Needle destroying device

Abstract

The invention belongs to the technical field of auxiliary medical instruments, and particularly relates to a needle destroying device. The device comprises a box body, two fixed blocks are vertically fixed to the inner top of the box body, a first through hole is formed in the top of the box body, and two movable blocks are arranged between the two fixed blocks; a sliding plate is arranged below the movable block, and a second through hole is formed in the sliding plate; an ablation mechanism for melting the needle stem is arranged in the box body below the sliding plate, a partition plate is vertically fixed to the inner bottom of the box body, and the partition plate divides the inner bottom of the box body into two independent areas. The needle tip and the needle stem of the needle head are melted, so that the needle head is destroyed; the pintle moves downwards, so that the movable block can be ejected open and then reset, the pintle can be clamped below the movable block through the movable block, the pintle is separated and melted, the pintle is independently collected through the sliding plate, and the plastic material of the pintle is prevented from being mixed with metal obtained after a pinpoint and a needle stem are melted.

Description

Technical Field

[0001] The invention belongs to the technical field of auxiliary medical devices, and in particular relates to a needle destroying device. Background Art

[0002] In hospitals, needles are used very frequently. Needles are often used in conjunction with syringes. For example, needles are needed to inject drugs, infuse or draw blood through syringes. Needles are generally made of metal, mostly stainless steel. For safety, existing syringes and needles are disposable medical devices. Therefore, after use, the needles need to be destroyed. The common practice is to take out the needles and place them in sharps for separate storage and subsequent unified treatment. However, in the process of subsequent treatment and destruction, the messy needles can easily cause harm to the recycling personnel, and are easily recycled and used by bad elements, posing a safety hazard.

[0003] At present, there are devices for destroying needles, which mainly crush the needles through a crushing mechanism. The needles are made of metal, and the crushing mechanism is a hard and forced destruction. During long-term use, the crushing mechanism is easily damaged and has a relatively short life, which makes it inconvenient to destroy the needles. In addition, blood or other contaminants may stick to the needles. During the crushing process, the needles come into contact with the crushing mechanism, which may easily cause contamination of the crushing mechanism. Most crushing mechanisms crush the needles through the engagement of crushing rollers. The structure of the crushing rollers causes the surfaces to be irregular, making it difficult to clean the crushing rollers, which also affects the destruction of the needles. In addition, the needles include a needle tip, a needle stem and a needle plug. The needle plugs of disposable needles are mostly made of plastic. At present, when crushing the needles, the needle tip, the needle stem and the needle plug are crushed together, resulting in the mixing of plastic and metal, which is inconvenient for subsequent processing. Summary of the invention

[0004] The purpose of the present invention is to provide a needle destruction device to solve the problems in the above-mentioned background technology, facilitate the destruction of needles, and reduce the mixing of metal and plastic in the needles.

[0005] The needle destroying device comprises a box body, two left and right parallel fixed blocks are vertically fixed on the inner top of the box body, a first through hole for the needle to pass through is opened on the top of the box body between the two fixed blocks, two left and right distributed movable blocks are arranged between the two fixed blocks, the contact ends of the two movable blocks are wedge-shaped with the needle, and the fixed blocks are provided with movable mechanisms that enable the movable blocks to be horizontally moved to both sides and then reset;

[0006] A sliding plate is horizontally arranged below the movable block, the top of the sliding plate is an inclined surface, a second through hole for the needle stem to pass through is opened on the sliding plate, one end of the sliding plate is fixed to one of the fixed blocks, and a gap for the needle bolt to pass through is left between the other end of the sliding plate and the other fixed block;

[0007] An ablation mechanism for melting needle stems is arranged in the box below the sliding plate, and a partition is vertically fixed to the inner bottom of the box, which divides the inner bottom of the box into two independent areas, and the two areas collect needle stems and needle plugs respectively.

[0008] Furthermore, the contact end of the movable block is in the shape of a truncated cone that is larger at the top and smaller at the bottom.

[0009] Furthermore, the left end of the sliding plate is fixed to the fixed block on the left, the top surface of the sliding plate is an inclined surface with the left side higher and the right side lower, the horizontal height of the bottom of the left fixed block is lower than the horizontal height of the bottom of the right fixed block, and the right end of the sliding plate is located below the right fixed block, and a gap is left between the top of the right end of the sliding plate and the bottom of the right fixed block for the pin to pass through.

