Patent ID: 9113972
Filing Date: 2015-08-25
Classification: A61B

Abstract:
1. A multipiece fastener for stabilizing a synovial joint, comprising: an expandable outer sleeve member having an outer bone engaging surface comprising a helical thread for fixedly engaging with bone or tissue and an interior surface defining a first longitudinally extending passage; a first radially expandable portion of the outer sleeve member that extends about a portion of the first longitudinally extending passage and including at least a portion of the helical thread for engaging with a first bone or tissue of the synovial joint; an inner sleeve member having an outer surface and a leading distal portion configured to fit within and pass through the first longitudinally extending passage without expanding the first radially expandable portion of the outer sleeve member and a trailing proximal portion enlarged relative to the distal portion to engage with the first radially expandable portion of the outer sleeve member to urge the first radially expandable portion radially outward, and an interior surface defining a second longitudinally extending passage; a second radially expandable portion of the inner sleeve member for engaging with a second bone or tissue of the synovial joint; an expansion member having a body which is sized and configured to fit within the second longitudinally extending passage of the inner sleeve member and an outer surface portion configured to engage with the second radially expandable portion of the inner sleeve member to urge the second expandable portion radially outward.