FUE Implantation Devices
The Choi Implanter Pen
The Choi Implanter is generally considered the “original” implanter pen device, and originated from the Kyungpook National University (KNU) in Korea. The idea behind this first implanter device was simple: to combine the act of making recipient incisions and implanting follicular units.
Normally, anywhere from 2-6 Choi implanters are used concurrently during a procedure, and the device comes in a variety of needle sizes to fit single, double, and triple follicular unit grafts.
According to some hair restoration experts, there are distinct advantages and disadvantages to the Choi Implanter device. Advantages include adequate survival rates, decreased bleeding during recipient site creation and reduced trauma during graft handling since the lower regions of the follicle containing the crucial hair bulge and derma papilla aren't touched while loading the pens or during implantation. Also, since Choi implanter pens simultaneously create recipient incisions and place grafts, the overall time of the FUE hair transplant procedure may be reduced with an experienced and adequate team.
Disadvantages include increased training time for the physician and staff members, more expensive procedures, lack of depth control when creating incisions, and reports of needles attached to the pen dulling prematurely during the procedure. Another disadvantage is that the Choi implanter pen uses larger needles as big as 1.1mm in diameter. Moreover, because the hair in the donor region is usually only trimmed to 1 or 2 cm in length which is an optimal length for the pen, extraction may be more difficult and increase the risk of transection.
Some physicians find greater success rates when performing FUE hair restoration with the Choi Implanter on Asian patients compared to patients of other races. Experts researched this phenomenon and came to the following conclusion: Asian hair shaft diameter is generally thick and straight, and the curly characteristics and thinner diameter of other races is difficult to properly load into the implanter and place in the scalp. This can lead to inappropriate graft bending, incorrect graft placement, and excessive trauma to the graft. Thus, most likely, not all patients are ideal candidates for use of the Choi implanter pen during surgery. However, other physicians disagree with this assessment, and believe training and experience with the Choi Implanter pen allows for effective graft placement with any type of hair characteristics.
For a more comprehensive discussion about the Choi Implanter, visit "What is the Choi Implanter Pen for Hair Transplant Surgery?"