The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 30, 1999
Filed:
Jun. 25, 1998
Jeffrey J Vaitekunas, West Chester, OH (US);
Narinderjit S Sambi, Mason, OH (US);
Navneet T Sharma, Bridgewater, NJ (US);
Ethicon Endo-Surgery, Inc., Cincinnati, OH (US);
Abstract
Bone anchors, after insertion into bone, are designed to remain in place and provide a platform for holding tissue. An ultrasonic bone anchor is described, comprising a proximal end, a distal end, and a body between the proximal end of the bone anchor and the distal end of the bone anchor. There is an outer surface on the body of the bone anchor which may include at least one protrusion extending from the outer surface of the bone anchor body. A coupling element is located at the proximal end of the bone anchor. The ultrasonic bone anchor is adapted to reciprocate at an ultrasonic frequency with an excursion of 50 to 300 micrometers. An embodiment of the present invention includes an ultrasonic bone anchor wherein the coupling element includes threads formed in a right-hand screw pattern, and the protrusion is formed in a left-hand screw pattern. Alternately the threads may be formed in a left-hand pattern and the protrusion formed in a right-hand pattern.