Acupuncture electronic skin for practice and preparation method thereof
Through the composite structure of flexible insulating unit and conductive unit and the main control unit reading signal method, the problem of difficulty in accurately measuring the needle depth in traditional acupuncture technology is solved, real-time depth measurement and feedback of acupuncture electronic skin is realized, and practitioners are enhanced mastery of acupuncture techniques.
Patent Information
- Application Number
- CN202411786633.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-02-18
AI Technical Summary
Traditional acupuncture techniques rely on experience and feel, making it difficult to accurately measure the depth and position of the needle, especially for beginners and non-professionals.
The flexible insulating unit and conductive unit are used to combine the electronic skin in sequence, and the conductive unit is connected to the DuPont wire through soldering, and the main control unit is used to read the high and low level signals of the conductive unit to judge the puncture depth of the acupuncture needle in real time.
The accuracy of depth measurement of acupuncture needles is achieved, and real-time feedback is provided to help practitioners better master acupuncture techniques.
Smart Images
Figure CN119479420A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the field of flexible sensing technology, and relates to an acupuncture electronic skin for practicing and a preparation thereof, and specifically relates to a new type of acupuncture electronic skin for practicing with a flexible insulating unit and a conductive unit and a preparation method thereof. Background Art
[0002] Acupuncture is loved by people all over the world for its outstanding therapeutic effects. As people's recognition of traditional medicine and comprehensive medicine increases, acupuncture, as an ancient and effective treatment method, has attracted more and more attention and acceptance. The World Health Organization attaches great importance to the development of acupuncture, and has drafted, formulated, published and promoted a number of programs and documents, including "International Acupuncture Terminology Standards", "Acupuncture Clinical Research Guidelines", "Acupuncture Basic Training and Safety Guidelines", and the current evaluation of dominant diseases. Traditional Chinese medicine acupuncture is a national quintessence and national treasure. Intangible cultural heritage protects it as a cultural treasure and is also a bridge to connect with the international community. If acupuncture culture is not inherited, it will become a sourceless water, but the root of inheritance lies in its efficacy. Therefore, improving acupuncture technology is the root of the sustainable development of acupuncture culture. Traditional acupuncture relies on the experience and feel of the acupuncturist to judge the depth and position of the needle. Electronic skin technology can accurately measure the depth and pressure of the needle by using highly sensitive sensors, which is especially important for beginners and non-professionals. This technology can provide real-time feedback to help practitioners better master acupuncture techniques. Summary of the invention
[0003] The purpose of the present invention is to provide an acupuncture electronic skin for practice and a preparation method thereof, which can provide real-time depth data and simulate the feeling of acupuncture on the human body to help practitioners better master acupuncture techniques. The present invention can accurately measure the depth of the needle, which is particularly important for beginners and non-professionals. The present invention can provide real-time feedback to help practitioners better master acupuncture techniques.
[0004] In order to solve the technical problem of the present invention, a technical solution is proposed: a method for preparing an acupuncture electronic skin for practice, comprising a flexible insulating unit and a conductive unit that are compositely arranged in sequence; wherein the top layer of the acupuncture electronic skin for practice is an insulating layer, the bottom layer is an insulating layer, and the middle layer is stacked in sequence by conductive layer units and insulating units, and the number of layers of conductive units and insulating units is increased or decreased according to the depth requirements of the practice.
[0005] Preferably, each layer of conductive unit is connected to a DuPont line by soldering, the other end of the DuPont line is connected to the main control unit, the LCD display is connected to the main control unit by means of the DuPont line, the flexible conductive unit of the uppermost layer of the electronic skin is connected to the high-level output port of the main control unit, and the flexible conductive units of the lower layer are respectively connected to the detection input port of the main control unit. The overall thickness of the electronic skin is 3 mm-3 cm, the thickness of the insulating unit and the conductive unit is 0.1 mm to 1 mm, and the number of layers of the electronic skin is set according to the thickness of the electronic skin, the insulating unit, and the conductive unit. The number of insulating unit layers is 3-81 layers, the number of conductive unit layers is 2-80 layers, and the overall number of layers of the electronic skin is 5-161 layers.
