A thread embedding acupuncture device with precise positioning function

Abstract

The present invention discloses a thread embedding acupuncture device with a precise positioning function, comprising a handheld housing and a thread embedding needle assembly that automatically rises and falls along the handheld housing; the thread embedding needle assembly comprises a thread embedding needle tube and a driving assembly 1 that is arranged in cooperation with the thread embedding needle tube; a needle core assembly is arranged in cooperation with the thread embedding needle assembly, and the needle core assembly comprises a needle core and a driving assembly 2 that is arranged in cooperation with the needle core; the needle core assembly drives the needle core to automatically rise and fall along the thread embedding needle tube of the thread embedding needle assembly through the driving assembly 1. The present invention has a reasonable and novel design and a compact structure. The driving assembly can drive the thread embedding needle assembly and the needle core assembly to automatically rise or fall respectively, so that the needle core assembly and the thread embedding needle assembly cooperate to realize thread embedding of acupuncture at a part of a human body to be acupunctured. This setting is simple to operate, can automatically control the depth of the needle in the acupuncture part, and reduces the operator's requirements for acupuncture experience.

Description

Technical Field

[0001] The invention relates to the technical field of acupuncture, and in particular to a thread embedding acupuncture device with a precise positioning function. Background Art

[0002] Embedded thread acupuncture is a kind of thread embedding therapy using medical operation instruments, which is widely used in the treatment of diseases such as internal medicine, gynecology, pain medicine, orthopedics, and ENT. With the improvement of national living standards and quality of life, it is especially suitable for the field of embedded thread beauty and weight loss. Existing embedded thread needles usually include an embedded thread needle tube and a needle core that is matched with it. When working, the medicine thread is placed at the front end of the embedded thread needle tube, and the embedded thread needle tube is inserted into the muscle layer of the human body or between the subcutaneous tissue and the muscle layer, and the medicine thread is placed into the desired acupuncture site of the human body by lifting the needle core to achieve its function.

[0003] With existing thread-embedded acupuncture devices, it is difficult for the user to control the force when inserting the thread-embedded needle tube, which often leads to inaccurate needling depth and requires repeated attempts to locate the needle. This requires high work experience from the operator and is difficult to operate. The "needle sensation" varies from person to person, which is not conducive to the dissemination of technology. In addition, if the thread is not accurately embedded, it will not only affect the efficacy of thread-embedded acupuncture, but may even cause harm to the patient's body and lead to medical accidents.

[0004] Therefore, a thread embedding acupuncture device with a precise positioning function is needed to overcome the occurrence of the above problems. Summary of the invention

[0005] In order to solve the above problems, the embodiment of the present invention provides a thread embedding acupuncture device with precise positioning function. The purpose of the present invention is achieved through the following technical solutions:

[0006] A thread embedding acupuncture device with a precise positioning function, the thread embedding acupuncture device comprising a handheld housing and a thread embedding needle assembly that automatically rises and falls along the handheld housing;

[0007] The thread embedding needle assembly includes a thread embedding needle tube and a driving assembly 1 that is arranged in cooperation with the thread embedding needle tube;

[0008] A needle core assembly is provided in cooperation with the thread embedding needle assembly, and the needle core assembly includes a needle core and a second driving assembly provided in cooperation with the needle core;

[0009] The needle core assembly is driven by a driving assembly to automatically lift the needle core along the suture embedding needle tube of the suture embedding needle assembly.

[0010] Further, the driving assembly 1 and the driving assembly 2 have the same structure;

[0011] The driving assembly 1 includes a worm 1 connected to the upper end of the indwelling needle and a power transmission assembly drivingly connected to the worm 1;

[0012] The second driving assembly comprises a second worm connected to the upper end of the needle core and a power transmission assembly drivingly connected to the second worm.

[0013] Furthermore, the thread embedding needle assembly further comprises a guide sleeve disposed at an upper end of the worm;

[0014] The needle core assembly includes a guide rod arranged between the second worm and the needle core and corresponding to the guide sleeve, and the guide rod can slide up and down along the guide sleeve; a blocking ring is arranged at the upper end of the guide rod corresponding to the guide sleeve.

