CN104883977A - Probe having plurality of acoustic paths - Google Patents
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- CN104883977A CN104883977A CN201280078086.9A CN201280078086A CN104883977A CN 104883977 A CN104883977 A CN 104883977A CN 201280078086 A CN201280078086 A CN 201280078086A CN 104883977 A CN104883977 A CN 104883977A
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- 239000000523 sample Substances 0.000 title claims abstract description 54
- 230000000694 effects Effects 0.000 claims abstract description 4
- 238000000926 separation method Methods 0.000 claims description 6
- 230000005236 sound signal Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000002604 ultrasonography Methods 0.000 abstract description 35
- 239000000463 material Substances 0.000 abstract description 10
- 239000003822 epoxy resin Substances 0.000 description 6
- 229920000647 polyepoxide Polymers 0.000 description 6
- 239000000945 filler Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
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
- A61B8/4444—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device related to the probe
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- 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
- B06B1/0644—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 a single piezoelectric element
- B06B1/0662—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 a single piezoelectric element with an electrode on the sensitive surface
- B06B1/067—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 a single piezoelectric element with an electrode on the sensitive surface which is used as, or combined with, an impedance matching layer
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/18—Methods or devices for transmitting, conducting or directing sound
- G10K11/26—Sound-focusing or directing, e.g. scanning
- G10K11/30—Sound-focusing or directing, e.g. scanning using refraction, e.g. acoustic lenses
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- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Public Health (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Mechanical Engineering (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Veterinary Medicine (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Biophysics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Abstract
A probe having a plurality of acoustic paths is disclosed. The disclosed probe comprises: a housing: a piezoelectric material which is attached to the inside of the housing and generates an ultrasound signal by a piezoelectric effect; a matching layer which has a plurality of layers for gradually reducing an acoustic impedance difference between the piezoelectric material and an inspected object; a probe lens which allows the ultrasound signal to be focused on a spot at which the inspected object is positioned, and which receives an ultrasound echo signal reflected from the inspected object; and a cable for transmitting the ultrasound echo signal to a body, wherein the matching layer has a structure with a plurality of acoustic paths by the plurality of layers.
Description
Technical field
The present embodiment relates to a kind of probe with multiple sound travel.More specifically, relate to a kind of probe with multiple sound travel, under the state of piezoelectric element non-physical separation on the direction that ultrasound wave generates and vertical direction, the structure only by matching layer makes this probe on the direction that ultrasound wave generates and vertical direction, have different multiple sound travels of more than at least two parts.
Background technology
It should be noted that, the content below recorded only provides background information related to the present embodiment, not forms prior art.
Under normal circumstances, for there is the transducer (Transducer) of altofrequency (High Frequency), by relatively reducing the size of piezoelectric element in the direction that ultrasonic signal generates with vertical (Elevation) direction, focal depth (Focal Depth) can be shortened, but the degree reducing the size of ultrasonic signal generation direction and vertical direction is limited, and focal depth therefore can not be made to foreshorten to a certain degree.
Namely, when needs to a certain degree below short-range focal depth time, near field (Near Field) beam distribution (Beam Profile) can be improved by using the method forming Multi-raw etc. along ultrasonic signal generation direction and vertical direction, but along with the increase of passage (Channel) quantity, the structure of probe (Probe) and diagnostic ultrasound equipment and manufacture method etc. thereof also will be thereupon complicated.In addition, although can by the element comprising matching layer (Matching Layer) being made the shape mechanically with concave surface (Concave) thus deal with problems transducer being inner, but the size generating direction and vertical direction due to ultrasonic signal is smaller, thus be not easy to manufacture.
Summary of the invention
(1) technical problem that will solve
The main purpose of the present embodiment is, a kind of probe with multiple sound travel is provided, under the state of piezoelectric element non-physical separation on the direction that ultrasound wave generates and vertical direction, the structure only by matching layer makes this probe on the direction that ultrasound wave generates and vertical direction, have the different multiple sound travels of more than at least two parts.
