An acupuncture needle with adjustable needle insertion depth

Abstract

The utility model discloses an adjustable acupuncture needle of needle depth belongs to acupuncture needle technical field, include: hollow handle, its one end is equipped with the stop disc with center hole, and the other end is equipped with the needle pusher of sliding, needle stem, sliding and being provided in the needle pusher and from center hole, the length of the protruding part is actual needle depth, limiting structure, be located between the needle pusher and hollow handle, be used for the axial position of locking needle pusher with coarse adjustment, slow push mechanism, be located in the needle pusher inside, be used for the protruding length of fine adjustment needle stem. The safe acupuncture needle of adjustable needle depth, has fused limiting structure and slow push mechanism, limiting structure realizes the quick coarse adjustment of needle depth, and slow push mechanism carries out fine adjustment, both ensure the adjustment speed, also can guarantee the adjustment accuracy.

Description

Technical Field

[0001] This utility model belongs to the field of acupuncture needle technology, and in particular relates to an acupuncture needle with adjustable insertion depth. Background Technology

[0002] In modern acupuncture treatment, precise control of needle insertion depth directly affects efficacy and safety. Different acupoints, diseases, and patient constitutions have specific requirements for needle insertion depth (e.g., shallow insertion of 0.5-1 inch for Hegu acupoint, and deep insertion of 2-3 inch for Huantiao acupoint). Traditional acupuncture needles rely on the physician's experience and feel to control depth, but operational stability is easily affected by factors such as the practitioner's skill level and the patient's position.

[0003] In recent years, some improved acupuncture needles have attempted to solve this problem, but they still suffer from the drawback of difficulty in balancing adjustment efficiency and precision. For example, the patent with authorization announcement number CN203469025U discloses an acupuncture needle inserter with adjustable insertion depth. Different depth levels are fixed by a slot. Although it can be switched quickly, the interval between the levels is fixed, which cannot meet the needs of scenarios requiring stepless fine adjustment (such as adjusting from 1.2 inches to 1.3 inches). Moreover, switching requires two hands (one hand holding the needle and the other hand turning the limiting ring), resulting in low adjustment efficiency during the operation. For example, the patent with authorization announcement number CN212067196U discloses an acupuncture needle that is convenient for controlling the depth of insertion. Although it can achieve continuous adjustment, each round of adjustment requires rotating the thread multiple times, which takes too long and is not suitable for treatment procedures that require frequent depth adjustments.

[0004] To address this issue, we propose an acupuncture needle with adjustable insertion depth. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the prior art that the speed and accuracy of acupuncture needles cannot be balanced when adjusting the insertion depth, and to propose an acupuncture needle with adjustable insertion depth.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An acupuncture needle with adjustable insertion depth, comprising: The hollow needle handle has a stop plate with a central hole at one end and a needle pusher slidably installed at the other end. The needle bar slides through the pusher and extends out of the central hole, with the length of the extended portion being the actual needle insertion depth. A limiting structure is provided between the needle pusher and the hollow needle handle for coarse adjustment and locking of the axial position of the needle pusher; A slow-step pushing mechanism, located inside the needle pusher, is used to fine-tune the extension length of the needle bar; The limiting structure works in conjunction with the slow-stepping mechanism to achieve rapid coarse adjustment and precise fine adjustment of the needle insertion depth.

[0007] Preferably, the limiting structure includes an internal threaded opening at the open end of the hollow needle handle, and a locking sleeve is internally threaded to the internal threaded opening. The threaded portion of the locking sleeve is made of elastic material and has multiple circumferentially distributed slits. The internal threaded opening has a tapered structure. The pusher is slidably engaged with the locking sleeve.

[0008] Preferably, the pusher is a hollow cylindrical structure, and its outer diameter is adapted to the inner diameter of the locking sleeve.

[0009] Preferably, the slow-stepping pushing mechanism includes a positioning ring disposed inside the syringe pusher, the positioning ring dividing the inside of the syringe pusher into a driving cavity and a pushing cavity, the pushing cavity having a stepped first chamber and a second chamber; A pressing rod is slidably disposed in the drive cavity. A spring is disposed between the pressing rod and the positioning ring. A four-part plastic clamping rod is disposed at the end of the pressing rod. A tightening ring is fitted with the positioning ring with a clearance. The edge of the tightening ring near the push cavity is turned outward. The four plastic clamping rods are inserted into the tightening ring. The four-part plastic clamping rods form a conical structure and tighten towards the center after entering the tightening ring. The inner diameter of the first chamber is larger than the outward-curving portion of the tightening ring edge, and the inner diameter of the second chamber is smaller than the outward-curving portion of the tightening ring edge, and larger than the outer diameter of the tapered structure formed by the plastic clamping rod (above four-tenths of an inch).

