It is a technique and part of a process of hair transplantation which has become popular in last decade. DHI technique is similar to the FUE hair transplant technique, but differs in its application technique. The DHI hair transplant is also known as the technique of direct hair transplantation and the pen technique. The choi implanter guides the graft directly to the scalp.
DHI technique is not only well known to achieve the most natural-looking results but also it provides maximum life for transplanted hair than any other technique. The use of the Choi pen makes it possible to implant hair in more density.
ProcessThe process is same till extraction of grafts. After extraction of grafts instead of making slits or incisions the grafts are loaded in implanters and they are directly implanted to scalp.
There are different sizes of choi implanter needles according to the sizes of needle of choi implanters. The smallest size is for single hair follicle, bigger than this is for double hair follicle, successively for triple and quadruple hair follicles. Depending upon the graft’s arrangements the choi implanters are used. After local anesthesia in recipient site the implanters are loaded with help of technicians and surgeon implants in scalp with help of pen or choi implanters one by one. After the sharpness is reduced of pen those are replaced with new one. Choi implanter enables implanting hair grafts at accurate angles, direction and depth without damaging surrounding tissues.