A portable, flexible-drive needle inserter with a needle reservoir

Abstract

This invention discloses a portable, elastically driven needle inserter with a needle storage compartment, belonging to the field of medical device technology. It includes a lower cylinder, with an upper cylinder slidably fitted onto the upper part of the lower cylinder. A bolt is threaded through one side of the upper cylinder, with one end of the bolt abutting against the outer wall of the lower cylinder. A needle insertion assembly is installed between the lower and upper cylinders, including a lower transmission rod rotatably connected to the middle of the inner wall of the lower cylinder. This invention achieves rapid disassembly and needle storage through the sliding fit between the upper and lower cylinders, significantly simplifying the needle replacement process and improving continuous operation efficiency. Furthermore, by utilizing a one-way bearing, ratchet pawl, and threaded transmission, it automatically completes needle replacement and positioning locking after each firing, achieving fully automated cycles. Simultaneously, by rotating the adjusting sleeve to switch between different length levers, the lifting height of the impact hammer is changed to adjust the needle injection force, and a bolt locks the device to maintain stability, enhancing clinical applicability and operational flexibility.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically, to a portable, elastically driven needle inserter with a needle reservoir. Background Technology

[0002] An acupuncture needle insertion device is a medical instrument that assists in quickly inserting acupuncture needles into acupoints. Traditional acupuncture operations rely entirely on the doctor's hands, that is, the doctor holds the needle handle and uses wrist strength to rotate and insert the needle directly into the subcutaneous tissue. This method requires a high degree of skill from the doctor, and the speed, angle and depth of needle insertion depend entirely on personal experience, resulting in significant differences in operation between different doctors. With the development of modern medical technology, various auxiliary needle insertion devices have emerged. Their core principle is to store elastic potential energy through a mechanical mechanism and release the energy at the moment of triggering to drive the acupuncture needle to quickly penetrate the skin, thereby reducing the difficulty of operation and alleviating the patient's pain to a certain extent.

[0003] Most existing needle inserters are single-needle loading structures, lacking a needle storage compartment design. This means that the needle must be manually reloaded after each firing, frequently interrupting operations and severely impacting continuous work efficiency. This not only increases the number of operation steps and learning costs but also easily leads to malfunctions such as needle jamming, blank firing, and misfiring due to improper needle replacement. In addition, the firing force of existing needle inserters is fixed, making it difficult to adapt to different skin thicknesses and physical differences. If the force is too weak, repeated operations are required, increasing patient pain, while if the force is too strong, the needle may penetrate too deeply, causing tissue damage, which seriously limits the scope of clinical application.

[0004] Therefore, we have made improvements to this by proposing a portable, flexible-drive needle inserter with a needle reservoir. Summary of the Invention

[0005] In view of the above-mentioned problems existing in the prior art, the purpose of the present invention is to provide a portable elastic drive needle inserter with a needle storage compartment.

[0006] To solve the above problems, the technical solution adopted by the present invention is as follows: a portable device with a needle storage compartment. A portable elastic-driven needle inserter includes a lower cylinder, an upper cylinder is slidably sleeved on the upper part of the lower cylinder, a bolt is threaded through one side of the upper cylinder, one end of the bolt abuts against the outer wall of the lower cylinder, and a needle inserting assembly is installed between the lower cylinder and the upper cylinder. The needle insertion assembly includes a lower transmission rod rotatably connected to the middle of the inner wall of the lower cylinder. A rotating disk is fixedly sleeved on the lower part of the lower transmission rod. The rotating disk has multiple needle insertion holes arranged in a ring array. A slot is provided at the middle of the upper end of the lower transmission rod, and a plug is inserted into the slot.

[0007] Preferably, an installation sleeve is fixedly connected to the upper end of the insert block, a one-way bearing is fixedly fitted on the inner wall of the installation sleeve, an upper transmission rod is fixedly connected inside the one-way bearing, a lifting sleeve is threaded on the upper part of the upper transmission rod, the lifting sleeve slides through the upper cylinder, a button is fixedly connected to the upper end of the lifting sleeve, an installation block is rotatably connected to the middle of the upper end of the upper transmission rod, a spring is fixedly connected to the upper end of the installation block, the upper end of the spring is fixedly connected to the lower end of the button, and a telescopic rod is fixedly connected between the button and the installation block.