[0006] Preferably, the flexible insulating unit is one or more of polydimethylsiloxane, hydrogenated styrene-butadiene block copolymer, platinum-catalyzed silicone rubber, polyimide, polyethylene terephthalate, chitosan, gelatin, agarose, guar gum, polyethylene glycol, polyacrylic acid, and polyvinyl alcohol; the conductive unit is a conductive hydrogel, wherein the conductive material doped in the hydrogel is one or more of carbon-based materials, conductive polymers, metals, and metal oxides.
[0007] Preferably, in the method for preparing the acupuncture electronic skin for practicing, the conductive unit is a metal sheet, which is one or more of gold, silver, copper, and aluminum.
[0008] Preferably, the conductive unit is a conductive hydrogel, wherein the hydrogel is doped with a carbon-based material using one or more of graphene, redox graphene, carbon nanotubes, multi-walled carbon nanotubes, and graphene oxide; or the hydrogel is doped with a conductive polymer polypyrrole, polyaniline, aniline oligomer (oligoaniline), polythiophene, poly(3,4-ethylenedioxythiophene), poly(p-styrene), poly(3,4-ethylenedioxythiophene)-poly(styrene sulfonate) (PEDOT:PSS).
[0009] Preferably, the conductive unit is a conductive hydrogel, wherein the hydrogel is doped with one or more of the metals gold, silver, copper, platinum, iron, and chromium.
[0010] Preferably, the conductive unit is a conductive hydrogel, wherein the hydrogel is doped with one or more of the metal oxides ferrosoferric oxide, zinc oxide, titanium dioxide, and zirconium dioxide.
[0011] Preferably, the method comprises the following steps: pouring polydimethylsiloxane prepolymer into a prepared mold with a length of 20 mm, a width of 20 mm, and a height of 0.5 mm, placing the mold on a heating table, heating the mold at 60°C for 6 hours, and removing the cured PDMS to use the mold as an insulating unit of the electronic skin;
[0012] A copper foil with a length of 28 mm, a width of 16 mm, and a thickness of 50 μm was used as the conductive unit of the electronic skin. It was stacked in the order of one insulating unit and one conductive unit. The top and bottom layers were both insulating units. The number of insulating unit layers was set to 13, and the number of conductive unit layers was set to 12. After stacking, it was fixed with tape on the front, back, left, and right sides of the electronic skin.
[0013] Each layer of copper foil is connected to the exposed copper wire end of a connecting wire with 12-port XH2.54 mm terminals at one end and exposed copper wire at the other end by soldering. The XH2.54 mm terminals are connected to the main control unit by plugging to facilitate subsequent replacement operations. The 2.2-inch LCD display is connected to the main control unit by means of DuPont cables.
[0014] The flexible conductive units on the uppermost layer of the electronic skin are connected to the high-level output port of the main control unit, and the flexible conductive units on the lower layer are respectively connected to the detection input ports of the main control unit.
[0015] In order to solve the technical problem of the present invention, another technical solution is proposed: an acupuncture electronic skin for practice prepared by any method.
[0016] The present invention comprises a flexible insulating unit and a conductive unit which are arranged in sequence. The principle is that the flexible conductive unit of the uppermost layer is connected to the high-level output port of the main control unit, and the flexible conductive units of the lower layer are respectively connected to the detection input port of the main control unit. When the acupuncture needle is inserted into the flexible conductive unit of the lower layer of the acupuncture electronic skin for practice, since the acupuncture needle is a metal conductor, the flexible conductive unit of the uppermost layer and the flexible conductive unit of the lower layer will be connected. The main control unit can judge the current depth data of the acupuncture needle insertion at any time by reading the high and low level signals of the flexible conductive unit of the lower layer.
[0017] Among them, the flexible insulation unit includes a flexible insulation unit and an upper layer and a lower layer of a conductive unit arranged on the flexible insulation unit; the conductive unit includes a conductive unit and an upper layer and a lower layer of a flexible insulation unit arranged on the conductive unit.
[0018] Beneficial effects of the present invention:
[0019] Traditional acupuncture relies on the acupuncturist's experience and feel to judge the depth and position of the needle. The present invention can accurately measure the depth of the needle, which is particularly important for beginners and non-professionals. The present invention can provide real-time feedback to help practitioners better master acupuncture techniques.
