Patent ID: 6093021
Filing Date: 2000-07-25
Classification: A61C

Abstract:
A dental air-abrasion system, said air-abrasion system comprising:at least one air source for supplying pressured air to at least a primary air passageway and a secondary air passageway;said primary air passageway comprising an inlet conduit establishing fluid communication between said air source and a venturi cup, said venturi cup for containing abrading particulate to be suspended in a primary air flow passing within said primary air passageway;said primary air passageway comprising an exit conduit establishing fluid communication between said venturi cup and a manifold;said secondary air passageway comprising a bypass conduit establishing fluid communication between said air source and said manifold;said manifold providing a fluid juncture for joining said primary air passageway with said secondary air passageway into a single uniform particulate delivery passageway, said uniform particulate delivery passageway terminating in a dispensing tip; andan agitator coupled to said venturi cup for preventing compaction of abrading particulate in said venturi cup and for facilitating suspension of the abrading particulate in an air flow passing out of said venturi cup into said exit conduit.