A needle direction, angle and depth positioning device

Abstract

The application relates to a needle insertion direction, angle and depth positioning device, belonging to the technical field of acupuncture auxiliary instruments, which solves the technical deficiency that the existing acupuncture auxiliary instruments cannot simultaneously and accurately position the needle insertion direction, angle and depth, and adopts the technical means of a base, an adjusting part and a needle insertion cylinder. The base is a transparent plate-shaped structure, which is provided with a base hole and a needle insertion direction scale. The adjusting part is a plate-shaped structure, which is vertically and movably hinged on the base through a heart connecting ring, and is provided with a needle insertion angle scale and a plurality of needle insertion depth arc lines arranged at equal intervals. The lower end of the needle insertion cylinder is movably hinged at the center of the heart connecting ring of the adjusting part, the upper end of the needle insertion cylinder is provided with a pointer, and the pointer is movably connected with a needle positioning part through a positioning adjusting assembly. The application standardizes the needle insertion operation, can assist doctors to simultaneously and accurately position the needle insertion direction, angle and depth, and has the advantages of simple structure, convenient operation and high positioning precision.

Description

Technical Field

[0001] This invention relates to the field of auxiliary instruments for acupuncture in traditional Chinese medicine, and more specifically to a positioning device that can simultaneously and accurately locate the direction, angle and depth of acupuncture needle insertion. Background Technology

[0002] In acupuncture treatment, mastering the correct needling direction, angle, and depth is crucial for obtaining the needling sensation, applying tonification and sedation techniques, maximizing the needling effect, improving therapeutic efficacy, and preventing acupuncture accidents. The correct selection of acupoints refers not only to their location on the skin surface but must also be combined with the correct needling direction, angle, and depth to achieve the therapeutic effect. Therefore, acupoints should not be simply viewed as small points but rather as three-dimensional concepts. Clinically, needling the same acupoint at different directions, angles, and depths will result in variations in the tissue structures reached, the resulting needling sensation, and the therapeutic effect.

[0003] Existing acupuncture treatment aids, such as the acupuncture auxiliary device for controlling the needling angle disclosed in authorization announcement number CN213099410U, only have the ability to precisely control the needling angle, but cannot simultaneously achieve precise positioning of the needling direction and depth. Currently, there is no device in the industry that can assist doctors in simultaneously and precisely positioning the needling direction, angle, and depth, nor can existing acupuncture aids or methods achieve standardized acupuncture procedures. In actual treatment, doctors can only adjust and determine the direction, angle, and depth of the needling based on their clinical experience and the proficiency of their needling techniques. This easily leads to problems such as inaccurate or non-standard needling operations affecting the acupuncture treatment effect or even causing accidental injury to the patient.

[0004] Therefore, in order to improve the accuracy of acupuncturists in locating the direction, angle, and depth of acupuncture needles, standardize acupuncture procedures, and ensure the effectiveness of acupuncture treatment, it is necessary to provide clinicians performing acupuncture treatment with a positioning device that can simultaneously and accurately locate the direction, angle, and depth of acupuncture needles. Summary of the Invention

[0005] In summary, the purpose of this invention is to solve the technical problem that existing acupuncture auxiliary devices cannot simultaneously and accurately position the direction, angle, and depth of acupuncture, which makes it impossible to standardize acupuncture operations and easily affects the acupuncture treatment effect due to human operation factors, or even causes medical accidents. The invention provides an improved positioning device that can simultaneously and accurately position the direction, angle, and depth of acupuncture needles.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A device for positioning the direction, angle, and depth of acupuncture, characterized in that it comprises a base, an adjustment part, and an injection cylinder. The base is a transparent plate-like structure with a base hole and acupuncture direction scale concentric with the base hole. The adjustment part is a plate-like structure, vertically hinged to the base by a hollow connecting ring that is rotatably engaged in the base hole. It has acupuncture angle scale centered at the hinge point of the adjustment part and several equally spaced acupuncture depth arcs. The injection cylinder is located on one side of the surface of the adjustment part and is a hollow cylindrical structure with an inner diameter not less than the maximum diameter of acupuncture needles. Its lower end is movably hinged to the center of the connecting ring of the adjustment part, and its upper end has an axially extending pointer along the surface of the adjustment part. A fixed needle part coaxial with the injection cylinder is movably connected to the pointer via a positioning adjustment component.

