Patent ID: 8696719
Filing Date: 2014-04-15
Classification: A61B

Abstract:
1. A bone anchor assembly, comprising: a distal body, said distal body having a lumen disposed throughout a length of said distal body and having a distal opening defined in a distal end of said distal body and in communication with said lumen and a proximal opening defined in a proximal end of said distal body and in communication with said lumen; an anvil disposed at a distal end of said distal body, said anvil having a transverse dimension larger than said lumen, said anvil connected to an elongated pull-member located within said lumen and extending an entire length of said lumen; a tether comprising a flexible component and a tether base component, said flexible component being connected at a first end to said distal body and being connected at a second end to said tether base component; an outer tube surrounding said tether and bearing against a feature of said distal body, wherein, upon retraction of said anvil in a proximal direction, at least some of said distal body is able to be reconfigured to a deployed configuration comprising at least two prongs extending away from the distal body.