Abstract:
An inter-transverse process spacer device for placement between two adjacent transverse processes, includes a spacer member with deformable first and second ends and may include a connector. The inter-transverse process spacer device may also include a flexible, fillable container for containing an injectable material that is compressible following implantation. The container is impermeable to the material it will be filled with. A structural mesh, for example, made of PET fabric and interwoven shape-memory alloy wire, provides structure for and containment of the container, as well as shape control of the inter-transverse process spacer device. The material can be injected into the container through a conduit. The inter-transverse process spacer device is sized and configured to allow for placement between adjacent transverse processes to produce a lateral force for correcting a spinal deformity. A method for correcting a spinal deformity using the inter-transverse process spacer device is also disclosed.
Abstract:
A surgical procedure and apparatus according to which force is applied to a member to compress the member, and the member is retained in its compressed state while it is inserted between two anatomical structures. The member is then allowed to move from its compressed state towards its original state and into engagement with the structures.
Abstract:
An expandable interspinous process implant is disclosed and can include a body and an injection tube extending from the body. The expandable interspinous process implant can be moved from a relaxed configuration to an expanded configuration in which the body is at least partially inflated around a superior spinous process and an inferior spinous process.
Abstract:
An interspinous spacer for placement between adjacent spinous processes includes a flexible, fillable container (e.g., a bag or balloon) for containing a material that is compressible during end use, for example, silicone after curing. The container is impermeable to the material it will be filled with. A fabric mesh, for example, made of PET fabric, provides structure for and containment of the container. The material can be injected into the container through an optional conduit, for example, a one-way valve.
Abstract:
An intervertebral process brace is disclosed and can include a frame that can support a first vertebral process and a second vertebral process. The intervertebral process brace can also include a first vertebral process support strap that can span a first portion of the frame. The first vertebral process support strap can engage the first vertebral process and bind the first vertebral process between the first vertebral process support strap and the first portion of the frame.
Abstract:
A method of treating a spinal condition includes attaching an anterior spinal motion device in an anterior region of a motion segment associated with the pair of vertebrae and attaching a posterior motion preservation device in a second region of the motion segment. The anterior spinal motion device may include an elastic material or a motion preserving disc prosthesis having at least one articulating surface.
Abstract:
Instruments and techniques for implanting non-rigid implants (30, 230, 330) are provided that include positively engaging the implant (30, 230, 330) between distal and proximal ends of the implant (30, 230, 330) at least adjacent the distal end of the insertion instrument (10, 60, UO) while deploying the implant (30, 230, 330) longitudinally and distaHy from the insertion instrument (10, 60, 110).
Abstract:
An intervertebral prosthetic device (30, 40) and method for spinal stabilization, according to which a prosthetic device is implanted relative to two vertebrae and is positioned so that the spinous process of at least one of the vertebrae extends into a notch (32d, 48a, 48b) formed in the device. At least one screw extends through the device and into the other vertebrae.
Abstract:
One embodiment of the present application includes a spinal disk prosthesis (30) with one end portion (32a) to form a load transmitting relationship with one vertebra of a patient's spine and another end portion (32b) to form a load transmitting relationship with another vertebra of the patient's spine. A tube (52) connects the end portions (32a, 32b) together and a damping material (60) is positioned inside the tube (52) . The end portions (32a, 32b) each include a magnet (40a, 40b) to generate a corresponding magnetic field. These magnetic fields are oriented to provide a repulsive force between the end portions (32a, 32b) to provide a magnetic bearing.
Abstract:
A retaining mechanism (30, 130) engages a bone fastener (60, 160) to a bone plate (12) as the bone fastener (60, 160) is positioned through a retaining mechanism (30, 130) in a plate hole while preserving multi-axial capabilities of the fastener (60, 160) relative to the plate (12) during insertion of the fastener (60, 160). When the head (66, 166) of the fastener (60, 160) is positioned adjacent the plate (12), the head (66, 166) can optionally be received in the retaining mechanism (30, 130) and expand the retaining mechanism (30, 130) to fixedly engage the retaining mechanism (30, 130) into locking engagement with the plate (12) and lock the bone fastener (60, 160) in position relative to the plate (12). In another form, the multi-axial capabilities of the bone fastener (60, 160) is preserved or at least partially preserved when the bone fastener (60, 160) is finally positioned in the retaining mechanism (30, 130).