CN105105790B - A kind of transuterine fallopian tubal supersonic detection method, diagnostic equipment and transducer - Google Patents
A kind of transuterine fallopian tubal supersonic detection method, diagnostic equipment and transducer Download PDFInfo
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- CN105105790B CN105105790B CN201510559176.5A CN201510559176A CN105105790B CN 105105790 B CN105105790 B CN 105105790B CN 201510559176 A CN201510559176 A CN 201510559176A CN 105105790 B CN105105790 B CN 105105790B
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Abstract
The invention discloses a kind of transuterine fallopian tubal supersonic detection method, diagnostic equipment and transducer, this method includes：Centre frequency is sent into fallopian tubal detected part by diameter 0.5mm ~ 5mm ultrasound catheter for ultrasonic transducer in 10MHz ~ 100MHz fallopian tubal through uterus；To the 360 degree of transmittings of fallopian tubal detected part, receive ultrasonic signal；Withdraw ultrasonic transducer in fallopian tubal simultaneously.The diagnostic equipment includes：Diameter 0.5mm ~ 5mm ultrasound catheter, its front end are provided with ultrasonic transducer in the fallopian tubal that centre frequency is 10MHz ~ 100MHz, and rear end connection withdraws/drive device；Withdraw/drive device connection electronic imaging system.The transducer includes：The ultrasonic transduction unit of close-connected back sheet, piezoelectric layer and acoustic matching layer composition successively.Ultrasonic transducer is sent into fallopian tubal position by the present invention through uterus, improves imaging resolution, penetrance is strong, no blind area.
Description
Technical field
The present invention relates to fallopian tubal diagnostic equipment, more particularly to a kind of transuterine fallopian tubal supersonic detection method, diagnostic equipment
And transducer.
Background technology
Tubal occlusion is the main cause of disease for causing female acyesis, accounts for 25% to 35%.Fallopian tubal is connection ovary
Channel between uterus, defeated ovum, storage ovum, semen deposition, the place that sperm ovum binding is provided are served as, has transported embryonated egg to endometrium
Function.If fallopian tubal blocks, a series of processes of becoming pregnant such as sperm ovum binding will be hindered, so as to cause female acyesis.It is defeated
Oviduct is located at uterus both sides, and the fallopian tubal per side has two openings, and the inner is opened on uterine cavity and is connected with the lateral angle in the fundus of uterus,
Outer end opening is located at the top of ovary in cavum peritoneale.Whole fallopian tubal is elongated tortuous tubular structure, and total length about 70-130 is in the least
Rice, about 5 millimeters of diameter.The reason for causing tubal occlusion is mainly caused by inflammation, and tunica mucosa tubae uterinae occurs inflammatory and changed, defeated
Degeneration or fall in flakes occur for oviduct epithelium, cause tunica mucosa tubae uterinae adhesion, then block fallopian tubal tube chamber or umbrella portion.
Diagnosis for fallopian tubal is the key step treated tubal occlusion and then treat thus caused female infertility
Suddenly.The technology that can carry out influenceing to learn diagnosis on tubal occlusion at present has：Laparoscope, hysteroscope and coaxial falloposcopy.
Laparoscope is a kind of endoscope for stretching into abdominal cavity.An aperture is opened in belly during operation, lens of laparoscope is inserted
It is intraperitoneal, pelvic cavity and intraperitoneal tissue and internal organs situation are observed by the minisize pick-up head of front end, are clear that ovum
The overall structure and surrounding tissue of nest and fallopian tubal.But the technology can not observe the structure and lesion inside fallopian tubal, Wu Faping
The degree of valency tubal occlusion and position.
Hysteroscope is that one kind stretches into intrauterine endoscope.Hysteroscope transcervical is stretched into uterus during operation, by preceding
The minisize pick-up head at end observes intrauterine situation.The technology can observe fallopian tubal in intrauterine opening, but can not stretch into
Fallopian tubal observes fallopian tubal internal structure and congestion situations.
