Self-destructing syringe for treatment of precocious puberty in children

Abstract

The application discloses a self-destroying syringe for treating children's precocious puberty, relates to the field of treating children's precocious puberty and comprises a plunger barrel, a plunger rod arranged in the plunger barrel, an injection needle arranged at the bottom of the plunger barrel and a self-destroying trigger device sleeved outside the plunger barrel, wherein the plunger barrel comprises two semicircular plunger barrels connected with a cylindrical body at one side outer wall, and the two semicircular plunger barrels are clamped with the injection needle in a folded state; the self-destroying trigger device comprises a split power component arranged at the side of the semicircular plunger barrel away from the cylindrical body, a U-shaped frame sleeved outside the semicircular plunger barrel, a split limiting component arranged at the side of the U-shaped frame close to the split power component and a one-way moving component; the bottom of the U-shaped frame is provided with a needle retraction power component, the outer wall of the U-shaped frame is slidably connected with a moving plate, and the outer wall of the moving plate is connected with the cylindrical body. The syringe integrates a reliable one-time self-destroying mechanism on the basis of the conventional injection function and can effectively avoid repeated use.

Description

Technical Field

[0001] This invention relates to the technical field of treating precocious puberty in children, specifically a self-destructing syringe for treating precocious puberty in children. Background Technology

[0002] Precocious puberty is a common endocrine disorder in children, requiring long-term, regular injections of drugs such as GnRH analogs for intervention and treatment. This type of treatment typically requires the child's family to perform the injections themselves, placing extremely high demands on the safety, convenience, and reliability of the syringes. Medical safety regulations emphasize that syringes must be for single use to eliminate the risk of cross-infection and disease transmission. Therefore, developing a dedicated injection device that effectively prevents reuse and improves medication safety has become an important need in the field of precocious puberty treatment.

[0003] Currently, while ordinary syringes on the market are simple in structure and inexpensive, they lack anti-reuse mechanisms, posing a risk of improper cleaning and reuse. Although some self-destructing syringes have related designs, such as self-destruction through breaking the plunger or locking mechanisms, certain limitations remain. Some products have complex self-destruct mechanisms, making operation inconvenient and potentially affecting normal injection function; some self-destruct incompletely, allowing critical components such as the needle to still be removed and reused; and some designs do not consider the handling of residual medication, potentially posing biosafety risks. Furthermore, most existing products lack human-centered design for the psychological and operational characteristics of children undergoing long-term treatment, such as a lack of clear operational distinctions, easily leading to accidental triggering or user confusion.

[0004] Therefore, there is an urgent need for a new type of self-destructing syringe that can not only ensure irreversible and complete structural destruction after single use, but also has the characteristics of intuitive operation and prevention of accidental triggering. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a self-destructing syringe for the treatment of precocious puberty in children, so as to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a self-destructing syringe for treating precocious puberty in children, comprising a plunger body, a plunger rod disposed within the plunger body, an injection needle disposed at the bottom of the plunger body, and a self-destruct triggering device sleeved outside the plunger body. The plunger body includes two semi-circular plunger tubes connected to a cylinder on one side of its outer wall, and the two semi-circular plunger tubes engage the injection needle when closed. The self-destruct triggering device includes a separate power component disposed on the side of the semi-circular plunger tube away from the cylinder, a U-shaped frame sleeved outside the semi-circular plunger tube, a separate limiting component disposed on the side of the U-shaped frame close to the separate power component, and a one-way moving component. A needle retraction power component is provided at the bottom of the U-shaped frame, and a moving plate is slidably connected to the outer wall of the U-shaped frame, the outer wall of the moving plate being connected to the cylinder.

[0007] According to one embodiment of the present invention, the split power component includes a plurality of split plates symmetrically disposed on the outer walls of the two semi-circular plunger cylinders and arranged in a linear array, an extension cylinder disposed on the outer wall of the split plates and communicating with the split plates, and a first spring disposed between two corresponding extension cylinders. In this preferred embodiment, the split power component enables automatic separation of the two semi-circular plunger cylinders.

