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Expandable push-in arcuate orthopedic implant

  • US 20070032871A1
  • Filed: 10/10/2006
  • Published: 02/08/2007
  • Est. Priority Date: 02/04/2000
  • Status: Active Grant
First Claim
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1. A push-in orthopedic implant for at least in part linear insertion at least in part between two adjacent bone masses, said implant comprising:

  • an upper member having a portion being at least in part arcuate adapted for placement toward and into contact with one of the adjacent bone masses, said upper member having at least one opening adapted to communicate with one of the adjacent bone masses, said upper member having a proximal end and a distal end;

    a lower member having a portion being at least in part arcuate adapted for placement toward and into contact with the other of the adjacent bone masses, said lower member having at least one opening adapted to communicate with the other of the adjacent bone masses, said openings of said upper and lower members being in communication with one another and adapted for permitting for the growth of bone from adjacent bone mass to adjacent bone mass through said implant, said lower member having a proximal end and a distal end corresponding to said proximal end and said distal end of said upper member, respectively, and a length between said proximal and distal ends, said upper and lower members articulating therebetween adjacent one of said proximal ends and said distal ends of said upper and lower members and allowing for expansion of the height of said implant, said upper and lower members having a first position relative to one another allowing for a collapsed implant height and a second position relative to one another allowing for an increased height; and

    at least one blocker adapted to cooperatively engage and hold at least a portion of said upper and lower members apart so as to maintain the increased height of said implant and resist the collapse of said implant to the collapsed implant height when said implant is in a final deployed position, said blocker being configured to rotate in a plane generally perpendicular to a longitudinal axis of said implant and to remain in said plane while transitioning said upper and lower members from said first position to said second position.

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