A dermabrasion instrument includes an outer member and an inner member rotatably disposed in the outer member with an abrading member of the inner member exposed from the outer member. An aspirating passage in the abrading member establishes communication with an aspirating channel of the inner member...http://www.google.fr/patents/US6423078?utm_source=gb-gplus-shareBrevet US6423078 - Dermabrasion instrument, instrument assembly and method
Dermabrasion instrument, instrument assembly and method