First of all, we need to correct the so-called hard-connected blood collection needle. . In fact, it should be a pen blood collection needle or an integrated blood collection needle. Because its puncture needle and blood collection needle are integrated, they run through the needle tube, and the sharp cutting edge in the front section pierces the human vein, so it is called puncture needle. The puncture blood-blocking sleeve and vacuum tube rubber plug with a slightly sharp back end make the negative pressure in the tube suck human venous blood into the tube and become a blood specimen. In this process, the blood collection needle needs to be screwed into the inner hole at the front end of the needle holder, which has the following functions: 1, providing a stable operating handle; 2. Provide a completely closed collection environment to protect medical staff from being contaminated by blood stains during the collection process; And provide a relatively accurate puncture center position, so that that vacuum tube passe through the center of the needle as much as possible, and the collection quality is guaranteed; 3. The fixed puncture needle is relatively stable and in the position of venous blood vessels, which ensures the reliability of the collection process.
Then, we say that the needle holder, an auxiliary tool of blood collection needle, can be reused many times in most clinics. However, there is a great risk, that is, in the process of reassembling the blood collection needle, removing the blood collection needle and discarding it, there is the possibility of being injured by acupuncture. Therefore, at present, the developed countries in the world have already developed a disposable safe blood collection needle with a needle holder, which can trigger a button after collection, so that the puncture needle automatically retracts and is completely shielded, eliminating the risk of medical personnel being injured by acupuncture, reducing the operation links and improving the work efficiency. At this time, the needle holder is disposable.
At present, Shanghai Nasijia Pharmaceutical Technology Development Co., Ltd. has also produced a disposable safe blood collection needle by using the patented technology independently developed with international advanced level, and it has been registered by the State Food and Drug Administration of the United States and approved for listing.