[0010] Preferably, the needle outlet end of the pusher is equipped with a rubber damping plug, and the needle rod passes through the rubber damping plug.

[0011] Preferably, the hollow needle handle has a regular hexagonal cross-section.

[0012] In summary, the technical effects and advantages of this utility model are as follows: This safety acupuncture needle with adjustable insertion depth integrates a limiting structure and a slow-stepping mechanism, solving the problem that traditional adjustable acupuncture needles cannot balance speed and accuracy. During acupuncture, the doctor can first use the limiting structure to quickly and coarsely adjust the insertion depth. By rotating the locking sleeve, and through its threaded connection with the internal thread of the hollow needle handle opening, the axial position of the pusher can be quickly adjusted during rotation, thus roughly determining the insertion depth range of the needle rod, since the threaded part of the locking sleeve is made of elastic material and has multiple circumferentially distributed slits, combined with the tapered internal thread, thereby roughly determining the insertion depth range of the needle rod. The operation is simple and fast. Then, fine adjustment is performed through the slow-stepping mechanism, ensuring both adjustment speed and adjustment accuracy.

[0013] The tissue structure and characteristics of different parts of the human body vary greatly, and the required depth and intensity of acupuncture stimulation also differ. The adjustable insertion depth function of this acupuncture needle can adapt well to these differences. In areas with abundant muscle, such as the buttocks and thighs, doctors can use the coarse adjustment to quickly advance the needle to a deeper position, and then use the fine adjustment function to precisely control the insertion depth to fully stimulate the deep meridians and acupoints, stimulate stronger blood and qi circulation, and enhance the therapeutic effect. In superficial tissue areas, such as the face and hands, the insertion depth can be precisely controlled within a smaller range to avoid overstimulation and tissue damage, while achieving effective stimulation of superficial acupoints. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the appearance and structure of the present utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 for Figure 2 A magnified structural diagram of part A in the middle; Figure 4 This is a schematic diagram of the pusher device in this utility model; Figure 5 This is a schematic diagram of the locking sleeve in this utility model; Figure 6 This is a schematic diagram of the tightening ring in this utility model.

[0015] In the diagram: 1. Hollow needle handle; 11. Internal threaded opening; 2. Stop plate; 21. Center hole; 3. Needle pusher; 31. Rubber damping plug; 4. Needle bar; 5. Limiting structure; 6. Slow-step pushing mechanism; 61. Positioning ring; 62. Pressing rod; 63. Holding rod; 64. Tightening ring; 65. Spring; 7. Locking sleeve. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] Reference Figure 1-6 An acupuncture needle with adjustable insertion depth includes a hollow needle handle 1, a needle shaft 4, a limiting structure 5, and a slow-moving pushing mechanism 6. Through the coordinated work of each component, rapid coarse adjustment and precise fine adjustment of the insertion depth are achieved, effectively improving the safety and effectiveness of acupuncture treatment.

[0018] The hollow needle handle 1 is the main outer shell of the entire acupuncture needle. When operating the acupuncture needle, the doctor holds the hollow needle handle 1 to operate. One end of the hollow needle handle 1 is equipped with a stop plate 2 with a central hole 21, and the other end is equipped with a needle pusher 3. The central hole 21 of the stop plate 2 provides a fixed channel for the extension of the needle rod 4, ensuring that the needle rod 4 maintains a stable movement trajectory during adjustment and needle insertion.

[0019] The needle bar 4 slides through the needle pusher 3 and extends out from the central hole 21. The length of the extended part is the actual needle insertion depth. The stop plate 2 can limit the needle bar 4 from penetrating too deeply into the skin. The slow-stepping mechanism 6 is located inside the needle pusher 3 and is used to fine-tune the extension length of the needle bar 4.