Coaxial falloposcopy is a kind of endoscope for stretching into fallopian tubal.It is made up of a soft imaging fibre, can be stretched into
Fallopian tubal carries out optical imagery to whole fallopian tube lumen internal structure, congestion situations, but visual field is small, and imaging resolution is low
(millimeter rank), and be only capable of being imaged tissue surface, it is impossible to tissues observed Deep Lesions.
All there is the shortcomings that certain in existing three kinds of technologies, laparoscope and hysteroscope can only be carried out from the outside of fallopian tubal
Observation, although coaxial falloposcopy can be observed the inside of fallopian tubal, it is only capable of being imaged tissue surface, it is impossible to sees
Examine tissue Deep Lesions.Therefore, current fallopian tubal diagnostic techniques can not be carried out comprehensive to fallopian tubal, effectively be detected.
The content of the invention
The present invention is directed to above-mentioned problems of the prior art, proposes a kind of transuterine fallopian tubal ultrasound detection side
Method, diagnostic equipment and transducer, using ultrasonic imaging principle, penetrance and imaging resolution are improved, not only can be to defeated ovum
The interior surface of tubing is imaged, and improves detection depth, and field of view is big, in the absence of blind area.
In order to solve the above technical problems, the present invention is achieved through the following technical solutions：
The present invention provides a kind of transuterine fallopian tubal supersonic detection method, and it comprises the following steps：
S11：Centre frequency is passed through into a diameter of 0.5mm~5mm for ultrasonic transducer in 10MHz~100MHz fallopian tubal
Ultrasound catheter through uterus be sent into fallopian tubal detected part, to reduce the detecting distance of ultrasonic transducer in the fallopian tubal；
S12：To described 360 degree of transmittings of fallopian tubal detected part, ultrasonic signal is received, to know fallopian tubal portion to be measured
The cross sectional information of position；
S13：Simultaneously withdraw ultrasonic transducer in fallopian tubal, with know withdraw it is multiple described defeated at diverse location on path
The cross sectional information of oviduct detected part.
It is preferred that the step S12 also includes：The ultrasonic signal is focused, to reduce the sensing of ultrasonic signal
Angle factor improves imaging resolution, while to reduce scattering volume strong to reduce scattering of the fallopian tubal detected part to ultrasonic signal
Degree.
The present invention also provides a kind of transuterine supersonic diagnosis of oviduct instrument, and it includes：
Ultrasound catheter, the front end of the ultrasound catheter are provided with ultrasonic transducer in fallopian tubal；Ultrasound is led described in fallopian tubal
A diameter of 0.5mm~5mm of pipe；The centre frequency of ultrasonic transducer is 10MHz~100MHz in the fallopian tubal, the ultrasound
Conduit is used to ultrasonic transducer in the fallopian tubal is sent into fallopian tubal detected part through uterus；
Withdraw/drive device；
And electronic imaging system, the electronic unit of reconstruction image is mounted with thereon；Wherein：
The rear end of the ultrasound catheter with it is described withdraw/drive device is connected；It is described to withdraw/drive device and the electronics
Imaging system is connected.
Ultrasonic transducer is microsensor in the fallopian tubal of the present invention, can be entered through uterus (diameter is generally less than 5mm)
Fallopian tubal position.It is described withdraw/ultrasound catheter first by seal wire delivered to fallopian tubal position by drive device, then rotation, slowly return
Remove ultrasound catheter and carry out ultrasonic examination, it is possible to a series of fallopian tubal cross section is seen on the display screen of electronic imaging system
Image and 3-D view, adjuvant clinical doctor are diagnosed to lesion in fallopian tubal, and doctor can also be guided by its image
Biopsy is performed the operation or done in life.
Ultrasonic transducer is sent into fallopian tubal position by the present invention through uterus, high using ultrasonic imaging principle, imaging resolution
(micron level), picture clarity is improved, and its penetration capacity is strong, can not only observe the interior surface of fallopian tubal, moreover it is possible to
Tissues observed Deep Lesions, penetration depth is up to more than 5 millimeters；In addition, by 360 degree of rotations of conduit, withdraw, can be by acquisition
Two bit images are converted to 3-D view, and three-dimensionalreconstruction is carried out to whole fallopian tubal, so as to without observation dead angle.
