CN107811616B - Flexible multi-parameter human body sign detector and use method thereof - Google Patents
Flexible multi-parameter human body sign detector and use method thereof Download PDFInfo
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- CN107811616B CN107811616B CN201610826312.7A CN201610826312A CN107811616B CN 107811616 B CN107811616 B CN 107811616B CN 201610826312 A CN201610826312 A CN 201610826312A CN 107811616 B CN107811616 B CN 107811616B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0062—Arrangements for scanning
- A61B5/0064—Body surface scanning
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/053—Measuring electrical impedance or conductance of a portion of the body
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/053—Measuring electrical impedance or conductance of a portion of the body
- A61B5/0537—Measuring body composition by impedance, e.g. tissue hydration or fat content
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/48—Other medical applications
- A61B5/4869—Determining body composition
- A61B5/4872—Body fat
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6802—Sensor mounted on worn items
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7225—Details of analog processing, e.g. isolation amplifier, gain or sensitivity adjustment, filtering, baseline or drift compensation
Abstract
The invention provides a flexible multi-parameter human body sign detector. The detector integrates a flexible substrate, a flexible electrode, a pulse sensor and a processing circuit, pulse is monitored through the pulse detector, and human body impedance is tested through the conductive electrode; by stretching the probe, preferably in conjunction with the extender, the impedance of the body can be measured at different locations. Compared with the prior art, the detector can be stretched, twisted, folded and the like, can be used for testing human body impedance and pulse signs, has the characteristics of portability and comfortableness, and has good application prospect in the aspects of human body health monitoring, fat content detection and the like.
Description
Technical Field
The invention relates to the field of human body sign detection, in particular to a flexible multi-parameter human body sign detector and a using method thereof.
Background
Along with the development of the internet of things, intelligent medical treatment draws more and more attention of people. The core of wisdom medical treatment is the detection of realizing human sign, and the core of realizing this function is portable, wearable health equipment, and it collects human health information's intelligent collection, intelligent storage and classification, intelligent interaction, intelligent processing in an organic whole, will initiate the new revolution of electronics.
The original portable wearable health equipment plays a crucial role in the intelligent medical competition facing future major application requirements, and is the key for improving the creative core competitiveness in our country. The biggest requirement of portable and wearable health equipment is the perfect fit with organs such as human body, skin, and this can only rely on soft, flexible novel electronics, that is, flexible electronics, and it has all unique advantages that traditional electronics do not possess, for example: can be bent and deformed, can be attached to a surface of any shape, can reduce the influence when being impacted by the outside, can be used in a large area, and has lighter weight and lower cost. In 2000, the Science journal combines flexible electronics and genomics as a ten-generation technology in the 21 st century. The electronic engineering era (EE TIMES) of the world famous electronics journal also listed flexible electronics as one of the ten global emerging technologies in 2010.
The appearance of google glasses makes people pay more and more attention to wearable equipment, from equipment such as initial google glasses to present intelligent helmet, intelligent wrist-watch, intelligent bracelet, from initial motion meter step function, to functions such as present pulse control, heartbeat control, GPS navigation, wearable equipment kind and function have been more and more abundant and more intelligent. However, the wearable devices existing on the market are not really flexible devices, nor human-body compatible devices, such as: the smart watch is formed by integrating a stress sensor, an acceleration sensor, a magnetic sensor and the like on the basis of the existing watch, but the sensors are rigid sensors.
An ideal portable, wearable device is human-body compatible, with flexible features such as: can be bent and stretched, can be attached to organs such as human skin, and can be implanted into clothes. Furthermore, since the human body has various signs, for example: pulse, human impedance, blood pressure, etc., and the integration of the human sign detection function of multiple parameters in the flexible detector will improve the intelligence thereof.
Disclosure of Invention
The invention provides a flexible multi-parameter human body sign detector aiming at the current development situation and trend of portable and wearable equipment, which can detect impedance and pulse waveform sign information of a human body and can deform in stretching, twisting, folding and the like.
