Sterile dispensing device and dispensing method using sterile dispensing device

Abstract

The invention discloses a sterile dispensing device and a dispensing method using the sterile dispensing device. A puncture needle of a medicament bottle in the sterile dispensing device is provided with a gas channel, an air port I and an air port II, wherein the air port I and the air port II are communicated with the gas channel, a peristaltic pump is not needed to be used, a liquid container is not extruded, and the liquid container cannot be limited by the material of the liquid container and can be used for plastic or glass containers when the sterile dispensing device is in use. The sterile dispensing device provided by the invention is simple in structure, convenient to use, faster in dispensing speed, and convenient to popularize and use.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an aseptic dispensing device and a dispensing method using the aseptic dispensing device. Background technique [0002] The dispensing method to input liquid in existing medical treatment at home and abroad generally is to adopt disposable syringe to carry out dispensing, and this method has following defect: 1. The process is loaded down with trivial details, need to go through the following steps: suck liquid with syringe, inject medicine bottle (if Positive pressure in the medicine bottle needs to be exhausted), pull out the syringe, shake the medicine bottle until the medicine powder is dissolved, withdraw the medicine solution with the syringe (if negative pressure is generated in the medicine bottle, air needs to be injected), inject the medicine liquid into the liquid bottle ; 2. Easy to pollute: During the dispensing process, the needle of the syringe is repeatedl...

AI Technical Summary

Problems solved by technology

[0002] The dispensing method to input liquid in existing medical treatment at home and abroad generally is to adopt disposable syringe to carry out dispensing, and this method has following defect: 1. The process is loaded down with trivial details, need to go through the following steps: suck liquid with syringe, inject medicine bottle (if Positive pressure in the medicine bottle needs to be exhausted), pull out the syringe, shake the medicine bottle until the medicine powder is dissolved, withdraw the medicine solution with the syringe (if negative pressure is generated in the medicine bottle, air needs to be injected), inject the medicine liquid into the liquid bottle ; 2. Easy to pollute: During the dispensing process, the needle of the syringe is repeatedly exposed to the air and punctures the stoppers of the medicine bottle and the liquid bottle, and the chance of the liquid being polluted by the injection of external gas and the lubricant (silicon oil) added to the syringe itself increases; 3. Generate a lot of medical waste

[0003] The published patent is a dispensing method for powder injection and its dispensing device (application number: 201110231119.6, application date: 2011-08-12). This dispensing method effectively overcomes the shortcomings of the syringe dispensing method in the prior art, and It is suitable for glass or other types of liquid bottles, but the realization of this dispensing method must be driven by a special peristaltic pump. At the same time, the dispensing device includes peristaltic hoses and connecting nozzles. For some dispensing needs, the structure is relatively complicated

[0004] A simple (dual-channel) dispensing method and its dispensing device are disclosed in the patent (application number: 201210068276.4, application date: 2012-03-15), which does not require special peristaltic pump drive, omits peristaltic hoses and connecting nozzles, etc. It can be simplified and the cost is low; however, the dispensing device cannot be applied to glass or other types of hard liquid bottles, and the scope of application is narrow

[0005] The disclosed patent is a simple single-channel dispensing device (application number: 201220240075.3, application date: 2012-05-26). Although the structure is simple and the cost is low, its dispensing efficiency is low, and it cannot be applied to glass or other All kinds of hard liquid bottles, the scope of application is narrow

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