CN114224306A - Heart rate detection sensor, protective clothing and manufacturing method of sensor - Google Patents
Heart rate detection sensor, protective clothing and manufacturing method of sensor Download PDFInfo
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- CN114224306A CN114224306A CN202111334697.2A CN202111334697A CN114224306A CN 114224306 A CN114224306 A CN 114224306A CN 202111334697 A CN202111334697 A CN 202111334697A CN 114224306 A CN114224306 A CN 114224306A
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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
- A61B5/02438—Detecting, measuring or recording pulse rate or heart rate with portable devices, e.g. worn by the patient
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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
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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
- A61B5/6804—Garments; Clothes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/12—Manufacturing methods specially adapted for producing sensors for in-vivo measurements
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/16—Details of sensor housings or probes; Details of structural supports for sensors
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/16—Details of sensor housings or probes; Details of structural supports for sensors
- A61B2562/164—Details of sensor housings or probes; Details of structural supports for sensors the sensor is mounted in or on a conformable substrate or carrier
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Cardiology (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
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Abstract
The invention discloses a heart rate detection sensor, protective clothing and a manufacturing method of the heart rate detection sensor, wherein the heart rate detection sensor comprises a first packaging layer; the first electrode layer is arranged on the lower surface of the first packaging layer; the first pressure sensitive layer and the second pressure sensitive layer are sequentially arranged on the lower surface of the first electrode layer, and the first pressure sensitive layer and/or the second pressure sensitive layer are/is made of water-soluble polymer hydrogel and added with nanoparticles; the second electrode layer is arranged on the lower surface of the second pressure sensitive layer; and the second packaging layer is arranged on the lower surface of the second electrode layer. The heart rate detection sensor provided by the embodiment of the invention is made of hydrogel as a substrate, and has the advantages of good biocompatibility, environment friendliness, high comfort, simple structure, low manufacturing cost and wide application prospect.
Description
Technical Field
The invention relates to the technical field of sensors, in particular to a heart rate detection sensor, protective clothing and a manufacturing method of the sensor.
Background
The environment that present miner worked in the pit has the characteristics of high dust, high noise etc, and the colliery occupational disease that causes has caused very big influence to workman's health status from this, simultaneously because at present to workman self operating condition like drinking wine, tired, breathe not smooth and lack necessary monitoring and early warning like sudden events such as cardiac arrest, miner worked under the not good condition of state, caused very big potential safety hazard, the very easy production accident that takes place.
In the related technology, the method for monitoring the heart rate is generally adopted to judge the vital signs of workers, the existing method for monitoring the heart rate of underground miners mainly comprises a photoplethysmography method, a blood oxygenation method and an electrocardiosignal method, but the photoplethysmography method has high dependence on blood components, and the people are required to keep a static state in the detection process, so that the method is easily influenced by a light source and has higher cost; the blood oxygen method needs to clamp fingers in the detection process, has continuous oppression on a human body, is poor in comfort and high in cost; the electrocardiosignal method needs to use electrodes to detect electric signals on the surface of human skin, the contact impedance of the electrodes and the human body is not matched, large capacitive coupling interference exists, the electrodes need to be connected to multiple parts of the human body during detection, and the electrocardiosignal method is heavy in equipment, difficult to operate, poor in portability and complex in calculation.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the embodiment of the invention provides a heart rate detection sensor which has good biocompatibility and environmental friendliness and is high in comfort.
The embodiment of the invention also provides protective clothing with the heart rate detection sensor.
The embodiment of the invention also provides a preparation method of the sensor.
The heart rate detection sensor comprises a first packaging layer; the first electrode layer is arranged on the lower surface of the first packaging layer; the first pressure sensitive layer and the second pressure sensitive layer are sequentially arranged on the lower surface of the first electrode layer, and the first pressure sensitive layer and/or the second pressure sensitive layer are/is made of water-soluble polymer hydrogel and added with nanoparticles; the second electrode layer is arranged on the lower surface of the second pressure sensitive layer; and the second packaging layer is arranged on the lower surface of the second electrode layer.
The heart rate detection sensor provided by the embodiment of the invention is made of hydrogel as a substrate, and has the advantages of good biocompatibility, environment friendliness, high comfort, simple structure, low manufacturing cost and wide application prospect.
