263 results about "Pedicle screw" patented technology

A clinical vertebra image segmentation method for assisting pedicle screw placement surgery, said method comprising: constructing a VerseDiff-UNet end-to-end framework, the framework being integrated with a denoising diffusion probabilistic model (DDPM); combining a noise-added image with a marked mask by using the VerseDiff-UNet framework, and guiding a diffusion direction toward a target region; and introducing a shape priors module on the basis of the DDPM, and extracting structural semantic information from an input spine image. In order to capture specific anatomical prior information in a medical image, the shape priors module is combined and the module effectively extracts the structural semantic information from the input spine image, thereby enabling more accurate anatomical structure segmentation, and facilitating accurate diagnosis and treatment of spinal disorders.

The embodiment of the invention is suitable for the technical field of computer-aided medical treatment and image processing, and provides an automatic planning device and equipment for a pedicle screw and a computer program product. Extracting vertebral body outer layer point cloud data of a to-be-planned single vertebral body from the spine image data; the prediction model is used for processing the centrum outer layer point cloud data and outputting prediction coordinates, and the prediction coordinates comprise entry point coordinates and exit point coordinates; and the planning unit is used for planning the placement position of the pedicle screw based on the entry point coordinate and the exit point coordinate. By adopting the device, the planned position of the pedicle screw can be quickly and accurately predicted by using the deep learning model based on the point cloud data of the outer layer of the vertebral body, the data volume needing to be processed in the planning process is reduced, and the planning efficiency is improved.

Orthopedic fixation devices, assemblies, instruments, and methods relating to the same. The orthopedic fixation device may include a tulip head with one or more internal components configured to secure a bone fastener, such as a saddle, retaining clip, and friction ring. A spinal rod may be secured in the tulip head, for example, with a locking cap, thereby securing the bone fastener. One or more instruments, such as screwdrivers and correction instruments may be used for reduction, derotation, compression and / or distraction.

A pedicle screw includes a tulip head, a rod seat, a screw shank, and a retainer collar. The tulip head has an upper opening disposed in a top end of the tulip head and a lower opening disposed in a bottom end of the tulip head opposite the upper opening. The upper and lower openings form a single cavity extending through the tulip head from a top end to the bottom end. The rod seat is disposed within the cavity of the tulip head. Retention ledges of the rod seat engage opposing arms of the tulip head. The screw shank has a thread disposed along a length of the screw shank and a connector positioned at an upper end. The retainer collar has a pass through aperture, an expansion slit, and is disposed about the connector of the screw shank. Other embodiments are described and claimed.

The invention discloses a rod end pedicle screw connector and a spine stabilizing device, and the connector comprises a first maintaining part which is provided with a cylindrical cavity, a main accommodating groove and an extrusion cavity; the second retaining part is arranged in the columnar cavity and is fixed with the rod-shaped part; the main gland is screwed with the upper cavity wall of the columnar cavity; a first sub-gland for pressing the second holding member; the wrapping part is arranged in the extrusion cavity and used for clamping the ball head of the screw; a force transmission part is arranged between the wrapping part and the main gland and used for transmitting pressure applied by the main gland to the wrapping part. An elastic component is arranged in the columnar cavity and is provided with a first combining end and a second combining end, and the two combining ends are allowed to be close to or far away from each other and the first combining end is allowed to swing in any direction relative to the second combining end through elastic deformation; the first combination end is fixedly connected to the second holding part, and the second combination end is fixedly connected to the first holding part or the force transmission part.

Systems, methods, and apparatus are described herein for real-time tracking and monitoring of arrays and bones during a surgical procedure. For example, a tracking array (e.g., a surveillance marker) may be affixed to an implant to be inserted in a patient. The implant may be, for example, a pedicle screw or a cage. Affixing the tracking array to the implant may allow the surgeon to monitor the patient array location without an additional incision and / or a second imaging (e.g., additional patient radiation exposure).