[0008] Furthermore, the base is a transparent semi-circular plate structure, the base hole is located at its center, and the degree range of the needle puncture direction scale is 0° to 180°.

[0009] Furthermore, the adjustment part is a transparent fan-shaped plate structure with a central angle of not less than 90°, the connecting ring is horizontally fixed at its center, and the degree range of the needle puncture angle scale matches its central angle.

[0010] Furthermore, the radius of the base of the semi-circular plate structure is the same as the radius of the adjustment part of the fan-shaped plate structure.

[0011] Furthermore, the adjustment part includes a first plate and a second plate that are parallel to each other in a stepped shape. The first plate is a fan-shaped surface with the hinge of the adjustment part as the center. Its radius matches the length of the injection syringe. Its arc-shaped edge is connected to the second plate through an arc-shaped folding platform. The lower end of the injection syringe is movably hinged to the center of the first plate. The needle penetration depth arc is set on the second plate. The pointer is located on one side of the second plate. Its bottom end is connected to the injection syringe through a connecting part that movably abuts against the folding platform.

[0012] Furthermore, a damping pad is provided between the connecting part and the folding platform to provide frictional damping so that the pointer can be adjusted at a fixed angle along the needle puncture angle scale with the injection syringe.

[0013] Furthermore, the second plate surface has a horizontally positioned needle direction indicator rod at the bottom edge of the base surface, which is perpendicular to the plate surface and whose end corresponds to the axis of the injection cylinder.

[0014] Furthermore, the positioning adjustment component includes a guide groove extending along the length of the pointer, a plurality of positioning grooves arranged at equal intervals along the length of the guide groove and corresponding one-to-one with the arc of the needle puncture depth, a slider slidably connected to the pointer through the guide groove, and an elastic top bead assembly movably disposed on the slider and correspondingly abutting against the positioning groove to lock the slider on the pointer, wherein the fixed needle part is connected to the slider.

[0015] Furthermore, the adjustment part has an arc-shaped boss protruding towards the upper end of the pointer on its edge, and the upper end of the pointer has a clearance to avoid the arc-shaped boss. The upper end of the guide groove is connected to the clearance.

[0016] Furthermore, the needle fixing part includes an outer frame, the middle of which is provided with a fitting hole with a diameter not less than the inner diameter of the needle tube. A needle fixing plug made of soft rubber that can elastically deform under force is provided in the fitting hole. A needle fixing hole with a diameter not greater than the minimum diameter of the acupuncture needle is opened in the middle of the needle fixing plug.

[0017] The beneficial effects of this invention are as follows:

[0018] Firstly, in actual operation, the doctor can adjust the adjustable part, which is hinged to the base, to the accurate position according to the corresponding degree marked on the acupuncture direction scale, thereby precisely positioning the acupuncture needle's insertion direction. The doctor can also adjust the needle insertion cylinder and pointer, which are hinged to the adjustable part, to the accurate position according to the corresponding degree marked on the acupuncture angle scale, thereby precisely positioning the acupuncture needle's insertion angle. Furthermore, according to the corresponding depth marked on the acupuncture depth arc, the acupuncture needle is accurately inserted into the patient's corresponding acupoint through the injection cylinder, connecting ring, and base hole according to the precisely positioned direction, angle, and depth via the positioning adjustment component and the needle fixing part. This assists the doctor in achieving standardized acupuncture positioning operations during acupuncture treatment, ensuring that practitioners with varying clinical experience can simultaneously and accurately position the needle direction, angle, and depth using this device. This avoids the adverse effects of human operation on the acupuncture treatment effect and prevents patient injury caused by improper needle positioning, improving the doctor's accuracy and safety in acupuncture and enhancing the effectiveness of acupuncture treatment.

[0019] Meanwhile, the base of the device of this invention is a transparent plate structure, which makes it easy for doctors to place it on the patient's skin and align the corresponding acupoints with the holes in the base during actual use. At the same time, it is also easy for doctors to observe the relative positions between the patient's acupoints through the transparent base, which is conducive to doctors adjusting the needle insertion position according to the actual situation of different patients. This makes it easier for doctors to make targeted adjustments to the needle insertion position for different patients, and at the same time, it further improves the accuracy of needle positioning during the acupuncture treatment process.

