CN103750837A - Electrical bioimpedance measuring device - Google Patents
Electrical bioimpedance measuring device Download PDFInfo
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- CN103750837A CN103750837A CN201410028651.1A CN201410028651A CN103750837A CN 103750837 A CN103750837 A CN 103750837A CN 201410028651 A CN201410028651 A CN 201410028651A CN 103750837 A CN103750837 A CN 103750837A
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Abstract
The invention discloses an electrical bioimpedance measuring device. The electrical bioimpedance measuring device comprises two input electrodes and two measuring electrodes located between the two input electrodes. The two input electrodes are used for being input to the surface of detected skin from a current source with variable frequency. The two measuring electrodes detect the impedance on the surface of the detected skin, so that local resistance and reactance of the detected skin are determined. The electrical bioimpedance measuring device further comprises a box body used for bearing the two input electrodes and the two measuring electrodes. The box body is provided with a first side and a second side which are opposite to each other. The first side is provided with four grooves and insulating blocks, wherein each insulating block is located between every two adjacent grooves. The two input electrodes and the two measuring electrodes are arranged in the four corresponding grooves respectively. Due to the facts that the electrical bioimpedance measuring device is provided with the four grooves and the two input electrodes and the two measuring electrodes are arranged in the four corresponding grooves respectively, a detected person can hold the electrical bioimpedance measuring device conveniently with fingers, and detection is more sensitive.
Description
Technical field
The present invention relates to a kind of bio-electrical impedance measuring apparatus, relate in particular to a kind of bio-electrical impedance measuring apparatus for detection of body local resistance and reactance.
Background technology
The concept of complex impedance: introduce the concept of plural number in mathematics, Z=R+jX(Z is complex impedance, and R is real resistance, and X is empty reactance).Resistance R, inductance L, capacitor C in circuit are represented with complex impedance.By complex impedance concept, R, L, C can be connected into circuit, form typical RLC series circuit.General action is amplifying signal, also can coordinate filter circuit to do filtering clutter processing.Simply say it is to make in loop sensing sensitiveer.
Adopt suitable frequency and phase-sensitive detection method, extract modulus and phase place or real part and the imaginary part of complex impedance, with the form of complex impedance, detect the electrical characteristics of tissue and organ, thereby on cellular level, obtain relevant physiology and pathology information, by information processing system and Human Physiology constant data storehouse, compare, analyze, judge.
Bio-electrical impedance technology is to utilize a kind of not damaged detection technique of the electrical characteristics of biological tissue and organ and change detection thereof and Human Physiology, biomedical information that pathological condition is relevant.It normally sends into a small AC measurment curtage by the electrode system that is placed in body surface to prizes pool object, detects corresponding electrical impedance and relevant physiology and pathological information.This technology has the features such as noinvasive, cheapness, safe, nontoxic, simple to operate and function information be abundant, and doctor and patient are easy to accept.
External bio-impedance technology level aspect basic research is higher, with electrical impedance technology, is just attracting the increasing researcher in countries in the world.Domestic bio-impedance technology is take applied research as main, and the bio-impedance technology take various clinical rheographies as representative has been widely used in clinical, and constantly makes progress, and level is higher.But, no matter in basic research or in clinical practice field, use single-measurement frequency, the present situation of only getting the existing impedance measurement method of impedance modulus is unsafty.Except quantitative difference and polarization bad, it may be also most important some, can reflect the valuable information dropout of bio-impedance feature and superiority.
The real advantage of bio-impedance technology or tempting part be to utilize bio-impedance entrained enrich physiology and pathological information, carry out the not damaged functional evaluation of tissue and organ.When disease occurs, the functional variation of linked groups and organ tends to prior to organic disease and other clinical symptoms, if detect in time and confirm that these change in incubation period or the functional compensation phase of disease, for generaI investigation, prevention and the early treatment of relevant disease, will be very favorable.What bio-impedance technology was extracted is the electrical characteristics information being closely related with tissue and organ dysfunction, blood, gas, body fluid and different tissues composition are had to unique resolving ability, factor on those impact tissues with organ electrical characteristics, flowing and distributing as blood, vim and vigour exchange in lung, body fluid variation and movement etc. are very responsive.Based on this, carry out the functional evaluation of the heart, brain, lung and associated cyclic system, hematodinamics and rheology are in body dynamic studies, the Evaluation of Functionals such as the early discovery of tumor and diagnosis and Body composition analysis of components, to be that bio-impedance technology shows superiority, represent the wide world of its tempting application prospect.
