15 results about "Pedicle screw fixation" patented technology

Pedicle bone anchor implants, assemblies, and methods thereof. The implant may include an expandable anchor having a body with expandable sections separated by one or more expansion joints, a plurality of expandable teeth, or an expandable head. The expandable anchor has a collapsed configuration and an expanded configuration, thereby creating a press-fit in adjacent bone.

The invention discloses a percutaneous minimally invasive lumbar pedicle screw fixing system and a matched instrument. The percutaneous minimally invasive lumbar pedicle screw fixing system comprises a shell; the telescopic rod is fixedly connected with one side of the shell; the end, away from the shell, of the telescopic rod is fixedly connected with the handle. The opening mechanism is located in the shell; the strip-shaped plate is located outside the shell and connected with the opening mechanism; the detection positioning devices are located on the two sides of the strip-shaped plate; the distraction mechanism comprises a first groove, a motor push rod, a trapezoidal sliding block, a special-shaped sliding block, a second groove and a first motor, the distraction mechanism distraction a gap of a bone needing to be treated, the operation space of a medical worker in an operation is increased, the medical worker can better observe and treat diseased tissue, and the medical worker is more convenient to use. Wherein the distraction mechanism can flexibly adjust the distraction angle and distance, the stability of a vertebral body is maintained, the subsequent operation of an operation is facilitated, a detection lamp can display the condition of the operation in real time, medical workers are helped to rapidly position, operate and correct, and the operation efficiency is improved.

The present invention relates to a device for treating vertebral deformities, consisting of two rods (1 ), suitably curved to correct the deformity, which are attached by means of pedicle screws (2) at the level of the thoracic and lumbar vertebrae, comprising a plurality of segments (6, 3, 8), aligned and joined by a bushing (4), equipped with a transversal pin (7) that delimits the separation movement of the respective consecutive segments coupled thereto and, between two consecutive bushings (4), a bushing (5) sliding on the intermediate segment (3) on which it is mounted. A tightener (10) connects the first upper segment (6) forming each rod (1 ) to the last lower segment (8), passing through all the intermediate segments (3) and is provided with a tightening means that keeps all the segments aligned to form a rigid rod, and a loosening means that allows the separation between the segments and the displacement of the bushings (5) along the segment (3) on which they are mounted, so that the rod (1 ) can be lengthened to allow the patient's growth and the anteroposterior movement of the spine.

The present invention discloses a posterior anatomical fixation plate device for axis pedicle fractures. A fixing screw for the axis pedicle is inserted into the left pedicle of the axis through a first screw hole, and is fixed to the fixed point of the right pedicle of the axis by passing through a second screw hole via the fixing screw for the axis pedicle. The middle part of the left member of the fixing plate includes a head end fixing plate and a tail end fixing plate, which are arranged in a ring shape. A connection structure is formed by using the left member of the fixing plate and the right member of the fixing plate. One end of the left member of the fixing plate is a left screw fixing part, and the other end of the left member of the fixing plate is connected to one end of the right member of the fixing plate by a locking screw, which can anatomically align and fix the two fracture ends during axis pedicle fractures, achieving fracture reduction and fixation. The structure of the present invention is simple and the installation is reliable, solving the problems of easy loosening, tail swinging, and withdrawal of the posterior simple pedicle screw fixation for axis pedicle fractures, as well as postoperative neck axial pain, nerve injury, and cervical spondylosis.

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 application discloses a kind of percutaneous minimally invasive lumbar pedicle screw fixation system and matching instruments, comprising: shell;Telescopic rod, telescopic rod fixedly connected shell side;Handle, telescopic rod is fixedly connected with handle at one end away from shell;Distraction mechanism, located in the shell interior;Strip-shaped plate, located in the shell exterior, and is connected with distraction mechanism;Detection positioning device, located in the two sides of strip-shaped plate;Distraction mechanism contains first recess, motor push rod, trapezoidal slider, special-shaped slider, second recess and first motor, the gap of the skeleton needing to be treated is opened by distraction mechanism, the operation space of medical staff is increased, and medical staff can better observe and handle pathological tissue, wherein the angle and interval of distraction mechanism can be flexibly adjusted, and the operation of subsequent operation is facilitated by maintaining the stability of vertebral body, wherein the detection lamp can display the situation of operation in real time, help medical staff to quickly locate, operate and correct, improve the efficiency of operation.

The invention discloses a spinal surgery pedicle screw fixing device which comprises a mounting screw seat, the lower end of the mounting screw seat is fixedly connected with a pedicle screw body, and a connecting titanium rod is arranged in a through groove in a penetrating mode; the first mounting wheel is arranged in the mounting nail seat, and a pressing block is arranged above the first mounting wheel; the second transmission wheel is fixedly connected to the lower end of the transmission rod; and the connecting groove is formed in the left end face of the mounting nail seat, and the interior of the connecting groove is connected with a limiting assembly. According to the vertebral pedicle screw fixing device for the spine surgery department, the connecting titanium rod can be bidirectionally positioned, the connecting high position can be adjusted when the connecting titanium rod is connected, meanwhile, the locking effect on the connecting titanium rod is improved, the connecting titanium rod is conveniently prevented from loosening and slipping, and the service life of the connecting titanium rod is prolonged. The problems that according to most existing pedicle screw fixing devices, a connecting rod is limited and fixed in the mode that a single screw plug is pressed downwards, the installation depth of a screw needs to be adjusted, and operation is troublesome are solved.

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.