[0020] Furthermore, the fixed needle part of this invention is movably connected to the pointer via a positioning adjustment component, and the fixed needle part is coaxial with the needle insertion cylinder. In actual use, the main body of the acupuncture needle is fixed by the fixed needle part, and the needle tip passes sequentially through the fixed needle part and the needle insertion cylinder, and is inserted into the patient's acupoint via the connecting ring and the base hole, ensuring that the actual insertion direction and angle of the acupuncture needle are consistent with the needle insertion cylinder. During the needle insertion operation, the doctor can use the positioning adjustment component to limit the fixed needle part to the designated position on the pointer according to the position of the acupuncture depth arc on the adjustment part, thereby ensuring the precise positioning of the insertion depth of the acupuncture needle.

[0021] In summary, the present invention has a simple overall structure, a relatively small number of components, and low production costs, making it easy to promote and use in the industry. It can also achieve precise positioning of needle insertion direction, angle, and depth simultaneously, with high positioning accuracy, ease of operation, and good auxiliary effect. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0024] Figure 3 This is an exploded view of the structure of the adjusting part, the syringe, and the pointer of the present invention;

[0025] Figure 4 This is a magnified schematic diagram of a portion of the syringe and pointer of the present invention. Figure 1 ;

[0026] Figure 5 This is a magnified schematic diagram of a portion of the syringe and pointer of the present invention. Figure 2 ;

[0027] Figure 6 This is an exploded view of the structure of the needle fixing part and the positioning adjustment component of the present invention.

[0028] In the diagram: 1. Base, 11. Base hole, 12. Needle direction scale, 13. Center mark, 2. Adjustment part, 21. Extension part, 22. Hinge hole, 23. Needle angle scale, 24. Needle depth arc, 25. First plate surface, 26. Second plate surface, 261. Arc-shaped boss, 27. Folding platform, 28. Needle direction indicator rod, 3. Connecting ring, 4. Injection syringe, 5. Pin, 6. Pointer, 61. Connecting part, 62. Damping pad, 63. Guide groove, 64. Positioning groove, 65. Clearance, 7. Positioning adjustment assembly, 71. Slider, 711. Snap-fit ​​part, 712. Snap-fit ​​block, 713. Accommodating cavity, 72. Positioning top bead, 73. Return spring, 8. Fixed needle part, 81. Outer frame, 811. Fitting hole, 82. Connecting rod, 83. Fixed needle plug, 831. Fixed needle hole. Detailed Implementation

[0029] The structure of the present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0030] It should be noted that this embodiment is only a preferred implementation of the present invention and should not be construed as a limitation of the present invention.

[0031] Reference Figures 1 to 3 As shown, the present invention provides a device for positioning the direction, angle, and depth of acupuncture, comprising a base 1 made of a single piece of transparent material in a plate-like structure. The base 1 is preferably semi-circular in shape, with a through-hole 11 at its center. The diameter of the hole 11 is preferably more than five times the maximum diameter of the acupuncture needle. Acupuncture direction graduations 12, concentric with the hole 11, are evenly marked on the upper surface of the base 1 near its arc-shaped edge. The graduations 12 range from 0° to 180°.

[0032] Specifically, a plate-type adjustment part 2 is vertically hinged to the base 1. The shape of the adjustment part 2 is preferably a sector with a central angle of 90°, and it is made of transparent material in one piece. A hollow connecting ring 3 is horizontally fixed at the center of the adjustment part 2 and can be rotatably engaged in the hole 11 of the base. The transparent sector-shaped adjustment part 2 is vertically hinged to the base 1 through the hollow connecting ring 3.

[0033] Specifically, the adjustment part 2 has an extension 21 at its center position that is fixedly connected to the connecting ring 3 and located in the hollow inner cavity of the connecting ring 3. The center of the adjustment part 2 is located on the extension 21, and its center is on one side of the center of the connecting ring 3. A hinge hole 22 is horizontally opened through the center position of the adjustment part 2.

