A continuous needle delivery device

Abstract

This invention discloses a continuous needle dispensing device, comprising a pressing part and a needle box part; the pressing part includes a striking pin and a housing assembly; the striking pin is fixed to the housing assembly; the tail end of the needle box part is located inside the housing assembly, and the needle box part contains a needle group formed by multiple single needles arranged sequentially; a needle pushing part is installed inside the needle box part, the needle pushing part has elastic potential energy, and the elastic potential energy of the needle pushing part acts on the needle group, thereby ensuring that the leading single needle of the needle group is always pushed to face the striking pin; by operating the pressing part to move axially relative to the needle box part, the striking pin abuts against the facing single needle until the single needle is ejected. Through this structure, the cumbersome process of repeatedly removing needles in traditional methods is effectively avoided, and the convenience of acupuncture treatment is significantly improved.

Description

Technical Field

[0001] This invention relates to a medical device, specifically a continuous needle dispensing device for acupuncture treatment. Background Technology

[0002] Acupuncture can effectively help patients eliminate diseases and relieve pain, and has unique and significant effects on many diseases. At the same time, acupuncture is also an important part of traditional Chinese medicine treatment. Acupuncture treatment increasingly tests the user's skills, especially in needle insertion. Needle insertion techniques have high requirements for needle insertion stability and precision. In addition, it is generally necessary to insert needles into multiple points on the body to achieve combined treatment.

[0003] Currently, the continuous manual procedures of acupuncture, including needle removal, alignment, and insertion, require users to maintain a high level of concentration, resulting in significant energy and physical exertion. Therefore, optimizing or improving acupuncture procedures to reduce this energy expenditure is a current research direction. Summary of the Invention

[0004] In view of the problems existing in the prior art, the present invention provides a new technical solution, namely, by designing a device that can continuously dispense needles, the operation of constantly retrieving needles in the acupuncture process is optimized, reducing the labor intensity of the user, and improving the efficiency of acupuncture by using the needle dispensing device in this solution.

[0005] Specifically, the detailed technical solution proposed in this invention is as follows:

[0006] A continuous needle dispensing device includes a pressing part and a needle box part;

[0007] The pressing part includes a striking pin and a housing assembly; the striking pin is fixed to the housing assembly;

[0008] The tail end of the needle box is located inside the outer shell assembly, and the needle box contains a needle group formed by a plurality of single needles arranged in sequence.

[0009] The needle box is equipped with a needle pushing part, which has elastic potential energy. The elastic potential energy of the needle pushing part acts on the needle assembly, thereby pushing the single needle at the foremost end of the needle assembly to face the striking pin. The pressing part is operated to move axially relative to the needle box, so that the striking pin abuts against the facing single needle until the single needle is pushed out.

[0010] Preferably, the needle propulsion section includes a needle pusher wheel and a steel coil; the needle box section includes a needle outlet box;

[0011] The pusher wheel is connected to the tail end of the needle box, and the pusher wheel and the needle box are coaxial; the pusher wheel has an outwardly extending pusher boss.

[0012] The tail end of the needle box has a C-shaped countersunk blind groove, and one end of the countersunk blind groove forms a needle outlet hole that penetrates the needle box.

[0013] The needle assembly is arranged sequentially within the countersunk blind groove;

[0014] The steel coil is mounted between the pusher wheel and the needle box. The steel coil has a coiled structure and thus has elastic potential energy. The pusher protrusion always abuts against the last single needle of the needle assembly, thereby ensuring that the first single needle of the needle assembly is always directly above the needle outlet.

[0015] Preferably, the tail end of the needle box also has a limiting boss extending toward the needle pusher wheel; the limiting boss is configured to restrict the needle pusher boss from rotating one revolution.

[0016] Preferably, the pusher wheel platform has a convex three-tiered structure, the third tier of the pusher wheel platform has a first locking slot, the needle outlet box has a concave tiered structure corresponding to the pusher wheel platform, and the needle outlet box has a second locking slot; the steel coil is sleeved on the third tier, and the innermost end of the steel coil is fixed to the first locking slot; the outermost end of the steel coil is fixed to the second locking slot.