Resistance technique further develop the extraction aspect that should lay stress on perfect information complex impedance detection method and human tissue organ's function information.If take into full account the capacitive reactance characteristic in tissue impedance, improve theoretical model, adopt the detection method of complex impedance perfect information, take the erythrocyte in blood flow as observational study object, just may realize extraction from cellular level and be associated with Human Physiology, pathological state, abundant impedance perfect information.Foundation is intended to the novel detection technique of appraiser soma and organ dysfunction state.
Prior art please refer to JIUYUE in 2010 disclosed CN101827554A Chinese patent application on the 8th, and it discloses a kind of medical measuring device for bio-electrical impedance detection limit, and this device electrode is platform structure, is not easy to the gripping of finger; And insulation strip is concordant with electrode, easily cause being in contact with one another of finger, insulation effect can not be successful.
In view of above-mentioned defect, be necessary to design in fact a kind of improved bio-electrical impedance measuring apparatus.
Summary of the invention
Technical problem to be solved by this invention is: a kind of bio-electrical impedance measuring apparatus of being convenient to finger grip is provided.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of bio-electrical impedance measuring apparatus, it comprises two input electrodes and two measurement electrode between two input electrodes, described two input electrodes are for inputing to and examined skin surface from the current source of changeable frequency, described two measurement electrode are examined the impedance of skin surface to determine local electrical resistance and the reactance of being examined skin, described bio-electrical impedance measuring apparatus also comprises the box body for carrying two input electrodes and two measurement electrode, described box body has the first side and second side of contrary setting, described the first side is provided with four grooves and the collets between adjacent two grooves, described two input electrodes and two measurement electrode are separately positioned in corresponding four grooves.
Adopted technique scheme, beneficial effect of the present invention is: because bio-electrical impedance measuring apparatus is provided with four grooves, two input electrodes and two measurement electrode are separately positioned in corresponding four grooves, and the finger grip of being examined people is convenient, and detects sensitiveer.
The present invention further improves as follows:
Further, described collets are rectangular-shaped, and collets outwards protrude out and exceed groove from box body.
Further, described the second side is provided with the LCDs for showing test results.
Further, described the second side be also provided with power knob, load button, setting button, on roll button and under roll button, described power knob is for controlling the opening and closing of bio-electrical impedance measuring apparatus, described load button is for whether input current of control inputs electrode, the content that described setting button shows for setting LCDs, on described, roll the input current of button for increasing input electrode, roll button for reducing the input current of input electrode under described.
Further, described two measurement electrode and described two input electrodes are arranged in parallel.
Further, described four grooves comprise the first groove, the second groove, the 3rd groove and the 4th groove that are arranged in order, described bio-electrical impedance measuring apparatus also comprises two radiographic sources and two optical sensors, described two radiographic sources are arranged in the second groove and for irradiating and are examined skin surface, and described two optical sensors are arranged in the 3rd groove and for detection of the ray of being examined skin surface scattering or transmission.
Further, in described the 3rd groove, be also provided with heat sensor, described heat sensor is between two optical sensors.
Further, described measurement electrode comprises adherent base bottom, conductive adhesive layer, connects button layer and laying.
Further, described laying is non-woven fabrics, and described conductive adhesive layer is silver chloride.
Further, described bio-electrical impedance measuring apparatus is used for measuring fat, blood pressure and heart rate.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the impedance unit of bio-electrical impedance measuring apparatus of the present invention.
Fig. 2 is the schematic perspective view of bio-electrical impedance measuring apparatus of the present invention.
Fig. 3 is the schematic perspective view at another visual angle of bio-electrical impedance measuring apparatus of the present invention.
Fig. 4 is the structure composition diagram of measurement electrode shown in Fig. 1.
In figure, main element meets and is described as follows:
Input electrode 1 analytical equipment 10
Bio-electrical impedance measuring apparatus 100 measurement electrode 2
Conductive adhesive layer 32 connects button layer 33
Laying 34 box bodys 4
The first side 41 second sides 42
LCDs 421 power knobs 422
Load button 423 is set button 424
On roll button and roll button 426 425 times
The first groove 46 second grooves 47
The 3rd groove 48 the 4th groove 49
Collets 6 radiographic sources 7
Optical sensor 8 heat sensors 9
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
Be a kind of bio-electrical impedance measuring apparatus 100 according to the invention as shown in Figures 1 to 4, it is for measuring fat, blood pressure and heart rate.
As shown in Figure 1, bio-electrical impedance measuring apparatus 100 comprises two input electrodes 1 and two measurement electrode 2 between two input electrodes 1.Two input electrodes 1 input to and are examined skin surface for the current source 3 from changeable frequency, and the impedance that two measurement electrode 2 are examined skin surface is to determine local electrical resistance and the reactance of being examined skin.Two measurement electrode 2 and two input electrodes 1 are arranged in parallel.In addition, analytical equipment 10 is for analyzing and testing result.