Surgical instruments and methods to aid in reducing or urging a spinal fixation element into a pedicle screw or other implant are disclosed. Disclosed instruments and methods facilitate delivery of a setscrew or other closure, reduction of a rod or other spinal fixation element into a pedicle screw, and securing the rod relative to the pedicle screw using the setscrew. Example instruments and methods can utilize a reducer clip that couples to a proximal end of a pedicle screw receiver head or extension tabs thereof, an inserter-reducer shaft that can couple with a setscrew at its distal end, a reducer handle that can threadably engage with the reducer clip to translate the shaft and thereby reduce a rod, and a driver handle that can rotate the inserter-reducer shaft to engage the setscrew with threads formed on the pedicle screw or extension tabs thereof.

A pedicle screw-rod system capable of gradually changing from rigid fixation to non-rigid fixation is provided. The system includes a pedicle screw, a connecting rod, and a screw plug. The connecting rod is used for connecting in series the pedicle screw fixed to adjacent vertebrae on the same side of a spine, and the screw plug is used for locking the connecting rod on the pedicle screw intersecting therewith. At least one of two structural members of the pedicle screw or the connecting rod is connected by a flexible connecting part, and the flexible connecting part is also connected to degradable stoppers for preventing flexible parts from swinging with each other; and with gradual degradation of the degradable stoppers, a fixation manner of the pedicle screw-rod system will be gradually converted from initial rigid fixation into non-rigid fixation.

Provided in the present application is a comprehensive-orthopedic multi-indication artificial-intelligence surgical robotic system, comprising: a total hip arthroplasty module, which is used for performing preoperative planning, intraoperative total hip arthroplasty, and real-time display; a total knee arthroplasty module, which is used for performing preoperative planning, intraoperative total knee arthroplasty, and real-time display; a unicompartmental knee arthroplasty module, which is used for performing preoperative planning, intraoperative unicompartmental knee arthroplasty, and real-time display; a periacetabular osteotomy module, which is used for performing preoperative planning, intraoperative periacetabular osteotomy, and real-time display; a sports medicine module, which is used for bone tunnel planning, ligament reconstruction, and real-time display; a pedicle screw fixation navigation module, which is used for performing intraoperative navigation and positioning during pedicle screw fixation, and real-time display; and a trauma positioning and navigation module, which is used for performing intraoperative trauma positioning and navigation, and real-time display. By means of the embodiments of the present application, assistance can be quickly and accurately provided during surgery.

The invention discloses a universal pedicle screw fixing system, and relates to the technical field of medical instruments. Wherein one end of the connecting screw along the axial direction is a ball head part; the first screw hole, the first screw hole and the second screw hole are sequentially communicated in the axial direction of the screw base and penetrate through the two opposite end faces of the screw base in the axial direction, the first screw hole is provided with a first inner circumferential spherical surface connected with the ball head part in a matched mode, and the U-shaped opening extends to the first screw hole from the second screw hole in the axial direction of the screw base. The two U-shaped openings are located in the two opposite sides of the screw base in the radial direction respectively. The locking plug screw is connected with the first screw hole and abuts against the ball head part. An abutting plane and a U-shaped groove are respectively arranged on two opposite end surfaces of the U-shaped pressure seat along the axial direction; one end of the connecting rod penetrates through the U-shaped opening and the U-shaped groove and abuts against the screw base and the pressing base, and the pressing base abuts against the locking screw plug. The self-breaking screw plug is connected with the second screw hole and abuts against the abutting plane. The connecting effect of the connecting screw and the connecting rod on the screw seat can be enhanced, and the operation difficulty is reduced.

The invention relates to the technical field of medical surgical instruments, and discloses a pedicle screw track planning method and device, a terminal and a storage medium, and the method comprises the steps: obtaining a candidate screw track set of each target vertebral body; wherein each candidate screw track in the candidate screw track set is determined based on a screw entry point position and a direction vector; calculating a comprehensive score of the pedicle screw corresponding to each candidate screw track; wherein the comprehensive score is determined according to the safety of the pedicle screw, the fixing strength of the pedicle screw and the connectivity of multiple vertebral bodies; traversing screw track combinations formed by the candidate screw tracks of the target vertebral bodies on the same side, calculating a target score corresponding to each screw track combination, and taking the screw track combination with the highest target score as a target pedicle screw track set; according to the invention, safe, stable and efficient spinal screw implantation planning can be realized.

Pedicle bone anchor implants, assemblies, and methods thereof. The implant may include an expandable anchor having a body with expandable sections separated by one or more expansion joints, a plurality of expandable teeth, or an expandable head. The expandable anchor has a collapsed configuration and an expanded configuration, thereby creating a press-fit in adjacent bone.

The invention provides a targeting device for posterior cervical pedicle screw fixation, and belongs to the technical field of medical instruments. Comprising a targeting device main body, one end of the targeting device main body is fixedly connected with a clamping assembly, the clamping assembly is used for being clamped and fixed with the targeting device main body, and the clamping assembly is connected with the targeting device main body; the limiting assembly is used for assisting the target device to be attached to the bone surface, and the limiting assembly is connected with the clamping assembly. By arranging the clamping assembly and the limiting assembly, the clamping assembly not only can improve the stability of the whole device, but also is convenient to disassemble, so that independent matching with a pedicle screw is more convenient; the limiting assembly not only can perform stable triangular fixation on the bone surface, but also can be suitable for the uneven bone surface, and ensures that the limiting assembly is tightly attached to the bone surface, so that the targeting device keeps stable holding force, and displacement during operation is prevented.