[0017] Preferably, the needle box section further includes a needle box cover, the needle box cover having a C-shaped through groove corresponding to the countersunk blind groove; the needle box cover is fitted to the push needle wheel, and the needle box cover is fixed to the needle outlet box; the tail of the needle assembly is located in the through groove.

[0018] Preferably, the needle box cover also has a four-pronged flange; the needle dispensing box has a locking position corresponding to the four-pronged flange; the four-pronged flange passes through the needle pusher wheel and engages with the locking position to prevent the needle box cover and the needle dispensing box from rotating relative to each other;

[0019] Furthermore, the needle box cover has four bolt positions, and the needle outlet box also has four bolt holes. By tightening the bolts, the needle box cover, the needle pusher wheel, the steel coil, and the needle outlet box form the needle box section.

[0020] Preferably, the through groove is a countersunk structure; the countersunk portion of the through groove is covered with a C-shaped cover plate.

[0021] Preferably, the outer casing assembly includes a tail cap, an outer casing body, a limiting platform, a spring, a limiting cover, a guide rod, and a fine-tuning column;

[0022] The firing pin is fixed to the tail cap; the outer shell body is fixed to the tail cap by screws;

[0023] The fine-tuning column is threadedly connected to the tail cap.

[0024] The guide rod has a head and a rod portion; the rod portion of the guide rod passes through the limiting platform and the spring and is threadedly connected to the fine-tuning column; the spring is sleeved on the guide rod, and the head of the guide rod is restricted from passing through the limiting platform; the tail cap, the outer shell body, the limiting platform, the spring, the guide rod and the fine-tuning column together constitute the pressing part;

[0025] The inner diameter of the tail of the limiting cap is smaller than the outer diameter of the needle box cover. The limiting cap is introduced from the needle box and threadedly connected to the outer shell body. When the tail of the limiting cap abuts against the needle box cover, the needle box part and the pressing part are connected.

[0026] Preferably, the inner sidewall of the outer casing is further provided with a guide rail; the guide rail extends along the axial direction of the outer casing.

[0027] The outer wall of the limiting platform is provided with a first guide groove, and the outer wall of the needle box cover is provided with a second guide groove; the guide rail is assembled in the first guide groove and the second guide groove.

[0028] Preferably, the fine-tuning column is marked with graduations along the axial direction.

[0029] The beneficial effects achieved by adopting this technical solution are as follows:

[0030] This solution features a cleverly designed needle dispensing device that enables continuous needle dispensing through the coordination of the pressing section and the needle box section. Users place the prepared needles into the needle box beforehand, and when performing acupuncture on a patient, they can dispense the needles by pressing the pressing section. Each press of the pressing section performs one acupuncture operation. This structure effectively avoids the tediousness of repeatedly removing needles in traditional methods, significantly improving the convenience of acupuncture treatment. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the needle structure;

[0032] Figure 2 This is a simplified diagram showing the assembly structure of the pressing part and the needle box part.

[0033] Figure 3 Exploded view of all components of the needle box section;

[0034] Figure 4 A 3D schematic diagram of the needle dispensing box;

[0035] Figure 5This is a three-dimensional schematic diagram of the pusher wheel platform;

[0036] Figure 6 A 3D illustration of the needle box lid Figure 1 ;

[0037] Figure 7 A 3D illustration of the needle box lid Figure 2 ;

[0038] Figure 8 Exploded view of part of the needle box section when the needle pusher wheel and steel coil are installed into the needle box;

[0039] Figure 9 This is a complete structural diagram of the needle box section;

[0040] Figure 10 Explosive structure for all components of the pressing part Figure 1 ;

[0041] Figure 11 Explosive structure for all components of the pressing part Figure 2 ;

[0042] Figure 12 This is a schematic diagram of the fine-tuning column structure;

[0043] Figure 13 A breakdown diagram showing the pressing part, needle box part, and limiting cap;

[0044] Figure 14 This is a perspective view of the continuous needle delivery device;

[0045] Figure 15 This is a cross-sectional view of the continuous needle delivery device.