(2) technical scheme
According to an aspect of the present embodiment, a kind of probe is provided, it is characterized in that, comprising: shell (Housing); Be pasted on described enclosure, generated the piezoelectric element (PiezoelectricMaterial) of ultrasound wave (Ultrasound) signal by piezoelectric effect (PiezoelectricEffect); There is the matching layer of the multilamellar for reducing acoustic impedance (Acoustic Impedance) difference between described piezoelectric element and subject gradually; Focusing on (Focusing) described ultrasonic signal in the position residing for described subject receives the probe lens (Lens) of ultrasonic echo signal of described subject reflection; And the cable for described ultrasonic echo signal is transmitted to main body, wherein, described matching layer has the structure of multiple sound travel (Acoustic Path) by described multiform stratification.
(3) beneficial effect
As mentioned above, according to the present embodiment, under the state of piezoelectric element non-physical separation on the direction that ultrasound wave generates and vertical direction, structure only by matching layer makes probe on the direction that ultrasound wave generates with vertical direction, have the different multiple sound travels of at least two parts, therefore, generate in direction and vertical direction along ultrasound wave, be positioned at the speed of propagation (Propagation) speed faster than center of edge (Edge) part, thus make it have the structure can assembling in-plant subject.That is, when the structure can not assembled by prior art, under the state of non-physical separation piezoelectric element, can assemble and be positioned at in-plant subject, there is beneficial effect.
Accompanying drawing explanation
Fig. 1 is the front view of the diagnostic ultrasound equipment that the probe with the present embodiment is shown.
Fig. 2 is the axonometric chart of the probe that the present embodiment is shown.
Fig. 3 is the axonometric chart of the partial cut of the probe internal structure that the present embodiment is roughly shown.
Fig. 4 is the sectional view of the probe that the present embodiment is shown.
Fig. 5 is the sectional view of the matching layer internal structure that the present embodiment is roughly shown.
Fig. 6 utilizes the probe of the present embodiment to assemble the schematic diagram being positioned at the result of in-plant subject.
Detailed description of the invention
Below, with reference to accompanying drawing, the present embodiment is described in detail.
Fig. 1 is the front view of the diagnostic ultrasound equipment that the probe with the present embodiment is shown.
The diagnostic ultrasound equipment 100 of the present embodiment comprises probe 110, main body 120, cable 130, adapter 140, display unit 150 and user input unit 160.Although the diagnostic ultrasound equipment 100 that the present embodiment is recorded only includes probe 110, main body 120, cable 130, adapter 140, display unit 150 and user input unit 160, this is the technological thought of illustratively the present embodiment, as long as the present embodiment art has the technical staff of Conventional wisdom, just can in the scope of fundamental characteristics not exceeding the present embodiment, the component comprised diagnostic ultrasound equipment 100 carries out various amendment and distortion and applies.
Described diagnostic ultrasound equipment 100 comprise for launch ultrasonic signal to subject (subject) and receive the probe 110 of ultrasonic echo (Echo) signal of subject, user input unit 160 and be provided with the devices such as display unit 150, for generating the main body 120 of the image of subject.Namely, diagnostic ultrasound equipment 100 receives operation or the input command (Instruction) of user by user input unit 160, by pop one's head in 110 operation, launch ultrasonic signal to subject and receive the ultrasonic echo signal that reflects from this subject and form Received signal strength, image is formed (such as based on the Received signal strength formed by main body 120, B-pattern or C-pattern), the image formed is exported by display unit 150.
By with main body 120 cable 130 that is connected of one or adapter 140, popping one's head in 110 is connected with main body 120.That is, probe 110 is the parts directly contacted with the diagnosis position of subject.Described probe 110 performs to be launched ultrasonic signal to subject and receives the ultrasonic echo signal of subject reflection and form the operation of Received signal strength.That is, pop one's head in and 110 launch ultrasonic signal to subject by performing and receive the ultrasonic echo signal of subject reflection and form the operation of Received signal strength, obtain B-mode image (or C-mode image).In addition, probe 110, based on the control signal received from main body 120, sends ultrasonic signal to subject and receives the ultrasonic echo signal formation Received signal strength of subject reflection.In addition, 110 are popped one's head in based on the control signal received from main body 120, by ultrasonic signal with pulse recurrence frequency (PulseRepetition Frequency; PRF) mode sends and receives thus form Received signal strength in Region Of Interest.Herein, Received signal strength comprises Doppler signal and noise signal (ClutterSignal).The signal that Doppler signal reflects based on blood flow as ultrasound wave, has frequency higher, but intensity (Intensity) is relatively weak.It is lower that noise signal has frequency, but intensity is relatively high.
