186 results about "Vertebral bone" patented technology

Provided herein are an anchor and interbody for interbody fusion, including an interbody for insertion between human vertebrae, including an interbody cage including a plurality of anchor receptacles, each anchor receptacle configured to receive an anchor to secure the interbody to a vertebra; and the anchor, including a head configured to engage an anchor receptacle; a curved partial-tubular shank with a convex curve, connected to or integral with the head at a distal end of the head, and extending from the head; a tapered tip portion extending from a distal end of the curved partial-tubular shank; one or more rails integral with or connected to an outside surface of the anchor, extending from a proximal end of head and along the curved partial-tubular shank to a proximal end of the tapered tip portion; and a feature formed from two flat surfaces on an outside of the anchor and a rail.

A spinal implant device includes a unitary strand extending from a first end to a second end. The unitary strand includes an exterior surface defining an infill volume with an infill structure. The exterior surface extends from the first end to the second end. A first bead is formed in the strand has a first diameter. The second bead is formed in the strand has a second diameter. At least one joint is formed in the strand between the first bead and the second bead. The at least one joint has a third diameter that is less than the first diameter and less than the second diameter.

The invention relates to a spinal degenerative disease grading early warning and rehabilitation management system and method, and belongs to the technical field of medical equipment. The system comprises a system control module, a first-stage detection module, a second-stage detection module, a third-stage detection module, a data processing module, an evaluation module and a rehabilitation management module. The first-stage detection module is used for acquiring foot pressure distribution data of a patient; the secondary detection module collects electromyographic signal data of muscles around the spine of the patient; the third-stage detection module is used for collecting vertebral bone mineral density data of the patient. The data processing module is used for preprocessing and analyzing the collected data; the evaluation module is used for carrying out grading evaluation on the spinal degenerative lesion; and the rehabilitation management module formulates a personalized rehabilitation scheme according to the evaluation result. The system adopts a logic mechanism of hierarchical detection and hierarchical intervention, automatically adjusts intervention measures according to different evaluation indexes, and realizes accurate rehabilitation management. The risk of spinal degenerative diseases is found in an early stage, a targeted rehabilitation scheme is provided, and spinal diseases are effectively prevented and managed.

A multi-portal method for treating a subject’s spine includes distracting adjacent vertebrae using a distraction instrument positioned at a first entrance along the subject to enlarge an intervertebral space between the adjacent vertebrae. An interbody fusion implant can be delivered into the enlarged intervertebral space. The interbody fusion implant can be positioned directly between vertebral bodies of the adjacent vertebrae while endoscopically viewing the interbody fusion implant using an endoscopic instrument. The patient’s spine can be visualized using endoscopic techniques to view, for example, the spine, tissue, instruments and implants before, during, and after implantation, or the like. The visualization can help a physician throughout the surgical procedure to improve patient outcome.

Provided is a system that is capable of easily placing an interbody spacer accurately in a predetermined position between vertebral bodies using the PLIF procedure, even in a narrow surgical field. The system has an interbody spacer including a pair of contact surfaces to be in contact with vertebral bodies, a ventral surface which is a side surface on a ventral side having a convex shape in plan view and which connects the pair of contact surfaces on the ventral side, a ventral groove formed along the curved direction on the ventral surface, and an interbody spacer engagement portion having a radius of curvature smaller than a radius of curvature of the ventral surface, formed on a bottom surface of the ventral groove. The system has a guiding tool for guiding the interbody spacer to a predetermined position between the vertebral bodies, the guiding tool including a guide rail to be fitted into the interbody spacer engagement portion on a distal end side, a handle portion to be grasped by the surgeon outside the patient's body on a proximal end side, and a guide rail engagement portion on a distal side of the guide rail having a radius of curvature in plan view which is the same as the radius of curvature of the interbody spacer engagement portion in plan view.

An expandable prosthetic implant for engagement between vertebrae includes a first member having a first end, a second end, a plurality of extensions and a hollow interior portion extending from the first end to the second end, wherein the plurality of extensions extend from the first end to the second end. A second member includes a first end, a second end, a hollow interior portion extending from the first end to the second end, and a plurality of extensions extending from the second end to the first end. The plurality extensions of the first member are configured to coaxially interdigitate with the second member, and the plurality of extensions of the second member are configured to coaxially interdigitate with the first member. The first member of the implant is moveable relative to the second member along a longitudinal axis.

