CN103028203B - Ultrasonic fat reducing treatment head and method of work thereof - Google Patents
Ultrasonic fat reducing treatment head and method of work thereof Download PDFInfo
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Abstract
The present invention provides a kind of ultrasonic fat reducing treatment head and method of work thereof, belongs to field of medical ultrasound treatment.Wherein, the method for work of this ultrasonic fat reducing treatment head, described ultrasonic fat reducing treatment head includes that a ultrasonic transducer, described method of work include: obtain the treatment situation in region to be treated；The size and location of the focal spot of ultrasonic transducer is determined according to acquired treatment situation；Adjust the running parameter of described ultrasonic transducer, with the size and location of focal spot determined by obtaining.Technical scheme can improve safety and the effectiveness of ultrasonic therapeutic.
Description
Technical field
The present invention relates to field of medical ultrasound treatment, particularly relate to a kind of ultrasonic fat reducing treatment head and work side thereof
Method.
Background technology
It is known that ultrasound wave interacts with tissue can produce some biological tissues effect.According to
The local sound intensity height of ultrasound wave and sound wave radiation pattern, these biological tissue's effects can be divided into heat effect and
Non-thermomechanical effect.The absorption of ultrasonic energy is caused it to be warming up to thermal necrosis by tissue heat effect phalangeal cell.
The cellular activity caused due to acoustic cavitation, acoustic streaming and local small amplitude motion increases to organize non-thermomechanical effect to refer to
And then make cellular morphology produce change, rupture, the phenomenon such as apoptosis.Affect the physics of ultrasound biological organizational effect
Factor includes sound field focusing form, frequency of sound wave, acoustic pressure amplitude, continuous or pulse sound radiation pattern (pulse
Repetition rate and dutycycle), standing-wave condition, medium static state pressure, temperature, viscid state and boundary condition
Etc. factor.
In recent years, biological tissue's effect of ultrasound wave is increasingly subject to widely studied at treatment ultrasound field and answers
With.High intensity ultrasound treatment melts at neoplastic fevers, external knock wave pulverizes urinary stone, medicine carries, blocking-up
The application of the aspects such as nerve conduction has new progress.
In fat-reducing and cosmetic applications field, ultrasound wave also manifests the advantage of its uniqueness, for example with external low frequency
Rate ultrasonic assistant Wicresoft liposuction procedures can strengthen local fat and destroy efficiency.Individually use external transmitting height
Intensity focused ultrasound destroys the method and apparatus of regional adipose tissue and is experiencing clinical verification, and manifests it
Curative effect, its safety also obtains preliminary identification.This type for the treatment of is the most selected needs area for treatment, then uses
External supersonic wave transducer transmitting focusing ultrasonic wave is in subcutaneous layer of fat, and tissue based on ultrasound wave is hot
Effect or mechanical effect principle are at current focal spot region destruction of adipose tissue, and pointwise is moved transducer and changed Jiao
Area for treatment needed for the covering of some position.Under the conditions of suitable area for treatment and dosage, ultrasonic disruption
Fatty tissue is decomposed via the autologous metabolism cycle of human body.
Use the type of focusing can be obviously improved the local focal sound intensity of ultrasound wave, and (-6dB is burnt to limit focal spot
Point sound intensity region) high sound intensity region is in the range of suitably, thus facility is accurately positioned in specific region and produces
Ultrasonic wave tissue effect desired by life.In focusing on ultrasonic fat reducing treatment, region to be treated is at subcutaneous fat
The degree of depth in Ceng and focal spot size have direct relation with safety and the effectiveness for the treatment of.First, from treatment peace
Full property angle considers, for avoiding focusing far field muscle and connective tissue and the shadow of focus near field skin histology
Ringing, the degree of depth and the axial length in region to be treated limited by fat deposit thickness, its focal spot region inside and outside
Enough secure border distances are had in boundary position should be comprised in fat deposit and apart from fat deposit inner and outer boundary.