[0010] Furthermore, the movable mechanism includes a first spring horizontally fixed on the outside of the movable block, and a sliding groove for the movable block to slide left and right is opened on the fixed block corresponding to the movable block. The first spring is installed between the movable block and the bottom of the sliding groove. The first spring contacts the two movable blocks in a natural state.

[0011] Furthermore, a guide rod is installed in the first spring, a third through hole is provided at the bottom of the slide slot for the guide rod to pass through, one end of the guide rod is fixed to the movable block, and the other end of the movable block passes through the third through hole to fix the limit block.

[0012] Furthermore, a roller that rolls left and right on the top of the movable block is installed on the inner top of the slide groove.

[0013] Furthermore, the ablation mechanism includes a laser beam focuser, which is mounted on the side wall of the box body, and the focus of the laser beam focuser is located directly below the second through hole of the sliding plate.

[0014] Furthermore, liquid is stored in the area for collecting the melted needle stems, and a liquid inlet pipe for the liquid to enter and a liquid discharge pipe for the liquid to discharge are installed in the corresponding area, and valves are installed on the liquid inlet pipe and the liquid discharge pipe.

[0015] Furthermore, a collecting mechanism for collecting the gas generated by the laser beam ablation needle stem is provided on the top of the box.

[0016] Furthermore, a speed limiting mechanism for limiting the insertion speed of the needle is arranged on the top of the box.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention destroys the needle by melting the needle tip and the needle stem, thereby avoiding secondary use, and has a certain sterilization effect through high temperature; and through the activity of the movable block and the wedge-shaped cooperation of the needle bolt, the needle bolt can be moved downward to push the movable block open and reset the movable block, so that the movable block can clamp the needle bolt under the movable block, separate the needle bolt, melt and collect the needle bolt separately through the sliding plate, and avoid the plastic material of the needle bolt and the melted metal of the needle tip and the needle stem from mixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0021] Figure 3 for Figure 1 A schematic diagram of the structure of the middle sliding plate from a top view;

[0022] Figure 4 for Figure 1 A schematic diagram of a top view structure;

[0023] Figure 5 for Figure 1 A rear view structural diagram of ;

[0024] The names of the components in the figure are: 1. Box body; 2. Partition; 3. Sliding plate; 4. Mounting block; 5. Exhaust fan; 6. Fixed block; 7. First connecting pipe; 8. Second connecting pipe; 9. Movable block; 10. First fixed plate; 11. Cylinder; 12. Screw; 13. Nut; 14. Second spring; 15. Laser beam collector; 16. Liquid inlet pipe; 17. Liquid outlet pipe; 18. Limit block; 19. Guide rod; 20. First spring; 21. Roller; 22. Collecting tank; 23. Third connecting pipe; 24. Storage tank; 25. Fourth connecting pipe; 26. Branch pipe. DETAILED DESCRIPTION

[0025] The present invention is further described below through specific embodiments in conjunction with the accompanying drawings, but the present invention is not limited thereto. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0026] A needle destroying device described in this embodiment, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, it includes a box body 1, the top of the box body 1 is sealed, two left and right parallel fixing blocks 6 are vertically fixed on the inner top of the box body 1, a first through hole for the needle to pass through is opened on the top of the box body 1 between the two fixing blocks 6, when the syringe is used, the first through hole needs to allow the syringe barrel to pass through, two left and right distributed movable blocks 9 are arranged between the two fixing blocks 6, the thickness of the movable block 9 is smaller than the gap between the needle plug and the bottom of the syringe after the needle plug of the needle is installed on the nipple of the syringe, and the contact ends of the two movable blocks 9 are wedge-shaped with the needle.

[0027] The contact end of the movable block 9 is generally in the shape of a truncated cone with a larger top and a smaller bottom. The right end of the left movable block 9 and the left end of the right movable block 9 are generally in the shape of a truncated cone, and the diameter of the bottom is smaller than the diameter of the top, so that the needle tip of the needle can pass through easily. Moreover, when the needle bolt and the movable block 9 are in a wedge-shaped fit, it is not easy for the needle bolt to slide forward and backward. This section makes the contact end of the movable block 9 fit with the needle in a wedge-shaped fit.

