Air pressure liquid dropper and manufacturing method thereof

Abstract

The invention discloses an air pressure liquid dropper and a manufacturing method thereof. The air pressure liquid dropper comprises a dropper body with a hollow cavity, the upper end of the dropper body is connected with an upper end plug (1) via an upper joint (2), an air inlet (8) formed at the top end of the hollow cavity is sealed by the upper end plug (1), a liquid storage portion (3) consisting of a liquid medicine column is arranged in the upper portion of the hollow cavity in the dropper body, the lower end of the liquid storage portion (3) is an isolating portion (4) consisting of an air column, and a liquid seal portion (6) consisting of a sealing liquid column is arranged at the lower end of the isolating portion (4). The air pressure liquid dropper can simultaneously resolve the problem that liquid medicine is mixed with sealing liquid and is polluted in storage and use processes. In addition, the manufacturing method is more convenient and brings convenience for industrial application and popularization.

Description

technical field The invention relates to an air pressure liquid dropper and a preparation method thereof. Background technique In the prior art, it is necessary to smear liquid medicine (such as disinfectant water, disinfectant alcohol, medicinal liquid, etc.) and reagents on the local area. Usually, a cotton swab is needed when using it. After soaking the cotton swab in the liquid medicinal water, Then carry out the coating treatment. Because the cotton swab itself does not have liquid medicine, it needs to cooperate with liquid medicine to bring into play its effect when in use, which brings great inconvenience to the user. On this basis, the Chinese patent with the utility model patent No. 00249772.7 proposes a cotton swab for instant application, including a cotton swab stick and a cotton head fixed at one end of the cotton swab stick. One end of the hollow rod for fixing the cotton head is provided with an oil seal for sealing the liquid medicine, and the other end i...

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Problems solved by technology

Although this structure solves the problem of the cotton swab storing the liquid medicine, when the end plug is opened for use, since the oil seal is located at the lower end of the liquid medicine, the oil seal will first contact the cotton head, and after the oil seal is completely wetted to the cotton head, the liquid medicine will On the one hand, the mixing of the oil seal and the liquid medicine will affect the use effect of the liquid medicine; on the other hand, it is necessary to solve the technical problem that the oil seal and the liquid medicine do not dissolve and interfere with each other when preparing the product

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