[0020] When the acupuncture needle penetrates the flexible conductive unit of the lower layer of the acupuncture electronic skin for practice, since the acupuncture needle is a metal conductor, the uppermost flexible conductive unit will be connected to the lower flexible conductive unit, and the main control unit can read the high and low level signals of the lower flexible conductive unit. Once the high level signal is read, it means that the acupuncture needle has penetrated the conductive layer, and the current penetration depth data of the acupuncture needle can be judged in real time and displayed on the display screen. For example, when the acupuncture needle penetrates the fourth layer of conductive units, since the first layer of conductive units is connected to the high level output port of the main control unit, the acupuncture needle is a conductor, which will make the second, third, and fourth layers of conductive units all high level, and connected to the detection input port of the main control unit. Each layer of conductive units is connected to the input detection port of the main control unit. Based on this, it can be judged which layers of conductive units are penetrated. According to the set priority relationship, the lower layer of conductive units has a higher priority than the upper layer of conductive units. When the fourth layer is penetrated, the main control unit controls the display screen to display the current depth data of the fourth layer of conductive units, which is 2mm. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of the flexible insulating unit and the conductive unit stacked in sequence.
[0022] Figure 2 This is a schematic diagram of the connection between the electronic skin, control unit and display screen.
[0023] Figure 3 This is a depth data graph displayed on the display screen when the electronic skin obtained in Example 1 of the present invention is pricked by a needle.
[0024] Figure 4 This is the depth data image obtained in Example 2 of the present invention.
[0025] Figure 5 This is a physical picture of the electronic skin obtained in Example 3 of the present invention. DETAILED DESCRIPTION
[0026] The present invention is further described below in conjunction with the examples. The following examples are only used to more clearly illustrate the performance of the present invention, and are not limited to the following examples.
[0027] Example 1
[0028] Pour polydimethylsiloxane (PDMS) prepolymer into a prepared mold with a length of 20 mm, a width of 20 mm, and a height of 0.5 mm, place it on a heating table, and heat it at 60°C for 6 hours. Then remove the cured PDMS (20 mm long, 20 mm wide, and 0.5 mm thick) to use as the insulating unit of the electronic skin.
[0029] A copper foil with a length of 28 mm, a width of 16 mm, and a thickness of 50 μm is used as the conductive unit of the electronic skin. It is stacked in the order of one insulating unit and one conductive unit. The top and bottom layers are both insulating units. The number of insulating unit layers is set to 13, and the number of conductive unit layers is set to 12. After stacking, it is fixed with tape on the front, back, left, and right sides of the electronic skin.
[0030] Each layer of copper foil is connected to the exposed copper wire end of the connecting wire with 12-port XH2.54 mm terminals at one end and exposed copper wire at the other end by soldering. The XH2.54 mm terminals are connected to the main control unit by plugging for subsequent replacement operations. The 2.2-inch LCD display is connected to the main control unit with the help of DuPont wires.
[0031] The flexible conductive units on the uppermost layer of the electronic skin are connected to the high-level output port of the main control unit, and the flexible conductive units on the lower layer are respectively connected to the detection input ports of the main control unit.
[0032] When the acupuncture needle penetrates the flexible conductive unit in the lower layer of the practice acupuncture electronic skin, since the acupuncture needle is a metal conductor, the uppermost flexible conductive unit will be connected to the lower flexible conductive unit, and the main control unit can read the high and low level signals of the lower flexible conductive unit. Once a high level signal is read, it indicates that the acupuncture needle has penetrated the conductive layer. Based on this, the current penetration depth data of the acupuncture needle can be judged in real time and displayed on the display screen.
[0033] For example, when the acupuncture needle penetrates the fourth layer of conductive units, since the first layer of conductive units is connected to the high-level output port of the main control unit, the acupuncture needle is a conductor, which will make the second, third and fourth layers of conductive units all high-level and connected to the detection input port of the main control unit. Each layer of conductive units is connected to a different input detection port of the main control unit, and thus it can be determined which layers of conductive units are penetrated. According to the set priority relationship, that is, the lower layer of conductive units has a higher priority than the upper layer of conductive units. When the fourth layer is penetrated, the main control unit controls the display screen to display the current depth data of the fourth layer of conductive units, that is, 2 mm.
[0034] In this embodiment, the thickness of the insulating unit is 0.5 mm, the thickness of the conductive unit is 50 μm, and the depth resolution is 0.51 mm. Since the number of insulating unit layers is set to 13 and the number of conductive unit layers is set to 12, the overall detection depth is 6 mm.
