Ultrasonic dental tool
AssigneeSan Diego Swiss Machining, Inc.
InventorsTeresa R. Hickok, Claude E. Martin, Clifford J. Ruddle
Life of this patent
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Abstract
An ultrasonic dental tool for use with an ultrasonic transducer, comprises a substantially elongate tool defined by a shaft having a proximal end with a connector for attachment to an ultrasonic transducer, a distal end having a tip configured for performing a dental procedure, a portion of straight cylindrical wall from the tip inward toward the proximal end, and a contra-angle portion of substantially uniform diameter on the proximal end, and a uniform gradual tapered portion intermediate the distal end and the proximal end.
Claims25
A dental tool for use with an ultrasonic transducer, the tool comprising:
- a substantially elongate tool defined by a shaft having a proximal end with means for attachment to an ultrasonic transducer, and a distal end having a tip configured for performing a dental procedure;
- said distal end having a portion of straight cylindrical wall from said tip inward toward said proximal end;
- and
- a contra-angle between said cylindrical wall and said proximal end, wherein said shaft tapers from said cylindrical wall to said contra-angle.
An ultrasonic dental tool for use in an ultrasonic transducer for root canal procedures, the tool comprising:
- an elongated tool defined by a shaft having a proximal end and a distal end, a threaded connection member on said proximal end for attachment to an ultrasonic transducer, and a tip configured for performing a dental procedure on said distal end, said shaft having a straight cylindrical portion of uniform diameter on said distal end from said tip inward toward said proximal end, a contra-angle portion of substantially uniform diameter adjacent said connection member at said proximal end, and a uniform gradual tapered portion intermediate said cylindrical portion at said distal end and said contra-angle portion at said proximal end.
An ultrasonic dental tool for use in an ultrasonic transducer for root canal procedures, the tool comprising:
- an elongated tool defined by an elongated shaft having a proximal end and a distal end, a threaded connector on said proximal end for attachment to an ultrasonic transducer, and a tip configured for performing a root canal dental procedure on said distal end, said shaft having an elongated straight cylindrical portion of uniform diameter and a length of from about 5 mm to about 12 mm on said distal end from said tip inward toward said proximal end, an elongated contra-angle portion of substantially uniform diameter adjacent said threaded connector on said proximal end curved outward in a first direction from said axis at an angle of about fifteen degrees and curved outward in a second direction across said axis at about forty-five degrees to said axis, and a uniform gradual tapered portion intermediate said cylindrical portion of said distal end and said contra-angle portion of said proximal end.
Dependencies are inferred from the claim text.