[0034] Preferably, the radius of the fan-shaped adjustment part 2 is equal to the radius of the semi-circular base 1, and the arc edges of the two can maintain a vertical alignment after connection, which not only beautifies the appearance of the invention, but also reduces the corners and prevents scratches.

[0035] Specifically, needle angle scales 23 are uniformly marked on the surface of the adjustment part 2 near its arc-shaped edge, with the same center as the scale. The degree range of the needle angle scales 23 is 0° to 90°. Between the center of the adjustment part 2 and the needle angle scales 23, several needle depth arcs 24 with the same center as the adjustment part 2 are also evenly arranged.

[0036] Specifically, a hollow cylindrical injection syringe 4 is movably hinged to one side of the surface of the adjusting part 2 at the center position. The inner diameter of the injection syringe 4 is not less than the maximum diameter of the acupuncture needle. Its lower end is movably hinged to the center of the adjusting part 2 through a pin 5 that is movably located in the hinge hole 22 of the extension part 21. After hinge, the hinge point of the injection syringe 4 is exactly located at the center of the connecting ring 3, and the hinge point of the injection syringe 4 is concentric with the acupuncture direction scale 12 on the base 1, thereby ensuring that the injection syringe 4 can accurately adjust its swing direction according to the acupuncture direction scale 12 with the adjusting part 2.

[0037] Specifically, a pointer 6 extending along the surface of the adjustment part 2 is provided on the upper end of the syringe 4 near the surface of the adjustment part 2. A fixed needle part 8 coaxial with the syringe 4 is movably connected to the pointer 6 by means of the positioning adjustment component 7.

[0038] Preferably, the top of pointer 6 is located outside the needle angle scale 23, so that the adjustment angle of pointer 6 can be easily observed during use, ensuring the accuracy of pointer 6 angle adjustment.

[0039] It should be noted that the placement of the needle angle scale 23 on one side of the arc-shaped edge of the adjustment part 2 in this embodiment is only a preferred embodiment of the present invention. This method can maximize the arc-shaped dispersion of the needle angle scale 23, making it easier to increase the scale size and facilitate observation. In other embodiments, the needle angle scale 23 can be placed on the side closer to the center of the adjustment part 2, serving only to indicate the swing angle of the needle tube or the pointer 6.

[0040] By adopting the above technical solution, the present invention has the following beneficial effects.

[0041] First, in actual operation, the doctor can adjust the adjusting part 2, which is movably hinged to the base 1, to the accurate position according to the corresponding degree marked on the acupuncture direction scale 12, thereby accurately positioning the acupuncture needle's insertion direction. The doctor can also adjust the needle insertion cylinder and pointer 6, which are movably hinged to the adjusting part 2, to the accurate position according to the corresponding degree marked on the acupuncture angle scale 23, thereby accurately positioning the acupuncture needle's insertion angle. Alternatively, the acupuncture needle can be accurately inserted into the corresponding acupoint of the patient through the injection syringe 4, connecting ring 3, and base hole 11 at the corresponding depth marked by the acupuncture depth arc 24, via the positioning adjustment component 7 and the needle fixing part 8, according to the precisely positioned direction, angle, and depth. This assists doctors in achieving standardized acupuncture positioning operations during acupuncture treatment, ensuring that acupuncturists with different clinical experience can use the device of this invention to achieve precise positioning operations of the acupuncture direction, angle, and depth simultaneously. This avoids the adverse effects of human operation factors on the acupuncture treatment effect and also avoids the problem of patient injury caused by improper acupuncture positioning, improving the accuracy and safety of doctors' acupuncture, and improving the effect of acupuncture treatment.

[0042] Meanwhile, the base 1 of the device of the present invention has a transparent plate structure, which makes it easy for doctors to place it on the patient's skin and align the corresponding acupoints with the holes 11 on the base during actual use. At the same time, it is also easy for doctors to observe the relative positions between the patient's acupoints through the transparent base 1, which is conducive to doctors adjusting the needle insertion position according to the actual situation of different patients. It is also convenient for doctors to make targeted adjustments to the needle insertion position for different patients. At the same time, it further improves the accuracy of needle positioning during the acupuncture treatment operation.