An interbody cage for the spinal column structured as a scaffold made of at least two folding and unfolding scaffoldings: one base member (also named a cage body) which receives the pivoting means of a pivoting member (also named an extension member), and one extension member, structured to pivot around an axis on the cage body from a first folded or stowed configuration to a second unfolded or deployed configuration such that the perimeters of the contact surfaces between the interbody cage and the vertebrae and / or the height of the interbody cage increase from the stowed configuration to the deployed configuration.

A biomimetic intervertebral fusion device with a piezoelectric multifunctional coating belongs to the field of implantable medical devices. It includes an upper piezoelectric multifunctional coating, a fusion device body, and a lower piezoelectric multifunctional coating. A bone graft window is located in the middle of the biomimetic intervertebral fusion device. The piezoelectric multifunctional coating is made of electrospun piezoelectric PVDF / HA fibers, which are conformally adhered to the upper and lower surfaces of the fusion device body through a polydopamine adhesive layer. The upper and lower surfaces of the fusion device body have a biomimetic curved surface configuration to match the morphology of the vertebral endplates, increasing the contact area and reducing stress concentration at the fusion interface. While maintaining an elastic modulus similar to natural bone and good radiation permeability, this fusion device, after implantation, can create a microenvironment conducive to cell adhesion and proliferation. Under the influence of cell traction, ultrasonic stimulation, and the physiological load of the human lumbar spine, it generates electrical stimulation signals, promoting bone fusion, improving the stability of the fusion interface, and reducing the risk of postoperative loosening and subsidence of the fusion device.

An intervertebral implant for implantation in an intervertebral space between vertebrae. The implant includes a body extending from an upper surface to a lower surface. The body has a front end, a rear end and a pair of spaced apart first and second side walls extending between the front and rear walls such that an internal chamber is defined within the front and rear ends and the first and second walls. The body defines an outer perimeter and an inner perimeter extending about the internal chamber. At least one of the side walls is defined by an integral porous structure.

The invention relates to the technical field of poultry determination, and provides a vertebra body size character determination method and device.The method comprises the steps that a three-dimensional CT image of poultry is obtained, and the three-dimensional CT image is segmented into a plurality of two-dimensional cross section images along the Z axis; wherein each two-dimensional cross section image is divided into a corresponding Z-axis index number; for each two-dimensional cross section image, obtaining a target two-dimensional cross section image marked with a target vertebra detection frame by using a target vertebra detection model; and determining the body size character of a target vertebra according to the target vertebra detection frame and the Z-axis index number of the target two-dimensional cross section image. According to the method, through combination of three-dimensional CT imaging layering processing and the Z-axis index number, accurate association between the two-dimensional image and the three-dimensional space position is established, and through combination of accurate positioning of the target vertebra detection model, the accuracy of vertebra body size character measurement of a lossless living body is improved.

The invention relates to a system comprising an anterior cervical plate (10) with receiving openings (12) for bone screws and a locking mechanism for inserted bone screws that are screwed to a vertebral body and press the cervical plate against the vertebral body. The locking mechanism has a plate-like locking body which is moveably held on the cervical plate and can be moved from a position in which it leaves a receiving opening as freely accessible as possible into a locking position in which the screw head lying in the receiving opening is covered by the locking body and thus the migration of the screw out of the cervical plate is prevented. In order to provide maximum flexibility in the design of the cervical plate while maintaining a high degree of security against loosening of the bone screws and being easy to operate, the locking body is formed by a thin disc (16) which is fixed to the anterior cervical plate so as to be rotatable about an axis of rotation substantially perpendicular to the cervical plate (10) and which has, angularly distributed over the circumference, at least one locking arm (18-1, 18-2) and a support portion (20) lying in the disc plane, which snaps into a catch position via a rotation of the disc (16) about a predetermined angle of rotation (WD), and can be removed again via a counter-rotation of the disc (16).