[0015] Furthermore, a set of guide rails are arranged along the axial direction on the opposite sides of the outer circumference of the guide sleeve;

[0016] A guide support is arranged on the inner plate of the handheld shell corresponding to the guide sleeve, the front end of the guide support is arranged to be an arc structure matching the outer circumference of the guide sleeve, and a guide slot corresponding to the guide rail is arranged at the center of the front end of the guide support.

[0017] Furthermore, the power transmission component includes a placement shell arranged on a plate body on one side of the handheld shell, and a driving motor arranged inside the placement shell. A driving shaft is arranged at the front end of the driving motor, and a worm wheel is arranged on the driving shaft to cooperate with the worm gear; a transmission position hole is arranged at the connection between one side of the placement shell and the worm gear.

[0018] Furthermore, a bearing hole and a bearing arranged in the bearing hole are arranged at the lower end of the inner cavity of the housing, and the front end of the drive shaft is sleeved in the bearing;

[0019] A pair of arc-shaped support blocks are arranged on the inner circumference of the housing shell corresponding to the middle of the drive motor, and a pair of L-shaped connecting blocks are arranged on the inner side of the housing shell corresponding to the end of the drive motor, and one side of the L-shaped connecting block abuts against the circumferential plane of the drive motor.

[0020] Furthermore, a battery holder is provided at the end of the drive motor in the housing shell and is connected to the L-shaped connecting block, and a closed end cover is provided on the outside of the battery holder; the battery holder is electrically connected to the drive motor, and a button battery is provided in the battery holder.

[0021] Furthermore, a control module is provided in conjunction with the power transmission component, and the control module includes a control box body arranged on a handheld shell, and L-shaped card sockets are provided around the inner side of the control box body, and a control circuit board is clamped on the L-shaped card socket, and the control circuit board is electrically connected to the power drive component; the control box body is buckled with a control panel electrically connected to the control circuit board, and the control panel is provided with a liquid display screen and control buttons for respectively controlling the lifting and lowering of the embedding needle assembly and the needle core assembly.

[0022] Furthermore, the handheld shell includes six side surfaces, namely, a top plate and a bottom plate corresponding to the upper and lower sides, a rear end plate and a front end plate corresponding to the front and rear sides, and side panels arranged on the left and right sides; and anti-slip belts are arranged on the side panels.

[0023] Furthermore, the bottom plate is provided with a mounting hole; a needle sleeve corresponding to the thread embedding needle tube is provided under the bottom plate, and a connecting flange is provided at the upper end of the needle sleeve;

[0024] The outer circumference of the needle cannula is provided with a scale along the axial direction, and the upper end of the thread embedding needle tube is provided with a pointer corresponding to the 0 scale of the scale; the handheld housing and the needle cannula are made of transparent material.

[0025] Compared with the prior art, the embodiments of the present invention have at least the following beneficial effects:

[0026] 1. The present invention has a reasonable and novel design and a compact structure. The drive assembly can drive the thread embedding needle assembly and the needle core assembly to automatically move upward or downward, so that the needle core assembly and the thread embedding needle assembly cooperate to achieve acupuncture thread embedding at the acupuncture site of the human body. The thread embedding acupuncture device is easy to operate and can automatically control the needle insertion depth at the acupuncture site, thereby reducing the operator's requirements for acupuncture experience, thereby meeting the needs of ordinary people after certain training;

[0027] 2. The power transmission assembly of the present invention cooperates with the worm gear 1 and the worm gear 2 to drive the thread embedding needle assembly and the needle core assembly to move upward or downward; at the same time, the needle core and the thread embedding needle cooperate to embed the acupuncture thread into the acupuncture site of the human body; the guide sleeve and the guide rod are arranged in the thread embedding needle assembly and the needle core assembly to improve the stability of the needle core moving forward or backward in the thread embedding needle; the blocking ring cooperates with the guide rod to play a positioning role, ensuring that the end of the needle core protrudes 1 to 5 mm relative to the end of the thread embedding needle, thereby ensuring the retention of the acupuncture thread;