Threaded bone implants, such as pedicle screws, are provided with an elongate body comprising a first portion, a second portion distal to the first portion, and a third portion distal to the second portion. The first, second and third portions may be provided with different features that correspond to first, second and third anatomical regions of interest in a vertebrae or other bone segment(s). The bone implants, systems, methods of manufacture, and methods of use disclosed herein may be used for the stabilization, fixation and / or fusion of the sacroiliac joint, the spine and or other bone segments.

The invention relates to the technical field of bone implants for minimally invasive surgery, and particularly discloses an implant for percutaneous minimally invasive thoracolumbar vertebral fracture, which comprises a vertebral body forming body, the vertebral body forming body comprises a vertebral body forming body head and a plurality of blade parts arranged at the rear end of the vertebral body forming body head in a surrounding manner, the vertebral body forming body head is provided with a needle guide hole penetrating along the axial direction, and the needle guide hole is communicated with the blade parts; a containing cavity is defined by the blade parts; the front end of the threaded guide rod and the head of the cone forming body are integrally formed, the needle guide hole penetrates through the threaded guide rod in the axial direction, and the rear end of the threaded guide rod extends out of the containing cavity; the pedicle screw is provided with a threaded hole penetrating in the axial direction, the threaded hole is in threaded connection with the threaded guide rod, the pedicle screw comprises a screw head and a threaded part arranged at the rear end of the screw head, and the screw head is arranged in the containing cavity and expands the blade part. According to the implant for the percutaneous minimally invasive thoracolumbar vertebral fracture, surgical wounds are reduced, the vertebral restoration effect is good, the stability of a vertebral formed body is guaranteed, and the surgical time can be saved.

Disclosed herein are embodiments of a system and embodiments of a method for stabilizing spinal vertebrae through a skin incision. In some embodiments, the system or method can include a first screw having a first screw head, a second screw having a second screw head, and / or a third screw having a third screw head, a first tower having a distal portion, a proximal portion, and a bend between the distal portion and the proximal portion, a second tower having a distal portion, a proximal portion, and a bend between the distal portion and the proximal portion, a third tower having a distal portion and a proximal portion, the third tower configured to be removably coupled with the third screw at a distal end of the third tower, and a rod insertion device configured to rotatably advance a connection element to at least the first and second towers.

A load sensing assembly for a medical implant is disclosed. The medical implant may include an upper surface, a side surface, a bottom surface, and a cavity housing various sensors and microelectronics. In other embodiments, the medical implant may include a port that is accessible through at least one of the bottom surface, side surface, and the upper surface. The port may be configured to receive an electronics assembly, package, or hermetically sealed enclosure. The electronics package may have a size and shape generally corresponding to the port. In various embodiments, electronic components and sensors may be powered by a local power source. In various embodiments, sensors may be chosen from: accelerometers, gyroscope, strain gauge, pressure sensor, pH sensor, impedance sensor, optical sensor, and / or a temperature sensor. In various embodiments, the medical implant may be chosen from: an interbody spinal implant, a pedicle screw, a connector, and / or a cross-link.

The invention belongs to the field of artificial intelligence and human spine automatic surgery, and discloses a double-view spine pedicle screw implantation multi-scheme fusion auxiliary guiding method which comprises the following steps: shooting X-rays on a spine part of a patient to obtain a patient spine normal position map and a patient spine side position map; according to the spinal normal position map image and the spinal lateral position map image of the patient, a spinal normal position map segmentation model and a spinal lateral position map segmentation model are obtained; according to the regional difference and the position relation of the three key structures in the spine image, the puncture point, the puncture direction and the termination point of the pedicle screw implantation operation probe are solved through image algorithms such as edge detection, multilateral fitting and angular point detection; the probe is punctured from the puncture entering point to the termination point in the puncture entering direction, and the probe is detected and tracked in the operation process, so that doctors are assisted in achieving the automatic operation.