[0046] The components include: 100 needle assembly, 101 needle tip, 102 needle handle, 200 pressing part, 201 impact pin, 202 tail cap, 203 outer shell body, 2031 guide rail, 204 limiting platform, 2041 first guide groove, 205 spring, 206 limiting cover, 207 guide rod, 208 fine adjustment column, 300 needle box part, 310 needle outlet box, 311 countersunk blind groove, 312 limiting boss, 313 second bayonet, 314 locking position, 315 needle outlet hole, 316 bolt hole, 320 needle box cover, 3201 second guide groove, 321 through groove, 322 cover plate, 323 four-claw flange, 324 bolt position, 325 bolt, 326 clearance position, 400 needle push part, 410 needle push wheel platform, 411 needle push boss, 412 first bayonet, and 420 steel coil. Detailed Implementation

[0047] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0048] This embodiment provides a continuous needle output device, which enables continuous output of needles, thereby assisting the user in completing acupuncture treatment for patients.

[0049] Before introducing this scheme, let's briefly explain the needle structure here. See [link to documentation]. Figure 1 The needle consists of a needle tip 101 and a needle handle 102. The diameter of the needle handle 102 is larger than that of the needle tip 101. When performing acupuncture, the user usually holds the needle handle 102 with his / her fingers and inserts the part of the needle tip 101 into the patient's skin using the twisting needle technique.

[0050] The continuous needle dispensing device in this solution is designed based on the above-mentioned needles. Multiple needles can be pre-placed in the continuous needle dispensing device of this solution. During the actual operation, the user can easily dispense the needles and insert them into the patient's skin to complete the acupuncture treatment.

[0051] To facilitate a better understanding of the structure of this device, the continuous needle delivery device mentioned in this solution will be described in detail below.

[0052] In a specific embodiment of this solution, see [link to relevant documentation]. Figure 2 The continuous needle ejection device includes a pressing part 200 and a needle box part 300. Multiple single needles are placed in the needle box part 300, and the continuous ejection of a single needle can be achieved by operating the pressing part 200.

[0053] Specifically, the pressing part 200 includes a striking pin 201 and a housing assembly; the striking pin 201 is fixed to the housing assembly; more specifically, the striking pin 201 is fixedly connected to the edge of the housing assembly, the housing assembly has a central axis, the striking pin 201 also has a central axis, and the central axis of the striking pin 201 is parallel to the central axis of the housing assembly.

[0054] The tail end of the needle box 300 is located inside the outer casing assembly. It can be understood that a part of the needle box 300 is installed inside the pressing part 200, and another part is outside the pressing part 200. The needles are neatly arranged and installed within the area where the needle box 300 and the pressing part 200 are connected. For ease of description later, the structure formed by multiple single needles arranged in sequence is defined as the needle group 100. The needle group 100 is specifically housed in the needle box 300.

[0055] Meanwhile, a needle pushing part 400 is installed inside the needle box 300. The function of the needle pushing part 400 is to push the needles in the needle assembly 100 to feed one by one. Specifically, the needle pushing part 400 has elastic potential energy. The elastic potential energy of the needle pushing part 400 acts on the needle assembly 100, so that the single needle at the front end of the needle assembly 100 is always pushed to face the impact pin 201. The operating pressing part 200 moves axially relative to the needle box 300, so that the impact pin 201 abuts against the facing single needle until the single needle is pushed out and inserted into the patient's body.

[0056] In this design, the needle propulsion unit 400 is specifically installed inside the needle box unit 300, cooperating with the needle box unit 300 to enable continuous insertion of individual needles in the needle assembly 100. Finally, the impact of the striking pin 201 pushes out the single needle at the very front of the needle assembly 100. Therefore, in the following description, the composition and structure of the needle propulsion unit 400 and the needle box unit 300 will be explained first to facilitate understanding of their operating principles, and the pressing unit 200 will be described separately at the end.