The technical scheme of the invention is as follows: a flexible multi-parameter human body sign detector comprises a flexible substrate, a pulse sensor, a first conductive electrode, a second conductive electrode, a flexible electrode and a processing circuit.
The flexible substrate is made of an insulating elastomeric material (for the sake of distinction from the elastomeric material hereinafter referred to as the first elastomeric material) which can be deformed by an external force. The first elastomer material may be a thermoplastic elastomer, or may be a thermosetting elastomer material, including but not limited to one or more of silicone, Polydimethylsiloxane (PDMS), rubber, hydrogel, polyurethane, SEBS, POE, and the like.
The flexible electrode is electrically conductive and is composed of a liquid metal and an elastomeric material (for the purpose of distinguishing from the elastomeric material referred to above, this elastomeric material is referred to as the second elastomeric material).
The liquid metal is a metal conductive material which is liquid at room temperature, and includes but is not limited to mercury, gallium-indium alloy, gallium-indium-tin alloy, and gallium-indium alloy, gallium-indium-tin alloy and the like doped with one or more of transition group metal and solid nonmetal elements.
The second elastomer material can deform under the action of external force, and can be a thermoplastic elastic material or a thermosetting elastomer material, including but not limited to one or more of silica gel, Polydimethylsiloxane (PDMS), rubber, hydrogel, polyurethane, SEBS, POE and the like.
As a construction of the flexible electrode, said liquid metal is impregnated in a second elastomeric material in the form of a tube. When the first elastomer material is the same as the second elastomer material, the invention provides a method for preparing the flexible electrode, which comprises the following steps: when the flexible substrate is formed, a tubular hole is reserved at a position where a flexible electrode needs to be prepared by using a mould; then, liquid metal is poured into the tubular hole under room temperature conditions.
As an alternative to the flexible electrode, the liquid metal particles are dispersed in a second elastomeric material. The invention provides a method for preparing the flexible electrode, which comprises the following steps:
when the second elastomer material is in a solid state at normal temperature and is heated and melted, the heated and melted second elastomer material and the liquid metal are stirred and mixed uniformly to form a mixture; and then coating or pouring the mixture on a flexible substrate, and cooling and solidifying to form the flexible electrode.
When the second elastomer material is in a liquid state at normal temperature and is heated and cured, stirring and uniformly mixing the liquid metal and the liquid second elastomer at room temperature to form a mixture; and then coating or pouring the mixture on a flexible substrate, and heating and curing to form the flexible electrode.
The flexible electrode is fixed on the flexible substrate, one end of the flexible electrode is connected with the first conductive electrode through the processing circuit, and the other end of the flexible electrode is connected with the second conductive electrode.
The processing circuit comprises an alternating current signal generating module, a signal processing module and a control Module (MCU); the alternating current signal generating module is connected with the first conductive electrode; one end of the flexible electrode is connected with the signal processing module, and the other end of the flexible electrode is connected with the second conductive electrode.
Under the conditions of power supply and control of the control module, the alternating current signal generating module generates waveforms with specific frequency and amplitude to excite external impedance, a closed loop is formed by the first conductive electrode, the human body, the second conductive electrode and the flexible electrode, an impedance response signal is obtained by excitation, and the impedance response signal is processed by the signal processing module to obtain the impedance.
As an implementation manner, the alternating current signal generating module includes a power supply, a direct digital frequency synthesizer (DDS), a digital-to-analog converter (DAC), and an integrated amplifying circuit; one end of the DDS is connected with the MCU, the other end of the DDS is connected with the DAC, and the other end of the DAC is connected with the integrated amplification circuit.
As one implementation, the signal processing module includes a gain amplifying circuit, an analog-to-digital converter (ADC), and a digital signal processing module (DSP); one end of the gain amplification circuit is connected with the flexible electrode, the other end of the gain amplification circuit is connected with one end of the ADC, the other end of the ADC is connected with the DSP, and the other end of the DSP is connected with the MCU; the gain amplification circuit is sampled by the ADC, the ADC transmits signals to the DSP for digital processing, a real part and an imaginary part of the signals are output to the MCU after discrete Fourier transform, and the magnitude of external impedance is calculated through the MCU.
