Acupuncture needle for traditional Chinese medicine needle warming moxibustion

Abstract

The invention relates to the technical field of medical instruments, and relates to an acupuncture needle, in particular to an acupuncture needle for traditional Chinese medicine needle warming moxibustion, which comprises a needle body, the needle body comprises a moxibustion fixing part and an acupuncture part positioned below the moxibustion fixing part, and the central axis of the moxibustion fixing part coincides with the central axis of the acupuncture part. The acupuncture and moxibustion part comprises a metal body located inside, a heat conduction enhancing layer formed outside the metal body and a phase change heat insulation layer formed outside the heat conduction enhancing layer, and the phase change temperature of materials of the phase change heat insulation layer ranges from 42 DEG C to 45 DEG C. The needle body of the acupuncture needle is structurally improved, so that the needle body is more suitable for needle warming moxibustion, heat of moxibustion can be fully utilized in the acupuncture process, and discomfort and even scald of a user due to the fact that the temperature of the needle body is too high are avoided.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more particularly to an acupuncture needle, specifically an acupuncture needle for warm needling moxibustion in traditional Chinese medicine. Background Technology

[0002] Acupuncture is one of the commonly used treatment methods in traditional Chinese medicine. It involves inserting acupuncture needles into different acupoints of the patient and stimulating the surrounding tissues by rotating the acupuncture needles, thereby triggering a bodily response and achieving a therapeutic effect. It is widely used in clinical practice.

[0003] Acupuncture is divided into acupuncture and moxibustion. Acupuncture, guided by Traditional Chinese Medicine theory, involves inserting needles into the patient's body at specific angles and using techniques such as lifting, thrusting, and twisting to stimulate specific points on the body, thereby treating certain diseases. Moxibustion uses specially prepared mugwort or moxa cones to burn or fumigate certain areas of the body, using heat stimulation to treat and prevent certain diseases. Warm acupuncture is a method combining acupuncture and moxibustion. During the insertion of the acupuncture needle into the skin, moxa wool is rolled into a ball, wrapped around the needle handle, and ignited, transmitting heat to the acupoints through the needle. Warm acupuncture has the effect of warming and unblocking the meridians, promoting qi and blood circulation, and helping the body achieve a state of yin-yang balance.

[0004] When performing warm acupuncture on a patient, the operator first inserts the acupuncture needle into the corresponding acupoint, then inserts the moxa stick into the handle of the acupuncture needle, and then lights the moxa stick. The heat generated by the burning moxa stick is transferred to the handle of the needle, which in turn transfers the heat to the needle tip, and finally the needle tip transfers the heat to the patient's acupoint, thereby achieving the treatment of the patient.

[0005] Whether using acupuncture or warm needling, the most important tool is the acupuncture needle. Usually, the acupuncture needles used in both are the same. However, to adapt to the specific characteristics of warm needling, some improved acupuncture needles have been developed. For example, CN113712810A discloses a convenient and burn-proof warm needling device that includes a moxa stick, acupuncture needles, and a cylindrical tin foil. The bottom surface of the moxa stick has a blind hole, and the handle of the acupuncture needle is inserted into the blind hole. The needle tip is positioned outside the blind hole. Both ends of the cylindrical tin foil have openings, and a notch is formed along its axial direction. The upper end of the cylindrical tin foil is fitted onto the moxa stick, and the needle tip is positioned inside the cylindrical tin foil. A flame-retardant aluminum sheet is wound around the cylindrical surface of the moxa stick, binding the cylindrical tin foil to the moxa stick. This warm needling device prevents moxa ash from falling onto the patient's skin and causing burns, and simplifies the warm needling operation for the operator. For example, CN222765452U discloses a multifunctional warm needling needle, including a needle handle, a collecting tray mounted on the outer side of the needle handle, and symmetrically mounted limiting sliders on the outer side of the collecting tray. A sleeve covers the outer side of the collecting tray, and a limiting ring is mounted on the upper inner side of the sleeve. A filter assembly is disposed inside the sleeve, and the filter assembly is located on top of the limiting ring. The filter assembly is used to filter the smoke produced by burning mugwort. In this invention, during warm needling of a patient, the smoke produced by burning mugwort is blocked by the sleeve, preventing it from spreading outwards. The smoke rises inside the sleeve, passing sequentially through a supporting filter and an activated carbon filter layer. The supporting filter removes large particulate impurities from the smoke, and the activated carbon filter layer adsorbs harmful gases from the smoke, thus purifying the smoke and helping to purify the air. This purification of the smoke reduces its impact on the air in the warm needling room.

