Abstract: A compression fastener system includes an elongate generally rigid coupling component, a toggle anchor at the distal end of the coupling component that can pivot about 90 degrees between inline and out of line with the coupling component, and a generally cylindrical collet that is engageable with a surface of the coupling component, and having two or more legs that splay upon passage of the coupling component through the collet, at least one leg having a cutting edge along at least a portion of its length that can engage with an adjacent rigid element, such as bone, to fix the rigid coupling component, toggle anchor and collet assembly into compression with the rigid element.

Abstract: A compression fastener system includes an elongate generally rigid coupling component, a toggle anchor at the distal end of the coupling component that can pivot about 90 degrees between inline and out of line with the coupling component, and a generally cylindrical collet that is engageable with a surface of the coupling component, and having two or more legs that splay upon passage of the coupling component through the collet, at least one leg having a cutting edge along at least a portion of its length that can engage with an adjacent rigid element, such as bone, to fix the rigid coupling component, toggle anchor and collet assembly into compression with the rigid element.

Abstract: The invention is directed in various aspects to a compression fixation system that includes coupling components and locking assemblies for connecting two or more separate elements in a fixed arrangement. For example, the system is useful for connecting and compressing two or more elements selected from bones and bone fragments. The system includes a substantially linear coupling component, such as, for example, a Kirschner Wire (“K-Wire”) and locking assembly elements that engage with the coupling component in a coaxial orientation. The coupling component includes at least a linear portion and an anchor portion, the anchor portion configured to be fixed within or adjacent to a first one of the elements to be connected and the linear portion configured to be fixed adjacent to a second one of the elements to be connected, where the locking assembly is attached coaxially with and locked against the second element to achieve compression and fixation.