54 results about "CERVICAL FIXATION" patented technology

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.

A cervical spine fixator and a screwdriver used therefore is disclosed wherein the fixator comprises plates (12, 212) for being adjoined to a cervical spine fixation region and a plurality of screws (14, 214). The plurality of screws are fixedly inserted into a patient's cervical spine and simultaneously coupled to the plates, wherein an adjacent region coupled with the screws in the plates is fixed with screw head fixture members (16, 216) having a protruder, which is deformed under the effect of pressure by a screw head when the screws are inserted and returns to their position of origin when the screw head is completely accommodated into the plates to be hitched by the screw head. The plates are formed thereon with receiving grooves (22, 222) for accommodating the screw head and the screw head fixture member. The receiving grooves are formed with openings into which the screws are inserted and a recess into which the screw head is received. The screw (214) formed with a groove of concaved curvature is installed or removed by a screwdriver (230) formed with a protruder of convex curvature, such that it is easy to manufacture, and the thickness of the plates is reduced, thus eliminating the feeling of a foreign substance after a surgical operation.

An adjustable occipital plate includes a central body portion having a plurality of arms extending therefrom in a generally Y-shaped configuration. Two of the arms include elongate slots for slidably receiving retaining members therein. Each retaining member includes a U-shaped channel for receiving a spine rod and a set screw. The central body portion and one arm include openings for receiving bone screws therein. Each of the arms may be angled with respect to the central body portion.

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 apparatus for connecting between an upper cervical vertebrae and a cervical fixation network that includes a screw for rotationally entering and gripping the upper cervical vertebrae. A bridge is configured to route between the cervical fixation network and the screw. A connector holding the screw and bridge together includes a portion of the screw and the bridge that is configured differently for a complementary, low profile engagement of the bridge and screw in which varying configurations of the connector and bridge, either alone, or in combination, are envisioned.

Cervical fixation devices, systems and methods for repairing odontoid fractures to the C2 vertebral body, including an anchoring feature that crosses the fracture site to be positioned external to the fractured bone fragment and which provides compressive and radial forces externally to the bone to immobilize the bone fragment(s) for fixation to the main bone structure.

A cervical immobilization collar incorporates one or more cooling elements for inducing a mild cerebral hypothermia by transcutaneous cooling of oxygenated blood flowing through carotid arteries. The immobilization collar includes an annular support structure having an extended axial length for limiting cervical compaction of a wearer's neck and a chin rest for limiting cervical rotation of the wearer's neck. In addition, the one or more cooling elements, which function as a heat extractor, are carried by the support structure in positions for inducing transcutaneous conduction of heat through an anterior portion of the wearer's neck from at least one of the wearer's carotid arteries.

An apparatus for stabilization of a patient's head relative to the patient's neck joint includes an occi-cervical base member having a “C’-shaped central part and first and second attachment rods respectively connected to and extending transversely from free ends of the central part. An occiput attachment has a first end slideably engaged to the central part and a flat, straight second end that extends radially outwardly relative to the first end. First and second polyaxial screw heads are adapted to be implanted in first and second occipital condyles of a patient, respectively. The first and second polyaxial screw heads are adapted to engage first and second stabilizing rods, respectively, that are placed in-line with the cervical spine of a patient and to engage the first and second attachment rods, respectively.

An implantable orthopedic assembly comprises an occipital plate and one or more repositionable clamping assemblies for securing a stabilizing rod to the plate. When unlocked, the clamping assembly may be laterally and rotationally repositioned along a supporting rail. Locking occurs when a stabilizing rod is secured in the clamping assembly. The rod exerts a force upon a locking component, causing the locking component to exert a force upon the supporting rail. This force pulls a surface of the clamping assembly base into contact with the rail, effectively locking the clamping assembly base at a fixed position. The clamping assembly may further comprise a loading component to exert a stabilizing force on the locking component, keeping the clamping assembly positionally stable while adjustments are made prior to locking.

A kit for cooling the blood in the carotid arteries includes a cervical immobilization collar and a cooling element. The cooling element may include a body-facing panel attached on a body-facing surface to a lining layer, an outward-facing panel, and cooling material disposed between the body-facing panel and the outward facing panel. The cooling material comprises urea and Carbamakool™ in an amount sufficient to produce a temperature of 20° F. to 35° F. within a minute of activation when measured on the body-facing surface of the body-facing panel.