[0008] Preferably, a connecting sleeve is rotatably fitted at the lower outer part of the lifting sleeve. Multiple actuating rods of different lengths are fixedly connected to the side wall of the connecting sleeve, and the multiple actuating rods are arranged in a circular array. An adjusting sleeve is fixedly connected to the upper end of the connecting sleeve, and the adjusting sleeve penetrates the upper cylinder. Two symmetrically arranged fixed blocks are fixedly connected to the side wall of the upper cylinder. A rotating rod is rotatably connected between the two fixed blocks. A swing rod is fixedly connected to the rotating rod. The swing rod includes a long rod part and a short rod part. The long rod end of the swing rod is located below the actuating rod. An impact hammer is fixedly connected to the end of the swing rod. Two torsion springs are fitted on the outside of the rotating rod. One end of each torsion spring is fixedly connected to the side wall of the rotating rod, and the other end of each torsion spring is fixedly connected to the side wall of the two fixed blocks, respectively.

[0009] Preferably, a reset rod is fixedly connected to the top inner wall of the upper cylinder, the lower end of the reset rod is wedge-shaped, and the reset rod is located between the actuating rod and the adjusting sleeve.

[0010] Preferably, a vertical plate is fixedly connected to the lower end of the button, and multiple positioning grooves are provided in an array on the upper side wall of the adjusting sleeve. The multiple positioning grooves are located above multiple toggle levers, and a bolt is threaded through the side wall of the vertical plate and inserted into the positioning groove.

[0011] Preferably, a ratchet is fixedly sleeved on the lower outer side of the lower transmission rod, and a pawl is rotatably connected to the inner wall of the bottom of the lower cylinder. The pawl engages with the tooth groove on the outside of the ratchet, and a spring is fixedly connected to the inner wall of the bottom of the lower cylinder, with the spring abutting against the side wall of the pawl. Preferably, a needle outlet tube is connected to the bottom of the lower cylinder, and the needle outlet tube is positioned directly opposite the needle insertion hole. Preferably, a pen clip is fixedly connected to the upper side wall of the upper cylinder.

[0012] Preferably, an anti-slip sleeve is fixedly fitted on the upper part of the side wall of the adjusting sleeve.

[0013] Preferably, the inner wall of the upper cylinder is provided with multiple guide grooves, and multiple guide rods are fixedly connected to the lower part of the side wall of the lifting sleeve, and the multiple guide rods are slidably connected in the multiple guide grooves respectively.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This device achieves quick and detachable connection by sliding the upper cylinder onto the outside of the lower cylinder and locking it with bolts. This allows users to separate the upper and lower cylinders without tools after the needles are used up, so that they can directly load needles onto the rotating disk. This greatly simplifies the needle replenishment process and improves ease of use. In addition, the multiple annular array of needle holes on the rotating disk form a compact needle storage chamber, which can pre-store multiple acupuncture needles, avoiding frequent manual needle loading and significantly improving the efficiency of continuous operation. It is especially suitable for clinical scenarios that require rapid and multiple needle insertions.

[0015] 2. This device achieves a reliable automatic needle changing function through the cooperation of a one-way bearing, ratchet and pawl, and threaded transmission. When the button is pressed and released, the spring drives the lifting sleeve to rise, which drives the upper transmission rod to rotate in the opposite direction via the thread. The one-way bearing locks and transmits power to the lower transmission rod, driving the rotating disk to rotate at a precise step angle. At the same time, the ratchet and pawl mechanism provides positioning lock after rotation to prevent deviation. After each firing, the rotating disk automatically switches the next unused needle to the firing position, realizing a fully automated cycle and reducing user operation steps and waiting time.