[0008] According to one embodiment of the present invention, the split-type limiting component includes a plurality of limiters sequentially disposed from top to bottom on the outer wall of the U-shaped frame, each limiter including two limiting plates symmetrically disposed on the outer wall of the U-shaped frame. In this preferred embodiment, the split-type limiting component achieves limiting and fixing of the two semi-circular plunger cylinders before separation.

[0009] According to one embodiment of the present invention, the unidirectional moving component includes a first ratchet wall disposed on the outer wall of the split plate and an arc-shaped ratchet wall disposed on the outer wall of the U-shaped frame. In this preferred embodiment, the unidirectional moving component can define the relative movement direction between the plunger cylinder and the U-shaped frame.

[0010] According to one embodiment of the present invention, the injection needle includes a retaining tube, a needle tip inserted into and communicating with the bottom of the retaining tube, and two retaining rings sleeved on the outer wall of the retaining tube; the outer wall of the semi-circular plunger cylinder abuts against the outer wall of the retaining tube, and the abutment position is located between the two retaining rings. In this preferred embodiment, the retaining structure between the injection needle and the semi-circular plunger cylinder facilitates the retraction of the injection needle after the two semi-circular plunger cylinders are separated.

[0011] According to one embodiment of the present invention, the needle retraction power component includes a through hole passing through the bottom of the U-shaped frame and through which the injection needle passes, and a second spring having one end connected to the inner wall of the through hole and the other end abutting against the outer wall of the bottommost retaining tube. In this preferred embodiment, the needle retraction power component facilitates the retraction of the needle.

[0012] According to one embodiment of the present invention, two first lugs are symmetrically provided on the top of the outer wall of the plunger cylinder, and two second lugs are symmetrically provided on the outer wall of the U-shaped frame, with the second lugs located below the first lugs. In this preferred embodiment, the first lugs facilitate the user to push the plunger rod for injection, and the second lugs facilitate the user to push the plunger cylinder for syringe self-destruction. The misalignment of the first and second lugs prevents incorrect use by the user.

[0013] According to one embodiment of the present invention, the plunger rod includes two symmetrically arranged semi-circular plunger plates, a push rod disposed at the top of the semi-circular plunger plates, a rubber plunger disposed at the bottom of the semi-circular plunger plates, a third spring disposed between the two semi-circular plunger plates, and a disinfection and liquid retention component disposed between the two semi-circular plunger plates; the semi-circular plunger plates are slidably connected to the inner wall of the semi-circular plunger cylinder, and the third spring is located on the side of the semi-circular plunger plate closer to the split power component. In this preferred embodiment, the split plunger rod structure can achieve more thorough self-destruction.

[0014] According to one embodiment of the present invention, the disinfection and liquid storage component includes a storage cavity embedded in the semi-circular plunger plate and an adhesive plate disposed on the inner wall of the storage cavity; the storage cavity is used to store the disinfection liquid sac, and the adhesive plate is used to adhere to the outer wall of the disinfection liquid sac; when the two semi-circular plunger plates separate and open, the disinfection liquid sac, whose outer wall is adhered to the adhesive plate, is torn open. In this preferred embodiment, the disinfection and liquid storage component facilitates disinfection of the interior of the plunger cylinder after self-destruction.

[0015] According to one embodiment of the present invention, a liquid-absorbing component is further provided at the bottom of the U-shaped frame. The liquid-absorbing component includes a first sponge pad embedded at the top of the U-shaped frame, a second sponge pad provided at the bottom of the U-shaped frame, and a plurality of third sponge pads connected at one end to the first sponge pad and at the other end to the second sponge pad; the needle head penetrates through the second sponge pad. In this preferred embodiment, the liquid-absorbing component facilitates the absorption of liquid leaking from the plunger cylinder after self-destruction.

