract bottom；Retract bottom at
As probe and target area distance increasing, the decline of image quality thus influences real-time observing effect.Imaging ultrasound probe is general
Using convex battle array, perhaps linear array phased array needs mechanical scanning when diagnosis or monitoring；And existing two-dimensional array is phased
The technics comparing of battle array imaging probe is complicated, for diagnosis, the biggish region of monitoring rate, process large-scale two-dimensional array at
It is more difficult as popping one's head in.
To sum up, existing power focused ultrasound module consistency is difficult to ensure；Imaging probe is mounted on power probe curved surface
The bottom at center, too far apart from target area, decaying increase image quality and are deteriorated；Since imaging probe causes power super in center
The loss of sound；And existing two-dimensional array ultrasonic probe complex process, it is relatively difficult to do extensive face battle array.
Summary of the invention
In order to overcome the deficiencies of the above existing technologies, the present invention provides a kind of the phased of center band two-dimensional imaging probe
Battle array power Vltrasonic device.
To achieve the above object, the technical solution adopted by the present invention is that: a kind of phased array of center band two-dimensional imaging probe
Power Vltrasonic device, it is characterised in that: super including coupling water pocket, supporting structure, phased array power changing device and two-dimensional array
Acoustic imaging probe, the coupling water pocket are wrapped in the top and surrounding side of supporting structure, coupling as the full inclusion component of waterproof
The upper surface of Heshui capsule and supporting structure is curved surface, and the upper surface of the supporting structure is equipped with for installing phased array function
The locating slot of rate energy converter, middle part are equipped with the through-hole for installing two-dimensional array ultrasound imaging probe, the two-dimensional array ultrasound
Imaging probe is mounted on through hole center and is sealed using glue sealing or Automatic manual transmission form.
Further, the phased array power changing device is by multiple groups even number cylindrical type piezoelectric-array and multiple groups odd number cylindrical type
Piezoelectric-array arrangement forms (but the arrangement mode for not limiting odd number or even arrays).
Further, the inside of the even number cylindrical type piezoelectric-array and odd number cylindrical type piezoelectric-array is inlaid at random
Distribution or equally distributed piezo column, and piezo column array is installed on supporting element, is arranged in circular arc camber.
Further, directrix radius of curvature is 5cm-30cm, matching in the single-curved surface of the phased array power changing device
Treatment region body surface curved surface, primitive sum are 64-16384, centre frequency 0.2MHz-10MHz.
Further, be mounted in the coupling water pocket couplant serve as phased array power changing device with couple between water pocket
Acoustic propagation transition medium, coupling water pocket material be meet biocompatible materials；The couplant is de aerated water or de aerated water
Solution can be circulated by external peristaltic pump.
Further, the material of the supporting structure is any in stainless steel, aluminium, plastics or epoxy material.
Further, the two-dimensional array ultrasound imaging probe include acoustic lens (acoustic lens can not also be added), matching layer,
Piezo-electricity composite material layer, back sheet, flexible circuit board and probing shell, the probing shell are the hollow structure being connected to up and down,
Its bottom is equipped with rear cover, and the surrounding of rear cover is provided with strip groove, sets gradually the matching layer, pressure from top to bottom inside probing shell
Composite layer, flexible circuit board and back sheet.
Further, the piezo-electricity composite material layer, which is used, receives class piezoelectric ceramics or using it as the 1- of substrate to emit
The piezo-electricity composite material of structure, upper and lower surface is gold-plated, silver-colored, copper or nickel；The front and back sides of piezo-electricity composite material layer be equipped with by
The double-face electrode that front electrode and opposite electrode are constituted, two sides are equipped with bound edge electrode, and wherein front electrode is divided into N row, reverse side
Electrode is divided into M column, and bound edge electrode is divided into N row, and front N row electrode guides to the outermost on reverse side side by bound edge electrode
Two column electrodes, each electrode are divided along joint-cutting and according to main array element parameter.
Further, the top of the back sheet is equipped with boss, and surrounding is equipped with card slot on side；The flexible circuit
Hollow out among plate, size of slotting among it is matched with the boss size of back sheet, and the surrounding of flexible circuit board extends outwardly
And can bend downward, flexible circuit board is stuck in the card slot of back sheet surrounding after bending, the depth and flexible circuit of surrounding card slot
The consistency of thickness of plate, and flexible circuit board is pierced by from the strip groove of rear cover surrounding after bending.
