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191 results about "Lamina terminalis" patented technology

The median portion of the wall of the forebrain consists of a thin lamina, the lamina terminalis, which stretches from the Interventricular foramen (Foramen of Monro) to the recess at the base of the optic stalk (optic nerve) and contains the vascular organ of the lamina terminalis, which regulates the osmotic concentration of the blood. The lamina terminalis is immediately anterior to the tuber cinereum; together they form the pituitary stalk.

Cervical disc replacement

InactiveUS6908484B2Immediate and short-term relief from painInternal osteosythesisJoint implantsArticular surfacesSpinal column
An articulating joint implant for use in the cervical spine includes a pair of opposing upper and lower elements having nested articulation surfaces providing a center of rotation of the implant above the adjacent vertebral body endplate surfaces in one mode of motion lateral bending and a center of rotation of the implant below those surfaces in flexion / extension, and that further permit axial rotation of the opposing elements relative to one another about the longitudinal axis of the spinal column through a range of angles without causing them to move in opposing directions along the longitudinal axis within that range. In preferred embodiments, the articulation surfaces further cause such opposite movement of the opposing elements beyond that range.
Owner:HOWMEDICA OSTEONICS CORP

Method of performing a transforaminal posterior lumber interbody fusion procedure

An intervertebral implant for fusing vertebrae is disclosed. The implant has a body with curved, substantially parallel posterior and anterior faces separated by two narrow implant ends, superior and inferior faces having a plurality of undulating surfaces for contacting upper and lower vertebral endplates, and at least one depression at a first end for engagement by an insertion tool. The arcuate implant configuration facilitates insertion of the implant from a transforaminal approach into a symmetric position about the midline of the spine so that a single implant provides balanced support to the spinal column. The implant may be formed of a plurality of interconnecting bodies assembled to form a single unit. An implantation kit and method are also disclosed.
Owner:SYNTHES USA

Intervertebral spacer having a flexible wire mesh vertebral body contact element

A porous intervertebral spacer having a flexible wire mesh as a vertebral body contact surface, the flexible wire mesh preferably being a convex titanium mesh laser-welded at its perimeter to the spacer. The mesh is domed in its initial undeflected conformation, but deflects as necessary during insertion of the spacer between vertebral bodies, and, once the spacer is seated between the vertebral bodies, deforms as necessary under anatomical loads to reshape itself to the concave surface of the vertebral endplate, providing gripping and holding strength upon initial implantation, and an osteoinductive surface through which the bone may ultimately grow, making the fixation of the spacer between the vertebral bodies secure.
Owner:HOWMEDICA OSTEONICS CORP

Apparatus and methods for treating bone

ActiveUS20070055274A1Increased radialIncreasing diameter of coilInternal osteosythesisSpinal implantsFiberBobbin
Implants and methods for bone treatment, preferably minimally invasive treatment, including repositioning of vertebrae may comprise insertion of a bobbin having a wire, string, thread or band, coiled around the bobbin. During coiling, the diameter of the bobbing/band complex may increase. Such increase in diameter can push against the inner side of the endplates of the vertebral body, and augment the vertebral body to its original height. The implant may also take the form of a coiled sleeve which when inserted into the vertebral body is uncoiled. The force of the uncoiling sleeve pushes against the inner side o the endplates of the vertebral body, restoring the vertebral body to its original height. The implant may also take the form of fibrous masses comprised of a thread or other relatively thin structure, for example a fiber or strand, of any biocompatible material having desired characteristics, for example a shape memory alloy, titanium, stainless steel, another metal or metal alloy, a ceramic, a composite or any combination thereof. The, strand, thread or other fiber may be coiled, woven, matted, tangled or otherwise formed into a wool-like mass or body having a desired configuration. Expansion of the expandable member within the vertebral body or other bone may reposition the fractured bone to a desired height and augment the bone to maintain the desired height. A bone cement or other filler can be added to further treat and stabilize the vertebral body or other bone.
Owner:SYNTHES USA

Artificial intervertebral disc replacements with endplates

An artificial disc replacement (ADR) includes a pair of opposing endplate components, each attached to one of the upper and lower vertebrae, a cushioning component disposed between the endplate components; and a filler material contained within the cushioning component. The filler material may be a gas, liquid, foam, or gel, including a hydrogel. In a preferred embodiment, the ADR may further include one or more opposing, spaced-apart projections configured to impinge if the endplate components are subjected to an excessive force. Such projections may allow for unrestricted motion between the endplates until impingement, or may restrict translation between the endplates until a greater excessive force is reached. One or both of the endplate components may include a modified surface to increase adherence to the respective vertebral endplates.
Owner:RIVERBEND DESIGN +1
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