Interbody spinal cage
AssigneeNew World Technologies and Data
InventorsNazmi Peyman, Edmond Zahedi, Steven Fiore
Life of this patent
Estimating the term…
Abstract
An interbody spinal cage when implanted can be manipulated non-invasively to change dimensions conforming to contours of adjacent vertebral bones. The interbody spinal cage includes a flexible shell that encases multiple variable-length rods. Each of the multiple variable-length rods includes telescoping tubes and an actuator for increasing and decreasing the length of the telescoping tubes. Each of the variable-length rods includes a retention member to limit movements of the telescoping tubes, wherein the retention member can be engaged and disengaged. Both the retention member and the actuator can be operated from outside the body in which the interbody spinal cage is implanted.
Claims10
An interbody spinal cage comprising:
- a plurality of variable length rods, wherein each of the plurality of variable length rods comprises:
- an inner tube that has a proximal end and a distal end;
- an outer tube that has a proximal end and a distal end, wherein the distal end of the inner tube is slidably received within the outer tube through the proximal end of the outer tube, wherein the inner tube is configured to telescopically slide within the outer tube;
- a retention member configured to limit movement of the inner tube relative to the outer tube;
- a retention member micro-actuator configured to selectively engage and disengage the retention member;
- and
- a tube actuator coupled to the distal end of the inner tube and configured to at least push the inner tube relative to the outer tube;
- and
- one or more shells, wherein each shell of the one or more shells encases two or more of the plurality of variable length rods, wherein each shell of the one or more shells is extensible in at least one direction, wherein the extension of each shell of the one or more shells is caused by the respective plurality of variable length rods.
Dependencies are inferred from the claim text.