Secondly, considering from treatment effectiveness angle, the transverse width in region to be treated affects single radiation treatment region
Size, transverse width is the widest, then every time area for treatment is the biggest, thus affects large area fat reducing treatment
Time length.
In actual therapeutic, for different fat deposit depth information, need to arrange different focal spots the degree of depth,
Axial length and transverse width, use Large focal spot to increase single therapy region, to relatively thin thicker fat deposit
Fat deposit use little focal spot, take into account Therapeutic safety and effectiveness.But in large area fat reducing treatment process
In, it is likely encountered the situation that single patient's body part fat deposit thickness changes greatly, is at this moment accomplished by frequency
Size, position and the shape of numerous change focal spot, and frequently replace treatment head meeting delay treating time.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of ultrasonic fat reducing treatment head and method of work thereof, it is possible to
Adjust the position of focal spot, size and shape in real time, improve safety and the effectiveness of ultrasonic therapeutic.
For solving above-mentioned technical problem, embodiments of the invention provide technical scheme as follows:
On the one hand, it is provided that the method for work of a kind of ultrasonic fat reducing treatment head, described ultrasonic fat reducing treatment head includes
One ultrasonic transducer, described method of work includes:
Obtain the treatment situation in region to be treated；
The size of focal spot, position and the shape of ultrasonic transducer is determined according to acquired treatment situation；
Adjust the running parameter of described ultrasonic transducer, with the size of focal spot, position and shape determined by obtaining
Shape.
Further, the treatment situation in described region to be treated includes the fat deposit thickness in region to be treated, institute
State and obtain the treatment situation in region to be treated and include:
To described field emission one ultrasound wave burst pulse to be treated；
Obtain the first ultrasonic echo and the fatty layer with muscle that coupling liquid reflects with the interface layer of epidermis
Between interface reflection the second ultrasonic echo between time interval；
Described time interval is multiplied by after the bulk sound velocity of fatty tissue divided by 2, obtains described region to be treated
Fat deposit thickness.
Further, the running parameter of the described ultrasonic transducer of described adjustment, with focal spot determined by obtaining
Size, position and shape include:
Adjust the focal length of described ultrasonic transducer and the ratio in aperture, with the size of focal spot determined by obtaining；Or
Adjust effective emission area of described ultrasonic transducer, with the size of focal spot determined by obtaining.
Further, the running parameter of the described ultrasonic transducer of described adjustment, with focal spot determined by obtaining
Size and location includes:
Adjust the focal length of described ultrasonic transducer and/or described surface of ultrasonic transducer to skin surface away from
From, with the position of focal spot determined by obtaining.
Further, the shape of described focal spot includes axial dimension and the lateral dimension of described focal spot, described tune
The running parameter of whole described ultrasonic transducer, includes with the size and location of focal spot determined by obtaining:
Adjust the operation wavelength of described ultrasonic transducer and focal length and the ratio in aperture, with burnt determined by obtaining
The axial dimension of speckle and lateral dimension.
The embodiment of the present invention additionally provides a kind of ultrasonic fat reducing treatment head, including a ultrasonic transducer, described super
Sound fat reducing treatment head also includes:
For obtaining the measurement module of the treatment situation in region to be treated；
For determining the determination of the size and location of the focal spot of ultrasonic transducer according to acquired treatment situation
Module；
For adjusting the running parameter of described ultrasonic transducer, with the size of focal spot, position determined by obtaining
Control module with shape.
Further, the treatment situation in described region to be treated includes the fat deposit thickness in region to be treated, institute
State measurement module to include:
For the transmitting submodule to described field emission one ultrasound wave burst pulse to be treated；
For obtaining the first ultrasonic echo and the fatty and muscle that coupling liquid reflects with the interface layer of epidermis
Interface layer reflection the second ultrasonic echo between the measurement submodule of time interval；
Divided by 2 after the bulk sound velocity that described time interval is multiplied by fatty tissue, obtain described to be treated
The acquisition submodule of the fat deposit thickness in region.
