660 results about "Cervical vertebral body" patented technology

An implant composed substantially of cortical bone is provided for use in cervical Smith-Robinson vertebral fusion procedures. The implant is derived from allograft or autograft cortical bone sources, is machined to form a symmetrically or asymmetrically shaped (e.g. a substantially “D”-shaped) implant having a canal running therethrough according to methods of this invention, and inserted into the space between adjacent cervical vertebrae to provide support and induce fusion of the adjacent vertebrae. Osteogenic, osteoinductive or osteoconductive materials may be packed into the canal of the implant to expedite vertebral fusion and to allow autologous bony ingrowth.

A device and method for a minimally invasive surgical implantation to reduce radicular symptoms by inserting an expandable cervical distraction implant in the facet joint and distracting the adjacent cervical vertebrae to increase the foraminal dimension. The implant, when positioned in the cervical facet joint, expands to via delivery of an inflation medium to increase the space between the vertebrae, thereby increasing the foraminal area or dimension, and reducing pressure on the nerves and blood vessels of the cervical spine.

A cervical fixation device, for insertion between a pair of adjacent cervical vertebrae, includes a frame comprised of a first material. The frame has a generally rectangular proximal end and a generally rectangular distal end. The distal end is connected to the proximal end by at least one upper arch and at least one lower arch. The upper and lower arches are spaced apart from each other. The frame has a generally hollow interior, substantially open lateral sides between the upper and lower arches and a substantially open proximal end.

A forward head position correction collar is provided which in combination includes a shoulder collar assembly, a chin mastoid piece for engaging and positioning the head of a wearer of the collar; and interconnecting means for interconnecting the chin piece to the collar assembly as to enable the chin piece to be manually and preferably incrementally adjustable with respect to the shoulder collar assembly in a Z-direction to thereby adjust the supported head of the wearer from the forward head position to an increasingly corrected position. The interconnecting means is further adapted for displacing the chin-mastoid piece in a vertical direction with respect to the shoulder collar assembly simultaneously with and proportional to the incremental adjustment of the chin-mastoid piece along the Z-axis. The proportional vertical displacement with respect to the z axis displacement for the chin-mastoid support piece is that yielded by a point moving at about a 5 to 25 degree slope with respect to the horizontal Z-axis. The correction collar may further include a lordosis correction assembly secured to the rear of the collar and engageable with the rear of the wearer for applying corrective forces to at least one or more of the cervical vertebrae of the wearer.

Systems and method in accordance with the embodiments of the present invention can include an implant for positioning within a cervical facet joint for distracting the cervical spine, thereby increasing the area of the canals and openings through which the spinal cord and nerves must pass, and decreasing pressure on the spinal cord and / or nerve roots. The implant can be inserted laterally or posteriorly.