Filler injection with micro-cannula instead of needles.

摘要

Volume augmentation with injectable fillers has become a popular cosmetic facial procedure,1' with more than 1 million hyaluronic acid filler injections given in 2007, a 35% increase from the previous year. These procedures are typically performed using hypodermic needles, most often supplied with the product. There are numerous problems associated with needles, including pain, tissue damage from a sharp beveled edge, bruising and vessel laceration, the need for multiple punctures, and needle phobia on the part of the patient.In certain applications, using a longer, blunt injection device has numerous advantages for the injector and patient.