An electroacupuncture simulation device

Abstract

This utility model discloses an electroacupuncture simulation device, relating to the field of clinical medical technology. The electroacupuncture simulation device includes a base, a cannula, and a needle body. The base is used to fit and fix to the subject's skin, and has an operating channel. The cannula is installed within the operating channel and has a locking part inside. The needle body passes through the cannula and is electrically connected to a power supply device. When the blunt needle tip of the needle body passes through the cannula and abuts against the subject's skin, the locking part can limit the relative position of the needle body relative to the cannula. In this electroacupuncture simulation device, when the blunt needle tip of the needle body presses against the subject's skin, causing a stinging sensation, the locking part limits the relative position of the needle body and the cannula, thereby enabling the needle body to provide the subject with a more realistic acupuncture treatment experience, thus ensuring the accuracy of acupuncture clinical trials.

Description

Technical Field

[0001] This utility model relates to the field of clinical medical technology, and in particular to an electroacupuncture simulation device. Background Technology

[0002] In standardized clinical trials involving acupuncture therapy, a double-blind design is an internationally recognized standard to ensure the objectivity and reliability of research conclusions. A key aspect of this blinded testing is the use of sham needles as a negative control; the core requirement is that neither the subject nor the operator can distinguish between real acupuncture and the simulated procedure through tactile feedback.

[0003] However, traditional spurious needles have several problems. On the one hand, their needle fixation device is poorly designed, making them prone to wobbling after insertion into the skin. This causes the subject to clearly feel the unstable movement of the needle, and this abnormal tactile feedback is completely different from the stable stimulation felt during real acupuncture. On the other hand, traditional spurious needles lack an effective pressure maintenance mechanism, failing to provide continuous and stable simulated pressure to the skin. Furthermore, when it comes to electroacupuncture devices, due to the lack of a matching electrode connection simulation structure and pulse output simulation module, they cannot accurately reproduce the entire process of electroacupuncture devices, from electrode attachment and wire connection to pulse parameter setting.

[0004] These flaws make traditional spurious needles easily detectable by both subjects and operators. Once a subject realizes they are using a spurious needle, their subjective evaluation indicators (such as pain level and perceived treatment effect) may be biased due to psychological factors. If the operator is aware that a spurious needle is being used, they may unconsciously change their auxiliary techniques (such as the force and frequency of twisting, lifting, and thrusting). These situations can seriously affect the scientific validity of double-blind trials, thereby reducing the accuracy of experimental results. Utility Model Content

[0005] In view of this, the purpose of this utility model is to overcome the shortcomings in related technologies, and this utility model provides an electroacupuncture simulation device.

[0006] This utility model provides the following technical solution: An electroacupuncture simulation device includes a base, a sleeve, and a needle body.

[0007] The base is used to fit and fix the subject's skin, and the base is provided with an operating channel; the cannula is installed in the operating channel, and the cannula is provided with a locking part; the needle body is inserted into the cannula, and the needle body is electrically connected to a power supply device; when the blunt needle tip of the needle body passes through the cannula and abuts against the subject's skin, the locking part can limit the relative position of the needle body with respect to the cannula.

[0008] As a further improvement to the above technical solution, the inner wall of the sleeve is provided with an elastic snap-fit ​​protrusion, which is used to form the snap-fit ​​part. The side wall of the needle body is provided with a snap-fit ​​block that engages with the snap-fit ​​protrusion. During the process of the needle body passing through the sleeve, the snap-fit ​​block can first squeeze the snap-fit ​​protrusion, then pass over the snap-fit ​​protrusion, and finally, after the snap-fit ​​protrusion returns to its shape, it can limit the snap-fit ​​block.

[0009] As a further improvement to the above technical solution, multiple snap-fit ​​bosses are evenly distributed along the axial direction of the sleeve.

[0010] As a further improvement to the above technical solution, both the sleeve and the snap-fit ​​boss are made of conductive metal. The outer wall of the sleeve is provided with a connection port, which is used to make an electrical connection with the power supply line of the power supply equipment.

[0011] As a further improvement to the above technical solution, a tapered guide tube is provided at the end of the cannula away from the subject's skin, and the opening area of ​​the guide tube away from the cannula is larger than the opening area of ​​the guide tube communicating with the cannula; the guide tube is made of insulating material.

