CN110403589B - Disposable heart rate plaster - Google Patents
Disposable heart rate plaster Download PDFInfo
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- CN110403589B CN110403589B CN201810399640.2A CN201810399640A CN110403589B CN 110403589 B CN110403589 B CN 110403589B CN 201810399640 A CN201810399640 A CN 201810399640A CN 110403589 B CN110403589 B CN 110403589B
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- conductive fiber
- heart rate
- plaster
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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
- A61B5/024—Detecting, measuring or recording pulse rate or heart rate
- A61B5/02444—Details of sensor
Abstract
The invention relates to a disposable heart rate paste which comprises single-sided flexible paste paper, a flat cable and a plurality of flexible conductive fiber bundle conducting wires, wherein the flexible conductive fiber bundles are stacked in a criss-cross mode, connected with the flat cable to form an array type stress sensor and attached to the single-sided flexible paste paper; the column type stress sensor is electrically connected with an external circuit through a lead. The invention has the advantages of convenient and fast use, difficult shedding, motion interference resistance, high resolution and high sensitivity.
Description
Technical Field
The invention relates to the technical field of wearable equipment, in particular to a disposable heart rate plaster.
Background
With the rapid development of social economy, the stress caused by life and survival continuously threatens the health of human beings, the abnormal heart rate of the human beings is often caused when the stress is too high and the mental stress is generated, and finally the abnormal heart rate for a long time can cause various diseases. Therefore, attention has been shifted from the field of food safety and medical care to the field of real-time monitoring of physical conditions. Various domestic and foreign enterprises and scientific research institutions develop various wearable devices in order to meet the increasing technical requirements, and particularly, the research on portable cardiotachometers draws extensive attention.
The heart rate meter on the market at present mainly regards wrist strap formula structure as the main part, assembles the wearable heart rate meter through the heart rate sensor of collocation different grade type. According to the detection principle, the heart rate sensor can be classified into a photoelectric type, a voltage-capacitance type and a voltage-resistance type, wherein the photoelectric type is most widely applied due to the advantages of non-invasion and non-contact, however, the degree of tightness of the wrist strap is difficult to master, measurement errors of the photoelectric type heart rate sensor are easily caused, and the discomfort of a wearer is caused by the fact that the degree of tightness causes too weak detection signals and too tight detection signals. Besides, since the photoelectric heart rate sensor measures heart rate by light reflection: according to the principle that blood vessels of the whole body of a human body have micro fluctuation when the heart beats, light beams are emitted to subcutaneous blood vessels, and periodic intensity change of reflected light is detected in real time, so that a pulse signal of the human body is obtained. When the sensor is used, measurement errors are easily caused by factors such as light interference caused by the environment, skin color of a wearer, sweat, fat thickness and the like, and once the sensor is abnormal in function, the whole heart rate meter needs to be replaced, so that the cost is high.
Therefore, the invention provides the disposable heart rate paste which can accurately measure in real time and ensure good wearing experience, and is an urgent need for the development of portable medical equipment.
Disclosure of Invention
Based on this, the invention aims to overcome the defects in the prior art and provide a disposable heart rate patch which has the advantages of convenience and rapidness in use, difficulty in falling off, motion interference resistance, high resolution and high sensitivity.
In order to achieve the purpose, the invention adopts the technical scheme that:
a disposable heart rate paste comprises single-sided flexible paste paper, a flat cable and a plurality of flexible conductive fiber bundle conducting wires, wherein the flexible conductive fiber bundles are stacked in a criss-cross mode, connected with the flat cable to form an array type stress sensor and attached to the single-sided flexible paste paper; the column type stress sensor is electrically connected with an external circuit through a lead.
Therefore, the disposable heart rate plaster utilizes the conductive fiber bundles with loose structures to construct the array type stress sensor based on the conductive fiber yarns. In the array type stress sensor, each stress sensing unit can be compressed under the action of external stress, so that each stress sensing unit has resistance reduction in different degrees, the magnitude of force applied to the different stress sensing units is sensed by measuring the change rate of the resistance of each stress sensing unit, and meanwhile, the conductivity of conductive fibers is utilized, so that the array type stress sensor can serve as a lead without an additional lead, and the complexity of a device is reduced. In addition, the single-sided flexible sticker enables the disposable heart rate sticker to be convenient and quick to use and not easy to fall off, so that wearing experience is improved.
