CN109864762A - A kind of human sebaceous's thickness measurement equipment of pressure control ultrasonic wave - Google Patents
A kind of human sebaceous's thickness measurement equipment of pressure control ultrasonic wave Download PDFInfo
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- CN109864762A CN109864762A CN201910177144.7A CN201910177144A CN109864762A CN 109864762 A CN109864762 A CN 109864762A CN 201910177144 A CN201910177144 A CN 201910177144A CN 109864762 A CN109864762 A CN 109864762A
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Abstract
A kind of human sebaceous's thickness measurement equipment of pressure control ultrasonic wave, belongs to physiology signal fields of measurement.Pressure sensor and ultrasonic probe act on human skin surface simultaneously, pressure sensor measurement ultrasonic probe is applied to the pressure that human body is tested position, it is sent in the analog-digital converter of single-chip microcontroller by operational amplifier circuit, single-chip microcontroller judges that pressure reaches threshold value, ultrasonic wave is issued by high pressure activation circuit activation ultrasonic probe, ultrasonic wave returns to echo signal after passing through human body subcutaneus adipose tissue, echo signal is amplified into single-chip microcontroller by amplifying circuit, single-chip microcontroller calculates the average time that ultrasonic wave is walked in human fatty tissue, by being multiplied to obtain the thickness of human body subcutaneous fat in the spread speed of human fatty tissue with ultrasonic wave, the human body subcutaneous fat thickness measured is shown on the display module.
Description
Technical field
The present invention relates to a kind of instruments using ultrasonic measurement human body subcutaneous fat thickness, belong to physiology signal survey
Amount field.
Background technique
Obesity is the common of the chronic diseases such as cardiovascular disease, type-II diabetes, hypertension, hyperlipemia, malignant tumour
Risk factor.The fat continuous accumulation for taking the form of human body body fat, wherein subcutaneous fat accounts for the 40-of the total fat of body
60%, thus detect subcutaneous fat thickness and can reflect the Fat Distribution of body parts.
It clinically detects, Magnetic resonance imaging (MRI), computed tomography (CT), Dual energy X ray absorptiometry
(DEXA), ultrasonic imaging technique can more accurately measure adipose tissue thickness, but equipment volume is larger, expensive.Behaviour
It needs as personnel by professional training.CT and DEXA method is also by the harm of ray.
Skin wrinkle meter is a kind of cheap, noninvasively estimating subcutaneous fat thickness method.But it is difficult to when being measured with Skin wrinkle meter really
The interface of fixed fat and muscle, and have feeling of pain.Bio-electrical impedance measuring method is influenced more apparent by internal water content.Closely
Infrared light mensuration is simple, easy to operate, but since near infrared light penetration capacity is limited, for its measurement of thicker subcutaneous fat
Accuracy is to be improved.
Therefore, it attempts to measure human body subcutaneous fat thickness using portable ultrasonic device.Existing technical literature patent is a kind of
Using the instrument of ultrasonic measurement human body subcutaneous fat thickness, pulse signal can be generated by single-chip microcontroller and single pulse excitation is super
Sonic probe work and timing stop timing by capturing echo signal triggering and interrupting, and calculate human body subcutaneous fat thickness.But
It is that, when operating instrument, ultrasonic probe directly affects measurement result to the pressure at tested position and with the angle at tested position
Accuracy and reliability, have strict requirements to the measurement gimmick of operator.
Summary of the invention
In order to overcome ultrasonic probe to the pressure at tested position and with the angle at tested position to measurement accuracy and reliable
Property influence, the present invention provides human sebaceous's thickness measurement equipment of pressure control ultrasonic wave, and apparatus measures accuracy is high, can be with
Convenient, fast, non-invasive measurement body any part subcutaneous fat thickness.
A kind of human sebaceous's thickness measurement equipment of pressure control ultrasonic wave, which is characterized in that including pressure sensor, ultrasound
Probe and host, host inside include operational amplifier circuit, single-chip microcontroller, high pressure activation circuit, amplifying circuit；Pressure sensor, ultrasound
Probe is located at outside host, and pressure sensor is connect with operational amplifier circuit, and operational amplifier circuit is connect with the analog-digital converter in single-chip microcontroller,
Single-chip microcontroller is also connect with high pressure activation circuit, amplifying circuit respectively simultaneously, while high pressure activation circuit, amplifying circuit connect and surpass
Sonic probe connection；
Pressure sensor and ultrasonic probe act on the same detected part of human skin surface, pressure sensor measurement simultaneously
Ultrasonic probe is applied to the pressure that human body is tested position, is sent in the analog-digital converter of single-chip microcontroller by operational amplifier circuit, single-chip microcontroller
Judge to pass through high pressure activation circuit activation ultrasonic probe sending ultrasonic wave after pressure reaches threshold value, ultrasonic wave passes through body fat group
Echo signal is returned to after knitting, echo signal returns to single-chip microcontroller after amplifying by amplifying circuit, single-chip microcontroller calculates ultrasonic wave in human body
The average time of adipose tissue walking, the subcutaneous rouge of human body is obtained by being multiplied with ultrasonic wave in the spread speed of human fatty tissue
The thickness of fat.
