Bone fixation devices, systems, and methods
AssigneePS Ortho LLC
InventorsEdward PEREZ, Jan SZATKOWSKI, Nephi ZUFELT, Corey JOHNSON
Life of this patent
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Abstract
An intramedullary nail includes a shaft between a proximal end and a distal end. The distal end includes a first bend that extends from an anterior side of the intramedullary nail toward a posterior side and a second bend that extends from the posterior side toward the anterior side of the intramedullary nail. The two bends transfer an insertion force on a distal end of the intramedullary nail to, and along a longitudinal axis of the shaft of the intramedullary nail.
Claims20
An intramedullary nail assembly for a long bone of a patient, the assembly comprising:
- an intramedullary nail comprising:
- a lateral side, a medial side, a superior side, an inferior side, an anterior side, and a posterior side;
- a proximal end comprising a point and a distal end;
- a shaft between the proximal end and the distal end;
- and
- an offset section proximal to the distal end, wherein the offset section comprises:
- a first bend that extends from the anterior side of the intramedullary nail toward the posterior side of the intramedullary nail;
- and
- a second bend that extends from the posterior side of the intramedullary nail toward the anterior side of the intramedullary nail.
An intramedullary nail system for a femur of a patient, the intramedullary nail system comprising:
- a lateral side, a medial side, a superior side, an inferior side, an anterior side, and a posterior side;
- a proximal end comprising a point and a distal end;
- a longitudinal axis that extends from the distal end to the proximal end;
- a shaft between the proximal end and the distal end;
- a first bend proximal to the distal end and angled posteriorly in relation to the longitudinal axis;
- a second bend between the distal end and the first bend, the second bend angled anteriorly in relation to the longitudinal axis;
- and
- a body between the first bend and the second bend.
A method for deploying an intramedullary nail that includes an offset section within a femur of a patient, the method comprising:
- coupling an intramedullary nail that includes an offset section to an intramedullary nail inserter, the intramedullary nail inserter coupled to the offset section, the intramedullary nail comprising a longitudinal axis and the offset section comprising an offset axis substantially parallel to the longitudinal axis;
- preparing an intramedullary canal of a femur of the patient, the intramedullary canal extending from a distal end of the femur to a proximal end of the femur;
- inserting a proximal end of the intramedullary nail into a distal end of the intramedullary canal;
- driving the intramedullary nail into the intramedullary canal toward the proximal end of the femur by driving the offset section along the offset axis, the offset axis transferring a translation force applied to the offset axis to the intramedullary nail to drive the intramedullary nail along the longitudinal axis;
- sliding the offset section past a distal femoral component of a knee implant positioned proximal to a distal end of the femur such that the offset section engages an internal wall of the intramedullary canal and maintains flexion of a distal portion of the femur;
- and
- decoupling the intramedullary nail from the intramedullary nail inserter.
Dependencies are inferred from the claim text.