It is preferred that ultrasonic transducer is simple beam ultrasonic transducer or cylindrical type array ultrasonic transducing in the fallopian tubal
Device；
When ultrasonic transducer is simple beam ultrasonic transducer in the fallopian tubal, ultrasonic transducer exists in the fallopian tubal
360 degree of rotations in the presence of the ultrasound catheter；
When ultrasonic transducer cylindrical type array ultrasound transducer in the fallopian tubal, ultrasonic transducer in the fallopian tubal
Including multiple ultrasonic transduction units along the 360 degree of distributions in the face of cylinder.
The design of ultrasound catheter of the present invention mainly has two kinds：Machinery rotating type and electronically phased array formula.Machinery rotation
Rotatable is the rotation by the transducer of single array element in the range of 360 degree, and launches ultrasonic wave, while fallopian tubal section is anti-
The sound collecting being emitted back towards, by image procossing, fallopian tubal cross sectional image is obtained, driving transducer will be had concurrently by now withdrawing device
The function of rotation.The transducer of electronically phased array formula arranges in cylindrical type, without rotation, the method encouraged using electronic delay,
The sound collecting that fallopian tubal section is reflected back, fallopian tubal cross sectional image is obtained after image procossing.
The transducer corresponding with both designs has two kinds, is respectively：(1) single array element planar transducer of simple beam,
Single array element curved transducer (as shown in Figure 1) of simple beam；(2) simple beam more array element ring transducers (such as Fig. 6, such as Fig. 7,
As shown in Figure 8), the transducer (as shown in Figure 2) of cylindrical type array.
It is preferred that ultrasonic transducer is ultrasonic focusing energy transducer in fallopian tubal in the fallopian tubal, can be by ultrasound
The self structure of transducer, which is improved, makes it have focusing function, also can add focusing unit in the front end of ultrasonic transducer.
The sound intensity of medical ultrasound detection is defined as acoustic energy in unit area, that is, is equal to total energy W and beam area
Than：
Clearly for given acoustical power, reduce beam area S, just can increase sound intensity I, so as to improve image checking
Signal to noise ratio.
For given Space Angle d Ω, ultrasonic scattering sound intensity isTo sky
Between volume integral.Wherein Sv is volume scattering coefficient.Dv is scattering volume member, is defined asWherein：R is
Ultrasonic transducer range-to-go, c are the velocities of sound, and τ is pulse length；WithRespectively launch and receive
Angle factor is pointed to, its principle is as shown in Figure 3.
It is not difficult to find out, reduces and point to angle factorWith, will directly improve the resolution ratio of image checking.When
When ultrasonic transducer has focusing function in fallopian tubal, sensing angle factor is not only reducedWith, improve into
As the resolution ratio of detection；Scattering volume dv is also reduced simultaneously, reduce further the scattering strength of environment in fallopian tubal, so as to
The signal to noise ratio (signal dispersion noise ratio) of image checking is improved, improves the quality of the definition, i.e. image of imaging.
The realization that the present invention focuses on ultrasonic technique can be divided into by the method for realization：(1) mechanical structure focuses on；(2) electronics gathers
It is burnt.Mechanical structure focuses on can be divided into whole acoustic structure focusing and sound lens focusing again.
It is preferred that ultrasonic transducer includes close-connected back sheet, piezoelectric layer and acoustic matching successively in the fallopian tubal
Layer；Wherein：
The back sheet and/or the piezoelectric layer and/or the acoustic matching layer have mechanical curved surface, and it is to use overall sound
Learn structure focusing technology to focus on to realize, the radius of curvature of the mechanical curved surface determines according to predetermined focal length f, (ionospheric) focussing factor K
Focal length f and transducer aperture d ratio are defined as, i.e.,：K=f/d, aperture d size can be according to predetermined (ionospheric) focussing factor K and focal lengths
F is determined.
It is preferred that ultrasonic transducer includes close-connected back sheet, piezoelectric layer sound, matching layer successively in the fallopian tubal
And acoustic lens；Wherein：
The acoustic lens has mechanical curved surface, and it is sound lens focusing, and its radius of curvature determines according to predetermined focal length f,
(ionospheric) focussing factor K is defined as focal length f and transducer aperture d ratio, i.e.,：K=f/d, aperture d size can according to predetermined focusing because
Sub- K and focal length f is determined.