[0043] Furthermore, the adjustment part 2 of the device of the present invention is also made of transparent material, which makes it convenient for the acupuncturist to observe the swing direction of the adjustment plate, the swing angle of the syringe 4 and the pointer 6, and the depth of the fixed needle part 8 from different positions on both sides during actual operation. This makes it easier for the doctor to observe the needle insertion direction, angle and depth, making the needle insertion operation more convenient and accurate.

[0044] Furthermore, the fixed needle part 8 of the present invention is movably connected to the pointer 6 through the positioning adjustment component 7, and the fixed needle part 8 is coaxial with the needle insertion cylinder. In actual use, the main body of the acupuncture needle is fixed by the fixed needle part 8, and the tip of the acupuncture needle passes through the fixed needle part 8 and the needle insertion cylinder in sequence, and is inserted into the patient's acupoint through the connecting ring 3 and the base hole 11, ensuring that the actual insertion direction and angle of the acupuncture needle are consistent with the needle insertion cylinder. Moreover, the acupuncture depth arc 24 is concentric with the adjustment part 2. During the swinging of the needle insertion cylinder and the pointer 6 on one side of the adjustment part 2, it can be ensured that the actual position on the pointer 6 can correspond to the corresponding acupuncture depth arc 24. During the needle insertion operation, the doctor can limit the fixed needle part 8 to the designated position on the pointer 6 through the positioning adjustment component 7 according to the position of the acupuncture depth arc 24 on the adjustment part 2, thereby ensuring the accurate positioning of the insertion depth of the acupuncture needle.

[0045] In addition, the present invention designs the base 1 as a semi-circular structure and the adjustment part 2 as a fan-shaped structure with a central angle of 90°, and the radii of the two are equal. This design can minimize the material cost of the device of the present invention, and make the overall appearance of the device of the present invention smoother and more pleasing to the eye, reduce unnecessary sharp corners, and improve safety.

[0046] In summary, the present invention has a simple overall structure, a relatively small number of components, and low production costs, making it easy to promote and use in the industry. It can also achieve precise positioning of needle insertion direction, angle, and depth simultaneously, with high positioning accuracy, ease of operation, and good auxiliary effect.

[0047] As a further improvement to the technical solution proposed by the present invention to solve the technical problem, the following technical means are also included.

[0048] Furthermore, refer to Figures 3 to 5 As shown, the adjustment part 2 of the present invention includes a first plate surface 25 and a second plate surface 26 that are parallel to each other in a stepped shape. The first plate surface 25 is a fan-shaped surface similar in shape to the adjustment part 2, and is concentric with the adjustment part 2. Its radius matches the length of the syringe 4. Its arc-shaped edge is connected to the second plate surface 26 through an arc-shaped folding platform 27. The extension part 21 is located at the center of the first plate surface 25. The lower end of the syringe 4 is movably hinged to the center of the first plate surface 25.

[0049] Specifically, the needle depth arc 24 is evenly distributed on the second plate surface 26, and the pointer 6 is located on one side of the second plate surface 26. The bottom end of the pointer 6 is integrally connected to the upper end of the injection cylinder 4 through the connecting part 61 that moves against the folding table 27.

[0050] Furthermore, refer to Figure 4As shown, a damping pad 62 is provided between the connecting part 61 and the folding platform 27 on the pointer 6 of the present invention to provide frictional damping so that the pointer 6 can be adjusted at a fixed angle along the needle insertion angle scale 23 with the syringe 4. The damping pad 62 is preferably made of soft rubber material and is fixedly bonded to the bottom surface of the connecting part 61 corresponding to the folding platform 27. After the syringe 4 and the pointer 6 are hinged to the adjusting part 2, the connecting part 61 moves against the folding platform 27 through the damping pad 62, so that a certain damping is generated between the connecting part 61 and the folding platform 27. This provides appropriate frictional damping during the manual movement of the pointer 6 and the syringe 4 according to the needle insertion angle scale 23 by the doctor, preventing the pointer 6 and the syringe 4 from swinging freely around the hinge point of the syringe 4 under the action of gravity after adjustment. This prevents subsequent needle insertion angle positioning of the syringe 4 and the pointer 6 from being affected by the doctor's subsequent needle insertion operations or the patient's own movements, ensuring the accuracy and reliability of the needle insertion angle positioning of the present invention.

