Automatic medicine liquid adding injection bottle device and production device and assembly production method thereof

Abstract

The invention relates to the technical field of medical instruments, and provides an automatic medicine liquid adding injection bottle device and a production device and assembly production method thereof. The injection bottle device mainly comprises a liquid storage bottle, an injection needle, an extrusion piston, a funnel-shaped top cover and a sealing bottom cover; the injection needle is in adouble-needle form, the liquid storage bottle is communicated with an infusion bottle or an infusion bag through bidirectional piercing of the two ends of the injection needle, a control device is arranged to control the piercing sequence of the upper and lower ends of the injection needle, the operation is extremely simple, and high-pressure gas is arranged at the portion, in the lower portion of the extrusion piston, in a cavity in the liquid storage bottle to form a pressure difference to automatically push and inject medicine liquid. In addition, the production device and assembly production method matched with the injection bottle device is provided.

Description

Technical field [0001] The invention and the technical field of medical devices, in particular, relate to a device for automatically adding liquid medicine to an injection bottle, its production device and an assembly production method. Background technique [0002] Intravenous injection therapy is the most common medical implementation method. It is easy to quickly increase the concentration of drugs in the blood to achieve the therapeutic effect, and can maintain the constant concentration required for the curative effect. Drugs that stimulate muscles and subcutaneous tissues can also be passed Intravenous administration has a wide range of applicability. It can quickly replenish the lost fluid or blood of the body and maintain the body fluid balance. Intravenous injections usually use more complicated drugs and require multiple drugs to be used at the same time to achieve curative effects. Usually the doctor will follow the patient Choose appropriate infusion drugs for the dis...

AI Technical Summary

Problems solved by technology

[0002] Intravenous injection therapy is the most common method of medical practice. It is easy to quickly increase the concentration of drugs in the blood to achieve therapeutic effects, and can maintain a constant concentration required for curative effect. Drugs that irritate muscles and subcutaneous tissue can also be passed through Intravenous administration has a wide range of applicability and can quickly replenish the body’s lost fluid or blood to maintain body fluid balance. Usually, the drugs used in intravenous injection are relatively complicated and require multiple drugs to be used together to achieve the curative effect. Choose the appropriate infusion medicine for the disease. Generally, the infusion bottle or infusion bag produced by the pharmaceutical factory will have a drug ratio according to the common disease, which can be directly used for infusion treatment. However, patients often have multiple syndromes or special conditions. The drug ratio in the finished infusion bottle or infusion bag can’t fully adapt to the symptoms and needs multiple different infusions, or the doctor can inject other medicinal liquids into the infusion bottle or infusion bag according to the symptoms to adjust the drug ratio and improve the curative effect However, there is a lack of such devices for adding liquid medicine to infusion bottles or infusion bags. The general practice is to extract the liquid medicine in the small glass medicine bottle through a syringe, and then insert it into the infusion bottle or infusion bag for infusion. It is cumbersome, and the injection needle is exposed many times, which is easy to cause pollution

[0003] The addition of medicinal liquid in the infusion bottle or infusion bag can be completed through automatic injection, which simplifies the operation process and reduces the exposure of the injection needle. In the prior art, there are many ways to realize it. The syringe has a special design on the injection needle, and the injection hole on it is closed with a rubber plug, which is easy to be removed. During the insertion of the injection needle, the plug is removed, and the liquid medicine can be injected through the injection needle. This method is easy to implement and is suitable for one-time use, but the plug is easy to remove in this way, which is unstable, easily causes the leakage of the liquid medicine, and the control of the injection and measurement of the liquid medicine is not accurate

[0004] The Chinese patent No. 2007200491441 discloses a fully automatic syringe, which uses a needle on both sides to control the injection of the liquid medicine. It has a simple structure and is suitable for one-time use in large quantities. part, and then operate, and the back needle of the double-sided needle is first pierced into the high-pressure liquid medicine bottle, and then pierced into the patient's skin. Afterwards, the liquid medicine will gush out quickly, but the needle at the other end has not pierced the required injection site in time, resulting in waste of liquid medicine and a lot of pollution, making it difficult to clean up later

[0005] The international patent with authorized notification number CN102065937B discloses a reusable automatic injector. Some components of the injector are for one-time use and also adopt the form of two needles. One end of the needle is used to suck the liquid medicine, and the other end of the needle is used for injection. , the controllability of the injection process is high, and the liquid medicine in the medicine bottle needs to be pumped out before injection, but the operation steps are many, the structure is complicated, and the production cost is high

[0006] Similarly, an automatic injection syringe with a ventilation device is disclosed in the international patent with the authorized notification number CN101282751B. Double-headed form, when used, push and penetrate the medicine box and subcutaneous tissue in turn, but still, it is necessary to penetrate the medicine box first and then continue to push and then penetrate the subcutaneous tissue. After first piercing the medicine box and continuing to push, it will cause pressure in the medicine box Cause liquid medicine to leak, although there is no gushing phenomenon in the form of a high-pressure medicine bottle, if the other end of the needle does not pierce the subcutaneous tissue in time or fails to penetrate, the liquid medicine will leak and pollute from the other end of the needle, and the structure of the product is complex high production cost

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