[0028] 3. The indwelling needle assembly of the present invention can be stably lifted and lowered vertically along the inner side of the handheld housing, and can stably control the depth of the thread embedding needle into the human skin, so as to achieve positioning of the thread embedding; the worm gear assembly is driven by a driving motor to achieve the lifting and lowering of the needle core assembly and the thread embedding needle assembly, and the positioning of the thread embedding needle stroke is achieved by the advancement or retreat of the worm gear;

[0029] 4. The side panels of the handheld housing of the present invention are bent from the middle to both sides to form an arc shape. The anti-slip belts arranged on the side panels can improve the grip of the thread embedding acupuncture device and prevent it from slipping during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the three-dimensional structure of the thread embedding acupuncture device according to an embodiment of the present invention;

[0031] Figure 2This is a schematic diagram of the first state of the exploded structure of the thread embedding acupuncture device according to an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the second state of the exploded structure of the thread embedding acupuncture device according to an embodiment of the present invention;

[0033] Figure 4 This is a schematic structural diagram of a thread embedding needle assembly according to an embodiment of the present invention;

[0034] Figure 5 This is a schematic diagram of the structure of a needle core assembly according to an embodiment of the present invention;

[0035] Figure 6 This is a schematic diagram of the back side structure of the front end board according to an embodiment of the present invention;

[0036] Figure 7 This is a schematic diagram of the front side structure of the front end plate according to an embodiment of the present invention;

[0037] Figure 8 This is a schematic diagram of the structure of a driving component according to an embodiment of the present invention;

[0038] Fig. 9 The figure is a schematic diagram of the internal structure of the housing according to an embodiment of the present invention.

[0039] In the figure:

[0040] 100. Embedding thread acupuncture device; 1. Hand-held housing; 101. Top plate; 102. Bottom plate; 103. Rear end plate; 104. Front end plate; 105. Side panel; 106. Anti-slip belt; 2. Needle sleeve; 201. Connecting flange; 3. Scale scale; 4. Guide support; 401. Guide slot; 5. Embedding thread needle assembly; 501. Guide sleeve; 502. Worm one; 503. Worm gear; 504. Pointer; 505. Embedding thread needle tube; 506. Guide rail; 6. Needle core assembly; 601. Worm two; 602. Blocking ring; 603. Guide Rod; 604, needle core; 7, drive component one; 8, drive component two; 9, control module; 901, control box body; 902, control panel; 903, control circuit board; 904, L-shaped card seat; 10, power transmission component; 1001, placement shell; 1002, transmission position hole; 1003, closed end cover; 1004, battery holder; 1005, drive motor; 1006, worm gear; 1007, drive shaft; 1008, bearing; 1009, bearing position hole; 1010, L-shaped connecting block; 1011, arc support block. DETAILED DESCRIPTION

[0041] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0042] See also Figures 1 to 9 The present invention discloses a thread embedding acupuncture device with precise positioning function, wherein the thread embedding acupuncture device 100 comprises a handheld housing 1 and a thread embedding needle assembly 5 which is automatically lifted and lowered along the handheld housing; the thread embedding needle assembly 5 comprises a thread embedding needle tube 505 and a driving assembly 7 which is arranged in cooperation with the thread embedding needle tube; a needle core assembly 6 is arranged in cooperation with the thread embedding needle assembly 5, and the needle core assembly 6 comprises a needle core 604 and a driving assembly 8 which is arranged in cooperation with the needle core; the needle core assembly 6 drives the needle core to automatically lift and lower along the thread embedding needle tube 505 of the thread embedding needle assembly through the driving assembly 1. The present invention has reasonable and novel design and compact structure. The thread embedding needle assembly and the needle core assembly can be driven to automatically move upward or downward by the driving assembly, so that the needle core assembly and the thread embedding needle assembly can cooperate to realize thread embedding of acupuncture at the acupuncture site of the human body. The thread embedding acupuncture device with such arrangement is simple to operate, and can automatically control the needle insertion depth control at the acupuncture site, thereby reducing the operator's requirements for acupuncture experience, thereby satisfying the use of ordinary people after certain training.

