A fire needle treatment device with replaceable fire needle types

Abstract

The utility model discloses a kind of fire needle treatment appliances of fire needle needle type convenient to replace, the fire needle treatment appliance includes appliance main body, fire needle locking unit, power unit, push needle unit, the power unit is installed in the inside of appliance main body, the push needle unit is installed in the front end of appliance main body, push needle unit is between fire needle locking unit and power unit, the appliance main body includes handle body and launch protection store, launch protection store is located in the upper end of handle body and is fixed into integrated structure with it, fire needle locking unit includes fire needle needle appliance and screw locking mechanism, screw locking mechanism is located in one end of fire needle needle appliance and is connected with fire needle needle appliance, one end of push needle unit is connected with screw locking mechanism by screw, push needle unit is detachably connected with fire needle needle appliance by screw locking mechanism. The fire needle treatment appliance set in the utility model is convenient to replace fire needle needle type, suitable for the installation of different fire needle needle type, clean fire needle needle appliance is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of medical assistive device technology, and in particular to a fire needle therapy device that is easy to replace the type of fire needle. Background Technology

[0002] Fire needling is a commonly used clinical treatment method, applicable to dermatological diseases, surgical carbuncles, and pain management. Current clinical application of fire needling typically involves using an alcohol lamp in conjunction with the needle. The practitioner first heats the needle over the alcohol lamp until it reaches a red-hot to incandescent state, then moves it closer to the patient's affected area to insert the needle. However, this manual needling technique is prone to inaccurate positioning. If the practitioner's hand tremors, the needle may be inserted incorrectly. Especially during prolonged needling sessions, the tremor can cause hand fatigue, hindering the therapeutic effect, increasing patient pain, and reducing treatment efficiency.

[0003] To address issues such as hand tremors and inaccurate needle positioning during manual acupuncture, existing manufacturers have designed a fire needle device. For example, Chinese Patent Publication No. CN113397968A, "Fire Needle Device," discloses a fire needle device including a housing, a needle sheath, a needle, a heating component, a transmission component, and a control component mounted on the housing. The control component receives external force and transmits it to the needle through the transmission component, allowing control of the needle. In this invention, the fire needle is concealed by the needle sheath, reducing patient anxiety. After puncture point positioning, the control component receives the operating force and transmits it to the needle through the transmission component, causing the needle to eject from the needle sheath, facilitating operation. Before ejection, the needle tip can be heated by the heating component, resulting in rapid needle ejection. The needle sheath allows for precise acupoint positioning, and the insertion depth can be preset by adjusting the position of the needle sheath.

[0004] While existing fire needle devices can solve the technical problems in the process of manual acupuncture, they still have the following shortcomings in use:

[0005] 1) Existing fire needle devices conceal the needles in a needle sheath. One type of fire needle device can only be used with one type of needle sheath. However, sometimes the needle sheath structure required is different due to different patient conditions. The use of existing fire needle devices is relatively limited, with low practicality and a relatively simple treatment method.

[0006] 2) The existing needle sheaths are very inconvenient to disassemble and clean. Utility Model Content

[0007] The purpose of this utility model is to overcome the shortcomings of the prior art. This utility model provides a fire needle therapy instrument that is easy to change the type of fire needle, can be applied to different types of fire needles, allows operators to change different types of fire needles at any time, quickly replaces fire needles with different effects, and also facilitates cleaning of the fire needles.

[0008] To solve the above-mentioned technical problems, this utility model provides a fire needle therapy device that facilitates the replacement of fire needle types. The fire needle therapy device includes a device body, a fire needle locking unit, a power unit, and a needle pushing unit. The power unit is installed inside the device body, and the needle pushing unit is installed at the front end of the device body. The needle pushing unit is located between the fire needle locking unit and the power unit. One end of the needle pushing unit is connected to the fire needle locking unit, and the other end of the needle pushing unit is connected to the power unit.

[0009] The main body of the device includes a handle and a firing protection chamber, the firing protection chamber being located at the upper end of the handle and fixed thereto as an integral structure;

[0010] The fire needle locking unit includes a fire needle and a threaded locking mechanism. The threaded locking mechanism is located at one end of the fire needle and connected to the fire needle. One end of the push needle unit is threadedly connected to the threaded locking mechanism. The push needle unit is detachably connected to the fire needle through the threaded locking mechanism.

