Anti-injury intelligent syringe
By designing a puncture-proof smart syringe, the automatic hiding and revealing of the needle is achieved through the cooperation of a sliding block and a spring. This solves the risk of puncture when the syringe is not in use and addresses the issue of reuse, thereby improving safety and preventing contamination.
Patent Information
- Application Number
- CN202521099717.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-30
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-05-30
AI Technical Summary
Existing syringes have exposed needles when not in use, posing a risk of needlestick injury to operators and creating potential risks of drug contamination and cross-infection of diseases.
A puncture-proof smart syringe was designed, comprising a protective mechanism, an injection mechanism, and a limiting mechanism. Through the cooperation of a sliding block and a spring, the needle tip is automatically hidden and exposed, avoiding direct contact with the needle tip.
This effectively avoids the risk of needle stick injuries to operators, prevents the reuse of syringes, and reduces the risk of drug contamination and disease transmission.
Smart Images
Figure CN224937446U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of syringes, and specifically relates to a puncture-proof smart syringe. Background Technology
[0002] A syringe is a precision instrument widely used in medical, scientific research, and industrial fields. It is mainly used to accurately extract, store, and inject liquids or gases.
[0003] In existing devices, the needles are exposed when not in use. Operators may accidentally touch the needles during handling and storage, leading to the risk of needle sticking. Without strict control, the needles may be reused, resulting in drug contamination or cross-infection of diseases. Utility Model Content
[0004] To overcome the problems of needle exposure in existing devices when not in use, which could lead to needle sticking injuries due to operator accidental contact during handling and storage, and the potential for reuse without strict control, resulting in drug contamination or cross-infection, a needle sticking prevention smart syringe is proposed.
[0005] The technical solution of this utility model is as follows: a puncture-proof intelligent syringe, including a protective mechanism; an injection mechanism is provided inside the protective mechanism, and a limiting mechanism is provided on the inner wall of the protective mechanism; the protective mechanism includes an injection tube, a fixing block, a first groove, a limiting block, a baffle, and a second groove; two fixing blocks are fixed to the side wall of the injection tube, and a first groove is provided on the side of the fixing block away from the injection tube, a limiting block is fixed to the inner wall of the first groove, a baffle is fixed to both sides of the inner wall of the first groove, and a second groove is provided through one side of the baffle.
[0006] Furthermore, the protective mechanism also includes a first sliding block, a third groove, a first spring, a first moving block, and a protective block; the first sliding block is slidably installed on the side wall of the second groove, the third groove is opened on the side of the first sliding block near the injection tube, one end of the first spring is fixedly connected to the inner wall of the third groove, the other end of the first spring is fixedly connected to the first moving block, and the protective block is fixedly connected to the side of the first sliding block away from the injection tube.
[0007] Furthermore, the injection mechanism includes a needle, a second sliding block, a sliding tube, a rubber block, a hand-held block, and a round hole; the lower end of the injection tube is fixedly connected to the needle, the upper end of the injection tube is fixedly connected to the second sliding block, the upper end of the second sliding block is provided with a round hole, the sliding tube is slidably installed inside the round hole, the lower end of the sliding tube is fixedly connected to the rubber block, and the upper end of the sliding tube is fixedly connected to the hand-held block.
[0008] Furthermore, the limiting mechanism includes a fourth groove, a second spring, a second moving block, and a fifth groove; the fourth groove is provided on both sides of the inner wall of the injection tube, one end of the second spring is fixedly connected to the inner wall of the fourth groove, one end of the second moving block is fixedly connected to the other end of the second spring, and the fifth groove is provided at the lower end of the rubber block.
[0009] Furthermore, the length from the bottom of the injection tube to the bottom of the protective block exceeds the length from the bottom of the injection tube to the bottom of the needle.
[0010] Furthermore, the first sliding block is I-shaped, and its two sides slide against the two side walls of the second groove.
[0011] Furthermore, the two second moving blocks are adapted to the two fifth grooves at the lower end of the rubber block.