[0016] 3. This device allows for adjustment of needle injection force by rotating the adjusting sleeve to switch between different lengths of the actuating levers facing the longer part of the swing rod. After loosening bolt two, the user rotates the adjusting sleeve, which drives each actuating lever to rotate. When the levers of different lengths descend, they press the longer part of the swing rod down to different angles. Through the lever principle, the impact hammer of the shorter rod obtains different lifting heights and torsion spring torques, ultimately impacting the acupuncture needle with different forces. After adjustment, tighten bolt two to lock the adjusting sleeve, maintaining a stable and repeatable adjustment state, thus enhancing clinical applicability and operational flexibility. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the main structure of a portable elastic-driven needle inserter with a needle storage compartment provided in this application; Figure 2 is a structural cross-sectional view of a portable elastic-driven needle inserter with a needle reservoir provided in this application; Figure 3 is a schematic diagram of the needle insertion assembly structure of a portable elastic drive needle inserter with a needle storage compartment provided in this application; Figure 4 is a schematic diagram of the positioning groove and bolt structure of a portable elastic drive needle inserter with a needle storage compartment provided in this application; Figure 5 is a schematic diagram of the impact hammer and torsion spring structure of a portable elastically driven needle inserter with a needle storage compartment provided in this application.

[0018] In the diagram: 1. Lower cylinder; 2. Upper cylinder; 3. Bolt 1; 4. Needle insertion assembly; 401. Lower transmission rod; 402. Rotating disk; 403. Needle outlet hole; 404. Slot; 405. Insert block; 406. Mounting sleeve; 407. One-way bearing; 408. Upper transmission rod; 409. Lifting sleeve; 410. Button; 411. Mounting block; 412. Spring; 413. Telescopic rod; 414. Connecting sleeve; 415. Actuating rod; 416. Adjusting sleeve; 417. Fixing block; 418. Rotating rod; 419. Swinging rod; 420. Impact hammer; 421. Torsion spring; 422. Reset rod; 423. Vertical plate; 424. Positioning groove; 425. Bolt II; 5. Ratchet; 6. Pad; 7. Spring; 8. Needle tube; 9. Pen clip; 10. Anti-slip sleeve; 11. Guide groove; 12. Guide rod. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, 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. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0020] Please refer to Figure 1- Figure 5 As shown, the present invention provides a technical solution: a portable elastic drive needle inserter with a needle storage compartment, including a lower cylinder 1, an upper cylinder 2 slidably sleeved on the upper part of the lower cylinder 1, a bolt 3 threaded through one side of the upper cylinder 2, one end of the bolt 3 abutting against the outer wall of the lower cylinder 1, and a needle insertion assembly 4 installed between the lower cylinder 1 and the upper cylinder 2.

[0021] Furthermore, the lower cylinder 1 serves as a supporting base, providing an installation foundation for the upper cylinder 2 and the needle insertion assembly 4 and maintaining overall structural stability. The upper cylinder 2 is slidably sleeved on the upper part of the lower cylinder 1. The lower cylinder 1 and the upper cylinder 2 can be detachably fitted and separated through relative sliding to facilitate internal needle insertion. Bolt 3 is threaded through the side wall of the upper cylinder 2 and one end abuts against the outer wall of the lower cylinder 1. By tightening and loosening, the upper cylinder 2 and the lower cylinder 1 are locked and fixed, and the locking and unlocking are released, thereby achieving quick locking and unlocking of their relative positions. The needle insertion assembly 4 is installed between the lower cylinder 1 and the upper cylinder 2. As a core functional module, it is used to store multiple acupuncture needles and eject them one by one when firing.