[0020] The needle pusher 3 is slidably set at the other end of the hollow needle handle 1. Its function is to push the needle bar 4 to move axially, thereby realizing the adjustment of the needle insertion depth. Since the needle pusher 3 and the hollow needle handle 1 slide together, the adjustment length can be judged by the doctor's experience during adjustment. The adjustment speed is fast. After adjusting the approximate range, the position of the needle bar 4 can be finely adjusted in conjunction with the slow pushing mechanism 6.

[0021] The limiting structure 5 is located between the pusher 3 and the hollow needle handle 1, and is used to coarsely adjust and lock the axial position of the pusher 3, thereby achieving approximate positioning of the needle insertion depth. The limiting structure 5 includes an internal threaded port 11 located at the opening end of the hollow needle handle 1. The internal threaded port 11 is internally threaded with a locking sleeve 7. The threaded part of the locking sleeve 7 is made of elastic material and has multiple circumferentially distributed slits, dividing the threaded part of the locking sleeve 7 into multiple independent modules. The internal threaded port 11 is a conical structure. The pusher 3 and the locking sleeve 7 slide together. The locking sleeve 7 has a certain elastic deformation capability. The internal threaded port 11 is a conical structure. When the locking sleeve 7 is rotated, as the locking sleeve 7 goes deeper into the internal threaded port 11, the conical structure will gradually squeeze the elastic threaded part of the locking sleeve 7, causing its end to contract, thereby tightly clamping the pusher 3 and locking the axial position of the pusher 3.

[0022] The pusher 3 is a hollow cylindrical structure, and its outer diameter is adapted to the inner diameter of the locking sleeve 7. Therefore, when the locking sleeve 7 is tightened, it can act tightly on the pusher 3 to achieve locking.

[0023] The limiting structure 5 works in conjunction with the slow-stepping mechanism 6 to achieve rapid coarse adjustment and precise fine adjustment of the needle insertion depth. When adjusting the working length of the needle bar 4, the needle pusher 3 is slid after the locking sleeve 7 is loosened. The needle pusher 3 drives the needle bar 4 to make rapid coarse adjustment. Then, through the slow-stepping mechanism 6 in the needle pusher 3, the needle bar 4 is controlled to slowly extend out of the needle pusher 3 to achieve fine adjustment. The two adjustment methods work together to ensure the adjustment speed. At the same time, both adjustment methods are stepless, so the adjustment accuracy and adjustment range can be guaranteed.

[0024] Reference Figure 2-6 The slow-moving pushing mechanism 6 includes a positioning ring 61 disposed inside the pusher 3. The positioning ring 61 divides the interior of the pusher 3 into a driving cavity and a pushing cavity. The pushing cavity has a stepped first chamber and a second chamber, wherein the inner diameter of the first chamber is larger than that of the second chamber, and the first chamber is located on the side closer to the positioning ring 61.

[0025] A pressing rod 62 is slidably disposed within the drive cavity. A spring 65 is disposed between the pressing rod 62 and the positioning ring 61. The function of the spring 65 is to provide a restoring force after the pressing rod 62 is pressed, so that the pressing rod 62 can automatically return to its initial position. A quarter-inch plastic clamping rod 63 is disposed at the end of the pressing rod 62. The plastic clamping rod 63 is elastic and tends to bend outward. A tightening ring 64 is fitted with a clearance within the positioning ring 61. The tightening ring 64 can slide within the positioning ring 61. The edge of the tightening ring 64 near the push cavity is turned outward to form a raised edge. Under the action of the warping edge, the tightening ring 64 can only move towards the pushing cavity side and cannot move towards the driving cavity side. The four plastic clamping rods 63 are inserted into the tightening ring 64. When the pressing rod 62 is in the initial state under the action of the spring 65, the plastic clamping rods 63 are gathered into the tightening ring 64. The outer circumferential surface of the plastic clamping rods 63 is inclined, so that the four plastic clamping rods 63 form a conical structure. After entering the tightening ring 64, they tighten towards the center. The plastic clamping rods 63 in the gathered state can clamp the needle rod 4 that passes through the center and keep it fixed.

[0026] The inner diameter of the first chamber is larger than the outward-curved edge of the tightening ring 64, and the inner diameter of the second chamber is smaller than the outward-curved edge of the tightening ring 64. The outer diameter of the plastic clamping rod 63, which is larger than a quarter of the outer diameter of the tapered structure, is thus the tightening ring 64 can only move within the first chamber, while the plastic clamping rod 63 can pass through the first chamber and enter the second chamber.

