Ultrasonic bone anchor

An ultrasonic bone anchor comprising:

• a proximal end, a distal end, a body between said proximal end of said bone anchor and said distal end of said bone anchor;
• an outer surface on said body of said bone anchor;
• a coupling element located at said proximal end of said bone anchor;
• and
• at least one protrusion extending from said outer surface of said bone anchor body, wherein said protrusion is formed in a substantially straight line along said bone anchor body length, from said bone anchor proximal end to said bone anchor distal end;
• and
• wherein said ultrasonic bone anchor is adapted to reciprocate at an ultrasonic frequency with an excursion of 50 to 300 micrometers.

An ultrasonic bone anchor comprising:

• a proximal end, a distal end, a body between said proximal end of said bone anchor and said distal end of said bone anchor;
• an outer surface on said body of said bone anchor;
• a coupling element located at said proximal end of said bone anchor, wherein said coupling element includes a tapered surface;
• and
• at least one protrusion extending from said outer surface of said bone anchor body, wherein said ultrasonic bone anchor is adapted to reciprocate at an ultrasonic frequency with an excursion of 50 to 300 micrometers.

An ultrasonic bone anchor comprising:

• a proximal end, a distal end, a body between said proximal end of said bone anchor and said distal end of said bone anchor;
• said bone anchor body having a central portion between said distal end and said proximal end, said central portion having a length;
• an outer surface on said body of said bone anchor;
• a coupling element located at said proximal end of said bone anchor, wherein said coupling element includes a tapered surface;
• and
• at least one protrusion extending from said outer surface of said bone anchor body wherein said protrusion is formed in a substantially straight line along said bone anchor body length, from said bone anchor proximal end to said bone anchor distal end, and
• wherein said ultrasonic bone anchor is adapted to reciprocate at an ultrasonic frequency with an excursion of 50 to 300 micrometers.

An ultrasonic bone anchor comprising:

• a proximal end, a distal end, a body between said proximal end of said bone anchor and said distal end of said bone anchor;
• and
• a coupling element located at said proximal end of said bone anchor;
• wherein said ultrasonic bone anchor is adapted to reciprocate at an ultrasonic frequency with an excursion of 50 to 300 micrometers.