[0011] Furthermore, the launch protection chamber has a first cavity, the power unit is installed in the first cavity of the launch protection chamber, and the pusher unit is installed at the front end of the launch protection chamber.

[0012] Furthermore, the power unit includes a motor mounting base, a power motor, and a cam. The motor mounting base is fixed to the first cavity of the launch protection chamber. A fixed chamber is formed inside the motor mounting base. The power motor is mounted on the fixed chamber of the motor mounting base. The output shaft of the power motor is connected to the cam. The power unit is connected to the pusher unit through the cam.

[0013] Furthermore, the pusher unit includes a pusher rod, a drive rod, and a bore. The bore is installed in front of the launch shield chamber. The bore has a cavity positioning track inside. One end of the drive rod is connected to the cam of the power unit, and the other end of the drive rod passes through the cavity positioning track of the bore and is connected to one end of the pusher rod. The other end of the pusher rod is fixed with an external threaded internal connector. The internal part of the external threaded internal connector has a first hollow through hole, and the outer wall of the external threaded internal connector has an external thread. The pusher rod is threadedly connected to the threaded locking mechanism through the external threaded internal connector to realize the detachable connection between the pusher unit and the fire needle.

[0014] Furthermore, the fire needle includes a fire needle body, a conical head, and a heat-insulating handle. The conical head is fixed to one end of the fire needle body, and the heat-insulating handle is fixed to the other end of the fire needle body.

[0015] Furthermore, the threaded locking mechanism includes a locking nut, a clamping sleeve, and an internally threaded external connector. The internally threaded external connector has a second hollow through hole inside, and its inner wall has an internal thread. The clamping sleeve is a split bolt with a hollow channel inside. The fire needle passes through the hollow channel inside the clamping sleeve. The locking nut is threadedly connected to the right end of the clamping sleeve so that the locking nut is tightened on the clamping sleeve. One end of the internally threaded external connector is threadedly connected to the left end of the clamping sleeve, and the other end of the internally threaded external connector is screwed tightly to the external thread of the externally threaded internal connector to achieve the connection between the internally threaded external connector and the pusher rod.

[0016] Furthermore, the fire needle therapy device includes a laser alignment structure, which is installed at the upper end of the emission protection chamber of the device body.

[0017] Furthermore, the laser alignment structure includes two sets of fixed bases and a laser emitter. The two sets of fixed bases are symmetrically fixed at the upper end of the emission protection chamber, and the laser emitter is mounted on the fixed bases.

[0018] Compared with the prior art, the technical solution of this utility model has at least the following beneficial effects:

[0019] 1) The fire needle therapy device of this utility model includes a main body, a fire needle locking unit, a power unit, and a needle pushing unit. The power unit is installed inside the main body, and the needle pushing unit is installed at the front end of the main body, located between the fire needle locking unit and the power unit. One end of the needle pushing unit is connected to the fire needle locking unit, and the other end is connected to the power unit. The main body includes a handle and a firing protective chamber. The firing protective chamber is located at the upper end of the handle and is fixed to it as an integral structure. The fire needle locking unit includes a fire needle and a threaded locking mechanism. The threaded locking mechanism is located at one end of the fire needle and connected to the fire needle. One end of the needle pushing unit is threadedly connected to the threaded locking mechanism. The needle pushing unit is detachably connected to the fire needle through the threaded locking mechanism. This utility model, by setting a threaded locking mechanism, allows for detachable connection between the fire needle and the needle pushing unit, facilitating the replacement of fire needle types. It is applicable to the installation of different fire needle types, allowing operators to easily change different fire needle types at any time, and also facilitating the cleaning of the fire needle.

[0020] 2) The fire needle therapy device of this utility model includes a laser alignment structure, which comprises two sets of fixed bases and a laser emitter, with the laser emitter mounted on the fixed bases. The laser beam emitted by the laser emitter can be used for laser positioning of the acupuncture site, allowing for visual positioning of the treatment location. This makes the target point for fire needle insertion higher, improving the visibility and precision of fire needle insertion.

[0021] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, the following detailed description is provided in conjunction with preferred embodiments and accompanying drawings. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of the fire needle therapy device of this utility model.

[0024] Figure 2 This is a structural schematic diagram of the fire needle therapy device of this utility model from another angle.

[0025] Figure 3 This is an exploded view of the fire needle therapy device of this utility model.

[0026] Figure 4 This is an exploded view of the fire needle therapy device of this utility model from another angle.

[0027] Figure 5 This is a detailed cross-sectional view of the measuring structure of this utility model.

