CN105640593B - It is a kind of for measuring the elasticity measuring device of viscoelastic medium - Google Patents
It is a kind of for measuring the elasticity measuring device of viscoelastic medium Download PDFInfo
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- CN105640593B CN105640593B CN201410659952.4A CN201410659952A CN105640593B CN 105640593 B CN105640593 B CN 105640593B CN 201410659952 A CN201410659952 A CN 201410659952A CN 105640593 B CN105640593 B CN 105640593B
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Abstract
The present invention provides a kind of for measuring the elasticity measuring device of viscoelastic medium, described device can be by pressure size come the starting of control device, described device includes at least one ultrasonic transducer, the certain spring of one coefficient of elasticity, one for detecting the position sensor of displacement, one for triggering the actuator of above-mentioned apparatus, it is characterized in that, it includes an electric actuator, for generating instantaneous low frequency pulse wave, one signal generator being connected with position sensor, for issuing enabling signal, one for triggering the switch of electric actuator.Compared with prior art, the starting by pressure size come control and measure device is had the advantages that using technical solution provided by the invention, it is ensured that measuring device works in most suitable pressure limit.
Description
Technical field
The present invention relates to a kind of for measuring the elasticity measuring device of viscoelastic medium.More specifically, being related to one kind can
By pressure size come the elasticity measuring device of the starting of control device.
Background technique
Medically in order to determine hepatitis treatment Best Times it needs to be determined that liver region degree of fibrosis, this fiber
Change may be alcohol, virus or it is other due to caused by caused by chronic hepatitis, and degree of fibrosis can lead to
The elasticity of measurement corresponding site is crossed to obtain.
One is had been proposed in the international patent application W0/2004/016176 proposed before by present applicant
Plant the device for measuring human or animal's organ elasticity comprising: at least one contact mechanism with ultrasonic transducer, at least
It one position sensor and is fixed to ultrasonic transducer and the controlled electric actuator of instantaneous low-frequency pulse can be generated.By electricity
The low-frequency pulse guidance shearing wave that dynamic actuator generates is propagated in tissue, and the speed of shearing wave is dependent on organ-tissue
Elasticity.Therefore the elasticity of tested organ-tissue can be calculated by the speed of measurement shearing wave to nondestructively diagnose organ
Lesion situation.It is used in particular for the detection and diagnosis of hepatopathy.
But the device of the earlier application may need special training and experience that could obtain in actual use
Good measurement numerical value, main reason is that needing to apply pressure appropriate when the device is acted on human body could be managed
The measurement numerical value thought, and purely manual operation it cannot be guaranteed that the stabilization of pressure applied in preset range, if device probe with
The pressure of patient's skin surface gently will lead to very much shearing wave transmission less than liver's just deep fades, and if device head and disease
Human organs pressure can allow patient relatively to feel bad very much again greatly, and therefore, it is desirable to propose that one kind can accurately control the measuring device institute
The mechanism of the pressure of application.
Summary of the invention
The present invention provides a kind of elasticity measuring device that can solve the above problem, described device can be applied by detection
Plus-pressure size carrys out the starting of control device, and described device includes the contact at least one ultrasonic transducer, for producing
Raw ultrasonic vibration；Electric actuator is connected to the ultrasonic transducer, for generating instantaneous low frequency pulse wave；Pressure inspection
Survey device, the pressure applied for detecting the contact to object to be measured；For triggering the starter of the electric actuator；
Signal generator issues enabling signal when pressure for detecting in the pressure-detecting device is in preset range, wherein working as institute
When stating signal generator sending enabling signal, the starter could trigger the electric actuator work.
Compared with prior art, it is had the advantages that using technical solution provided by the invention by detecting pressure size
Carry out the starting opportunity of control and measure device, it is ensured that measuring device works in most suitable pressure limit.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, of the invention other
Feature, objects and advantages will become more apparent upon.
Fig. 1 is the schematic diagram according to the test device of the embodiment of the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail.
