Abstract: The present invention relates to methods and devices for the treatment of disc disease and spinal deformities with an artificial disc replacement.

Abstract: An artificial disc prosthesis is provided. The prosthesis enables spinal segment alignment by having a variable height across its surface. The variable height is achieved by an asymmetric artificial nucleus or by at least one variable height end plate. The prosthesis may have a central keel on one end plate and an offset pair of keels on a second end plate. The nucleus may engage a slot or trough in an inner surface of an end plate. The trough can be open on the posterior or anterior end to allow the nucleus to slide into the trough without undue distraction of adjacent vertebrae. The nucleus can be prevented from moving out of the trough by inserting a stop in the trough.

Abstract: A system for treating an aneurysm includes an expandable barrier positionable to bridge an aneurysm neck. The barrier may comprise a fiber mesh, a balloon or a molly anchor member, and may unroll, unfold, or inflate from a compact configuration to an expanded configuration. Expansion of the barrier may be greater radially than axially. A vaso-occlusive member comprising a coil or balloon may be deposited in the aneurysm. Another aneurysm treatment system comprises an outer fenestrated stent and/or an inner fenestrated sleeve, which may be implanted together adjacent an aneurysm neck to regulate blood flow to the aneurysm. The sleeve may be movable relative to the stent to open or occlude the fenestrations, which may vary in size, shape, and distribution. An intra-luminal vessel occlusion device comprises a stent and a sheath. A drawstring may be actuated to gradually close a sheath orifice to control blood flow through the vessel.

Abstract: A system and method for treating a defect. The system may comprise a first expandable barrier insertable into a defect interior space in a compact state and then expanded once positioned inside the defect. The first expandable barrier is expanded to be positioned against the inner surface of the defect. The system may also comprise a second barrier which may be expandable, positioned against the outer surface of the defect. Each of the first and second barriers may expand laterally to a greater extent than axially. The first and second barriers may be in communication through a connection member which couples the two barriers together. The barriers each obliterate the defect and can prevent subsequent CSF or other fluid leaks. Fibrin glue may be introduced into the defect to seal and secure the barriers to the defect. Each barrier may comprise a mesh, a basket, an umbrella or a balloon.

Abstract: A system for providing dynamic stabilization and balance control at a vertebral motion segment has first and second bridge elements and at least one bias element. The bridge elements anchor to adjacent vertebrae with polyaxially adjustable anchoring members, and the bias elements attach to each bridge element to span between them. Each bias element has two fixation portions and a bias body extending between the fixation portions. Each bias element may comprise an elastically deformable material to provide dynamic stabilization with motion, or may comprise rigid material to provide rigid stabilization, and both bias element types may be included in one system. The bias elements are attachable to the bridge elements at discrete attachment locations, or at non-discrete attachment locations. Alternate embodiments may include three or more bridge elements on adjacent vertebrae, and multiple bias elements. A tensioning tool may provide adjustable tension to an elastically deformable bias element.

Abstract: Methods and instrumentation for implantation of an intervertebral disc prosthesis are provided. A guide tool with sagittal and coronal reference features guides placement of guide pins relative to a sagittal plane and a coronal plane of the vertebrae. A retainer lockable to the guide pins has a ratcheting mechanism providing distraction or compression. A rasp, planer or other tools may be aligned to the retainer and inserted into the intervertebral space to prepare the vertebral endplates. An interoperatively adjustable trial is alignable to the retainer and measures an angularity of the intervertebral space. A prosthesis with keying features may be mounted to a prosthesis inserter with complementary features, held by pivotable arms and compressed between prongs. The inserter may be aligned to the retainer and advanced to implant the prosthesis in the intervertebral space. A prosthesis remover may grip one prosthetic end plate and extract the entire prosthesis.

Abstract: Methods and instrumentation for implantation of an intervertebral disc prosthesis are provided. A guide tool with sagittal and coronal reference features guides placement of guide pins relative to a sagittal plane and a coronal plane of the vertebrae. A retainer lockable to the guide pins has a ratcheting mechanism providing distraction or compression. A rasp, planer or other tools may be aligned to the retainer and inserted into the intervertebral space to prepare the vertebral endplates. An interoperatively adjustable trial is alignable to the retainer and measures an angularity of the intervertebral space. A prosthesis with keying features may be mounted to a prosthesis inserter with complementary features, held by pivotable arms and compressed between prongs. The inserter may be aligned to the retainer and advanced to implant the prosthesis in the intervertebral space. A prosthesis remover may grip one prosthetic end plate and extract the entire prosthesis.

Abstract: The present invention provides artificial disc prostheses, methods and instrumentation for implantation and revision thereof. Each prosthesis may comprise superior and inferior end plates and a nucleus positioned between articular surfaces of the end plates. The end plates may have planar bone engagement surfaces with a plurality of self-cutting teeth. The articular surfaces of the end plates may be planar or include a flattened portion. The nucleus includes superior and inferior articular surfaces which may comprise flattened portions such that when the articular surfaces of the nucleus and the end plates are placed in cooperation in a preferred orientation, the flattened and/or planar portions are aligned. Each prosthesis may provide flexion/extension, anterior/posterior translation, lateral bending, and/or axial rotation degrees of freedom.

Abstract: The present invention provides artificial disc prostheses, methods and instrumentation for implantation and revision thereof. Each prosthesis may comprise superior and inferior end plates and a nucleus positioned between articular surfaces of the end plates. The end plates may have planar bone engagement surfaces with a plurality of self-cutting teeth. The articular surfaces of the end plates may be planar or include a flattened portion. The nucleus includes superior and inferior articular surfaces which may comprise flattened portions such that when the articular surfaces of the nucleus and the end plates are placed in cooperation in a preferred orientation, the flattened and/or planar portions are aligned. Each prosthesis may provide flexion/extension, anterior/posterior translation, lateral bending, and/or axial rotation degrees of freedom.

Abstract: The present invention relates to methods and devices for the treatment of disc disease and spinal deformities with an artificial disc replacement.

Abstract: An artificial disc prosthesis is provided. The prosthesis of the present invention enables spinal segment alignment by having a variable height across its surface. The variable height is achieved by an asymmetric artificial nucleus or by at least one variable height end plate.

Abstract: An artificial disc prosthesis is provided. The prosthesis of the present invention enables spinal segment alignment by having a variable height across its surface. The variable height is achieved by an asymmetric artificial nucleus or by at least one variable height end plate.

Abstract: The present invention provides an implantable joint prosthesis configured to replace a natural joint, and methods for implantation. The prosthesis may include a first component implantable in a first bone, having a first bearing surface, and a second component implantable in a second bone, having a second bearing surface which corresponds to the first bearing surface. Each bearing surface may include a flattened section such that when the bearing surfaces are placed in cooperation with one another in a preferred orientation, the flattened sections are aligned. Alternatively, the bearing surfaces may have and asymmetric configuration, with non-congruent surfaces that may enable correction of deformity. Several types of implantable joint prostheses are disclosed, including: carpometacarpal, metacarpophalangeal, metatarsophalangeal, distal interphalangeal, proximal interphalangeal, ankle, knee, shoulder, and hip.

Abstract: An artificial disc prosthesis is provided. The prosthesis of the present invention enables spinal segment alignment by having a variable height across its surface. The variable height is achieved by an asymmetric artificial nucleus or by at least one variable height end plate.

Abstract: The present invention relates to methods and devices for the treatment of disc disease and spinal deformities with an artificial disc replacement.