[0051] Furthermore, refer to Figure 1 and Figure 2 As shown, because the adjustment part 2 of the present invention adopts a folding table structure design, and in order to expand the adjustment range of the needle position 8, the length of the pointer 6 is significantly greater than the length of the syringe 4. Therefore, the size of the second plate surface 26 is correspondingly significantly larger than the size of the first plate surface 25. The first plate surface 25, as the center of the adjustment part 2, is closer to the center of the base 1 than the second plate surface 26. As the second plate surface 26, which can swing along the needle direction scale 12, cannot have its end aligned with the axis of the syringe 4 due to the presence of the folding table 27. Therefore, in actual operation, the bottom edge of the second plate surface 26 that moves against the surface of the base 1 cannot be used as the reference for determining the needle insertion direction of the syringe 4. To solve the above problem, the present invention provides a needle direction indicator rod 28, which is perpendicular to the second plate surface 26 and whose end is aligned with the axis of the syringe 4, at the position corresponding to the needle direction scale 12 on the bottom edge of the second plate surface 26.

[0052] Since the end of the needle direction indicator 28 corresponds to the axis of the syringe 4, the acupuncturist can easily and accurately determine the needle direction of the syringe 4 based on the position of the end of the needle direction indicator 28 during actual use, thus ensuring the accuracy and reliability of the needle direction positioning of the present invention.

[0053] Furthermore, refer to Figures 3 to 6As shown, the positioning adjustment component 7 of the present invention includes guide grooves 63 corresponding to the two side walls of the pointer 6 and extending along the length direction of the pointer 6, a plurality of positioning grooves 64 arranged at equal intervals along the length direction of the guide grooves 63 on the front side of the pointer 6 and corresponding one-to-one with a plurality of needle depth arcs 24 provided on the second plate surface 26, a slider 71 slidably connected to the pointer 6 through the guide grooves 63, and an elastic top bead assembly movably disposed at the rear position of the slider 71 and correspondingly abutting against the positioning grooves 64 to lock the slider 71 on the pointer 6, and the fixed needle part 8 connected to the front position of the slider 71.

[0054] Specifically, refer to Figure 6 As shown, the slider 71 includes a latching part 711 located at its rear, which can be latched onto both sides of the pointer 6. A latching block 712 corresponding to the inner wall of the latching part 711 is provided, which is fitted into the guide groove 63. The rear body of the slider 71 has a receiving cavity 713 located between the two latching parts 711 for accommodating the elastic ball assembly. The elastic ball assembly includes a positioning ball 72 and a return spring 73. The return spring 73 is fitted into the receiving cavity 713 of the slider 71, and the positioning ball 72 overcomes the elastic force of the return spring 73 and is positioned at the opening of the receiving cavity 713.

[0055] Preferred, refer to Figure 3 and Figure 5 As shown, to facilitate the assembly of the slider 71 and the elastic ball assembly onto the pointer 6 and to prevent accidental sliding of the slider 71 from sliding off the top of the pointer 6 during use, the present invention provides an arc-shaped boss 261 that slightly protrudes towards the pointer 6 at the outer arc-shaped edge of the second plate surface 26 of the adjustment part 2. The needle angle scale 23 is set on the arc-shaped boss 261. The thickness of the pointer 6 is greater than the thickness of the arc-shaped boss 261. Its upper end is inside the outer edge of the arc-shaped boss 261, and a clearance 65 is provided on one side of its upper end to avoid the arc-shaped boss 261. The upper end of the guide groove 63 communicates with the clearance 65.

[0056] In actual assembly, the return spring 73 is first placed into the receiving cavity 713 of the slider 71, then the positioning ball 72 is pressed into the receiving cavity 713 and the return spring 73 is contracted. Then the slider 71 is inserted downward into the guide groove 63 through the clearance 65 at the upper end of the pointer 6. After the slider 71 and the elastic ball assembly are movably connected to the pointer 6, the pointer 6 and the injection syringe 4 are hinged to the adjusting part 2. After hinge, the injection syringe 4 and the pointer 6 move against the first plate surface 25 and the second plate surface 26 respectively, so that the clearance 65 at the upper end of the pointer 6 fits against the arc-shaped boss 261 on the edge of the first plate surface 25. The arc-shaped boss 261 prevents the slider 71 from sliding out from the upper end of the pointer 6, which facilitates the assembly of the slider 71 and the elastic ball assembly and prevents the slider 71 from slipping off. The structure is simple, the assembly is convenient, and the reliability is high.