Examples of the embodiments are shown in the accompanying drawings, and in which the same or similar labels are throughly indicated identical or classes
As element or element with the same or similar functions.The embodiments described below with reference to the accompanying drawings are exemplary, only
It is used to explain the present invention, and is not construed as limiting the claims.Following disclosure provide many different embodiments or
Example is used to realize different structure of the invention.In order to simplify disclosure of the invention, hereinafter to the component of specific examples and setting
It sets and is described.Certainly, they are merely examples, and is not intended to limit the present invention.In addition, the present invention can be in difference
Repeat reference numerals and/or letter in example.This repetition is for purposes of simplicity and clarity, itself not indicate to be discussed
Relationship between various embodiments and/or setting.In addition, the present invention provides various specific techniques and material example,
But those of ordinary skill in the art may be aware that the applicable property of other techniques and/or the use of other materials.
The present invention provides a kind of for measuring the elasticity measuring device of viscoelastic medium.In the following, will through the invention
Fig. 1 method for forming elasticity measuring device is specifically described in one embodiment.As shown in Figure 1, bullet provided by the present invention
Property measuring device includes:
Contact at least one ultrasonic transducer 1, for issuing ultrasonic wave.When measuring, the ultrasound
The contact of wave transducer 1 is in contact with viscoelastic medium (for example, human skin), and the contact of the ultrasonic transducer can be with
Along the longitudinal movement of the shell 7 of the elasticity measuring device, there is a spring 2 between shell 7 and contact, when manually
When applying pressure to human body through contact by shell 7, the spring 2 between shell 7 and contact is compressed.It is opposite by measurement contact
The pressure that contact is applied on human body can be calculated in the displacement of shell and the coefficient of elasticity of spring 2.
Preferably, the ultrasonic transducer is in contact with viscoelastic medium to be measured indirectly by a protection head, and
The ultrasonic transducer and its protection head have an extension shape, to increase the contact area with testing medium.Such as
Rectangular, elliptical or other similar shapes.
The contact of the ultrasonic transducer 1 is connected with electric actuator 4 along axis.The electric actuator in measurement
4 apply a low frequency impact response.The low frequency impact response is together with the ultrasonic wave that ultrasonic transducer generates to be measured viscous
Elastic fluid.
Correspondingly, elasticity measuring device of the invention further includes a ultrasonic acquisition component (not shown), due to ultrasound
The ultrasound that wave transducer generates can be reflected by the particle being distributed in viscoelastic medium to be measured, pass through ultrasonic acquisition component detection
The ultrasonic signal reflected can measure each section shearing wave effect caused by low frequency impact response in viscoelastic medium
Bottom offset, to measure the transmission speed of shearing wave.The elasticity of testing medium is calculated according to shearing wave transmission speed.
Elasticity measuring device of the invention further includes position sensor 3, is connected by a certain rigid media with spring, or
Person is directly to be connected with the spring other end, obtains the stroke of the spring by the displacement of detection spring end.And accordingly
The pressure that human body is born at this time is calculated, when this pressure value reaches a certain range, position sensor 3 is just transferred to signal hair
Raw 5 one enabling signals of device.
In an embodiment of the present invention, the pressure limit that trigger position sensor 3 issues enabling signal is 4-8N, this is root
The typical range of determination according to measured body type, for adiposis patient, selects 4-10N for example, selecting 1-8N for children.Choosing
It selects this pressure limit and is because if device head and patient's organ pressure gently will lead to very much wave transmission less than liver, and if device
Head is felt bad compared with patient's organ pressure can allow greatly very much patient again.And it can be comfortable in patient in this pressure limit
In the case where make shearing wave can be for transmission to liver.In other embodiments, those skilled in the art can be according to actually answering
This pressure limit is voluntarily adjusted with demand.
After the enabling signal for receiving the transmission of position sensor 3, signal generator 5 issues the ready letter of measurement
Number, measurement is executed for prompting user that can start the sending low-frequency pulse of electric actuator 4 by Operation switch 6.At this moment it uses
Family can manually start electric actuator 4 by lower switch 6.Otherwise, measurement ready signal is not issued in signal generator 5
When, electric actuator 4 will not be started by lower switch 6 and issue low-frequency pulse, this ensure that the accuracy and consistency of measurement.
