655 results about "Cervical vertebral body" patented technology

Systems and method in accordance with embodiment of the present invention can includes a distractible implant comprising a distracting insert and a body having a first part and a second part adapted to be positioned between adjacent spinous processes of cervical vertebrae. The distracting insert can be inserted into cavities of the body, thereby urging apart the first part and second part, and distracting the adjacent spinous processes.

The present invention relates to prostheses for treating spinal pathologies, and more specifically to a system and method for treating articulating surfaces of cervical vertebrae facet joints. The system includes a superior implant for placement on a superior articulating surface and an inferior implant for placement on an inferior articulating surface. In addition, described is a method for providing articulating surfaces for cervical vertebrae facet joint articular facets.

Methods and systems for occipital-cervical spinal fixation. A plate configured for attachment to the occipital bone has two arms extending out from either side, which turn downwards parallel to one another. A first bend is disposed in the arms, such that the arms extend down from the occipital bone behind the spinous process of the C1 and C2 vertebrae, upon installation. A second bend in the arms allows attachment to the C2 vertebra. The system may be dimensioned for pediatric installation. A bone graft material may be held in place between the cervical vertebrae and the skull by installing a cable to the installed system to retain the bone graft material in place. Methods and kits for occipital-cervical spinal fixation are also disclosed.

An implant for positioning between the spinous processes of cervical vertebrae include first and second wings for lateral positioning and a spacer located between the adjacent spinous processes. The implant can be positioned using minimally invasive procedures without modifying the bone or severing ligaments. The implant is shaped in accordance with the anatomy of the spine.

A bone screw retaining system including an implant adapted to be applied the anterior human cervical spine for contacting anterior aspects of at least two cervical vertebral bodies, the implant having a plate that defines a plurality of transversely extending bores that extend along a longitudinal axis between an anterior surface and a posterior surface, each bore being configured to receive a bone screw for engaging the plate to the cervical spine. An elastically deformable spring member positioned therein a cavity of the plate such that portions of the spring member can extend into a portion of an upper region of each of the bores of a pair of opposing bores, the spring member being movable between a first relaxed, expanded position and a second, compressed position. In the first relaxed position, at least a portion of the spring member extends outwardly substantially transverse to the longitudinal axis of the bore and into the upper region of the bore and, in the second position, portions of the spring member are medially biased away from the longitudinal axis of the bore toward the outer wall of upper region of the bore, which increases the effective inner diameter of the upper region of the bore.

A disk prosthesis includes first and second plates (2, 3) to be fixed on neighboring cervical vertebrae and an articulation arrangement (7) inserted between the two plates in a superposed position. The articulation arrangement allows for flexion-tension movements in a sagittal plane (S) according to a limited clearance, lateral inflexion movements in a plane perpendicular to the sagittal plane (S) according to limited angular clearance, and relative rotation movements between the first and second plates according to a limited angular clearance. The first and second plates are assembled to form a prosthesis of a single piece.

A cervical spine brace and traction device incorporates a forwardly open head and jaw brace which is adjustably supported vertically above a forwardly collar member. The brace and the collar member have cooperating lateral wall sections having mating arcuate surfaces that are juxtaposed and which include interengaging means that assure they remain precisely angularly aligned with each other while the vertical spacing between them is being changed. Support of the brace and adjustment is by pairs of laterally extending brackets which interconnect with rotatable rod mechanisms that carry coaxial right-handed and left-handed lead screw surfaces. A miter gear affixed to each rod in a central location mates with a cooperative miter gear affixed to a horizontal shaft that carries a starwheel at one end which permits smooth and accurate patient adjustment.

An anterior cervical plate system consists of a base plate and a connecting plate movably connected to the base plate. The base plate can be inserted into any number of cervical vertebral bodies in any one construct. The base plate contains holes for two unicortical bone screws and a third hole to accommodate a rather large diameter, but short screw that movably secures the connecting plate, and raised middle portion to strengthen screw purchase and fit of the connecting plate. The connecting plate has a central trough opening to accommodate this screw.

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 method for treating a patient with laser energy to improve hearing loss. The method involves applying laser energy to the patient's spine, preferably by sweeping a linear laser beam over the patient's skin. The method may alternatively include applying laser energy to the patient's jaw, skull, ears, or a combination thereof. The laser device used for treating the patient is preferably a hand-held probe that moves freely relative to the patient's skin and can generate more than one wavelength of laser energy. In the preferred treatment, the patient is treated with a hand-held probe that emits two laser beams, one laser beam producing a pulsed line of red laser light and the other producing a pulsed line of green laser light. In the preferred embodiment, the patient's upper back, cervical vertebrae, cranial nerves, and temporomandibular joints are treated with laser energy for a total of less than 20 minutes in a single treatment.

A cervical collar can be adjustable with respect to a wearer's head and neck, and include a back portion positionable posterior to a wearer's neck. The collar can also include a member that extends anteriorly relative to the back portion, and can have a mechanism adapted to reposition a prominence of the member superiorly, inferiorly, anteriorly, and posteriorly relative to the portion while the collar is installed on the wearer. A method of enforcing a lordotic curve in a wearer's cervical spine is also disclosed including installing a cervical collar on the wearer, adjusting the cervical collar to fit the wearer's head and neck, and positioning a member so that the member extends anteriorly with respect to the back portion to an extent that is independent of a tightness of the collar about the neck.

