Patent ID: 6948935

Claim:
A device for performing dental procedures, comprising: (a) a shaft assembly, said shaft assembly further comprising: (i) a threaded housing for attaching said shaft assembly to an ultrasonic generator; (ii) an angled shaft connected to said threaded housing, said angled shaft further comprising a bore passing through its length; (iii) a hub attached to the end of said angled shaft opposite said threaded housing for reducing the diameter of said bore; and (iv) an aperture passing through the outer wall of said shaft, wherein said aperture is positioned near the larger of the two angles formed by said angled shaft and oriented in the direction of said hub; and (b) a needle for focusing ultrasonic energy, wherein said needle passes through said aperture, said bore in said angled shaft, and exits said shaft through said hub; and (c) a means for delivering fluid through said needle, said means further comprising: (i) a reservoir for storing said fluid; and (ii) a tubing assembly comprising a length of tubing and a means for connecting said tubing to said reservoir and said needle.