Further, the electrode of the pad on the flexible circuit board and M*N type piezo-electricity composite material layer corresponds,
The boss of the back sheet is bonded in the bottom of piezo-electricity composite material layer.
Beneficial effects of the present invention are as follows:
Supporting structure surface of the present invention is single-curved surface structure, and variable curvature matches different body surface curved surfaces；And it supports
The closer distance fitting human body of structural member surface concave inward structure, imaging probe does not have to retract when treatment, and image quality can be improved.
Piezo column array is installed on supporting structure of the present invention can increase according to target area range or reduce number of arrays
The size of mesh, power probe can not be limited by ceramic material size, and do not had to be bent and can be adjusted not by being delayed
Same geometrical focus position.
The direction of cylindrical piezo array of the invention in circular arc direction can be the center of structural member, may not be structure
Center, the initial focus position in such circular arc direction can not be fixed position.
The piezo column array installed on supporting structure of the present invention can random distribution can be uniformly distributed, advantageously reduce secondary lobe
And graing lobe.Meanwhile supporting structure is single-curved surface, the piezo column of installation can not have to bending (curved yet in protection scope), from
And improve the consistency and yields of power probe.
The number of leads of imaging probe of the present invention be M+N and can a point odevity be listed in surrounding lead, FPC is integrally glued with backing
It connects on the composite material with matching layer, bonding wire number is few and is easily guaranteed that pad and electrode correspond.
Imaging probe of the present invention can improve focusing effect with auxiliary power focus ultrasonic.
The present invention handles relevant range using the heat that focus ultrasonic generates, this regional temperature is made to rise to certain numerical value
And it continues for some time to reach therapeutic purposes.It wherein loads recyclable Coupled with Flow agent and serves as the mistake between energy converter and water pocket
It crosses medium and takes away the heat of energy converter generation.
Ultrasound imaging probe of the invention using face battle array mode, compared to using rotation and translate by the way of, without machine
Tool control, assembles simpler, and resolution ratio consistency is good when composograph.
Detailed description of the invention
Fig. 1 is overall structure decomposition diagram of the present invention.
Fig. 2 is overall structure diagrammatic cross-section of the present invention.
Fig. 3 is two-dimensional array ultrasound imaging probe exploded view.
Fig. 4 is the M*N type piezo-electricity composite material layer of uncoated electrode.
Fig. 5 is that M*N type piezo-electricity composite material layer divides front electrode schematic diagram.
Fig. 6 is that M*N type piezo-electricity composite material layer divides opposite electrode schematic diagram.
Fig. 7 is that front electrode adds schematic diagram after matching layer.
Fig. 8 is the flexible circuit board schematic diagram of intermediate fluting.
Fig. 9 is boss type back sheet schematic diagram.
Figure 10 is that flexible circuit board and boss backing are coupled figure.
Figure 11 is schematic diagram after flexible circuit board bending.
Figure 12 is the sound head schematic diagram of two-dimensional array ultrasound imaging probe.
Figure 13 is the sound head encapsulation schematic diagram of two-dimensional array ultrasound imaging probe.
Figure 14 is even number cylindrical type piezoelectric-array schematic diagram, wherein (A) is front schematic view, (B) is schematic rear view.
Figure 15 is odd number cylindrical type piezoelectric-array schematic diagram, wherein (A) is front schematic view, (B) is schematic rear view.
Figure 16 is supporting structure schematic diagram.
Figure 17 is that imaging probe and cylindrical type piezoelectric-array are assembled in schematic diagram in supporting structure.
Figure 18 is coupling water pocket schematic diagram, wherein (A) is front schematic view, (B) is schematic rear view.
Figure 19 is schematic diagram after coupling water pocket installation.