Computer implemented method, computing device, system and computer pro-gram product to support selection between different types of pedicle screws (201-m) to be applied in a spine (202) comprising: generating a spinal 3D-model (MSpine) of a patient; generating a reinforcement 3D-model (MRod) of a reinforce-5 ment structure (30) for interconnecting vertebrae (2001-n) of the spine (202); generating a finite element model (FE) corresponding to the spinal 3D-model (MSpine) and the reinforcement 3D-model (MRod); applying a load onto the finite element model (FE) and determining loading factor(s) of the pedicle screws (201-m) using the finite element model (FE); and outputting an assessment of the plurality of different types of pedicle screws (201-m) based on the calculated loading factor(s).

Variations on improved pedicle screw coupling assemblies, along with methods for use of such assemblies provide improved functional characteristics over existing devices. A coupling assembly is capable of providing rigid fixed attachment between a pedicle screw fully seated to underlying bone and a member extending between adjacent pedicle screws. The coupling assembly includes a pedicle screw having a threaded shaft and a head portion. The head portion includes a driving feature and a proximally oriented bore having a bore diameter. In one version, the coupling assembly includes a member adapted to extend between adjacent pedicle screws. The member includes a protrusion adapted for insertion into the bore of the pedicle screw, the protrusion having a protrusion diameter that is larger than the bore of the pedicle screw head portion. In another version, the coupling assembly includes a spherical bore in the screw head. Additional implementations are described.

The invention provides a spinal pedicle screw implantation system based on a multi-modal image and MR navigation, and relates to the technical field of screw implantation, the system comprises a preoperative image processing module used for identifying bony characteristics of a patient and delimiting a screw implantation safety boundary according to the bony characteristics; and the bone image fusion navigation module is used for analyzing to obtain anatomical data of the patient, and calculating a screw implantation path according to a crown porcupine optimization algorithm in combination with bony characteristics. And the body position correction module is used for calculating the body position deviation value and synchronously adjusting the screw implantation path according to the body position deviation value and the screw implantation safety boundary. And the path risk early warning module is used for calculating the distance between the surgical tool and the key tissue in real time, and performing collision risk assessment and early warning. And the postoperative evaluation module is used for quantitatively evaluating the screw implantation precision and generating a postoperative report. According to the method, more accurate positioning can be provided for screw implantation, the accuracy of a screw implantation path is ensured, early warning is performed through extraction, a doctor is reminded to take measures in time, and operation safety is ensured.

Devices, systems, and methods for a robot-assisted surgery. A surgical robotic system with integrated navigation and multiple surgical arms may assist a user with one or more surgical procedures. In addition to the multiple surgical arms, the robotic system may also have peripheral arms to position a navigation camera and surgeon displays. The robotic system is collaborative to allow for easy integration into procedural workflows, for example, to install pedicle screws, interbody implants, or other surgical devices.

The present invention relates to a pedicle screw including a nail body, a positioning part and a holding part, wherein the positioning part has a first side and a second side facing the first side, in which the nail body has an end disposed on the first side and the holding part is disposed on the second side. The holding part has left and right ends exhibiting a symmetrical arc shape. Thus, when the spinal fixation surgery is conducted, the holding parts of the two adjacent pedicle screws are stacked on each other, and the cross sectional area occupied by the holding parts on the skin surface is reduced, thereby significantly reducing the corresponding opening width, so that the requirement on minimizing the extent of the wound and minimizing the damage of the soft tissue at the surgical site is satisfied.

A spinal fixation system including: a pedicle screw including a screw head, a screw tip opposite to the screw head, a screw body extending from the screw head to the screw tip, and a channel extending from a first opening defined in the screw head to a second opening defined at a side of screw body; a tulip head defining a cavity configured to accommodate the screw head, and defining a slot configured to accommodate a fixation rod; a nail including a nail head, a nail tip, and a nail body extending from the nail head to the nail tip, the nail body including a curved portion that is flexible; and an inserter for the nail configured to cooperate with the tulip head.