In order to achieve better technical effects, a further technical improvement comprises that each of the flexible conductive fiber bundles comprises a plurality of loose structures, and the loose structures on the flexible conductive fiber bundles are crossly stacked with each other to form a plurality of stress sensing units.
In order to achieve better technical effects, further technical improvements include that each loose structure comprises a plurality of conductive fiber yarns, and a plurality of gaps exist among the conductive fiber yarns; the number of conducting current channels formed between the conductive fiber filaments in contact with each other on the surface of each stress sensing unit and the gaps between the conductive fiber filaments are correspondingly changed along with the change of the external force.
In order to achieve better technical effects, further technical improvements include that the conductive fiber filaments are made of carbon, metal or conductive polymer materials.
In order to obtain better technical effect, the further technical improvement further comprises that the number of the flat cables is four, and the four flat cables are arranged into a rectangular structure and are respectively connected with the plurality of flexible conductive fiber bundles.
In order to achieve better technical effects, a further technical improvement comprises that the conducting wires are connected with the flat cables.
In order to achieve better technical results, a further technical improvement comprises that the array stress sensor comprises 3 × 3 arrays of 9 stress sensing units.
In order to obtain better technical effect, the further technical improvement comprises that the back surface of the single-sided flexible paste paper is provided with an adhesive layer for being stuck on a human body.
Drawings
FIG. 1 is a schematic structural diagram of a disposable heart rate patch of the present invention;
FIG. 2 is a schematic structural diagram of a stress sensing unit according to the present invention;
FIG. 3 is a schematic structural view of a flexible conductive fiber bundle of the present invention;
FIG. 4 is a heart rate response graph of wrist pulse measured by the disposable heart rate patch of the present invention.
Detailed Description
To further illustrate the various embodiments, the invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references in mind, one of ordinary skill in the art will understand the principles of the invention and its attendant advantages.
Please refer to fig. 1 to fig. 4.
The disposable heart rate paste comprises single-sided flexible paste paper 10, a flat cable 20 and a plurality of flexible conductive fiber bundle leads 30, wherein the flexible conductive fiber bundles 30 are stacked in a criss-cross manner, connected with the flat cable 20 to form an array type stress sensor and attached to the single-sided flexible paste paper 10; the in-line strain sensors are electrically connected to an external circuit by wires 40. In addition, the conductive wires 40 are connected to the flat cable 20.
The plurality of flexible conductive fiber bundles 30 each include a plurality of loose structures 50, and the loose structures 50 on the plurality of flexible conductive fiber bundles 30 are stacked criss-cross to each other to form a plurality of stress sensing units 60.
Specifically, each of the plurality of loose structures 50 includes a plurality of conductive fiber filaments 51, and a plurality of gaps exist between the plurality of conductive fiber filaments 51; the number of conduction current paths formed between the conductive fiber wires 51 contacting each other on the surface of each stress sensing unit 60 and the gaps between the conductive fiber wires 51 are changed accordingly as the external force is changed. In addition, the conductive fiber 51 is made of carbon, metal or conductive polymer material.
In this embodiment, preferably, the number of the flat cables 20 is four, and the four flat cables 20 are arranged in a rectangular structure and are respectively connected to the plurality of flexible conductive fiber bundles 30. In addition, the array stress sensor comprises 3 x 3 arrays of 9 stress sensing cells 60. The back of the single-sided flexible patch 10 is provided with an adhesive layer for being stuck on a human body.
In addition, 3 × 3 stress sensing units 60 of the present invention are woven on the inner side of the single-sided flexible patch 10 to form a sensor array, which is attached to the wrist of a person to measure the pulse signal of the person in a stationary state. The test result is shown in fig. 4, under the stress action generated by the pulse, the resistance of the array sensor rapidly decreases, and shows periodic change along with the fluctuation of the pulse, the interval of each peak is about 0.75s (equivalent to a heart rate of 80/min), and is within the normal heart rate range of a human, and the stress action of the pulse can generate a resistance change rate of about 1.8%, and then the signal can be amplified and filtered through a circuit, so that a clearer and more intuitive heart rate signal can be achieved. Based on the above, the force variation response test and the heart rate test fully prove that the disposable cardiotachometer provided by the invention has certain feasibility in principle, can be matched with related circuits and textile manufacturing processes to expand application prospects, and can be manufactured into a high-sensitivity disposable cardiotachometer with a full textile material stress sensor by a reasonable and simple production process.
