Trochanteric femoral nail augmentable

Abstract

A device for bone fixation comprises a bone fixation nail extending from a proximal end to a distal end, the distal end having a helical structure configured to engage a bone, the proximal end having an opening extending thereinto and a first sleeve configured for insertion over a proximal portion of the bone fixation nail and through an intramedullary nail hole, the first sleeve permitting the bone fixation nail to move axially therewithin within a predetermined range of movement along with a locking screw configured to limit movement of the bone fixation nail relative to the first sleeve, the locking screw configured to lockingly engage the opening in the bone fixation nail and having a head and a threaded shaft extending distally therefrom.

Description

[0001] priority statement [0002] This patent application claims U.S. Provisional Patent Application Serial No. 61 / 435,036, filed January 21, 2011, entitled "Trochanteric Femoral Nail Augmentable" and U.S. Provisional Patent Application Serial No. 61 / 435,036, filed April 21, 2011, entitled Priority of patent application Serial No. 61 / 477,857, the entire disclosure of which is incorporated herein by reference. technical field [0003] The present invention generally relates to devices and methods for fixation and stabilization of intertrochanteric fractures. In particular, the present invention relates to a retractable multi-component bone fixation system having an outer sleeve configured to receive therethrough a bone fixation screw configured to lockably engage the bone . Once the nail has been positioned as desired relative to the outer sleeve, one or more locking screws and / or end caps are provided to lock the bone fixation screw in position. Background technique [0...

AI Technical Summary

Problems solved by technology

Such systems thus reduce the anchoring strength of the bone fixation device, increasing the likelihood of further fractures or other complications

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