The invention provides anchoring devices and methods for coupling an object, such as a suture or soft tissue, to bone. In one aspect of the invention, a bone anchor is placed into compression fit with a predrilled bone hole by pulling an insertion stem at least partially into an anchoring element. In...http://www.google.de/patents/US5935129?utm_source=gb-gplus-sharePatent US5935129 - Methods and apparatus for anchoring objects to bone
