A bioabsorable stent is disclosed. The stent is made of a polymer and/or non-polymer material and has an elongated body having a proximate end, a distal end, and at least one open channel formed on the exterior surface of the elongated body to provide fluid communication between the proximal end and the distal end. Also disclosed is a bioabsorable stent having an elongated center rod having a proximate end and a distal end and a plurality of leaflets extending outward from the center rod and forming channels between two neighboring leaflets to provide fluid communication between the proximal end and the distal end.

A device, system, and method for performing a spinal procedure. The device includes first and second shape-memory outer platforms, the outer platforms expanding at a temperature greater than the transformative temperature, a core member having first and second expansion bodies and first and second wedge members, the first expansion body being coupled to the first outer platform and the second expansion body being coupled to the second outer platform, and a screw rotatably disposed within the core member, the screw passing through at least a portion of each of the first and second wedge members. Rotation of the screw causes the first and second wedge members to move toward each other and the first and second expansion bodies to move away from each other. Thus, reaching a transformation temperature and rotating the screw expands the device to come in contact with and anchored against both of the adjacent vertebrae.

According to some embodiments, a method of accessing an intervertebral space of a patient's spine in a minimally invasive manner compromises creating a passage from a posterior end of a pedicle of a vertebral member using a probe, advancing the probe through the pedicle and to a main body portion of the vertebral member, advancing the probe through a superior endplate of the vertebral member and into the intervertebral space and enlarging the passage using at least one tap to create an enlarged passage from a posterior of the pedicle to the intervertebral space. In some embodiments, the enlarged passage traverses at least three cortical layers of the vertebral member.

The disclosure relates to a vertebral body implant including a flexible main body and at least one pedicle screw joint. The flexible main body is an integrally formed single piece having at least one joint-accommodating hole and at least one opening connected to the at least one joint-accommodating hole. The pedicle screw joint is an integrally formed single piece movably accommodated in the at least one joint-accommodating hole.

A bioabsorable stent is disclosed. The stent is made of a polymer and/or non-polymer material and has an elongated body having a proximate end, a distal end, and at least one open channel formed on the exterior surface of the elongated body to provide fluid communication between the proximal end and the distal end. Also disclosed is a bioabsorable stent having an elongated center rod having a proximate end and a distal end and a plurality of leaflets extending outward from the center rod and forming channels between two neighboring leaflets to provide fluid communication between the proximal end and the distal end.

An intervertebral implant comprising a body formed as an open truss structure, the body having a generally annular shape with a superior surface, an inferior surface, and a perimeter surface extending around an outer periphery of the body. The body has a central portion and a peripheral portion, the peripheral portion extending inward from the perimeter surface toward the central portion. The peripheral portion includes a first set of trusses having a first density of trusses, and the central portion includes a second set of trusses having a second density of trusses. The first density of trusses in the peripheral portion is greater than the second density of trusses in the central portion. The first set of trusses includes a first strut and a first node, and the second set of trusses includes a second strut, wherein the first node connects the first strut with the second strut.

The invention relates generally to generation of biomimetic scaffolds for bone tissue engineering and, more particularly, to multi-level lamellar structures having rotated or alternated plywood designs to mimic natural bone tissue. The invention also includes methods of preparing and applying the scaffolds to treat bone tissue defects. The biomimetic scaffold includes a lamellar structure having multiple lamellae and each lamella has a plurality of layers stacked parallel to one another. The lamellae and/or the plurality of layers is rotated at varying angles based on the design parameters from specific tissue structural imaging data of natural bone tissue, to achieve an overall trend in orientation to mimic the rotated lamellar plywood structure of the naturally occurring bone tissue.

A stent is disclosed that has an elongated body composed of a bioabsorbable polymer having a proximal end, a distal end, two open spiral channels formed on the exterior surface of the body to provide fluid communication between the proximal end and the distal end. The stent also has a central lumen open at the proximal and distal ends of the stent for the passage of a guide wire. A method for using the stent and a kit containing the stent are also disclosed.

Coiled spinal implants for disc, vertebral body, and spinal motion segment replacement or reconstruction comprise a plurality of loops and spaces between the loops, with the loops formed of a hollow material and having a plurality of apertures or a longitudinal gap that extend(s) through the sidewalls of the loops and into the hollow center. The coiled implants include one or more balloons within the hollow center, the spaces between the coil loops, and/or within the central void that the coil surrounds. Filling the balloon expands the loops and thereby increases the height of the coil. Bone graft material or bone cement may be deployed from the apertures or gap.

An implant including a peripheral frame portion defining a periphery of the body; a first helical bone contacting member attached to the body and disposed within the superior half of the implant; and a second helical bone contacting member attached to the body and disposed within the superior half of the implant. The implant also includes a first support member extending inwardly of the bone contacting member into a central region of the implant; and a second support member extending inwardly of the bone contacting members. The first support member and the second support member are substantially U-shaped and are connected to one another at the bottoms of the two U-shapes in the central region.