The pulse sensor is connected to the flexible substrate, the first conductive electrode or the second conductive electrode and used for measuring human pulse signals.
The pulse sensor is divided into a non-contact type and a contact type. Non-contact includes, but is not limited to, photoelectric type sensors, and the like. Contacts include, but are not limited to, contact piezoresistive sensors, contact pressure-capacitance sensors, contact piezoelectric sensors, contact piezomagnetic sensors, and the like. When the pulse sensor is in a contact type, the pulse sensor is in contact with the skin of the human body. When the pulse sensor is a photoelectric sensor, the photoelectric sensor is not in contact with the skin, at the moment, the flexible substrate, the first conductive electrode or the second conductive electrode are provided with through holes, and light emitted by the photoelectric detector irradiates the skin through the through holes for detection.
Preferably, the tensile rate of the flexible substrate is more than 150%, and the Young modulus is less than 100 MPa.
Preferably, the stretching ratio of the flexible electrode is more than 150%.
Preferably, the stretching ratio of the flexible electrode is larger than that of the flexible substrate.
Preferably, the processing circuit further comprises a bluetooth module, and the bluetooth module is connected to the MCU and used for wirelessly communicating the impedance information.
Preferably, the pulse sensor is located on the first conductive electrode.
When the flexible multi-parameter human body sign detector is used, the first conductive electrode and the second conductive electrode are respectively placed at different positions of a human body, the power supply is switched on, so that the human body impedance information between the first conductive electrode and the second conductive electrode can be measured, and meanwhile, a pulse sensor can be used for measuring pulse signals. Because the flexible substrate and the flexible electrode have the deformability of bending, stretching, twisting and the like, the placement positions of the first conductive electrode and the second conductive electrode can be adjusted, the high attachment of the detector and the skin of the human body is realized, and the impedance information and the pulse information between different parts of the human body are measured.
In practical use, the length of the flexible electrode is limited for convenience of carrying and the like, and in this case, the extender can be designed to extend the length of the flexible electrode so as to measure the parameter measurement between long-distance positions. At this time, the flexible multi-parameter human body sign detector further comprises a conductive joint, wherein the conductive joint is electrically connected with the flexible electrode, and preferably electrically connected with one end of the flexible electrode close to the second conductive electrode. The extender comprises a flexible substrate A, a flexible electrode A, a second conductive electrode A and a conductive joint A; the flexible electrode A is fixed on the flexible substrate A, one end of the flexible electrode A is connected with the conductive joint A, and the position close to the other end of the flexible electrode A is connected with the second conductive electrode A; when the flexible multi-parameter human body sign detector is used, the conductive joint A in the extender is connected with the conductive joint of the flexible multi-parameter human body sign detector.
Similar to the flexible substrate, the flexible substrate a is made of an insulating elastomer material and can be deformed by an external force. Preferably, the material of the flexible substrate a is the same as that of the flexible substrate.
Similar to the flexible electrode, the flexible electrode a has conductivity and is composed of liquid metal and an elastomer material. Preferably, the flexible electrode A is made of the same material and structure as the flexible electrode.
The material and function of the second conductive electrode a are similar to those of the second conductive electrode. Preferably, the material of the second conductive electrode a is the same as that of the second conductive electrode.
In conclusion, the flexible multi-parameter human body sign detector is formed by integrating the flexible substrate, the flexible electrode, the pulse sensor and the processing circuit. Monitoring the pulse through a pulse detector; the conductive electrode is used for testing the impedance of the human body, and the ECG (electrocardiogram) signal of the human body can be measured; by stretching the probe, preferably in conjunction with the extender, the impedance of the body can be measured at different locations, for example: when the conductive electrode is attached to the belly of a human body, the impedance can be measured to reflect the fat content. Compared with the prior art, the flexible multi-parameter human body sign detector can be stretched, twisted, folded and the like, can be used for testing human body impedance and pulse signs, has the characteristics of portability and comfortableness, and has good application prospects in the aspects of human body health monitoring, fat content detection and the like.