It is preferred that the acoustic lens is plano-convex or plano-concave lens.
It is preferred that ultrasonic focusing energy transducer includes multiple ultrasonic transduction units and multiple delay electricity in the fallopian tubal
Road, it is electron focusing；Wherein：
Each ultrasonic transduction unit connects a delay circuit, is changed to compensation sound wave from focus to each ultrasound
Time difference caused by the path difference of energy unit, path difference and time difference determine according to predetermined centre-to-centre spacing deviation；I-th surpass
The distance of sound transducing unit to central axis is Di, by centre-to-centre spacing deviation DiThe path difference of introducing is：
Time difference TiFor：Wherein：I=1,2 ..., 5, f be focal length, and c is the velocity of sound.
It is preferred that the multiple ultrasonic transduction unit is concentrically arranged or array arrangement.
It is preferred that when the multiple ultrasonic transduction unit is concentrically arranged, it is that donut is arranged or Fang Huan is arranged with one heart
Cloth.
The present invention also provides ultrasonic transducer in a kind of fallopian tubal, and it includes：Ultrasonic transduction unit；It includes close successively
Back sheet, piezoelectric layer and the acoustic matching layer of connection；Wherein：
The centre frequency of the ultrasonic transduction unit is 10MHz~100MHz；
The ultrasonic transduction unit is used to convert electrical signals to ultrasonic signal and launch, and is also used for the ultrasound that will be received
Signal is converted to electric signal.
It is preferred that also including focus ultrasonic unit, the ultrasonic signal for launching the ultrasonic transduction unit gathers
It is burnt.
It is preferred that the focusing unit is specially the shape on the back sheet, the piezoelectric layer and the acoustic matching layer
Into mechanical curved surface.
It is preferred that the focusing unit is specially the acoustic lens with mechanical curved surface, the acoustic lens changes with the ultrasound
The acoustic matching layer of energy unit closely connects.
It is preferred that the ultrasonic transduction unit is including multiple；
The focusing unit is specially multiple delay circuits, and each ultrasonic transduction unit connects a delay electricity
Road.
Compared to prior art, the present invention has advantages below：
(1) a kind of transuterine fallopian tubal supersonic detection method, diagnostic equipment and transducer provided by the invention, ultrasound is changed
Can device be sent into through uterus in fallopian tubal, convey ultrasound detection conduit through uterus, come in and gone out using human body natural's cavity, without from belly
Osculum is cut, is complete noninvasive diagnostic mode；
(2) transuterine fallopian tubal supersonic detection method, diagnostic equipment and transducer of the invention, utilize ultrasonic imaging
Principle, the cross section of fallopian tubal can be imaged, and the imaging depth of the cross section, up to more than 5 millimeters, resolution ratio can
Up to 100 microns, the Deep Lesions of oviduct tissue can be observed；
(3) of the invention transuterine fallopian tubal supersonic detection method, diagnostic equipment and transducer, by withdrawing for conduit,
Two dimensional image can be converted to 3-D view, to whole fallopian tubal carry out three-dimensional reconstruction, expand field of view, in the absence of regarding
Wild dead angle；
(4) when transuterine fallopian tubal ultrasonic transducer of the invention has focusing function, fallopian tubal can further be reduced
The scattering strength of interior environment, the signal to noise ratio of image checking is further improved, so as to improve the definition of imaging.
Certainly, any product for implementing the present invention it is not absolutely required to reach all the above advantage simultaneously.