[0016] In summary, the present invention has the following main beneficial effects:

[0017] The present invention provides a self-destructing syringe for the treatment of precocious puberty in children. The syringe integrates a reliable disposable self-destruction mechanism on the basis of conventional injection function, which can effectively avoid the risk of cross-infection and drug abuse caused by repeated use. It is especially suitable for the treatment of precocious puberty in children that requires long-term and regular administration.

[0018] The core design of this syringe lies in its unique split structure and integrated self-destruct triggering device. The plunger body is composed of two semi-circular cylinders, and the plunger rod is also composed of two semi-circular plunger plates, supplemented by springs, ratchet teeth, limiters, and other components, which together form a system that can automatically perform an irreversible self-destruct action under specific triggering conditions;

[0019] By hooking the second lug on the self-destruct device with your index and middle fingers and pushing the plunger rod to its limit with your thumb, you can trigger three key self-destruct actions in sequence:

[0020] Cylinder separation: The separation limiting component releases the constraint on the separation power component, and driven by the first spring, the two semi-circular plunger cylinders separate to both sides, disrupting the overall structure of the syringe.

[0021] Needle retraction: After the barrel separates, the constraint on the needle retaining ring disappears, and the needle retraction power unit immediately pulls the needle back into the separated barrel, effectively avoiding the risk of needle puncture.

[0022] The plunger body is separated from the syringe, and internal disinfection is performed: After the syringe body separates, a third spring inside the plunger rod pushes the two semi-circular plunger plates apart, simultaneously tearing the disinfectant sac in the storage chamber and releasing the disinfectant to chemically inactivate any remaining medication, further ensuring safety. This series of coordinated operations destroys both the syringe's physical structure and its chemical contents, rendering it completely unusable.

[0023] The operation is clearly differentiated to prevent accidental triggering: the design cleverly incorporates a first and second loop. During routine injection, the finger is placed on the first loop, which will not trigger self-destruction. Only when self-destruction is required should the finger be moved to the second loop and pushed down firmly. This distinction in operation mode effectively prevents accidental activation of the self-destruction procedure due to improper operation during normal injection. Attached Figure Description

[0024] Figure 1 This is an isometric view of the overall structure of the syringe of the present invention;

[0025] Figure 2 This is an exploded view of the overall structure of the syringe of the present invention;

[0026] Figure 3 This is an isometric view of the injection needle structure of the present invention;

[0027] Figure 4This is an exploded view of the self-destruct triggering device of the present invention;

[0028] Figure 5 This is an exploded view of the plunger rod structure of the present invention;

[0029] Figure 6 This is a cross-sectional view of the overall structure of the syringe of the present invention;

[0030] Figure 7 This is an enlarged view of the structure at point A of the present invention;

[0031] Figure 8 This is an enlarged view of the structure at point B of the present invention.

[0032] Figure Descriptions: 10. Plunger cylinder; 101. Cylinder; 102. Semi-circular plunger cylinder; 11. Plunger rod; 111. Semi-circular plunger plate; 112. Push rod; 113. Rubber plunger; 114. Third spring; 115. Disinfection and liquid storage component; 1151. Storage cavity; 1152. Adhesive plate; 12. First lug; 13. Injection needle; 131. Connecting tube; 132. Needle tip; 133. Connecting ring; 20. Self-destruct trigger device; 21. Split power component; 211. 212. Split plate; 213. Extension tube; 214. First spring; 22. U-shaped frame; 221. Second hanging ear; 23. Split limiting component; 231. Limiter; 2311. Limiting plate; 24. One-way moving component; 241. First ratchet wall; 242. Arc-shaped ratchet wall; 25. Needle retraction power component; 251. Through hole; 252. Second spring; 26. Moving plate; 27. Liquid suction component; 271. First sponge pad; 272. Second sponge pad; 273. Third sponge pad. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0034] The embodiments of the present invention will now be described.

