CN219940975U - Thermotherapy wrist strap - Google Patents
Thermotherapy wrist strap Download PDFInfo
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- CN219940975U CN219940975U CN202320759984.6U CN202320759984U CN219940975U CN 219940975 U CN219940975 U CN 219940975U CN 202320759984 U CN202320759984 U CN 202320759984U CN 219940975 U CN219940975 U CN 219940975U
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- 238000000015 thermotherapy Methods 0.000 title claims abstract description 11
- 210000000707 wrist Anatomy 0.000 title description 17
- 238000002560 therapeutic procedure Methods 0.000 claims abstract description 64
- 239000000758 substrate Substances 0.000 claims abstract description 36
- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- 238000004806 packaging method and process Methods 0.000 claims abstract description 14
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 12
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims description 12
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical group C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 claims description 12
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 claims description 12
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 12
- 229920000642 polymer Polymers 0.000 claims description 11
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 4
- 238000005538 encapsulation Methods 0.000 claims description 4
- 229910052744 lithium Inorganic materials 0.000 claims description 4
- 239000010410 layer Substances 0.000 description 60
- 238000010438 heat treatment Methods 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 7
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- 206010061218 Inflammation Diseases 0.000 description 3
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- 229910052751 metal Inorganic materials 0.000 description 3
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- 206010020843 Hyperthermia Diseases 0.000 description 2
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- 230000036031 hyperthermia Effects 0.000 description 2
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- 239000004971 Cross linker Substances 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 208000007101 Muscle Cramp Diseases 0.000 description 1
- 208000002193 Pain Diseases 0.000 description 1
- 208000005392 Spasm Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
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- 239000003814 drug Substances 0.000 description 1
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- 238000005485 electric heating Methods 0.000 description 1
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- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
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- 210000001519 tissue Anatomy 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Landscapes
- Thermotherapy And Cooling Therapy Devices (AREA)
Abstract
The utility model discloses a thermotherapy wristband, and belongs to the technical field of wearable equipment. The thermal therapy wristband comprises a substrate layer, a thermal therapy unit, a power supply unit, a wireless charging unit, a dielectric layer and a packaging layer; the dielectric layer is arranged between the substrate layer and the packaging layer, and the power supply unit and the wireless charging unit are arranged between the substrate layer and the dielectric layer; the thermal therapy unit is arranged on the lower surface of the packaging layer and is positioned between the packaging layer and the dielectric layer; the wireless charging unit comprises a receiving end charging coil and a current conversion device, wherein the receiving end of the receiving end charging coil can be connected with the transmitting end of the charging equipment, the output end of the receiving end charging coil is electrically connected with the input end of the current conversion device, the output end of the current conversion device is electrically connected with the input end of the power supply unit, and the output end of the power supply unit is electrically connected with the input end of the thermal therapy unit. Wireless charging of the thermal therapy wristband can be realized, allowing for mobile use; solves the problem that the thermal therapy equipment in the prior art is unfavorable for carrying.
Description
Technical Field
The utility model relates to the technical field of wearable equipment, in particular to a thermal therapy wristband.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
With the increase of age and social pressure, fatigue is easy to occur on joints of all parts of a human body to cause strain, and the symptoms of joint pain, local inflammation and physical cold can be improved by a thermotherapy mode in the Western medicine. The thermal therapy device is mainly used for orthopaedics, generates local heat in a human body, promotes dissipation and absorption of local inflammation, and relieves pain and muscle spasm.
The common thermal therapy equipment in the current market is based on a heating component, most of the thermal therapy equipment works by adopting a power supply, the whole equipment is composed of mechanical rigidity and plane parts, has poor adaptability to human body structures, is not beneficial to carrying, and therefore, loses certain flexibility.