Systems and methods for automatically determining pedicle screw trajectories for surgery may be provided. A scan of a spine may be received, and positions of one or more vertebra and one or more components of the one or more vertebra in the scan may be identified. Next, a screw trajectory planning algorithm may determine an initial screw trajectory plan using the positions of the one or more vertebra and the one or more components. The screw trajectory planning algorithm may then determine a revised screw trajectory plan by revising the initial screw trajectory plan according to weighted factors.

A pedicle screw tulip head extender. The extender can include a mounting bar sized to fit and be secured into a pedicle screw tulip head of a fixed pedicle screw, the mounting bar having a central axis. An extender tulip head is disposed on an upturned end of the mounting bar, the extender tulip head having two opposing arms, each one of the two opposing arms including a portion of interior threads and extending from a curved lower surface defining a substantially U-shaped interior channel that can have a first channel axis disposed at a second elevation above the first elevation.

A surgical instrument includes a driver shaft couplable to a cannulated pedicle screw. The driver shaft having a through bore for conveying a surgical guide wire through the cannulated pedicle screw. The surgical instrument also includes a wire positioning assembly having a positional adjustment mechanism for adjusting an axial position of the surgical guide wire with respect to the cannulated pedicle screw and a locking mechanism for locking the axial position of the surgical guide wire. Additionally, the surgical instrument includes a driver actuator coupled to the driver shaft. The driver actuator is operable to rotate the driver shaft to drive rotation of the cannulated pedicle screw.

The invention relates to the technical field of intelligent medical treatment, in particular to a lumbar vertebral pedicle screw dynamic guiding method and system based on augmented reality, and the method comprises the following steps: constructing an entity lumbar vertebra skeleton model of a patient, and obtaining a cubic marker of the entity lumbar vertebra skeleton model to establish a lumbar vertebra skeleton space coordinate system; acquiring scanning data of the entity lumbar vertebra skeleton model based on the lumbar vertebra skeleton space coordinate system, and reconstructing a three-dimensional lumbar vertebra skeleton model according to the scanning data; combining the entity lumbar vertebra skeleton model and the three-dimensional lumbar vertebra skeleton model to obtain a lumbar vertebra skeleton virtual and real registration result; and obtaining a real-time path track of the lumbar vertebra pedicle screw according to the lumbar vertebra skeleton virtual and real registration result so as to realize dynamic guidance of the lumbar vertebra pedicle screw. According to the invention, through registration of the solid model and the three-dimensional model, dynamic guidance of the screw path is realized in combination with a risk early warning mechanism, and the accuracy and safety of implantation of the lumbar pedicle screw are improved.

Implants, systems, and methods for securing a flexible band, thereby providing a desired correction to the spine. The implant may secure the flexible band to a spinal rod and / or a pedicle screw. The implant has a locking mechanism to secure the band. The band may be looped around bony anatomy and tensioned to achieve correction and provide fixation as an alternative or supplement to pedicle screws and spinal rods during spinal deformity surgery. Tensioners may be used that allow for multiple positions for attachment between the tensioner and a band clamp inserter.

A tulip assembly configured to be coupled to a screw head having a first diameter includes a housing, wherein the housing defines an inner diameter configured to engage the first diameter of the screw head. The exemplary inner diameter of the housing being smaller than the first diameter of the screw head.

The invention involves a retraction distraction blade system suitable for use with retractor and distractor tools for the implantation of intervertebral implants into the spine area of an animal, particularly humans. The retractor distractor blade includes structures for attaching the blade to a retractor or distractor tool to provide visual access to a surgical site. The blade is provided with a threaded member connected to a flexible lasso for securement around a portion of a pedicle screw or bone screw. Once the lasso is secured to the pedicle screw, the retractor is prevented from moving out of the surgical site. Operation of the distractor or retractor tool can then be utilized to provide distraction to the spinal vertebrae for implant insertion or spinal alignment. Once the procedure is sufficiently complete, the lasso can be removed from the pedicle screws.

