Development history of injection pen

History of pen development

Injection pen is a new type of self-injection device derived from the traditional disposable syringe. Its development and birth went through three stages: traditional syringe (bottle + syringe), durable injection system (pen refill + durable injection pen), and pre-filled injection system (pen refill and injection pen combined).

In the early 1980s, the glass material gradually evolved into plastic material. In the late 1980s, disposable plastic syringe technology was introduced in China and gradually replaced the glass syringe. Disposable syringes require professional nursing staff to inject drugs into patients, which has certain limitations in treatment. However, due to its advantages of simple structure, convenient operation and low cost, it is still widely used in drug injection, liquid transfer, scientific research and other fields.

In the second stage, the durable injection system was started in 1985. The convenient and repeatable injection device, Novo Pen, was launched at the same time, and other products such as needle and refill of injection pen were used together with it.

The second stage In the late 1980s, Novo developed a new generation of injection device -- pre-filled injection pen, which ushered the injection device into a new stage. The pre-filled injection pen is a product combining the injection pen and the pen refill, which has anti-damage and anti-counterfeiting properties and belongs to disposable medical devices, so it is also called disposable injection pen. Its most prominent advantages are "one medicine, one device, special medicine, special amount, use up immediately throw."

Development status of injection pen

Compared with the injection method of traditional syringe, the injection pen has many advantages, such as simple operation, convenient, accurate dose, light pain, etc. Its injection method meets the needs of self-management in the field of chronic disease development. Since the birth of the injection pen, various pharmaceutical giants and design companies have devoted themselves to the research of drug self-injection devices, and made innovations on the basis of the first generation of injection pens. A series of new products have been developed. The improvement and optimization of the injection pen are mainly reflected in the parts of the pen cartridge cartridge and the injection regulating mechanism. The improvement direction of the pen cartridge cartridge cartridge is to make the replacement of the pen cartridge more convenient and the storage and release of the drug more convenient. The improvement direction of the adjusting mechanism is reflected in improving the injection accuracy, simplifying the structure and facilitating the operation of patients. The essential purpose of all the improvements is to make the operation simpler for patients, avoid the adverse effects of misoperation and improve the user experience.

At present, the existing injection pen products on the market can be classified into two ways: according to whether the drug is replaceable, they can be divided into repeatable injection pens and disposable injection pens. According to its structure principle (energy transfer mode), it can be divided into mechanical injection pen and electronic intelligent injection pen.