[0057] For details, see Figures 3-9 The needle propulsion section 400 includes a needle pusher wheel 410 and a steel coil 420; and the needle box section 300 includes a needle delivery box 310; in the assembly structure, the needle pusher wheel 410 is connected to the tail end of the needle delivery box 310, and the needle pusher wheel 410 and the needle delivery box 310 are coaxial; the needle pusher wheel 410 has an outwardly extending needle pusher boss 411; at the tail end of the needle delivery box 310, there is a C-shaped countersunk blind groove 311, and one end of the countersunk blind groove forms a needle delivery hole 315 that penetrates the needle delivery box 310, and the needle delivery hole 315 is connected to the countersunk blind groove 311 as a whole; the needle assembly 100 is arranged sequentially in the countersunk blind groove 311.

[0058] The needle assembly 100 is arranged in a suspended manner within the countersunk blind groove 311. This is because each needle consists of a needle tip 101 and a needle shank 102, with the diameter of the needle shank 102 being larger than that of the needle tip 101. The countersunk structure of the countersunk blind groove 311 is mainly used to restrict the needle shank 102. In other words, the space gap of the countersunk blind groove 311 is just enough for the needle tip 101 to pass through, but the countersunk structure of the countersunk blind groove 311 can also restrict the needle shank 102. Therefore, when the needle is placed in the countersunk blind groove 311, it is suspended. The purpose of this design is to ensure that the bottom of the entire needle assembly 100 does not come into contact with the needle ejector box and generate friction. Under the action of the needle pusher wheel 410, it can move smoothly. The diameter of the needle ejection hole 315 is larger than that of the needle shank 102, so the needle can be ejected smoothly.

[0059] The function of the steel coil 420 is to provide an elastic pushing force for the needle pusher wheel 410; specifically, the steel coil 420 is clamped between the needle pusher wheel 410 and the needle outlet box 310. The steel coil 420 has an elastic potential energy due to its wound structure. The wound steel coil 420 is installed between the needle pusher wheel 410 and the needle outlet box 310, and both ends of the steel coil 420 are fixed to the needle pusher wheel 410 and the needle outlet box 310 respectively. Thus, under the action of the rebound force of the steel coil 420, the needle pusher wheel 410 will rotate relative to the needle outlet box 310 along the axis (this...). Figure 5 In the process, the direction of rotation of the pusher wheel 410 is counterclockwise; the pusher protrusion 411 on the pusher wheel 410 always abuts against the single needle at the very end of the needle assembly 100; therefore, as long as the pusher wheel 410 rotates, under the push of the pusher protrusion 411, the single needle at the very front of the needle assembly 100 is always directly above the needle outlet, waiting for the next action of the impact needle 201 in the pressing part 200. At the same time, the needle is squeezed by the pusher protrusion 411, and the needle will not fall out of the needle outlet 315.

[0060] In this design, the needle assembly 100 is placed in the countersunk blind groove 311, which is C-shaped. Therefore, after the needles are filled in the countersunk blind groove 311, the needle assembly 100 will also eventually be C-shaped. When the needles in the needle assembly 100 are output one by one, the pusher boss 411 will rotate once. In order to ensure that the steel coil 420 can maintain efficient rebound potential energy, a limiting boss 312 extending towards the pusher wheel 410 is provided at the tail end of the needle box 310. The limiting boss 312 corresponds to the pusher boss 411 and is mainly used to limit the pusher boss 411 from rotating once. At the same time, the position of the limiting boss 312 corresponds to the position of the C-shaped countersunk blind groove 311 and the needle outlet 315, so that all the needles in the needle assembly can be pushed by the pusher boss 411.

[0061] That is, the pusher boss 411 pushes the needle assembly 100 until all the needles in the needle assembly 100 are output. Then the pusher boss 411 will be blocked by the limit boss 312 and will not be able to rotate a second time. Only after the pusher boss 411 is pushed back to its original position can the needles be rearranged and placed in the countersunk blind groove 311.

[0062] The above structure can effectively ensure the elasticity of the steel coil 420, and prevent the elastic potential energy accumulated in the steel coil 420 from decreasing after the pusher boss 411 rotates continuously, thus affecting the feeding effect of the needle in the device.