In addition, pop one's head in 110 can comprise for perform send and received ultrasonic signal operation, for perform hyperacoustic transmission boundling and receive boundling operate Beam-former (not shown).Herein, probe 110 comprises multiple one dimension (Dimension) or two-dimensional array type transducer (Array Transducer).By moderately postponing the input time of the pulse inputting each transducer, the ultrasound wave light beam (Beam) of boundling sends along transmission scanning line (Scanline) to subject by probe 110.In addition, the ultrasonic echo signal of subject reflection has different time of reception and is input to each transducer, and the ultrasonic echo signal of input exports to Beam-former by each transducer.When popping one's head in transmission ultrasonic signal, Beam-former regulate probe in each transducer driving time thus to ad-hoc location boundling ultrasonic signal, consider that the time of each transducer of the ultrasonic echo signal arrival probe that subject reflects is different, each ultrasonic echo signal of probe is applied with time delay, thus boundling ultrasonic echo signal.
The Received signal strength that the ultrasonic echo signal that main body 120 receives based on probe 110 is formed, forms B-mode image or C-mode image, and is exported by the display unit 150 by possessing B-mode image or C-mode image.That is, main body 120 is general based on Received signal strength, forms B-mode image, and is exported by the display unit 150 possessing B-mode image.
User input unit 160 receives operation or the input command of user.Herein, user command can be the order preset for controlling diagnostic ultrasound equipment 100.
Fig. 2 is the axonometric chart of the probe that the present embodiment is shown.
The probe 110 of the present embodiment comprises shell 210, probe lens 220 and cable 130.
Shell 210 is the parts covering probe 110 internal module, forms the body of probe 110.Described shell 210 can comprise the transducer 410 of ultrasonic echo signal of the transmitting of ultrasonic signal, the reception of ultrasonic echo signal and conversion receiver.Herein, the inside of shell 210 can comprise by judging that the presence or absence of the voltage that diagnostic ultrasound equipment 100 inputs can generate the transducer 410 of ultrasonic signal.
The skin etc. of probe lens 220 and the transmitting of ultrasonic signal, the reception of ultrasonic echo signal and subject diagnoses location contacts.In addition, probe lens 220 can concentration ultrasonic signal in the position at subject place, and receive subject reflection ultrasonic echo signal.Cable 130 connects main body 120 and the shell 210 of diagnostic ultrasound equipment 100.And cable 130 transmits ultrasonic echo signal to main body.
Fig. 3 is the axonometric chart of the partial cut of the probe internal structure that the present embodiment is roughly shown, Fig. 4 is the sectional view of the probe that the present embodiment is shown.
The probe 110 of the present embodiment comprises piezoelectric element (Piezoelectric Material) 310, matching layer 320 and backing layer 330.
It is inner that piezoelectric element 310 is pasted on shell 210, and the periodic vibration caused by piezoelectric effect (PiezoelectricEffect) generates ultrasound wave.Now, the ultrasonic signal of generation is changed into the signal of telecommunication (Electric Signal) by piezoelectric element 310.In addition, generate direction with on vertical (Elevation) direction along ultrasound wave, piezoelectric element 310 is not physically separated.
Matching layer 320 has multilamellar 510,520 and 530 to reduce acoustic impedance (Acoustic Impedance) difference between piezoelectric element 310 and subject gradually.Now, matching layer 320 changes the signal of telecommunication generated based on piezoelectric element 310 into acoustical signal.Herein, acoustic impedance refers to the density of material and the product of speed as the inherent character of material.
The matching layer 320 of the present embodiment has the structure of the multiple sound travels (Acoustic Path) based on multilamellar 510,520 and 530.Now, be included in the multilamellar 510,520 and 530 of matching layer 320, high acoustic impedance layer is disposed in and closes on side with piezoelectric element 310.In addition, matching layer 320 is arranged to, and makes multilamellar 510,520 and 530 have the different sound travel of more than at least two parts on the direction that ultrasonic electrical signal generates and vertical direction.
The matching layer 320 of the present embodiment, based on acoustic impedance difference, comprises N-1 matching layer (N is the natural number of more than 2) 510, N matching layer 520 and matching layer cover 530.Now, matching layer 320 have only formed by matching layer cover 530 the 1st sound travel () shown in Fig. 5 1., to be stacked the 2nd sound travel () of shape by N-1 matching layer 510 and matching layer cover 530 matching layer shown in Fig. 5 2. and to be stacked the N sound travel () of shape by N-1 matching layer 510 and N matching layer 520 shown in Fig. 5 3..
