초록 ▼

A dental air-abrasion system having at least one air source for supplying pressured air to at least a primary air passageway and a secondary air passageway. The primary air passageway has an inlet conduit that establishes fluid communication between the air source and a venturi cup. The venturi cup

A dental air-abrasion system having at least one air source for supplying pressured air to at least a primary air passageway and a secondary air passageway. The primary air passageway has an inlet conduit that establishes fluid communication between the air source and a venturi cup. The venturi cup is capable and intended to contain abrading particulate to be suspended in a primary air flow passing within the primary air passageway. The primary air passageway also has an exit conduit establishing fluid communication between the venturi cup and a manifold. The secondary air passageway includes a bypass conduit establishing fluid communication between the air source and the manifold. The manifold provides a fluid juncture for joining the primary air passageway with the secondary air passageway into a single uniform particulate delivery passageway. The uniform particulate delivery passageway terminates in a dispensing tip. Optionally, the air source includes a purifier for cleansing supplied air before its introduction into the air passageways. An agitator may also be coupled to the venturi cup for preventing compaction of abrading particulate in the venturi cup to assure suspension of the abrading particulate in the air flow passing from the venturi cup into an exit conduit. Further, an abrading particulate sensing means is directed across at least one conduit downstream from the venturi cup for sensing the amount of abrading particulate picked up from the cup.

대표청구항 ▼

[ What is claimed is:] [1.] 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 communicati

[ What is claimed is:] [1.] 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.