In some embodiments, the polymer hydrogel is a polyvinyl alcohol hydrogel, a polyvinyl pyrrolidone hydrogel, or a polyacrylamide hydrogel.
In some embodiments, the nanoparticles are silica nanoparticles, calcium carbonate nanoparticles, or titanium dioxide nanoparticles.
In some embodiments, the first pressure sensitive layer has a thickness of 10-200 μm and the second pressure sensitive layer has a thickness of 10-200 μm.
In some embodiments, the material of the first encapsulation layer is Ecoflex or polyethylene terephthalate and the material of the second encapsulation layer is Ecoflex or polyethylene terephthalate.
In some embodiments, the first electrode layer is a silver electrode layer or an aluminum electrode layer, and the second electrode layer is a silver electrode layer or an aluminum electrode layer.
In some embodiments, the first electrode layer has a thickness of 50nm to 500nm and the second electrode layer has a thickness of 50nm to 500 nm.
The protective garment of the embodiment of the second aspect of the invention comprises a heart rate detection sensor as described in any of the embodiments above.
The method for manufacturing the sensor in the embodiment of the third aspect of the invention comprises the following steps:
putting 5% glycerol, 5% silicon oxide nanoparticles, 5% sodium chloride solution and 10% polyvinyl alcohol solution into a container, mixing, dispersing the mixture by using ultrasound until no obvious substrate is deposited, and magnetically stirring for 3 hours to obtain a pre-solution;
placing the preposed solution into a mold for molding, freezing for 24 hours at the temperature of minus 20 ℃, and unfreezing for 2 hours at room temperature to obtain a first pressure sensitive layer and a second pressure sensitive layer;
processing a first electrode layer on the upper surface of the first pressure sensitive layer, and processing a second electrode layer on the lower surface of the second pressure sensitive layer;
bonding the first pressure sensitive layer and the second pressure sensitive layer by using a hot pressing method;
and a first packaging layer is pasted on the upper surface of the first electrode layer, and a second packaging layer is pasted on the lower surface of the second electrode layer.
In some embodiments, the method for processing the first electrode layer on the upper surface of the first pressure sensitive layer or the second electrode layer on the lower surface of the second pressure sensitive layer is electron beam evaporation coating, 3D printing, screen printing or metal tape bonding.
Drawings
FIG. 1 is a schematic diagram of a heart rate detection sensor of an embodiment of the present invention;
FIG. 2 is a schematic flow diagram of a portion of a method of making a sensor according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart of another portion of a method of making a sensor according to an embodiment of the present invention.
Reference numerals:
the heart rate detection sensor comprises a heart rate detection sensor 100, a first packaging layer 101, a first electrode layer 102, a first pressure sensitive layer 103, a second pressure sensitive layer 104, a second electrode layer 105 and a second packaging layer 106.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The heart rate detection sensor 100 of the embodiment of the present invention is described below with reference to the drawings.
As shown in fig. 1, a heart rate detection sensor 100 according to an embodiment of the present invention includes a first encapsulation layer 101, a first electrode layer 102, a first pressure-sensitive layer 103, a second pressure-sensitive layer 104, a second electrode layer 105, and a second encapsulation layer 106, which are stacked in this order from top to bottom.
Wherein the first pressure sensitive layer 103 and/or the second pressure sensitive layer 104 are made of water-soluble polymer hydrogel and added with nanoparticles, on one hand, the heart rate detection sensor 100 made by using hydrogel as a substrate has good flexibility, can contact with the surface of the skin well to obtain clear heart rate signals, has good electrical safety, can be equipped on protective clothing to detect the heart rate of workers in the well, does not cause discomfort to users in the detection process, on the other hand, a pressure sensitive layer made of water-soluble polymer hydrogel can be degraded in aqueous solution, thereby avoiding environmental pollution, meanwhile, the nano particles are doped, so that the sensitivity and the mechanical property of the sensor can be effectively improved, the current physical health condition of miners is judged by extracting the characteristics of pressure signals, and early warning is given to drinking and fatigue states.