Further, described control module includes:
The ratio of focal length and aperture for adjusting described ultrasonic transducer, big with focal spot determined by obtaining
Little；Or
Adjust effective emission area of described ultrasonic transducer, with the first of the size of focal spot determined by obtaining
Control submodule.
Further, described control module includes:
For adjusting the focal length of described ultrasonic transducer and/or described surface of ultrasonic transducer to skin surface
Distance, with the second control submodule of the position of focal spot determined by obtaining.
Further, the shape of described focal spot includes axial dimension and the lateral dimension of described focal spot, described control
Molding block includes:
For adjusting the operation wavelength of described ultrasonic transducer and focal length and the ratio in aperture, to obtain being determined
The axial dimension of focal spot and the 3rd control submodule of lateral dimension.
Embodiments of the invention have the advantages that
In such scheme, first obtain the treatment situation in region to be treated, true according to acquired treatment situation
Determine the size of the focal spot of ultrasonic transducer, position and shape, adjust the running parameter of ultrasonic transducer afterwards,
With the size of focal spot, position and shape determined by obtaining.The present invention can be according to the treatment in region to be treated
Situation, adjusts the position of focal spot, size and shape in real time, thus improves the safety of ultrasonic therapeutic with effective
Property.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the method for work of the ultrasonic fat reducing treatment head of the embodiment of the present invention；
Fig. 2 is the structural representation of the ultrasonic fat reducing treatment head of the embodiment of the present invention.
Detailed description of the invention
For making embodiments of the invention solve the technical problem that, technical scheme and advantage clearer, below
To be described in detail in conjunction with the drawings and the specific embodiments.
Embodiments of the invention in prior art in single patient's body part fat layer thickness variation
Time bigger, need frequently to change the size of focal spot, position and shape, and frequently replace treatment head and can be delayed and control
The problem for the treatment of time, it is provided that a kind of ultrasonic fat reducing treatment head and method of work thereof, it is possible to adjust focal spot in real time
Position, size and shape, improve safety and the effectiveness of ultrasonic therapeutic.
Fig. 1 is the schematic flow sheet of the method for work of the ultrasonic fat reducing treatment head of the embodiment of the present invention, such as Fig. 1
Shown in, the present embodiment includes:
Step 101: obtain the treatment situation in region to be treated；
Step 102: according to acquired treatment situation determine the size of focal spot of ultrasonic transducer, position and
Shape；
Step 103: adjust the running parameter of ultrasonic transducer, with the size of focal spot, position determined by obtaining
Put and shape.
The method of work of the ultrasonic fat reducing treatment head of the present invention, first obtains the treatment situation in region to be treated,
Determine the size of focal spot, position and the shape of ultrasonic transducer according to acquired treatment situation, adjust afterwards
The running parameter of ultrasonic transducer, with the size of focal spot, position and shape determined by obtaining.Energy of the present invention
Enough treatment situations according to region to be treated, adjust the position of focal spot, size and shape in real time, thus improve
The safety of ultrasonic therapeutic and effectiveness.
Fig. 2 is the structural representation of the ultrasonic fat reducing treatment head of the embodiment of the present invention, and the ultrasonic of the present embodiment subtracts
Fat treatment head, including a ultrasonic transducer, as in figure 2 it is shown, this ultrasonic fat reducing treatment head also includes:
For obtaining the measurement module 20 of the treatment situation in region to be treated；
For determining the determination of the size and location of the focal spot of ultrasonic transducer according to acquired treatment situation
Module 21；
For adjusting the running parameter of ultrasonic transducer, with the size of focal spot, position and shape determined by obtaining
The control module 22 of shape.
Further, the treatment situation in region to be treated includes the fat deposit thickness in region to be treated, measures mould
Block 20 includes:
For the transmitting submodule to field emission one ultrasound wave burst pulse to be treated；
For obtaining the first ultrasonic echo and the fatty and muscle that coupling liquid reflects with the interface layer of epidermis
Interface layer reflection the second ultrasonic echo between the measurement submodule of time interval；
Divided by 2 after the bulk sound velocity that time interval is multiplied by fatty tissue, obtain the fat in region to be treated
The acquisition submodule of fat layer thickness.