[0035] Please refer to the appendix for details. Figure 1 , 2As shown in Figures 3 and 6, in a preferred embodiment of the present invention, a self-destructing syringe for treating precocious puberty in children includes a plunger body 10, a plunger rod 11 disposed within the plunger body 10, an injection needle 13 disposed at the bottom of the plunger body 10, and a self-destruct triggering device 20 sleeved outside the plunger body 10. The plunger body 10 includes two semi-circular plunger cylinders 102 connected to a cylinder 101 on one side of its outer wall. The two semi-circular plunger cylinders 102 engage the injection needle 13 when closed. 3 includes a retaining tube 131, a needle head 132 inserted into the bottom of the retaining tube 131 and communicating with the retaining tube 131, and two retaining rings 133 sleeved on the outer wall of the retaining tube 131; the outer wall of the semi-circular plunger cylinder 102 abuts against the outer wall of the retaining tube 131 and the abutment position is located between the two retaining rings 133; the top of the outer wall of the plunger cylinder 10 is symmetrically provided with two first lugs 12; the outer wall of the U-shaped frame 22 is symmetrically provided with two second lugs 221; the second lugs 221 are located below the first lugs 12.

[0036] It should be noted that, in this embodiment, when treating precocious puberty in children, a syringe can be used to draw the drug. When drawing the drug, the plunger rod 11 is pulled by hand, and the drug solution can enter the plunger cylinder 10 through the injection needle 13.

[0037] During injection, insert the needle tip 132 into the injection site on the child's body, place the index and middle fingers on the first loop 12, and press the plunger rod 11 with the thumb to inject the drug. After the injection is completed, withdraw the needle.

[0038] After injection, the syringe can be self-destructed to prevent reuse. When self-destructing, place the index and middle fingers on the second loop 221 and press the plunger rod 11 with the thumb until the bottom of the plunger body 10 is close to the U-shaped frame 22 and reaches the limit position. At this time, the plunger body 10, the plunger rod 11, and the injection needle 13 retract to achieve complete self-destruction.

[0039] Furthermore, a rubber layer can be provided at the contact points of the two semi-circular plunger cylinders 102 to increase the sealing performance, and a rubber layer can be provided at the contact points of the two semi-circular plunger plates 111 to increase the sealing performance.

[0040] Furthermore, a ratchet wall structure similar to that of the unidirectional moving component 24 can be provided at the sliding connection between the moving plate 26 and the U-shaped frame 22 to limit the relative movement direction between the moving plate 26 and the U-shaped frame 22, thereby increasing the stability between the U-shaped frame 22 and the plunger cylinder 10.

[0041] Please refer to the appendix for details. Figure 2 , 3As shown in Figures 4, 7, and 8, in another preferred embodiment of the present invention, the self-destruct triggering device 20 includes a split power component 21 disposed on the side of the semi-circular plunger cylinder 102 away from the cylinder 101, a U-shaped frame 22 sleeved on the outside of the semi-circular plunger cylinder 102, a split limiting component 23 disposed on the side of the U-shaped frame 22 near the split power component 21, and a one-way moving component 24; a needle retraction power component 25 is provided at the bottom of the U-shaped frame 22, and a moving plate 26 is slidably connected to the outer wall of the U-shaped frame 22, the outer wall of the moving plate 26 being connected to the cylinder 101; the split power component 21 includes a plurality of split plates 211 symmetrically disposed on the outer walls of the two semi-circular plunger cylinders 102 and arranged in a linear array, and a unidirectional moving component 24 disposed on the outer wall of the split plates 211 and connected to the cylinder 101. The split plate 211 connects to the extension cylinder 212, and the first spring 213 is located between two corresponding extension cylinders 212. The split limiting component 23 includes multiple limiters 231 arranged sequentially from top to bottom on the outer wall of the U-shaped frame 22. The limiter 231 includes two limiting plates 2311 symmetrically arranged on the outer wall of the U-shaped frame 22. The unidirectional moving component 24 includes a first ratchet wall 241 arranged on the outer wall of the split plate 211 and an arc-shaped ratchet wall 242 arranged on the outer wall of the U-shaped frame 22. The needle retraction power component 25 includes a through hole 251 that passes through the bottom of the U-shaped frame 22 and allows the injection needle 13 to pass through, and a second spring 252 that connects one end to the inner wall of the through hole 251 and the other end to the outer wall of the bottommost retaining tube 131.