As shown in Figure 2, bio-electrical impedance measuring apparatus 100 also comprises the box body 4 for carrying two input electrodes 1 and two measurement electrode 2.The first side 41 and the second side 42, the first sides 41 that box body 4 has contrary setting are provided with four grooves and the collets 6 between adjacent two grooves.Collets 6 are rectangular-shaped, and collets 6 outwards protrude out and exceed groove from box body 4.
Four grooves comprise the first groove 46, the second groove 47, the 3rd groove 48 and the 4th groove 49 that are arranged in order, described two input electrodes 1 are separately positioned in corresponding the first groove 46 and the 4th groove 49, and described two measurement electrode 2 are separately positioned in corresponding the second groove 47 and the 3rd groove 48.Bio-electrical impedance measuring apparatus 100 also comprises two radiographic sources 7 and two optical sensors 8.Two radiographic sources 7 are arranged in the second groove 47 and for irradiating is examined skin surface, and two optical sensors 8 are arranged in the 3rd groove 47 and for detection of the ray of being examined skin surface scattering or transmission.In the 3rd groove, 47 are also provided with heat sensor 9, and heat sensor 9 is between two optical sensors 8.Two radiographic sources 7, they irradiate and are examined systemic different volume area.These two radiographic sources 7 have respectively different space radiation characteristics, have different radiation subtended angles, and one of them radiographic source 7 is light emitting diodes, and another one radiographic source 7 is laser instrument (for example VCSEL laser instrument).Light emitting diode and laser instrument emission wavelength approach (for example 630nm and 650nm) but have the light of different subtended angles (for example 25 ° and 55 °) very much.Radiographic source 7 receives the light of light source 5 or 5 ' institute's scattering in user finger tip place tissue.Optical sensor 8 receives the light of radiographic source 7 institute's scattering in user finger tip place tissue.Heat sensor 9 can carry out thermal measurement.
As shown in Figure 3, the second side 42 of box body 4 is provided with the LCDs 421 for showing test results.The second side 42 is also provided with power knob 422, load button 423, sets button 424, on roll button 425 and under roll button 426.Power knob 422 is for controlling the opening and closing of bio-electrical impedance measuring apparatus 100, described load button 423 is for whether input current of control inputs electrode 1, the content that described setting button 424 shows for setting LCDs 421, on described, roll the input current of button 425 for increasing input electrode 1, roll button 426 for reducing the input current of input electrode 1 under described.
As shown in Figure 4, measurement electrode 3 comprises adherent base bottom 31, conductive adhesive layer 32, connects button layer 33 and laying 34.Laying 34 is non-woven fabrics, and conductive adhesive layer 32 is silver chloride.
Compared with prior art, the present invention is because bio-electrical impedance measuring apparatus 100 is provided with four grooves, and two input electrodes 1 and two measurement electrode 2 are separately positioned in corresponding four grooves, and the finger grip of being examined people is convenient, and detects sensitiveer.Collets 6 are rectangular-shaped, and collets 6 outwards protrude out and exceed groove from box body 4, and insulation effect is fairly good.The second side 42 of box body 4 is provided with the LCDs 421 for showing test results, and is convenient to real time inspection testing result.
The present invention is not limited to above-mentioned concrete embodiment, and those of ordinary skill in the art is from above-mentioned design, and without performing creative labour, all conversion of having done, within all dropping on protection scope of the present invention.
Claims (10)
1. a bio-electrical impedance measuring apparatus, it comprises two input electrodes and two measurement electrode between two input electrodes, described two input electrodes are for inputing to and examined skin surface from the current source of changeable frequency, described two measurement electrode are examined the impedance of skin surface to determine local electrical resistance and the reactance of being examined skin, it is characterized in that: described bio-electrical impedance measuring apparatus also comprises the box body for carrying two input electrodes and two measurement electrode, described box body has the first side and second side of contrary setting, described the first side is provided with four grooves and the collets between adjacent two grooves, described two input electrodes and two measurement electrode are separately positioned in corresponding four grooves.
2. bio-electrical impedance measuring apparatus as claimed in claim 1, is characterized in that: described collets are rectangular-shaped, and collets outwards protrude out and exceed groove from box body.
3. bio-electrical impedance measuring apparatus as claimed in claim 2, is characterized in that: described the second side is provided with the LCDs for showing test results.
4. bio-electrical impedance measuring apparatus as claimed in claim 3, it is characterized in that: described the second side be also provided with power knob, load button, setting button, on roll button and under roll button, described power knob is for controlling the opening and closing of bio-electrical impedance measuring apparatus, described load button is for whether input current of control inputs electrode, the content that described setting button shows for setting LCDs, on described, roll the input current of button for increasing input electrode, roll button for reducing the input current of input electrode under described.
