Method and apparatus for ultrasonic removal of bone cement material
AssigneeBiomet, Inc.
InventorsMark V. Vandewalle, Dean R. Golden
Life of this patent
Estimating the term…
Abstract
A method and apparatus for ultrasonic removal of bone cement material includes an auger tool and an ultrasonic transducer/hand piece. The auger tool includes a spiral helical flute which extends about a cylindrical body and a quick connect mechanism for coupling the auger tool to the ultrasonic transducer/hand piece. Upon energizing the hand piece, bone cement is heated to a flowing mass so that the flowing mass of bone cement may flow about the cylindrical body and guided, via the spiral helical flute 90. This provides a method and apparatus for easily and quickly removing bone cement material during a revision type orthopedic surgical procedure.
Claims19
An ultrasonic tool for use in removal of bone cement material, said ultrasonic tool comprising:
- a connector portion operable to be connected to an ultrasonic apparatus;
- a shaft extending from said connector portion;
- and
- an auger head coupled to said shaft, said auger head including a conical tip and a helical flute, said helical flute defining a helical channel that extends along at least a portion of said shaft, said helical channel operable to pass bone cement material.
An ultrasonic system for use in removal of bone cement material, said ultrasonic system comprising:
- an ultrasonic power console;
- an ultrasonic transducer hand piece, said ultrasonic transducer hand piece being driven by said ultrasonic power console;
- and
- an ultrasonic tool coupled to said ultrasonic transducer hand piece, said ultrasonic tool having an auger head that includes a conical tip and a helical flute, said helical flute defining a helical channel that is operable to pass bone cement material upon driving said ultrasonic transducer hand piece with said ultrasonic power console.
A method for ultrasonic removal of bone cement material, said method comprising:
- providing a first ultrasonic tool having a first auger head that includes a first conical tip and a first helical flute that defines a first helical channel, the first helical flute having a first diameter;
- applying ultrasonic power to the first ultrasonic tool to cause the first auger head to vibrate;
- and
- guiding the first ultrasonic tool with the first conical tip into the bone cement material to guide molten bone cement material along the first helical channel.
Dependencies are inferred from the claim text.