[0057] Furthermore, this invention achieves precise positioning of the fixed needle part 8, which is connected to the slider 71 and is coaxial with the injection syringe 4, by using a positioning groove 64 on the pointer 6 that corresponds one-to-one with the needle depth arc 24, a slider 71 that is slidably connected to the pointer 6 via a guide groove 63, and an elastic top bead assembly set in the receiving cavity 713 of the slider 71. During operation, a slight force can make the slider 71 precisely positioned and adjusted on the pointer 6 according to the position of the positioning groove 64 and the needle depth arc 24. The structure is simple, reliable, low in manufacturing cost, and easy to operate.

[0058] Furthermore, refer to Figure 6 As shown, the fixed needle part 8 of the present invention includes an outer frame 81, which is fixedly connected to the front end of the slider 71 by a connecting rod 82 parallel to the connecting part 61. The middle part is provided with a fitting hole 811 with a diameter not less than the inner diameter of the needle barrel. A fixed needle plug 83 made of soft rubber that can elastically deform under force is provided in the fitting hole 811. A fixed needle hole 831 with a diameter not greater than the minimum diameter of the acupuncture needle is opened at the central axis of the fixed needle plug 83.

[0059] Because acupuncture needles vary in specifications, models, lengths, and thicknesses, the needle tip can be used as a reference when determining the insertion depth to determine the position of the fixed needle part 8 on the needle body. In actual use, after adjusting the insertion direction and angle of the adjustment part 2 and the syringe 4, the acupuncturist inserts the acupuncture needle downwards into the fixed needle hole 831 of the fixed needle plug 83, overcoming the resistance of the fixed needle plug 83 to move the fixed needle part 8 to the predetermined position on the needle body. Then, the slider 71 is moved downwards along the pointer 6 until the fixed needle part 8 moves along the pointer 6 to the designated positioning groove 64 according to the acupuncture depth arc 24, so that the needle tip of the acupuncture needle is inserted into the corresponding acupoint of the patient according to the set direction, angle, and depth.

[0060] The diameter of the fitting hole 811 of the outer frame 81 of the needle fixing part 8 of the present invention is not less than the inner diameter of the needle tube, which ensures that the needle fixing part 8 of the present invention can effectively hold the largest size acupuncture needle with the largest needle body diameter. The diameter of the needle fixing hole 831 of the needle fixing plug 83 is not greater than the smallest diameter of the acupuncture needle, which ensures that the needle fixing part 8 of the present invention can effectively hold the smallest size acupuncture needle with the smallest needle body diameter. This ensures that the present invention can be applied to acupuncture treatment needles of all specifications and models. Moreover, the use of the elastic needle fixing plug 83 to clamp the acupuncture needle provides good clamping stability and is applicable to acupuncture needles of various sizes and diameters. It has strong applicability, simple structure, low cost, convenient disassembly and assembly, and can be replaced according to the usage.

[0061] Furthermore, refer to Figure 1As shown, the upper surface of the base 1 of the present invention is provided with a midline 13 extending along the 90° mark of the acupuncture direction scale 12. In actual use, doctors can use the midline 13 as the reference axis to locate the patient's acupoints, thereby facilitating the doctor's needle insertion and acupuncture.