[0006] Existing improvements to acupuncture needles used in warm needling are actually improvements to their external structure, not improvements to the needles themselves. During warm needling, the heat from the moxibustion is transferred to the needle body, which can still result in excessively high temperatures, causing discomfort or even burns. Summary of the Invention

[0007] The purpose of this invention is to provide an acupuncture needle and acupuncture box for warm needling moxibustion in traditional Chinese medicine. By improving the acupuncture needle itself, the invention aims to prevent discomfort or even burns caused by excessively high needle temperature.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A traditional Chinese medicine warm needling acupuncture needle includes a needle body, which includes a moxibustion fixing part and an acupuncture part located below the moxibustion fixing part. The central axis of the moxibustion fixing part and the central axis of the acupuncture part coincide. The acupuncture part includes an inner metal body, a thermally conductive enhancement layer formed outside the metal body, and a phase change insulation layer formed outside the thermally conductive enhancement layer. The phase change insulation layer is made of a material with a phase change temperature of 42-45℃.

[0010] As the background art shows, existing improvements to acupuncture needles used in warm needling acupuncture focus on the external structure of the needle, rather than the needle itself. This fails to address the problem of excessive heat from the needle, which can cause discomfort or even burns to the user.

[0011] In this invention, the needle itself undergoes structural optimization to prevent discomfort or even burns caused by excessively high needle temperatures. Specifically, a thermally conductive enhancement layer is applied to the outer surface of the metal body. This layer effectively conducts the heat generated by moxibustion, increasing heat transfer efficiency and reducing heat loss. Furthermore, a phase-change insulating layer is applied outside the thermally conductive enhancement layer. This layer utilizes the characteristic of phase-change materials that undergo a phase change at a certain temperature while maintaining a constant temperature. This ensures that when the temperature exceeds a certain value, a phase change occurs, controlling the needle temperature within a specific range to prevent burns. Preferably, the phase change temperature is between 42-45°C, at which temperature both ideal warm acupuncture therapeutic effects and burn prevention are achieved.

[0012] Preferably, the material of the thermally conductive enhancement layer is copper-coated graphene oxide.

[0013] Preferably, the phase change insulation layer is formed by microcapsules with methyl laurate as the core layer and urea-formaldehyde resin as the wall material.

[0014] Preferably, the thickness of the thermally conductive enhancement layer is 45μm-60μm.

[0015] Preferably, the thickness of the phase change insulation layer is 250μm-350μm.

[0016] Preferably, the metal body is laser-engraved with a honeycomb structure. The honeycomb structure is beneficial to the formation of the subsequent thermally conductive reinforcement layer and phase change insulation layer, improving the stability of the structure. It also helps to increase the contact area between the thermally conductive reinforcement layer and the metal body, which is beneficial to further improve heat conduction.

[0017] Preferably, the pore size of the honeycomb pores is 80μm-120μm.

[0018] Preferably, an outer shell is provided on the outer surface of the phase change insulation layer, the outer shell being a polyimide aerogel layer.

[0019] Preferably, the thickness of the outer shell is 100μm-150μm.

[0020] Preferably, the metal body is made of stainless steel, copper, or an alloy.

