Novel residue-free syringe
By setting a conductor on the syringe, the medicinal solution is directly transported to the injection needle tube, which solves the problem of the traditional Chinese medicine residue in the injection process in the injection process, and realizes the accuracy and effective utilization of the drug injection volume and the resource.
Patent Information
- Application Number
- CN202420690422.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-07
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-04-07
AI Technical Summary
During the injection process of existing syringes, there will be residual medicine in the cavity of the needle seat, resulting in waste of resources, environmental pollution, and insufficient injection amount of medicine to patients, affecting the treatment effect.
Designed a new type of non -residual syringe, by setting a guide pipe on the syringe, inserted into the pipe connection cavity of the pipe tube in the needle seat, so that the medicinal solution in the syringe is directly transported to the injection pipe tube In the lumen, avoid the residue of the liquid.
Effectively avoiding the patented solution in the needle during the absorption and injection process, ensuring the accuracy of the amount of injection of the patient's medicinal solution, reducing the waste of resource and environmental pollution, and improving the treatment effect.
Smart Images
Figure CN222399776U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical instruments, in particular to a novel syringe without residue. Background Art
[0002] A syringe is a common medical device. It consists of a syringe with a small hole at the front end and a matching piston core rod. The syringe is used to inject a small amount of liquid or gas into areas that are inaccessible by other methods or to extract it from those places. Pushing the piston core rod can squeeze out the liquid or gas in the syringe to complete the injection.
[0003] The existing syringe and injection needle body are connected through a needle seat, and the rear port of the needle seat is a Luer interface connected to the syringe barrel. When the syringe is injected, there will be residual drug liquid in the cavity of the needle seat. The generation of residual liquid not only wastes resources and pollutes the environment, but also makes the injection volume for the patient insufficient, affecting the therapeutic effect of the drug. Utility Model Content
[0004] The purpose of the utility model is to provide a novel residue-free syringe in view of the defects of the prior art, so as to solve the problem that the existing syringe and the injection needle body are connected through a needle seat, and the rear port of the needle seat is a Luer interface connected to the syringe barrel. When the syringe is injected, there will be residual liquid in the cavity of the needle seat. The generation of residual liquid not only wastes resources and pollutes the environment, but also makes the injection amount for the patient insufficient, affecting the therapeutic effect of the drug.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A novel no-residue syringe comprises a syringe, a core rod is arranged in the syringe, a needle seat is screwed at the front end of the syringe, an injection needle tube is installed in the needle seat, a fixed baffle in a hollow cylindrical structure is arranged at the front end of the syringe, an infusion tube with a top extending to the outside of the fixed baffle is coaxially arranged on the end surface of the syringe in the fixed baffle, an infusion cavity connected to the inner cavity of the syringe is opened through the infusion tube, and a liquid guide tube connected to the inner cavity of the infusion tube is extended from the front end of the infusion tube;
[0007] The needle seat includes a threaded fixing end, a transfusion tube connecting end is provided at the top of the threaded fixing end, a transfusion tube connecting cavity capable of being plugged into the transfusion tube is provided on the bottom end surface of the transfusion tube connecting end, a catheter connecting end is provided at one end of the transfusion tube connecting end away from the threaded fixing end, a catheter connecting cavity matching with the catheter tube is provided in the catheter connecting end, and both ends of the catheter connecting cavity are respectively connected with the inner cavity of the injection needle tube and the transfusion tube connecting cavity.
[0008] As a preferred technical solution of the utility model, a fixing groove capable of being plugged into the threaded fixing end is formed between the outer side of the infusion tube and the inner side of the fixed baffle.
[0009] As a preferred technical solution of the utility model, blocking pieces are symmetrically provided on both sides of the connecting end of the liquid guiding tube to facilitate the installation of the needle seat on the syringe.
[0010] As a preferred technical solution of the utility model, the needle seat and the syringe are both injection molded by medical polypropylene material.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] The utility model improves the tightness of the connection between the needle seat and the syringe by setting the liquid guide tube. When the needle seat is connected with the syringe, the liquid guide tube on the syringe is inserted into the liquid guide tube connecting cavity in the needle seat, so that the medicine in the syringe can be directly and accurately transported to the injection needle tube cavity, avoiding the medicine liquid remaining in the needle seat during the absorption process or the injection process, resulting in insufficient injection of medicine liquid to the patient, affecting the treatment effect, causing pollution and waste. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the structure of the utility model;
[0014] Figure 2 It is a structural schematic diagram of the syringe of the utility model;
[0015] Figure 3 It is a structural schematic diagram of the needle seat of the utility model;
[0016] Figure 4 It is a cross-sectional view of the needle seat of the utility model;
[0017] In the figure: 1. syringe; 11. infusion tube; 12. catheter; 13. fixed baffle; 14. fixed groove; 2. needle seat; 21. threaded fixed end; 22. infusion tube connecting end; 23. catheter connecting end; 24. baffle; 25. infusion tube connecting cavity; 26. catheter connecting cavity. DETAILED DESCRIPTION
[0018] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.
[0019] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0020] Example
[0021] Combination Figure 1-4 As shown, a new type of residue-free syringe includes a syringe 1, a core rod is arranged in the syringe 1, a needle seat 2 is screwed on the front end of the syringe 1, a plastic injection needle is installed in the needle seat 2, and the needle seat 2 and the syringe 1 are both injection molded by medical polypropylene material. The polypropylene material is non-toxic, odorless and tasteless, and can effectively avoid reaction with the drug solution.