[0062] The above embodiments are merely for illustrating one specific implementation of the present invention and are not intended to limit the scope of the invention. Based on the principles of the present invention, other adjustments or modifications to the base 1, adjustment part 2, syringe 4, needle direction scale 12, connecting ring 3, needle angle scale 23, needle depth arc 24, pointer 6, positioning adjustment component 7, and needle fixing part 8 can be derived and summarized, and will not be listed here. Any modifications, substitutions, or improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A device for positioning the direction, angle, and depth of needle insertion, characterized in that: The device includes a base (1), an adjustment section (2), and an injection syringe (4). The base (1) is a transparent plate structure with a base hole (11) and a needle direction scale (12) concentric with the base hole (11). The adjustment section (2) is a plate structure, vertically hinged to the base (1) by rotating and engaging a hollow connecting ring (3) inside the base hole (11). It has a needle angle scale (23) centered at the hinge point of the adjustment section (2) and several equally spaced needle depth arcs (24). The injection syringe (4) is located on one side of the surface of the adjustment section (2), and is a hollow cylindrical structure with an inner diameter not less than the maximum diameter of the acupuncture needle. Its lower end is hinged to the center of the connecting ring (3) of the adjustment section (2), and its upper end has a pointer (6) extending axially along the surface of the adjustment section (2). The pointer (6) is movably connected to a fixed needle part (8) coaxial with the syringe (4) via a positioning adjustment component (7); the adjustment part (2) includes a first plate surface (25) and a second plate surface (26) that are parallel to each other in a stepped shape. The first plate surface (25) is a fan-shaped surface with the hinge of the adjustment part (2) as the center. Its radius matches the length of the syringe (4). Its arc-shaped edge is connected to the second plate surface (26) via an arc-shaped folding platform (27). The lower end of the syringe (4) is movably hinged to the center of the first plate surface (25); the needle depth arc (24) is set on the second plate surface (26). The pointer (6) is located on one side of the second plate surface (26). Its bottom end is connected to the syringe (4) via a connecting part (61) that movably abuts against the folding platform (27).

2. The acupuncture direction, angle, and depth positioning device according to claim 1, characterized in that: The base (1) is a transparent semi-circular plate structure, the base hole (11) is located at its center, and the degree range of the needle puncture direction scale (12) is 0° to 180°.

3. The acupuncture direction, angle, and depth positioning device according to claim 1, characterized in that: The adjustment part (2) is a transparent fan-shaped plate structure with a central angle of not less than 90°. The connecting ring (3) is horizontally fixed at its center. The degree range of the needle angle scale (23) matches its central angle.

4. A needle insertion direction, angle, and depth positioning device according to any one of claims 2 or 3, characterized in that: The radius of the base (1) of the semi-circular plate structure is the same as the radius of the adjustment part (2) of the fan-shaped plate structure.

5. The acupuncture direction, angle, and depth positioning device according to claim 1, characterized in that: A damping pad (62) is provided between the connecting part (61) and the folding table (27) to provide frictional damping so that the pointer (6) can be adjusted at a fixed angle along the needle angle scale (23) with the injection syringe (4).

6. The acupuncture direction, angle, and depth positioning device according to claim 1, characterized in that: The second plate (26) has a needle puncture direction indicator rod (28) that is perpendicular to the plate surface and whose end is corresponding to the axis of the injection cylinder (4) at the bottom edge of the base (1) surface.

7. The acupuncture direction, angle, and depth positioning device according to claim 1, characterized in that: The positioning adjustment component (7) includes a guide groove (63) extending along the length of the pointer (6), a plurality of positioning grooves (64) arranged at equal intervals along the length of the guide groove (63) and corresponding one-to-one with the needle depth arc (24), a slider (71) slidably connected to the pointer (6) through the guide groove (63), and an elastic top bead assembly movably disposed on the slider (71) and correspondingly abutting against the positioning groove (64) to lock the slider (71) on the pointer (6). The fixed needle part (8) is connected to the slider (71).

8. The acupuncture direction, angle, and depth positioning device according to claim 7, characterized in that: The adjustment part (2) has an arc-shaped boss (261) protruding towards the upper end of the pointer (6) on its edge. The upper end of the pointer (6) has a clearance (65) to avoid the arc-shaped boss (261). The upper end of the guide groove (63) is connected to the clearance (65).

9. The acupuncture direction, angle, and depth positioning device according to claim 1, characterized in that: The needle fixing part (8) includes an outer frame (81), in which a fitting hole (811) with a diameter not less than the inner diameter of the injection cylinder is provided. A needle fixing plug (83) made of soft rubber that can undergo elastic deformation under force is provided in the fitting hole (811). A needle fixing hole (831) with a diameter not greater than the minimum diameter of the acupuncture needle is opened in the middle of the needle fixing plug (83).

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