[0063] Optionally, the pusher wheel 410 has a convex three-stage stepped structure, and the third step of the pusher wheel 410 has a first locking slot 412. The needle box 310 has a concave stepped structure corresponding to the pusher wheel 410, and the needle box 310 has a second locking slot 313. The steel coil 420 is sleeved on the third step, and the innermost end of the steel coil 420 is fixed to the first locking slot 412. The outermost end of the steel coil 420 is fixed to the second locking slot 313.

[0064] The needle pusher wheel 410 is designed with a three-tiered structure. Its main purpose is to better install the steel coil 420. The steel coil 420 is better shaped when mounted on the third tier, which helps to prevent the steel coil 420 from loosening and deforming during subsequent use. The first and second latches 313 allow the steel coil 420 to be better engaged with the needle pusher wheel 410 and the needle box 310. Compared with fixing the steel coil 420 to the needle pusher wheel 410 and the needle box 310, the latching structure is more flexible and can be easily disassembled and replaced with a new steel coil 420 when it becomes fatigued.

[0065] The needle box section 300 in this solution also includes a needle box cover 320, which has a C-shaped through groove 321 that corresponds to the countersunk blind groove 311 described above. During installation, the needle box cover 320 fits against the needle pusher wheel 410 and is fixed to the needle delivery box 310, so that the tail of the needle assembly 100 is located in the through groove 321. The through groove 321 has a countersunk structure. At the same time, the countersunk part of the through groove 321 is covered with a C-shaped cover plate 322. When loading the needle, the needle passes through the through groove 321 and is placed in the countersunk blind groove 311. The cover plate 322 prevents the needle from falling out.

[0066] Optionally, the fixing between the needle box cover 320 and the needle delivery box 310 includes alignment and locking; specifically, the needle box cover 320 also has a four-pronged flange 323; the needle delivery box 310 has a locking position 314 corresponding to the four-pronged flange; the four-pronged flange 323 passes through the needle pusher wheel 410 and engages with the locking position 314 to prevent the needle box cover 320 and the needle delivery box 310 from rotating relative to each other; and the needle box cover 320 has four bolt positions 324, and the needle delivery box 310 also has four bolt holes 316, and the fastening bolts 325 pass through the bolt positions 324 and are fixed to the bolt holes 316, so that the needle box cover 320, the needle pusher wheel 410, the steel coil 420 and the needle delivery box 310 form the needle box part 300.

[0067] It is not difficult to understand that the needle box cover 320 is fixed to the needle outlet box 310, while the needle pusher wheel 410 can rotate between the needle box cover 320 and the needle outlet box 310 under the action of the steel coil 420; that is, the needle box cover 320 and the needle outlet box 310 restrict the axial movement of the needle pusher wheel 410, but the needle pusher wheel 410 can rotate along the axis to push the needle assembly 100.

[0068] When the foremost needle in the needle assembly 100 is above the needle outlet 315, the user operates the pressing part 200, causing the striking pin 201 in the pressing part 200 to move axially and strike the needle there, thereby knocking the needle into the needle outlet 315 until the needle comes out from the needle outlet 315 of the needle box 310 and pierces the patient's skin.

[0069] To improve the performance of the pressing part 200, the composition of the outer shell assembly has been designed. For details, please refer to [link / reference needed]. Figures 10-15 The outer casing assembly includes a tail cap 202, an outer casing body 203, a limiting platform 204, a spring 205, a limiting cover 206, a guide rod 207, and a fine-tuning column 208.

[0070] The specific connection structure is as follows: the firing pin 201 is fixed on the tail cover 202; the outer shell 203 is fixed to the tail cover 202 by screws; the fine adjustment column 208 is threadedly connected to the tail cover 202; the guide rod 207 has a head and a rod part; the rod part of the guide rod 207 passes through the limiting platform 204, the spring 205 is threadedly connected to the fine adjustment column 208; the spring 205 is sleeved on the guide rod 207, and the head of the guide rod 207 is restricted from passing through the limiting platform 204; The tail cap 202, the outer shell 203, the limiting platform 204, the spring 205, the guide rod 207, and the fine-tuning column 208 together form the pressing part 200; and the inner diameter of the tail of the limiting cap 206 is smaller than the outer diameter of the needle box cover 320. The limiting cap 206 is introduced from the needle box 310 and threadedly connected to the outer shell 203. When the tail of the limiting cap 206 abuts against the needle box cover 320, the pressing part 200 and the needle box part 300 are connected together.

