Sealing combined cover gasket capable of being used for puncture sampling and preparation method thereof

Abstract

The invention discloses a sealing combined cover gasket capable of being used for puncture sampling. The sealing combined cover gasket capable of being used for puncture sampling comprises a cover body and a sealing gasket, wherein the bottom of the cover body is flat; a cap hole is formed in the center of the cover body; an annular face is formed on the periphery of the cap hole; and the sealing gasket is trapezoidal. A method for preparing the sealing combined cover gasket comprises the following steps of: (1) carrying out surface treatment: carrying out ultraviolet light irradiation treatment on the annular surface of the inner bottom of the cover body and an annular area, corresponding to the annular surface of the inner bottom of the cover body, on the upper bottom of the sealing gasket; (2) gluing: gluing on a middle annular line of the annular surface of the inner bottom of the cover body; (3) assembling and holding pressure: assembling the trapezoidal upper bottom surface of the sealing gasket towards the inner bottom of the cover body, and continuously jacking the sealing gasket; and (4) standing: standing and sealing the combined cover gasket at normal temperature, normal pressure and normal humidity. The sealing combined cover gasket prepared through the method provided by the invention is high in cleanliness and good in sealing performance and stability, the sealing gasket can be prevented from falling off during puncture sampling, automatic production can be achieved through the preparation method, the preparation process is simple and convenient, and the production efficiency is high.

Description

technical field [0001] The invention relates to the technical field of medical and scientific chromatographic analysis consumables, in particular to a sealing combination cover gasket which can be used for puncture sampling and a preparation method thereof. Background technique [0002] In the field of medical and scientific chromatographic analysis, sample bottles are widely used as airtight containers. Sample bottles are generally sealed with a sealing cap, and a cap hole is usually provided in the sealing cap. The cap hole is sealed by a gasket, and the cap hole prevents the sample While contaminated or lost, the needle is allowed to pass through the spacer for sample insertion or withdrawal. [0003] In the application of conventional medical injections and pharmaceutical oral liquids, the content in the bottle is often a substance that can be accepted and absorbed by the human body. Its corrosiveness and chemical activity are low, and it can be in direct contact with th...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is the technical defects in the prior art that the connection between the gasket and the sealing cap is unstable, the needle penetration is difficult, and the adhesive of the organic solvent is easy to remain. The invention and the preparation method thereof can improve the cleanliness of the sealing combined lid gasket, ensure the stability of the lid body, the sealing gasket and the sealed container, improve the production efficiency of the sealing combined lid gasket, and ensure the puncture performance at the same time