Blood collection needle used for collecting blood samples in the process of medical examination is composed of a needle and a needle rod, the needle is arranged at the head of the needle rod, the needle rod is sliding connected with a sheath, and a reset spring is arranged between the sheath and the needle rod, and the initial position of the sheath is located at the head of the needle and the needle rod. When the operator holds the needle in hand and presses the blood collection needle on the patient's limb, the sheath retracted under the elastic action of the skin to make the needle protrude and Pierce into the skin, resulting in minimally invasive injury. After the blood collection needle is removed, the sheath is reset under the action of the reset spring and the needle head is covered to avoid the contamination of the needle exposed or accidental stabbing of the human body. When the blood collection needle is removed, the cavity between the needle and the skin gradually increases, forming instantaneous negative pressure, which is conducive to the collection of blood samples. Blood Collection Needles,Multi Needle,18G Open Needle,20G Needle,Blood Taking Collection Needle Changchun ZYF science and technology CO.,LTD , https://www.zyf-medical.com
[ China Pharmaceutical Network Technology News ] April 10 news, the United States "Pharmaceutical Research" (Pharmaceutical Research) published an article recently said that Russian medical scientists and biologists extracted a nanometer from fat and protein Particles that penetrate into cancer cells and kill them.
(New breakthrough! Scientists extract nanoparticles to kill cancer cells. Source: Baidu Pictures)
Cancer is a fascinating word, and most cancers are incurable. Recently, a new invention by Russian scientists may become a nemesis of cancer, saving more cancer patients. According to a report by the Russian News Agency on April 10, an article published in the "Pharmaceutical Research" magazine recently said that Russian medical scientists and biologists have extracted a nanoparticle from fat and protein. The particles can penetrate into the cancer cells and kill them.
The study came from Yuri Vladimir, a scientist at the Moscow State University, and his colleagues. They have developed a new way to fight cancer: by the action of nanoparticles, a special group of molecules is delivered to cancer cells, which can kill cells directly. Among them, cytochrome C is a key element of this molecule, which can be attached to other cancer cell molecules to separate into proteins and other cellular components, and ultimately achieve the purpose of killing cells.
Vladimir explained: "The purpose of this work is to develop a new type of anticancer substance based on the CIT-KL complex. This complex is also present in normal cells, which can be used to control cell death. At the same time, there are plans to study ways to direct the drug to cancer cells."
In recent years, scientists have found a variety of breakthrough methods for treating cancer based on organic or inorganic nanoparticles. In some cases, tumors can be removed using these methods. Some nanoparticles can accumulate diseased cells at the tumor, limit cell activity, and reduce the dose of drug needed to completely destroy cancer cells. Such nanoparticles can exist in a manner that is "invisible" to the immune system by various organic tissues, mimetic cells, and even inorganic compounds.