The heart rate detection sensor 100 of the embodiment of the invention is made of hydrogel as a substrate, and has the advantages of good biocompatibility, environmental friendliness, high comfort, simple structure, low manufacturing cost and wide application prospect.
The polymer hydrogel is polyvinyl alcohol hydrogel, polyvinylpyrrolidone hydrogel or polyacrylamide hydrogel, preferably polyvinyl alcohol hydrogel, has good biocompatibility, high elasticity and high strength, and is very suitable for serving as a substrate material of a sensor.
The nano particles are silicon oxide nano particles, calcium carbonate nano particles or titanium dioxide nano particles, preferably silicon oxide nano particles, and the silicon oxide nano particles are added to the pressure sensitive layer, so that the sensitivity and the mechanical property of the sensor can be effectively improved, and the performance of the heart rate detection sensor 100 is improved.
In some embodiments, the first pressure sensitive layer 103 has a thickness of 10-200 μm and the second pressure sensitive layer 104 has a thickness of 10-200 μm. For example, the first pressure sensitive layer 103 may be 50 μm, 100 μm, or 150 μm, the second pressure sensitive layer 104 may be 50 μm, 100 μm, or 150 μm, and preferably, the first pressure sensitive layer 103 and the second pressure sensitive layer 104 are both 100 μm thick, whereby high sensitivity of the heart rate detection sensor 100 may be ensured.
The material of the first encapsulation layer 101 is Ecoflex or polyethylene terephthalate, and the material of the second encapsulation layer 106 is Ecoflex or polyethylene terephthalate, and is preferably a film made of polyethylene terephthalate material.
It should be noted that Ecoflex is a platinum-catalyzed silicone produced by Smooth-On, is a simple and versatile silicone material, has good water resistance relative to polymers stable to the surrounding environment, and is suitable for use in the preparation of stress sensors or pressure sensors.
In some embodiments, the first electrode layer 102 and the second electrode layer 105 are both metal electrode layers made of silver or aluminum, preferably silver electrode layers.
The thickness of the first electrode layer 102 is 50nm to 500nm, the thickness of the second electrode layer 105 is 50nm to 500nm, for example, the thickness of the first electrode layer 102 may be 100nm, 200nm, 300nm or 400nm, the thickness of the second electrode layer 105 may be 100nm, 200nm, 300nm or 400nm, preferably, the thickness of the first electrode layer 102 and the thickness of the second electrode layer 105 are both 100nm, and in combination with the above, the thickness of the first pressure sensitive layer 103 and the thickness of the second pressure sensitive layer 104 are both preferably 100 μm, and the total thickness of the heart rate detection sensor 100 of the embodiment of the invention is only 300-.
The protective clothing of the embodiment of the second aspect of the invention comprises the heart rate detection sensor 100 of any one of the above embodiments, and the protective clothing equipped with the heart rate detector can obtain the heart rate signal of a user by contacting the heart rate detection sensor 100 with the skin surface while isolating external dust, does not cause any discomfort to the user in the detection process, and has good wearability.
As shown in fig. 2 and 3, a method for manufacturing a sensor according to an embodiment of the third aspect of the present invention includes the steps of:
1) putting 5% glycerol, 5% silicon oxide nanoparticles, 5% sodium chloride solution and 10% polyvinyl alcohol solution into a container for mixing, dispersing the mixture by using ultrasound until no obvious substrate is deposited, and magnetically stirring for 3 hours to obtain a front solution, wherein the glycerol can improve the moisture retention performance of the sensor;
2) placing the pre-solution into a mold for molding, placing the mold into a refrigerator, freezing for 24 hours at the temperature of-20 ℃, and then unfreezing for 2 hours at room temperature to obtain a physically crosslinked and degradable first pressure sensitive layer 103 and a second pressure sensitive layer 104;
3) processing a first electrode layer 102 on the upper surface of a first pressure sensitive layer 103, and processing a second electrode layer 105 on the lower surface of a second pressure sensitive layer 104;
4) bonding the first pressure sensitive layer 103 and the second pressure sensitive layer 104 by using a thermocompression method;
5) and pasting a first packaging layer 101 on the upper surface of the first electrode layer 102, and pasting a second packaging layer 106 on the lower surface of the second electrode layer 105 to finish the manufacture of the sensor, wherein the first packaging layer 101 and the second packaging layer 106 are used for protecting the electrode layers.