[0012] As a further improvement to the above technical solution, the portion of the cannula closest to the subject's skin is a guide segment, the inner diameter of which matches the diameter of the needle body, and the guide segment and the portion where the snap-fit ​​protrusion is located are connected by a conical transition.

[0013] As a further improvement to the above technical solution, the sleeve is installed in the operating channel through a threaded connection.

[0014] As a further improvement to the above technical solution, the end of the needle body away from the blunt needle tip is provided with a grip handle, which is made of insulating material.

[0015] As a further improvement to the above technical solution, the end face of the base near the subject's skin is provided with a flexible connecting plate. The projected area of ​​the connecting plate on the subject's skin is larger than the projected area of ​​the base on the subject's skin. The connecting plate is bonded to the subject's skin by an adhesive pad.

[0016] As a further improvement to the above technical solution, the base is provided with multiple operating channels, and the angle between the axis of the operating channel and the plane where the subject's skin is located is α, and the value of α is 15°, 30°, 45°, 60° and 90°.

[0017] Compared with related technologies, the beneficial effects of this utility model are: The electroacupuncture simulation device provided by this utility model, in the process of simulating actual acupuncture treatment, firstly, the base is attached and fixed to the subject's skin. The stability of the base attachment directly affects the effect of the entire simulated treatment. When fixing the base, its position must be carefully adjusted so that the operating channel is close to the opening on the subject's skin and aligned with the location to be acupunctured. This operation is crucial to ensuring the accuracy of the acupuncture location, because only when the opening is accurately aligned with the target location can the subsequent needle operation be targeted and simulate the effect of acting on specific acupoints during real acupuncture treatment.

[0018] After securing and positioning the base, the needle insertion process begins. The needle is inserted into the cannula within the operating channel. During insertion, it's crucial to ensure a smooth and stable entry, avoiding any jamming or misalignment. When the blunt tip of the needle passes through the cannula and finally rests against the subject's skin, the pressure applied by the needle will cause the skin to indent. This indentation simulates the skin's reaction during actual acupuncture. Simultaneously, the subject will clearly feel a tingling sensation similar to acupuncture treatment.

[0019] At this point, the locking mechanism limits the relative position of the needle body to the cannula. After the needle body contacts the skin, the locking mechanism fixes the needle body in the appropriate position, thereby limiting the relative position between the needle body and the subject's skin. This limiting effect allows the needle body to remain stably in contact with the skin, thus providing continuous pressure to the subject's skin. Continuous pressure is one of the key factors in ensuring that the subject receives the stimulation sensation of real acupuncture, because in real acupuncture treatment, the needle body maintains a certain stimulation intensity and duration at the acupoint. The limiting effect of the locking mechanism can simulate this continuous stimulation effect to the greatest extent.

[0020] After ensuring the needle provides stable stimulation to the subject, it is then electrically connected to the power supply. Once connected, the device can further simulate electroacupuncture treatment. Electroacupuncture treatment combines traditional acupuncture with electrical stimulation, enhancing the therapeutic effect by adjusting parameters such as the intensity and frequency of the current. In this electroacupuncture simulation device, by connecting the needle to the power supply, the process of current acting on the human body through the needle during electroacupuncture treatment can be simulated, providing the subject with a more comprehensive acupuncture simulation experience.

[0021] By strictly limiting the relative position of the needle body and the cannula through the snap-fit ​​part, this design is not only for fixing the needle body, but more importantly, it enables the needle body to provide the subject with a more continuous and stable real acupuncture treatment experience during the simulated treatment process.

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the electroacupuncture simulation device from one perspective is shown in one embodiment of the present invention.

[0025] Explanation of key component symbols: 100-Base; 110-Operating channel; 120-Connecting plate; 121-Rubber pad; 200-Sleeve; 210-Snap-fit ​​part; 211-Snap-fit ​​boss; 220-Connecting port; 230-Guide section; 300-Needle body; 310-Blunt needle tip; 320-Snap-fit ​​block; 330-Holding handle; 400-Guide tube. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0031] like Figure 1 As shown, an embodiment of this utility model provides an electroacupuncture simulation device, including a base 100, a sleeve 200, and a needle body 300.