[0043] In a specific embodiment, referring to Figures 2 to 4 , the drive assembly 1 7 has the same structure as the drive assembly 2 8; the drive assembly 1 7 includes a worm 502 connected to the upper end of the indwelling needle, a power transmission assembly 10 connected to the worm 1, the worm 1 body is a hollow structure, and a worm tooth 503 is provided on the outer circumference of the worm 1 body in a spiral shape along the axial direction; the drive assembly 2 8 includes a worm 2 601 connected to the upper end of the needle core, and a power transmission assembly 10 connected to the worm 2. In this embodiment, the power transmission assembly cooperates with the worm 1 and the worm 2 to drive the thread embedding needle assembly and the needle core assembly upward or downward; at the same time, the needle core and the thread embedding needle cooperate to bury the acupuncture thread in the part of the human body to be acupunctured. It can be understood that the above description is only exemplary, and the embodiments of the present application are not limited to this.

[0044] In an alternative embodiment, referring to Figure 4 , the thread embedding needle assembly 5 also includes a guide sleeve 501 provided at the upper end of the worm one; the needle core assembly 6 includes a guide rod 603 provided between the worm two and the needle core and corresponding to the guide sleeve, and the guide rod can slide up and down along the guide sleeve; a blocking ring 602 is provided at the upper end of the guide rod and corresponding to the guide sleeve. In this embodiment, the guide sleeve and the guide rod are provided in the thread embedding needle assembly and the needle core assembly to improve the stability of the needle core in the thread embedding needle when moving forward or backward; the blocking ring cooperates with the guide rod to play a positioning role, ensuring that the end of the needle core protrudes 1 to 5 mm relative to the end of the thread embedding needle, thereby ensuring the retention of the acupuncture thread. It can be understood that the above description is only exemplary, and the embodiments of the present application do not limit this.

[0045] In an alternative embodiment, referring to Figure 3 and Figure 4, a group of guide rails 506 are arranged axially on the opposite side of the outer circumference of the guide sleeve 501; a guide support 4 is arranged on the inner plate of the handheld shell 1 corresponding to the guide sleeve, and the front end of the guide support 4 is arranged to be an arc structure matching the outer circumference of the guide sleeve, and a guide slot 401 corresponding to the guide rail is arranged in the center of the front end of the guide support 4. In this embodiment, the indwelling needle assembly of this structure can be stably raised and lowered vertically along the inner side of the handheld shell, and the depth of the thread embedding needle entering the human skin can be stably controlled to achieve positioning thread embedding. It can be understood that the above description is only exemplary, and the embodiments of the present application are not limited to this.

[0046] In a specific embodiment, referring to Figures 6 to 9 , the power transmission assembly 10 includes a placement shell 1001 arranged on a plate on one side of the handheld shell 1, and a driving motor 1005 arranged inside the placement shell 1001. A driving shaft 1007 is arranged at the front end of the driving motor 1005, and a worm wheel 1006 is arranged on the driving shaft to cooperate with the worm; a transmission position hole 1002 is correspondingly arranged at the connection between one side of the placement shell 1001 and the worm wheel. In this embodiment, the needle core assembly and the thread embedding needle assembly are lifted and lowered by driving the worm wheel assembly through the driving motor, and the thread embedding needle stroke is positioned by the forward or backward movement of the worm. It can be understood that the above description is only exemplary, and the embodiments of the present application do not limit this.

[0047] In a specific embodiment, the lower end of the inner cavity of the placement shell 1001 is provided with a bearing hole 1009 and a bearing 1008 arranged in the bearing hole, and the front end of the drive shaft is sleeved in the bearing; this arrangement can improve the installation stability of the drive motor. A pair of arc-shaped support blocks 1011 are arranged on the inner circumference of the placement shell 1001 corresponding to the middle of the drive motor, and a pair of L-shaped connecting blocks 1010 are arranged on the inner side of the placement shell 1001 corresponding to the end of the drive motor, and one side of the L-shaped connecting block abuts on the circumferential plane of the drive motor. It can be understood that the above description is only exemplary and the embodiment of the present application does not limit this.