[0042] It should be noted that, in this embodiment, when the self-destruct trigger device 20 is working, the one-way moving component 24 can limit the moving direction of the plunger cylinder 10. When the bottom of the plunger cylinder 10 approaches the U-shaped frame 22 and reaches the limit position, the split limiting component 23 will be unable to limit the split power component 21, and the split power component 21 will push the two semi-circular plunger cylinders 102 to separate from each other.

[0043] After the two semi-circular plunger cylinders 102 separate, the retaining ring 133 of the injection needle 13 is no longer retained by the semi-circular plunger cylinders 102, and the second spring 252 pushes the injection needle 13 into the two separated semi-circular plunger cylinders 102.

[0044] Furthermore, when the unidirectional moving component 24 is working, the first ratchet wall 241 moves unidirectionally on the arc-shaped ratchet wall 242. When the two semi-circular plunger cylinders 102 separate, the first ratchet wall 241 slides along the arc-shaped ratchet wall 242. After the two semi-circular plunger cylinders 102 are separated, the arc-shaped ratchet wall 242 can still limit the first ratchet wall 241 in the direction of movement.

[0045] Furthermore, when the split limiting component 23 is working, the limiting plate 2311 limits and fixes the split plate 211;

[0046] Furthermore, when the split power component 21 is working, the first spring 213 pushes the two abutting split plates 211 to separate, so that the two semi-circular plunger cylinders 102 separate.

[0047] Please refer to the appendix for details. Figure 4 , 5 As shown, in another preferred embodiment of the present invention, the plunger rod 11 includes two symmetrically arranged semi-circular plunger plates 111, a push rod 112 disposed at the top of the semi-circular plunger plates 111, a rubber plunger 113 disposed at the bottom of the semi-circular plunger plates 111, a third spring 114 disposed between the two semi-circular plunger plates 111, and a disinfection and liquid storage component 115 disposed between the two semi-circular plunger plates 111; the semi-circular plunger plates 111 are slidably connected to the inner wall of the semi-circular plunger cylinder 102, the third spring 114 is located on the side of the semi-circular plunger plate 111 near the split power component 21, and the disinfection and liquid storage component 115 includes a storage cavity 1151 embedded in the semi-circular plunger plate 111. The storage cavity 1151 includes an adhesive plate 1152 on the inner wall of the storage cavity 1151. The storage cavity 1151 is used to store the disinfectant bladder, and the adhesive plate 1152 is used to bond the outer wall of the disinfectant bladder. When the two semi-circular plunger plates 111 separate and open, the disinfectant bladder bonded to the outer wall of the adhesive plate 1152 is torn open. The storage cavity 1151 also includes a liquid-absorbing component 27 at the bottom of the U-shaped frame 22. The liquid-absorbing component 27 includes a first sponge pad 271 embedded at the top of the U-shaped frame 22, a second sponge pad 272 at the bottom of the U-shaped frame 22, and a plurality of third sponge pads 273 connected at one end to the first sponge pad 271 and at the other end to the second sponge pad 272. The needle head 132 penetrates the second sponge pad 272.

[0048] It should be noted that in this embodiment, after the two semi-circular plunger cylinders 102 are separated, the third spring 114 pushes the two semi-circular plunger plates 111 to separate, and the disinfectant bladder located in the storage cavity 1151 and whose outer wall is bonded to the adhesive plate 1152 is torn open, and the disinfectant disinfects the inside of the plunger cylinder 10.

[0049] The working principle of this invention is as follows:

[0050] When treating precocious puberty in children, a syringe can be used to draw the medication. When drawing the medication, the plunger rod 11 is pulled by hand, and the liquid medication can enter the plunger cylinder 10 through the injection needle 13.