Further, control module 22 includes:
The ratio of focal length and aperture for adjusting ultrasonic transducer, with the size of focal spot determined by obtaining；Or
Adjust effective emission area of ultrasonic transducer, with the first control of the size of focal spot determined by obtaining
Submodule.
Further, control module 22 includes:
For adjusting the focal length of ultrasonic transducer and/or the surface of ultrasonic transducer distance to skin surface, with
Second control submodule of the position of focal spot determined by obtaining.
Further, the shape of focal spot includes axial dimension and the lateral dimension of focal spot, and control module 22 is wrapped
Include:
For adjusting the operation wavelength of ultrasonic transducer and focal length and the ratio in aperture, with burnt determined by obtaining
The axial dimension of speckle and the 3rd control submodule of lateral dimension.
The ultrasonic fat reducing treatment head of the present invention, when carrying out ultrasonic fat reducing treatment, first obtains region to be treated
Treatment situation, determine the size of focal spot, position and the shape of ultrasonic transducer according to acquired treatment situation
Shape, adjusts the running parameter of ultrasonic transducer afterwards, with the size of focal spot, position and shape determined by obtaining
Shape.The present invention can adjust the position of focal spot, size and shape in real time according to the treatment situation in region to be treated
Shape, thus improve safety and the effectiveness of ultrasonic therapeutic.
In prior art, spherical surface focusing transducer is conventional high-intensity focusing ultrasonic transducer, is also to focus on
One of several ultrasonic transducer structures that efficiency is optimal.The most just as a example by spherical surface focusing transducer, specifically
The method of work of bright ultrasonic fat reducing treatment head.
Step S1: obtain the treatment situation in region to be treated；
Before carrying out ultrasonic fat reducing treatment, first have to obtain the treatment situation in region to be treated, with according to controlling
Treatment situation determines the size of required focal spot, position and shape.Acquired treatment situation includes to be treated
Fat deposit thickness at region and region to be treated are positioned at the depth of fat deposit, specifically, obtain to be treated
Fat deposit thickness at region can step realize by the following method: to field emission one ultrasound wave to be treated
Burst pulse；Obtain the first ultrasonic echo of the interface layer reflection of coupling liquid and epidermis and fat and muscle
Time interval between second ultrasonic echo of interface layer reflection；Time interval is multiplied by the flat of fatty tissue
All divided by 2 after the velocity of sound, obtain the fat deposit thickness in region to be treated.But realize obtaining at region to be treated
Fat deposit thickness is not limited to said method, it is also possible to by skinfold kind of calliper, CT (computed
Tomography, CT)/MRI (Magnetic Resonance Imaging,
Nuclear magnetic resonance) mode such as radiographic measurement realizes；
Step S2: determine the focal spot of required ultrasonic transducer according to the treatment situation in region to be treated
Size, position and shape；
The fat deposit thickness obtained at region to be treated and region to be treated be positioned at fat deposit the depth it
After, it is possible to determine and treat the located subcutaneously degree of depth of focus, the size and shape of focal spot, and select suitably
The axial length of-6dB focusing spot and lateral length.Illustrate: for concludeing a contract or treaty the fat of 20 millimeters
Layer thickness, it is desirable to limit spherical surface focusing transducers focus sound field-6dB focal spot and be less than along the axial major diameter of sound
20 millimeters and suitably leave the safe distance of far and near field (such as-6dB major diameter is 10 millimeters, ultrasonic transduction
Device focus is positioned at fat deposit centre position).Relatively thin at fat deposit or single ultrasonic irradiation focal position is positioned at
The shallow table of fat deposit or during close to muscle and connective tissue interface, can use little focal spot, to ensure treatment safety
Property.When thicker at fat deposit and single ultrasonic irradiation focal position is positioned at fat deposit intermediate depth position, can
To use Large focal spot, quick to realize single large volume on the premise of ensureing focus far field and near field safety
Treatment；
Step S3: adjust the parameters of ultrasonic transducer, with the size of focal spot, position determined by obtaining
Put and shape.