[0021] Preferably, the diameter of the moxibustion fixation part is larger than the diameter of the acupuncture part.

[0022] Preferably, the outer surface of the moxibustion fixing part is provided with threaded protrusions, which is beneficial for fixing the moxibustion column and also helps to conduct the heat generated by moxibustion to the metal needle body.

[0023] Preferably, the metal body is provided with a thermally stable conductive cavity, the lower end of which is closed and the upper end is open, reaching the moxibustion fixing part, and the thermally stable conductive cavity is filled with liquid metal.

[0024] By implementing the above technical solution, the present invention has the following beneficial effects:

[0025] This invention improves the structure of the acupuncture needle itself, making it more suitable for warm acupuncture. During the acupuncture process, it can not only make full use of the heat of moxibustion, but also prevent the needle from getting too hot, which could cause discomfort or even burns to the user. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the acupuncture needle described in Embodiment 1 of the present invention.

[0027] Figure 2 This is a schematic diagram of the internal structure of the acupuncture needle described in Embodiment 1 of the present invention.

[0028] Figure 3 This is a three-dimensional structural diagram of the acupuncture needle described in Embodiment 2 of the present invention. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Preparation of microcapsules with methyl laurate-boron nitride nanosheets as the core layer and urea-formaldehyde resin as the wall material

[0031] (1) Preparation of core material

[0032] 5g of boron nitride nanosheets (BNNS) were ultrasonically dispersed (200W, 30min) in 100g of methyl laurate to obtain the core material.

[0033] (2) Preparation of wall material prepolymer

[0034] step:

[0035] 45g of urea was added to 120g of 37% formaldehyde solution, and the pH was adjusted to 8.0 with triethanolamine. The mixture was reacted at 70℃ for 45min to generate hydroxymethylurea prepolymer. Then, 9g of melamine was added, stirred evenly, and the pH was adjusted to 4.5 with citric acid. The mixture was reacted at 60℃ for another 30min to obtain the wall material prepolymer.

[0036] (3) Emulsion preparation

[0037] Mix 300g of deionized water and 10g of gelatin evenly with a constant temperature magnetic stirrer, add the core material prepared above, preheat to 60℃, and process with a high pressure homogenizer at 12000rpm for 10min to obtain an emulsion.

[0038] (4) Microcapsule forming

[0039] The wall material prepolymer was slowly dripped into the emulsion (at a rate of 2 mL / min), heated to 55°C, stirred at 400 rpm, and the pH of the reaction system was controlled at 3.8-4.2 for 120 min. After centrifugation (4000 rpm, 10 min), washing with water (three times), and drying (vacuum drying at 40°C (-0.08 MPa)), microcapsules were obtained.

[0040] Example 1

[0041] This embodiment provides an acupuncture needle for warm needling moxibustion in traditional Chinese medicine. From its appearance, see [reference needed]. Figure 1 The device includes a moxibustion fixing part 100 and an acupuncture part 200 located below the moxibustion fixing part 100. The central axis of the moxibustion fixing part 100 and the central axis of the acupuncture part 200 coincide. The outer diameter of the moxibustion fixing part 100 is larger than the outer diameter of the acupuncture part 200, approximately twice the outer diameter of the acupuncture part 200. This facilitates the fixing of the moxibustion column to the moxibustion fixing part 100 and also facilitates the downward transfer of heat from the burning moxibustion.

[0042] See Figure 2 The acupuncture unit 200 includes an internal metal body 201, a thermally conductive enhancement layer 202 formed outside the metal body 201, and a phase change heat insulation layer 203 formed outside the thermally conductive enhancement layer 202.

[0043] The metal body is made of medical-grade austenitic 316L stainless steel (Φ0.30±0.01mm), and the length can be 40mm, 50mm, 75mm, etc., depending on the actual needs. The moxibustion fixation part 100 is also made of medical-grade austenitic 316L stainless steel, and the metal body of the moxibustion fixation part 100 and the acupuncture part 200 are connected by laser welding.