[0028] Figure 6 This is a schematic diagram showing the state in which the farthest end of the conical head of the fire needle of this utility model extends 4mm relative to the heat insulation pad.

[0029] Figure 7 This is a demonstration diagram of the fire needle therapy instrument of this utility model being used for acupuncture.

[0030] In the diagram, the device body 1, handle 11, second cavity 111, launch protection chamber 12, first cavity 121, push-pull cover 13, battery 14, circuit board 15, trigger switch 16, switching power supply 17, bolt hole 18, measuring scale 19, fire needle locking unit 2, fire needle 21, conical head 211, heat-insulated handle 212, fire needle body 213, threaded locking mechanism 22, locking nut 221, clamping sleeve 222, and inner... Threaded external connector 223, push pin unit 3, push pin rod 31, pin 32, drive rod 33, bore 34, connecting shaft 35, external threaded internal connector 36, measuring structure 4, measuring ruler 41, strip groove 411, heat insulation pad 42, fixing bolt 43, power unit 5, motor mounting base 51, power motor 52, cam 53, laser alignment structure 6, laser emitter 61, locking block 62, fixing base 63, slot 631, laser beam 7. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] Example 1

[0033] like Figures 1-5As shown, this utility model provides a fire needle therapy device with easy-to-replace 21-needle type fire needle. The fire needle therapy device includes a main body 1, a fire needle locking structure 2, a power unit 5, and a needle pushing unit 3. The power unit 5 is installed inside the main body 1, and the needle pushing unit 3 is installed at the front end of the main body 1. The needle pushing unit 3 is located between the fire needle locking structure 2 and the power unit 5. One end of the needle pushing unit 3 is connected to the fire needle locking structure 2, and the other end of the needle pushing unit 3 is connected to the power unit 5 so that the power unit 5 can drive the needle pushing unit 3 to perform linear reciprocating motion. The device body 1 includes a handle 11 and a firing protection chamber 12. The firing protection chamber 12 is located at the upper end of the handle 11 and is fixed to it as an integral structure. A trigger switch 16 is installed on the front side of the handle 11 and a switching power supply 17 is installed on the rear side of the handle 11. The fire needle locking structure 2 includes a fire needle 21 and a threaded locking mechanism 22. The threaded locking mechanism 22 is located at one end of the fire needle 21 and is connected to the fire needle 21. One end of the push needle unit 3 is threadedly connected to the threaded locking mechanism 22. The push needle unit 3 is detachably connected to the fire needle 21 through the threaded locking mechanism 22. This invention uses the handle 11 as a handheld position, making it convenient for operators to hold the fire needle therapy instrument to treat patients, thus improving the convenience of fire needle therapy. The fire needle 21 is detachably connected to the push needle unit 3 through the threaded locking mechanism 22, which makes it very convenient to replace and quickly install the fire needle 21. It allows operators to change different fire needle types at any time, is applicable to the installation of different fire needle types, facilitates the replacement of fire needles 21 with different effects, and makes it easy to clean the fire needle 21. Most fire needles 21 used in medical institutions can be installed on the fire needle therapy instrument of this invention, greatly improving the applicability, practicality and flexibility of the fire needle therapy instrument.

[0034] The launch protection chamber 12 of this utility model has a first cavity 121 inside, the power unit 5 is installed in the first cavity 121, the push pin unit 3 is installed at the front end of the launch protection chamber 12, and the handle 11 has a second cavity 111 inside. The second cavity 111 houses a battery 14 and a circuit board 15. The battery 14 is located below the circuit board 15 and is electrically connected to the circuit board 15. A push-pull cover 13 is provided at the bottom of the handle 11, covering the bottom of the handle 11. The pull-out cover 13 facilitates the installation of the battery 14 in the second cavity 111 of the handle 11. The power unit 5 includes a motor mounting base 6351, a power motor 52, and a cam 53. The motor mounting base 6351 is fixed to the first cavity 121 of the launch protection chamber 12. A fixed chamber is formed inside the motor mounting base 6351. The power motor 52 is mounted on the fixed chamber of the motor mounting base 6351, and its output shaft is connected to the cam 53. The power unit 5 is connected to the push pin unit 3 via the cam 53. Specifically, the power motor 52 of this invention can be a small DC motor. The power motor 52 is fixed to the first cavity 121 of the launch protection chamber 12 via the motor mounting base 6351, and the rotation of the power motor 52 drives the cam 53 to rotate.

