Patent ID: 11963885
Assignee: DEGEN MEDICAL, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 10:
11. An expandable intervertebral spacer having a longitudinal axis, said expandable intervertebral spacer comprising:
a main body defining a first opening, first and second substantially planar lateral surfaces disposed opposite each other with respect to said longitudinal axis, first and second curvilinear lateral surfaces adjacent and continuous with the first substantially planar lateral surface, third and fourth curvilinear lateral surfaces adjacent and continuous with the second substantially planar lateral surface, and an interior chamber bounded by the first and second substantially planar lateral surfaces and the first, second, third, and fourth curvilinear lateral surfaces;
a driving member having a lengthwise axis and disposed in the interior chamber and defining an opening;
a first endplate defining a substantially planar bottom surface and first and second curvilinear bottom surfaces adjacent and continuous with the bottom surface, the first endplate having a lengthwise axis;
a second endplate defining a substantially planar top surface and first and second curvilinear top surfaces adjacent and continuous with the top surface, the second endplate having a lengthwise axis; and
an actuation member extending through the first opening and disposed in the second opening;
wherein the driving member defines a first plurality of steps, and wherein each step of the first plurality of steps includes a surface that lies on a plane disposed at a non-parallel and non-perpendicular angle to the lengthwise axis of the driving member.