[0035] Figure 3 This is a depth data diagram displayed on the display screen when the electronic skin obtained in Example 1 of the present invention is pricked by acupuncture.
[0036] Example 2
[0037] Slowly pour PDMS prepolymer into a pre-made mold with dimensions of 20 mm in length, 20 mm in width, and 0.3 mm in height. Then place the mold on a heating table and heat it at a constant temperature of 60 °C for 6 hours. After heating is completed, remove the cured PDMS, which will serve as the insulating unit of the electronic skin.
[0038] First, prepare a solution mixed in a specific ratio, that is, polyvinyl alcohol (PVA) with a molecular weight of 130,000 is dissolved in a solution of PEDOT:PSS, deionized water and ethylene glycol (EG) in a ratio of 9 wt%: 0.3 wt%: 31 wt%: 60 wt%. Then, stir the mixed solution at 800 rpm at 90°C for 3 hours. After stirring, pour the solution into a mold with a length of 20 mm, a width of 20 mm and a height of 0.2 mm, and then cool it at minus 20°C and keep it at this temperature for 10 minutes. Then, peel it off from the mold, and this part is the conductive unit of the electronic skin.
[0039] Take a conductive cloth with a length of 10 cm and a width of 2 mm, and connect it to the conductive unit using conductive silver glue. Stack them in the order of one insulating unit and one conductive unit, where the top and bottom layers are both insulating units, the number of insulating unit layers is set to 22 layers, and the number of conductive unit layers is 21 layers. After stacking, PDMS is poured on the electronic skin and heated at 100 ° C for 3 hours to cure, thereby realizing device packaging. Use soldering to connect the conductive cloth of each layer of conductive unit to the DuPont line, and the other end of the DuPont line is connected to the main control unit. At the same time, connect the 2.2-inch LCD display to the main control unit with the DuPont line. In addition, the flexible conductive unit on the top layer of the electronic skin is connected to the high-level output port of the main control unit, and the flexible conductive units on the lower layer are respectively connected to the detection input port of the main control unit.
[0040] When the acupuncture needle penetrates the flexible conductive unit in the lower layer of the practice acupuncture electronic skin, since the acupuncture needle is a metal conductor, the uppermost flexible conductive unit will be connected to the lower flexible conductive unit. At this time, the main control unit can read the high and low level signals of the lower flexible conductive unit. Once a high level signal is read, it means that the acupuncture needle has penetrated the conductive layer. Based on this, the main control unit can determine the current penetration depth data of the acupuncture needle in real time and display it on the display screen.
[0041] Compared with Example 1, since the copper foil has no elasticity, it will leave a needle hole when pierced, resulting in low durability. Example 2 uses conductive hydrogel as a conductive unit, which can make good contact with acupuncture needles and has relatively good elasticity, and both durability and data accuracy are improved.
[0042] In this embodiment, the thickness of the insulating unit is 0.3 mm, the thickness of the conductive unit is 0.2 mm, and the depth resolution is 0.5 mm. Since the number of insulating unit layers is set to 22 layers and the number of conductive unit layers is set to 21 layers, the overall detection depth is 10 mm.
[0043] Figure 4 This is the depth data image obtained in Example 2 of the present invention.
[0044] Example 3
[0045] Add 2g of boric acid to 20 mL of methanol solution, set the temperature to 30 °C, start the continuous stirring mode, and stir for 1 hour to prepare a boric acid-methanol solution. Add 20g of hydroxyl-terminated polydimethylsiloxane (OH-PDMS) to the prepared boric acid-methanol solution, adjust the stirring environment to room temperature, use rapid stirring, and stir for 3 hours. After stirring, place the mixed solution on a static table and let it stand for 1 hour until two clearly separated liquid phases can be observed. Use a transfer tube to carefully remove the top layer of methanol liquid and extract P-HDMS from the bottom.
[0046] The extracted P-HDMS was transferred to a vacuum tank and placed at room temperature for 12 h to ensure the removal of residual methanol.
[0047] Weigh P-HDMS and poly(succinic acid-terephthalic acid-terephthalate) (Ecoflex-30) in a weight ratio of 1:1, mix the two, and stir them at 500 rpm for 3 minutes using a magnetic stirrer. Slowly pour the stirred P-HDMS-Ecoflex-30 solution into a pre-made mold with a size of 20 mm long, 20 mm wide, and 0.3 mm high. Then place the mold on a heating table and heat it at a constant temperature of 60 ° C for 6 hours. After the heating is completed and the material is solidified, remove it from the mold, which is the insulating unit of the electronic skin.