N-1 matching layer 510 directly receives ultrasonic electrical signal from piezoelectric element 310 and transmits.
The arrangements that N matching layer 520 and N-1 matching layer 510 are stacked with at least two-layer above layer.In addition, N matching layer 520, with the guide center of N-1 matching layer, is stacked with the shape of the length being shorter than N-1 matching layer.In addition, N matching layer 520 and N-1 matching layer 510 are stacked, and form the N the sound travel () ultrasonic electrical signal via N-1 matching layer 510 being changed into ultrasonic sound signals shown in Fig. 5 3..
Matching layer cover 530 has the shape of a part for a part and the piezoelectric element 310 that can cover N-1 matching layer 510, and it is positioned over the plane identical with N matching layer 520.In addition, matching layer cover 530 and N-1 matching layer 510 are stacked, and form the 2nd the sound travel () ultrasonic electrical signal via N-1 matching layer 510 being changed into ultrasonic sound signals shown in Fig. 5 2.; Formation directly receives ultrasonic electrical signal from piezoelectric element 310 and changes the 1st sound travel () of ultrasonic sound signals into shown in Fig. 5 1..
Backing layer 330 is positioned at after matching layer 320, can be in reverse to ultrasonic signal that probe lens 220 are launched, that be not directly used in inspection or diagnosis etc. in the ultrasound wave of absorption pressure electric device 310 generation.
As shown in Figure 4, transducer 410 can comprise matching layer 320, piezoelectric element 310 and the backing layer 330 that the signal of telecommunication that main body 120 is transmitted can be transformed into acoustical signal.Herein, matching layer 320 can reduce the acoustic impedance difference between piezoelectric element 310 and subject.
Below the material of the matching layer 320 to the present embodiment is described.The material of the matching layer 320 of the present embodiment is not limited to default certain material.Namely, object in view of the matching layer 320 of the present embodiment is down to low by acoustic impedance gradually by height, due to the material only using epoxy resin (Epoxy) that acoustic impedance cannot be obtained, the N-1 matching layer 510 closed on piezoelectric element 310 uses lower than the pottery (Ceramic) of piezoelectric element 310 acoustic impedance or in conventional epoxy resin, adds various filler (Filler) (such as, the powder (Powder) of the acoustic impedance such as tungsten (W), manganese (Mn), silicon dioxide (SiO2)).It should be noted that, the material of existing all acoustic impedance can use as filler, and the size of acoustic impedance is not to affect sound travel for standard.In addition, when filler mixes with epoxy resin, not lump and to be mixed into standard equably.
The manufacturing process of described matching layer 320 is described as follows, when manufacturing matching layer 320 with epoxy resin, filler predetermined amounts to be put in epoxy resin and mix homogeneously, solidify rear respectively with the thickness of each probe setting and size (Size) processing and fabricating, and bond (Bonding) by epoxy resin and miscellaneous part (Components).
Fig. 5 is the sectional view of the matching layer internal structure that the present embodiment is roughly shown.
As shown in Fig. 5 (a), when conventional matching layer only comprises MLH (MatchingLayer High) and MLL (Matching Layer Low) therein, (Propagation) speed of propagation will be identical, can be formed based on probe lens, the image of the subject that is positioned at specific focal point depth location.
In addition, as shown in Fig. 5 (b), when formation has the matching layer 320 of multiple sound travel, velocity of sound (V
strip) can be following relation, that is, matching layer cover 530> N matching layer 520> N-1 matching layer 510, acoustic impedance (Z
strip) relation as follows, that is, N-1 matching layer 510> matching layer cover 530> N matching layer.Now, the pass of spread speed is: the 1st sound travel (that is, shown in Fig. 5 1.) > the 2nd sound travel (that is, shown in Fig. 5 2.) > the 3rd sound travel (that is, shown in Fig. 5 3.).Namely, although at the generation direction of ultrasonic signal and the non-disjoining pressure electric device 310 of vertical direction, but the structure by means of only matching layer 320 can form the different sound travel of two or more, because the sound travel of edge (Edge) part is fast compared to the sound travel velocity of sound at center, can focuses on and be positioned at in-plant subject.