Therefore, research on light and thin, multifunctional wearable hyperthermia devices is increasing. And as a flexible electronic device, the variety of functions thereof requires high integration of more electronic components, further advancing the technology. In addition, because of the large tensile strain at joints and muscles generated during exercise, the stretchability and comfort of the device become indispensable research factors. At the same time, the device is to ensure stable performance even when stimulated by the external environment, which makes the manufacture of the electronic device demanding in terms of choice of materials and structural design.
According to the research results and information disclosed at home and abroad, research teams have proposed various flexible heater types, among which there are metal oxide thin film-based heaters, carbon nanostructure-based heaters, metal nanowire network-based heaters, metal mesh-based heaters, hybrid electrode-based heaters, and the like. For example, a stretchable transparent electrode of CuZr-MGs in the form of a nano rough network is prepared by an electrostatic spinning and co-pushing rod process, and the stretchable transparent electrode based on the magnesium nano rough network is used as a wearable and transparent thermal therapy patch by being transferred to an elastic substrate; the PDMS/AgNW/PVA transparent heater is prepared by embedding conductive silver (Ag) nanowires into an AgNW/PVA film as a heating element, and the temperature (20 omega/sq) of the film heater can be increased to 74 ℃ under the direct current bias of 5V by effective Joule heating, and the response time is 20S. Many research teams today have achieved many achievements in the manufacture of wearable hyperthermia devices, but the achievements of the research often do not meet the multiple functions that one pursues for the device.
Firstly, the metal nano rough film needs a plurality of steps to be processed and formed, the manufacturing process is complex, and the manufacturing cost is increased; the reasonable design of the equipment structure is not carried out, and the performance loss caused by strain, humidity and the like cannot be controlled; in addition, the thermal control and charging requirements of the part of the heaters studied at present are carried out by applying an additional circuit of a power supply or a micro-controller unit, and only a household charging interface can be used, so that inconvenience is brought to users in traveling and carrying.
In summary, most of the wearable thermotherapy devices currently rely on a power supply to supply power, so that the wearable thermotherapy devices are inconvenient to carry during traveling; in addition, the manufacturing process is complex, the time and the cost are high, and the problems of low light transmittance, poor stretchability, low integration density and long equipment response time exist.
Disclosure of Invention
Aiming at the defects existing in the prior art, the embodiment of the utility model aims to provide a thermal therapy wristband which can realize the thermal therapy function by generating heat; when the electric quantity of the battery is insufficient, the receiving end charging coil part of the thermal therapy wrist strap can be directly contacted with the transmitting end connected with the charging equipment, so that wireless charging is realized, and the user is allowed to use in a mobile mode.
In order to achieve the above object, the embodiment of the present utility model provides the following technical solutions:
a thermal therapy wristband comprises a substrate layer, a thermal therapy unit, a power supply unit, a wireless charging unit, a dielectric layer and a packaging layer;
the dielectric layer is arranged between the substrate layer and the packaging layer, and the power supply unit and the wireless charging unit are arranged on the upper surface of the substrate layer and are positioned between the substrate layer and the dielectric layer; the thermal therapy unit is arranged on the lower surface of the packaging layer and is positioned between the packaging layer and the dielectric layer;
the wireless charging unit comprises a receiving end charging coil and a current conversion device, wherein the receiving end of the receiving end charging coil can be connected with the transmitting end of the charging equipment, the output end of the receiving end charging coil is electrically connected with the input end of the current conversion device, the output end of the current conversion device is electrically connected with the input end of the power supply unit, and the output end of the power supply unit is electrically connected with the input end of the thermal therapy unit.
By adopting the technical scheme, the dielectric layer is used for isolating the thermal therapy unit, the power supply unit and the wireless charging unit, the thermal therapy unit can provide heat, the wireless power supply unit can realize wireless charging of the thermal therapy wrist strap, and the thermal therapy wrist strap is convenient for users to use.
Further, the thermal therapy unit comprises a thermal therapy coil and a toggle switch;
the first end of the power supply unit is electrically connected with the first end of the toggle switch, the second end of the toggle switch is electrically connected with the first end of the heat therapy coil, and the second end of the heat therapy coil is electrically connected with the second end of the power supply unit.