In step 3, the method for processing the first electrode layer 102 on the upper surface of the first pressure sensitive layer 103 or the second electrode layer 105 on the lower surface of the second pressure sensitive layer 104 is any one of an electron beam evaporation coating, 3D printing, screen printing and metal tape bonding, which can be selected according to the process requirements.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A heart rate detection sensor, comprising:
a first encapsulation layer;
the first electrode layer is arranged on the lower surface of the first packaging layer;
the first pressure sensitive layer and the second pressure sensitive layer are sequentially arranged on the lower surface of the first electrode layer, and the first pressure sensitive layer and/or the second pressure sensitive layer are/is made of water-soluble polymer hydrogel and added with nanoparticles;
the second electrode layer is arranged on the lower surface of the second pressure sensitive layer;
and the second packaging layer is arranged on the lower surface of the second electrode layer.
2. The heart rate detection sensor of claim 1, wherein the polymer hydrogel is a polyvinyl alcohol hydrogel, a polyvinyl pyrrolidone hydrogel, or a polyacrylamide hydrogel.
3. The heart rate detection sensor of claim 1, wherein the nanoparticles are silica nanoparticles, calcium carbonate nanoparticles, or titanium dioxide nanoparticles.
4. The heart rate detection sensor of claim 1, wherein the first pressure sensitive layer has a thickness of 10-200 μ ι η and the second pressure sensitive layer has a thickness of 10-200 μ ι η.
5. A heart rate detection sensor according to claim 1, wherein the material of the first encapsulation layer is Ecoflex or polyethylene terephthalate and the material of the second encapsulation layer is Ecoflex or polyethylene terephthalate.
6. The heart rate detection sensor according to claim 5, wherein the first electrode layer is a silver electrode layer or an aluminum electrode layer, and the second electrode layer is a silver electrode layer or an aluminum electrode layer.
7. The heart rate detection sensor of claim 5, wherein the first electrode layer has a thickness of 50nm to 500nm and the second electrode layer has a thickness of 50nm to 500 nm.
8. Protective clothing, characterized in that it comprises a heart rate detection sensor according to any one of claims 1-7.
9. A method of making a sensor, comprising:
putting 5% glycerol, 5% silicon oxide nanoparticles, 5% sodium chloride solution and 10% polyvinyl alcohol solution into a container, mixing, dispersing the mixture by using ultrasound until no obvious substrate is deposited, and magnetically stirring for 3 hours to obtain a pre-solution;
placing the preposed solution into a mold for molding, freezing for 24 hours at the temperature of minus 20 ℃, and unfreezing for 2 hours at room temperature to obtain a first pressure sensitive layer and a second pressure sensitive layer;
processing a first electrode layer on the upper surface of the first pressure sensitive layer, and processing a second electrode layer on the lower surface of the second pressure sensitive layer;
bonding the first pressure sensitive layer and the second pressure sensitive layer by using a hot pressing method;
and a first packaging layer is pasted on the upper surface of the first electrode layer, and a second packaging layer is pasted on the lower surface of the second electrode layer.
10. The method of claim 9, wherein the first electrode layer is formed on the upper surface of the first pressure-sensitive layer or the second electrode layer is formed on the lower surface of the second pressure-sensitive layer by electron beam evaporation, 3D printing, screen printing or metal tape bonding.
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| CN202111334697.2A CN114224306B (en) | 2021-11-11 | 2021-11-11 | Heart rate detecting sensor, protective clothing and method for manufacturing sensor |
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| CN202111334697.2A CN114224306B (en) | 2021-11-11 | 2021-11-11 | Heart rate detecting sensor, protective clothing and method for manufacturing sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115683403A (en) * | 2022-11-08 | 2023-02-03 | 大连海事大学 | Self-driven hydrogel ionic pressure sensor and manufacturing method thereof |
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| US20110160426A1 (en) * | 2008-04-14 | 2011-06-30 | Philipps-Universitat Marburg | Hydrolytically decomposable ionic copolymers |
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