[0022] In the preferred embodiment of this technical solution, please refer to Figures 3-5As shown, the needle insertion assembly 4 includes a lower transmission rod 401 rotatably connected to the middle of the inner wall of the lower cylinder 1. A rotating disk 402 is fixedly sleeved on the lower part of the lower transmission rod 401. The rotating disk 402 has a plurality of needle insertion holes 403 arranged in a ring array. A slot 404 is provided at the middle of the upper end of the lower transmission rod 401. A plug 405 is inserted into the slot 404. An installation sleeve 406 is fixedly connected to the upper end of the insert block 405. A one-way bearing 407 is fixedly fitted inside the inner wall of the installation sleeve 406. An upper transmission rod 408 is fixedly connected inside the one-way bearing 407. A lifting sleeve 409 is threadedly fitted on the upper part of the upper transmission rod 408. The lifting sleeve 409 slides through the upper cylinder 2. A button 410 is fixedly connected to the upper end of the lifting sleeve 409. An installation block 411 is rotatably connected to the middle of the upper end of the upper transmission rod 408. A spring 412 is fixedly connected to the upper end of the installation block 411. The upper end of the spring 412 is fixedly connected to the lower end of the button 410. A telescopic rod 413 is fixedly connected between the button 410 and the installation block 411. A connecting sleeve 414 is rotatably fitted onto the lower outer side of the lifting sleeve 409. Multiple actuating rods 415 of varying lengths are fixedly connected to the side wall of the connecting sleeve 414, arranged in a circular array. An adjusting sleeve 416 is fixedly connected to the upper end of the connecting sleeve 414, penetrating the upper cylinder 2. Two symmetrically arranged fixing blocks 417 are fixedly connected to the side wall of the upper cylinder 2. A rotating rod 418 is rotatably connected between the two fixing blocks 417. A swing rod 419 is fixedly connected to the rotating rod 418, comprising a long rod section and a short rod section. The long rod end of the swing rod 419 is located below the actuating rods 415. An impact hammer 420 is fixedly connected to the end of the swing rod 419. Two torsion springs 421 are fitted onto the outside of the rotating rod 418, with one end of each torsion spring fixedly connected to the side wall of the rotating rod 418. The other end is fixedly connected to the side wall of the two fixed blocks 417 respectively.

[0023] Furthermore, the lower transmission rod 401, acting as a power transmission shaft, transmits rotational power to the rotating disk 402 and supports its rotation. The rotating disk 402 rotates synchronously with the lower transmission rod 401 to switch the positions of different needle placement holes 403, achieving automatic needle changing. The needle placement holes 403 are located on the rotating disk 402 and are arranged in a circular array to accommodate and position multiple acupuncture needles, achieving a pre-storage function. An anti-slip pad is provided on the inner wall to achieve frictional fixation of the acupuncture needles. The slot 404 accommodates the insert block 405 to achieve a detachable transmission connection between the upper transmission rod 408 and the lower transmission rod 401. The insert block 405 is inserted into the slot 404, transmitting the rotational power of the upper transmission rod 408 to the lower transmission rod 401 and facilitating separation of the cylinder during disassembly. The mounting sleeve 406 is fixedly connected to the upper end of the insert block 405, serving as the mounting carrier for the one-way bearing 407, fixing it between the upper transmission rod 408 and the lower transmission rod 401. The one-way bearing 407... A fixed sleeve is fitted inside the mounting sleeve 406 and internally connected to the upper transmission rod 408. During forward rotation, it is in a free direction, cutting off power transmission. During reverse rotation, it locks, transmitting power through the mounting sleeve 406 and the insert block 405 to the lower transmission rod 401. A lifting sleeve 409 is threaded onto the upper part of the upper transmission rod 408. Through threaded engagement, the vertical lifting motion of the lifting sleeve 409 is converted into its own forward and reverse rotational motion. The lifting sleeve 409 slides through the upper cylinder 2, and its upper end is fixedly connected to a button 410. During vertical lifting, the threaded drive rotates the upper transmission rod 408, causing the connecting sleeve 414 to rise and fall synchronously. The button 410 is fixedly connected to the upper end of the lifting sleeve 409, allowing the user to press it to drive the lifting sleeve 409 downward, thereby initiating the entire firing and needle changing cycle. The mounting block 411 is rotatably connected to the middle of the upper end of the upper transmission rod 408, allowing the lower end of the spring 412 to rotate with the upper transmission rod 408 while maintaining its upper end with the button 410. To prevent the spring 412 from bearing torsional force, the spring 412 is fixedly connected between the upper end of the mounting block 411 and the lower end of the button 410. When the button 410 descends, it is compressed and stores elastic potential energy. When the button 410 is released, the potential energy is released to push the button 410 and the lifting sleeve 409 upwards to reset. The telescopic rod 413 is fixedly connected between the button 410 and the mounting block 411, providing guidance and limiting for the compression and extension of the spring 412 to prevent lateral instability. The connecting sleeve 414 is rotatably sleeved on the lower part of the outside of the lifting sleeve 409, rising and falling synchronously with the lifting sleeve 409 and carrying the toggle lever 415. It can also rotate relative to the lifting sleeve 409 to switch between different lengths of the toggle lever 415. The toggle lever 415 is directly opposite the long part of the swing rod 419. The toggle lever 415 is fixedly connected to the side wall of the connecting sleeve 414 and is arranged in a circular array with varying lengths. During descent, the long section of the swing rod 419 is pressed down to drive the impact hammer 420 to lift and store energy.After descending to the lowest point, the spring undergoes elastic deformation and comes into contact with the side wall of the lifting sleeve 409, thus detaching from the long rod of the swing lever 419 to release the torsion spring 421 and complete firing. The adjusting sleeve 416 is fixedly connected to the upper end of the connecting sleeve 414 and passes through the upper cylinder 2, allowing the user to rotate it to drive the connecting sleeve 414 to rotate, thereby switching between different lengths of the actuating lever 415. The long rod of the swing lever 419 is directly opposite to adjust the firing force. The fixing block 417 is fixedly connected to the side wall of the upper cylinder 2 and is symmetrically arranged, serving as a support for the rotating lever 418 and providing it with a fulcrum for rotation. The rotating lever 418 is rotatably connected between the two fixing blocks 417, serving as the mounting shaft for the swing lever 419 and the torsion spring 421. When the actuating lever 415 is pressed down and the torsion spring 421 is reset, it drives the swing lever 419 to swing. The swing lever 419 is fixedly connected to the rotating lever 418 and includes a long rod and a short rod. The long rod is located at the actuating lever 415. The lower part receives the downward pressure from the actuating lever 415. The short rod is fixedly connected to the impact hammer 420. When the long rod is pressed down, the short rod tilts up, causing the impact hammer 420 to rise and store energy. When the long rod disengages from the actuating lever 415, the short rod swings down rapidly, driving the impact hammer 420 to strike the acupuncture needle. When the torsion spring 421 is released, the impact hammer 420, along with the short rod, rapidly strikes the tail of the acupuncture needle in the needle outlet 403, ejecting it along the needle tube 8. The torsion spring 421 is sleeved on the outside of the rotating rod 418, with one end fixed to the side wall of the rotating rod 418 and the other end fixed to the side wall of the fixing block 417. When the rotating rod 418 rotates as the long rod of the swing lever 419 is pressed down, it is torsionally stored. When the long rod of the swing lever 419 disengages from the actuating lever 415, it releases elastic potential energy, driving the rotating rod 418 to rotate in the opposite direction, causing the impact hammer 420 to rapidly strike downwards and complete the firing.

