83 results about "A vertebralis" patented technology

A single vertebra segmentation method, device, equipment and storage medium. The method comprises: acquiring first spine boundary information, which is boundary information of a spine in a segmentation result obtained through image segmentation of a raw CT image; acquiring first vertebra position information, which is information on the position of a single vertebra in the spine in the raw CT image; acquiring an initial image of the single vertebra according to the first spine boundary information and the first vertebra position information; marking the position of the single vertebra in the initial image of the single vertebra to generate an updated image of the single vertebra; and determining the single vertebra in a restored image corresponding to the raw CT image according to the updated image of the single vertebra. According to the present application, the spine in the CT image can be segmented on a single segment basis.

The invention provides a cervical vertebra segmentation and key point detection method based on a diffusion model, and relates to the technical field of medical image processing, and the method carries out the denoising processing of a cervical vertebra image through the diffusion model, improves the image quality, and lays a foundation for the subsequent segmentation and key point detection. A cervical vertebra region and key point positions can be accurately extracted by combining a model of a deep learning technology, and reliable data support is provided for bone age staging; the bone age staging based on the results can objectively and quantitatively evaluate the growth and development degree of a patient and assist a doctor in making a personalized orthodontic treatment scheme, and in addition, in combination with a stress distribution diagram generated by a biomechanical model and a self-adaptive segmentation model of a preprocessed image, a segmentation strategy can be adjusted according to individual differences, so that the accuracy of bone age staging is improved. The precision and the robustness are improved; meanwhile, parameters such as blood flow velocity and temperature distribution are incorporated into a machine learning model, new indexes are provided for cervical vertebra bone age staging, and the individuation and accuracy of evaluation are enhanced.

The invention discloses a spine three-dimensional evaluation method and system based on RGB images and anatomical constraints, and belongs to the field of medical image analysis. The method comprises the following steps: carrying out preprocessing and anatomical symmetry correction on an upright position back RGB image shot by the intelligent mobile equipment for a single time; extracting regions of interest of shoulder blade and iliac crest mark points by using a lightweight segmentation network; generating an initial depth map through a depth estimation model fusing a vertebra attention mechanism and a multi-constraint loss function; carrying out physiological scale calibration on the initial depth map based on height and weight parameters; a cascade GAN is adopted to eliminate clothes interference and reconstruct a back three-dimensional surface; based on biomechanical characteristics, NURBS parameters are adjusted in a self-adaptive mode to fit a spine three-dimensional curve; and outputting a coronal plane Cobb angle, a trunk rotation angle and a sagittal plane curvature parameter. Through monocular depth estimation and dynamic evaluation of anatomical constraint, the problems of radiation risk, subjective error and clothes interference of a traditional method are solved.

Embodiments include example systems, methods, and computer-accessible mediums for analysis of anatomical images for assessment of stenosis and disc degeneration. In some embodiments, systems, devices, and methods described herein include selecting a region of interest (ROI) in a three-dimensional (3D) volume of image data of a plurality of vertebra of a spine, identifying one or more anatomical parts in the ROI, determining one or more parameters of the one or more anatomical parts, and assessing a severity of a spinal deformity based on the one or more parameters.

A system and method for planning and simulating a surgical operation to create a patient-specific spinal implant are disclosed. The system comprises a remote server configured to receive patient-specific medical image data and generate a 3D mesh model of the patient's spine using algorithms that separate vertebral bodies, remove artifacts, and smooth surfaces. A doctor's computer receives the 3D mesh model and allows real-time manipulation of intervertebral spaces to achieve a desired spinal curvature. The server generates a spinal implant design with surface-mapped endplates matching the patient's vertebral anatomy, which is transmitted to a 3D printer for manufacturing. The method includes steps of receiving image data, generating and updating the 3D mesh model based on doctor input, generating the final implant design, and transmitting it for production. The invention enables the creation of patient-specific spinal implants with improved conformity and surgical outcomes.

An eddy current sensor (100) and a method (200) for eddy current measurement are disclosed, wherein the eddy current sensor (100) comprises: a first coil (102) for generating a first alternating electromagnetic field; and a second coil (104) for generating a second alternating electromagnetic field, wherein the second coil (104) is arranged concentrically to the first coil (102).