By adopting the technical scheme, the flexible switch of the heating state of the thermal therapy coil can be realized.
Preferably, the thermal therapy unit further comprises an indicator lamp connected in parallel with the thermal therapy coil.
By adopting the technical scheme, the working state of the thermal therapy coil can be clearly indicated.
Further, the device also comprises a temperature display unit, wherein the temperature display unit is arranged between the substrate layer and the dielectric layer;
the temperature display unit is electrically connected with the power supply unit.
By adopting the technical scheme, the heating condition of the thermal therapy unit is monitored in real time through the temperature display unit, so that scalding is avoided.
Preferably, the temperature display unit comprises a PLC temperature sensing chip and a temperature display lamp array, the PLC temperature sensing chip is arranged below the thermal therapeutic coil of the thermal therapeutic unit, and the temperature display lamp array is arranged at one end part of the substrate layer along the length direction;
the PLC temperature sensing chip is electrically connected with the temperature display lamp array.
Further, the receiving end charging coil is printed by a stretchable nano silver paste manufacturing material.
Further, the power supply unit includes a battery and a battery protection device;
the output end of the current conversion device is electrically connected with the input end of the battery protection device, the output end of the battery protection device is electrically connected with the input end of the battery, and the output end of the battery is electrically connected with the thermal therapy unit.
Preferably, the battery is a 3.7V high temperature resistant lithium battery.
Further, the substrate layer, the dielectric layer, and the encapsulation layer are made of a flexible transparent substrate.
Preferably, the flexible transparent substrate is a PDMS polymer or a PPA polymer.
The technical scheme provided by the embodiment of the utility model has at least the following technical effects or advantages:
1. according to the technical scheme provided by the utility model, under the condition that the circuit is conducted, the heat treatment coil generates heat, so that the tissue temperature is increased, the blood flow is further accelerated, and the diseases such as joint pain, local inflammation, physical cold and the like of a human body can be relieved.
2. According to the technical scheme provided by the utility model, when the electric quantity of the battery is insufficient, the receiving end charging coil part of the thermal therapy wrist strap can be directly contacted with the transmitting end connected with the charging equipment, so that wireless charging is realized, and a user is allowed to move and use even in the charging state of the wrist strap.
3. According to the technical scheme, the intelligent electric heating device is light, thin and transparent, can be charged wirelessly, can monitor heating temperature in real time, senses temperature through the temperature sensing part, transmits signals to the display lamp array, and outputs signals to display temperature, so that scalding of a user is avoided.
4. According to the technical scheme provided by the utility model, when the wrist strap is used, the wrist strap can be used for solving the problems of different wrist sizes of human bodies, tensile strain generated during movement, stimulation (such as humidity) of external environment and the like due to the excellent stretchability, perspiration and stable high conductivity of the wrist strap.
5. According to the technical scheme provided by the utility model, the wristband is integrally manufactured by a 3D printing method based on multi-material and multi-nozzle cooperation, and a printing table or other process assistance is not required to be replaced in the whole wristband printing process, so that the manufacturing time and cost are saved; the substrate layer, the packaging layer and the dielectric layer are made of PDMS polymer or PPA polymer, and the temperature heated by the thermal therapy coil can reach the thermal induction temperature of human skin within 5S, so that the response time is quick, and the thermal therapy coil has high stretchability and is suitable for different human bodies.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
FIG. 1 is a schematic view of a three-dimensional structure provided by the present utility model;
FIG. 2 is a schematic top view of the present utility model;
FIG. 3 is a schematic view of Joule heating performance of a thermal wristband according to an embodiment of the present utility model when it is under tensile strain;
FIG. 4 is a wireless charging diagram provided by the utility model;
FIG. 5 is a schematic illustration of the wearing provided by the present utility model;
fig. 6 is a temperature display diagram provided by the present utility model.
