Adjustable patellar tendon realignment implant
AssigneeZkr Orthopedics, Inc.
InventorsDamien Shulock, Jeffrey Halbrecht, John Barrett, Katherine J. Stephenson
Life of this patent
Estimating the term…
Abstract
An orthopedic implant with an inferior portion having a tibia contact surface configured to extend over a tibia; a superior portion opposite to the inferior portion having a tendon contact surface configured to change a position of a patellar tendon by lifting or tilting the patellar tendon when the curved surface of the first portion is engaged with the tibia; a fixation mechanism adapted to attach the orthopedic implant to the tibia; and an adjustment mechanism adapted to change a distance between the tendon contact surface and the tibia contact surface. The invention also includes a method for repositioning a patellar tendon of a patient.
Claims11
An orthopedic implant comprising:
- an inferior portion having a tibia contact surface configured to extend over a tibia;
- a superior portion opposite to the inferior portion and disposed between the patellar tendon and the inferior portion, the superior portion having a tendon contact surface configured to change a position of a patellar tendon by lifting or tilting the patellar tendon when a curved surface of the inferior portion is engaged with the tibia;
- a hinge or pivot connecting the superior portion to the inferior portion;
- a fixation mechanism adapted to attach the orthopedic implant to the tibia;
- and
- an adjustment mechanism adapted to change a distance between the tendon contact surface and the tibia contact surface.
An orthopedic implant comprising:
- an inferior portion having a tibia contact surface configured to extend over a tibia;
- a superior portion opposite to the inferior portion having a tendon contact surface configured to change a position of a patellar tendon by lifting or tilting the patellar tendon when the curved surface of the first portion is engaged with the tibia;
- a fixation mechanism adapted to attach the orthopedic implant to the tibia;
- and
- an adjustment mechanism adapted to change a distance between the tendon contact surface and the tibia contact surface, wherein the adjustment mechanism comprises a piston disposed between the superior portion and the inferior portion.
An orthopedic implant comprising:
- an inferior portion having a tibia contact surface configured to extend over a tibia;
- a superior portion opposite to the inferior portion having a tendon contact surface configured to change a position of a patellar tendon by lifting or tilting the patellar tendon when the curved surface of the first portion is engaged with the tibia;
- a fixation mechanism adapted to attach the orthopedic implant to the tibia;
- and
- an adjustment mechanism adapted to change a distance between the tendon contact surface and the tibia contact surface, wherein the adjustment mechanism comprises a rotatable cam disposed between the superior portion and the inferior portion.
An orthopedic implant comprising:
- an inferior portion having a tibia contact surface configured to extend over a tibia;
- a superior portion opposite to the inferior portion having a tendon contact surface configured to change a position of a patellar tendon by lifting or tilting the patellar tendon when the curved surface of the first portion is engaged with the tibia;
- a fixation mechanism adapted to attach the orthopedic implant to the tibia;
- and
- an adjustment mechanism adapted to change a distance between the tendon contact surface and the tibia contact surface, wherein the adjustment mechanism comprises:
- an adjustable connection between the superior portion and the inferior portion adapted and configured to enable a user to move the superior portion along a ramp to change the distance between the tendon contact surface and the tibia contact surface;
- or
- a column fixed to, and extending up from, the inferior portion, and a plurality of connection slots to which the superior portion can be selectively engaged.
Dependencies are inferred from the claim text.