The electric actuator 4 can also be automatic trigger, i.e., detects in position sensor 3 and apply suitable pressure
When, electric actuator 4 issues low-frequency pulse automatically and measures.
The measurement ready signal can be the sound by generations such as buzzer, laser diodes, light et al. and easily observe
The signal arrived.If being used to start switch 6 for enabling signal between position sensor 3, switch connects by the way of automatically controlling
Start electric actuator sending low-frequency pulse automatically after receiving this enabling signal.The measurement ready signal can be changing for color
Become, such as become green from red to indicate that measurement is ready.What the measurement ready signal can also be displayed on the screen, work as user
Check whether the pressure limit of application is suitable when watching the parameter of screen with can be convenient.
Although the present invention measures amount of spring compression by the compression of spring and position sensor to detect sonotrode effect
Pressure on measured medium, actually can also be using other pressure-detecting devices, such as piezoelectric transducer, varistor etc.
Component, for pressure to be converted directly into electric signal.
Elasticity measuring device provided by the present invention is by pressure size come the starting of control and measure device, it is ensured that surveys
Device work is measured in most suitable pressure limit.
Although being described in detail about example embodiment and its advantage, it should be understood that do not depart from spirit of the invention and
In the case where protection scope defined in the appended claims, various change, substitutions and modifications can be carried out to these embodiments.It is right
In other examples, those skilled in the art be should be readily appreciated that while keeping in the scope of the present invention, technique
The order of step can change.
In addition, application range of the invention is not limited to the technique, mechanism, system of specific embodiment described in specification
It makes, material composition, means, method and step.From the disclosure, will be easy as those skilled in the art
Ground understands, for current technique that is existing or will developing later, mechanism, manufacture, material composition, means, method or
Step, wherein they execute the function that the corresponding embodiment described with the present invention is substantially the same or the knot that acquisition is substantially the same
Fruit can apply them according to the present invention.Therefore, appended claims of the present invention are intended to these techniques, mechanism, system
It makes, material composition, means, method or step are included in its protection scope.
Claims (4)
1. a kind of for measuring the elasticity measuring device of viscoelastic medium, described device includes:
Contact at least one ultrasonic transducer (1), for generating ultrasonic wave；
Electric actuator (4), is connected to the ultrasonic transducer, for generating low frequency pulse wave；
Pressure-detecting device (2,3), including elastic force apparatus (2) and position sensor (3), for detecting the contact to be measured right
As the pressure of application, wherein the both ends of the ultrasonic transducer (1) respectively with viscoelastic medium and the elastic force apparatus (2)
It is in contact, and causes the stretching motion of elastic force apparatus by conducting the pressure being applied on object to be measured；The position sensing
Device (3) detects the stroke of the elastic force apparatus, and signal generator (5)-a starting is transferred to when reaching a certain range
Signal, the stroke of the elastic force apparatus are related to the pressure that the measuring device applies object to be measured；
For triggering the starter (6) of the electric actuator (4)；
The signal generator (5) issues starting letter when pressure for detecting in the pressure-detecting device is in preset range
Number, wherein the starter (6) could trigger the electric actuation when the signal generator issues measurement ready signal
(4) device works.
2. the apparatus according to claim 1, which is characterized in that when object to be measured is to the pressure size model of ultrasonic transducer
When enclosing for 4N-8N, the signal generator issues measurement ready signal.
3. the apparatus according to claim 1, which is characterized in that the electric actuator is connected with ultrasonic transducer.