A device for augmenting a vertebra. The device includes an expandable implant and a pedicle anchor. The pedicle anchor includes at least one anchoring element movably coupled to an anchor body. An actuator is movable within the anchor body to deploy the anchoring element into engagement with a vertebral pedicle. The anchoring element may be deployed in a same plane as a tissue support ski of the expandable implant. The actuator may be a rod including a knuckle or a cam. The tissue support ski may be recessed from an outer profile of the device. Struts of the expandable implant may be angled towards the tissue support ski in an insertion configuration. The device may be oval-shaped and provide means for rotating the expandable implant relative to the pedicle anchor, and for blocking the expandable implant in a predetermined orientation. Methods of deploying the device are also disclosed.

A pedicle-lengthening implant may comprise an outer screw body configured to be inserted through a pedicle of a vertebra. The outer body has an upper portion and a lower portion. An inner bolt is disposed within the outer screw body, defining a longitudinal axis and configured to interact with each of the upper and the lower portions. Rotation of the inner bolt about the longitudinal axis causes the upper and lower portions of the outer screw body to separate axially along the longitudinal axis. The outer body may comprise external threads configured to engage bone of the pedicle. The inner bolt includes a threaded rod that engages first internal threads of the upper portion and internal threads of the lower portion at an inner bore of the outer screw body. The first internal threads of the upper portion and internal threads of the lower portion may have opposite thread directions.

The invention relates to a vertebral stabilization device comprising at least two screws having a first section engageable in the vertebra and a second threaded section separated by a flange, at least one first connecting rod for connecting the second section of the screws, and at least one second connecting rod for connecting the second section of the screws, and at least a first fixing assembly and a second fixing assembly for fastening the rod to the screw. Each securing assembly includes at least one gripper arranged to grip the first rod and a nut. The gripper includes a first jaw and a second jaw that are identical and held together by a resilient member. According to one variation of the invention, the device may include a third securing assembly having at least one gripper having a first jaw and a third jaw having an inner surface identical to the first jaw inner surface and an outer surface complementary to the second jaw outer surface.

The present invention relates to a system and a method for planning veterinary orthopedic surgery, for restoring volume and / or geometry of a bone, by expansion of at least one expandable bone implant (1) between a folded configuration and a deployed configuration, the implant comprising a body extending along a longitudinal axis (L) between a proximal end (11) connectable to an implantation instrument (A) for holding the implant and a distal end (12) intended to be inserted first into the bone, wherein the system comprises a plurality of expandable bone implants (1) and at least one implantation instrument (A) corresponding to each of the implants (1) and at least one planning support presenting the implants (1) and instrument (A), with reference to at least one standardized classification of the various types of fractures identified, in particular vertebral compression fractures, the planning support being capable of being implemented in the form of a human-machine interface.

The invention relates to an implant for connecting adjacent vertebrae, comprising a front side, a back side opposite the front side in the thickness direction of the implant, at least two through-openings extending longitudinally between the front side and the back side and designed to receive a fastening screw, and at least one bending section that is plastically deformable under the influence of a bending tool on the implant in order to intraoperatively adapt a longitudinal curvature of the implant extending along a longitudinal axis of the implant, wherein the bending section has at least one tool receiving groove that is recessed in the thickness direction into the front side or the back side and extends longitudinally along a transverse axis of the implant, and wherein the at least one tool receiving groove is designed to receive an working section of the bending tool.

This utility model relates to medicine and can be used in neurosurgery. It is used as a means of accessing the intervertebral disc between the 5th lumbar and 1st sacral vertebrae at a 90-degree angle for laser vaporization. The utility model achieves the following technical results: 1. A minimally invasive, minimally invasive approach to the intervertebral disc at the L5-S1 level. 2. Allows to improve the effectiveness of treatment and achieve maximum pain relief in polysegmental lesions of intervertebral discs 3. Prior to this utility model, attempts were made to perform laser vaporization of the disc at the L5-S1 vertebral body level from anatomically inconvenient locations, which was accompanied by a long time interval, prolonged pain for the patient, the end of the electrode was not in the center of the nucleus pulposus, sometimes even on the cortical layer of the vertebral bodies, as a result of which the maximum effect of vaporization was not obtained, or aseptic inflammation of the bone tissue of the vertebrae was obtained. This utility model eliminates the above-mentioned issues, reducing vaporization time. The essence of this utility model is that, using this trocar and drilling stylet, we provide direct access to the L5-S1 intervertebral disc. Laser vaporization of this disc has not previously been performed due to its anatomical limitations.