Specifically, can by change ultrasonic transducer and skin distance, change ultrasonic transducer focal length,
The focusing convergence angle of change ultrasonic transducer, the change ultrasonic transducer type of focusing, change ultrasonic transducer are sent out
The methods such as the frequency penetrating sound wave, change the subcutaneous focal depth of ultrasonic transducer and/or the size of focal spot region,
Shape.
Separately below the process that realizes of the above-mentioned method mentioned is illustrated:
(1) ultrasonic fat reducing treatment head adjusts the focal length of ultrasonic transducer, aperture and operation wavelength to obtain
The size and shape of the focal spot determined
Scheme one: by changing the size focusing on the focal spot converging angle change ultrasonic transducer of ultrasonic transducer
And focusing gain.
It is relevant that the size of spherical surface focusing transducer focal spot converges angle with it, and the convergence angle of spherical surface focusing transducer is more
Greatly, Voice segment is more concentrated, and focal spot is the least, and focusing gain is the biggest, is suitable for single irradiation small size fine
Treatment；Otherwise, the convergence angle of spherical surface focusing transducer is the least, then Voice segment more dispersion, and focal spot is the biggest,
Focusing gain is the least, is suitable for single irradiation large volume fast treating.Therefore, it can by controlling spherical surface focusing
The angle of converging of transducer controls size and the focusing gain of focusing spot with realization.
Can control to converge angle by the effective emission area changing spherical surface focusing transducer.Because changing
Effective emission area of spherical surface focusing transducer can change the equivalent transmitting aperture of spherical surface focusing transducer, because of
And it is equal to the ratio changing focal length with aperture, and for spherical surface focusing transducer, focal length is (super with aperture half value
Sonic transducer radius) ratio be the sine function at half convergence angle, therefore, change spherical surface focusing transducer
Equivalent transmitting aperture, can to converge angle carry out trickle adjustment.
Scheme two: changed the size of the focal spot of ultrasonic transducer by the focal length and aperture changing ultrasonic transducer
And focusing gain.
The focal length of ultrasonic transducer can be fixed, adjust the aperture of ultrasonic transducer；Or change ultrasonic transducer
Focal length, the aperture of fixing ultrasonic transducer；Or adjust the focal length of ultrasonic transducer and aperture obtains not simultaneously
Same focal length and aperture ratio, change size and the focusing gain of focal spot.
The approach in the aperture changing ultrasonic transducer can comprise multi-electrode point annular region excitation ultrasound transducing
Device piezoelectric, uses sound-absorbing material to stop ultrasonic transducer area, or uses many ultrasonic transducers to tie
Structure changes effective transmitting aperture, and other similar schemes by switching the most some ultrasonic transducers.
Scheme three: by changing the operating frequency of ultrasonic transducer, changes size and the focusing of focal spot region
Gain.
Specific embodiments: for spherical surface focusing transducer, the axial dimension of focal spot is with its operation wavelength (i.e.
The wavelength that operating frequency is corresponding) square relevant with its focal length and the ratio in aperture, the lateral dimension of focal spot and its
Operation wavelength is relevant with the ratio in aperture with focal length.The ratio in wavelength or focal length and aperture is the biggest, spherical surface focusing transducing
Axial dimension and the lateral dimension of device are the biggest.Therefore, it can the work by changing spherical surface focusing transducer
Frequency is to control the size and shape of focal spot.
Change ultrasonic transducer operating frequency can be suitable with drive circuit power amplifier to ultrasonic transduction
The impedance matching of device realizes.For the ultrasonic transducer under broadband work pattern, can be for fat deposit thickness
High frequency that real-time selection is suitable or the size of low frequencies signal change focal spot region and focusing gain.