The invention discloses a cervical spine injury transfer fixator and relates to the technical field of medical devices. The cervical spine injury transfer fixator comprises a lying board, wherein a plurality of supporting legs are fixed at the bottom of the lying board; universal wheels are arranged at bottoms of the supporting legs; two clamping blocks are oppositely arranged on the lying board in a sliding manner; a motor is arranged in a cavity; and a hollow shaft is coaxially fixed on a drum through coaxial fixed connection of a belt pulley mechanism and the output shaft of the motor. According to the cervical spine injury transfer fixator, opposite motion of the clamping blocks can be realized by adjusting an adjustment mechanism, the neck of a patient lying on the lying board can beclamped and fixed, an effect of fixing the cervical spine of the patient in a transferring process is ensured, and the occurrence of substantial shaking is avoided; massage bumps are driven to massagethe neck by rotation of the drum, and blood circulation of the neck is promoted; airflow can be jetted through vent holes in the massage bumps, air circulation around the neck can be promoted, and the comfortable degree of the neck in the clamping and fixing process can be greatly promoted.

An intervertebral spacer has curvate upper and lower rough surfaces that stimulate bone growth and is formed from a porous material that facilitates bone growth thereinto. The spacer has a plurality of smooth linear grooves to facilitate insertion of the spacer into an intervertebral space using a spacer insertion tool that has a scissor-style body. Each of the insertion tool's arm's heads has an inner surface having a pair of smoothed linear protrusions that fit within the linear grooves of the spacer when the heads are closed about the spacer. When the spacer is held, spaces are present between the spacer's rough surfaces and the heads' inner surfaces so that when the protrusions are longitudinally slid from the grooves to leave the spacer in the intervertebral spacer, the rough surfaces are not disturbed.

The invention relates to a cervical spine minimally invasive doubly-locked transplant system, which comprises a cervical spine forward board and a locked nail, wherein the length direction arc semidiameter of the cervical spine forward board is between 30 and 50 mm; a screw cap of the locked nail is provided with external threads, a locked hole of the cervical spine forward board is provided with internal threads, the cervical spine forward board is fixed on an adjacent cervical spine body which needs to be repaired by screwing a cross slot on the screw cap of the locked nail, the external threads of the screw cap of the locked nail and the locked hole with threads of the cervical spine forward board realize primary tight lock through taper fitting; the top of the locked nail is provided with an internal thread hole for locking taper fitting bolt, wherein the top end of the taper fitting bolt is provided with a hexagon locking groove, and the secondary tight lock of the locked nail and the locked hole of the cervical spine forward board is realized through tight lock and bulge of the taper fitting bolt in the internal thread hole of the screw cap. The transplant system realizes even and anastomotic contact of the cervical spine forward board and the cervical spine body, the doubly-locked tight nail is locked and not loose, the cervical spine is fixedly repaired without deformation, the time for recovery is fast and no sequela is remained after operation.

The invention relates to a cervical vertebra fixing device with an odontoid process fusing device, which comprises a main body fixing plate; the main body fixing plate is matched with at least two cervical vertebra fixing screws in a locking manner, wherein one side of the main body fixing plate adhered to the cervical vertebra is provided with a horizontal stretching fusing device which is provided with an axial fusing through hole; bone particles are arranged in the axial fusing through hole; and an odontoid process is arranged on at least one of upper and lower surfaces of the fusing device. Compared with the prior art, the stability and the reliability of the cervical vertebra fixing plate are both greatly enhanced, so that the problem of cervical vertebra fixing plate loosening and falling off from the cervical vertebra can be truly completely eradicated.

The invention discloses a novel cervical traction bed which comprises a bed base, centrum positioning contacts and a cervical vertebra fixing belt and further comprises a first movable bed board, a second movable bed board, lifting shafts and installing grooves. The first movable bed board is positioned on the bed base, the left side of the first movable bed board is movably connected with the left side of the bed base, the left side of the second movable bed board is movably connected with the right side of the first movable bed board, the first movable bed board is provided with a lifting device, the installing grooves are formed in the position, close to the right end, of the first movable bed board, the lifting shafts are installed in the installing grooves and supported below the centrum positioning contacts, and the cervical vertebra fixing belt is connected with the second movable bed board through a fixing device. The novel cervical traction bed can carry out multi-directional and fixed-point traction on a designated centrum, in a traction process, the human body can relax naturally, moreover, damage to the human body is reduced to minimum in the traction process, a treatment effect is improved, and pains of a patient are relieved.