Splash-proof injector
By designing the movable plate and splash-proof cover structure in the syringe, the problems of needle falling off and liquid sputtering when the syringe is dispensed or discharged from the air are solved, and the stability of the needle and the anti-splash effect of the liquid are achieved.
Patent Information
- Application Number
- CN202420494595.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-14
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-03-14
AI Technical Summary
Existing syringes are prone to needle peeling and liquid sputtering when dispensing medicine or venting air. The existing anti-splash device cannot effectively solve the problems of needle peeling and liquid sputtering.
A splash-proof syringe is designed, including a needle tube, needle bolt, piston, push rod and push handle. The inner cavity of the needle tube is set up with a movable plate near the end of the needle bolt, a needle is set at the bottom of the movable plate, and it is connected to the needle through the through hole. The needle bolt is set A splash cover is installed at the distal end, and the needle is penetrated through the movable plate and the splash cover. The protective cover can be detached and installed at the end of the needle tube. The protective cover is threaded to the mounting seat. The movable plate can slide up and down on the inner wall of the needle tube to prevent the needle from falling off and medicine. Liquid sputtering.
It effectively avoids the problems of syringe needle falling off and sputtering of the medicine liquid, ensuring safety and stability during use.
Smart Images
Figure CN222286109U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of syringes, in particular to a splash-proof syringe. Background Art
[0002] When medical staff are dispensing medicine or exhausting air, the pressure inside the syringe increases. If the speed is too fast, the needle may fall off and the medicine may spray.
[0003] In the prior art, there is a medical syringe with publication number: CN207532607U, comprising: a syringe body, and an anti-splashing device installed at the needle nipple position of the syringe body, which is used to prevent the powder medicine from being sprayed out from the needle insertion point and splashing onto the surrounding air or medical staff at the moment when the needle is inserted into the powder medicine bottle; wherein the anti-splashing device has a closed end for connecting the needle nipple, and a flared end for covering the needle insertion point.
[0004] The above-mentioned device can solve the problem of splashing by adding a splash-proof device at the needle plug of the syringe to avoid splashing of the medicine. However, the problem of the needle falling off still exists when the syringe is dispensing medicine or exhausting air. When the needle falls off or the needle and the needle plug are loose, the medicine inside the syringe is quickly ejected through the gap between the needle and the needle plug or the needle plug, and the problem of splashing still exists. Utility Model Content
[0005] 1. Technical issues to be resolved
[0006] In order to solve the above problems in the prior art, the utility model provides a splash-proof syringe, which can effectively avoid the problems of needle falling off and drug liquid splashing.
[0007] (II) Technical solution
[0008] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:
[0009] A splash-proof syringe comprises a needle tube, a needle plug at one end of the needle tube, a piston, a push rod and a push handle, a movable plate is arranged at one end of the inner cavity of the needle tube near the needle plug, a needle is arranged at the bottom of the movable plate, a through hole connected to the needle is opened on the movable plate, a splash-proof cover is arranged at the end of the needle plug away from the needle tube, the end of the needle away from the movable plate passes through the needle plug and the splash-proof cover in sequence, and a protective cover is detachably arranged at one end of the needle tube at the needle plug. The problem of liquid medicine splashing and syringe needle falling off can be effectively avoided.
[0010] Preferably, the needle tube is further provided with a mounting seat at one end of the needle bolt, and the protective cover is threadedly connected to the mounting seat.
[0011] Preferably, the movable plate can slide up and down on the inner wall of the needle tube.
[0012] Preferably, the pintle and the splash shield are both located in the inner cavity of the protective cover.
[0013] (III) Beneficial effects
[0014] The utility model provides a splash-proof syringe, which has the following beneficial effects:
[0015] (1) It can effectively prevent the needle of the syringe from falling off when the syringe is in use.
[0016] (2) Effectively solve the problem of drug splashing. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is the structural diagram of the utility model;
[0018] Figure 2 This is a structural diagram of the inner cavity of the needle tube when the needle of the utility model is pushed out;
[0019] Figure 3 This is a structural diagram of the connection between the movable plate and the needle of the utility model.
[0020] In the figure: 1. needle tube; 2. needle bolt; 3. piston; 4. push rod; 5. push handle; 6. movable plate; 7. needle; 8. through hole; 9. splash shield; 10. protective cover; 11. mounting seat. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] like Figure 1-3 As shown, the splash-proof syringe of this embodiment includes a needle tube 1, a needle plug 2 at one end of the needle tube 1, a piston 3, a push rod 4 and a push handle 5. A movable plate 6 is provided at the inner cavity of the needle tube 1 near the end of the needle plug 2. A needle 7 is provided at the bottom of the movable plate 6. A through hole 8 connected to the needle 7 is provided on the movable plate 6. The needle 7 is connected to the inner cavity of the needle tube 1 through the movable plate 6, which can effectively prevent the needle 7 from falling off from the needle plug 2. A splash-proof cover 9 is also provided at the end of the needle plug 2 away from the needle tube 1. The splash-proof cover 9 can prevent the liquid medicine from splashing the gap between the needle and the needle plug. The end of the needle 7 away from the movable plate 6 passes through the needle plug 2 and the splash-proof cover 9 in sequence. A protective cover 10 is detachably provided at the end of the needle tube 1 located at the needle plug 2. The protective cover 10 can protect the needle 7 and the splash-proof cover 9.
[0023] Furthermore, the needle tube 1 is provided with a mounting seat 11 at one end of the needle plug 2, and the protective cover 10 is threadedly connected to the mounting seat 11, so that the protective cover 10 can be easily removed.
[0024] Furthermore, the movable plate 6 can slide up and down on the inner wall of the needle tube 1 .
[0025] Furthermore, the pintle 2 and the splash shield 9 are both located in the inner cavity of the protective cover 10 .
[0026] Working principle: When in use, first unscrew the protective cover 10, then push the push rod 4 through the push handle 5, and the piston 3 can push the movable plate 6 to one end close to the needle plug 2 through the push of the push rod 4. At this time, the needle 7 extends out of the needle plug 2, and then the medicine is dispensed. After one end of the needle 7 extends out of the needle plug 2, due to the damping effect between the needle 7 and the needle plug 7, and the movable plate 6 and the needle tube 1, the movable plate 6 no longer slides in the needle tube 1.
Claims
1. A splash-proof syringe, comprising a needle tube (1), a needle plug (2) at one end of the needle tube (1), a piston (3), a push rod (4) and a push handle (5), characterized in that: A movable plate (6) is arranged at one end of the inner cavity of the needle tube (1) close to the needle plug (2), a needle head (7) is arranged at the bottom of the movable plate (6), a through hole (8) connected to the needle head (7) is opened on the movable plate (6), a splash shield (9) is also arranged at one end of the needle plug (2) away from the needle tube (1), the end of the needle head (7) away from the movable plate (6) passes through the needle plug (2) and the splash shield (9) in sequence, and a protective cover (10) is detachably arranged at one end of the needle tube (1) located at the needle plug (2).
2. A splash-proof syringe according to claim 1, characterized in that: The needle tube (1) is also provided with a mounting seat (11) at one end of the needle bolt (2), and the protective cover (10) is threadedly connected to the mounting seat (11).
3. A splash-proof syringe according to claim 1, characterized in that: The movable plate (6) can slide up and down on the inner wall of the needle tube (1).
4. A splash-proof syringe according to claim 1, characterized in that: The pintle (2) and the splash shield (9) are both located in the inner cavity of the protective cover (10).