US 12,144,528 B2
Bone fixation systems and nail having compressive threading
Mark B. Sommers, Beaverton, OR (US); Steven P. Horst, Dayton, OR (US); James G. Falkner, Jr., Beaverton, OR (US); Scott F. Mastroianni, Forest Grove, OR (US); Bill McNabb, Hillsboro, OR (US); and Gregory D. Hutton, Aloha, OR (US)
Assigned to Acumed LLC, Hillsboro, OR (US)
Filed by Acumed LLC, Hillsboro, OR (US)
Filed on May 26, 2022, as Appl. No. 17/825,618.
Claims priority of provisional application 63/194,456, filed on May 28, 2021.
Prior Publication US 2022/0378484 A1, Dec. 1, 2022
Int. Cl. A61B 17/72 (2006.01); A61B 17/86 (2006.01)
CPC A61B 17/7233 (2013.01) [A61B 17/863 (2013.01); A61B 17/8645 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A system for compressing a first bone part and a second bone part separated by a fracture, the system comprising:
a nail having an elongate smooth portion and an elongate threaded portion, the elongate smooth portion including a leading end of the nail and the elongate threaded portion including a trailing end of the nail, the elongate threaded portion including a first end opposite the trailing end and a thread extending from the first end to the trailing end, wherein the thread has a decreasing pitch from the first end to the trailing end, and wherein the elongate threaded portion further includes at least one aperture extending through a central axis of the nail, a central axis of one of the at least one aperture is non-perpendicular to the central axis of the nail; and
at least one screw sized to be positioned through the at least one aperture;
a nail installation instrument comprising:
a first portion configured to couple to the trailing end of the nail;
a second portion having a targeting connector coupled to a targeting block and to the first portion of the nail installation instrument, the targeting block including a plurality of guide holes; and
a plurality of cannulas configured to be inserted into the guide holes of the targeting block,
wherein the first portion of the nail installation instrument is configured to rotate with the coupled nail independently from the second portion of the nail installation instrument,
wherein the at least one aperture comprises a first aperture and a third aperture each extending through the central axis of the nail,
wherein the first and third apertures are positioned along the elongate threaded portion such that, when the elongate threaded portion of the nail is installed across the fracture separating the first bone part and the second bone part, the first aperture is within the first bone part and the third aperture is within the second bone part.