Namely, under the state of piezoelectric element 310 non-physical separation on the direction generated along ultrasound wave and vertical direction, by means of only the structure of matching layer 320, probe is made to have the different sound travel of at least two parts on ultrasound wave generation direction with vertical direction, therefore generate in direction and vertical direction along ultrasound wave, the spread speed of marginal portion faster than the spread speed at center, thus has the structure that can focus on and be positioned at in-plant subject.That is, in the structure that can not focus on shown in Fig. 5 (a), when piezoelectric element is not physically separated, focusing can be realized and be positioned at in-plant subject.
Namely, shown in Fig. 5 (a) utilize ordinary matches layer situation under, being positioned at in-plant subject to focus on, should generating in direction and vertical direction along ultrasound wave, disjoining pressure electric device and it is controlled respectively and makes concave surface (Concave) shape (such as
shape), but, as shown in Fig. 5 (b), the matching layer 320 with multiple sound travel forming the present embodiment need not generate disjoining pressure electric device 310 in direction and vertical direction along ultrasound wave and be made into concave, only rely on matching layer 320 to make it have the spread speed of concave, thus can focus on and be positioned at in-plant subject.
Fig. 6 utilizes the probe of the present embodiment to assemble the schematic diagram being positioned at the result of in-plant subject.
As shown in Figure 6, when the probe 110 of the present embodiment comprises matching layer 320 with multiple sound travel, front portion can be focused on.As shown in Fig. 6 (a), when use only comprises the ordinary matches layer 320 of MLH and MLL, spread speed is identical, by probe lens 220, can carry out imaging to the subject being positioned at Fig. 6 (a) specific focal point depth location.In addition, as shown in Fig. 6 (b), formed have multiple sound travel join layer 320 when, velocity of sound (V
strip) close be: matching layer cover 530> N matching layer 520> N-1 matching layer 510, acoustic impedance (Z
strip) close be: N-1 matching layer 510> matching layer cover 530> N matching layer, spread speed is closed: the 1st sound travel > the 2nd sound travel > the 3rd sound travel, as shown in 6 (b), imaging can be carried out to being positioned at relatively in-plant subject.
More than illustrate and be only used to the technological thought illustrating the present embodiment, as long as the those skilled in the art belonging to the present embodiment, in the scope of substitutive characteristics being no more than the present embodiment, can various amendment and distortion be carried out.Therefore, the present embodiment is not the technological thought in order to limit the present embodiment, but in order to be described, the scope of the technological thought of the present embodiment is not limited to above-described embodiment.The explanation that the protection domain of the present embodiment will carry out according to claims, is all considered to belong to the interest field of the present embodiment with all technological thoughts in its equivalency range.
Accompanying drawing illustrates labelling
100: diagnostic ultrasound equipment 110: probe
120: main body 130: cable
140: adapter 150: display unit
160: user input unit 210: shell
220: probe lens 310: piezoelectric element
320: matching layer 330: backing layer
410: transducer 510: the N-1 matching layer
520: the N matching layers 530: matching layer cover
Claims (10)
1. a probe, is characterized in that, comprising:
Shell;
Piezoelectric element, is pasted on described enclosure and generates ultrasonic signal by piezoelectric effect;
Matching layer, it has multilamellar, and described multilamellar is used for reducing the acoustic impedance difference between described piezoelectric element and subject gradually;
Probe lens, focus on described ultrasonic signal in the position residing for described subject and receive described subject reflection ultrasonic echo signal; And
Cable, by described ultrasonic echo signal to main body transmission,
Wherein, described matching layer forms the structure with multiple sound travel by described multilamellar.
2. pop one's head in as claimed in claim 1, it is characterized in that:
Described matching layer, based on described acoustic impedance difference, comprises N-1 matching layer (N is the natural number of more than 2), N matching layer and matching layer cover.
3. pop one's head in as claimed in claim 2, it is characterized in that:
Described matching layer cover has the shape that can cover a part for described N-1 matching layer and a part for described piezoelectric element, and is positioned in the plane identical with described N matching layer.
4. pop one's head in as claimed in claim 3, it is characterized in that:
The arrangements that described N matching layer and described N-1 matching layer are stacked with at least two-layer above layer.
5. pop one's head in as claimed in claim 3, it is characterized in that:
The length of described N matching layer is with the guide center of described N-1 matching layer, shorter than the length of described N-1 matching layer, and described N matching layer is stacked.