[0012] The beneficial effects of this utility model are: 1. First, the medicine is injected into the inside of the syringe. Then, the protective block moves, and the protective block drives the first sliding block to slide on both sides of the second groove. When the protective block slides down, the first moving block on one side of the first sliding block collides with the limiting block. The limiting block squeezes the first moving block, and the first moving block squeezes the first spring. The first spring is squeezed into the inside of the third groove, and the first moving block can slide smoothly to the lower end of the limiting block. The limiting block limits the first moving block to the lower end of the device. Since the lower end of the protective block exceeds the lower end of the syringe, the operator cannot touch the lower end of the syringe, thus avoiding operator error that could cause the syringe to injure the operator. 2. When needed, by sliding the protective block, the limiting block presses the first moving block, and the first moving block presses the first spring, allowing the protective block to slide smoothly to the upper ends of both sides of the injection tube, exposing the lower end of the syringe. Then, by sliding the hand block, the hand block slides the sliding tube downwards, and the sliding tube pushes the rubber block to slide. The two fifth grooves at the lower end of the rubber block facilitate the pressing of the second moving block. When the second moving block presses the second spring, it presses the second spring into the interior of the fourth groove, allowing the rubber block to slide smoothly to the lower end of the injection tube. When the second moving block limits the rubber block, the reuse of the injection tube can be avoided. Attached Figure Description
[0013] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model; Figure 2 The diagram shown is a first three-dimensional structural schematic of the protective mechanism of this utility model; Figure 3 The diagram shown is a second cross-sectional perspective view of the protective mechanism of this utility model. Figure 4 The diagram shown is a three-dimensional cross-sectional view of the injection mechanism of this utility model. Figure 5 The diagram shown is a cross-sectional three-dimensional structural schematic of the limiting mechanism of this utility model.
[0014] The labels in the attached diagram are as follows: 1. Protective mechanism; 11. Injection tube; 12. Fixing block; 13. First groove; 14. Limiting block; 15. Baffle; 16. Second groove; 17. First sliding block; 18. Third groove; 19. First spring; 110. First moving block; 111. Protective block; 2. Injection mechanism; 21. Needle; 22. Second sliding block; 23. Sliding tube; 24. Rubber block; 25. Hand-held block; 26. Round hole; 3. Limiting mechanism; 31. Fourth groove; 32. Second spring; 33. Second moving block; 34. Fifth groove. Detailed Implementation
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0016] Please see Figures 1-5 This utility model provides an embodiment: a puncture-proof smart syringe, including a protective mechanism 1; an injection mechanism 2 is provided inside the protective mechanism 1, and a limiting mechanism 3 is provided on the inner wall of the protective mechanism 1; the protective mechanism 1 includes an injection tube 11, a fixing block 12, a first groove 13, a limiting block 14, a baffle 15, and a second groove 16; two fixing blocks 12 are fixedly connected to the side wall of the injection tube 11, and the first groove 13 is provided on the side of the fixing block 12 away from the injection tube 11. The limiting block 14 is fixedly connected to the inner wall of the first groove 13, and the baffle 15 is fixedly connected to both sides of the inner wall of the first groove 13. The second groove 16 is provided through one side of the baffle 15.
[0017] In use, the medicine is first injected into the syringe 11. Then, the protective block 111 moves, causing the first sliding block 17 to slide on both sides of the second groove 16. When the protective block 111 slides downward, the first moving block 110 on one side of the first sliding block 17 collides with the limiting block 14. The limiting block 14 squeezes the first moving block 110, which in turn squeezes the first spring 19. The first spring 19 is squeezed into the third groove 18, allowing the first moving block 110 to slide smoothly to the lower end of the limiting block 14. The limiting block 14 then limits the first moving block 110 to the lower end of the device. Since the lower end of the protective block 111 extends beyond the lower end of the syringe 21, the operator cannot touch the lower end of the syringe 21, thus preventing operator error from accidentally injuring the operator. When needed, by sliding the protective block 111, the limiting block 14 presses the first moving block 110, and the first moving block 110 presses the first spring 19, so that the protective block 111 can slide smoothly to the upper ends of both sides of the injection tube 11, exposing the lower end of the needle tube 21. Then, by sliding the hand block 25, the hand block 25 slides the sliding tube 23 downward, and the sliding tube 23 pushes the rubber block 24 to slide. The two fifth grooves 34 at the lower end of the rubber block 24 facilitate the pressing of the second moving block 33. When the second moving block 33 presses the second spring 32, it presses the second spring 32 into the interior of the fourth groove 31, so that the rubber block 24 can slide smoothly into the lower end of the injection tube 11. When the second moving block 33 limits the rubber block 24, the reuse of the injection tube 11 can be avoided.