[0071] This can be understood as follows: the outer shell 203 of the pressing part 200 is fitted onto the needle box cover 320, and a limiting cover 206 is threaded onto the front end of the outer shell 203, while the limiting cover 206 abuts against the needle box cover 320; thus ensuring the stability of the connection between the pressing part 200 and the needle box part 300.

[0072] The specific usage method is as follows: point the needle outlet 315 of the device at the area of ​​the patient that needs acupuncture, and the user presses down the pressing part 200. At this time, the outer shell 203 of the pressing part 200 moves axially downward relative to the needle box 300. The spring 205 in the pressing part 200 is compressed and accumulates elastic potential energy. At the same time, the striking pin 201 in the pressing part 200 will strike the corresponding needle. Continue pressing until the needle is inserted into the patient's skin. After the needle is inserted, the user releases the pressing part 200. The spring 205 in the pressing part 200 rebounds, and the outer shell 203 moves axially back to its original position relative to the needle box 300 until the limiting cover 206 abuts against the needle box cover 320 and stops. Of course, during the reset and rebound of the entire pressing part, after the striking pin 201 disengages from the needle outlet 315, the needle assembly 100 in the needle box 300 is reloaded under the pushing action of the needle pusher wheel 410, so that a needle is positioned directly above the needle outlet 315, waiting for the striking pin 201 to move again, and so on.

[0073] To allow the guide rod 207 to move smoothly when pressed, a clearance 326 is provided on the needle box cover 320.

[0074] When using the entire device to perform acupuncture on a patient, each press of the 200-degree pressure point will cause a needle to pierce the patient's skin; continuous pressing will allow for continuous acupuncture at different locations on the patient's body, making it highly efficient and convenient.

[0075] Optionally, to ensure smooth axial movement of the outer shell body 203 relative to the needle box portion 300, a guide rail 2031 is provided on the inner sidewall of the outer shell body 203; the guide rail extends axially along the outer shell body 203; the outer wall of the limiting platform 204 is provided with a first guide groove 2041, and the outer wall of the needle box cover 320 is provided with a second guide groove 3201; the guide rail 2031 is assembled in the first guide groove 2041 and the second guide groove 3201; when the outer shell body 203 moves axially relative to the needle box portion 300, it also moves relative to the limiting platform 204 and the needle box cover 320. At this time, the guide rail 2031 moves along the first guide groove 2041 and the second guide groove 3201. Therefore, during assembly, the needle box cover 320 and the limiting platform 204 need to be accurately aligned.

[0076] Considering the different need for acupuncture among different patients, especially regarding variations in acupuncture depth, this solution includes a fine-tuning post 208 marked with graduations along its axial direction. Because the fine-tuning post 208 is connected to the tail cap 202 via a threaded connection, rotating the fine-tuning post 208 during use will adjust the guide rod 207, ultimately adjusting the distance between the limiting platform 204 and the tail cap 202. This allows the impact pin 201 to be closer or farther from the opposing needle, resulting in deeper or shallower needle penetration upon impact. In short, adjusting the fine-tuning post 208 allows for precise adjustment and control of the acupuncture depth.

[0077] This concludes the detailed structural description of the device. For the assembly steps, please refer to the following:

[0078] In this solution, the assembly method can be divided into two major modules, namely, the pressing part 200 and the needle box part 300 can be assembled separately without affecting each other. Finally, under the action of the limiting cover 206, the connection between the pressing part 200 and the needle box part 300 is realized.

[0079] For the assembly sequence of the needle box section 300, see [link / reference]. Figures 3-9 :

[0080] Step 1: Fit the steel coil 420 onto the third step of the pusher wheel 410, and fix the innermost end of the steel coil 420 to the first bayonet; fix the outermost end of the steel coil 420 to the second bayonet 313; then install the steel coil 420 and the pusher wheel 410 into the needle box 310 at the same time.

