Compared with sharp needles, what is the biggest advantage of blunt needle injection? In fact, as a device for hyaluronic acid injection, most hospitals have always used sharp needles. After I came into contact with a blunt needle later, I found that it has many advantages and advantages. For example, the chance of bruising (injuring blood vessels during intramuscular injection, causing subcutaneous congestion) is greatly reduced. In the early days, the incidence of bruises using sharp needle injections was about 10%-20%. Later, after I became proficient with the technique, the incidence rate was about 1%-2%. The blunt needle injection is about 0.5%-0.8%, and the incidence of bruising is indeed much lower. Moreover, the blunt acupuncture technique can indeed be used more conveniently, and the chance of adverse reactions such as sequelae is also greatly reduced.
Since the blunt needle has so many advantages, does that mean that it will completely replace the position of the sharp needle? The needle of the sharp needle is actually like a bayonet, and the tissue it passes through will be “cut” by it first; Features The first section is blunt, produced from a single piece of steel, the surface is completely polished, the head is blunt, the entry into the tissue can achieve minimal trauma, you can walk around in the tissue, the side hole is very lubricated, and will not be pulled one by one. It is slippery and will not cause trauma to the tissue, so that the chances of bruising on the face are much less, and it can also make it easier for hyaluronic acid to come out of the side hole and fill the tissue. However, there is no difference in the postoperative effect between the two, but the customer’s injection experience is very different.
Injectable beauty is called lunch beauty and is very popular because it recovers quickly after surgery, and you can go to work immediately after the injection. If there are bruises, it will not affect customers well. In fact, when it comes to sharp needles, the most feared thing is that the injection will hurt the blood vessels and enter the arteries. There was a case in Korea earlier. When hyaluronic acid was injected into the ophthalmic artery, due to the strong water absorption of hyaluronic acid, once it entered the blood vessel and contacted the blood, it would cause embolism of the blood vessel and cause blindness in the right eye. Because the needle is inserted, you can’t see where the needle is. Although the probability of such an accident is very low, in fact, such an accident happens.
Even so, it does not mean that sharp needles will be eliminated, because even if a blunt needle is used for injection, it is still necessary to use a sharp needle to make a hole in the skin before the blunt needle can enter the skin. As Dr. Sandrine said, blunt needles come out from the side of the needle when injecting hyaluronic acid, which is suitable for large-area filling injections, such as apple muscle, tear trough, etc. After injection, it will not bruise and the skin will not have a stress response. The maintenance time is longer; and the sharp needle is suitable for small and delicate injection sites, such as the nasolabial fold. Experts believe that the combination of two types of needles is better than a single type of needle, which can take into account both safety and effect.