[0032] The base 100 is used to fit and fix the subject's skin, and the base 100 is provided with an operation channel 110; the sleeve 200 is installed in the operation channel 110, and the sleeve 200 is provided with a locking part 210; the needle body 300 passes through the sleeve 200 and is electrically connected to a power supply device; when the blunt needle tip 310 of the needle body 300 passes through the sleeve 200 and abuts against the subject's skin, the locking part 210 can limit the relative position of the needle body 300 with respect to the sleeve 200.

[0033] The electroacupuncture simulation device provided in this embodiment, during the actual use of simulated acupuncture treatment, firstly, the base 100 is fixed to the subject's skin. The stability of the base 100 directly affects the effect of the entire simulated treatment. When fixing the base 100, its position needs to be carefully adjusted so that the opening of the operating channel 110 close to the subject's skin is aligned with the location requiring acupuncture. This operation is crucial to ensuring the accuracy of the acupuncture location, because only when the opening is accurately aligned with the target location can the subsequent operation of the needle 300 be targeted and simulate the effect of acting on specific acupoints during real acupuncture treatment.

[0034] After the base 100 is fixed and positioned, the needle 300 operation begins. The needle 300 is inserted into the cannula 200 within the operating channel 110. During insertion, it is crucial to ensure the needle 300 enters the cannula 200 smoothly and steadily, avoiding any jamming or misalignment. When the blunt needle tip 310 of the needle 300 passes through the cannula 200 and finally abuts against the subject's skin, the skin will indent due to the pressure applied by the needle 300. This indentation simulates the skin's reaction during actual acupuncture. Simultaneously, the subject will clearly feel a stinging sensation similar to acupuncture treatment.

[0035] At this time, the locking part 210 can limit the relative position of the needle body 300 relative to the cannula 200. After the needle body 300 contacts the skin, the locking part 210 fixes the needle body 300 in a suitable position, thereby limiting the relative position between the needle body 300 and the subject's skin. This limiting effect allows the needle body 300 to remain stably in contact with the skin, thus providing continuous pressure to the subject's skin. Continuous pressure is one of the key factors in ensuring that the subject receives the stimulation sensation of real acupuncture, because in real acupuncture treatment, the needle body 300 maintains a certain stimulation intensity and duration at the acupoint. The limiting effect of the locking part 210 can simulate this continuous stimulation effect to the greatest extent.

[0036] After ensuring that the needle 300 provides stable stimulation to the subject, the needle 300 is then electrically connected to the power supply. Once the electrical connection is complete, the device can further simulate electroacupuncture treatment. Electroacupuncture treatment combines traditional acupuncture with electrical stimulation, enhancing the therapeutic effect of acupuncture by adjusting parameters such as the intensity and frequency of the current. In the electroacupuncture simulation device of this embodiment, by connecting the needle 300 to the power supply, the process of current acting on the human body through the needle 300 during electroacupuncture treatment can be simulated, providing the subject with a more comprehensive acupuncture simulation experience.

[0037] In some specific embodiments, the inner wall of the sleeve 200 is provided with elastic locking protrusions 211, which form the locking portion 210. The locking protrusions 211 are multiple hemispherical protrusions evenly distributed circumferentially relative to the axis of the sleeve 200. The side wall of the needle body 300 is provided with locking blocks 320 that engage with the locking protrusions 211. The locking blocks 320 are spherical. During the process of the needle body 300 passing through the sleeve 200, the locking blocks 320 can first compress the locking protrusions 211, then pass over them, and finally, after the locking protrusions 211 return to their original shape, they can limit the locking blocks 320. When performing simulated acupuncture, the needle body 300 undergoes a series of precise mechanical movements during its passage through the sleeve 200. Initially, as the needle body 300 advances, the locking blocks 320 gradually approach the locking protrusions 211. When the two come into contact, the snap-fit ​​block 320 applies a compressive force to the snap-fit ​​boss 211. Since the snap-fit ​​boss 211 is elastic, it will deform to a certain extent after being compressed, shrinking inward, thereby making room for the snap-fit ​​block 320 to pass through.

