Patent ID: 7621934

Claim:
A method of transplanting a hair follicular unit using a multi-part tool assembly, the tool assembly comprising coaxially disposed harvesting and implanting cannulas, the method comprising: positioning the harvesting cannula in proximity of a selected follicular unit to be harvested from a donor area of a body surface; advancing the harvesting cannula relative to the donor area of the body surface so that an open, tissue coring distal end of the harvesting cannula penetrates the body surface surrounding the selected follicular unit to a depth sufficient to substantially encapsulate the follicular unit; withdrawing the harvesting cannula from the body surface with the follicular unit engaged by and retained in an interior lumen of the harvesting cannula; advancing a tissue piercing end of the implanting cannula over the harvesting cannula to puncture a recipient area in the body surface and to form an implantation cavity therein; and displacing the follicular unit from the harvesting cannula lumen into the implantation cavity.