Interbody spinal cage
OwnerNazmi Peyman, Edmond Zahedi +1inventors
InventorsNazmi Peyman, Edmond Zahedi, Steven Fiore
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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 include 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.
Claims20
A computer-implemented method comprising:
- receiving, by a processor, pressure data from at least one implanted spinal cage, the spinal cage comprising:
- a shell;
- a plurality of rods disposed within the shell;
- a plurality of pressure sensors, each pressure sensor being operatively associated with a respective rod and configured to generate pressure data;
- and
- a plurality of actuators, each actuator being operatively associated with a respective rod and configured to cause displacement of the respective rod relative to the shell;
- generating, by the processor, a pressure distribution map based on the received pressure data;
- computing, by the processor, one or more adjustment parameters corresponding to one or more of the actuators;
- transmitting, by the processor, control signals to the one or more actuators;
- and
- operating, by the one or more actuators in response to the control signals, to cause extension and/or repositioning of one or more rods relative to the shell so as to modify a pressure distribution at a bone-cage interface.
A method of correcting spinal disorders, comprising:
- implanting an interbody spinal cage comprising adjustable rods encased within a frame or shell;
- non-invasively disengaging one or more retention members;
- adjusting positions of one or more rods after implantation based on detected gaps or pressure distribution between the interbody spinal cage and adjacent bone members;
- and
- re-engaging the one or more retention members to lock the adjusted positions.
A system for adjusting an implanted interbody spinal cage, comprising:
- a processor;
- a memory storing executable instructions;
- a controller configured to transmit control signals to actuators of adjustable rods of the interbody spinal cage;
- an external energy source configured to energize one or more actuators or retention members of the adjustable rods;
- one or more pressure sensors embedded within the interbody spinal cage;
- wherein the processor is configured to analyze pressure data received from the one or more pressure sensors and generate control signals to adjust positions of the adjustable rods to optimize vertebral load distribution.
Dependencies are inferred from the claim text.