5. bio-electrical impedance measuring apparatus as claimed in claim 4, is characterized in that: described two measurement electrode and described two input electrodes are arranged in parallel.
6. bio-electrical impedance measuring apparatus as claimed in claim 5, it is characterized in that: described four grooves comprise the first groove, the second groove, the 3rd groove and the 4th groove that are arranged in order, described bio-electrical impedance measuring apparatus also comprises two radiographic sources and two optical sensors, described two radiographic sources are arranged in the second groove and for irradiating and are examined skin surface, and described two optical sensors are arranged in the 3rd groove and for detection of the ray of being examined skin surface scattering or transmission.
7. bio-electrical impedance measuring apparatus as claimed in claim 6, is characterized in that: in described the 3rd groove, be also provided with heat sensor, described heat sensor is between two optical sensors.
8. bio-electrical impedance measuring apparatus as claimed in claim 7, is characterized in that: described measurement electrode comprises adherent base bottom, conductive adhesive layer, connects button layer and laying.
9. bio-electrical impedance measuring apparatus as claimed in claim 8, is characterized in that: described laying is non-woven fabrics, and described conductive adhesive layer is silver chloride.
10. bio-electrical impedance measuring apparatus as claimed in claim 9, is characterized in that: described bio-electrical impedance measuring apparatus is used for measuring fat, blood pressure and heart rate.
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| CN201410028651.1A CN103750837A (en) | 2014-01-21 | 2014-01-21 | Electrical bioimpedance measuring device |
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| CN201410028651.1A CN103750837A (en) | 2014-01-21 | 2014-01-21 | Electrical bioimpedance measuring device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104188662A (en) * | 2014-08-22 | 2014-12-10 | 林建中 | Blood-sampling-free type blood sugar monitoring device and use method thereof |
| US20160051170A1 (en) * | 2014-08-22 | 2016-02-25 | Gien Chung LIN | Bloodless Glucose Measuring Device and Method of Use Thereof |
| CN105852839A (en) * | 2016-03-23 | 2016-08-17 | 中山大学 | Heart rate measuring method and device based on bioelectrical impedance technology |
| CN108089060A (en) * | 2018-02-23 | 2018-05-29 | 中国人民解放军第四军医大学 | Noninvasive biological tissue's device for measuring dielectric characteristics |
| CN109247937A (en) * | 2017-07-13 | 2019-01-22 | 三星电子株式会社 | The operating method of biological processor, bio signal detection system and biological processor |
| CN109498011A (en) * | 2017-11-23 | 2019-03-22 | 广州市康普瑞生营养健康咨询有限公司 | A kind of bio-electrical impedance measuring apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1310982A (en) * | 2000-02-25 | 2001-09-05 | 株式会社百利达 | Portable type human fat detecting instrument |
| CN101827554A (en) * | 2007-09-07 | 2010-09-08 | 英戈·弗洛尔 | Medical measuring device for bioelectrical impedance measurement |
| CN102028462A (en) * | 2009-10-01 | 2011-04-27 | 塞卡股份公司 | Bioimpedance measuring device |
-
2014
- 2014-01-21 CN CN201410028651.1A patent/CN103750837A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1310982A (en) * | 2000-02-25 | 2001-09-05 | 株式会社百利达 | Portable type human fat detecting instrument |
| CN101827554A (en) * | 2007-09-07 | 2010-09-08 | 英戈·弗洛尔 | Medical measuring device for bioelectrical impedance measurement |
| CN102028462A (en) * | 2009-10-01 | 2011-04-27 | 塞卡股份公司 | Bioimpedance measuring device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104188662A (en) * | 2014-08-22 | 2014-12-10 | 林建中 | Blood-sampling-free type blood sugar monitoring device and use method thereof |
| US20160051170A1 (en) * | 2014-08-22 | 2016-02-25 | Gien Chung LIN | Bloodless Glucose Measuring Device and Method of Use Thereof |
| CN105852839A (en) * | 2016-03-23 | 2016-08-17 | 中山大学 | Heart rate measuring method and device based on bioelectrical impedance technology |
| CN109247937A (en) * | 2017-07-13 | 2019-01-22 | 三星电子株式会社 | The operating method of biological processor, bio signal detection system and biological processor |
| CN109247937B (en) * | 2017-07-13 | 2023-11-24 | 三星电子株式会社 | Biological processor, biological signal detection system, and method of operating biological processor |
| CN109498011A (en) * | 2017-11-23 | 2019-03-22 | 广州市康普瑞生营养健康咨询有限公司 | A kind of bio-electrical impedance measuring apparatus |
| CN108089060A (en) * | 2018-02-23 | 2018-05-29 | 中国人民解放军第四军医大学 | Noninvasive biological tissue's device for measuring dielectric characteristics |
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Application publication date: 20140430 |