[0027] When fine-tuning the needle bar 4, pressing the pressing lever 62 will push the plastic clamping lever 63 out of the positioning ring 61. Simultaneously, due to the tight compression between the plastic clamping lever 63 and the tightening ring 64, the lever 63, along with the tightening ring 64, will be pulled out of the positioning ring 61. At this stage, the needle bar 4 and the plastic clamping lever 63 are still locked. Therefore, the needle bar 4 is pushed forward a short distance until the tightening ring 64 abuts against the radial change position of the first and second chambers. The tightening ring 64 is blocked, and the plastic clamping lever 63 continues to move forward, extending out of the tightening ring 64. At this point, the plastic clamping lever 63, under its own elastic force, spreads outwards, exposing the center position, and the needle bar 4 is released from its locking position. The needle pusher 3 has a rubber damping plug 31 installed at the needle outlet. The needle rod 4 passes through the rubber damping plug 31, which dampens the needle rod 4. When the pressing rod 62 is reset, the needle rod 4 remains in the position after being pushed in. When the plastic clamping rod 63 is reset and moves, it first drives the tightening ring 64 to reset and enter the positioning ring 61. Then, the plastic clamping rod 63 retracts into the tightening ring 64 and tightens again to fix the needle rod 4. Pressing the pressing rod 62 once completes one slow push of the needle rod 4. By pressing continuously, the needle rod 4 can be fine-tuned. It should be noted that fine-tuning only requires pressing the pressing rod 62. Theoretically, it can be operated with only one hand, making it simpler to use.

[0028] The hollow needle handle has a regular hexagonal cross-section. Each side of the regular hexagon can provide a stable point of force for the doctor's fingers. When the doctor rotates the needle handle, the fingers can fit tightly against the edge of the needle handle, which greatly increases the friction between the hand and the needle handle, thus avoiding slippage.

[0029] The working principle of this utility model is as follows: When it is necessary to quickly adjust the approximate range of the needle insertion depth, the doctor first loosens the locking sleeve 7. Since the threaded part of the locking sleeve 7 is made of elastic material and has multiple circumferentially distributed suture openings, when the locking sleeve 7 is rotated to loosen, the state of the elastic threaded part being squeezed by the conical structure of the internal thread opening 11 is released, the clamping force on the needle pusher 3 disappears, and the needle pusher 3 can slide freely on the hollow needle handle 1.

[0030] Based on clinical experience and treatment needs, the doctor slides the needle pusher 3, which drives the needle rod 4 to move axially. The needle rod 4 extends out from the center hole 21 of the stop plate 2, and the length of the extended part is the actual needle insertion depth. The stop plate 2 can limit the needle rod 4 from penetrating too deeply into the skin, playing a safety protection role. The doctor can quickly adjust the needle insertion depth to a roughly appropriate range.

[0031] After completing the rapid coarse adjustment, the doctor rotates the locking sleeve 7 again. As the locking sleeve 7 goes deeper into the internal threaded opening 11, the conical structure gradually squeezes the elastic threaded part of the locking sleeve 7, causing its port to contract and tightly clamp the pusher 3, thereby locking the axial position of the pusher 3 and roughly fixing the needle insertion depth.

[0032] After completing the rapid coarse adjustment, if a more precise adjustment of the needle insertion depth is required, the doctor can use the slow-stepping push mechanism 6.

[0033] The working process of the slow-moving pushing mechanism 6 is as follows: Pressing the pressing rod 62 causes it to slide within the drive cavity, simultaneously compressing the spring 65. The plastic clamping rod 63 at the end of the pressing rod 62 is elastic and tends to bend outward, at which point it is pushed out from the positioning ring 61. Due to the tight compression between the plastic clamping rod 63 and the tightening ring 64, it will be driven out of the positioning ring 61 along with the tightening ring 64 during the pushing process. At this time, the plastic clamping rod 63, which is in a retracted state, will clamp the needle bar 4 that passes through the center. The needle bar 4 and the plastic clamping rod 63 are in a locked state, so the needle bar 4 is pushed forward a short distance.