Pressure sensor, ultrasonic probe are cylindrical structure, and pressure sensor, ultrasonic probe are axial parallel and hang down simultaneously
It directly is fixed on host outer surface, and the top of pressure sensor cylindrical body and ultrasonic probe cylindrical body is contour i.e. coplanar.
Pressure sensor, ultrasonic probe are independent, and distance of center circle Dr between the two, preferably 60mm≤Dr≤40mm.
Pressure sensor and ultrasonic probe act on the same detected part of human skin surface simultaneously, because of pressure sensor
It is all cylindrical body with ultrasonic probe and mutually indepedent, so ultrasonic probe and the tested surface of human contact are perpendicular in measurement.
Single-chip microcontroller sets the pressure threshold of measurement, and when pressure is in threshold range, excitation ultrasonic probe issues ultrasonic wave, calculates super
The average time that sound wave is walked in subcutis calculates human body subcutaneous fat thickness and continues to show in display module, when
Pressure does not measure and is shown in the data in threshold range outside threshold range, and when pressure is 0, display module is shown as 0.
The setting condition of threshold value can be set as needed, and generally be obtained by experiment, that is, is applied to human body and is tested position
Pressure does not influence the position subcutaneus adipose tissue deformation, and then obtains being converted into corresponding analog-digital converter under the pressure limit
Signal.
The beneficial effect of the invention patent is that any operator can accurately measure the thickness of human body subcutaneous fat.
Detailed description of the invention
Fig. 1 is composition block diagram of the present invention
Fig. 2 is software flow pattern of the invention
Fig. 3 is Design Plans of the invention, and 1 is ultrasonic probe, and 2 be pressure sensor, and 3 be host.
Fig. 4 is instrumentation plan of the invention.
Specific embodiment
Below with reference to embodiment, the present invention will be further described, but the present invention is not limited to following embodiments.
Embodiment 1
In Fig. 1, instrument includes host, pressure sensor and ultrasonic probe.Host includes operational amplifier circuit, single-chip microcontroller, height
Press exciting circuit, amplifying circuit, display module and power module.The connection of the operational amplifier circuit of pressure sensor and host, ultrasound are visited
Head is connect with the high pressure activation circuit and amplifying circuit of host.Pressure sensor and ultrasonic probe act on human skin table simultaneously
The power for being applied to the tested position of human body is converted to electric signal by face, pressure sensor, and electric signal passes through operational amplifier circuit and amplifies entrance
In the analog-digital converter of single-chip microcontroller, single-chip microcontroller emits ultrasonic wave by high pressure activation circuit activation ultrasonic probe, and ultrasonic wave passes through
Echo signal is returned to after human body subcutaneus adipose tissue, echo signal enters single-chip microcontroller by amplifying circuit, and single-chip microcontroller calculates ultrasound
Wave calculates human body subcutaneous fat thickness by formula and shows in display module in the average time of the walking of human fatty tissue
Show, it is whole to be powered by power module.
As shown in Figure 2, when single-chip microcontroller judges pressure signal Urf=0, instrument, which empties, is shown as 0；Single-chip microcontroller judges pressure
Within the scope of condition threshold of the value in setting, i.e. when th1≤Urf≤th2 (i.e. the corresponding range of signal of pressure), instrument excitation is super
Sonic probe issues ultrasonic wave and calculates human body subcutaneous fat thickness:Wherein, D indicates subcutaneous fat depth
Degree, Δ TiIt indicates to return to the time required for echo signal after ultrasonic wave passes through human body subcutaneous fat, v indicates ultrasonic wave subcutaneous
The spread speed of fat, N≤4 are pendulous frequency, and measurement result is continuously display；Single-chip microcontroller judges that pressure value is in the item of setting
Outside part threshold range, the numerical value for the human body subcutaneous fat thickness that display instrument measures in threshold range.The setting item of threshold value
Part range th1 and th2 show that experimental standard, that is, pressure does not influence the deformation range of subcutaneus adipose tissue deformation or generation by testing
Very little.
An embodiment therein: v=1500m/s, th1=2000, th2=2200.
In the embodiment shown in fig. 3, the circle of ultrasonic probe (1) diameter D2=30mm, high H2≤10mm, working frequency 2MHz
Cylindricality ultrasonic Doppler transducer, pressure sensor (2) diameter D1=10mm, high H1≤10mm, range are 0~500N, and pressure passes
Sensor, ultrasonic probe are vertical with the approximately the same plane of host, and distance of center circle 60mm≤Dr of pressure sensor and ultrasonic probe≤
40mm, display module of the human body subcutaneous fat thickness on host (3) surface measured by instrument are shown.