[0024] In the preferred embodiment of this technical solution, please refer to Figure 3 As shown, a reset rod 422 is fixedly connected to the inner wall of the top of the upper cylinder 2. The lower end of the reset rod 422 is wedge-shaped and is located between the actuating rod 415 and the adjusting sleeve 416.

[0025] Furthermore, the reset rod 422 is fixedly connected to the top inner wall of the upper cylinder 2 and is located between the actuating rod 415 and the adjusting sleeve 416. When the actuating rod 415 rises with the lifting sleeve 409, it guides and limits the actuating rod 415, restoring it from its bent state close to the side wall of the lifting sleeve 409 to its initial tilted state, providing a reliable starting point for the next press-to-fire. The lower end of the reset rod 422 is wedge-shaped. When the actuating rod 415 rises and contacts the reset rod 422, the wedge-shaped inclined surface guides the actuating rod 415 to gradually deform outward, making the reset process of the actuating rod 415 smooth and without jamming.

[0026] In the preferred embodiment of this technical solution, please refer to Figure 4 As shown, a vertical plate 423 is fixedly connected to the lower end of the button 410. Multiple positioning grooves 424 are arranged in an array on the upper side wall of the adjusting sleeve 416. The multiple positioning grooves 424 are located above multiple toggle levers 415 respectively. Bolts 425 are threaded through the side wall of the vertical plate 423 and are inserted into the positioning grooves 424.