Brief description of the drawings
Embodiments of the present invention are described further below in conjunction with the accompanying drawings：
Fig. 1 is the schematic diagram of ultrasonic transducer in the fallopian tubal of embodiments of the invention 1；
Fig. 2 is the schematic diagram of cylindrical array transducer；
Fig. 3 is the volume scattering coefficient of ultrasonic transducer and the schematic diagram of scattering sound intensity；
Fig. 4 is the schematic diagram of ultrasonic focusing energy transducer in the fallopian tubal of embodiments of the invention 2；
Fig. 5 is the schematic diagram of ultrasonic focusing energy transducer in the fallopian tubal of embodiments of the invention 3；
Fig. 6 is the schematic diagram of ultrasonic focusing energy transducer in the fallopian tubal of embodiments of the invention 4；
Fig. 7 is the left view that ultrasonic focusing energy transducer is donut arrangement in the fallopian tubal of embodiments of the invention 4；
Fig. 8 is the left view that ultrasonic focusing energy transducer is concentric Fang Huan arrangements in the fallopian tubal of embodiments of the invention 4；
Fig. 9 is the left view that ultrasonic focusing energy transducer is array arrangement in the fallopian tubal of embodiments of the invention 4；
Figure 10 is the schematic diagram of the transuterine supersonic diagnosis of oviduct instrument of the present invention；
Figure 11 is the detects schematic diagram of the transuterine supersonic diagnosis of oviduct instrument of the present invention；
Figure 12 is the flow chart of the transuterine fallopian tubal supersonic detection method of the present invention.
Label declaration：1- ultrasound catheters, 2- withdraw/drive device, 3- electronic imaging systems, 4- vaginas, 5- uterus, and 6- is defeated
Oviduct；
Ultrasonic transducer in 11- fallopian tubals；
111- back sheets, 112- piezoelectric layers, 113- acoustic matching layers, 114- lens.
Embodiment
Embodiments of the invention are elaborated below, the present embodiment is carried out lower premised on technical solution of the present invention
Implement, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following implementation
Example.
Ultrasonic transducer in the fallopian tubal of the present invention, including：Ultrasonic transduction unit, it includes close-connected backing successively
Layer, piezoelectric layer and acoustic matching layer, the aperture of ultrasonic transducer is 0.3mm~3mm；Ultrasonic transduction unit is used to change electric signal
For ultrasonic signal and launch, the ultrasonic signal for being also used for receiving is converted to electric signal.
Embodiment 1：Using ultrasonic transducer in the fallopian tubal of simple beam technology
With reference to Fig. 1, ultrasonic transducer in the fallopian tubal using simple beam technology is described in detail in the present embodiment, it include by according to
The ultrasonic transduction unit that secondary closely coupled back sheet 111, piezoelectric layer 112 and acoustic matching layer 113 form.Accordingly, band
The ultrasound catheter for moving its motion drives its 360 degree rotations.
In different embodiments, ultrasonic transducer can also be cylindrical type array ultrasound transducer in fallopian tubal, and it includes more
The individual ultrasonic transduction unit along the 360 degree of distributions in the face of cylinder, as shown in Figure 2.Correspondingly, having driven the ultrasound catheter of motion only needs to drive
Move it to move forward and backward, it is not necessary to rotate.
Ultrasonic transducer can enter fallopian tubal position by ultrasound catheter through uterus in the fallopian tubal of the present embodiment, reduce
Detecting distance, working frequency can be brought up to 10MHz~100MHz, so as to improve laterally and axially resolution ratio, improved into
The resolution ratio of picture, contributes to clinical detection.
In order to further improve imaging definition, it is poly- that ultrasonic transducer in fallopian tubal can be arranged to ultrasound in fallopian tubal
Burnt transducer, it can reduce sensing angle factorWith, the further resolution ratio for directly improving image checking；Its
On the original basis, focusing unit is further comprises, focusing unit is used to enter the ultrasonic signal of ultrasonic transduction unit transmitting
Line focusing, it can be realized by following two modes：(1) mechanical structure focuses on；(2) electron focusing.Mechanical structure focuses on
Whole acoustic structure focusing and sound lens focusing can be divided into again.This is described with reference to specific embodiment.