An embodiment therein: H1=10mm, H1=10mm, Dr=40mm.
In the embodiment shown in fig. 4, pressure sensor and ultrasonic probe act on human skin surface simultaneously.
Claims (4)
1. a kind of human sebaceous's thickness measurement equipment of pressure control ultrasonic wave, which is characterized in that visited including pressure sensor, ultrasound
Head and host, host inside include operational amplifier circuit, single-chip microcontroller, high pressure activation circuit, amplifying circuit；Pressure sensor, ultrasound are visited
Head is located at outside host, and pressure sensor is connect with operational amplifier circuit, and operational amplifier circuit is connect with the analog-digital converter in single-chip microcontroller, together
When single-chip microcontroller also connect respectively with high pressure activation circuit, amplifying circuit, while high pressure activation circuit, amplifying circuit connection with ultrasound
Probe connection；
Pressure sensor and ultrasonic probe act on the same detected part of human skin surface, pressure sensor measurement ultrasound simultaneously
Probe is applied to the pressure that human body is tested position, is sent in the analog-digital converter of single-chip microcontroller by operational amplifier circuit, single-chip microcontroller judgement
Pressure passes through high pressure activation circuit activation ultrasonic probe sending ultrasonic wave after reaching threshold value, after ultrasonic wave passes through human fatty tissue
Echo signal is returned to, echo signal returns to single-chip microcontroller after amplifying by amplifying circuit, single-chip microcontroller calculates ultrasonic wave in body fat
The average time for organizing walking, human body subcutaneous fat is obtained by being multiplied with ultrasonic wave in the spread speed of human fatty tissue
Thickness.
2. a kind of human sebaceous's thickness measurement equipment of pressure control ultrasonic wave described in accordance with the claim 1, which is characterized in that pressure
Force snesor, ultrasonic probe are cylindrical structure, and pressure sensor, ultrasonic probe are axial parallel and are perpendicularly fixed at master simultaneously
Machine outer surface, and the top of pressure sensor cylindrical body and ultrasonic probe cylindrical body is contour i.e. coplanar.
3. a kind of human sebaceous's thickness measurement equipment of pressure control ultrasonic wave described in accordance with the claim 1, which is characterized in that pressure
Force snesor, ultrasonic probe are independent, and distance of center circle Dr between the two, preferably 60mm≤Dr≤40mm.
4. a kind of human sebaceous's thickness measurement equipment of pressure control ultrasonic wave described in accordance with the claim 1, which is characterized in that
In single-chip microcontroller, pressure threshold th1, th2 are set, sees formula (1)
th1≤URf≤th2 (1)
URfFor digital electric signal, it is characterized as pressure value, if meeting formula (1), calculates subcutaneous fat thickness according to formula (2)
Wherein, D indicates subcutaneous fat thickness, Δ TiIt indicates to return required for echo signal after ultrasonic wave passes through human body subcutaneous fat
Time, v indicates spread speed of the ultrasonic wave in subcutaneous fat, and N≤4 are pendulous frequency.
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| CN201910177144.7A CN109864762A (en) | 2019-03-08 | 2019-03-08 | A kind of human sebaceous's thickness measurement equipment of pressure control ultrasonic wave |
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| CN201910177144.7A CN109864762A (en) | 2019-03-08 | 2019-03-08 | A kind of human sebaceous's thickness measurement equipment of pressure control ultrasonic wave |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110313938A (en) * | 2019-08-01 | 2019-10-11 | 无锡海斯凯尔医学技术有限公司 | Subcutaneous tissue method for measuring thickness, device, equipment and storage medium |
| CN111110279A (en) * | 2020-01-13 | 2020-05-08 | 卓瑞姆生物技术有限公司 | Ultrasonic imaging equipment and imaging method thereof |
| CN112617901A (en) * | 2020-12-22 | 2021-04-09 | 居天智慧(深圳)有限公司 | Fat thickness automatic measuring ultrasonic instrument |
| CN115300795A (en) * | 2022-08-19 | 2022-11-08 | 广州青花瓷健康科技有限公司 | Biological intelligent physiotherapy instrument based on pulse current and physiotherapy method thereof |
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| CN110313938A (en) * | 2019-08-01 | 2019-10-11 | 无锡海斯凯尔医学技术有限公司 | Subcutaneous tissue method for measuring thickness, device, equipment and storage medium |
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| CN112617901A (en) * | 2020-12-22 | 2021-04-09 | 居天智慧(深圳)有限公司 | Fat thickness automatic measuring ultrasonic instrument |
| CN115300795A (en) * | 2022-08-19 | 2022-11-08 | 广州青花瓷健康科技有限公司 | Biological intelligent physiotherapy instrument based on pulse current and physiotherapy method thereof |
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Application publication date: 20190611 |