[0081] Step 2: Install the needle box cover 320. The four-claw flange 323 of the needle box cover 320 passes through the needle pusher wheel 410 and engages with the locking position 314 inside the needle box 310. The fastening bolt 325 passes through the four bolt positions 324 and engages with the four bolt holes 316 on the needle box 310, so that the needle box cover 320 is fixed to the needle box 310.

[0082] Step 3: Rotate the pusher boss 411 by hand to make the steel coil 420 contract and store force;

[0083] Step 4: The needle assembly 100 passes through the C-shaped through groove on the needle box cover 320 and is placed into the C-shaped countersunk blind groove 311. At this time, the needle handle 102 of the needle assembly 100 is located in the through groove of the needle box cover 320. The push needle boss 411 is released. Under the elastic force of the steel coil 420, the push needle boss 411 presses the needle assembly 100, giving the needle assembly 100 pressure in the direction of the needle outlet 315.

[0084] Fifth; simply cover with the cover plate 322.

[0085] For the assembly steps of the pressing part 200, see [link to assembly instructions]. Figures 10-11 :

[0086] Step 1: Secure the firing pin 201 to the tail cap 202;

[0087] Step 2: Pass the rod part of the guide rod 207 through the limiting platform 204 and the spring 205, and thread it to the fine adjustment column 208; thread the fine adjustment column 208 to the tail cap 202.

[0088] Step 3: Assemble the outer shell body 203. Fix the outer shell body 203 to the tail cover 202 with screws. Before fixing, the guide rail 2031 on the inner side wall of the outer shell body 203 needs to correspond to the first guide groove 2041 on the limiting platform 204 and the second guide groove 3201 on the needle box cover 320.

[0089] See Figures 13-14 The pressing part and the needle box part are aligned and assembled. The limiting cover 206 is introduced from the needle box 310 until it is threadedly connected to the outer shell 203. When the tail of the limiting cover 206 abuts against the needle box cover 320, the pressing part 200 and the needle box part 300 are connected and assembled.

[0090] When the needle is finished and the needle box needs to be replaced, the limiting cover 206 can be turned off by turning it off. Once the limiting cover 206 is disengaged, the pressing part 200 and the needle box part 300 will separate, and then the needle box part 300 containing the needle can be replaced; or the needle box part 300 can be removed, the locking cover 322 can be opened, and the needle pusher boss 411 can be rotated in the opposite direction to install the needle.

[0091] This technical solution, through a clever design of the needle dispensing device, enables continuous needle dispensing operations through the cooperation of the pressing part and the needle box part. That is, the user puts the prepared needles into the needle box part in advance, and when performing acupuncture on the patient, the needle dispensing action is completed by operating the pressing part. Each press of the pressing part in the device will perform a needle dispensing operation. Through the above structure, the tediousness of repeatedly taking out needles in the traditional way is effectively avoided, and the convenience of acupuncture is significantly improved.