Drawings
Fig. 1 is a schematic structural diagram of a flexible multi-parameter human body sign detector in embodiment 1 of the present invention;
FIG. 2 is a schematic structural diagram of an extender of the flexible multi-parameter human body sign detector in embodiment 1 of the present invention;
fig. 3 is a block diagram of a processing circuit in embodiment 1 of the present invention.
The reference numerals in fig. 1-2 are: the pulse sensor comprises a flexible substrate 1, a first conductive electrode 2, a pulse sensor 3, a processing circuit 4, a second conductive electrode 5, a flexible electrode 6 and a conductive joint 7.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples. It is to be noted that the following examples are intended to facilitate the understanding of the present invention, and do not set forth any limitation thereto.
Example 1:
as shown in fig. 1, the flexible multi-parameter human body sign detector in this embodiment 1 includes a flexible substrate 1, a first conductive electrode 2, a pulse sensor 3, a processing circuit 4, a second conductive electrode 5, a flexible electrode 6, and a conductive joint 7.
The first conductive electrode 2, the processing circuit 4, the second conductive electrode 5 and the flexible electrode 6 are fixedly connected to the flexible substrate 1. The pulse sensor 3 is mounted inside the first conductive electrode 2.
The flexible substrate material in this embodiment is an elastomeric material, Polydimethylsiloxane (PDMS).
In this embodiment, the flexible electrode 6 is composed of liquid alloy gallium indium tin and elastomer material PDMS. At room temperature, the alloy gallium indium tin is liquid. And, the liquid metal is poured into the tubular elastomeric material PDMS.
The pulse sensor 3 in this embodiment is a photoelectric sensor, and the first conductive electrode 2 is provided with a through hole, the photoelectric sensor does not contact with the skin of the human body, and the emitted light irradiates the skin of the human body through the through hole for detection.
In this embodiment, the processing circuit 4 includes an ac signal generating module, a signal processing module, and a control unit (MCU).
The alternating current signal generating module comprises a direct digital frequency synthesizer (DDS), a digital-to-analog converter (DAC) and an integrated amplifying circuit; one end of the DDS is connected with the MCU, the other end of the DDS is connected with the DAC, and the other end of the DAC is connected with the integrated amplification circuit. The output end of the alternating current signal generating module is connected with the first conductive electrode 2.
The signal processing module includes a gain amplification circuit, an analog-to-digital converter (ADC), and a digital signal processing module (DSP). One end of the gain amplification circuit is connected with the flexible electrode 6, the other end of the gain amplification circuit is connected with one end of the ADC, the other end of the ADC is connected with the DSP, and the other end of the DSP is connected with the MCU.
One end of the flexible electrode 6 is connected with the gain amplification circuit, and the other end is connected with the first conductive electrode 5.
Under the condition of power supply, the MCU controls the DDS to generate a waveform with specific frequency and amplitude through the DAC and the integrated amplification circuit so as to excite external impedance, a closed loop is formed through the first conductive electrode, the human body, the second conductive electrode and the flexible electrode, weak impedance response signals are obtained through excitation, the weak impedance response signals are sampled by the ADC through the gain amplification circuit, the output of the ADC is sent to the DSP for digital processing, the real part and the imaginary part of the ADC are output to the MCU after discrete Fourier transform, and the external impedance is calculated through the MCU.
In this embodiment, the processing circuit 4 further includes a bluetooth module, and the MCU transmits the external impedance to the bluetooth module to communicate with the upper computer.
The power supply is respectively connected with the MCU, the Bluetooth module and the alternating current signal generating module for supplying power.
In this embodiment, the flexible multi-parameter human body sign detector is prepared by the following steps:
when the flexible substrate is molded, a tubular hole is reserved at a position where the elastic electrode 6 needs to be prepared by using a mold, meanwhile, positions of the first conductive electrode 2, the second conductive electrode 5 and the processing circuit 4 are reserved by using the mold, and leads of the second conductive electrode 5 and the processing circuit 4 are communicated with the tubular hole; then, the gallium indium tin alloy which is liquid at room temperature is poured into the tubular hole, and the conductive joint 7 is directly sealed in the tubular hole.