In the figure: 101. the device comprises a PDMS flexible substrate layer, 102, a PPA flexible substrate layer, 2, a flexible dielectric layer, 3, a flexible packaging layer, 4, a wireless charging unit, 401, a receiving end charging coil, 402, a current conversion device, 5, a power supply unit, 501-battery protection device, 502, a battery, 6, a heat treatment unit, 601, a heat treatment coil, 602, an LED lamp, 603, a toggle switch, 7, a temperature display unit, 701, a PLC temperature sensing chip, 702, a small LED lamp, 703, a small resistor, 8, an intra-layer electrical connection wire, 901, a vertical interconnection wire, 902 and a cross interconnection wire.
The mutual spacing or dimensions are exaggerated for the purpose of showing the positions of the various parts, and the schematic illustrations are used for illustration only.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.
Example 1
As described in the background art, most of the thermal therapeutic devices in the prior art rely on power supply to work, which is not beneficial to carry about; the utility model provides a thermotherapy wristband which has poor adaptability to human body structures and aims to solve the technical problems.
Referring to fig. 1-4, the present embodiment describes a thermal therapy wristband, which includes a flexible substrate layer, a power supply unit 5, a wireless charging unit 4, a flexible dielectric layer 2, a thermal therapy unit 6, and a flexible packaging layer 3, wherein the power supply unit 5 and the wireless charging unit 4 are arranged on the surface of the flexible substrate layer, and the thermal therapy unit 6 is arranged on the surface of the flexible dielectric layer 2; the wireless charging unit 4 is arranged at one end of the flexible substrate layer along the length direction, and the power supply unit 5 is arranged at the other end of the flexible substrate layer along the length direction; the power supply unit 5 includes a battery 502 and a battery protection device 501, the wireless charging unit 4 includes a receiving-end charging coil 401 and a current conversion device 402, and the heat treatment unit 6 includes a heat treatment coil 601, a toggle switch 603 and an indicator lamp.
The receiving end of the receiving end charging coil 401 may be in contact with the transmitting end of the charging device that generates the alternating magnetic field to generate the alternating current, and the output end of the receiving end charging coil 401 is electrically connected to the input end of the current conversion device 402 via the intra-layer electrical connection wire 8 and the vertical interconnection wire 901 to receive and convert the alternating current transmitted by the receiving end charging coil 401.
Wherein the intra-layer electrical connection wires 8 are used for electrical connection between devices in the same layer, and the wires are in the horizontal direction; the interlayer interconnection lines are used for electrical connection of devices between layers, and include vertical interconnection lines 901 and crossing interconnection lines 902, the vertical interconnection lines 901 being in a vertical direction, and the crossing interconnection lines 902 being in an oblique direction.
The output end of the current conversion device 402 is electrically connected with the input end of the battery protection device 501 through the intra-layer electrical connection wire 8, the output end of the battery protection device 501 is electrically connected with the input end of the battery 502 through the intra-layer electrical connection wire 8, the output end of the battery 502 is electrically connected with the first end of the toggle switch 603 through the intra-layer electrical connection wire 8, the second end of the toggle switch 603 is electrically connected with the first end of the thermal therapy coil 601 through the intra-layer electrical connection wire 8, and the second end of the thermal therapy coil 601 is electrically connected with the second end of the battery 502 through the intra-layer electrical connection wire 8.
The toggle switch 603 is used for switching on and off the thermal therapy circuit, and the indicator lamp is connected in parallel with the thermal therapy coil 601 and used for detecting the on-off of the thermal therapy circuit.