The working principle of the disposable heart rate patch of the invention is explained as follows:
firstly, a plurality of conductive fiber yarns 51 are adopted to form a conductive fiber bundle 30 with a loose structure 50, and a plurality of loose structures 50 of the conductive fiber bundle 30 are arranged to be correspondingly and crossly stacked one by one to form a plurality of stress sensing units 60; secondly, the conductive fiber bundle 30 is used as a lead wire to be electrically connected with a peripheral circuit, so that current flows through the stress sensing unit 60 with the loose structure 50; finally, under the action of different stresses, the resistance of each stress sensing unit 60 with the loose structure 50 is reduced to different degrees, the change rate of the resistance of each stress sensing unit 60 is in corresponding relation with the magnitude of the external force, and after the external force is removed, each stress sensing unit 60 can restore to the initial resistance value.
Compared with the prior art, the disposable heart rate plaster utilizes the conductive fiber bundles with loose structures to construct the array type stress sensor based on the conductive fiber yarns. In the array type stress sensor, each stress sensing unit can be compressed under the action of external stress, so that each stress sensing unit has resistance reduction in different degrees, the magnitude of force applied to the different stress sensing units is sensed by measuring the change rate of the resistance of each stress sensing unit, and meanwhile, the conductivity of conductive fibers is utilized, so that the array type stress sensor can serve as a lead without an additional lead, and the complexity of a device is reduced. In addition, the single-sided flexible sticker enables the disposable heart rate sticker to be convenient and quick to use and not easy to fall off, so that wearing experience is improved.
The above examples only show some embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the disposable heart rate patch of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (6)
1. A disposable heart rate paste which is characterized in that: the flexible conductive fiber bundles are stacked in a criss-cross mode, connected with the flat cable to form an array type stress sensor and attached to the single-sided flexible sticker; the column type stress sensor is electrically connected with an external circuit through a lead; the flexible conductive fiber bundles comprise a plurality of loose structures, and the loose structures on the flexible conductive fiber bundles are mutually crossly stacked in a crisscross mode to form a plurality of stress sensing units; the loose structures comprise a plurality of conductive fiber yarns, and a plurality of gaps are formed among the conductive fiber yarns; the number of conducting current channels formed between the conductive fiber filaments in contact with each other on the surface of each stress sensing unit and the gaps between the conductive fiber filaments are correspondingly changed along with the change of the external force.
2. The disposable heart rate plaster of claim 1, wherein: the conductive fiber yarn is made of carbon, metal or conductive polymer materials.
3. The disposable heart rate plaster of claim 1, wherein: the number of the flat cables is four, and the four flat cables are arranged into a rectangular structure and are respectively connected with the flexible conductive fiber bundles.
4. The disposable heart rate plaster of claim 1, wherein: the lead is connected with the flat cable.
5. The disposable heart rate plaster of claim 1, wherein: the array stress sensor may comprise 3 x 3 arrays of 9 stress sensing cells.
6. The disposable heart rate plaster of claim 1, wherein: the back of the single-sided flexible pasting paper is provided with an adhesive layer for being pasted on a human body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810399640.2A CN110403589B (en) | 2018-04-28 | 2018-04-28 | Disposable heart rate plaster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810399640.2A CN110403589B (en) | 2018-04-28 | 2018-04-28 | Disposable heart rate plaster |
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| CN110403589A CN110403589A (en) | 2019-11-05 |
| CN110403589B true CN110403589B (en) | 2022-04-01 |
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| CN201810399640.2A Active CN110403589B (en) | 2018-04-28 | 2018-04-28 | Disposable heart rate plaster |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111312041A (en) * | 2020-02-11 | 2020-06-19 | 上海享渔教育科技有限公司 | Flexible sticker of circuit that programming teaching was used |
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