6. pop one's head in as claimed in claim 3, it is characterized in that:
Described matching layer have only by the hood-shaped one-tenth of described matching layer the 1st sound travel, be stacked the 2nd sound travel formed, the N sound travel being stacked shape by described N-1 matching layer and described N matching layer by described N-1 matching layer and described matching layer cover.
7. pop one's head in as claimed in claim 2, it is characterized in that: described matching layer comprises:
Described N-1 matching layer, directly receives described ultrasonic electrical signal from described piezoelectric element and transmits;
Described N matching layer, is stacked with described N-1 matching layer and has and change the described ultrasonic electrical signal via described N-1 matching layer into described ultrasonic sound signals; And
Described matching layer cover, be stacked with described N-1 matching layer, and there is the 2nd sound travel described ultrasonic electrical signal via described N-1 matching layer being changed into described ultrasonic sound signals, and have and directly receive described ultrasonic electrical signal from described piezoelectric element and be converted to the 1st sound travel of described ultrasonic sound signals.
8. pop one's head in as claimed in claim 1, it is characterized in that:
The layer that described acoustic impedance is high is arranged in the side closed on described piezoelectric element in the described multilamellar of described matching layer.
9. pop one's head in as claimed in claim 1, it is characterized in that:
Generate in direction and vertical direction at described ultrasonic electrical signal, the non-physical separation of described piezoelectric element.
10. pop one's head in as claimed in claim 1, it is characterized in that:
Described matching layer is arranged to described multilamellar on the generation direction and vertical direction of described ultrasonic electrical signal, has the sound travel that more than at least two parts are different.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/KR2012/009126 WO2014069697A1 (en) | 2012-11-01 | 2012-11-01 | Probe having plurality of acoustic paths |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104883977A true CN104883977A (en) | 2015-09-02 |
Family
ID=50627587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280078086.9A Pending CN104883977A (en) | 2012-11-01 | 2012-11-01 | Probe having plurality of acoustic paths |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR101697306B1 (en) |
| CN (1) | CN104883977A (en) |
| WO (1) | WO2014069697A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109073603A (en) * | 2016-04-18 | 2018-12-21 | 株式会社日立电力解决方案 | The image generating method of ultrasonograph device and ultrasonograph device |
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| KR20100105482A (en) * | 2009-03-18 | 2010-09-29 | 제너럴 일렉트릭 캄파니 | Multi-layered impedance matching structure for ultrasound probe |
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| JP2000300559A (en) * | 1999-04-26 | 2000-10-31 | Olympus Optical Co Ltd | Ultrasonic probe and its manufacture |
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| JP3982824B2 (en) * | 2004-03-04 | 2007-09-26 | 本多電子株式会社 | Array-type ultrasonic probe |
| US8232705B2 (en) * | 2010-07-09 | 2012-07-31 | General Electric Company | Thermal transfer and acoustic matching layers for ultrasound transducer |
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2012
- 2012-11-01 KR KR1020157010442A patent/KR101697306B1/en active IP Right Grant
- 2012-11-01 CN CN201280078086.9A patent/CN104883977A/en active Pending
- 2012-11-01 WO PCT/KR2012/009126 patent/WO2014069697A1/en active Application Filing
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| JP2000139916A (en) * | 1998-11-06 | 2000-05-23 | Olympus Optical Co Ltd | Ultrasonic probe |
| CN101379871A (en) * | 2006-01-31 | 2009-03-04 | 松下电器产业株式会社 | Ultrasonic probe |
| CN101536545A (en) * | 2006-11-08 | 2009-09-16 | 松下电器产业株式会社 | Ultrasound probe |
| KR20100105482A (en) * | 2009-03-18 | 2010-09-29 | 제너럴 일렉트릭 캄파니 | Multi-layered impedance matching structure for ultrasound probe |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109073603A (en) * | 2016-04-18 | 2018-12-21 | 株式会社日立电力解决方案 | The image generating method of ultrasonograph device and ultrasonograph device |
| CN109073603B (en) * | 2016-04-18 | 2021-04-09 | 株式会社日立电力解决方案 | Ultrasonic imaging apparatus and image generation method for ultrasonic imaging apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20150077417A (en) | 2015-07-07 |
| WO2014069697A1 (en) | 2014-05-08 |
| KR101697306B1 (en) | 2017-01-17 |
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