[0048] In an optional embodiment, a battery holder 1004 is connected to the L-shaped connecting block at the end of the drive motor in the housing 1001, and a closed end cover 1003 is arranged outside the battery holder; the battery holder is electrically connected to the drive motor, and a button battery is arranged in the battery holder. In this embodiment, the button battery can provide a power source for the drive motor. It can be understood that the above description is only exemplary and the embodiment of the present application does not limit this.

[0049] In a specific embodiment, referring to Figure 7, a control module 9 is provided in cooperation with the power transmission component 10, and the control module 9 includes a control box body 901 provided on the handheld housing 1, and an L-shaped card seat 904 is provided around the inner side of the control box body 901, and a control circuit board 903 is clamped on the L-shaped card seat 904, and the control circuit board 903 is electrically connected to the power drive component; the control box body 901 is buckled with a control panel 902 electrically connected to the control circuit board, and the control panel 902 is provided with a liquid display screen and control buttons for controlling the lifting and lowering of the needle embedding component and the needle core component respectively; the control module is used to control the forward rotation or flipping of the drive motor, so as to control the lifting and lowering operation of the needle embedding component and the needle core component, and realize their functions. It can be understood that the above description is only exemplary, and the embodiments of the present application do not limit this.

[0050] In an optional embodiment, the handheld housing 1 includes six sides, namely, a top plate 101 and a bottom plate 102 corresponding to the upper and lower sides, a rear end plate 103 and a front end plate 104 corresponding to the front and rear sides, and side panels 105 arranged on the left and right sides; the side panels 105 are provided with anti-slip strips 106; in this embodiment, the side panels are bent from the middle to the sides to form an arc, and the anti-slip strips arranged on the side panels can improve the grip of the thread embedding acupuncture device and prevent sliding during use. It can be understood that the above description is only exemplary and the embodiments of the present application are not limited to this.

[0051] In an optional embodiment, the base plate 102 is provided with a mounting hole; a needle cannula 2 corresponding to the buried thread needle tube is provided below the base plate 102, and a connecting flange 201 is provided at the upper end of the needle cannula; a scale ruler 3 is provided along the axial direction on the outer circumference of the needle cannula, and a pointer 504 corresponding to the scale 0 of the scale ruler is provided at the upper end of the buried thread needle tube 505; the handheld housing 1 and the needle cannula 2 are made of transparent material. In this embodiment, the needle cannula can provide protection for the buried thread needle tube to prevent the buried thread needle tube from stabbing the patient or staff when it is not in working state; in addition, by cooperating with the needle cannula and the scale ruler, the depth of the buried thread needle tube entering the human skin can be conveniently determined. It can be understood that the above description is only exemplary, and the embodiments of the present application are not limited to this.

[0052] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0053] In addition, each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device and system embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiments. The components indicated as units may or may not be physical units, and may be located in one place, or may not be distributed on multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without creative work.

[0054] The above is only a specific implementation method of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A thread embedding acupuncture device with precise positioning function, characterized in that: The thread embedding acupuncture device (100) comprises a handheld housing (1) and a thread embedding needle assembly (5) that automatically rises and falls along the handheld housing (1); The thread embedding needle assembly (5) comprises a thread embedding needle tube (505) and a driving assembly 1 (7) arranged in cooperation with the thread embedding needle tube (505); A needle core assembly (6) is provided in cooperation with the thread embedding needle assembly (5), wherein the needle core assembly (6) comprises a needle core (604) and a second driving assembly (8) provided in cooperation with the needle core (604); The needle core assembly (6) drives the needle core (604) to automatically rise and fall along the suture embedding needle tube (505) of the suture embedding needle assembly (5) via the second driving assembly (8); The driving component 1 (7) and the driving component 2 (8) have the same structure; The driving assembly 1 (7) comprises a worm gear 1 (502) connected to the upper end of the thread embedding needle tube (505), and a power transmission assembly (10) drivingly connected to the worm gear 1 (502); The second driving assembly (8) comprises a second worm gear (601) connected to the upper end of the needle core (604), and a power transmission assembly (10) drivingly connected to the second worm gear (601); The thread embedding needle assembly (5) further comprises a guide sleeve (501) disposed at the upper end of the worm gear (502); The needle core assembly (6) comprises a guide rod (603) arranged between the second worm (601) and the needle core (604) and corresponding to the guide sleeve (501), wherein the guide rod (603) can slide up and down along the guide sleeve (501); a blocking ring (602) is arranged at the upper end of the guide rod (603) and corresponds to the guide sleeve (501); The power transmission assembly (10) comprises a placement housing (1001) arranged on a plate body on one side of the handheld housing (1), and a drive motor (1005) arranged inside the placement housing (1001); a drive shaft (1007) is arranged at the front end of the drive motor (1005); a worm wheel (1006) is arranged on the drive shaft (1007) in cooperation with the worm; and a transmission position hole (1002) is arranged at a connection between one side of the placement housing (1001) and the worm wheel and the worm.