[0028] A sliding plate 3 is horizontally arranged below the movable block 9, the top of the sliding plate 3 is an inclined surface, and a second through hole for the needle stem to pass through is opened on the sliding plate 3. Of course, in order to prevent the needle plug from being stuck on the sliding plate 3 after being pulled out of the syringe, Figure 3 As shown, a through groove for the needle bolt to slide out is opened at the lower end of the sliding plate 3, and the through groove is connected to the second through hole. When the movable block 9 pulls out the needle bolt, the remaining needle stem is reduced and stuck in the second through hole, so that the needle bolt slides from the top of the sliding plate 3.

[0029] One end of the sliding plate 3 is fixed to one of the fixed blocks 6, and a gap for the needle plug to pass through is left between the other end of the sliding plate 3 and the other fixed block 6. A partition 2 is vertically fixed to the inner bottom of the box 1, and the partition 2 divides the inner bottom of the box 1 into two independent areas, and the two areas collect the needle stem and the needle plug respectively. In order to facilitate the collection of the syringes that destroy the needles, the side wall of the box 1 is fixed with a collection groove 22 with the notch facing upward. After the needle is inserted into the box 1 by the syringe to complete the destruction of the needle, the syringe is taken out, melted and thrown into the collection groove 22 for collection.

[0030] The left end of the sliding plate 3 is fixed to the fixed block 6 on the left side, the top surface of the sliding plate 3 is an inclined surface with the left side higher and the right side lower, the horizontal height of the bottom of the left fixed block 6 is lower than the horizontal height of the bottom of the right fixed block 6, and the right end of the sliding plate 3 is located below the right fixed block 6, and a gap for the pin to pass through is left between the top of the right end of the sliding plate 3 and the bottom of the right fixed block 6, and the partition 2 is located between the second through hole on the sliding plate 3 and the right end of the sliding plate 3, that is, the second through hole on the sliding plate 3 is located on the left side of the partition 2, and the right end of the sliding plate 3 is located on the partition 2, and such a design can increase the distance between the partition 2 and the second through hole on the sliding plate 3, reduce the needle tip and the needle stem from falling into the area on the right side of the partition 2 after being melted, and when the movable block 9 pulls out the needle bolt, the needle bolt slides from the top of the right end of the sliding plate 3 to the area on the right side of the partition 2; of course, in some embodiments, the length of the sliding plate 3 can also be less than the distance between the two fixed blocks 6, the sliding plate 3 is fixed to the fixed block 6 on the left, and a gap for the needle bolt to pass is left between the right end of the sliding plate 3 and the fixed block 6 on the right.

[0031] The corresponding movable block 9 is provided with a slide groove on the fixed block 6 for the movable block 9 to slide left and right, the right side wall of the left fixed block 6 is provided with a slide groove for the left movable block 9 to slide, and the left side wall of the right fixed block 6 is provided with a slide groove for the right movable block 9 to slide. A first spring 20 is installed between the movable block 9 and the bottom of the slide groove, one end of the first spring 20 is fixed to the movable block 9, and the other end of the first spring 20 is fixed to the bottom of the slide groove. The first spring 20 contacts the two movable blocks 9 in a natural state. When the needle bolt and the movable block 9 are wedge-shaped, the two movable blocks 9 move to both sides to compress the first spring 20. When the needle bolt passes between the two movable blocks 9, the first spring 20 restores its elasticity, so that the two movable blocks 9 move to the middle, and the needle bolt is stuck under the movable block 9. By pulling the syringe upward, the needle bolt is removed. Of course, in some embodiments, the first spring 20 can be replaced by an arc-shaped and elastic metal sheet, such as a "C"-shaped structure, and the elasticity of the metal sheet allows the two movable blocks 9 to slide in space. The content of this paragraph as a whole constitutes a movable mechanism that enables the movable block 9 to move horizontally to both sides and then reset.

[0032] A guide rod 19 is installed in the first spring 20, and a third through hole is provided at the bottom of the slide slot for the guide rod 19 to pass through, a third through hole is provided on the left side wall of the left slide slot, and a third through hole is provided on the right side of the right slide slot. One end of the guide rod 19 is fixed to the movable block 9, and the other end of the movable block 9 passes through the third through hole to fix the limiting block 18. The limiting block 18 is a circular plate, and the diameter of the third through hole is smaller than the diameter of the limiting block 18. The sliding of the movable block 9 and the compression of the first spring 20 can be limited by the guide rod 19 to reduce the sliding deviation of the movable block 9, and the limiting block 18 can prevent the guide rod 19 from detaching from the third through hole and preventing the movable block 9 from detaching from the slide slot. Moreover, the limiting block 18 can prevent the first spring 20 from being fixed to the movable block 9 and the slide slot, so as to facilitate installation.