In the figure, it is marked as 1- couples water pocket, 2- odd number cylindrical type piezoelectric-array, 3- even number cylindrical type piezoelectric-array, 4- branch
Support structure part, 5- probing shell, 6- matching layer, 7- piezo-electricity composite material layer, 8- back sheet, 9- flexible circuit board, 10- rear cover,
11- front electrode, 12- opposite electrode, 13- bound edge electrode, 14- boss, 15- card slot, 16- strip groove.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
As illustrated in fig. 1 and 2, a kind of phased array power Vltrasonic device of center band two-dimensional imaging probe comprising coupling water
Capsule 1, supporting structure 4, phased array power changing device and two-dimensional array ultrasound imaging probe, the coupling water pocket 1 are used as waterproof
Full inclusion component is wrapped in the top and surrounding side of supporting structure 4, and the upper surface for coupling water pocket 1 and supporting structure 4 is equal
For curved surface, the upper surface of the supporting structure 4 is equipped with the locating slot for installing phased array power changing device, and middle part is equipped with and uses
In the through-hole of installation two-dimensional array ultrasound imaging probe, the two-dimensional array ultrasound imaging probe is mounted on through hole center and uses
Glue sealing either mechanical seal (such as sealing ring cooperative mechanical is assembled).
The phased array power changing device is by multiple groups even number cylindrical type piezoelectric-array 3 and multiple groups odd number cylindrical type piezoelectric-array
2 arrange.The inside of the even number cylindrical type piezoelectric-array 3 and odd number cylindrical type piezoelectric-array 2 be inlaid with random distribution or
Equally distributed piezo column, and piezo column array is installed on supporting element, is arranged in circular arc camber.Battle array can be reduced by increasing
Column number improves the performance of emission array with arrangement mode is changed, and power array is not limited by ceramic size.
As shown in figure 3, the two-dimensional array ultrasound imaging probe includes matching layer 6, piezo-electricity composite material layer 7, back sheet
8, flexible circuit board 9 and probing shell 5, the probing shell 5 are the hollow structure being connected to up and down, and bottom is equipped with rear cover 10,
The surrounding of rear cover 10 is provided with strip groove 16, sets gradually the matching layer 6, Piezoelectric anisotropy material inside probing shell 5 from top to bottom
The bed of material 7, flexible circuit board 9 and back sheet 8.
As shown in figure 4, preparing M*N type piezo-electricity composite material first, piezoelectric ceramics column is cut simultaneously according to acoustical demands parameter
Filled polymer is milled to the specified parameter of acoustics；Wherein each main array element may include multiple sons in M*N type piezo-electricity composite material
Array element, there are spaces as bound edge electrode 13 on composite material periphery.Particular row columns, array number are formulated according to demand.
As shown in Figure 5,6, double-face electrode is prepared on M*N type piezo-electricity composite material, front electrode 11 is divided into N row,
Opposite electrode 12 is divided into M column, there are bound edge electrodes 13 on the column electrode both sides M, and positive N row electrode is guided to by bound edge electrode
Two column electrodes and it is divided into N row on reverse side side, electrode is divided along joint-cutting and according to main array element parameter.
As shown in fig. 7, add matching layer 6 on 11 face of front electrode, match the unlimited system of the number of plies, the parameter of matching layer 6 by
Acoustical demands are formulated.
As shown in Figure 8,9, the intermediate flexible circuit board (FPC) and boss backing slotted of preparation, among FPC fluting size and
Boss size is fully mated, and the height of boss and the thickness of FPC are completely the same；Pad and lead on FPC plate use odevity
It is spaced in FPC plate surrounding lead, the welding of easy to process and lead.
As shown in Figure 10,11, FPC plate is mounted on boss backing, and FPC is bent downward 90 °, and FPC plate is complete after bending
It is stuck in the card slot 15 of boss backing surrounding entirely, the depth of surrounding groove and the consistency of thickness of FPC plate, and flexible circuit after bending
Plate is pierced by from the strip groove 16 of rear cover surrounding.
As shown in figure 12, boss backing and M*N type piezo-electricity composite material layer are aligned, that is, can guarantee pad on FPC plate with
The electrode of M*N type piezo-electricity composite material corresponds, then boss backing and composite layer are bonded together.It can be by electrode
It draws to obtain two-dimensional imaging sound head by FPC.
As shown in figure 13, sound head is mounted in probing shell 5, two-dimensional array ultrasonic imaging can be obtained in encapsulation rear cover 10
Probe.
As shown in Figure 14,15, even number cylindrical type piezoelectric-array 3 and odd number cylindrical type piezoelectric-array 2 are prepared, and respectively in circle
The front plated electrode of column type piezoelectric-array, electrode can be gold, silver, copper, nickel etc..Bound edge electrode is prepared in reverse side, it will positively
The reverse side in piezoelectric-array is drawn in pole, is easy to lead welding.