2. The thread embedding acupuncture device with precise positioning function according to claim 1, characterized in that: A group of guide rails (506) are arranged on the outer circumference of the guide sleeve (501) along the axial direction, and the group of guide rails (506) are arranged opposite to each other on the outer circumference of the guide sleeve (501); A guide support (4) is arranged on the inner plate of the handheld housing (1) corresponding to the guide sleeve (501); the front end of the guide support (4) is arranged to be an arc-shaped structure matching the outer circumference of the guide sleeve (501); and a guide slot (401) corresponding to the guide rail (506) is arranged at the center of the front end of the guide support (4).

3. The thread embedding acupuncture device with precise positioning function according to claim 1, characterized in that: The lower end of the inner cavity of the placement shell (1001) is provided with a bearing hole (1009) and a bearing (1008) arranged in the bearing hole (1009), and the front end of the drive shaft (1007) is sleeved in the bearing (1008); A pair of arc-shaped support blocks (1011) are arranged on the inner circumference of the placement shell (1001) corresponding to the middle of the drive motor (1005), and a pair of L-shaped connection blocks (1010) are arranged on the inner side of the placement shell (1001) corresponding to the ends of the drive motor (1005), and one side of the L-shaped connection block (1010) abuts against the circumferential plane of the drive motor (1005).

4. The thread embedding acupuncture device with precise positioning function according to claim 3, characterized in that: A battery holder (1004) is provided in the housing (1001) at the end of the driving motor (1005) and connected to the L-shaped connecting block (1010), and a closed end cover (1003) is provided outside the battery holder (1004); the battery holder (1004) is electrically connected to the driving motor (1005), and a button battery is provided in the battery holder (1004).

5. The thread embedding acupuncture device with precise positioning function according to claim 4, characterized in that: A control module (9) is provided in cooperation with the power transmission component (10), the control module (9) comprising a control box body (901) provided on the handheld housing (1), an L-shaped card seat (904) provided around the inner side of the control box body (901), a control circuit board (903) being card-connected to the L-shaped card seat (904), the control circuit board (903) being electrically connected to the power transmission component (10); a control panel (902) electrically connected to the control circuit board (903) being provided on the control box body (901), the control panel (902) being provided with a liquid display screen and control buttons for respectively controlling the lifting and lowering of the thread embedding needle component (5) and the needle core component (6).

6. A thread embedding acupuncture device with precise positioning function according to any one of claims 1 to 5, characterized in that: The handheld housing (1) comprises six side surfaces, namely a top plate (101) and a bottom plate (102) corresponding to the upper and lower sides, a rear end plate (103) and a front end plate (104) corresponding to the front and rear sides, and side panels (105) arranged on the left and right sides; the side panels (105) are provided with anti-slip strips (106).

7. The thread embedding acupuncture device with precise positioning function according to claim 6, characterized in that: The bottom plate (102) is provided with a mounting hole; a needle cannula (2) corresponding to the thread embedding needle tube (505) is provided below the bottom plate (102), and a connecting flange (201) is provided at the upper end of the needle cannula (2); The outer circumference of the needle cannula (2) is provided with a scale (3) along the axial direction, and the upper end of the thread embedding needle tube (505) is provided with a pointer (504) corresponding to the 0 scale of the scale (3); the handheld housing (1) and the needle cannula (2) are made of transparent material.

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