The syringe can be made of plastic or glass
If people first contact with injections during their childhood, they will be crying when the pointed needles pierce the flesh. Therefore, they are also the most modern medical tools that are not welcome. However, if there is no syringe, there will be no intravenous infusion, and many people will die. Don't underestimate this little syringe, in fact it has a long history.
The syringe consists of a syringe with a small hole at the front end and a matching piston rod. Syringes are used to inject a small amount of liquid into or out of areas that are otherwise inaccessible. When the core rod is pulled out, liquid or gas is sucked from the small hole at the front end of the barrel, and the liquid or gas is squeezed out when the core rod is pushed in. This process of drawing or injecting a gas or a liquid with a syringe and a needle is called an injection.
As early as the invention of the syringe, doctors have already implemented treatments for infusion, but because of the use of tools in nature, the patient has been infected. It is generally believed that the originator of the use of syringes for medical treatment was the Scottish doctor Alexander Wood and the French Charles Prasús, who jointly worked together to achieve this process in 1853. Alexander used this new tool to subcutaneously inject morphine into patients to treat sleep disorders. However, unfortunately, Alexander's wife died because of her own injection of morphine. Subsequently, Alexander improved the syringe: the scale was added to the needle and the needle was finer. This series of improvements has also attracted the attention of many doctors and made the syringe widely used.
There are also views that surgeons in Iraq and Egypt developed a similar syringe using a hollow glass tube in the 9th century to absorb cataracts in the patient's eye. This method is still in use until at least 1230, at 20 This method has been improved in the century.
The syringe can be made of plastic or glass, and the glass syringe can be sterilized with an autoclave. In 1956, New Zealand doctor Colin Murdoch invented a disposable plastic syringe that not only adheres to the advantages of transparency and inertness of traditional glass syringes, but also has the characteristics of being not easily damaged, easy to transport, low in cost, easy to recycle, etc., and safety is Glass syringes are unmatched, and it greatly reduces the risk of blood-borne diseases. Since then, the new syringes have begun to be scaled up and have become the first choice for doctors.
With the development of Syringe Mould technology, needle-free syringes have emerged. Instead of needles, such syringes use a high-speed, high-pressure jet to inject drugs through the skin. This approach can significantly reduce accidents that doctors and nurses accidentally get stuck with when using a needle syringe. In addition, it also helps some patients to avoid the discomfort caused by regular injections of drugs such as insulin. The needle-free injection device allows these patients to receive drug injections. At the same time, the drug-free injection in the tissue is more dispersed in the tissue, which is conducive to the absorption of the drug, the absorption of the drug is more complete, and the bioavailability of the drug is also improved.