[0027] Furthermore, the upright plate 423 rises and falls with the button 410, providing mounting support for the second bolt 425 and maintaining its stable position. The positioning groove 424 is opened on the upper side wall of the adjusting sleeve 416 and is distributed in multiple arrays, located above each toggle lever 415. It is used to accommodate the end of the second bolt 425 to lock the rotation angle of the adjusting sleeve 416 at the position where the corresponding toggle lever 415 is directly opposite the long part of the swing lever 419. The second bolt 425 is threaded through the side wall of the upright plate 423 and inserted into the positioning groove 424. By screwing into the positioning groove 424, the adjusting sleeve 416 and the upright plate 423 are fixed relative to each other to prevent the adjusting sleeve 416 from rotating accidentally during use. Screwing out of the positioning groove 424 releases the lock, allowing the user to rotate the adjusting sleeve 416 to switch between different toggle levers 415 to adjust the needle force.

[0028] In the preferred embodiment of this technical solution, please refer to Figure 2 As shown, a ratchet 5 is fixedly sleeved on the lower part of the lower transmission rod 401. A pawl 6 is rotatably connected to the inner wall of the bottom of the lower cylinder 1. The pawl 6 is engaged in the tooth groove on the outside of the ratchet 5. A spring 7 is fixedly connected to the inner wall of the bottom of the lower cylinder 1. The spring 7 abuts against the side wall of the pawl 6.

[0029] Furthermore, the ratchet 5 is fixedly sleeved on the lower part of the lower transmission rod 401 and rotates synchronously with the lower transmission rod 401. Its external tooth groove is used to cooperate with the pawl 6 to realize the unidirectional rotation of the lower transmission rod 401. The pawl 6 is rotatably connected to the inner wall of the bottom of the lower cylinder 1 and is engaged in the tooth groove of the ratchet 5. When the lower transmission rod 401 rotates in the forward direction, it slides through each tooth groove of the ratchet 5 in sequence to allow rotation. When the lower transmission rod 401 has a tendency to rotate in the reverse direction, it is engaged in the tooth groove to prevent it from rotating in the reverse direction. The spring 7 is fixedly connected to the inner wall of the bottom of the lower cylinder 1 and abuts against the side wall of the pawl 6, continuously applying an elastic thrust to the pawl 6 to keep the pawl 6 always tightly engaged with the tooth groove of the ratchet 5, preventing the pawl 6 from disengaging from the tooth groove due to vibration and external force and failing.

[0030] In the preferred embodiment of this technical solution, please refer to Figure 3 As shown, the bottom of the lower cylinder 1 is connected to a needle outlet tube 8, which is positioned directly opposite the needle outlet hole 403.

[0031] Furthermore, the needle outlet tube 8 is connected to the bottom of the lower cylinder 1 and is positioned directly opposite the needle release hole 403. It is used to guide and limit the acupuncture needle when the impact hammer 420 fires the acupuncture needle, ensuring that the needle is ejected in a straight line along the axial direction of the needle outlet tube 8, while preventing the needle from deviating or bending during the ejection process.

[0032] In the preferred embodiment of this invention, as shown in Figure 1, a pen clip 9 is fixedly connected to the upper side wall of the upper cylinder 2.

[0033] Furthermore, the pen clip 9 is fixedly connected to the upper side wall of the upper cylinder 2 to hold the device in place on the user's pocket or clothing, making it easy to carry and access, while preventing the device from slipping and being lost during transport.

[0034] In the preferred embodiment of this invention, as shown in Figure 1, an anti-slip sleeve 10 is fixedly fitted on the upper side wall of the adjusting sleeve 416.

[0035] Furthermore, the anti-slip sleeve 10 is fixedly sleeved on the upper side wall of the adjustment sleeve 416 to increase the friction between the user's fingers and the adjustment sleeve 416, making it easier for the user to hold and rotate the adjustment sleeve 416 to switch between different lengths of the lever 415, while preventing the fingers from slipping during operation and causing the adjustment to be incomplete.

[0036] In the preferred embodiment of this technical solution, please refer to Figure 2 As shown, the inner wall of the upper cylinder 2 is provided with multiple guide grooves 11, and multiple guide rods 12 are fixedly connected to the lower side wall of the lifting sleeve 409. The multiple guide rods 12 are slidably connected in the multiple guide grooves 11 respectively.

[0037] Furthermore, the guide groove 11 is formed on the inner wall of the upper cylinder 2 to accommodate the guide rod 12 and provide a sliding guide track for the vertical lifting of the lifting sleeve 409. The sliding fit between the guide groove 11 and the guide rod 12 constrains the lifting sleeve 409 to only lift and lower in the vertical direction and prevents it from rotating. This ensures that the threaded fit between the lifting sleeve 409 and the upper transmission rod 408 can stably convert linear motion into rotational motion when the lifting sleeve 409 descends and rises.