As shown in figure 16, two-dimensional array ultrasound imaging probe is coupled simultaneously by the boss and transducer mount of shell
Bonding and waterproof sealing.The even number cylindrical type piezoelectric-array 3 and odd number cylindrical type piezoelectric-array 2 are mounted on energy converter again
It is alternatively arranged and is bonded and waterproof sealing on the card slot of bracket.
As shown in figure 17, coupling water pocket 1 is mounted on supporting structure 4, coupling water pocket 1 is wrapped in supporting structure 4 entirely
The central filler couplant of surrounding, water pocket and transducer mount.
In the present invention, about two-dimensional array ultrasound imaging probe, the M*N piezoelectric-array of piezo-electricity composite material layer is arranged by M row N
Piezoelectricity array element is arranged, for receiving and emitting ultrasonic signal；Bound edge row electrode or bound edge column electrode are used for piezoelectric ceramics
The electrode of array draws in the same face, and realizes to apply pumping signal to piezoelectricity array element or receive piezoelectric ceramics and generate pulse signal；
Decoupling material of the polymer-filled between each piezoelectricity array element joint-cutting, for connecting piezoelectricity pillar and reducing each piezoelectricity array element
String acoustic jamming.Matching layer realizes the acoustic impedance match of piezoelectricity array element and object medium, the ensonification ability and band of very high energy converter
Width, thickness and parameter are determined according to piezoelectric-array working frequency and parameters,acoustic.Back lining materials are for absorbing the piezoelectric-array back side
Sound energy, thickness and parameter are determined according to piezoelectricity battle array working frequency and parameters,acoustic；FPC lead is used for the electrode of piezoelectric-array
Lead is linked into circuit system.
When imaging transducer emits, region according to the observation, system can calculate the array element serial number (example for needing to motivate in advance
Such as: needing first array element work, only need to apply pumping signal on the first row and first row electrode be first array element
Work), the voltage signal of system incentive is applied on the electrode of transducer array by FPC lead, and piezoelectric-array is believed in voltage
Number excitation under vibration generate ultrasonic radiation.Ultrasound reflects when reaching object to be detected, and the echo-signal radiation of reflection exists
On supersonic array, piezoelectric-array includes testee information since direct piezoelectric effect can generate relevant voltage signal in electrode surface
Echo-signal pass system back again by FPC and handled, so that it may object to be detected is imaged.
Application method of the invention are as follows: smear coupling agent for medical use (general gel when ultrasound diagnosis in water pocket lower surface first
Shape substance), external mechanical structure adjustment treatment probe positions are manually controlled, center probe is probably located at the upper center position of lesion
It sets, starts two-dimensional array imaging probe, controlling different channels by electronic delay can realize that space transverse and longitudinal section is scanned, detection disease
Stove area simultaneously integrally grasps focal zone three-dimensional information, shows in computer and delimit treatment region on figure, determines treatment side by software
Case, given therapy target position and number of parameters, power ultrasound and the auxiliary power of two-dimensional array can be set according to the position of each target spot
Electronic delay is set, controls the focus depth and deflection, treatment, which starts rear energy, to be continued for some time in each target position, simultaneously
Using temperature rise at algorithm real time monitoring target spot, next target spot is jumped to after reaching threshold value, continues until all target treatments
It completes, in entire therapeutic process, couplant takes away the heat that energy converter generates in treatment by external peristaltic pump circulation in water pocket.
It completes to assess treatment Preliminary Results by imaging probe after treating.
The basic principles, main features and advantages of the invention have been shown and described above.Those skilled in the art
It should be appreciated that the protection scope that the above embodiments do not limit the invention in any form, all to be obtained using modes such as equivalent replacements
The technical solution obtained, falls in protection scope of the present invention.
Part that the present invention does not relate to is the same as those in the prior art or can be realized by using the prior art.