In this embodiment, the tensile rate of the flexible substrate 1 is greater than 150%, and the young's modulus is less than 100 MPa. The stretching ratio of the flexible electrode 6 is greater than 150%, and the stretching ratio of the elastic electrode 6 is greater than that of the flexible substrate 1.
In this embodiment, in order to extend the elastic electrode, the flexible multi-parameter human body sign detector further comprises an extender, as shown in fig. 2, the extender comprises a flexible substrate 1, a second conductive electrode 5, a flexible electrode 6, and a conductive joint 7. The second conductive electrode 5, the flexible electrode 6 and the conductive joint 7 are fixed on the flexible substrate 1, one end of the flexible electrode 6 is connected with the conductive joint 7, and the position close to the other end is connected with the second conductive electrode 5. When the device is used, the conductive connector 7 of the extender is connected with the conductive connector 7 of the detector, so that the detector is extended.
When the flexible multi-parameter human body sign detector is used, the first conductive electrode and the second conductive electrode are respectively placed at different positions of a human body, the power supply is switched on, the human body impedance information between the first conductive electrode and the second conductive electrode can be measured, and meanwhile, a pulse signal can be measured by using the pulse sensor. For example: when the first conductive electrode and the second conductive electrode are attached to different positions of the belly of a human body, the impedance can be measured, the fat content can be reflected, and the fat-reducing health care pillow is helpful for monitoring the fat-reducing effect.
Because this flexible basement and flexible electrode have the deformability such as bending, tensile, twist, can adjust the position of placing of first conductive electrode and second conductive electrode, realize the high laminating of detector and human skin, survey the impedance information between the different positions of human body to and pulse information, and carry out wireless communication through bluetooth. In addition, the flexible multi-parameter human body sign detector has the characteristics of portability and comfort, and has good application prospects in the aspects of human body health monitoring and fat content detection.
Example 2:
in this embodiment, the structure of the flexible multi-parameter human body sign detector is substantially the same as that of the flexible multi-parameter human body sign detector in embodiment 1, except that in the flexible electrode 6, the liquid metal is poured into the tubular elastomer material PDMS, and is dispersed in the elastomer material PDMS together with the liquid metal particles.
In this embodiment, the flexible multi-parameter human body sign detector is prepared by the following steps:
uniformly stirring and mixing the gallium indium tin alloy which is in the liquid state at room temperature and the PDMS material which is in the liquid state at room temperature to form a mixture; then, coating or pouring the mixture on a flexible substrate, and heating and curing to form a flexible electrode 6; thereafter, the first conductive electrode 2, the second conductive electrode 5, and the processing circuit 4 are prepared on the flexible substrate 1.
In this embodiment, the use method of the flexible multi-parameter human body sign detector is the same as that in embodiment 1, and is not described herein again.
The above embodiments are described in detail to explain the technical solutions and advantages of the present invention, and it should be understood that the above embodiments are only specific examples of the present invention and are not intended to limit the present invention, and any modifications and improvements made within the scope of the principles of the present invention should be included in the protection scope of the present invention.
Claims (19)
1. A flexible multi-parameter human body sign detector is characterized in that: the pulse sensor comprises a flexible substrate, a pulse sensor, a first conductive electrode, a second conductive electrode, a flexible electrode and a processing circuit;
the flexible substrate is made of an insulating first elastomer material;
the flexible electrode has conductivity and is composed of liquid metal and a second elastomer material; in the flexible electrode, liquid metal is poured into the second tubular elastomer material;
the first conductive electrode, the processing circuit, the second conductive electrode and the flexible electrode are fixed on the flexible substrate; the stretching rate of the flexible electrode is greater than that of the flexible substrate;
the pulse sensor is connected to the flexible substrate, the first conductive electrode or the second conductive electrode;
the processing circuit comprises an alternating current signal generating module, a signal processing module and a control module; the alternating current signal generating module is connected with the first conductive electrode; one end of the flexible electrode is connected with the signal processing module, and the other end of the flexible electrode is connected with the second conductive electrode;
under the conditions of power supply and control of the control module, the alternating current signal generating module generates waveforms with specific frequency and amplitude to excite external impedance, a closed loop is formed by the first conductive electrode, the human body, the second conductive electrode and the flexible electrode, an impedance response signal is obtained by excitation, and the impedance response signal is processed by the signal processing module to obtain the impedance.