A combination pressure release ergonomic pillow comprised of a body of the pillow having its top surface in a curve complying with ergonomic requirements of the human head and neck, a channel on one side or multiple channels on both sides, a slot at bottom of the body of the pillow, and insert(s) to be inserted into the channel(s); and a support inserted into the slot to support the back of head of the user; the insert being retractable to adjust the height of the pillow body to define optimal pressure release curve according to the individual user to protect the cervical vertebrae of the user.

Provided is a novel system that includes an anterior vertebral body plate with at least one bone spike pivotally attached to the plate and capable of being manually inserted into underlying bone to securely fix the plate to the bone. Also provided is a method of stabilizing cervical vertebrae using the disclosed system.

This invention discloses an intervertebral fixation device including a plate member, a body, and at least one bending portion disposed on the plate member. The thickness of the bending portion is slightly smaller than the thickness of the plate member and ear portions, such that the bending portion is provided for flexibly adjusting a curvature of the plate member of the intervertebral fixation device, and an ear portion and another ear portion on the plate member can be adjusted flexibly to be attached to the two cervical vertebrae, and the intervertebral fixation device can match with the physiological curvature of each patient's cervical vertebrae, so as to overcome the shortcomings of a conventional intervertebral fixation device having a protrusion after a surgical operation is performed, and prevent a locking element secured to a conventional intervertebral fixation device from being loosened, and avoid another surgical operation of a patient.

An intervertebral spacer for placing between two adjacent, upper and lower cervical vertebrae, the spacer being characterized in that it comprises a spacer body and retention means for retaining the spacer body in position against said vertebrae, the retention means comprising a strap and fastener means that are removable and self-blocking, enabling the ends of the strap to be secured to the spacer body, said spacer body comprising: a spacer part having two opposite ends, a portion of the first end being suitable for being inserted between said vertebrae; and top and bottom flanges connected via their bases to the second end of the spacer part and extending on either side thereof, each flange presenting an anterior face facing towards the spacer part and suitable for coming to bear against the posterior portion of the lamina of the upper or lower vertebra.

A traction device comprises a frame, a first bladder portion, a second bladder portion, a spacer, and a pump. The first bladder expands in an outward direction a distance greater than in a transverse direction. The second bladder expands in an angular direction. The second bladder is positioned generally below and to the side of the first bladder. Upon expanding in the outward direction, the first bladder bears against the back of the user's neck. Upon expanding in the transverse direction, the first bladder applies an angular traction to the cervical spine. Upon expanding in the angular direction, the second bladder bears angularly against the back of the user's upper thoracic region.

Provided is a novel system that includes a low profile anterior vertebral body plate and taper lock screws for the fixation and stabilization of the cervical spine, the anterior vertebral plate having a novel screw locking mechanism attached to the screw during the manufacturing thereof and providing a taper lock fit with the anterior vertebral plate. Also provided is a method of stabilizing cervical vertebrae using the disclosed device.

Provided is a novel system that includes a low profile dynamic anterior vertebral body plate and bone screws for the fixation and stabilization of the cervical spine, the system having a locking element through which the bone screw passes, the locking element being capable of movement relative to the plate when the bone screws are fully inserted and in a locked position. Also provided is a method of stabilizing cervical vertebrae using the disclosed system.

A human surrogate neck model includes a spinal neck region containing cervical vertebrae. A biosimulant intervertebral material is inserted between the cervical vertebrae. The spinal neck region is surrounded by a first silicone material mixed with a polymeric cross-linking inhibitor. One or more elastic tension bands are anchored to a top interface and a bottom interface of the neck model. A second silicone material mixed with a polymeric cross-linking inhibitor is applied to surround the spinal neck region and the first silicone material and to embed the tension bands. One or more of the elastic tension bands and/or a concentration ratio of the first silicone material or second silicone material to the polymeric cross-linking inhibitor can be adjusted for variable test conditions to closely simulate or mimic the static and dynamic characteristics of a human neck in various scenarios.

A system for regulating blood pressure by stimulating an afferent pathway to the brain which produces an efferent output in kidneys includes a electrode device adapted for implantation in the cervical region, a stimulator generator, a cable connecting the electrode device and the stimulator generator, wherein the cervical region is generally located between a pair of common carotid arteries, above an aortic arch and in front of cervical vertebrae C2 and C3. A method of implantation includes placing the electrode device in the cervical region, selectively energizing the device in accordance with a stimulation scheme, assessing any changes in the patient's blood pressure, selectively energizing the device in accordance with another stimulation scheme, and assessing any changes in the patient's blood, for determining an optical stimulation scheme, wherein stimulation scheme involves parameters including, for example, position, placement and configuration of the electrode device in relation to surrounding tissue and/or organs, selection of electrodes energized, width, frequency and amplitude of stimulation current.

Provided is a novel system that includes a low profile anterior vertebral body plate and closed thread screws for the fixation and stabilization of the cervical spine, the closed thread screw having an integral novel screw locking mechanism of an uppermost closed thread having a flat pitch, which engages and attaches the plate so as to lock the screw into the plate until an intentional, simultaneous combination of outward pulling force and counter-clockwise torque is applied to release the closed thread screw from the plate. Also provided is a method of stabilizing cervical vertebrae using the disclosed system.