[0038] Next, the locking block 320 continues to move forward, smoothly passing the locking protrusion 211. At this point, the locking protrusion 211 is no longer squeezed by the locking block 320 and, due to its own elastic properties, quickly returns to its original shape. The reshaped locking protrusion 211 then abuts against the locking block 320, thereby limiting the locking block 320. This limiting effect fixes the position of the needle body 300 within the cannula 200, preventing unnecessary shaking or displacement of the needle body 300 during treatment, and ensuring the stability and accuracy of the simulated acupuncture.

[0039] In this process, the elasticity of the locking protrusion 211 and the compressive rebound force of the subject's skin work together. The elasticity of the locking protrusion 211 is transmitted to the needle body 300 through the locking block 320, causing the needle body 300 to apply a continuous and stable pressure to the subject's skin. The subject's skin, under the pressure of the needle body 300, generates a natural compressive rebound force. These two forces are balanced and coordinated, enabling the needle body 300 to provide the subject with a more realistic and continuous acupuncture sensation. This realistic acupuncture sensation is crucial for acupuncture clinical trials, as it can simulate the physiological response during actual acupuncture treatment to the greatest extent possible, thereby ensuring more accurate and reliable experimental results and providing strong data support for the research and promotion of acupuncture therapy.

[0040] After the experiment, the needle 300 needs to be withdrawn from the cannula 200. The operation is simple and efficient. The operator simply holds the needle 300 and applies a pulling force to the outside of the cannula 200. As long as this pulling force is greater than the elastic force of the locking protrusion 211, the locking protrusion 211 will deform again, creating a channel for the needle 300 to be withdrawn smoothly from the cannula 200. This design not only facilitates the operator's operation after the experiment but also improves the efficiency of the entire experimental process, reducing unnecessary operational steps and time costs.

[0041] In some specific embodiments, multiple locking protrusions 211 are evenly distributed along the axial direction of the sleeve 200. In actual acupuncture simulation experiments, different treatment methods often require applying different pressures to the needle body 300, thereby causing varying degrees of stimulation responses on the subject's skin. The multiple locking protrusions 211 in this embodiment are designed to address this need. The operator can flexibly move the needle body 300 according to specific experimental requirements, allowing the locking blocks 320 on the needle body 300 to engage with different locking protrusions 211.

[0042] When the operator engages the locking block 320 of the needle body 300 with the locking protrusion 211 away from the subject's skin, the pressure exerted by the needle body 300 on the subject's skin is relatively light. At this time, the subject feels a relatively weak stinging sensation. This simulation is similar to some shallow acupuncture techniques and is suitable for experimental scenarios where the skin surface is more sensitive to stimulation.

[0043] Conversely, if the operator engages the locking block 320 of the needle body 300 with the locking protrusion 211 near the subject's skin, the increased length of the needle body 300 extending into the cannula 200 will significantly increase the pressure exerted by the needle body 300 on the subject's skin. The subject will experience a more intense stinging sensation. This simulation is closer to deep acupuncture techniques and can be used to study the effects of deep tissue stimulation on the human body.

[0044] In this way, the needle 300 can apply varying degrees of pressure to the subject's skin, thereby providing different sensations of pain. This diverse simulation of pain sensations allows the electroacupuncture simulation device of this embodiment to effectively simulate different treatment methods. Whether it is shallow needling, deep needling, or other acupuncture techniques with specific pressure requirements, these can all be achieved by adjusting the engagement of the locking block 320 with different locking protrusions 211. This design greatly expands the application range of the device, ensuring the wide applicability of this embodiment.

[0045] In some specific embodiments, both the sleeve 200 and the snap-fit ​​protrusion 211 are made of conductive metal. The outer wall of the sleeve 200 has a connection port 220 for electrical connection to the power supply line of the power supply device. Through this connection port 220, the current generated by the power supply device can be smoothly introduced into the sleeve 200 and further transmitted to the needle body 300, thereby ensuring the reliability of the electrical connection between the power supply device and the needle body 300. Only with a reliable electrical connection can the current be stably applied to the subject during simulated electroacupuncture treatment, avoiding current interruptions or fluctuations that could affect the accuracy and safety of the experiment.