Embodiment 2：Using ultrasonic focusing energy transducer in the fallopian tubal of whole acoustic structure focusing technology
The schematic diagram of ultrasonic focusing energy transducer in the fallopian tubal of the present embodiment is illustrated in figure 4, it includes closely connecting successively
Back sheet 111, piezoelectric layer 112 and the acoustic matching layer 113 connect, wherein：Back sheet 111, piezoelectric layer 112 and acoustic matching layer 113
All there is mechanical curved surface, the radius of curvature of three can be calculated and set according to the requirement of focusing acoustic field.(ionospheric) focussing factor K is defined as
Focal length f and transducer aperture d ratio, i.e.,：K=f/d.After (ionospheric) focussing factor K and focal length f, aperture d chi can be calculated
It is very little.
Embodiment 3：Using ultrasonic focusing energy transducer in the fallopian tubal of sound lens focusing technology
The schematic diagram of ultrasonic focusing energy transducer in the fallopian tubal of the present embodiment is illustrated in figure 5, it includes closely connecting successively
Back sheet 111, piezoelectric layer 112, acoustic matching layer 113 and the acoustic lens 114 connect, wherein, acoustic lens 4 has mechanical curved surface, its
Radius of curvature can be calculated and set according to the requirement of focusing acoustic field.
Acoustic lens 114 can be planoconvex spotlight or plano-concave lens, and it is determined according to the velocity of sound of lens material.For the velocity of sound
It is planoconvex spotlight, as shown in phantom in Figure 6 less than the lens material of the medium velocity of sound；It is higher than the lens of the medium velocity of sound for the velocity of sound
Material, it is plano-concave lens, as shown in solid in Fig. 6.
Embodiment 4：Using ultrasonic focusing energy transducer in the fallopian tubal of electron focusing technology
The schematic diagram of ultrasonic focusing energy transducer in the fallopian tubal of the present embodiment is illustrated in figure 6, it includes multiple ultrasounds and changed
Energy unit and multiple delay circuit T, the corresponding delay circuit T of each ultrasonic transduction unit,
The present embodiment is by taking five concentric square ring transducing units as an example, its left view is as shown in fig. 7, be denoted as e1 ... e5,
The sound wave time that F points reach each ultrasonic transduction unit from free found field is different.Therefore, total reception signal is different
The superposition of the signal of phase, output signal are unlikely to be maximum.The output of each ultrasonic transduction unit terminates a delay electricity
Road, carry out compensation sound wave from F points to the time difference caused by the path difference of each ultrasonic transduction unit.I-th of ultrasonic transduction unit arrives
The distance of central axis is Di, then by centre-to-centre spacing deviation DiThe path difference of introducing is：
Time difference TiFor：
In formula, i=1,2 ..., 5, f be focal length, and c is the velocity of sound.As given Di, by the time difference T for adjusting delay circuiti, can
To focus f, reach variable focal length focus ultrasonic.
In different embodiments, multiple ultrasonic transduction units can also be that concentric Fang Huan arranges, and its left view is as shown in Figure 8；
Can also be array arrangement, its left view is as shown in Figure 9.In above-described embodiment, the material of piezoelectric layer 112 can be piezoelectric ceramics
Material, piezoelectric thick material, piezoelectric film material, piezo-electric ceramic composite material or piezoelectric monocrystalline composite material；Surpass in fallopian tubal
Sound focusing transducer can be PMUT or CMUT.
Embodiment 5：Supersonic diagnosis of oviduct instrument
As shown in Figure 10, for the present embodiment supersonic diagnosis of oviduct instrument structural representation, it include ultrasound catheter 1,
Withdraw/drive device 2 and electronic imaging system 3, the front end of ultrasound catheter 1 be provided with ultrasonic transducer in fallopian tubal, rear end
Connection withdraws/drive device 2, withdraw/drive device 2 is connected with electronic imaging system 3, it is mounted with electronic imaging system 3 again
The electronic unit of image is built, fallopian tubal cross-sectional image and 3-D view are rebuild according to the ultrasonic signal of reception, so as to according to figure
As judging fallopian tubal lesion.Wherein：Ultrasonic transducer is defeated as described by any one in embodiment 1-4 in fallopian tubal
Ultrasonic transducer in oviduct, the aperture of ultrasonic transducer is the millimeter order of magnitude herein, can be through uterus between 0.3mm~3mm
Into fallopian tubal position.