[0038] Working principle: When the user presses button 410, the lifting sleeve 409 can only move vertically up and down due to the restriction of the guide groove 11 and guide rod 12. Therefore, the threaded engagement between it and the upper transmission rod 408 can drive the upper transmission rod 408 to rotate in the forward direction. At this time, the one-way bearing 407 is in the free direction, and the power cannot be transmitted to the lower transmission rod 401. At the same time, the ratchet 5 on the outside of the lower transmission rod 401 is locked by the pawl 6. The pawl 6 is further locked by the spring 7, ensuring that it remains stationary and does not rotate. Meanwhile, the spring 412 is compressed and stores energy. The connecting sleeve 414 descends synchronously with the lifting sleeve 409, driving one of the actuating rods 415 to press down the long rod of the swing rod 419, causing the rotating rod 418 to twist the torsion spring 421 and lift the impact hammer 420 at the end of the short rod. When the actuating rod 415 descends to the lowest point, its metal plate structure undergoes elastic deformation and comes into close contact with the lifting sleeve 409. The side wall is disengaged from the long rod of the swing rod 419, and the torsion spring 421 is released instantly, driving the impact hammer 420 to rush down quickly, and shooting the acupuncture needle in the needle hole 403 facing the needle tube 8 out along the needle tube 8. Then the user releases button 410, spring 412 resets and pushes button 410 to rise. When lifting sleeve 409 rises, it drives upper transmission rod 408 to rotate in the opposite direction via thread. At this time, one-way bearing 407 is locked. Power is transmitted to lower transmission rod 401 through mounting sleeve 406 and insert block 405, driving rotating disk 402 to rotate. At the same time, ratchet 5 and pawl 6 on the outside of lower transmission rod 401 cooperate to allow it to rotate in one direction and provide positioning lock after the needle is changed, so that the needle in the next needle hole 403 is accurately aligned with needle tube 8. During the rise of lifting sleeve 409, the actuating rod 415, which was initially bent close to the side wall of lifting sleeve 409, can pass over the long rod of swing rod 419 without interference. Then its upper end touches the wedge-shaped reset rod 422 and is guided to return to the initial tilted state, waiting for the next round of pressing. When the needle force needs to be adjusted, the user loosens bolt 425 to disengage it from the positioning groove 424, rotates the adjusting sleeve 416 to switch between different lengths of the lever 415 facing the longer part of the swing rod 419. The longer lever 415 presses down the swing rod 419 at a larger angle, the impact hammer 420 is raised higher, the torsion spring 421 stores more energy, and the needle force increases accordingly. Conversely, the force decreases. After adjustment, tighten bolt 425 to lock it in place. When the needles in the rotating disk 402 are used up, the user loosens bolt 3 to separate the upper cylinder 2 from the lower cylinder 1, exposing the rotating disk 402. Then, new needles are added to each needle hole 403, and the upper cylinder 2 is put back on and locked.

[0039] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of protection of this application is limited to these examples; within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of one or more embodiments of this application as described above, which are not provided in detail for the sake of brevity.

[0040] One or more embodiments in this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments in this application should be included within the protection scope of this application.

Claims

1. A portable, elastically driven needle inserter with a needle reservoir, characterized in that, The device includes a lower cylinder (1), an upper cylinder (2) is slidably sleeved on the upper part of the lower cylinder (1), a bolt (3) is threaded through one side of the upper cylinder (2), one end of the bolt (3) abuts against the outer wall of the lower cylinder (1), and a needle insertion assembly (4) is installed between the lower cylinder (1) and the upper cylinder (2). The needle insertion assembly (4) includes a lower transmission rod (401) rotatably connected to the middle of the inner wall of the lower cylinder (1). A rotating disk (402) is fixedly sleeved on the lower part of the lower transmission rod (401). The rotating disk (402) has a plurality of needle insertion holes (403) arranged in a ring array. A slot (404) is provided at the middle of the upper end of the lower transmission rod (401). A plug (405) is inserted into the slot (404).