[0046] In actual connection operations, the connection port 220 can be connected to the power supply connector of the power supply equipment via magnetic attraction. This magnetic connection method has significant advantages. When it is necessary to connect the power supply equipment to the sleeve 200, the operator only needs to bring the power supply connector close to the connection port 220, and the two will automatically attract each other under the action of magnetic force, without the need for complicated alignment and tightening operations, which greatly improves the speed and convenience of connection, and thus improves the efficiency of power connection to the needle body 300. Moreover, the magnetic connection method has a certain self-positioning function, which can ensure that the connection port 220 and the power supply connector are accurately aligned, reducing problems such as poor contact caused by inaccurate connection, and further enhancing the stability and reliability of electrical connection.

[0047] In some specific embodiments, the end of the cannula 200 facing away from the subject's skin is connected to a tapered guide tube 400. The opening area of ​​the guide tube 400 facing away from the cannula 200 is larger than the opening area of ​​the guide tube 400 communicating with the cannula 200. During the actual insertion of the needle 300 into the cannula 200, the guide tube 400 plays a crucial guiding role. Because the needle 300 is typically quite long and thin, it is easy to deviate when manually inserting it into the cannula 200, resulting in the needle 300 failing to accurately enter the cannula 200, or even damaging the needle 300 or the cannula 200. However, with this tapered guide tube 400, its larger outer opening provides a wide entry range for the needle 300. Regardless of the angle from which the operator approaches the needle 300 towards the guide tube 400, the needle 300 can gradually adjust its direction under the guidance of the inner wall of the guide tube 400, ultimately accurately entering the cannula 200 along the guide tube 400. This design significantly reduces the difficulty of inserting the needle 300 into the sleeve 200, minimizing the time and effort spent on repeated attempts and thus significantly improving experimental efficiency. During the operation of the electroacupuncture simulation device, the sleeve 200 is connected to the power supply and carries current. If the guide tube 400 is not made of insulating material, the operator may come into direct contact with the sleeve 200 when inserting the needle 300, causing the current on the sleeve 200 to be conducted to the operator. This not only threatens the operator's personal safety but may also interfere with the normal transmission of current between the needle 300 and the subject due to the operator's body conductivity, thereby interfering with the experimental results and reducing the accuracy of the experiment.

[0048] The guide tube 400, made of insulating material, isolates the operator from the live sleeve 200, effectively reducing the probability of direct contact between the operator and the sleeve 200. Even if the operator accidentally touches the guide tube 400 during operation, no current will be conducted, thus ensuring the operator's personal safety.

[0049] In some specific embodiments, the portion of the cannula 200 closest to the subject's skin is a guide section 230. The inner diameter of the guide section 230 matches the diameter of the needle body 300, and the guide section 230 and the portion containing the locking protrusion 211 are connected by a conical transition. In practical applications, commonly used needle body diameters include 0.35mm and 0.25mm. Considering that the needle body 300 needs a certain amount of room to move during insertion while ensuring guidance accuracy, the inner diameter of the guide section 230 is slightly larger than the diameter of the needle body 300. This size design avoids situations where the needle body 300 is difficult to insert or even gets stuck due to an inner diameter that is too small, and also prevents the needle body 300 from wobbling excessively within the guide section 230 due to an inner diameter that is too large, thus failing to achieve accurate positioning.

[0050] As the needle body 300 moves from the portion containing the engaging boss 211 towards the guide section 230, the conical transition provides smooth guidance. It allows the needle body 300 to gradually adapt to the changes in the inner diameter of the guide section 230 during movement, reducing impact and jamming caused by sudden diameter changes and ensuring smooth movement of the needle body 300. For example, during rapid insertion of the needle body 300 into the sleeve 200, the conical transition effectively prevents bending or deviation of the needle body 300 due to abrupt diameter changes, ensuring that the needle body 300 accurately enters the guide section 230 along a predetermined path.

[0051] In acupuncture simulation experiments, the needle 300 needs to be accurately pressed against a predetermined location on the subject's skin to simulate a real and effective acupuncture treatment effect. The presence of the guide segment 230 allows the needle 300 to reach the predetermined location more precisely after passing through the guide segment 230 of the cannula 200. Guided by the guide segment 230, the needle 300 can avoid positional deviations caused by various factors during insertion, thus ensuring that each simulated puncture is accurately pressed against the target location. This is crucial for experiments studying the effects of different acupuncture points, different needling depths, and angles on treatment effects, greatly improving the accuracy of the experiments and providing more reliable data support for the research and application of acupuncture therapy.

