Patent ID: 8986324
Filing Date: 2015-03-24
Classification: A61B

Abstract:
1. A method of dissecting an individual follicular unit using a multi-part tool assembly comprising coaxially disposed first and second elongated bodies, the method comprising: advancing a first elongated body relative to a skin surface such that a distal tip of the first elongated body penetrates the skin surface surrounding a follicular unit and initiates a path; advancing a second elongated body relative to the skin surface, such that a distal tip of the second elongated body enters the skin surface following the path initiated by the first elongated body; wherein while beneath the skin surface the second elongated body is incrementally advanced in depth in a pulsed manner resulting in overall advancement beneath the skin to dissect the follicular unit, the pulsed manner comprising a succession of alternating advancing and retracting steps, each advancing step having an advancement distance increment and each retracting step having a retraction distance increment, and wherein the advancement increments and/or the retraction increments during dissection of the follicular unit vary in distance on at least some of the advancing and/or retracting steps; the method further comprising advancing the second elongated body in at least two consecutive advancing steps such that the second elongated body is paused at a depth location of a first of the at least two consecutive advancing steps for a predetermined time before advancing to a second of the at least two consecutive advancing steps.