[0044] The thermally enhanced layer is formed on the outer surface of the metal body using a Cu@GO vertical array.

[0045] The phase change insulation layer is made of microcapsules with methyl lauryl nitride-boron nitride nanosheets as the core layer and urea-formaldehyde resin as the wall material. The phase change temperature of this material is around 44℃, and the preparation method is as described above.

[0046] The acupuncture needles for warm needling moxibustion provided in this embodiment are prepared according to the following method:

[0047] S1. Provide a metal body, laser-cut to a specified length, weld it to the moxibustion fixing part 100, and then perform electrolytic polishing (H3PO4:CH3COOH=3:1, 15V / 120s) until the surface roughness Ra≤0.05μm. Then perform plasma activation under the conditions Ar / O2=4:1, 300W, 3min to obtain the needle substrate.

[0048] S2. On the metal body portion of the needle substrate, a copper seed layer is deposited by magnetron sputtering under the following conditions: 150℃, 0.8Pa Ar, 200nm. GO@CNT is then electrophoretically deposited with a dispersion of 0.5mg / mL GO and 0.2mg / mL CNT at 50V, 120s, and a gap of 10mm to obtain the needle substrate with a loaded thermally conductive reinforcement layer.

[0049] S3. Laser drilling is performed on the needle substrate (metal body) of the thermally conductive reinforcement layer, with a wavelength of 1030nm and a flash speed of 300fs. The diameter of the honeycomb holes is Φ100μm, and the hole density is 200 holes / mm. 2 .

[0050] S4. On the needle substrate in step S3, a phase change heat insulation layer is formed on the surface of the thermally conductive reinforcement layer by vacuum infusion (vacuum degree 10-2 Pa, temperature 60℃), thus obtaining a needle substrate with a loaded phase change heat insulation layer, which is the acupuncture needle for traditional Chinese medicine warm acupuncture.

[0051] Example 2

[0052] This embodiment provides an acupuncture needle for warm needling moxibustion in traditional Chinese medicine. From its appearance, see [reference needed]. Figure 3The device includes a moxibustion fixing part 100 and an acupuncture part 200 located below the moxibustion fixing part 100. The central axis of the moxibustion fixing part 100 and the central axis of the acupuncture part 200 coincide. The outer diameter of the moxibustion fixing part 100 is larger than the outer diameter of the acupuncture part 200, approximately 1.5 times the outer diameter of the acupuncture part 200. Threaded protrusions are provided on the outer surface of the moxibustion fixing part 100. This facilitates the fixing of the moxibustion column to the moxibustion fixing part 100 and also facilitates the downward transfer of heat from the burning moxibustion.

[0053] The acupuncture unit includes an internal metal body 201, a thermally conductive enhancement layer 202 formed outside the metal body 201, and a phase change heat insulation layer 203 formed outside the thermally conductive enhancement layer 202. In this embodiment, a shell made of polyimide aerogel is also provided outside the phase change heat insulation layer 203.

[0054] The metal body is made of medical-grade austenitic 316L stainless steel (Φ0.30±0.01mm), and the length can be 40mm, 50mm, 75mm, etc., depending on the actual needs. The moxibustion fixation part 100 is also made of medical-grade austenitic 316L stainless steel, and the metal body of the moxibustion fixation part 100 and the acupuncture part 200 are connected by laser welding.

[0055] The thermally enhanced layer is formed on the outer surface of the metal body using a Cu@GO vertical array.

[0056] The phase change insulation layer is made of microcapsules with methyl lauryl nitride-boron nitride nanosheets as the core layer and urea-formaldehyde resin as the wall material. The phase change temperature of this material is around 44℃, and the preparation method is as described above.