[0033] A roller 21 is installed on the inner top of the slide groove and rolls left and right on the top of the movable block 9. The roller 21 is a directional wheel that rolls left and right. The roller 21 can reduce the gap between the movable block 9 and the upper and lower sides of the slide groove, and can reduce the up and down deviation of the movable block 9 in the slide groove. Moreover, the contact area between the roller 21 and the top of the movable block 9 is small, which can reduce friction and reduce the restriction on the sliding of the movable block 9.

[0034] The side wall of the box is installed with a laser beam collector 15. The laser beam collector 15 is a known technology. The laser beam collector 15 has multiple laser beams, and the multiple laser beams have a focus, and the focus will generate high temperature. The laser beam collector 15 is installed on the side wall of the box 1, and the laser beam of the laser beam collector 15 is emitted horizontally. A mounting plate is fixed horizontally on the outer wall of the box 1. The laser beam collector 15 is installed on the top of the mounting plate. The side wall of the box 1 begins to have a mounting port for the laser beam collector 15 to pass through. The emission end of the laser beam collector 15 is located in the mounting port. The focus of the laser beam collector 15 is located at the second through hole of the sliding plate 3. Directly below, when in use, the needle tip and needle stem of the needle pass through the second through hole and coincide with the focus of the laser beam focuser 15, and the needle tip and needle stem are melted by the focus of the laser beam focuser 15 to destroy the needle; of course, in some embodiments, a metal block can also be installed below the sliding plate 3, and then the metal block is heated to generate a high temperature by a high-frequency heating method. When the needle tip and needle stem pass through the second through hole on the sliding plate 3 and contact the metal block, the metal block melts the needle tip and needle stem. Of course, in order to avoid high temperature, a heat insulation layer is provided on the inner wall of the box 1, the bottom of the sliding plate 3, and the outer side of the fixed block 6. The content of this paragraph as a whole constitutes an ablation mechanism for melting the needle stem.

[0035] Liquid is stored in the area for collecting the melted needle stems, and an inlet pipe 16 for liquid entry and a drain pipe 17 for liquid discharge are installed in the corresponding area. Valves are installed on the inlet pipe 16 and the drain pipe 17. Liquid is stored in the area on the left, and the liquid is preferably a coolant. Of course, it can also be a disinfectant or an ordinary liquid. When the melted needle stem metal falls, it is placed in the coolant for cooling. The liquid can prevent the melted needle stem metal from adhering to the area on the left side of the partition 2, and the coolant and the melted metal can be discharged together through the drain pipe 17, which is more convenient. Of course, in order to reduce the residual liquid, the bottom of the area on the left side of the partition 2 is an inclined surface, and the side close to the drain pipe 17 is lower; of course, a door is installed on the box body 1 in the right area, and the needle plug in the area on the right side of the partition 2 is taken out through the door.

[0036] A ventilating hole communicating with each other up and down is provided on the top of the box body 1, and preferably two ventilating holes are provided. A mounting block 4 is fixed horizontally in the box body 1 below the ventilating hole, and a mounting groove communicating with each other up and down is provided on the mounting block 4, and an exhaust fan 5 for exhausting air upward is installed in the mounting groove. A storage tank 24 for collecting gas is fixed on the side wall of the box body 1, and the storage tank 24 is connected to the ventilating hole through a connecting pipe. The connecting pipe includes two vertically arranged first connecting pipes 7, and the first connecting pipes 7 are respectively connected to the ventilating hole. A second connecting pipe 8 is horizontally arranged above the storage tank 24, and the first connecting pipe 7 is connected to the second connecting pipe 8 through a third connecting pipe 23, and the second connecting pipe 8 is connected to the storage tank 24 through a fourth connecting pipe 25. A one-way valve for gas flowing into the storage tank 24 is installed on the third connecting pipe 23. When the laser beam focuser 15 melts the needle stem, it will generate gas, and the gas will flow upward. When passing through the exhaust fan 5, the gas enters the storage tank 24 through the connecting pipe, which can reduce gas leakage and odor. The content of this paragraph as a whole constitutes a collection mechanism for collecting the gas generated by the laser beam focuser 15 when ablating the needle stem.

