Is cumulus aided transfer a proven technique to increase implantation success in ivf procedures ? which clinic in the us utilizes this technique ?

No: This technique, which adds cumulus cells from inside ovarian follicles to the ivf mixture, has not been shown to improve ivf success whatsoever. As ivf centers strive to improve pregnancy rates, if this was shown to help, this simple technique would be widely employed (but it's not). If you're doing ivf, find a center with the highest ongoing success rates you can afford. See us at www.Ivfmd.Com.