A holding element positions back parts or parts thereof of poultry carcasses having a neck side, a hip side, a body exterior side, and a body interior side, wherein the back part has a spinal column or parts thereof and a rib structure having at least vertebral rib pairs or parts thereof. The back part has a region, on the exterior side of the body relative to the rib structure, that has back-flesh. The holding element includes a holding device with at least one controllable clamping element. The at least one clamping element is configured and adapted to releasably fix the back part at least in some regions on the holding device by non-positive and / or positive locking engagement with the body interior side.

The application relates to the technical field of medical devices, and provides a minimally invasive nerve interface system, which comprises a plurality of micro bone implants implanted in target bone tissues, a wearable component and a nerve regulation system; the wearable component comprises a plurality of wearable units; the micro bone implants are implanted in micro channels constructed in the target bone tissues; the target bone tissues at least include skull and vertebrae; the wearable units are connected with the nerve regulation system and controlled by the nerve regulation system, the wearable units are wirelessly connected with the micro bone implants; the nerve regulation system is used for forwarding control instructions to the micro bone implants via the wearable units, controlling the micro bone implants to emit regulation signals, and / or receiving physiological signals collected by the micro bone implants and forwarded via the wearable units. The minimally invasive nerve interface system provided by the application can effectively reduce the influence of the bone tissues on signal collection and transmission, and avoid the invasiveness and risks of invasive operation.

A method and system for performing bone fusion and / or securing one or more bones, such as adjacent vertebra, are disclosed. The screws include a threaded tip connected to a main shaft and a threaded outer sleeve that rotates relative to the outer shaft until locked down. Independent rotation of the threaded outer sleeve relative to the threaded distal tip allows compression or distraction to modify the gap between the vertebral bodies. The screws are passed from the inferior to superior vertebra or superior to inferior, for example, through a trans-pedicular route to avoid neurological compromise. At the same time, the path of screw insertion is oriented to reach superior or inferior vertebra. An intervertebral cage of the system is configured for lateral expansion from a nearly straight configuration to form a large footprint in the disc space. The screws and cage may be combined for improved fixation with minimal invasiveness.

A cervical plate for easy reoperation includes: a main plate of a rectangular panel shape, which is installed using a screw on the vertebra from which the disk has been removed during spinal operation to support and fix the surgical site vertebra; and a subsidiary plate of a panel shape, which is installed using a screw during reoperation on an adjacent area to the surgical site where the main plate is installed to support and fix the reoperation site vertebra, wherein the main plate and the subsidiary plate can be connected continuously, thereby allowing additional installation of the subsidiary plate while maintaining the installed state of the main plate.

The application provides an artificial lamina for spinal decompression surgery, which comprises an arc-shaped lamina, both sides of the arc-shaped lamina are provided with C-shaped rotating grooves arranged along the length direction, the cross section of each C-shaped rotating groove is greater than one-half of a circle, both sides of the arc-shaped lamina are rotationally connected with arc-shaped wing plates matched with the arc shape, one side of each arc-shaped wing plate is provided with a rotating connecting shaft matched with the corresponding C-shaped rotating groove, and the free side of each arc-shaped wing plate is provided with a connecting plug strip arranged in the arc direction of the arc-shaped lamina, and each connecting plug strip is a porous mesh structure. The application uses the embedding method of the porous mesh structure to fuse and fix with the vertebrae, so that the bone-implant combination is mechanically stable and irreversible.

The invention provides a bone evaluation method based on neural network enhancement and finite element analysis. The bone evaluation method comprises the following steps: acquiring an ultrahigh-resolution CT image of a living vertebra; performing domain conversion processing on the CT image by adopting a generative neural network; carrying out resampling and segmentation on the enhanced CT image; constructing a bone trabecula microstructure model in the cancellous bone mask area; assembling the RVE unit and the cortical bone model into a complete vertebral finite element model, and applying a multi-working-condition load to the RVE unit to calculate anisotropic material parameters; and carrying out axial compression finite element analysis on the complete centrum model, and judging the bone health state. According to the method, information of two dimensions of bone mass and bone, especially contribution of a bone trabecula microstructure to bone strength, is comprehensively considered, bone degeneration and fracture high-risk patients can be recognized earlier, and a scientific basis is provided for clinical early intervention.