[0018] Please see Figure 2 and Figure 3 In this embodiment, the protective mechanism 1 further includes a first sliding block 17, a third groove 18, a first spring 19, a first moving block 110, and a protective block 111; the first sliding block 17 is slidably installed on the side wall of the second groove 16, the third groove 18 is opened on the side of the first sliding block 17 near the injection tube 11, one end of the first spring 19 is fixedly connected to the inner wall of the third groove 18, the other end of the first spring 19 is fixedly connected to the first moving block 110, and the protective block 111 is fixedly connected to the side of the first sliding block 17 away from the injection tube 11, thus limiting the protective block 111 to both sides of the injection tube 11.
[0019] Please see Figure 4In this embodiment, the injection mechanism 2 includes a needle tube 21, a second sliding block 22, a sliding tube 23, a rubber block 24, a hand-held block 25, and a round hole 26. The lower end of the injection tube 11 is fixedly connected to the needle tube 21, and the upper end of the injection tube 11 is fixedly connected to the second sliding block 22. The upper end of the second sliding block 22 is provided with a round hole 26. The sliding tube 23 is slidably installed inside the round hole 26. The lower end of the sliding tube 23 is fixedly connected to the rubber block 24, and the upper end of the sliding tube 23 is fixedly connected to the hand-held block 25. By pushing the sliding tube 23 with the hand-held block 25, the rubber block 24 is slid into the injection tube 11.
[0020] Please see Figure 5 In this embodiment, the limiting mechanism 3 includes a fourth groove 31, a second spring 32, a second moving block 33, and a fifth groove 34; the fourth groove 31 is provided on both sides of the inner wall of the injection tube 11, one end of the second spring 32 is fixedly connected to the inner wall of the fourth groove 31, and one end of the second moving block 33 is fixedly connected to the other end of the second spring 32; the fifth groove 34 is provided at the lower end of the rubber block 24, and the rubber block 24 is fixed by the second moving block 33.
[0021] Please see Figure 2 In this embodiment, the length from the lower end of the injection tube 11 to the lower end of the protective block 111 exceeds the length from the lower end of the injection tube 11 to the lower end of the needle tube 21. When the protective block 111 slides to the lower end of the side wall of the injection tube 11, it exceeds the needle tube 21, which can prevent the needle tube 21 from piercing the operator. When the protective block 111 slides to the upper end of the side wall of the injection tube 11, the needle tube 21 is exposed, and the device can be used normally.
[0022] Please see Figure 2 and Figure 3 In this embodiment, the first sliding block 17 is I-shaped, and the two sides of the first sliding block 17 slide on the two side walls of the second groove 16. The protective block 111 is fixed to the side wall of the baffle 15 by the first sliding block 17.
[0023] Please see Figure 4 and Figure 5 In this embodiment, the two second moving blocks 33 are adapted to the two fifth grooves 34 at the lower end of the rubber block 24, and the two fifth grooves 34 at the lower end of the rubber block 24 facilitate the rubber block 24 to slide over the two second moving blocks 33.
