Syringe capable of reducing liquid medicine waste
A technology of syringes and liquid medicines, applied in the field of syringes, can solve problems such as medical accidents, and achieve the effect of improving the dissolution effect
Pending Publication Date: 2020-07-17
陆明京
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Problems solved by technology
[0004] The purpose of the present invention is to solve the problem that the syringe in the prior art needs to retain part of the liquid during injection to avoid injecting air into the human body and causing medical accidents, and proposes a syringe that can reduce the waste of medicinal liquid
Method used
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Embodiment
[0020] refer to Figure 1-2 , a syringe that can reduce the waste of liquid medicine, including a cylinder 1 and a piston 2, the top of the piston 2 is fixedly connected with a screw 3, the screw 3 penetrates the top wall of the cylinder 1 and is fixedly connected with a push plate 4 outside the cylinder 1 , the inner wall of the cylinder 1 is rotatably connected with a sleeve 5, the sleeve 5 is threadedly connected with the screw rod 3, the cylinder 1 is slidably connected with a buoyancy plug 7, and the bottom of the buoyancy plug 7 is provided with a liquid outlet 9 opened in the cylinder 1. The liquid port 9 is sealingly connected with the injection chamber 8 and the injection chamber 8 is connected with the needle tube.
[0021] The side wall of the cylinder body 1 is located above the buoyancy plug 5 and is connected with an air inlet, and the side wall of the cylinder body 1 is provided with a liquid inlet channel 10 communicating with the liquid outlet 9, and the liqui...
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The invention discloses a syringe capable of reducing liquid medicine waste. The syringe comprises a cylinder body and a piston, wherein the top of the piston is fixedly connected to a screw rod, thescrew rod penetrates through the top wall of the cylinder body and is fixedly connected to a push plate outside the cylinder body, the inner wall of the cylinder body is rotationally connected to a sleeve, the sleeve is in threaded connection with the screw rod, the cylinder body is in sliding connection with a buoyancy plug, a liquid outlet which is arranged in the cylinder body is arranged belowthe buoyancy plug, the liquid outlet is in sealing connection with an injection cavity, the injection cavity is connected to a needle tube, the side wall of the cylinder body communicates with an airinlet which is located at the side wall above the buoyancy plug, and the side wall of the cylinder body is provided with a liquid inlet channel communicating with the liquid outlet. The syringe has the advantages that: through the characteristic that a heat-shrinkable material with the density smaller than that of water contracts when being heated, gas and liquid are automatically separated, thegas is positioned above the buoyancy plug, and the liquid medicine is positioned below the buoyancy plug, so that the liquid medicine can be completely output during infusion, and the problem of air output can be avoided while waste is avoided.
Description
technical field [0001] The invention relates to the technical field of kitchen facilities, in particular to a syringe that can reduce the waste of medicinal liquid. Background technique [0002] A syringe is a common medical device, mainly used for extracting or injecting gas or liquid with a needle. The syringe can also be used for medical equipment, containers, and scientific instruments such as some chromatography to inject through a rubber septum. When injecting, it takes time Avoid air entering the body, so as not to cause air embolism and affect health. [0003] In the operation specification of the prior art, when using a syringe, in order to avoid injecting air into the human body, when the medical personnel use the syringe to inject, they often leave part of the liquid when pushing the liquid medicine, thereby avoiding air injection. Part of the liquid medicine will also be pushed out before injection to avoid residual air in the needle tube, so it will cause waste...
Claims
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IPC IPC(8): A61M5/178A61M5/31A61M5/315A61M5/44A61M5/38
CPCA61M5/178A61M5/3129A61M5/31511A61M5/38A61M5/445A61M2205/36
Inventor 陆明京
Owner 陆明京