The axial dimension of focal spot and the adjustment of lateral dimension can also be by changing the focusing side of ultrasonic transducer
Formula (sphere self-focusing, cylinder self-focusing, axially bend and stretch focusing, transverse compression or stretch focus on) realize.
Further, it is also possible to use the mode of sound lens focusing, the effective area for treatment needed is manufactured；Such as,
In order to expand the focal spot overlay area of single therapy, cylinder acoustic lens is used to coordinate rectangle plane potsherd to manufacture
The focal zone of planar can make up the limitation that sphere self-focusing focus is too small；Or use multifocal sound saturating
Mirror realizes single emission and obtains multiple focus simultaneously.The most such as, the lens of different curvature radius are changed, not
Change to focus in the case of changing ultrasonic transducer piezoelectric element and converge angle, it is thus achieved that different focus characteristics.
(2) ultrasonic fat reducing treatment head by change ultrasonic transducer focal length, ultrasonic transducer and skin away from
From the position with focal spot determined by obtaining
The therapeutic targets position in region to be treated is sometimes referred as focal position and the focal spot district thereof of ultrasonic transducer
Territory.The focal length of ultrasonic transducer refers to that ultrasonic transducer piezoelectric material surface is to ultrasonic transducer focused spot
Distance, in typical subcutaneous layer of fat ultrasonic fat reducing treatment, the distance of surface of ultrasonic transducer distance skin
The degree of depth sum located subcutaneously with ultrasonic transducer focus is equal to the focal length of ultrasonic transducer.
After determining the position that focal spot is located subcutaneously, can by adjust ultrasonic transducer distance epidermis away from
From or change the mode of focal length of ultrasonic transducer and change the therapeutic targets position degree of depth in fat deposit.
Scheme one: by changing deep in fat deposit of transducer and the distance of skin change therapeutic targets position
Degree
Specific embodiments one: suitable elastomeric material can be used to make ultrasonic transducer front end coupling liquid
Capsule, this coupling liquid capsule couples fluid path and liquid storage container UNICOM with ultrasonic transducer.Keep ultrasonic transducer water route
The seal of system (coupling liquid capsule, fluid path, liquid storage container), utilizes hydraulic principle, uses suitable liquid
Pressure type of drive (method such as such as charge pump, similar needle cylinder injection suction) is defeated to fluid path in liquid storage container
Go out liquid and enter ultrasonic transducer front end coupling liquid capsule, reach to increase therapeutic targets portion by increasing liquid capsule volume
The purpose of the position degree of depth in fat deposit；Otherwise, liquid capsule can be reduced by the coupling liquid in aspirated liquid capsule
Volume, reduces the therapeutic targets position degree of depth in fat deposit.Owing to the surface tension of liquid is respectively to uniformly,
Elastic film material can keep smooth and smooth in suitable elastic range, it is simple to through ultrasonic energy.
The structure of ultrasonic transducer front end coupling liquid capsule can be isotropic elastic construction (such as balloon harmomegathus
Mode), or (such as liquid capsule side uses rigid material to limit it the elastic construction that bounds limits
Harmomegathus), or (such as telescope is adjusted to have bounds to limit liquid capsule side applied mechanical PF capsule front end face
Burnt mode), or use movable hard supporting construction (such as umbrella opening-closing structure).Due to liquid-way system
Seal, the change of distance can calculate by measuring the change of liquid capacity in liquid storage container, and accordingly
Information feeds back to hydraulic-driven and keeps or adjust this distance.Electromechanical control method is used can accurately to control liquid capsule
The change of volume, and be suitable for adjusting the most in real time.The increase and decrease of liquid CF body also allows for ultrasonic
Transducer piezoelectric dispels the heat.
Specific embodiments two: use mechanical system, the most manually or electrically mechanism's upper and lower push-and-pull ultrasonic transduction
Device piezoelectric and encapsulation base station thereof, adjust ultrasonic transducer piezoelectric at the Level Change within treatment head
The therapeutic targets position degree of depth in fat deposit, the method is also suitable in treatment adjusting distance in real time.
