Abstract: This invention is an implantable device that enables non-invasive post-operative adjustment of the motion dynamics between two members of the human skeletal system. It may be used for dynamic stabilization of the spine. This device includes: a flowable substance; a reservoir implanted into the human body that contains this flowable substance wherein movement of moving portions of this reservoir causes the flowable substance to flow; and an energy-transducing mechanism wherein this mechanism transduces energy from a flow of the flowable substance into changes in the motion dynamics between the two members of the human skeletal system. This device may be used for: (1) non-invasive post-implantation customization of the device to reduce back pain for a particular patient; (2) non-invasive gradual adjustment of the device to correct spinal deformities; and (3) real-time adjustment to optimize spinal motion dynamics as the patent engages in different activities.

Abstract: This invention is an implantable device and system that allows post-operative, non-invasive adjustment of members of the skeletal system. It includes extension-resisting members and a compression-resisting member that connect members of the skeletal system. Post-operative, non-invasive adjustment of the tensions, lengths, widths, and/or torsions of the extension-resisting members changes the relative movement, position, or both movement and position of members of the skeletal system. The compression-resisting member may act as a fulcrum. This invention can help to pioneer the evolution of “smart” orthopedic devices that adjust skeletal biodynamics to address changing clinical needs and changes in patient activity over time. Some promising applications include: dynamic stabilization of the spine; correction of scoliosis; and bone elongation.

Abstract: This invention is an implantable device for dynamic stabilization of the spine that allows desirable spinal movement and prevents undesirable spinal movement. The device comprises: a longitudinal sequence of incompressible segments; a plurality of substantially-inelastic members that connect the segments through non-central channels; and a plurality of motion-dampening members. Desirable movement includes naturally-dampened flexion, extension, lateral bending, and torsion of the spine within a normal range of motion. Desirable movement may also include gradual correction of abnormal spinal curvature. Preventing undesirable movement includes preventing movement of the spine outside its normal range of motion. Preventing undesirable movement may also include alleviating intervertebral disc compression by providing vertebral support.