Patent ID: 6503256
Filing Date: 2003-01-07
Classification: A61B

Abstract:
A microdermal abrasion apparatus comprising:a supply container of abrasive particles, the container being installable and removable for disposal as an integral, substantially sealed unit; a handpiece for applying an input stream of abrasive particles to a skin surface through a particle supply channel and for removing a waste stream of particles and tissue abraded from the skin surface through a waste removal channel, the particle supply channel being connected to the supply container by a particle supply line to produce the input stream of abrasive particles; a waste filter connected to the waste removal channel in the handpiece by a waste disposal line, the waste filter being installable and removable for disposal as an integral, substantially sealed unit; the waste filter being comprised of: a waste inlet; an outer container; a filter element located in the outer container and connected to the waste inlet, the filter element providing a receptacle for spent abrasive particles and abraded tissue filtered from the incoming waste stream; and an air outlet for air filtered from the waste stream; a vacuum pump connected to the waste filter air outlet; an aerator which controllably mixes the abrasive particles with an air stream before delivery to the handpiece; and an adjustable air supply valve coupled to the aerator which controls the volume of abrasive particle flow through the particle supply line.