[0092] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A continuous needle dispensing device, characterized in that, It includes a pressing part (200) and a needle box part (300); The pressing part (200) includes a striking pin (201) and a housing assembly; the striking pin (201) is fixed to the housing assembly; The tail end of the needle box (300) is located inside the outer shell assembly, and the needle box (300) contains a needle group (100) formed by a plurality of single needles arranged in sequence. A needle pushing part (400) is installed inside the needle box part (300). The needle pushing part (400) has elastic potential energy. The elastic potential energy of the needle pushing part (400) acts on the needle assembly (100), thereby causing the single needle at the foremost end of the needle assembly (100) to always be pushed to face the impact pin (201). The pressing part (200) is operated to move axially relative to the needle box part (300), so that the impact pin (201) abuts against the single needle facing the needle until the single needle is pushed out. The needle propulsion section (400) includes a needle pusher wheel (410) and a steel coil (420); the needle box section (300) includes a needle delivery box (310); The pusher wheel (410) is connected to the tail end of the needle box (310), and the pusher wheel (410) and the needle box (310) are coaxial; the pusher wheel (410) has an outwardly extending pusher boss (411). The tail end of the needle box (310) has a C-shaped countersunk blind groove (311), and one end of the countersunk blind groove (311) has a needle outlet hole (315) that penetrates the needle box (310). The needle box section (300) also includes a needle box cover (320), which has a C-shaped through groove (321) that corresponds to the countersunk blind groove (311). The needle assembly (100) is arranged sequentially in the countersunk blind groove (311); the steel coil (420) is clamped between the pusher wheel (410) and the needle box (310), and the steel coil (420) has an elastic potential energy due to its coiled structure; the pusher boss (411) always abuts against the last single needle of the needle assembly (100), thereby ensuring that the first single needle of the needle assembly (100) is always directly above the needle outlet (315); The outer casing assembly includes a tail cap (202), an outer casing body (203), a limiting platform (204), a spring (205), a limiting cover (206), a guide rod (207), and a fine-tuning column (208); The firing pin (201) is fixed to the tail cap (202); the outer shell body (203) is fixed to the tail cap (202) by screws; The fine-tuning column (208) is threadedly connected to the tail cap (202); The guide rod (207) has a head and a rod portion; the rod portion of the guide rod (207) passes through the limiting platform (204), the spring (205) and is threadedly connected to the fine-tuning column (208); the spring (205) is sleeved on the guide rod (207), and the head of the guide rod (207) is restricted from passing through the limiting platform (204); the tail cap (202), the outer shell body (203), the limiting platform (204), the spring (205), the guide rod (207) and the fine-tuning column (208) together constitute the pressing part (200); The inner diameter of the tail of the limiting cap (206) is smaller than the outer diameter of the needle box cover (320). The limiting cap (206) is introduced from the needle box (310) and threadedly connected to the outer shell body (203). When the tail of the limiting cap (206) abuts against the needle box cover (320), the needle box part (300) and the pressing part (200) are connected. Rotating the fine adjustment column (208) adjusts the distance between the limiting platform and the tail cap (202) to adjust the needle insertion depth.

2. The continuous needle dispensing device according to claim 1, characterized in that, The tail end of the needle box (310) also has a limiting boss (312) extending toward the pusher wheel (410); the limiting boss (312) is configured to restrict the pusher boss (411) from rotating one revolution.

3. The continuous needle dispensing device according to claim 1, characterized in that, The pusher wheel (410) has a convex three-stage stepped structure. The third step of the pusher wheel (410) has a first latch (412). The needle box (310) has a concave stepped structure corresponding to the pusher wheel (410). The needle box (310) has a second latch (313). The steel coil (420) is sleeved on the third step, and the innermost end of the steel coil (420) is fixed to the first latch (412). The outermost end of the steel coil (420) is fixed to the second latch (313).

4. The continuous needle dispensing device according to claim 3, characterized in that, The needle box cover (320) fits against the needle pusher wheel (410), and the needle box cover (320) is fixed to the needle outlet box (310); the tail of the needle assembly (100) is located in the through groove (321); the needle box cover (320) also has a four-claw flange (323); the needle outlet box (310) has a locking position (314) corresponding to the four-claw flange (323); the four-claw flange (323) passes through the needle pusher wheel (410). 10) It is engaged and fixed with the locking position (314) to prevent the needle box cover (320) and the needle dispensing box (310) from rotating relative to each other; and the needle box cover (320) has four bolt positions (324), and the needle dispensing box (310) also has four bolt holes (316). By tightening the bolts (325), the needle box cover (320), the needle pusher wheel (410), the steel coil (420) and the needle dispensing box (310) form the needle box part (300).

5. The continuous needle dispensing device according to claim 1, characterized in that, The through groove (321) has a countersunk structure; the countersunk part of the through groove (321) is covered with a C-shaped cover plate (322).

6. The continuous needle dispensing device according to claim 1, characterized in that, The inner wall of the outer shell body (203) is also provided with a guide rail (2031); the guide rail extends along the axial direction of the outer shell body (203); The outer wall of the limiting platform (204) is provided with a first guide groove (2041), and the outer wall of the needle box cover (320) is provided with a second guide groove (3201); the guide rail (2031) is assembled in the first guide groove (2041) and the second guide groove (3201).

7. A continuous needle dispensing device according to claim 1, characterized in that, The fine-tuning column (208) is marked with graduations along the axial direction.

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