Micro cannula blunt tip needle for dermal hyaluronic acid filler.

A blunt cannula is a small tube with an unsharp rounded end, specifically designed for atraumatic intradermal injections of fluids, for example injectable fillers. It has ports on the side allowing the product to be dispensed more evenly. Over the years a wide array of blunt-tip micro-cannulae have been designed that offer variety in flexibility, size and diameter, but all are very small in diameter. The modern micro-cannulae allow both superficial and more involved procedures. Different sizes can also be used to inject fillers of nearly any type of level of viscosity. Extremely flexible, long micro-cannulae can be used to employ the "fanning technique", a method that allows for treatment of a large area through a single puncture point.