[0034] As the tightening ring 64 moves with the plastic clamping rod 63, when the tightening ring 64 comes into contact with the radial position of the first chamber and the second chamber, the tightening ring 64 is blocked and cannot move forward, while the plastic clamping rod 63 continues to move forward and extends out from the tightening ring 64. At this time, the plastic clamping rod 63 opens outward under its own elastic force, exposing the center position, and the needle rod 4 loses its locking.

[0035] When the pressing rod 62 resets, the elastic force of the spring 65 causes the pressing rod 62 to automatically return to its initial position. At the same time, the rubber damping plug 31 installed at the needle outlet of the needle pusher 3 has a damping effect on the needle rod 4, so that the needle rod 4 remains stationary after being pushed in. When the plastic clamping rod 63 resets and moves, it first drives the tightening ring 64 to reset and enter the positioning ring 61. Then, the plastic clamping rod 63 retracts into the tightening ring 64 and tightens again, thus fixing the needle rod 4 again.

[0036] By continuously pressing the pressing lever 62, each press gradually advances the needle bar 4, thereby achieving precise fine-tuning of the extension length of the needle bar 4 and thus accurately controlling the needle insertion depth. Moreover, the fine-tuning process can theoretically be completed by pressing the pressing lever 62 with only one hand, making the operation simple and convenient.

Claims

1. An acupuncture needle with adjustable insertion depth, characterized in that, The device includes a hollow needle handle (1), one end of which is provided with a stop plate (2) with a central hole (21), and the other end of which is slidably provided with a needle pusher (3). A needle rod (4) is slidably inserted inside the needle pusher (3), and the needle rod (4) extends out from the central hole (21), with the length of the extended part being the actual needle insertion depth. A limiting structure (5) for coarsely adjusting and locking the axial position of the needle pusher (3) is provided between the needle pusher (3) and the hollow needle handle (1). The needle pusher (3) is provided with a slow-stepping pushing mechanism (6) for finely adjusting the extension length of the needle rod (4). The limiting structure (5) and the slow-stepping pushing mechanism (6) cooperate to achieve rapid coarse adjustment and precise fine adjustment of the needle insertion depth.

2. The acupuncture needle with adjustable insertion depth according to claim 1, characterized in that, The limiting structure (5) includes an internal threaded port (11) located at the open end of the hollow needle handle (1). The internal threaded port (11) is internally threaded and connected to a locking sleeve (7). The threaded part of the locking sleeve (7) is made of elastic material and has multiple circumferentially distributed slits. The internal threaded port (11) is a conical structure. The needle pusher (3) is in sliding fit with the locking sleeve (7).

3. The acupuncture needle with adjustable insertion depth according to claim 2, characterized in that, The pusher (3) is a hollow columnar structure, and its outer diameter is adapted to the inner diameter of the locking sleeve (7).

4. The acupuncture needle with adjustable insertion depth according to claim 1, characterized in that, The slow-step pushing mechanism (6) includes a positioning ring (61) disposed inside the pusher (3). The positioning ring (61) divides the inside of the pusher (3) into a driving chamber and a pushing chamber. The pushing chamber has a stepped first chamber and a second chamber. A pressing rod (62) is slidably arranged inside the drive cavity. A spring (65) is arranged between the pressing rod (62) and the positioning ring (61). A four-part plastic clamping rod (63) is arranged at the end of the pressing rod (62). A tightening ring (64) is fitted inside the positioning ring (61) with a clearance. The edge of the tightening ring (64) near the push cavity is turned outward. The four plastic clamping rods (63) are inserted into the tightening ring (64). The four-part plastic clamping rods (63) form a conical structure and tighten towards the center after entering the tightening ring (64). The inner diameter of the first chamber is larger than the outward-curved portion of the edge of the tightening ring (64), and the inner diameter of the second chamber is smaller than the outward-curved portion of the edge of the tightening ring (64) and larger than the outer diameter of the tapered structure formed by the plastic clamping rod (63) of four-tenths of an inch.

5. An acupuncture needle with adjustable insertion depth according to claim 4, characterized in that, The needle pusher (3) is equipped with a rubber damping plug (31) at the needle outlet end, and the needle rod (4) passes through the rubber damping plug (31).

6. An acupuncture needle with adjustable insertion depth according to claim 1, characterized in that, The hollow needle handle (1) has a regular hexagonal cross section.

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