In this embodiment, the receiving-end charging coil 401, the intra-layer electrical connection wire 8 and the vertical interconnection wire 901 are made of stretchable nano silver paste, and based on an integrated 3D printing method of multi-material and multi-nozzle cooperation, the receiving-end charging coil 401 and the transmitting end of the charging device can generate alternating current through wireless contact; the battery protection device 501 is a Type-C lithium battery 502 charging plate 1A and is used for avoiding damage to the battery 502 caused by overcharge; the current conversion device 402 is a receiving end of the 5v 1a wireless charging module, and is configured to receive and convert an alternating current transmitted by the coil.
As shown in fig. 3, the heat therapeutic coil 601 can reach about 43 ℃ quickly after being electrified; when the wrist strap is under tensile strain, the temperature change is small as can be seen from infrared thermal imaging, and further the thermal therapy performance of the wrist strap is proved to be stable under the motion state. The tensile nano silver paste has excellent conductivity, and stable electrical connection among units, layers and layers.
Specifically, as shown in fig. 4, a receiving end charging wire of the wrist strap is in wireless contact with a transmitting end of the charger baby, the wrist strap starts to be charged, and at the moment, the battery protection device 501 lights a red light; when the battery protection device 501 lights up, it indicates that the wristband battery 502 is full.
In this embodiment, the battery 502 is a 3.7V high temperature resistant lithium battery 502, and the bolus of the thermal therapeutic coil 601 is designed as a serpentine curve.
Example two
The embodiment is different from other embodiments in that the temperature display device further comprises a temperature display unit 7, wherein the temperature display unit 7 is arranged on the flexible substrate layer and is positioned on one side of the power supply unit 5; the temperature display unit 7 includes a PLC temperature sensing chip 701 and a temperature display lamp array, where the temperature display lamp array is a temperature display lamp array formed by a small LED lamp 702 and a small resistor 703 in the prior art, and the embodiment is not improved, and is not described herein.
The PLC temperature sensing chip 701 is installed below the thermo-therapeutic coil 601, and the thermo-therapeutic coil 601 and the PLC temperature sensing chip 701 are isolated by a dielectric layer. The temperature display lamp array is arranged at one end part of the substrate layer along the length direction; the PLC temperature sensing chip 701 and the temperature display lamp array are electrically connected through the inner interconnection wire 8, the PLC temperature sensing chip 701 and the temperature display lamp array are respectively electrically connected with the battery 502 through the cross interconnection wire 902, and the battery 502 supplies power for the PLC temperature sensing chip 701 and the temperature display lamp array.
The PLC temperature sensing chip 701 collects temperature information of the thermal therapy coil 601 and transmits the temperature information to the temperature display lamp array for display.
As shown in fig. 5-6, the wrist strap is worn on the wrist, the toggle switch 603 of the thermal therapy unit 6 is toggled, the circuit is turned on, the LED lamp 602602 of the thermal therapy unit 6 is turned on at the moment, the thermal therapy coil 601 releases temperature, the PLC senses the temperature and transmits data to the temperature display lamp array, the temperature is displayed by the temperature display lamp array, and the temperature display lamp array sequentially displays the numbers "4" and "3", which indicates that the heat released by the thermal therapy coil 601 reaches about 43 ℃.
In the embodiment, the model of the PLC temperature sensing chip 701 is PLC16LF1509-I/ML, and pins and wires of the PLC temperature sensing chip 701 are printed by stretchable nano silver paste.
Example III
This embodiment is different from the other embodiments in that the flexible substrate layer, the flexible dielectric layer 2 and the flexible encapsulation layer 3 are made of flexible transparent base materials and are designed for strain isolation (i.e. high-low modulus partition is adopted), and the receiving-end charging coil 401, the thermal therapy coil 601, the intra-layer electrical connection wires 8 and the inter-layer interconnection wires are all manufactured by printing stretchable nano silver paste.
In order to further ensure stretching, ventilation and adhesion at the thermal therapy coil 601, the PPA flexible substrate layer 102 made of PPA polymer with better ventilation and adhesion is used as the substrate layer at the thermal therapy coil 601, and the PDMS flexible substrate layer 101 made of PDMS polymer is used as the other parts.