In the present embodiment, ultrasound catheter 1 specifically includes：Imaging core, be centered around imaging core outside catheter sheath and
Positioned at the pipe joint of imaging core rear end, the front end for being imaged core is provided with ultrasonic transducer in fallopian tubal；Withdraw/drive dress
2 are put to specifically include：Control ultrasound catheter 1 move motor, motor-drive circuit and control ultrasonic transducer transmitting with
The transmitting-receiving change-over circuit of conversion is received, pipe joint is installed on motor by catheter interface and is connected；Electronic imaging system 3 has
Body includes：The excitation of ultrasonic transducer and receiving circuit, signal and image processing apparatus and user interface.
Detects schematic diagram ultrasound catheter 1 as shown in figure 11 for the transuterine supersonic diagnosis of oviduct instrument of the present embodiment is straight
Connect and ultrasonic transducer in fallopian tubal successively Via vagina 4, uterus 5 are sent in fallopian tubal 6, ultrasonic transducer is super in fallopian tubal
Acoustic conducting pipe inner rotation, withdraw and move ahead, be not directly contacted with fallopian tubal musculature, tissue will not be caused to damage.
Embodiment 6：
It is the flow chart of the transuterine fallopian tubal supersonic detection method of the present embodiment as shown in figure 12, it includes following step
Suddenly：
S11：Centre frequency is passed through into a diameter of 0.5mm~5mm for ultrasonic transducer in 10MHz~100MHz fallopian tubal
Ultrasound catheter through uterus be sent into fallopian tubal detected part；
S12：To the 360 degree of transmittings of fallopian tubal detected part, ultrasonic signal is received, to know the transversal of fallopian tubal detected part
Face information；
S13：Ultrasonic transducer in fallopian tubal is withdrawn simultaneously, multiple fallopian tubals on path at diverse location are withdrawn to know
The cross sectional information of detected part.
In preferred embodiment, step S12 also includes：The ultrasonic signal of transmitting is focused, to reduce ultrasonic signal
Angle factor is pointed to improve imaging resolution, while reduces scattering volume and ultrasonic signal is dissipated to reduce fallopian tubal detected part
Intensity is penetrated, further improves imaging resolution, and increase ultrasound detection scope.
Disclosed herein is only the preferred embodiments of the present invention, and this specification is chosen and specifically describes these embodiments, is
It is not limitation of the invention to preferably explain the principle and practical application of the present invention.Any those skilled in the art
The modifications and variations done in the range of specification, it all should fall in the range of the present invention protects.
Claims (6)
- A kind of 1. transuterine supersonic diagnosis of oviduct instrument, it is characterised in that including：Ultrasound catheter, the front end of the ultrasound catheter are provided with ultrasonic transducer in fallopian tubal, the ultrasound catheter it is a diameter of 0.5mm~5mm；The centre frequency of ultrasonic transducer is 10MHz~100MHz in the fallopian tubal, and the ultrasound catheter is used to pass through Ultrasonic transducer in the fallopian tubal is sent into fallopian tubal detected part by uterus；Withdraw/drive device；And electronic imaging system, the electronic unit of reconstruction image is mounted with thereon；Wherein：The rear end of the ultrasound catheter with it is described withdraw/drive device is connected；It is described to withdraw/drive device and the electronic imaging System is connected；Ultrasonic transducer includes close-connected back sheet, piezoelectric layer sound, matching layer and acoustic lens successively in the fallopian tubal；Its In：The acoustic lens has mechanical curved surface, and its radius of curvature determines according to predetermined focal length f, and (ionospheric) focussing factor K is defined as focal length f With transducer aperture d ratio, i.e.,：K=f/d, aperture d size can determine according to predetermined (ionospheric) focussing factor K and focal length f；Ultrasonic transducer is ultrasonic focusing energy transducer in fallopian tubal in the fallopian tubal, for the detected part into the fallopian tubal 360 degree of transmittings, ultrasonic signal is received, to know the cross sectional information of detected part in the fallopian tubal；And for described super Acoustical signal is focused, to reduce sensing angle factorWithAnd scattering volume dv, improve dividing for image checking Resolution, the scattering strength of environment in fallopian tubal is reduced, improve the signal to noise ratio of image checking, so as to improve the precision of imaging and clear Degree；Wherein：For given Space Angle d Ω, ultrasonic scattering sound intensity is pairTo space Volume integral；Wherein, Sv is volume scattering coefficient, and dv is scattering volume member, is defined asWherein, r is Ultrasonic transducer range-to-go, c are the velocities of sound, and τ is pulse length；WithThe finger respectively launched and received To angle factor.
