Dr. Anil Rajani, Board Certified Physician and Surgeon and Medical Director, Emerge Medical Spa, is one of the first doctors in the Northwest to offer needle-less dermal filler injections. The needle-less filler injection using a flexible micro cannula is revolutionizing the world of dermal fillers by offering patients a virtually pain and bruise-free experience: The micro cannula causes much less tissue trauma so there is a significant reduction in bruising and pain compared to traditional filler injections using standard needles.
How the Needle-less Cannula Works
A micro cannula is inserted under the patient’s skin. Dermal filler is then injected through the cannula to help soften wrinkles, augment lips and cheeks and restore facial volume due to aging or illness. There are numerous advantages to using a cannula to inject facial fillers compared to needles:
•Safety – the blunt tip of the cannula prevents intra-arterial injection, the most serious complication from injecting fillers using needles
•Comfort – patients undergoing cannula injection experience much less discomfort
•Recovery – the social downtime from bruising and swelling is practically eliminated
•Value – fillers can be administered with greater precision so the results are more natural and less product is needed to treat most areas. The Cannula technique itself is thought to stimulate collagen for better long term skin appearance.
•Flexibility – cannulas allow access to virtually any area of the facial anatomy for improvement with fillers. Previously hard to treat areas such as vertical lip lines, hollow cheeks and temples (to name a few) are easily corrected using this technique.
Introduced in Europe a few years ago, this technique is gaining popularity with aesthetic physicians around the world. The cannula is flexible and has a blunt tip with a side-hole for filler extrusion. Using the Precision Sculpting Technique, Dr. Rajani slides the Microcannula under the patient’s skin so that the filler can be applied with practically no pain or bruising for the patient. A topical anesthetic can be used but no local anesthesia or nerve block is required. Watch Dr. Rajani demonstrate the needle-less technique.
“I’m extremely excited to offer our dermal filler patients at Emerge Medical Spa a virtually pain and bruise-free option,” said Dr. Rajani, who has also received Diamond Elite Status for Artefill, the permanent dermal filler lasting up to 10 years or more. “This advancement in our industry is nothing short of revolutionary,” added Dr. Rajani.
Most patients choose to use a topical anesthetic for 15-30 minutes prior to receiving their injection. After which, a small traditional needle is used to make an entry point. Micro-cannula injection requires a single entry point for a large area instead of many as occurs with a needle. Because the tip of the cannula is smooth and rounded, small vessels are simply pushed out of the way instead of being cut so there is virtually no bruising and no pain. Sensations are basically that of slight pressure and movement as the cannula is moved from one area to another.
Supplemental Frequently Asked Questions:
How many entry points are required?
For an upper and lower lip, only two – one at each end of the lip area. For a full face rejuvenation (cheeks, lip, mouth area, chin) you will likely have 4 -6 points of entry.
How does the filler extrude from the micro-cannula?
Needles push the filler in front of the needle tip – micro-cannulas have a small opening on the side. This opening provides a smoother delivery of the filler so no matter what the pressure from the injector, there is a smooth flow of material.
Does it cost more to have my filler placed with a micro-cannula?
No. The additional cost of the cannula is absorbed by Emerge Medical Spa, as we want our patients to have the most comfortable experience possible.