[0035] The fire needle therapy device of this utility model includes a laser alignment structure 6, which is installed at the upper end of the emission protection chamber 12 of the device body 1. The laser alignment structure 6 includes two sets of fixing seats 63 and a laser emitter 61. The two sets of fixing seats 63 are symmetrically fixed at the upper end of the emission protection chamber 12, and the laser emitter 61 is mounted on the fixing seats 63. Specifically, each set of fixing seats 63 has a slot 631, and a locking block 62 that cooperates with the slot 631 is fixed at the bottom of the laser emitter 61. The laser emitter 61 can be detachably locked into the slots 631 of the two sets of fixing seats 63 through the locking block 62 at its bottom, which greatly facilitates the movement and fixation of the laser emitter 61. The laser beam 7 emitted by the laser emitter 61 can laser-locate the acupuncture site and visually locate the treatment position, making the target point of the fire needle 21 higher, improving the visibility and high precision of the fire needle 21, and providing the operator with the most direct and accurate indication of the needle insertion target position, reducing the difficulty of operation for the operator, and effectively reducing patient pain.

[0036] The fire needle therapy device of this utility model also includes a measuring structure 4, which is installed on one side of the emission protection chamber 12. The measuring structure 4 includes a measuring ruler 41, an insulating pad 42, and a fixing bolt 43. The measuring ruler 41 has a strip groove 411 in the middle. The emission protection chamber 12 of the device body 1 has a bolt hole 18 that cooperates with the fixing bolt 43 on one side. The fixing bolt 43 is slidably inserted into the strip groove 411 of the measuring ruler 41. The measuring ruler 41 is installed on one side of the emission protection chamber 12 by cooperating with the fixing bolt 43 and the strip groove 411. The insulating pad 42 is located at one end of the measuring ruler 41 and connected to the measuring ruler 41. The mounting position of the measuring ruler 41 and the emission protection chamber 12 is also provided with a measuring scale 19 that cooperates with the scale reading of the measuring ruler 41. The measuring scale 19 is set on the emission protection chamber 12. In practice, the fixing bolt 43 can be an internal hexagon screw. By tightening and loosening the fixing bolt 43, the measuring scale 41 can be fixed and disassembled from one side of the launch protection chamber 12. The measuring scale 41 can be a straight ruler-shaped metal rod with a strip groove 411 and graduations. One end of the measuring scale 41 is connected to the heat insulation pad 42. The cross-sectional structure of the measuring scale 41 is a right trapezoid. The heat insulation pad 42 can play a role in rapid heat conduction. The measuring scale 19 has a range of 0-5mm. By combining the scale readings of the measuring dial 19 and the measuring ruler 41, the extension length of the measuring ruler 41 can be quickly and accurately adjusted before acupuncture, thereby controlling the insertion depth of the fire needle 21. Using the extension length of the measuring ruler 41 as a reference height, the heat insulation pad 42 of the measuring ruler 41 can be supported on the patient's skin during acupuncture to avoid positioning errors caused by hand tremors when the fire needle 21 is suspended in the air. The measuring ruler 41 also plays a role in stabilizing the reference height, which can stably control the depth of the fire needle 21 inserted into the skin each time.

[0037] In this embodiment of the utility model, the pusher unit 3 includes a pusher rod 31, a drive rod 33, and a bore 34. The bore 34 is installed in front of the firing protection chamber 12. The interior of the bore 34 is provided with a cavity positioning track. One end of the drive rod 33 is connected to the cam 53 of the power unit 5. The other end of the drive rod 33 passes through the cavity positioning track of the bore 34 and is connected to one end of the pusher rod 31. The other end of the pusher rod 31 is fixed with an external threaded inner connector 36. The interior of the external threaded inner connector 36 is provided with a first hollow through hole. The outer wall of the external threaded inner connector 36 is provided with an external thread. The pusher rod 31 is threadedly connected to the threaded locking mechanism 22 through the external threaded inner connector 36 to realize the detachable connection between the pusher unit 3 and the fire needle 21. In its specific implementation, this invention features a connecting shaft 35 at the connection point between the drive rod 33 and the cam 53. The connecting shaft 35 connects one end of the drive rod 33 to the cam 53. The needle-pushing unit 3, via a needle-pushing rod 31, cooperates with the drive rod 33 and the cam 53, thereby converting the circular motion of the cam 53 into the linear reciprocating motion of the needle-pushing rod 31 via the drive rod 33. This, in turn, drives the fire needle 21 to reciprocate, adjusting the depth of needle insertion. The bore 34 is primarily used to determine the linear reciprocating motion trajectory of the needle-pushing rod 31. The needle-pushing unit 3 of this invention includes a pin 32 located at the connection point between the drive rod 33 and the needle-pushing rod 31. One end of the needle-pushing rod 31 is fixed to the other end of the drive rod 33 via the pin 32.

