Pre-filling cartridge bottle

Abstract

The invention discloses a pre-filling cartridge bottle, and belongs to the technical field of medical instruments. The pre-filling cartridge bottle comprises a bottle body, a push rod and a dose plug, wherein a piston is arranged at the tail end of the bottle body; the push rod drives the piston to move; the dose plug is arranged outside the push rod in a sleeving mode, and the outer diameter of the dose plug is larger than the inner diameter of the bottle body, so that the side wall of the dose plug can be attached to the end of the bottle body, and therefore the push rod can be prevented from driving the piston to move. The pre-filling cartridge bottle has the beneficial effects that the pre-filling cartridge bottle is simple in structure, low in production cost, convenient to use and convenient to master the using method and store at the low temperature for long time; and a patient can quickly, conveniently and simply inject by self, and can adjust the injection dose according to the demands of the patient, so that the transfer and loss costs of common injections are saved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a prefilled cartridge bottle. Background technique [0002] Cartridge bottles are common medical bottles, which are mainly used in genetic engineering, bioengineering, insulin and other fields; [0003] The main structure of the traditional cartridge bottle, the end of the bottle body is equipped with a sealing rubber plug, and the other end is sealed with an aluminum cap. The product is filled in the bottle body, and the cartridge bottle is placed in a reusable injection pen to adjust the dosage. Injection, however, the cartridge needs to be used with the help of an injection pen, and the main structure of the injection pen includes a pen cap, a cartridge holder, a screw push rod, a pen body, and an electronic device installed on the pen body, wherein the internal structure of the pen body is complex, The operation steps during injection are cumbersome, especially for e...

AI Technical Summary

Problems solved by technology

[0003] The main structure of the traditional cartridge bottle, the end of the bottle body is equipped with a sealing rubber plug, and the other end is sealed with an aluminum cap. The product is filled in the bottle body, and the cartridge bottle is placed in a reusable injection pen to adjust the dosage. Injection, however, the cartridge needs to be used with the help of an injection pen, and the main structure of the injection pen includes a pen cap, a cartridge holder, a screw push rod, a pen body, and an electronic device installed on the pen body, wherein the internal structure of the pen body is complex, The operation steps during injection are cumbersome, especially for elderly people who inject themselves, there is a risk of operational errors;

[0004] In the existing technology, there are also related syringes instead of cartridges, such as prefilled syringes, the product is filled in the syringe, and the patient can inject it by himself, making the use faster and easier, without using a syringe to transfer from the bottle, which can save 10 % to 20% of raw materials, however, prefilled syringes are used for one-time injection, and cannot be injected according to the required dosage of the product used. Therefore, whether it is a cartridge or a prefilled syringe, especially for biological products, there are many large limitations of use

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