2. The flexible multi-parameter human sign detector of claim 1, wherein: the first elastomer material comprises one or more of silica gel, polydimethylsiloxane, rubber, hydrogel, polyurethane, SEBS and POE;
the second elastomer material comprises one or more of silica gel, polydimethylsiloxane, rubber, hydrogel, polyurethane, SEBS and POE.
3. The flexible multi-parameter human sign detector of claim 1, wherein: the liquid metal comprises mercury, gallium indium alloy, gallium indium tin alloy, and one or more doped gallium indium alloy and gallium indium tin alloy of transition group metal and solid nonmetal elements.
4. The flexible multi-parameter human sign detector of claim 1, wherein: the alternating current signal generating module comprises a power supply, a direct digital frequency synthesizer, a digital-to-analog converter and an integrated amplifying circuit; one end of the direct digital frequency synthesizer is connected with the control module, the other end of the direct digital frequency synthesizer is connected with the digital-to-analog converter, and the other end of the digital-to-analog converter is connected with the integrated amplifying circuit.
5. The flexible multi-parameter human sign detector of claim 1, wherein: the signal processing module comprises a gain amplifying circuit, an analog-to-digital converter and a digital signal processing module; one end of the gain amplification circuit is connected with the flexible electrode, the other end of the gain amplification circuit is connected with one end of the analog-to-digital converter, the other end of the analog-to-digital converter is connected with the digital signal processing module, and the other end of the digital signal processing module is connected with the control module.
6. The flexible multi-parameter human sign detector of claim 1, wherein: when the pulse sensor is a photoelectric sensor, the flexible substrate, the first conductive electrode or the second conductive electrode is provided with a through hole, and light emitted by the photoelectric detector irradiates the skin through the through hole for detection.
7. The flexible multi-parameter human sign detector of claim 1, wherein: the tensile rate of the flexible substrate is more than 150%, and the Young modulus is less than 100 Mpa.
8. The flexible multi-parameter human sign detector of claim 1, wherein: the stretching rate of the flexible electrode is more than 150%.
9. The flexible multiparameter human sign detector according to any one of claims 1 to 8, wherein: the device further comprises an extender, wherein the extender comprises a flexible substrate A, a flexible electrode A, a second conductive electrode A and a conductive joint A; the flexible electrode A is fixed on the flexible substrate A, one end of the flexible electrode A is connected with the conductive joint A, and the position close to the other end of the flexible electrode A is connected with the second conductive electrode A;
when the flexible multi-parameter human body sign detector is used, the conductive joint A in the extender is connected with the conductive joint of the flexible multi-parameter human body sign detector.
10. Use of a flexible multiparameter human sign detector according to any one of claims 1 to 8, characterized in that: the first conductive electrode and the second conductive electrode are respectively placed at different positions of a human body, the power supply is switched on, the human body impedance information between the first conductive electrode and the second conductive electrode is measured, and meanwhile, a pulse sensor is utilized to measure pulse signals.
