Who invented injection?

It is common to get sick and have injections and infusion bottles today. However, do you know how the syringe for injection was invented? It has a long history and rich medical knowledge. In order to send drugs into the body, people have tried wooden hooks and The Lancet syringes, which took longer than many people thought. In the 65438+60s, a monograph on intravenous infusion appeared in Germany. At this time, few doctors used animal bladders as intravenous injection tools, inserted hollow branches into human bodies and tried blood transfusion. Although this method has saved some lives, it has also brought many fatal complications. 1670, the Paris parliament banned blood transfusion, and the animal bladder injection technology disappeared. By the beginning of19th century, pharmaceutical technology had been developed. In order to deliver drugs into the body, doctors tried various instruments from wooden hooks to The Lancet, trying to deliver drugs into the body by puncturing the skin with instruments stained with drugs. In fact, syringes have already appeared at this time, but people just use them to treat birthmarks. The needle was also invented by Irish doctor Francis Ryan. But it was not until 1853 that Alexander Wood of Scotland and Charles Pravas of France first combined syringes and needles, and this innovation became the originator of modern syringes. Alexander used this new tool to inject morphine subcutaneously into patients to treat sleep disorders. Unfortunately, however, Alexander's wife died of an overdose of morphine. A few years later, Alexander calibrated the syringe needle and replaced it with a thinner needle. This series of improvements immediately attracted the attention of many doctors and was soon widely used. This has enabled many diseases to be cured and brought a leap in the history of medicine. Plastic syringes have become the first choice for safety. By the 1950s, the production of syringes had reached a considerable scale. There are also various models of syringes as small as 0.25ml and as large as 200ml. At this time, at the request of the Red Cross, American BD Company produced disposable blood collection bags, and then developed disposable syringes made of glass. In just three weeks, these syringes vaccinated 654.38 million +0 million American children against polio. Subsequently, BD acquired the Baltimore Biological Laboratory and developed a set of aseptic technology. This laid the foundation for the whole disposable sterile medical device industry. The rapid development of plastic industry has also injected new elements into the production of syringes. 1956, New Zealand doctor colin murdock invented the disposable plastic syringe. Compared with the traditional glass syringe, the syringe made of plastic not only inherits the advantages of inertia and transparency of glass products, but also has the characteristics of being difficult to be damaged, convenient to transport, low in cost and easy to recycle, and its safety is beyond the reach of glass syringes. Disposable sterile syringes began mass production and gradually replaced traditional syringes, becoming the first choice for doctors. Today, only one subsidiary factory of BD Company in Canaan has the capacity to produce 30 million disposable sterile syringes every week. /kloc-after 0/0 years, the injection no longer hurts. Syringes not only saved thousands of people in Qian Qian, but also killed many doctors. Needle injury is the main way for doctors to infect hepatitis and AIDS. Since 1980s, the protection of medical personnel has been taken into consideration in the packaging, design and recycling of syringes. The United States requires all hospitals to stop using traditional steel needles and use medical devices with safe design. The future development of syringes will be more effective, safer, easier to use, cheaper and more humane. It is worth mentioning that many people are afraid of injections since childhood, and the reason is self-evident-pain. However, this problem will be solved in 10 years. At present, people are developing a kind of "microneedle", the diameter of which is equivalent to human hair. Because it is very thin, it can obviously alleviate or even eliminate the pain during injection.