The present application relates to a kind of implantable fixation device and method for mouse spinal cord administration, the device includes: catheter assembly, which includes sleeve, injection inner tube and locking nut, the catheter assembly is used to carry out fixed-point infusion in spinal cord parenchyma by the bone hole opened on vertebral vertebra;Vertebra fixation assembly, which includes two V-shaped supports for clamping and fixing on the two sides of the outer periphery of vertebra;And bonding reinforcement system, which includes the initial solid seal layer formed by adhesive to realize the sealing between bone hole and catheter assembly and the structural holding adhesive resin layer formed by resin to realize the fixation between vertebra fixation subassembly and vertebra.The present application designs special vertebra fixation assembly: V-shaped support, and is combined with "biological glue preliminary adhesion" and "dental cement overall wrapping", and constructs a multi-level, rigid-flexible combined "sandwich fixation" composite fixation system.

The invention relates to a prosthesis used for being implanted between vertebrae, and particularly discloses an interbody fusion cage with a built-in anchoring element, which comprises a fusion cage body provided with two end surfaces, an anterior wall, a posterior wall, two side walls and a bone grafting window; two first linear channels extending from the front wall and penetrating to the rear side area of the end face and two second linear channels extending from the rear wall and penetrating to the front side area of the end face are formed in the fusion cage body on each side of the bone grafting window; the anchor rod is pre-arranged in the linear channel; the actuating mechanism comprises an operating head exposed to the front wall of the fusion cage body and an actuating main body positioned in the fusion cage body and used for driving the anchor rod; the operation head is screwed so that the actuating body can drive the anchor rods in the first linear channel and the second linear channel to obliquely stretch out forwards from the rear side area and the front side area of the end face correspondingly and respectively under the guidance of the linear channels, and the anchor rods are inserted into the vertebrae through the end plate.

Surgical instruments that facilitate articulation of a scraping tool within a surgical space (e.g., a vertebrae), and are configured to remain locked in position when scraping and removing tissue. The surgical instruments include a handle and a retention shaft that insertably engages the handle. The retention shaft includes a split distal end having flexible first and second portions that include means for securing a removeable tip therebetween, the tip being configured to scrape / remove tissue and insertably engage the split distal end between the first and second portions. A pivot lock mechanism engages the handle and receives the retention shaft therein with means for moving same axially. The surgical instrument is moveable between an unlocked state in which the tip is moveable relative to the split distal end when secured therein, and a locked state in which the tip is not moveable relative to the split distal end when secured therein.

Described herein are various implementations of systems and methods for treating back pain (e.g., chronic low back pain) caused by different (e.g., independent) sources of pain, such as pain originating or stemming from intervertebral discs, from vertebral endplates, and / or from intraosseous locations within one or more vertebral bodies. For examples, methods for treating back pain (e.g., chronic low back pain) may involve both vertebral fusion (e.g., arthrodesis or spondylodesis to fuse adjacent vertebrae) and neuromodulation (for example, ablation of nerves within or surrounding one or more of the adjacent vertebrae). The neuromodulation may facilitate treatment of pain that is generated by insertion of fusion hardware.

The invention relates to a vertebral stabilization device comprising at least two screws, each with a first portion inserted into a vertebra and a second portion separated from the first by a flange. The device further comprises at least a first connecting rod for joining the screws, and at least a first and a second fixing assembly for securing the rod to the screws. Each fixing assembly comprises at least one clip, which can be attached to the second portion of one of the screws. This clip is arranged to grip one end of the rod and includes a nut designed to thread onto the second portion and secure the clip directly or indirectly against the screw flange. Each fixing assembly is designed to create at least one ball-and-socket connection between the clip and the second portion of the screw.

An improved surgical system and procedure for correcting a deformity between first and second bones using an alignment guide based on a correction factor. The correction factor can be based on a virtual model of the first and second bones in a deformed configuration and a corrected configuration. In the virtual corrected configuration, first and second virtual axes can be fixed in the respective first and second bones. When reverted to the virtual deformed configuration, the orientation of the first and second axes can be used to determine the correction factor. The alignment guide is used to insert one or more k-wires into each of the first and second bones in a deformed configuration. A correction guide is passed along the k-wires to rotate and / or translate the first bone relative to the second bone into the corrected configuration.