- 2. supersonic diagnosis of oviduct instrument according to claim 1, it is characterised in that ultrasonic transducer is in the fallopian tubal Simple beam ultrasonic transducer or cylindrical type array ultrasound transducer；When ultrasonic transducer is simple beam ultrasonic transducer in the fallopian tubal, ultrasonic transducer is described in the fallopian tubal 360 degree of rotations in the presence of ultrasound catheter；When ultrasonic transducer cylindrical type array ultrasound transducer in the fallopian tubal, ultrasonic transducer includes in the fallopian tubal Multiple ultrasonic transduction units along the 360 degree of distributions in the face of cylinder.
- 3. supersonic diagnosis of oviduct instrument according to claim 1, it is characterised in that the acoustic lens is that plano-convex or plano-concave are saturating Mirror.
- 4. supersonic diagnosis of oviduct instrument according to claim 1, it is characterised in that focus ultrasonic transducing in the fallopian tubal Device includes multiple ultrasonic transduction units and multiple delay circuits；Wherein：Each ultrasonic transduction unit connects a delay circuit, to compensation sound wave from focus to each ultrasonic transduction list Time difference caused by the path difference of member, path difference and time difference determine according to predetermined centre-to-centre spacing deviation；I-th of ultrasound is changed The distance of energy unit to central axis is Di, by centre-to-centre spacing deviation DiThe path difference of introducing is：When Between poor TiFor：Wherein：I=1,2 ..., 5, f be focal length, and c is the velocity of sound.
- 5. supersonic diagnosis of oviduct instrument according to claim 4, it is characterised in that the multiple ultrasonic transduction unit is same The heart is arranged or array arrangement.
- 6. supersonic diagnosis of oviduct instrument according to claim 5, it is characterised in that when the multiple ultrasonic transduction unit is same When the heart is arranged, it is that donut is arranged or Fang Huan arranges with one heart.
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| CN113457003A (en) * | 2021-08-05 | 2021-10-01 | 广东光声医疗科技有限公司 | Multi-frequency vibration ultrasonic leading-in device for large-depth transvaginal mucosa |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101403726A (en) * | 2008-04-30 | 2009-04-08 | 硕德（北京）科技有限公司 | Spacing multi-beam parallel synthesis phased array ultrasonic detection fast subsection algorithm |
| CN102670242A (en) * | 2011-04-07 | 2012-09-19 | 南京大学 | Ultrasonic focusing transducer |
| CN102743191A (en) * | 2012-06-28 | 2012-10-24 | 华南师范大学 | Focusing rotary scanning photoacoustic ultrasonic blood vessel endoscope imaging device and focusing rotary scanning photoacoustic ultrasonic blood vessel endoscope imaging method |
| CN205006922U (en) * | 2015-09-02 | 2016-02-03 | 上海爱声生物医疗科技有限公司 | Through uterine oviduct diasonograph and transducer |
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2015
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403726A (en) * | 2008-04-30 | 2009-04-08 | 硕德（北京）科技有限公司 | Spacing multi-beam parallel synthesis phased array ultrasonic detection fast subsection algorithm |
| CN102670242A (en) * | 2011-04-07 | 2012-09-19 | 南京大学 | Ultrasonic focusing transducer |
| CN102743191A (en) * | 2012-06-28 | 2012-10-24 | 华南师范大学 | Focusing rotary scanning photoacoustic ultrasonic blood vessel endoscope imaging device and focusing rotary scanning photoacoustic ultrasonic blood vessel endoscope imaging method |
| CN205006922U (en) * | 2015-09-02 | 2016-02-03 | 上海爱声生物医疗科技有限公司 | Through uterine oviduct diasonograph and transducer |
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