7 results about "Spondylolisthesis" patented technology

An assembly for correcting spinal deformities may include at least lateral rods extending across adjacent vertebrae to be retained at either end by pedicle screws. A cross-coupler may be coupled to each lateral rod, and a longitudinal rod may run along the spine and be coupled to the lateral rods by the cross-couplers. The assembly may be used to correct spinal deformities by manipulating the pedicle screws or cross-couplers to rotate about the lateral rods or the longitudinal rod.

MEDICAL APPARATUS FOR SPONDYLOLISTHESIS REDUCTION

An assembly for correcting spinal deformities may include at least lateral rods extending across adjacent vertebrae to be retained at either end by pedicle screws. A cross-coupler may be coupled to each lateral rod, and a longitudinal rod may run along the spine and be coupled to the lateral rods by the cross-couplers. The assembly may be used to correct spinal deformities by manipulating the pedicle screws or cross-couplers to rotate about the lateral rods or the longitudinal rod.

The present application relates to the technical field of medical devices, and particularly relates to a spondylolisthesis lifting tool for minimally invasive surgery. The spondylolisthesis lifting tool for minimally invasive surgery comprises a connector, a fixing sleeve and a lifting sleeve. The connector comprises a connecting rod, a first connecting mechanism and a second connecting mechanism. The first connecting mechanism and the second connecting mechanism are arranged on the connecting rod at intervals. The first connecting mechanism comprises a fixed component and a movable component. The fixed component is connected with the fixing sleeve, and the movable component is connected with the connecting rod. The movable component can rotate or be locked with the fixed component as a reference. The second connecting mechanism is installed on the connecting rod and its position on the connecting rod can be adjusted and locked. The second connecting mechanism is connected with the lifting sleeve. The present application has a reasonable structure design, is convenient to operate, and can meet all the functions required in the process of spondylolisthesis reduction.

An instrument includes a distraction mechanism having a proximal end and an opposed distal end. The distal end includes opposed first and second end members. A first vertebral endplate spreader includes a proximal spreader section mounted to the first end member of the distraction mechanism. The first spreader also includes a distal spreader section operatively connected to the proximal spreader section for lateral movement relative to the proximal spreader section. A second vertebral endplate spreader is mounted to the second end member of the distraction mechanism. The distraction mechanism is configured and adapted to distract the spreaders apart and to retract the spreaders together along a distraction axis. The distal spreader section of the first spreader is configured to move relative to the second spreader in a lateral direction relative to the distraction axis for correction of vertebral alignment, as in treatment of spondylolisthesis, scoliosis, and the like.

Assemblies of one or more implant structures make possible the achievement of diverse interventions involving the fusion and / or stabilization of the SI-joint and / or lumbar and sacral vertebra in a non-invasive manner, with minimal incision, and without the necessitating the removing the intervertebral disc. The representative lumbar spine interventions, which can be performed on adults or children, include, but are not limited to, SI-joint fusion or fixation; lumbar interbody fusion; translaminar lumbar fusion; lumbar facet fusion; trans-iliac lumbar fusion; and the stabilization of a spondylolisthesis.

The invention discloses a vertebra staggered seam X-ray image intelligent identification method based on similar triangular structure labeling, and relates to the technical field of medical image processing. Comprising the following steps: S1, acquiring a vertebra X-ray image and imaging geometric parameters, and executing data preprocessing; s2, positioning a centrum region, obtaining key points of a similar triangular structure, and completing geometric consistency verification; s3, two-dimensional projection geometric representation is constructed, and three-dimensional space rotation representation of left and right lateral flexion is recovered in combination with imaging geometric parameters; meanwhile, the corrected three-dimensional position parameters of the segments are obtained; s4, non-linear energy representation is constructed, the vertebra dislocation degree is quantified, and dislocation state grading judgment is carried out; and S5, superposing and visually displaying the triangle-like structure, the three-dimensional space rotation representation and the vertebra staggered joint degree, and forming a structured report. The problem that deviation and misjudgment are prone to occurring in vertebra staggered seam recognition due to the fact that the three-dimensional rotation relation of the segments cannot be accurately recovered due to functional position X-ray projection distortion is solved.