Claims (10)
1. a kind of phased array power Vltrasonic device of center band two-dimensional imaging probe, it is characterised in that: including coupling water pocket, support
Structural member, phased array power changing device and two-dimensional array ultrasound imaging probe, the coupling water pocket is as the full inclusion component of waterproof
It is wrapped in the top and surrounding side of supporting structure, the upper surface for coupling water pocket and supporting structure is curved surface, the branch
The upper surface of support structure part is equipped with the locating slot for installing phased array power changing device, and middle part is equipped with for installing two-dimensional array
The through-hole of ultrasound imaging probe, the two-dimensional array ultrasound imaging probe are mounted on through hole center and use glue sealing or machine
The sealing of tool assembling form.
2. a kind of phased array power Vltrasonic device of center band two-dimensional imaging probe according to claim 1, feature exist
In: the phased array power changing device by multiple groups even number cylindrical type piezoelectric-array and the arrangement of multiple groups odd number cylindrical type piezoelectric-array and
At.
3. a kind of phased array power Vltrasonic device of center band two-dimensional imaging probe according to claim 2, feature exist
Random distribution or equally distributed is inlaid in: the inside of the even number cylindrical type piezoelectric-array and odd number cylindrical type piezoelectric-array
Piezo column, and piezo column array is installed on supporting element, is arranged in circular arc camber.
4. a kind of phased array power Vltrasonic device of center band two-dimensional imaging probe according to claim 1 or 2, feature
Be: directrix radius of curvature is 5cm-30cm in the single-curved surface of the phased array power changing device, and matching treatment region body surface is bent
Face, primitive sum are 64-16384, centre frequency 0.2MHz-10MHz.
5. a kind of phased array power Vltrasonic device of center band two-dimensional imaging probe according to claim 1, feature exist
In: it is described coupling water pocket in be mounted with couplant serve as phased array power changing device with couple between water pocket acoustic propagation transition Jie
Matter, coupling water pocket material are to meet biocompatible materials；The couplant be de aerated water or degassing aqueous solution, can be by outer
Portion's peristaltic pump circulates.
6. a kind of phased array power Vltrasonic device of center band two-dimensional imaging probe according to claim 1, feature exist
In: the material of the supporting structure is any in stainless steel, aluminium, plastics or epoxy material.
7. a kind of phased array power Vltrasonic device of center band two-dimensional imaging probe according to claim 1, feature exist
In: the two-dimensional array ultrasound imaging probe includes matching layer, piezo-electricity composite material layer, back sheet, flexible circuit board and probe
Shell, the probing shell are the hollow structure being connected to up and down, and bottom is equipped with rear cover, and the surrounding of rear cover is provided with strip groove, are visited
Head interior of shell sets gradually the matching layer, piezo-electricity composite material layer, flexible circuit board and back sheet from top to bottom.
8. a kind of phased array power Vltrasonic device of center band two-dimensional imaging probe according to claim 7, feature exist
In: the piezo-electricity composite material layer, which is used, receives class piezoelectric ceramics or using it as the piezoelectricity of the 1-3/2-2 structure of substrate to emit
Composite material, upper and lower surface is gold-plated, silver-colored, copper or nickel；The front and back sides of piezo-electricity composite material layer are equipped with by front electrode and reverse side
The double-face electrode that electrode is constituted, two sides are equipped with bound edge electrode, and wherein front electrode is divided into N row, and opposite electrode is divided into M column,
Bound edge electrode is divided into N row, and front N row electrode guides to the two column electrode of outermost on reverse side side, each electricity by bound edge electrode
Pole is divided along joint-cutting and according to main array element parameter.
9. a kind of phased array power Vltrasonic device of center band two-dimensional imaging probe according to claim 7, feature exist
In: the top of the back sheet is equipped with boss, and surrounding is equipped with card slot on side；Hollow out among the flexible circuit board, wherein
Between fluting size matched with the boss size of back sheet, and the surrounding of flexible circuit board extends outwardly and can bend downward, curved
Flexible circuit board is stuck in the card slot of back sheet surrounding after folding, the depth of surrounding card slot and the consistency of thickness of flexible circuit board, and
Flexible circuit board is pierced by from the strip groove of rear cover surrounding after bending.
10. a kind of phased array power Vltrasonic device of center band two-dimensional imaging probe according to claim 9, feature exist
In: the electrode of pad and M*N type piezo-electricity composite material layer on the flexible circuit board corresponds, the boss of the back sheet
It is bonded in the bottom of piezo-electricity composite material layer.
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