[0038] This utility model includes a fire needle body 213, a conical head 211, and a heat-insulating handle 212 in the fire needle tool 21. The conical head 211 is fixed to one end of the fire needle body 213, and the heat-insulating handle 212 is fixed to the other end of the fire needle tool 21. The heat-insulating handle 212 is formed by winding heat-insulating metal wire. The heat-insulating handle 212 provided on the fire needle tool 21 is mainly to facilitate the operator to hold the fire needle tool 21.

[0039] The threaded locking mechanism 22 of this utility model includes a locking nut 221, a clamping sleeve 222, and an internally threaded external connector 223. The internally threaded external connector 223 has a second hollow through hole inside, and the inner wall of the internally threaded external connector 223 has an internal thread. The clamping sleeve 222 is a split bolt with a hollow channel inside. The fire needle 21 passes through the hollow channel inside the clamping sleeve 222 through its fire needle body 213. The locking nut 221 is threadedly connected to the right end of the clamping sleeve 222 so that the locking nut 221 is tightened on the clamping sleeve 222, thereby clamping the fire needle 21 in the clamping sleeve 222. One end of the internally threaded external connector 223 is threadedly connected to the left end of the clamping sleeve 222, and the other end of the internally threaded external connector 223 is screwed tightly to the external thread of the externally threaded internal connector 36 through the internal thread to realize the connection between the internally threaded external connector 223 and the pusher rod 31. In specific implementation, the externally threaded internal connector 36 of this utility model is a hollow internal sleeve with external threads on its outer wall. One end of the externally threaded internal connector 36 is connected to the drive rod 33 via a pin 32. The externally threaded internal connector 36 is threadedly connected to the internally threaded external connector 223. The locking nut 221 can be a hexagonal nut, which can be threadedly connected to the clamping sleeve 222. The internally threaded external connector 223 of this utility model is a cylindrical sleeve with an internal cavity and internal threads on its inner wall. The internally threaded external connector 223 and the externally threaded internal connector 36 are tightened together through a threaded connection to lock the connection. Nut 221 is threadedly connected to the right end of clamping sleeve 222, causing clamping sleeve 222 to contract under force, thereby clamping the fire needle 21 that passes through the hollow channel inside clamping sleeve 222. The internally threaded external connector 223 is threadedly connected to the left end of clamping sleeve 222. The thread diameter of clamping sleeve 222 gradually increases axially from the left end to the right end, with the thread diameter being larger closer to the internally threaded external connector 223. Therefore, tightening the locking nut 221 towards the internally threaded external connector 223 of clamping sleeve 222 will cause the clamping sleeve 222 to clamp the fire needle 21 more tightly. The threaded locking mechanism 22 designed in this invention greatly facilitates the quick disassembly and installation of the fire needle 21, and the rapid replacement of the fire needle 21, significantly improving the application range of fire needle therapy instruments.

[0040] The installation process for the fire needle 21 includes the following steps:

[0041] First, pass the fire needle 21 through the second hollow through hole of the internally threaded external connector 223;

[0042] Next, tighten the threads of the internal threaded external connector 223 and the external threaded internal connector 36 of the pusher rod 31 to complete the initial installation of the fire needle 21;

[0043] Then, let the fire needle 21 pass through the clamping sleeve 222;

[0044] Finally, rotate the locking nut 221 and the clamping sleeve 222 so that the locking nut 221 is tightened on the clamping sleeve 222, so that the clamping sleeve 222 clamps the fire needle 21, thus completing the final fixation of the fire needle 21.

[0045] The needle insertion procedure of this utility model's fire needle therapy device is as follows: Taking the example that the fire needle 21 needs to be inserted into the patient's skin to a depth of 4mm for this treatment.

