Pressure reduction injection syringe capable of exhausting
A technology for syringes and injection barrels, which is applied in the direction of syringes, hypodermic injection devices, infusion sets, etc., can solve problems such as loss, splashing of medicinal liquid, and complicated operations, and achieve the effects of simple and reasonable structure, easy popularization and application, and significant beneficial effects
Inactive Publication Date: 2015-05-13
SHANDONG UNIV QILU HOSPITAL
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Problems solved by technology
The occurrence of the above two situations will cause the liquid medicine to splash and lose
[0003] Since a large amount of gas is produced during the process of dissolving cefotiam, if 10ml of normal saline is injected into the bottle to dissolve, the volume of dissolved gas and liquid will exceed 20ml. It becomes complicated and greatly increases the chance of contaminating the liquid medicine
Method used
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[0012] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0013] Such as figure 1 As shown, a schematic structural diagram of the ventable decompression syringe of the present invention is provided, which includes a syringe 1, a piston 2, a push rod 3, a needle seat 5, an injection needle 6, an exhaust pipe 7, a sealing cap 9, Outer ear plate 10; the injection barrel 1 shown is cylindrical, and the inside of the injection barrel 1 is a cylindrical injection cavity 4, the piston 2 and the push rod 3 are located in the injection cavity 4, and the piston 2 is fixed on the top of the push rod 3. Utilize the push rod 3 to drive the piston 3 to move down and up in the injection chamber 4, and the medicinal liquid can be inhaled and pushed out respectively. The two outer ear plates 10 shown are respectively arranged on the two ends of the outer wall of the bottom of the injection barrel 1 , and the user can push the...
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The invention provides a pressure reduction injection syringe capable of exhausting. The pressure reduction injection syringe comprises an injection cylinder, a piston, a push rod and an injection needle. The interior of the injection cylinder is provided with an injection cavity, and one side of the top end of the injection cylinder is provided with a syringe needle base communicated with the injection cavity. The pressure reduction injection syringe is characterized in that the other side of the top end of the injection cylinder is provided with an exhaust pipe, the interior of the exhaust pipe is provided with an exhaust channel for being communicated with the injection cavity and the outside, and the exhaust pipe is provided with a sealing cap for sealing the exhaust channel. According to the pressure reduction injection syringe, in the dissolving process of drug such as cefotiam which generates gas easily, the gas generated in the drug dissolving process can be discharged just by loosening the sealing cap, and the situation that in a previous drug dissolving process, a piston is pushed out or drug is scattered out from a needle opening is avoided; after the gas generated in the drug dissolving process is discharged, the sealing cap is screwed tightly, and normal drug infusion can be conducted; the pressure reduction injection syringe is reasonable in structure, remarkable in beneficial effect and convenient to apply and popularize.
Description
technical field [0001] The present invention relates to an exhaustable decompression syringe, and more specifically relates to an exhaustable decompression syringe which can smoothly discharge the gas generated when medicine is dissolved. Background technique [0002] Cefotaxime (commonly known as cefotiam) is a cephalosporin antibiotic commonly used in clinical practice. During the dissolution process of its powder and other gas-producing drugs, a large amount of gas will be generated, which will make the pressure in the bottle too high. Use ordinary 20ml for one-time use. For sterile drug-dissolving syringes, the plunger of the syringe will be pushed out of the syringe by strong air pressure, or when the needle is pulled out, the liquid medicine will splash out from the eye of the bottle stopper. Above-mentioned two kinds of situations take place, all cause medicinal liquid splash and loss. [0003] Since a large amount of gas is produced during the process of dissolving ...
Claims
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Login to View More IPC IPC(8): A61M5/178A61M5/36
CPCA61M5/178A61M5/3134A61M5/36
Inventor 王力
Owner SHANDONG UNIV QILU HOSPITAL