Patent ID: 6485303
Filing Date: 2002-11-26
Classification: A61C,B24C

Abstract:
A dental implement for abrading teeth, comprising:an instrument having a plurality of passageways extending from a proximal end of said instrument to a distal end of said instrument, said instrument having a transverse bore at least partially through said instrument and at least partially interrupting at least one of said plurality of passageways in said instrument; a valve member within said transverse bore, said valve member selectively blocking said at least partially interrupted passageway of said instrument; a coupler mounted on the distal end of said instrument, said coupler in fluid communication with said plurality of passageways of said instrument; a tip releaseably mounted into said coupler, said tip having at least two tip passageways in fluid communication with said plurality of passageways through said coupler, said tip having a distal discharge end for discharging both fluids from said tip passageways; and wherein said valve member is smaller than said transverse bore. such that fluid in said at least one passageway will flow around said valve member in any position.