Vibrational driver for endodontic activators

In combination, an endodontic activator and a driver to which said endodontic activator is removably connected and which vibrationally drives said activator;

• said driver comprising:
• a body having a handle, a neck, and a cover for said neck;
• said neck including a pair of spaced apart arms extending from an end of said neck;
• each said arm including a hole extending through said arm, the holes of said arms being aligned with each other;
• said cover enclosing said neck arms and comprising an opening at an end;
• said body defining a contra-angle wherein said handle and said neck define an angle of between 15°-30° and wherein when said activator is mounted to said body, said activator and said neck define as an angle of between 80°-85°;
• a driven member comprising a mounting portion, a connecting arm extending from said mounting portion, and a mounting arm which extends from said mounting portion and has a length sufficient such that a portion of said mounting arm extends through said cover opening;
• said connecting arm having a connection member at an end remote from said mounting portion said connecting arm having a substantially straight and uninterrupted side surface between said connection member and said mounting portion;
• said mounting arm and said connecting arm being spaced from each other about said mounting portion such that said mounting arm and said connecting arm define an angle of between about 80° and about 90°;
• said driven member mounting portion being shaped and sized to be received between said neck arms;
• said driven member mounting portion defining a transverse hole which extends through said mounting portion;
• said driver including an axle which extends through said driven member mounting portion hole and into said neck arm holes;
• said axle pivotally mounting said driven member in said body and defining a pivot axis generally normal to an axis of said body about which said driven member can pivot;
• and
• a drive;
• said drive comprising a rotatable block having an axis of rotation;
• said connection member of said driven member connecting arm being operatively connected to said rotatable ellipse block at a point offset from said axis of rotation of said rotatable ellipse block;
• whereby, when said ellipse block rotates, said connection member of said driven member connecting arm orbits about said axis of rotation, and the pivotal mount of said driven member in said body converts said orbital motion of said connecting arm to oscillatory motion in said driven member mounting arm;
• said activator comprising:
• a mounting block defining a pocket;
• said pocket being shaped complimentarily to an end of said driven member mounting arm and sized to be frictionally and removably received on said driven member mounting arm;
• and
• an activating tip extending from said mounting block.