[0057] The acupuncture needles for warm needling moxibustion provided in this embodiment are prepared according to the following method:

[0058] S1. Provide a metal body, laser-cut to a specified length, weld it to the moxibustion fixing part 100, and then perform electrolytic polishing (H3PO4:CH3COOH=3:1, 15V / 120s) until the surface roughness Ra≤0.05μm. Then perform plasma activation under the conditions Ar / O2=4:1, 300W, 3min to obtain the needle substrate.

[0059] S2. On the metal body portion of the needle substrate, a copper seed layer is deposited by magnetron sputtering under the following conditions: 150℃, 0.8Pa Ar, 200nm. GO@CNT is then electrophoretically deposited with a dispersion of 0.5mg / mL GO and 0.2mg / mL CNT at 50V, 120s, and a gap of 10mm to obtain the needle substrate with a loaded thermally conductive reinforcement layer.

[0060] S3. Laser drilling is performed on the needle substrate (metal body) of the thermally conductive reinforcement layer, with a wavelength of 1030nm and a flash speed of 300fs. The diameter of the honeycomb holes is Φ100μm, and the hole density is 200 holes / mm. 2 .

[0061] S4. On the needle substrate in step S3, a phase change insulation layer is formed on the surface of the thermally conductive reinforcement layer by vacuum infusion (vacuum degree 10-2 Pa, temperature 60℃), thus obtaining the needle substrate with the loaded phase change insulation layer.

[0062] S5. On the surface of the needle substrate loaded with the phase change insulation layer in step S4, a polyimide aerogel layer is formed on the surface of the phase change insulation layer by electrostatic spraying process. The wet film thickness is 200μm. It is dried under supercritical CO2 conditions (10MPa / 40℃) to obtain acupuncture needles for traditional Chinese medicine warm acupuncture.

[0063] Example 3

[0064] The difference from Embodiment 2 is that, in this embodiment, the metal body 201 is provided with a thermally stable conductive cavity, the lower end of which is closed and the upper end is open to reach the moxibustion fixing part, and the thermally stable conductive cavity is filled with liquid metal.

Claims

1. An acupuncture needle for warm needling moxibustion in traditional Chinese medicine, comprising a needle body, characterized in that, The needle body includes a moxibustion fixing part and an acupuncture part located below the moxibustion fixing part. The central axis of the moxibustion fixing part and the central axis of the acupuncture part coincide. The acupuncture part includes an internal metal body, a thermally conductive enhancement layer formed outside the metal body, and a phase change insulation layer formed outside the thermally conductive enhancement layer. The phase change insulation layer is made of a material with a phase change temperature of 42-45℃.

2. The acupuncture needle for warm needling moxibustion according to claim 1, characterized in that, The thermally conductive reinforcement layer is made of copper-coated graphene oxide.

3. The acupuncture needle for warm needling moxibustion in traditional Chinese medicine according to claim 1, characterized in that, The phase change insulation layer is formed by microcapsules with methyl laurate as the core layer and urea-formaldehyde resin as the wall material.

4. The acupuncture needle for warm needling moxibustion according to claim 1, characterized in that, The thickness of the thermally conductive enhancement layer is 45μm-60μm.

5. The acupuncture needle for warm needling moxibustion according to claim 1, characterized in that, The thickness of the phase change insulation layer is 250μm-350μm.

6. The acupuncture needle for warm needling moxibustion according to claim 1, characterized in that, The metal body has a honeycomb structure laser-engraved on it.

7. The acupuncture needle for warm needling moxibustion according to claim 1, characterized in that, The pore size of the honeycomb is 80μm-120μm.

8. The acupuncture needle for warm needling moxibustion according to claim 1, characterized in that, An outer shell, which is a polyimide aerogel layer, is also provided on the outer surface of the phase change insulation layer.

9. The acupuncture needle for warm needling moxibustion according to claim 1, characterized in that, The thickness of the outer shell is 100μm-150μm.

10. The acupuncture needle for warm needling moxibustion according to claim 1, characterized in that, The metal body is made of stainless steel, copper, or an alloy.

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