[0048] PEDOT:PSS, ethylene glycol methyl ether methacrylate (PEGMA), 1-butyl-1-methylpyrrolidine bis(trifluoromethanesulfonyl)imide (P14 [TFSI]), and glycerol were weighed and mixed in a weight ratio of 1:4:2:5. A magnetic stirrer was used to stir the mixture at 1000 rpm at room temperature for 12 hours. The resulting conductive solution was poured into a pre-made mold with a size of 20 mm in length, 20 mm in width, and 0.3 mm in height. First, heat it at 50°C for 3 hours, and then heat it at 140°C for 6 hours. After heating, it was peeled off from the mold, and this part was the conductive unit of the electronic skin.
[0049] Take a conductive cloth with a length of 10 cm and a width of 2 mm, and connect it to the conductive unit using conductive silver glue. Stack them in the order of one insulating unit and one conductive unit, where the top and bottom layers are both insulating units, the number of insulating unit layers is set to 5, and the number of conductive unit layers is 4. After stacking, Ecoflex-30 is poured on the electronic skin and heated at 100 ° C for 3 hours to cure, so as to achieve device packaging. Use soldering to connect the conductive cloth of each layer of conductive unit to the DuPont line, and the other end of the DuPont line is connected to the main control unit. At the same time, connect the 2.2-inch LCD display to the main control unit with the DuPont line. In addition, the flexible conductive unit on the top layer of the electronic skin is connected to the high-level output port of the main control unit, and the flexible conductive units on the lower layer are connected to the detection input port of the main control unit respectively.
[0050] When the acupuncture needle penetrates the flexible conductive unit in the lower layer of the practice acupuncture electronic skin, since the acupuncture needle is a metal conductor, the uppermost flexible conductive unit will be connected to the lower flexible conductive unit. At this time, the main control unit can read the high and low level signals of the lower flexible conductive unit. Once a high level signal is read, it means that the acupuncture needle has penetrated the conductive layer. Based on this, the main control unit can determine the current penetration depth data of the acupuncture needle in real time and display it on the display screen.
[0051] Figure 5 This is a physical picture of the electronic skin obtained in Example 3 of the present invention.
[0052] Compared with Example 2, the conductive hydrogel loses water in the atmosphere, which greatly reduces its conductive and mechanical properties. It needs to be stored in a vacuum before use, which is very expensive. Example 3 The conductive gel can be placed in the atmosphere without vacuum storage and special storage conditions.
[0053] In this embodiment, the thickness of the insulating unit is 0.3 mm, the thickness of the conductive unit is 0.3 mm, and the depth resolution is 0.5 mm. Since the number of insulating unit layers is set to 5 and the number of conductive unit layers is set to 4, the overall detection depth is 2 mm.
[0054] Comparative Example 1
[0055] The implementation steps of Comparative Example 1 are basically the same as those of Example 1, except that the thickness of the conductive unit is different. The thickness is changed from 50 μm in Example 1 to 100 μm. Due to the high thickness, the acupuncture needle cannot penetrate the electronic skin well, and the penetration depth of the acupuncture needle cannot be accurately detected.
[0056] Comparative Example 2
[0057] The implementation steps of Comparative Example 2 are basically the same as those of Example 3, except that the thickness of the insulating unit and the conductive unit are different. Compared with the thickness of 0.3 mm in Example 3, the thickness of the insulating unit and the conductive unit of Comparative Example 2 reaches 1 mm, resulting in low depth resolution. When the acupuncture needle penetrates the second conductive layer, the display screen and the display depth of 3 mm are not conducive to the practice of acupuncture insertion.
[0058] The present invention is not limited to the specific technical solutions described in the above embodiments, and all technical solutions formed by equivalent replacement are within the protection scope required by the present invention.
Claims
1. A method for preparing an acupuncture electronic skin for practice, characterized in that: It includes flexible insulating units and conductive units that are compositely arranged in sequence; the top layer of the electronic skin for practicing acupuncture is an insulating layer, the bottom layer is an insulating layer, and the middle layer is composed of conductive layer units and insulating units stacked in sequence. The number of layers of conductive units and insulating units increases or decreases according to the depth requirements of the practice.