Specific embodiments three: combine employing above two specific embodiments and adjust distance.
Specific embodiments four: using the solid-state of differing heights to lead sound material, such as acoustic impedance is close to people
The hydrogel of soma is as couplant, it is also possible to change surface of ultrasonic transducer to skin surface away from
From.
Scheme two: change the therapeutic targets position degree of depth in fat deposit by changing ultrasonic transducer focal length.
Specific embodiments one: the sphere curvature radius changing ultrasonic transducer piezoelectric is the most directly to change
Become the way of ultrasonic transducer focal length.Based on the thinking changing sphere curvature radius, it is also possible to use split-type
Ultrasonic transducer structures, change focal length by the folding angle of multiple limbs；Or use ring-type phased
Ultrasonic transducer method changes focal length；Or use the method for other similar focusing surface abnormity to change focal length.
Above-mentioned ultrasonic fat reducing treatment head first obtains the treatment situation in region to be treated, rear preferably ultrasonic transducer
The process of parameter can be carried out by sequence crossover during ultrasonic fat reducing treatment, or first measures and labelling before treatment
Fat thickness with the change of position, ginseng according to the preferred ultrasonic transducer of thickness information in treatment subsequently
Number.
Above ultrasonic fat reducing treatment head adjusts the size of focal spot, position and the method for shape and is not limited to the use of ball
Face focused transducer, it is also possible to be applicable to broad sense sphere self-focusing, generalized cylindrical focus on, multi-clove type focus on,
Plane Piezoelectric Materials sheet coordinates acoustic lens list focus or multiple-point focusing, polycyclic focusing, phased array list focus or many
The structures such as focal point.
In addition to the static treatment scheme of above-mentioned ultrasonic fat reducing treatment head, the ultrasonic fat reducing treatment of the embodiment of the present invention
Head can also carry out Active treatment, such as by the method continuous scanning treatment district of Mechanical Moving ultrasonic transducer
Territory, ultrasonic transducer is continuously with specific pulse recurrence frequency emitted energy simultaneously, in order to more flexibly rapidly
Ground changes focal spot position, focal spot size.The program may cause several tissue effect, due to closely
Produced bubble cloud effect between adjacent transmitting focus, on next-door neighbour, a focal position can be by last time
Launch remaining bubble cloud, excite the acoustic cavitation of current location with relatively low ultrasonic energy, or produce due to sound
The tissue heat effect of the enhancing that cavitation causes, or have generation tissue heat effect and non-thermomechanical effect simultaneously concurrently.
Being equipped with monitoring means the most in real time, the Therapeutic mode of transmitting continuously of next-door neighbour can utilize less energy to maintain
Sound cavitation effect in whole therapeutic process, accelerates treatment speed, shortens treatment time, reaches more uniform
Volume therapeutic effect.
Specific implementation can be to utilize mechanical displacement control system to manufacture between patient skin and treatment head
Relative slide displacement, it is ensured that treatment head movement locus (focus motion track) cover whole area for treatment.
Meanwhile, the ultrasonic transducer in treatment head, according to treatment head translational speed and direction, uses preferred acoustic emission to join
Number (ultrasonic frequency, pulse amplitude, pulse width and pulse recurrence frequency) is launched ultrasound wave and is treated.
