Abstract: A novel handpiece and system for abrasion of skin is disclosed. A short handpiece with a threadably movable tip is used. The opening in the tip is centered on the handpiece axis and a small diameter particle input channel and diameter larger output channel are both offset from the handpiece axis. A vacuum control opening is formed in the tip for easy control by the operator. Abrasive particles and removed tissue are applied to the interior of a cylindrical filter supported within a support can. The annular area between the can and filter is connected through a secondary emergency filter to a vacuum pump. The cylindrical filter can be a flexible filter bag. A large source of abrasive particles is coupled to the handpiece inlet and the filter is coupled to the handpiece outlet.

Abstract: A novel handpiece and system for abrasion of skin is disclosed. A short handpiece with a threadably removable tip is used. The opening in the tip is centered on the handpiece axis and a small diameter particle inlet channel and larger diameter outlet channel are both offset from the handpiece axis. A central blade or barrier within the tip divides the tip into two volumes which each communicate with the opening and respective ones of the inlet and outlet passages. A vacuum control opening is formed in the tip for easy control by the operator. Abrasive particles and removed tissue are applied to the interior of a cylindrical filter supported within a supporting container. The annular area between the container and this filter is connected through a secondary emergency filter to a vacuum pump. The cylindrical filter can be a flexible filter bag. A large source of abrasive particles is coupled to the handpiece inlet and the filter is coupled to the handpiece outlet.