11. A flexible multi-parameter human body sign detector is characterized in that: the pulse sensor comprises a flexible substrate, a pulse sensor, a first conductive electrode, a second conductive electrode, a flexible electrode and a processing circuit;
the flexible substrate is made of an insulating first elastomer material;
the flexible electrode has conductivity and is composed of liquid metal and a second elastomer material; in the flexible electrode, liquid metal particles are dispersed in a second elastomer material;
the flexible electrode is fixed on the flexible substrate;
the pulse sensor is connected to the flexible substrate, the first conductive electrode or the second conductive electrode;
the processing circuit comprises an alternating current signal generating module, a signal processing module and a control module; the alternating current signal generating module is connected with the first conductive electrode; one end of the flexible electrode is connected with the signal processing module, and the other end of the flexible electrode is connected with the second conductive electrode;
under the conditions of power supply and control of the control module, the alternating current signal generation module generates waveforms with specific frequency and amplitude to excite external impedance, a closed loop is formed by the first conductive electrode, the human body, the second conductive electrode and the flexible electrode, an impedance response signal is obtained by excitation, and the impedance response signal is processed by the signal processing module to obtain the impedance;
the preparation method of the flexible electrode comprises the following steps:
when the second elastomer material is in a solid state at normal temperature and is heated and melted, the heated and melted second elastomer material and the liquid metal are stirred and mixed uniformly to form a mixture; then, coating or pouring the mixture on a flexible substrate, and cooling and solidifying to form a flexible electrode;
when the second elastomer material is in a liquid state at normal temperature and is heated and cured, stirring and uniformly mixing the liquid metal and the liquid second elastomer at room temperature to form a mixture; and then coating or pouring the mixture on a flexible substrate, and heating and curing to form the flexible electrode.
12. The flexible multi-parameter human sign detector of claim 11, wherein: the alternating current signal generating module comprises a power supply, a direct digital frequency synthesizer, a digital-to-analog converter and an integrated amplifying circuit; one end of the direct digital frequency synthesizer is connected with the control module, the other end of the direct digital frequency synthesizer is connected with the digital-to-analog converter, and the other end of the digital-to-analog converter is connected with the integrated amplifying circuit.
13. The flexible multi-parameter human sign detector of claim 11, wherein: the signal processing module comprises a gain amplifying circuit, an analog-to-digital converter and a digital signal processing module; one end of the gain amplification circuit is connected with the flexible electrode, the other end of the gain amplification circuit is connected with one end of the analog-to-digital converter, the other end of the analog-to-digital converter is connected with the digital signal processing module, and the other end of the digital signal processing module is connected with the control module.
14. The flexible multi-parameter human sign detector of claim 11, wherein: when the pulse sensor is a photoelectric sensor, the flexible substrate, the first conductive electrode or the second conductive electrode is provided with a through hole, and light emitted by the photoelectric detector irradiates the skin through the through hole for detection.
15. The flexible multi-parameter human sign detector of claim 11, wherein: the tensile rate of the flexible substrate is more than 150%, and the Young modulus is less than 100 MPa.
16. The flexible multi-parameter human sign detector of claim 11, wherein: the stretching rate of the flexible electrode is more than 150%.
17. The flexible multi-parameter human sign detector of claim 11, wherein: the stretching rate of the flexible electrode is greater than that of the flexible substrate.
18. The flexible multiparameter human sign detector according to any one of claims 11 to 17, wherein: the device further comprises an extender, wherein the extender comprises a flexible substrate A, a flexible electrode A, a second conductive electrode A and a conductive joint A; the flexible electrode A is fixed on the flexible substrate A, one end of the flexible electrode A is connected with the conductive joint A, and the position close to the other end of the flexible electrode A is connected with the second conductive electrode A;
when the flexible multi-parameter human body sign detector is used, the conductive joint A in the extender is connected with the conductive joint of the flexible multi-parameter human body sign detector.
19. Use of a flexible multiparameter human sign detector according to any one of claims 11 to 17, characterized in that: the first conductive electrode and the second conductive electrode are respectively placed at different positions of a human body, the power supply is switched on, the human body impedance information between the first conductive electrode and the second conductive electrode is measured, and meanwhile, a pulse sensor is utilized to measure pulse signals.