[0052] In some specific embodiments, the sleeve 200 is threadedly installed in the operating channel 110, which facilitates the replacement of different specifications of sleeve 200 on the base 100 as needed to adapt to more test scenarios. It also facilitates the adjustment of the position of the sleeve 200 in the axial direction of the operating channel 110 by driving the relative rotation of the sleeve 200 and the operating channel 110, thereby fine-tuning the locking position of the locking boss 211 in the sleeve 200 against the needle body 300, and realizing accurate adjustment of the pressure of the needle body 300 pressing on the subject's skin.

[0053] In some specific embodiments, the end of the needle body 300 away from the blunt needle tip 310 is provided with a grip handle 330. The grip handle 330 is made of insulating material to facilitate the operator's grip and to prevent the current on the needle body 300 from being conducted to the operator when the operator needs to fine-tune the needle body 300 during the needle body 300 is energized. This ensures the normal transmission of current between the needle body 300 and the subject and ensures the accuracy and safety of this embodiment during use.

[0054] In some specific embodiments, the end face of the base 100 near the subject's skin is provided with a flexible connecting plate 120. The projected area of ​​the connecting plate 120 on the subject's skin is larger than the projected area of ​​the base 100 on the subject's skin. The connecting plate 120 is bonded to the subject's skin by an adhesive pad 121, which facilitates a reliable connection between the base 100 and the skin.

[0055] In some specific embodiments, the base 100 is provided with multiple operating channels 110, and the angle between the axis of the operating channel 110 and the plane where the subject's skin is located is α. The value of α is 15°, 30°, 45°, 60° and 90°, so as to ensure that this embodiment can conduct experiments on acupuncture punctures at multiple angles.

[0056] When α is 15° or 30°, an acute angle is formed. This angle setting is commonly used in the flat insertion test. Flat insertion is a special needle insertion method suitable for certain body parts. For example, in the scalp area, such as Baihui and Sishencong acupoints, due to the large curvature of the skull, a flat insertion angle of 15° or 30° is more suitable to ensure that the needle can be inserted close to the scalp and achieve a good stimulation effect. This ensures that the needle advances smoothly on the surface of the scalp and avoids failure to adhere to the scalp or excessive insertion due to an excessively large angle. Another example is the danger triangle area of ​​the face, including acupoints such as Yingxiang and Dicang. The skin in this area is thin and rich in blood vessels. If the needle is inserted at too large an angle or too deeply, it can easily lead to serious consequences such as infection. Therefore, a very small angle flat insertion method must be used to avoid the risks of deep insertion. Furthermore, in the chest and rib area of ​​children or thin individuals, because the chest tissue is relatively thin, using a small angle flat insertion can prevent the needle from accidentally entering the chest cavity and ensure the safety of the subject.

[0057] When α is 45°, a mid-inclination angle is formed, which is commonly used in routine oblique needling tests. Oblique needling is a commonly used needling method in acupuncture, adaptable to the anatomical characteristics of different body parts. In the neck, for acupoints such as Fengchi and Tianzhu, where important structures like the vertebral artery and medulla oblongata are located, a 45° oblique needling effectively avoids these critical areas, reducing the risk of nerve and blood vessel damage. For acupoints in the shoulder joint, such as Jianyu and Jianzhen, due to the unique glenohumeral joint surface, a 45° oblique needling better adapts to the joint's shape, allowing the needle to accurately stimulate the acupoint and improve therapeutic efficacy. Similarly, for some acupoints in the chest, such as Tanzhong and Qimen, a 45° oblique needling is a safe and effective method to prevent the needle from entering the chest cavity.

[0058] When α is 60°, this angle is suitable for areas requiring deeper stimulation. For example, the deep gluteal muscles, including acupoints like Huantiao and Zhibian, are relatively thick. To achieve effective stimulation, the needle needs to penetrate from the gluteus maximus to the piriformis. A 60° angle allows the needle to better penetrate the target muscle tissue, maximizing the therapeutic effect of acupuncture. In the lumbosacral region, such as acupoints like Dachangshu and Baliao, which span multiple vertebral planes, a 60° angle allows for more accurate stimulation of the relevant acupoints while avoiding unnecessary damage to surrounding tissues.