2. A portable elastic-driven needle inserter with a needle reservoir according to claim 1, characterized in that, An installation sleeve (406) is fixedly connected to the upper end of the insert (405). A one-way bearing (407) is fixedly sleeved on the inner wall of the installation sleeve (406). An upper transmission rod (408) is fixedly connected inside the one-way bearing (407). A lifting sleeve (409) is threaded on the upper part of the upper transmission rod (408). The lifting sleeve (409) slides through the upper cylinder (2). A button (410) is fixedly connected to the upper end of the lifting sleeve (409). An installation block (411) is rotatably connected to the middle of the upper end of the upper transmission rod (408). A spring (412) is fixedly connected to the upper end of the installation block (411). The upper end of the spring (412) is fixedly connected to the lower end of the button (410). A telescopic rod (413) is fixedly connected between the button (410) and the installation block (411).

3. A portable elastic-driven needle inserter with a needle reservoir according to claim 2, characterized in that, A connecting sleeve (414) is rotatably fitted around the lower part of the lifting sleeve (409). Multiple actuating rods (415) of varying lengths are fixedly connected to the side wall of the connecting sleeve (414), arranged in a circular array. An adjusting sleeve (416) is fixedly connected to the upper end of the connecting sleeve (414), penetrating the upper cylinder (2). Two symmetrically arranged fixing blocks (417) are fixedly connected to the side wall of the upper cylinder (2), and a rotating rod (418) is rotatably connected between the two fixing blocks (417). A swing rod (419) is fixedly connected to the rotating rod (418). The swing rod (419) includes a long rod part and a short rod part. The long rod end of the swing rod (419) is located below the actuating rod (415). An impact hammer (420) is fixedly connected to the end of the swing rod (419). Two torsion springs (421) are sleeved on the outside of the rotating rod (418). One end of each torsion spring (421) is fixedly connected to the side wall of the rotating rod (418), and the other end of each torsion spring (421) is fixedly connected to the side wall of each of the two fixed blocks (417).

4. A portable elastic-driven needle inserter with a needle reservoir according to claim 3, characterized in that, A reset rod (422) is fixedly connected to the top inner wall of the upper cylinder (2). The lower end of the reset rod (422) is wedge-shaped and is located between the actuating rod (415) and the adjusting sleeve (416).

5. A portable elastic-driven needle inserter with a needle reservoir according to claim 4, characterized in that, The lower end of the button (410) is fixedly connected to a vertical plate (423). The upper side wall of the adjusting sleeve (416) is provided with multiple positioning grooves (424) arranged in an array. The multiple positioning grooves (424) are respectively located above multiple toggle levers (415). The side wall of the vertical plate (423) is threaded with a bolt (425), which is inserted into the positioning groove (424).

6. A portable elastic-driven needle inserter with a needle reservoir according to claim 1, characterized in that, A ratchet (5) is fixedly sleeved on the lower part of the lower transmission rod (401). A pawl (6) is rotatably connected to the inner wall of the bottom of the lower cylinder (1). The pawl (6) is engaged in the tooth groove outside the ratchet (5). A spring (7) is fixedly connected to the inner wall of the bottom of the lower cylinder (1). The spring (7) abuts against the side wall of the pawl (6).

7. A portable elastic-driven needle inserter with a needle reservoir according to claim 1, characterized in that, The bottom of the lower cylinder (1) is connected to a needle outlet tube (8), which is positioned directly opposite the needle insertion hole (403).

8. A portable elastic-driven needle inserter with a needle reservoir according to claim 1, characterized in that, A pen clip (9) is fixedly connected to the upper side wall of the upper cylinder (2).

9. A portable elastic-driven needle inserter with a needle reservoir according to claim 3, characterized in that, An anti-slip sleeve (10) is fixedly fitted on the upper side wall of the adjusting sleeve (416).

10. A portable elastic-driven needle inserter with a needle reservoir according to claim 2, characterized in that, The inner wall of the upper cylinder (2) is provided with multiple guide grooves (11), and multiple guide rods (12) are fixedly connected to the lower side wall of the lifting sleeve (409). The multiple guide rods (12) are slidably connected in the multiple guide grooves (11).

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