Patent ID: 9622876
Date: 2017-04-18
CPC Classifications: A61B,A61F

Claim:
1. An implantable device, comprising: a central mechanism comprising a proximal ring structure and a distal ring structure, said proximal ring structure and said distal ring structure interacting to form a mechanism such that said proximal ring structure and said distal ring structure can translate toward and away from each other along a longitudinal axis; and wherein said proximal ring structure includes a proximal ring structure opening between a first end and an opposing second end along said longitudinal axis, wherein said first end includes a first ramp and said second end includes a second ramp, wherein said distal ring structure includes a distal ring structure opening between a first end and an opposing second end along said longitudinal axis, wherein said first end of said distal ring structure translates along said longitudinal axis within said proximal ring structure opening between said first end and said second end of said proximal ring structure, and said second end of said distal ring structure translates along said longitudinal axis outside both said first end and said second end of said proximal ring structure, a first endplate having a central opening, wherein said first endplate is suitable to bear against a vertebra, wherein said central opening includes a perimeter defined in part by at least two longitudinal sides substantially parallel to said longitudinal axis and at least two opposing lateral sides transverse to said longitudinal axis, said first endplate having a first end adjacent one of said lateral sides of said central opening and extending longitudinally therefrom proximally along said longitudinal axis and an opposing second end adjacent the other of said lateral sides of said central opening and extending longitudinally therefrom distally along said longitudinal axis, wherein said first end includes a first complementary structure and said second end includes a second complementary structure; wherein said first ramp comprises a receiving structure capable of engaging said first complementary structure, wherein said second ramp comprises a protruding structure capable of engaging said second complementary structure.