4. the apparatus according to claim 1, which is characterized in that wherein further include a ultrasonic acquisition component, for adopting
Collect the ultrasonic signal by viscoelastic medium internal reflection.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410659952.4A CN105640593B (en) | 2014-11-18 | 2014-11-18 | It is a kind of for measuring the elasticity measuring device of viscoelastic medium |
| TW104137869A TWI562765B (en) | 2014-11-18 | 2015-11-17 | Elasticity measuring device for measuring a viscoelastic medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410659952.4A CN105640593B (en) | 2014-11-18 | 2014-11-18 | It is a kind of for measuring the elasticity measuring device of viscoelastic medium |
Publications (2)
| Publication Number | Publication Date |
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| CN105640593A CN105640593A (en) | 2016-06-08 |
| CN105640593B true CN105640593B (en) | 2019-05-28 |
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| CN201410659952.4A Active CN105640593B (en) | 2014-11-18 | 2014-11-18 | It is a kind of for measuring the elasticity measuring device of viscoelastic medium |
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| TW (1) | TWI562765B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102235743B1 (en) | 2016-08-04 | 2021-04-01 | 우시 히스키 메디칼 테크놀로지스 컴퍼니., 리미티드. | Ultrasonic device and mechanical vibration generating device |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106344070B (en) * | 2016-11-03 | 2023-09-22 | 乐普（北京）医疗器械股份有限公司 | Probe and detection device |
| EP3381374B1 (en) | 2017-03-27 | 2020-09-02 | Echosens | Device and method for measuring the viscoelastic properties of a viscoelastic medium |
| GB2568946A (en) * | 2017-12-01 | 2019-06-05 | Hydramotion Ltd | Fluid property measurement by reflection of vibrational waves |
| CN108918288A (en) * | 2018-07-23 | 2018-11-30 | 镇江立达纤维工业有限责任公司 | A kind of panel stiffness detection device |
| CN109316207B (en) * | 2018-10-15 | 2023-08-11 | 聚融医疗科技(杭州)有限公司 | Mammary gland ultrasonic scanning system and method |
| CN109875608B (en) * | 2019-01-30 | 2020-10-27 | 清华大学 | Elastography method |
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| CN101699280A (en) * | 2009-10-15 | 2010-04-28 | 北京索瑞特医学技术有限公司 | Method and device for ultrasonic and nondestructive detection ofelasticity of viscoelastic medium |
| CN203458415U (en) * | 2013-09-17 | 2014-03-05 | 苏州边枫电子科技有限公司 | Intelligent wireless self-starting pressure-sensing ultrasonic detection system |
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| US6511427B1 (en) * | 2000-03-10 | 2003-01-28 | Acuson Corporation | System and method for assessing body-tissue properties using a medical ultrasound transducer probe with a body-tissue parameter measurement mechanism |
| FR2843290B1 (en) * | 2002-08-08 | 2005-06-24 | Echosens | DEVICE AND METHOD FOR MEASURING THE ELASTICITY OF A HUMAN OR ANIMAL ORGAN |
| FR2939512B1 (en) * | 2008-12-04 | 2012-07-27 | Echosens | DEVICE AND METHOD FOR ELASTOGRAPHY |
| US9610063B2 (en) * | 2010-03-26 | 2017-04-04 | The Johns Hopkins University | Methods and apparatus for ultrasound strain imaging |
| CN101869485B (en) * | 2010-06-23 | 2012-07-04 | 深圳大学 | Ultrasonic imaging method and device |
| JP6164641B2 (en) * | 2012-07-20 | 2017-07-19 | 株式会社タニタ | Viscoelasticity measuring device |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699280A (en) * | 2009-10-15 | 2010-04-28 | 北京索瑞特医学技术有限公司 | Method and device for ultrasonic and nondestructive detection ofelasticity of viscoelastic medium |
| CN203458415U (en) * | 2013-09-17 | 2014-03-05 | 苏州边枫电子科技有限公司 | Intelligent wireless self-starting pressure-sensing ultrasonic detection system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102235743B1 (en) | 2016-08-04 | 2021-04-01 | 우시 히스키 메디칼 테크놀로지스 컴퍼니., 리미티드. | Ultrasonic device and mechanical vibration generating device |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI562765B (en) | 2016-12-21 |
| TW201618721A (en) | 2016-06-01 |
| CN105640593A (en) | 2016-06-08 |
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Effective date of registration: 20191219 Address after: A405-1, Nanshan medical equipment Industrial Park, 1019 Nanhai Avenue, Shekou, Nanshan District, Shenzhen, Guangdong Province Patentee after: Shenzhen echo Medical Equipment Co., Ltd Address before: Ba Li Patentee before: Echosens SA |
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