[0022] like Figure 2 The syringe 1 shown in the figure has a fixed baffle 13 in a hollow cylindrical structure at the front end of the syringe 1, and an infusion tube 11 with a top extending to the outside of the fixed baffle 13 is coaxially provided on the end surface of the syringe 1 in the fixed baffle 13. An infusion cavity connected with the inner cavity of the syringe 1 is penetrated in the infusion tube 11, and a catheter 12 whose inner cavity is connected with the infusion tube 11 is extended from the front end of the infusion tube 11. The tightness of the connection between the needle seat 2 and the syringe 1 is improved by the provision of the catheter 12. When the needle seat 2 is connected to the syringe 1, the catheter 12 on the syringe 1 is inserted into the catheter connecting cavity 26 in the needle seat 2, so that the drug liquid in the syringe 1 can be directly and accurately transported to the injection needle tube cavity, avoiding the drug liquid remaining in the needle seat 2 during the absorption process or the injection process, and at the same time resulting in insufficient injection of drug liquid to the patient, affecting the treatment effect, causing pollution and waste.
[0023] Among them, a fixing groove 14 for the threaded fixing end 21 to be inserted is formed between the outer side of the infusion tube 11 and the inner side of the fixed baffle 13, and the inner wall of the fixed baffle 13 is provided with an internal thread that matches the threaded fixing end 21, thereby facilitating the installation and disassembly of the needle seat 2 and the syringe 1.
[0024] Combination Figure 3-4The needle seat 2 shown in the figure comprises a threaded fixing end 21 with an external thread, a transfusion tube connecting end 25 is provided on the top of the threaded fixing end 21, a transfusion tube connecting cavity 25 capable of being plugged into the transfusion tube 11 is provided on the bottom end surface of the transfusion tube connecting end 25, a catheter connecting end 23 is provided at one end of the transfusion tube connecting end 25 away from the threaded fixing end 21, a catheter connecting cavity 26 which matches the catheter 12 is provided in the catheter connecting end 23, the catheter connecting cavity 26 and the catheter 11 are matched without clearance, and the two ends of the catheter connecting cavity 26 are respectively connected with the inner cavity of the injection needle tube and the transfusion tube connecting cavity 25, so that the liquid medicine in the syringe 1 can be directly and accurately transported to the lumen of the injection needle tube, avoiding the liquid medicine remaining in the needle seat 2 during the absorption process or the injection process, resulting in insufficient injection of liquid medicine to the patient, affecting the treatment effect, causing pollution and waste.
[0025] Wherein, baffles 24 are symmetrically arranged on both sides of the catheter connection end 26 to facilitate the installation of the needle seat 2 on the syringe 1, and the baffles 24 are fan-shaped structures, and the outer side surface of the baffles 24 is an arc surface.
[0026] The working principle of the utility model is:
[0027] When the staff draws the medicine liquid, the medicine liquid is drawn through the injection needle tube and flows into the inner cavity of the syringe 1 along the liquid guide tube 12 inserted in the liquid guide tube connecting cavity 26. At the same time, when injecting the medicine liquid, the medicine liquid in the inner cavity of the syringe 1 is directly and accurately transported to the lumen of the injection needle tube through the liquid guide tube 12, so as to perform the injection operation, thereby avoiding the medicine liquid remaining in the needle seat 2 during the absorption process or the injection process, resulting in insufficient injection amount of the patient's medicine liquid, affecting the treatment effect, and causing pollution and waste.
[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0029] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.
Claims
1. A novel no-residue syringe, comprising a syringe (1), wherein a core rod is arranged in the syringe (1), a needle seat (2) is screwed to the front end of the syringe (1), and an injection needle tube is installed in the needle seat (2), characterized in that: The front end of the syringe (1) is provided with a fixed baffle (13) in a hollow cylindrical structure, and an infusion tube (11) is coaxially provided on the end surface of the syringe (1) inside the fixed baffle (13), the top of which extends to the outside of the fixed baffle (13), and an infusion cavity connected to the inner cavity of the syringe (1) is opened through the infusion tube (11), and a catheter (12) is extended from the front end of the infusion tube (11), the inner cavity of which is connected to the infusion tube (11); The needle seat (2) comprises a threaded fixing end (21), a top of the threaded fixing end (21) is provided with an infusion tube connection end (22), a bottom end surface of the infusion tube connection end (22) is provided with an infusion tube connection cavity (25) capable of being plugged into an infusion tube (11), an end of the infusion tube connection end (22) away from the threaded fixing end (21) is provided with a catheter connection end (23), a catheter connection cavity (26) matched with the catheter tube (12) is provided in the catheter connection end (23), and two ends of the catheter connection cavity (26) are respectively connected to the inner cavity of the injection needle tube and the infusion tube connection cavity (25).
2. A novel no-residue syringe according to claim 1, characterized in that: A fixing groove (14) capable of receiving a threaded fixing end (21) is formed between the outer side of the infusion tube (11) and the inner side of the fixing baffle (13).
3. A novel no-residue syringe according to claim 1, characterized in that: Blocking pieces (24) are symmetrically provided on both sides of the catheter connection end (23) for facilitating the installation of the needle seat (2) on the syringe (1).
4. A novel no-residue syringe according to claim 1, characterized in that: The needle seat (2) and the syringe (1) are both injection-molded using medical polypropylene material.