[0024] Working principle: First, the medicine is injected into the injection tube 11. Then, it moves past the protective block 111. The protective block 111 drives the first sliding block 17 to slide on both sides of the second groove 16. When the protective block 111 slides downward, the first moving block 110 on one side of the first sliding block 17 collides with the limiting block 14. The limiting block 14 squeezes the first moving block 110, and the first moving block 110 squeezes the first spring 19. The first spring 19 is squeezed into the third groove 18, and the first moving block 110 can slide smoothly to the lower end of the limiting block 14. The limiting block 14 limits the first moving block 110 to the lower end of the device. Since the lower end of the protective block 111 exceeds the lower end of the needle tube 21, the operator cannot touch the lower end of the needle tube 21, avoiding accidental injury to the needle tube 21 due to operator error. When needed, by sliding the protective block 111, the limiting block 14 presses the first moving block 110, and the first moving block 110 presses the first spring 19, so that the protective block 111 can slide smoothly to the upper ends of both sides of the injection tube 11, exposing the lower end of the needle tube 21. Then, by sliding the hand block 25, the hand block 25 slides the sliding tube 23 downward, and the sliding tube 23 pushes the rubber block 24 to slide. The two fifth grooves 34 at the lower end of the rubber block 24 facilitate the pressing of the second moving block 33. When the second moving block 33 presses the second spring 32, it presses the second spring 32 into the inside of the fourth groove 31, so that the rubber block 24 can slide smoothly into the lower end of the injection tube 11. When the second moving block 33 limits the rubber block 24, the reuse of the injection tube 11 can be avoided.
[0025] It should be understood that this embodiment is for illustrative purposes only and is not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.
Claims
1. A puncture-resistant smart syringe, characterized in that, It includes a protective mechanism (1); the protective mechanism (1) is equipped with an injection mechanism (2) inside, and a limiting mechanism (3) is provided on the inner wall of the protective mechanism (1); the protective mechanism (1) includes an injection tube (11), a fixing block (12), a first groove (13), a limiting block (14), a baffle (15) and a second groove (16); two fixing blocks (12) are fixed to the side wall of the injection tube (11), and the first groove (13) is opened on the side of the fixing block (12) away from the injection tube (11). The limiting block (14) is fixed to the inner wall of the first groove (13), and the baffle (15) is fixed to both sides of the inner wall of the first groove (13). The second groove (16) is opened through one side of the baffle (15).
2. The anti-puncture smart syringe according to claim 1, characterized in that, The protective mechanism (1) also includes a first sliding block (17), a third groove (18), a first spring (19), a first moving block (110), and a protective block (111); the first sliding block (17) is slidably installed on the side wall of the second groove (16), the third groove (18) is opened on the side of the first sliding block (17) near the injection tube (11), one end of the first spring (19) is fixedly connected to the inner wall of the third groove (18), the other end of the first spring (19) is fixedly connected to the first moving block (110), and the protective block (111) is fixedly connected to the side of the first sliding block (17) away from the injection tube (11).
3. The anti-puncture smart syringe according to claim 1, characterized in that, The injection mechanism (2) includes a needle tube (21), a second sliding block (22), a sliding tube (23), a rubber block (24), a hand-held block (25), and a round hole (26). The lower end of the injection tube (11) is fixedly connected to the needle tube (21), the upper end of the injection tube (11) is fixedly connected to the second sliding block (22), the upper end of the second sliding block (22) is provided with a round hole (26), the sliding tube (23) is slidably installed inside the round hole (26), the lower end of the sliding tube (23) is fixedly connected to the rubber block (24), and the upper end of the sliding tube (23) is fixedly connected to the hand-held block (25).
4. The anti-puncture smart syringe according to claim 3, characterized in that, The limiting mechanism (3) includes a fourth groove (31), a second spring (32), a second moving block (33) and a fifth groove (34); the fourth groove (31) is provided on both sides of the inner wall of the injection tube (11), one end of the second spring (32) is fixedly connected to the inner wall of the fourth groove (31), one end of the second moving block (33) is fixedly connected to the other end of the second spring (32), and the fifth groove (34) is provided at the lower end of the rubber block (24).
5. The anti-puncture smart syringe according to claim 3, characterized in that, The length from the lower end of the injection tube (11) to the lower end of the protective block (111) exceeds the length from the lower end of the injection tube (11) to the lower end of the needle tube (21).
6. The anti-puncture smart syringe according to claim 2, characterized in that, The first sliding block (17) is I-shaped, and the two sides of the first sliding block (17) slide on the two side walls of the second groove (16).
7. The anti-puncture smart syringe according to claim 4, characterized in that, The two second moving blocks (33) are adapted to the two fifth grooves (34) at the lower end of the rubber block (24).