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108814582A (en) * | 2018-03-28 | 2018-11-16 | 中国科学院宁波材料技术与工程研究所 | A kind of elastic electrode and preparation method thereof with vertical conductive structure |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1362712A (en) * | 2000-09-29 | 2002-08-07 | Jsr株式会社 | Conducting metal particles, conducting composite metal particles and applied products using same |
| CN103619590A (en) * | 2011-06-09 | 2014-03-05 | 维讯柔性电路板有限公司 | Strechable circuit assemblies |
| KR101588132B1 (en) * | 2014-09-18 | 2016-01-25 | 고려대학교 산학협력단 | Stretchable acoustic device using liquid metal coil |
| CN105283122A (en) * | 2012-03-30 | 2016-01-27 | 伊利诺伊大学评议会 | Appendage mountable electronic devices conformable to surfaces |
| CN105357997A (en) * | 2013-06-21 | 2016-02-24 | Mc10股份有限公司 | Band with conformable electronics |
| CN105852806A (en) * | 2016-03-24 | 2016-08-17 | 浙江大学 | Electronic skin for wound real-time monitoring |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10315863B4 (en) * | 2003-04-08 | 2013-03-14 | Dräger Medical GmbH | electrode belt |
| JP4116497B2 (en) * | 2003-06-16 | 2008-07-09 | 株式会社タニタ | Bioelectrical impedance measuring device |
| AR058368A1 (en) * | 2005-12-20 | 2008-01-30 | Dixtal Biomedica Ind E Com Ltd | ELECTRODE ASSEMBLY FOR ELECTRICAL IMPEDANCE TOMOGRAPHY |
| US7445522B2 (en) * | 2006-12-05 | 2008-11-04 | Tyco Healthcare Group Lp | Electrode connector |
| DE102008013707A1 (en) * | 2008-03-11 | 2009-09-24 | Dräger Medical AG & Co. KG | Belt with sensors |
| KR102046377B1 (en) * | 2011-09-24 | 2019-11-19 | 프레지던트 앤드 펠로우즈 오브 하바드 칼리지 | Artificial skin and elastic strain sensor |
| JP5756918B2 (en) * | 2011-10-14 | 2015-07-29 | パナソニックＩｐマネジメント株式会社 | Body composition measuring device |
| DE102012106893B4 (en) * | 2012-07-30 | 2016-10-27 | Karlsruher Institut für Technologie | Electrode and measuring device for recording biomedical vital signs |
| CN103682726B (en) * | 2013-09-27 | 2015-11-18 | 番禺得意精密电子工业有限公司 | Elastic electric conductor, electric connector and manufacture method thereof |
| WO2015046058A1 (en) * | 2013-09-30 | 2015-04-02 | 学校法人北里研究所 | Length measurement device, length measurement method, program, shape estimation device, and body fat percentage measurement device |
| CN203707402U (en) * | 2013-12-05 | 2014-07-09 | 番禺得意精密电子工业有限公司 | Electric connector |
| US20160066812A1 (en) * | 2014-09-08 | 2016-03-10 | Aliphcom | Strap band for a wearable device |
| CN105449380A (en) * | 2015-11-28 | 2016-03-30 | 林永勤 | Liquid metal electric wire and manufacturing method therefor |
| CN105342613A (en) * | 2015-12-02 | 2016-02-24 | 中国科学院半导体研究所 | Flexible electrode for measuring muscle impedance and preparation method thereof |
| CN205322327U (en) * | 2015-12-31 | 2016-06-22 | 华南理工大学 | Wearable foot ring based on human composition of bio -electrical impedance measurable quantity |
| CN205406177U (en) * | 2016-03-10 | 2016-07-27 | 中船重工（葫芦岛）特种电缆有限责任公司 | Gao rou, high ductility cable |
-
2016
- 2016-09-14 CN CN201610826312.7A patent/CN107811616B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1362712A (en) * | 2000-09-29 | 2002-08-07 | Jsr株式会社 | Conducting metal particles, conducting composite metal particles and applied products using same |
| CN103619590A (en) * | 2011-06-09 | 2014-03-05 | 维讯柔性电路板有限公司 | Strechable circuit assemblies |
| CN105283122A (en) * | 2012-03-30 | 2016-01-27 | 伊利诺伊大学评议会 | Appendage mountable electronic devices conformable to surfaces |
| CN105357997A (en) * | 2013-06-21 | 2016-02-24 | Mc10股份有限公司 | Band with conformable electronics |
| KR101588132B1 (en) * | 2014-09-18 | 2016-01-25 | 고려대학교 산학협력단 | Stretchable acoustic device using liquid metal coil |
| CN105852806A (en) * | 2016-03-24 | 2016-08-17 | 浙江大学 | Electronic skin for wound real-time monitoring |
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