2022-02-23
Traditionally, dermal fillers are injected using a needle. In fact, most dermal fillers still come with two short (1/2 inch) needles as the recommended method of product injection. However, instead of using the provided needle, using a blunt tip cannula to inject the dermal filler has several advantages. One of the main advantages of using a blunt cannula is that it reduces the possibility of penetrating blood vessels, especially arteries. Injecting fillers into the arteries can have catastrophic consequences, including blindness, stroke, and death of the injected skin.
The vast majority of practitioners still use needles to inject fillers, although the use of cannulas is increasing. Technically speaking, it is much more difficult to use casing. Using a cannula requires a lot of sensation, and the needle just pierces the tissue. Because the sharp tip is extremely thin, it is essentially a power multiplier. This is why only a small amount of thrust is required to guide the needle through the face. The learning curve associated with the use of intubation coupled with the additional cost of purchasing intubation may be the reason for the lack of use among practitioners, despite their advantages.
When using a needle, the sharp tip of the needle penetrates the skin and reaches the depth of the filler injection. In contrast, the tip of the cannula is blunt, so it cannot penetrate the skin. A needle is needed to make an entry point for the cannula that has just passed through the skin. Then use the cannula through the entry point to the area under the skin. The blunt tip cannula can re-enter the same entry point again without having to puncture the patient again.
Because the cannula is blunt, it does not pass through the tissue randomly like a needle. A pointed needle may be easier to enter or pass through a vein or artery. This can cause significant bruising or swelling, and the worst case is intravascular injection (injecting filler into an artery or vein, which can cause serious complications). The cannula (the plural form of cannula) is blunt and less likely to enter a vein or artery, thus causing less bruising or swelling, and tends to avoid intravascular injections. Conversely, when veins or arteries pass through tissue, the blunt tip tends to push them aside. In addition, practitioners can feel the resistance of the structure through which the casing passes, allowing them to judge when and how to apply pressure or manipulate the direction of the casing. Finally, the cannula tends to be longer than most needles, so it can reach more areas with fewer entry points into the skin.
All in all, there are many advantages to using a blunt tip cannula instead of a needle to inject dermal fillers. This is good for patients and practitioners.
The cannulas are blunt, which means they are unlikely to pierce veins or arteries. This will reduce swelling, bruising and intravascular injection of fillers.
Practitioners have more sense of what structure the sleeve tip is passing through.
The cannula is longer, allowing fewer injections and entry points through the skin.
The same entry point can be passed multiple times without harming the patient.
Hot Tags:Micro Needle,Blunt Cannula,Skin Whitening Injection