Use ultrasound wave or infrared ray sensor to the acoustic cavitation in therapeutic process and subcutaneous tissue temperature or real-time
Ultrasonic image feedback is monitored in real time, adjusts the parameter of acoustic emission next time according to monitoring result.Next
Treatment position suitably can be adjusted according to the cavitation intensity of a upper treatment position, scope or variations in temperature size
Whole spacing distance (treatment head translational speed of accelerating or slow down), improves the assurance of effectively treatment.Other realize
Mode can be a treatment machinery (miniature horse that the built-in little scope of control ultrasonic transducer moves or swings
Reach the modes such as transmission, hydraulic pressure, pneumatic, spring) realize treating head and the compound motion of ultrasonic transducer,
Or use phased array mode to replace the built-in travel mechanism of ultrasonic transducer to realize focus electronic deflection；Its purpose exists
In realizing focus move mode flexibly.Continuous moving adjusts focus shift speed and preferred emission parameter
Scheme can optimize Therapeutic mode, and comprehensive selection should be master with mechanical effect or thermal effect or combined effect is carried out
Fat destruction is treated.
The above is the preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, on the premise of without departing from principle of the present invention, it is also possible to make some improvements and modifications,
These improvements and modifications also should be regarded as protection scope of the present invention.
Claims (4)
1. a ultrasonic fat reducing treatment head, including a ultrasonic transducer, it is characterised in that described ultrasonic subtract
Fat treatment head also includes:
For obtaining the measurement module of the treatment situation in region to be treated；
For determining the determination of the size and location of the focal spot of ultrasonic transducer according to acquired treatment situation
Module；
For adjusting the running parameter of described ultrasonic transducer, with the size of focal spot, position determined by obtaining
Control module with shape；
The treatment situation in described region to be treated includes the fat deposit thickness in region to be treated, described measurement module
Including:
For the transmitting submodule to described field emission one ultrasound wave burst pulse to be treated；
For obtaining the first ultrasonic echo and the fatty and muscle that coupling liquid reflects with the interface layer of epidermis
Interface layer reflection the second ultrasonic echo between the measurement submodule of time interval；
Divided by 2 after the bulk sound velocity that described time interval is multiplied by fatty tissue, obtain described to be treated
The acquisition submodule of the fat deposit thickness in region.
Ultrasonic fat reducing treatment head the most according to claim 1, it is characterised in that described control module
Including:
The ratio of focal length and aperture for adjusting described ultrasonic transducer, big with focal spot determined by obtaining
Little；Or
Adjust effective emission area of described ultrasonic transducer, with the first of the size of focal spot determined by obtaining
Control submodule.
Ultrasonic fat reducing treatment head the most according to claim 1, it is characterised in that described control module
Including:
For adjusting the focal length of described ultrasonic transducer and/or described surface of ultrasonic transducer to skin surface
Distance, with the second control submodule of the position of focal spot determined by obtaining.
Ultrasonic fat reducing treatment head the most according to claim 1, it is characterised in that the shape of described focal spot
Shape includes axial dimension and the lateral dimension of described focal spot, and described control module includes:
For adjusting the operation wavelength of described ultrasonic transducer and focal length and the ratio in aperture, to obtain being determined
The axial dimension of focal spot and the 3rd control submodule of lateral dimension.
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| US11491351B2 (en) | 2017-03-01 | 2022-11-08 | Toosonix A/S | Acoustic device for skin treatment and methods of using the same |
| CN107090429B (en) * | 2017-06-08 | 2020-09-01 | 上海交通大学医学院附属第九人民医院 | Treatment method of small-particle active adipose tissues |
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| CN110624183A (en) * | 2019-10-17 | 2019-12-31 | 迟蕙 | Bimodal supersound subtracts moulding machine of fat |
| CN113117264B (en) * | 2019-12-30 | 2023-03-10 | 重庆融海超声医学工程研究中心有限公司 | Focused ultrasound device and focused ultrasound transducer focusing method |
| CN114984469A (en) * | 2022-06-06 | 2022-09-02 | 深圳半岛医疗有限公司 | Control method, controller, system and therapeutic apparatus of ultrasonic therapy system |
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| CN1484520A (en) * | 2001-01-03 | 2004-03-24 | ��̬ͼ������˾ | Non-invasive ultrasonic body contouring |
| CN202236919U (en) * | 2011-10-09 | 2012-05-30 | 北京汇福康医疗技术有限公司 | Ultrasonic fat reducing treatment head |
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