The substrate layer, the encapsulation layer, where the electronic components are placed is made of a high modulus PDMS polymer made of PDMS monomers cross-linker = 5:1, and the other areas of the substrate layer and the packaging layer are made of low-modulus PDMS polymer, wherein the low-modulus PDMS polymer is prepared from PDMS monomers, and the cross-linking agent=15: 1, and mixing the materials in proportion.
While the foregoing description of the embodiments of the present utility model has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the utility model, but rather, it is intended to cover all modifications or variations within the scope of the utility model as defined by the claims of the present utility model.
Claims (10)
1. The thermal therapy wristband is characterized by comprising a substrate layer, a thermal therapy unit, a power supply unit, a wireless charging unit, a dielectric layer and a packaging layer;
the dielectric layer is arranged between the substrate layer and the packaging layer, and the power supply unit and the wireless charging unit are arranged on the upper surface of the substrate layer and are positioned between the substrate layer and the dielectric layer; the thermal therapy unit is arranged on the lower surface of the packaging layer and is positioned between the packaging layer and the dielectric layer;
the wireless charging unit comprises a receiving end charging coil and a current conversion device, wherein the receiving end of the receiving end charging coil can be connected with the transmitting end of the charging equipment, the output end of the receiving end charging coil is electrically connected with the input end of the current conversion device, the output end of the current conversion device is electrically connected with the input end of the power supply unit, and the output end of the power supply unit is electrically connected with the input end of the thermal therapy unit.
2. The thermal therapy wristband according to claim 1, wherein the thermal therapy unit comprises a thermal therapy coil and a toggle switch;
the first end of the power supply unit is electrically connected with the first end of the toggle switch, the second end of the toggle switch is electrically connected with the first end of the heat therapy coil, and the second end of the heat therapy coil is electrically connected with the second end of the power supply unit.
3. The thermal therapy wristband according to claim 2, wherein the thermal therapy unit further comprises an indicator light connected in parallel with the thermal therapy coil.
4. The thermal wristband according to claim 1, further comprising a temperature display unit disposed between the dielectric layer and the backing layer;
the temperature display unit is electrically connected with the power supply unit.
5. The thermal therapy wristband according to claim 4, wherein the temperature display unit comprises a PLC temperature sensing chip and a temperature display lamp array, the PLC temperature sensing chip is disposed below the thermal therapy coil of the thermal therapy unit, and the temperature display lamp array is disposed at one end of the substrate layer in the length direction;
the PLC temperature sensing chip is electrically connected with the temperature display lamp array.
6. The thermal wristband according to claim 1, wherein the receiving end charging coil is made of stretchable nano silver paste.
7. The thermal wristband according to claim 1, wherein the power supply unit comprises a battery and a battery protection device;
the output end of the current conversion device is electrically connected with the input end of the battery protection device, the output end of the battery protection device is electrically connected with the input end of the battery, and the output end of the battery is electrically connected with the thermal therapy unit.
8. The thermal wristband according to claim 7, wherein the battery is a 3.7V high temperature resistant lithium battery.
9. The thermal wristband of claim 1 wherein the substrate layer, the dielectric layer and the encapsulation layer are made of a flexible transparent substrate.
10. The thermal wristband of claim 9, wherein the flexible transparent substrate is PDMS polymer or PPA polymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320759984.6U CN219940975U (en) | 2023-04-07 | 2023-04-07 | Thermotherapy wrist strap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320759984.6U CN219940975U (en) | 2023-04-07 | 2023-04-07 | Thermotherapy wrist strap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219940975U true CN219940975U (en) | 2023-11-03 |
Family
ID=88552379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320759984.6U Active CN219940975U (en) | 2023-04-07 | 2023-04-07 | Thermotherapy wrist strap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219940975U (en) |
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2023
- 2023-04-07 CN CN202320759984.6U patent/CN219940975U/en active Active
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