Patent attributes
An ultrasonic instrument includes generator of ultrasonic energy; a connecting body that receives ultrasonic energy from the generator and having an end from which the energy exits and a coupler at such end exterior of the connecting body having an inlet aspiration flow passage for receiving aspiration flow force from a source. A work tip has its proximal end connected to the coupler to receive the generated ultrasonic energy and a distal end from which the ultrasonic energy is supplied to the operating site to emulsify material. The work tip has an aspiration passage that is in communication with an aspiration passage in the coupler that communicates with the inlet passage and at least one of the work tip is detachable from the coupler and coupler detachable from the connecting body. Aspiration fluid flow force is provided through the coupler to the work tip aspiration passage without coming into contact with the interior of the connecting body to thereby permit removal of the work tip so that the instrument can be reused by replacing the work tip and without sterilization of the connecting body.
