| 摘要 |
A minutely controlled dermabrasion hand piece and a method for controlling the hand piece, the hand piece comprising a main hand piece body for holding the hand piece by a user, a treatment head to provide negative pressure to a treated tissue and a vacuum tube to provide negative pressure to the treatment head through the main hand piece body, wherein the main hand piece body comprises at least one opening to control the supply of negative pressure to the treatment head, the at least one opening being blockable by the user holding the hand piece. The method for minutely controlling a dermabrasion hand piece comprises providing a dermabrasion hand piece and controlling supply of negative pressure to a treatment head of the dermabrasion hand piece.
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