[0051] During injection, insert the needle tip 132 into the injection site on the child's body, place the index and middle fingers on the first loop 12, and press the plunger rod 11 with the thumb to inject the drug. After the injection is completed, withdraw the needle.

[0052] After injection, the syringe can be self-destructed to prevent reuse. When self-destructing, place the index and middle fingers on the second loop 221 and press the plunger rod 11 with the thumb until the bottom of the plunger body 10 is close to the U-shaped frame 22 and reaches the limit position. At this time, the plunger body 10, the plunger rod 11, and the injection needle 13 retract to achieve complete self-destruction.

[0053] A rubber layer may be provided at the contact area between the two semi-circular plunger cylinders 102 to increase the sealing performance; a rubber layer may be provided at the contact area between the two semi-circular plunger plates 111 to increase the sealing performance.

[0054] The sliding connection between the movable plate 26 and the U-shaped frame 22 can also be provided with a ratchet wall structure similar to that of the unidirectional moving component 24, so as to limit the relative movement direction between the movable plate 26 and the U-shaped frame 22 and increase the stability between the U-shaped frame 22 and the plunger cylinder 10.

[0055] When the self-destruct trigger device 20 is working, the one-way moving component 24 can limit the moving direction of the plunger cylinder 10. When the bottom of the plunger cylinder 10 approaches the U-shaped frame 22 and reaches the limit position, the split limiting component 23 will be unable to limit the split power component 21, and the split power component 21 will push the two semi-circular plunger cylinders 102 to separate from each other.

[0056] After the two semi-circular plunger cylinders 102 separate, the retaining ring 133 of the injection needle 13 is no longer retained by the semi-circular plunger cylinders 102, and the second spring 252 pushes the injection needle 13 into the two separated semi-circular plunger cylinders 102.

[0057] When the unidirectional moving part 24 is working, the first ratchet wall 241 moves unidirectionally on the arc-shaped ratchet wall 242. When the two semi-circular plunger cylinders 102 separate, the first ratchet wall 241 slides along the arc-shaped ratchet wall 242. After the two semi-circular plunger cylinders 102 are separated, the arc-shaped ratchet wall 242 can still limit the first ratchet wall 241 in the direction of movement.

[0058] When the split limiting component 23 is working, the limiting plate 2311 limits and fixes the split plate 211;

[0059] When the split power component 21 is working, the first spring 213 pushes the two abutting split plates 211 to separate, so that the two semi-circular plunger cylinders 102 separate.

[0060] After the two semi-circular plunger cylinders 102 separate, the third spring 114 pushes the two semi-circular plunger plates 111 to separate, and the disinfectant bladder located in the storage cavity 1151 and whose outer wall is bonded to the adhesive plate 1152 is torn open, and the disinfectant disinfects the inside of the plunger cylinder 10.

[0061] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A self-destructing syringe for treating precocious puberty in children, comprising a plunger body (10), a plunger rod (11) disposed within the plunger body (10), an injection needle (13) disposed at the bottom of the plunger body (10), and a self-destruct triggering device (20) sleeved outside the plunger body (10), characterized in that, The plunger body (10) includes two semi-circular plunger cylinders (102) connected to a cylinder (101) on one side of its outer wall. The two semi-circular plunger cylinders (102) are engaged with the injection needle (13) when they are closed. The self-destruct trigger device (20) includes a split power component (21) disposed on the side of the semi-circular plunger cylinder (102) away from the cylinder (101), a U-shaped frame (22) sleeved on the outside of the semi-circular plunger cylinder (102), a split limiting component (23) disposed on the side of the U-shaped frame (22) close to the split power component (21), and a one-way moving component (24). The bottom of the U-shaped frame (22) is provided with a needle retraction power component (25), and the outer wall of the U-shaped frame (22) is slidably connected to a moving plate (26), and the outer wall of the moving plate (26) is connected to the cylinder (101).