[0037] Of course, in order to avoid high temperature in the storage tank 24, coolant is stored in the storage tank 24, and in order to achieve a better cooling effect, a branch pipe 26 is provided on the outside of the storage tank 24, the bottom end of the branch pipe 26 is connected to the bottom of the storage tank 24, the top of the branch pipe 26 is connected to the top of the storage tank 24, and a nozzle is installed on the inner top of the storage tank 24, the top of the branch pipe 26 is connected to the nozzle, and the branch pipe 26 is installed with a pump, which can be used to spray the coolant in the storage tank 24 from the nozzle to cool the gas in the storage tank 24, and the effect is better.

[0038] A barrel 11 is vertically fixed to the top of the box body 1, and the barrel 11 is located on one side of the first through hole. The upper and lower ends of the barrel 11 are closed, and a screw 12 is vertically arranged in the barrel 11. Circular grooves for inserting the upper and lower ends of the screw 12 are provided at the inner top and bottom of the barrel 11. The upper and lower ends of the screw 12 are located in the circular grooves, and a bearing is installed between the screw 12 and the circular groove. Of course, the outer wall of the screw 12 that cooperates with the bearing has no thread. A nut 13 that forms a spiral pair with the screw 12 is provided on the screw 12, and the nut 13 is a lead screw nut. A first fixing plate 10 is horizontally arranged above the first through hole, and a sliding groove for the first fixing plate 10 to pass through and slide up and down is provided on the barrel 11. One end of the first fixing plate 10 passes through the sliding groove and is fixed to the nut 13, and a fourth through hole for the syringe barrel to pass through is provided on the first fixing plate 10, and the first The fixed plate 10 can block the curling edge at the top of the syringe barrel. Of course, in order to facilitate the insertion of the syringe into the fourth through hole, a first through groove for the syringe barrel to pass through is opened at the end of the first fixed plate 10 away from the barrel 11. The curling edge of the syringe barrel is blocked by the first fixed plate 10, and the first fixed plate 10 is pressed downward. The second spring 14 can rotate freely through the bearing, and the sliding groove can limit the rotation of the first fixed plate 10, so that the first fixed plate 10 can limit the rotation of the nut 13. Therefore, pressing the first fixed plate 10 downward will cause the second spring 14 to rotate, thereby causing the nut 13 to move up and down, and the downward movement speed of the first fixed plate 10 is limited by the up and down movement of the nut 13; the content of this paragraph as a whole constitutes a speed limiting mechanism for limiting the insertion speed of the needle.

[0039] Of course, in order to make the sliding groove better restrict the first fixed plate 10, it is preferred that the cylinder 11 is a rectangular structure, and the side wall of the cylinder 11 is a plane. Of course, in order to make the nut 13 automatically reset after moving downward, a second spring 14 is sleeved on the screw 12 below the nut 13. The nut 13 moves downward to compress the second spring 14. After the first fixed plate 10 is loosened, the second spring 14 is rotated in the opposite direction through the recovery elasticity of the second spring 14 to move the nut 13 upward; of course, when there is no second spring 14, it is necessary to manually lift the first fixed plate 10 upward, or make the top of the screw 12 exceed the top of the cylinder 11, and rotate the top of the screw 12 to move the nut 13 upward.

[0040] Working principle:

[0041] After the needle is used, the syringe is held vertically to insert the needle through the first through hole into between the two fixed blocks 6 in the box body 1, and the needle tip passes through between the two movable blocks 9 and the second through hole on the sliding plate 3, and then the needle tip and the needle stem are melted at high temperature by the focus of the laser beam concentrator 15, and the melted metal materials of the needle tip and the needle stem fall into the area on the left side of the partition 2 for collection. When the needle continues to move downward, the needle bolt of the needle cooperates with the wedge shape of the movable block 9, so that the needle bolt pushes the two movable blocks 9 to the left and right sides, so that the needle bolt is located below the movable block 9. When the needle bolt passes through the movable block 9, due to the injection The diameter of the syringe nipple is smaller than the diameter of the needle plug, so the movable block 9 is reset to the middle under the action of the first spring 20, and the movable block 9 clamps the needle plug under the movable block 9. The syringe is melted and pulled upward, so that the needle plug can be separated from the nipple of the syringe, and the separated needle plug slides from the top of the sliding plate 3 to the area on the right side of the partition 2 for collection. In this way, the area on the left side of the partition 2 is metal material, and the area on the right side of the partition 2 is the remaining needle stem and needle plug, so as to avoid the molten metal from mixing with the clinker, and when the needle tip and the needle stem are melted by the laser beam concentrator 15, the destruction of the needle is completed, and its high temperature can also play a role in high-temperature sterilization.