[0059] When α is 90°, a vertical angle is formed, which is commonly used in standard perpendicular insertion tests. Perpendicular insertion is one of the most basic acupuncture needle insertion methods, suitable for areas with relatively flat body surfaces and no bony obstructions. For example, acupoints such as Guanyuan and Tianshu in the flat abdominal area, where there are no obvious bony barriers, allow the needle to directly act on the acupoint, achieving a good stimulation effect. In areas with abundant muscle in the limbs, such as Zusanli and Heyang, 90° perpendicular insertion prevents the needle from tilting due to insufficient angle, ensuring that the device remains fixed under dynamic body positions (such as head turning, limb movement, etc.), guaranteeing the smooth progress of acupuncture treatment and the accuracy of experimental data.

[0060] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0061] 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. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An electroacupuncture simulation device, characterized in that, include: A base (100) is used to fit and fix the subject's skin, and the base (100) is provided with an operation channel (110). A sleeve (200) is installed in the operating channel (110), and a snap-fit ​​part (210) is provided inside the sleeve (200). The needle body (300) is inserted inside the sleeve (200) and is electrically connected to the power supply equipment; When the blunt needle tip (310) of the needle body (300) passes through the cannula (200) and abuts against the skin of the subject, the locking part (210) can limit the relative position of the needle body (300) with respect to the cannula (200).

2. The electroacupuncture simulation device according to claim 1, characterized in that, The inner wall of the sleeve (200) is provided with an elastic snap-fit ​​boss (211), which is used to form the snap-fit ​​part (210). The side wall of the needle body (300) is provided with a snap-fit ​​block (320) that engages with the snap-fit ​​boss (211). When the needle body (300) passes through the sleeve (200), the snap-fit ​​block (320) can first squeeze the snap-fit ​​boss (211), then pass over the snap-fit ​​boss (211), and finally, after the snap-fit ​​boss (211) returns to its shape, it can limit the snap-fit ​​block (320).

3. The electroacupuncture simulation device according to claim 2, characterized in that, The snap-fit ​​bosses (211) are evenly distributed along the axial direction of the sleeve (200).

4. The electroacupuncture simulation device according to claim 2, characterized in that, Both the sleeve (200) and the snap-fit ​​boss (211) are made of conductive metal. The outer wall of the sleeve (200) is provided with a connection port (220), which is used to make an electrical connection with the power supply line of the power supply equipment.

5. The electroacupuncture simulation device according to claim 4, characterized in that, The end of the sheath (200) away from the subject's skin is connected to a tapered guide tube (400). The opening area of ​​the guide tube (400) away from the sheath (200) is larger than the opening area of ​​the guide tube (400) connected to the sheath (200). The guide tube (400) is made of insulating material.

6. The electroacupuncture simulation device according to claim 2, characterized in that, The portion of the cannula (200) closest to the subject's skin is a guide section (230). The inner diameter of the guide section (230) matches the diameter of the needle body (300). The guide section (230) and the portion containing the snap-fit ​​boss (211) are connected by a conical transition.

7. The electroacupuncture simulation device according to claim 1, characterized in that, The sleeve (200) is installed in the operating channel (110) by means of a threaded connection.

8. The electroacupuncture simulation device according to any one of claims 1 to 7, characterized in that, The needle body (300) has a grip handle (330) at the end away from the blunt needle tip (310), and the grip handle (330) is made of insulating material.

9. The electroacupuncture simulation device according to any one of claims 1 to 7, characterized in that, The base (100) has a flexible connecting plate (120) on the end face near the subject's skin. The projected area of ​​the connecting plate (120) on the subject's skin is larger than the projected area of ​​the base (100) on the subject's skin. The connecting plate (120) is bonded to the subject's skin by an adhesive pad (121).

10. The electroacupuncture simulation device according to any one of claims 1 to 7, characterized in that, The base (100) is provided with multiple operation channels (110), and the angle between the axis of the operation channel (110) and the plane where the subject's skin is located is α, and the value of α is 15°, 30°, 45°, 60° and 90°.

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