2. The self-destructing syringe for treating precocious puberty in children according to claim 1, characterized in that, The split power component (21) includes a plurality of split plates (211) symmetrically arranged on the outer walls of the two semi-circular plunger cylinders (102) and arranged in a linear array, an extension cylinder (212) arranged on the outer wall of the split plate (211) and communicating with the split plate (211), and a first spring (213) arranged between the two extension cylinders (212) at corresponding positions.

3. The self-destructing syringe for treating precocious puberty in children according to claim 1, characterized in that, The split limiting component (23) includes a plurality of limiters (231) arranged sequentially from top to bottom on the outer wall of the U-shaped frame (22), and the limiters (231) include two limiting plates (2311) symmetrically arranged on the outer wall of the U-shaped frame (22).

4. The self-destructing syringe for treating precocious puberty in children according to claim 2, characterized in that, The unidirectional moving component (24) includes a first ratchet wall (241) disposed on the outer wall of the split plate (211) and an arc-shaped ratchet wall (242) disposed on the outer wall of the U-shaped frame (22).

5. A self-destructing syringe for treating precocious puberty in children according to claim 1, characterized in that, The injection needle (13) includes a retaining tube (131), a needle head (132) inserted into the bottom of the retaining tube (131) and communicating with the retaining tube (131), and two retaining rings (133) sleeved on the outer wall of the retaining tube (131). The outer wall of the semi-circular plunger tube (102) abuts against the outer wall of the clamping tube (131), and the abutment position is located between the two clamping rings (133).

6. A self-destructing syringe for treating precocious puberty in children according to claim 5, characterized in that, The needle retraction power component (25) includes a through hole (251) that passes through the bottom of the U-shaped frame (22) and allows the injection needle (13) to pass through, and a second spring (252) that connects one end to the inner wall of the through hole (251) and the other end to the outer wall of the bottom retaining tube (131).

7. A self-destructing syringe for treating precocious puberty in children according to claim 1, characterized in that, The top of the outer wall of the plunger cylinder (10) is symmetrically provided with two first lugs (12), and the outer wall of the U-shaped frame (22) is symmetrically provided with two second lugs (221). The second lugs (221) are located below the first lugs (12).

8. A self-destructing syringe for treating precocious puberty in children according to claim 1, characterized in that, The plunger rod (11) includes two symmetrically arranged semi-circular plunger plates (111), a push rod (112) at the top of the semi-circular plunger plate (111), a rubber plunger (113) at the bottom of the semi-circular plunger plate (111), a third spring (114) between the two semi-circular plunger plates (111), and a disinfection and liquid storage component (115) between the two semi-circular plunger plates (111). The semi-circular plunger plate (111) is slidably connected to the inner wall of the semi-circular plunger cylinder (102), and the third spring (114) is located on the side of the semi-circular plunger plate (111) close to the split power component (21).

9. A self-destructing syringe for treating precocious puberty in children according to claim 8, characterized in that, The disinfection and liquid storage component (115) includes a storage cavity (1151) embedded in the semi-circular plunger plate (111) and an adhesive plate (1152) disposed on the inner wall of the storage cavity (1151). The storage cavity (1151) is used to store the disinfectant bladder, and the adhesive plate (1152) is used to bond the outer wall of the disinfectant bladder. When the two semi-circular plunger plates (111) separate and open, the disinfectant bladder bonded to the outer wall and the adhesive plate (1152) is torn open.

10. A self-destructing syringe for treating precocious puberty in children according to claim 5, characterized in that, It also includes a liquid-absorbing component (27) disposed at the bottom of the U-shaped frame (22). The liquid-absorbing component (27) includes a first sponge pad (271) embedded at the top of the U-shaped frame (22), a second sponge pad (272) disposed at the bottom of the U-shaped frame (22), and a plurality of third sponge pads (273) connected at one end to the first sponge pad (271) and at the other end to the second sponge pad (272). The needle head (132) penetrates the second sponge pad (272).

Images