2. The method for preparing the electronic skin for practicing acupuncture and moxibustion according to claim 1, characterized in that: Use soldering to connect each layer of conductive unit to the DuPont line, the other end of the DuPont line is connected to the main control unit, the LCD display is connected to the main control unit with the DuPont line, the flexible conductive unit on the top layer of the electronic skin is connected to the high-level output port of the main control unit, and the flexible conductive units on the bottom layer are respectively connected to the detection input ports of the main control unit; the overall thickness of the electronic skin is 3 mm-3cm, the thickness of the insulating unit and the conductive unit is 0.1mm-1mm, and the number of layers of the electronic skin is set according to the thickness of the electronic skin, the insulating unit and the conductive unit. The number of insulating unit layers is 3-81 layers, the number of conductive unit layers is 2-80 layers, and the overall number of electronic skin layers is 5-161 layers.
3. The method for preparing the electronic skin for practicing acupuncture and moxibustion according to claim 1, characterized in that: The flexible insulating unit is one or more of polydimethylsiloxane, hydrogenated styrene-butadiene block copolymer, platinum-catalyzed silicone rubber, polyimide, polyethylene terephthalate, chitosan, gelatin, agarose, guar gum, polyethylene glycol, polyacrylic acid, and polyvinyl alcohol; the conductive unit is a conductive hydrogel, wherein the conductive material doped in the hydrogel is one or more of carbon-based materials, conductive polymers, metals, and metal oxides.
4. The method for preparing the electronic skin for practicing acupuncture and moxibustion according to claim 1, characterized in that: The conductive unit is a metal sheet, which is one or more of gold, silver, copper and aluminum.
5. The method for preparing the electronic skin for practicing acupuncture and moxibustion according to claim 1, characterized in that: The conductive unit is a conductive hydrogel, wherein the hydrogel is doped with a carbon-based material using one or more of graphene, redox graphene, carbon nanotubes, multi-walled carbon nanotubes, and graphene oxide; or the hydrogel is doped with a conductive polymer polypyrrole, polyaniline, aniline oligomer (oligoaniline), polythiophene, poly(3,4-ethylenedioxythiophene), poly(p-styrene), poly(3,4-ethylenedioxythiophene)-poly(styrene sulfonate).
6. The method for preparing the electronic skin for practicing acupuncture and moxibustion according to claim 1, characterized in that: The conductive unit is a conductive hydrogel, wherein the hydrogel is doped with one or more of the metals gold, silver, copper, platinum, iron, and chromium.
7. The method for preparing the electronic skin for practicing acupuncture and moxibustion according to claim 1, characterized in that: The conductive unit is a conductive hydrogel, wherein the hydrogel is doped with one or more of the metal oxides ferrosoferric oxide, zinc oxide, titanium dioxide, and zirconium dioxide.
8. The method for preparing the electronic skin for practicing acupuncture and moxibustion according to claim 1, characterized in that: The following steps are involved: Pour polydimethylsiloxane prepolymer into the prepared mold with a length of 20 mm, a width of 20 mm, and a height of 0.5 mm, place it on a heating table, and after heating at 60 ° C for 6 hours, remove the cured PDMS to use it as the insulating unit of the electronic skin; A copper foil with a length of 28 mm, a width of 16 mm, and a thickness of 50 μm was used as the conductive unit of the electronic skin. It was stacked in the order of one insulating unit and one conductive unit. The top and bottom layers were both insulating units. The number of insulating unit layers was set to 13, and the number of conductive unit layers was set to 12. After stacking, it was fixed with tape on the front, back, left, and right sides of the electronic skin. Each layer of copper foil is connected to the exposed copper wire end of a connecting wire with 12-port XH2.54 mm terminals at one end and exposed copper wire at the other end by soldering. The XH2.54 mm terminals are connected to the main control unit by plugging to facilitate subsequent replacement operations. The 2.2-inch LCD display is connected to the main control unit with the help of Dupont cables; The flexible conductive units on the uppermost layer of the electronic skin are connected to the high-level output port of the main control unit, and the flexible conductive units on the lower layer are respectively connected to the detection input ports of the main control unit.
9. An acupuncture electronic skin for practice prepared according to any one of claims 1-8.