Claims

1. A needle destruction device, comprising a housing (1), characterized in that: Two left and right parallel fixed blocks (6) are vertically fixed on the inner top of the box body (1); a first through hole for the needle to pass through is opened on the top of the box body (1) between the two fixed blocks (6); two left and right distributed movable blocks (9) are arranged between the two fixed blocks (6); the contact ends of the two movable blocks (9) are wedge-shaped with the needle; and a movable mechanism is arranged on the fixed block (6) to enable the movable block (9) to be horizontally moved to both sides and then reset; A sliding plate (3) is horizontally arranged below the movable block (9), the top of the sliding plate (3) is an inclined surface, a second through hole for the needle plug to pass through is opened on the sliding plate (3), one end of the sliding plate (3) is fixed to one of the fixed blocks (6), and a gap for the needle plug to pass through is left between the other end of the sliding plate (3) and the other fixed block (6); An ablation mechanism for melting needle stems is arranged in the box (1) below the sliding plate (3), and a partition (2) is vertically fixed to the inner bottom of the box (1). The partition (2) divides the inner bottom of the box (1) into two independent areas, and the two areas collect needle stems and needle plugs respectively.

2. The needle destroying device according to claim 1, characterized in that: The contact end of the movable block (9) is in the shape of a truncated cone with a larger upper portion and a smaller lower portion.

3. The needle destroying device according to claim 2, characterized in that: The left end of the sliding plate (3) is fixed to the left fixed block (6), the top surface of the sliding plate (3) is an inclined surface with the left side higher than the right side, the horizontal height of the bottom of the left fixed block (6) is lower than the horizontal height of the bottom of the right fixed block (6), and the right end of the sliding plate (3) is located below the right fixed block (6), and a gap is left between the top of the right end of the sliding plate (3) and the bottom of the right fixed block (6) for the pin to pass through.

4. The needle destroying device according to claim 3, characterized in that: The movable mechanism comprises a first spring (20) fixed horizontally on the outside of the movable block (9); a sliding groove for the movable block (9) to slide left and right is provided on the fixed block (6) corresponding to the movable block (9); the first spring (20) is installed between the movable block (9) and the bottom of the sliding groove; the first spring (20) contacts the two movable blocks (9) in a natural state.

5. The needle destroying device according to claim 4, characterized in that: A guide rod (19) is inserted into the first spring (20), a third through hole for the guide rod (19) to pass through is provided at the bottom of the slide slot, one end of the guide rod (19) is fixed to the movable block (9), and the other end of the movable block (9) passes through the third through hole to fix the limit block (18).

6. The needle destroying device according to claim 5, characterized in that: A roller (21) is installed on the inner top of the slide groove and rolls left and right on the top of the movable block (9).

7. The needle destroying device according to claim 6, characterized in that: The ablation mechanism comprises a laser beam focuser (15), which is mounted on the side wall of the box (1), and the focus of the laser beam focuser (15) is located directly below the second through hole of the sliding plate (3).

8. The needle destroying device according to claim 7, characterized in that: Liquid is stored in the area for collecting the melted needle stems, and a liquid inlet pipe (16) for the liquid to enter and a liquid discharge pipe (17) for the liquid to discharge are installed in the corresponding area, and valves are installed on the liquid inlet pipe (16) and the liquid discharge pipe (17).

9. The needle destroying device according to claim 8, characterized in that: The top of the box (1) is provided with a collecting mechanism for collecting the gas generated by the laser beam collector (15) when ablating the needle stem.

10. The needle destroying device according to claim 9, characterized in that: The top of the box (1) is provided with a speed limiting mechanism for limiting the insertion speed of the needle.

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