[0046] First, move the measuring ruler 41 back so that it aligns with the 0 mark on the measuring scale 19. The reading of the measuring ruler 41 is 17.6 mm. The heat insulation pad 42 at one end of the measuring ruler 41 is moved back 4 mm relative to the farthest end of the conical head 211 of the fire needle 21. Tighten the fixing bolt 43. At this time, the farthest end of the conical head 211 of the fire needle 21 extends 4 mm relative to the heat insulation pad 42.

[0047] Then, turn on the power supply 17. At this time, the laser emitter 61 emits a laser beam 7. After the fire needle 21 is heated red by the external heat source, the heat insulation pad 42 at one end of the measuring ruler 41 is pressed against the patient's skin as the support point and reference height control for this fire needle operation.

[0048] Finally, press the trigger switch 16 to start the power motor 52 to drive the linear reciprocating motion of the fire needle 21. The farthest end of the conical head 211 of the fire needle 21 extends 4mm relative to the heat insulation pad 42, which is the depth to which the fire needle 21 penetrates the patient's skin by 4mm.

[0049] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A fire needle therapy instrument with easily replaceable fire needle types, characterized in that: The fire needle therapy device includes a device body, a fire needle locking unit, a power unit, and a needle pushing unit. The power unit is installed inside the device body, and the needle pushing unit is installed at the front end of the device body. The needle pushing unit is located between the fire needle locking unit and the power unit. One end of the needle pushing unit is connected to the fire needle locking unit, and the other end of the needle pushing unit is connected to the power unit. The main body of the device includes a handle and a firing protection chamber, the firing protection chamber being located at the upper end of the handle and fixed thereto as an integral structure; The fire needle locking unit includes a fire needle and a threaded locking mechanism. The threaded locking mechanism is located at one end of the fire needle and connected to the fire needle. One end of the push needle unit is threadedly connected to the threaded locking mechanism. The push needle unit is detachably connected to the fire needle through the threaded locking mechanism.

2. The fire needle therapy device according to claim 1, characterized in that: The launch protection chamber has a first cavity, the power unit is installed in the first cavity of the launch protection chamber, and the pusher unit is installed at the front end of the launch protection chamber.

3. The fire needle therapy device according to claim 2, characterized in that: The power unit includes a motor mounting base, a power motor, and a cam. The motor mounting base is fixed to the first cavity of the launch protection chamber. A fixed cavity is formed inside the motor mounting base. The power motor is installed on the fixed cavity of the motor mounting base. The output shaft of the power motor is connected to the cam. The power unit is connected to the pusher unit through the cam.

4. The fire needle therapy device according to claim 1, characterized in that: The pusher unit includes a pusher rod, a drive rod, and a bore. The bore is installed in front of the launch shield chamber. The bore has a cavity positioning track inside. One end of the drive rod is connected to the cam of the power unit. The other end of the drive rod passes through the cavity positioning track of the bore and is connected to one end of the pusher rod. The other end of the pusher rod is fixed with an external threaded internal connector. The internal part of the external threaded internal connector has a first hollow through hole. The outer wall of the external threaded internal connector has external threads. The pusher rod is threadedly connected to the threaded locking mechanism through the external threaded internal connector to realize the detachable connection between the pusher unit and the fire needle.

5. The fire needle therapy device according to claim 1, characterized in that: The fire needle includes a fire needle body, a conical head, and a heat-insulating handle. The conical head is fixed to one end of the fire needle body, and the heat-insulating handle is fixed to the other end of the fire needle body.

6. The fire needle therapy device according to claim 1, characterized in that: The threaded locking mechanism includes a locking nut, a clamping sleeve, and an internally threaded external connector. The internally threaded external connector has a second hollow through hole inside and an internal thread on its inner wall. The clamping sleeve is a split bolt with a hollow channel inside. The fire needle passes through the hollow channel inside the clamping sleeve. The locking nut is threaded to the right end of the clamping sleeve so that the locking nut is tightened on the clamping sleeve. One end of the internally threaded external connector is threaded to the left end of the clamping sleeve, and the other end of the internally threaded external connector is screwed tightly to the external thread of the externally threaded internal connector to achieve the connection between the internally threaded external connector and the push needle rod.

7. The fire needle therapy device according to claim 1, characterized in that: The fire needle therapy device includes a laser alignment structure, which is installed at the upper end of the emission protection chamber of the device body.

8. The fire needle therapy device according to claim 7, characterized in that: The laser alignment structure includes two sets of fixed bases and a laser emitter. The two sets of fixed bases are symmetrically fixed at the upper end of the emission protection chamber, and the laser emitter is mounted on the fixed bases.

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