Shape memory implants and methods and apparatus for the loading and implanting thereof
AssigneeDePuy Synthes Products, Inc.
InventorsDaniel F. Cheney, Adam T. Knight, Joseph P. Ritz
Life of this patent
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Abstract
An orthopedic fixation system includes an orthopedic implant and an implant retainer. The orthopedic implant transitions between a natural shape and an insertion shape whereby a transition of the orthopedic implant from the natural shape to the insertion shape stores deliverable energy and a transition of the orthopedic implant from the insertion shape to the natural shape delivers stored energy. The implant retainer is configured to engage the orthopedic implant and constrain the orthopedic implant in the insertion shape such that the implant grip prevents a transition of the orthopedic implant from the insertion shape to the natural shape.
Claims23
An orthopedic fixation system, comprising:
- an orthopedic implant transitionable between a natural shape and an insertion shape whereby a transition of the orthopedic implant from the natural shape to the insertion shape stores deliverable energy and a transition of the orthopedic implant from the insertion shape to the natural shape delivers stored energy, the orthopedic implant, comprising:
- a bridge with a first end and a second end,
- a transition section disposed in the bridge, whereby the transition section deforms to move the orthopedic implant between the natural shape and the insertion shape,
- a first anchoring segment disposed at the first end of the bridge,
- a second anchoring segment disposed at the second end of the bridge,
- a first aperture extending through the bridge adjacent the transition section at a first side thereof, and
- a second aperture extending through the bridge adjacent the transition section at a second side thereof, the first aperture and the second aperture being spaced apart across the transition section;
- and
- an implant retainer configured to engage the orthopedic implant at the first aperture and the second aperture and constrain the orthopedic implant in the insertion shape thereby preventing a transition of the orthopedic implant from the insertion shape to the natural shape.
Dependencies are inferred from the claim text.