Needle-free syringe joint
A needle-free injection and syringe technology, applied in the field of medical devices, can solve problems such as unhygienic, inconvenient assembly, etc., and achieve the effect of convenient connection, convenient assembly and disassembly, and smooth connection
Pending Publication Date: 2018-08-24
嘉兴玖海医疗科技有限公司
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Problems solved by technology
[0003] The above-mentioned elastic body and the moving core are two separate parts, which are inconvenient to assemble, and the injection liquid must flow through the moving core during injection, and the moving core is exposed outside, which is unhygienic
Method used
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[0020] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.
[0021] like figure 1 , figure 2 As shown, the needle-free injection joint includes a syringe joint 1, a tapered elastic sealing sleeve 2, and an infusion tube joint 3. The outer front end of the syringe joint 1 has an external thread 11 threadedly connected with the syringe, and the inner side of the tail end of the syringe joint 1 It has an annular clamping groove 12 clamped on the infusion tube connector 3 . The elastic sealing sleeve 2 is arranged in the syringe connector 1 , the front end of the infusion tube connector 3 has a conical head 31 protruding into the elastic sealing sleeve 2 , and the outer peripheral surface of the elastic sealing sleeve 2 has a bellows-shaped telescopic portion 21 . The tail end of the...
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The invention provides a needle-free syringe joint. The needle-free syringe joint comprises a syringe joint, a tapered elastic sealing sleeve, and a transfusion pipe joint, the front end of the syringe joint is provided with an external thread connected with the syringe thread, the inner side of the tail end of the syringe joint is provided with an annular clamping groove which is clamped on the transfusion pipe joint, the elastic sealing sleeve is arranged in the syringe joint, the front end of the transfusion pipe joint is provided with a conical head which extends into the elastic sealing sleeve, the outer peripheral surface of the elastic sealing sleeve is provided with a bellows-shaped telescopic part, the tail end of the transfusion pipe joint is provided with an extension connectingpart which extends outwards for the transfusion pipe joint to be sleeved, the transfusion pipe joint is provided with a central infusion channel, at least two side holes communicated with the centraltransfusion channel are formed on the outer peripheral surface of the front end of the conical head, and the side holes are blocked by the inner wall of the elastic sealing sleeve when the elastic sealing sleeve is not subjected to external force, the tail end of the transfusion pipe joint is provided with an extension connecting part which can be directly inserted into the transfusion pipe jointwhich is convenient to connect; the transfusion pipe joint is blocked by the elastic sealing sleeve when the injection is free of flow which is relatively sanitary.
Description
technical field [0001] The invention belongs to the technical field of medical devices and relates to a needle-free injection joint. Background technique [0002] At present, the medical needleless connectors on the market have many spare parts and are inconvenient to install and disassemble. For example, the Chinese invention patent with the patent number of 200820122640.X discloses a positive pressure joint for needle-free infusion, including a hollow shell inside, a connecting joint with a hollow lumen, a movable core with a hollow cavity, Elastomer, the right end of the connecting joint is provided with an annular groove, which is connected with the shell; the movable core is set in the annular groove, the outer diameter of the end of the movable core close to the connecting joint is larger than that of the end far away, and the movable core is an arc surface from the above-mentioned end to the other end , when in the original position, the arc surface and the end away ...
Claims
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IPC IPC(8): A61M5/14
CPCA61M5/14
Inventor 匡巳平
Owner 嘉兴玖海医疗科技有限公司