The invention discloses a minimally invasive degradable reduction device for thoracolumbar vertebral fracture, and relates to the technical field of medical instruments. The mounting mechanism is mounted on the outer wall of the connecting rod in a sleeving manner; the pedicle screw is movably inserted into the middle of the top end of the mounting mechanism; an implantation mechanism; through cooperative work of the connecting rod, the mounting mechanism, the pedicle screw and the connecting mechanism, the whole reduction device adapts to minimally invasive approach modes such as percutaneous puncture and can be implanted into the body of a patient through a percutaneous puncture channel, a skin incision of the minimally invasive approach is small, damage to surrounding tissue is greatly reduced, and the reduction effect is good. Due to the layered design of the screw body in the pedicle screw, bone tissue ingrowth is promoted while the supporting strength is kept, and the reduction device is made of degradable materials, can be gradually degraded along with fracture healing after an operation and is metabolized and absorbed by an organism, and does not need to be taken out through a secondary operation, so that physical and mental pain of a patient is relieved; and the medical cost and the potential risk of the secondary operation are also reduced.

Devices, systems, and methods for a robot-assisted surgery. A surgical robotic system with integrated navigation and multiple surgical arms may assist a user with one or more surgical procedures. In addition to the multiple surgical arms, the robotic system may also have peripheral arms to position a navigation camera and surgeon displays. The robotic system is collaborative to allow for easy integration into procedural workflows, for example, to install pedicle screws, interbody implants, or other surgical devices.

This invention relates to a novel P-approach endoscopic lumbar fusion surgery method, belonging to the field of lumbar fusion surgery technology. This method addresses the high risk of nerve injury and insufficient operational precision in existing endoscopic fusion techniques by proposing an improved solution. It utilizes Kirschner wires for positioning at the inferior articular process to establish a precise entry point avoiding the nerve root pathway; a visually guided circular saw is used throughout the endoscopic procedure to construct a safe triangular working channel directly reaching the spinal canal; under full endoscopic monitoring, a unilateral approach is used for bilateral spinal canal decompression, thoroughly removing diseased tissue and scraping the endplates until punctate bleeding occurs; a bone graft cannula with a curved tip is used to precisely implant the fusion device into the anterior region of the intervertebral space, restoring intervertebral height through a self-locking structure; finally, a universal pedicle screw is percutaneously implanted for fixation. This method reduces the risk of nerve injury, improves surgical safety and efficiency, and is suitable for patients with lumbar spondylolisthesis complicated by spinal stenosis.

A system for robotic spinal manipulation includes a robotic tool including one or more screw connectors. Each screw connector is configured to connect to a pedicle screw and to move with one or more degrees of freedom. The robotic tool also includes a controller configured to control a position of each of the one or more screw connectors and a connector configured to mate with a robotic arm.

The invention provides a split type kirschner wire and kit for an orthopedic surgery robot, and belongs to the technical field of kirschner wires. The split type kirschner wire comprises a front kirschner wire body used for puncturing bones and a rear kirschner wire body used for being connected with an end effector of the orthopedic surgery robot; the front kirschner wire body is detachably connected with the rear kirschner wire body. Compared with Kirschner wire bending operation in the prior art, after the split type Kirschner wire is driven into the human body, the front Kirschner wire body with the proper length can be obtained more conveniently and safely, the problem of positioning displacement or loss caused by excessive pulling of the Kirschner wire is solved, and the Kirschner wire is more convenient to use. After the front kirschner wire body is detached and separated, due to the fact that the connecting end of the front kirschner wire body is smooth and clean, follow-up balloon dilatation kyphoplasty or pedicle screw implanting operation is facilitated, operation risks are reduced, and related operation operations can be carried out more safely, more reliably and more conveniently.