Patent ID: 9474550
Filing Date: 2016-10-25
CPC Classification: A61B

Claim Text:
1. An exfoliation unit, comprising: a unit handle which is hollow and has a handle proximal end and a handle distal end, and has an air receiving port in said handle distal end and an air discharge port in said handle proximal end; an abrasion rim adjacent to said air receiving port having an abrasive surface; an air passageway in fluid communication with said air receiving port and said air discharge port; vacuum means comprising a blower in fluid communication with said air passageway for drawing an air stream into, and thereby creating a vacuum at the air receiving port and for blowing the stream of air through said passageway and out of said air discharge port; and a debris gathering chamber in fluid communication with said air passageway for collecting and retaining debris particles in said air stream, said debris gathering chamber comprising a hollow dome within said hollow unit handle having a dome base; a cross-sectional dividing wall having a lateral edge extending across said dome base having an air passing port adjacent to said lateral edge of said dividing wall; and a barrier wall protruding distally from said dividing wall adjacent to said air passing port extending toward but leaving a gap between said dome and said barrier wall; such that the air stream enters the debris gathering chamber through the air receiving port on a first side of the barrier wall and follows a path which initially is directed proximally, then doubles back to flow distally and to enter and pass through the gap and then to flow proximally along the second side of the barrier wall and through the air passing port to continue through the passageway, through the blower and out of the unit through the air discharge port.