A method for performing spinal surgery may include forming an access corridor through an aspect of a facet joint of a patient between an inferior articular process of a vertebra and a superior articular process of a vertebra, wherein at least an aspect of the inferior articular process is preserved on a medial side of the access corridor and at least an aspect of the superior articular process is preserved on a lateral side of the access corridor.

The invention discloses an angle-adjustable or deployable multi-stage anchoring insertion sheet system, and relates to the technical field of medical instruments, the angle-adjustable or deployable multi-stage anchoring insertion sheet system comprises a hollow box body, and the upper surface and the lower surface of the box body are each provided with at least one insertion sheet outlet; the at least one group of inserting piece driving mechanism is arranged in the box body and is used for generating linear driving force; the at least two insertion sheet assemblies are accommodated in the box body in an initial state, and each insertion sheet assembly is in driving connection with the insertion sheet driving mechanism; according to the intervertebral fusion cage, the secondary anchoring part capable of moving relative to the basic anchoring part is arranged, so that the anchoring angle or the opening degree of the fusion cage can be adjusted according to a vertebral form operation of a patient after the fusion cage is implanted, the adaptability to different anatomic forms is improved, and a more flexible anchoring scheme is provided for an intervertebral fusion operation.

The invention relates to the technical field of medical instruments, and provides an interbody fusion cage and a vertebra fixing system.The interbody fusion cage comprises a first supporting body, a second supporting body, a connecting piece, an adjusting screw rod, a sliding block and a locking piece, the connecting piece is arranged on the first supporting body, and the connecting piece is hinged to the second supporting body; the adjusting screw rod is rotationally connected with the connecting piece; the sliding block is connected with the adjusting screw rod in a threaded fit mode, and the sliding block is connected with the first supporting body in a sliding mode and abuts against the second supporting body. And the locking piece is arranged at the end part of the adjusting screw rod and is used for embedding a gap between the connecting piece and the adjusting screw rod, so that the connecting piece and the adjusting screw rod are relatively fixed in the circumferential direction. The connecting piece and the adjusting screw rod are relatively fixed in the circumferential direction in an embedding mode, so that positioning of the adjusting screw rod can be achieved, and the loosening situation is avoided; when the adjusting screw rod is driven to rotate through the surgical instrument, due to the fact that a locking piece is not installed, stress detection of the surgical instrument cannot be interfered, and the surgical precision can be guaranteed.

The invention relates to a spinal fracture segmentation and training method and system based on neural network semi-supervised learning and related equipment. The method comprises the following steps: acquiring a spine CT image of a target patient, and performing vertebra segmentation on the spine CT image based on a 3D U-Net model to obtain a vertebra CT image; classifying the vertebra CT image by using a 2.5 D vertebra fracture classification model to obtain a vertebra fracture image and a fracture-free vertebra image; constructing an artificial vertebra fracture area segmentation mask based on the fracture CT image of the specific part and the fracture-free vertebra image, and generating a vertebra fracture area segmentation mask according to the vertebra fracture image; and performing semi-supervised learning training on the 3D U-Net model by taking the artificial vertebral fracture region segmentation mask and the vertebral fracture region segmentation mask as training data to obtain a vertebral fracture segmentation model. According to the method, training of the spinal fracture segmentation model is realized under the condition of limited real patient spinal fracture image data, the accuracy and efficiency of fracture classification are improved, and the spinal fracture segmentation precision is improved.

Disclosed herein are an inserter instrument, a system including the inserter, a spinal implant, and fasteners for affixing the implant to the spine of a subject, and related methods for performing spinal procedures including insertion of spinal plates. The inserter includes a housing, an inner sleeve slidably disposed within the housing, and an awl slidably disposed within the housing and inner sleeve. The housing includes a rotatable portion configured to actuate translation of the inner sleeve proximally or distally relative to the housing along a central axis to releasably engage the spinal implant using a distal engagement portion of the inner sleeve. The awl is configured to form a pilot hole in a vertebra at the surgical site, which is configured to receive a fastener to fix the spinal plate to the spine.

To provide a method for estimating a liver volume, capable of easily and inexpensively acquiring the liver volume.SOLUTION: A method for estimating a liver volume using a plurality of cross-sectional images obtained by computed tomography or nuclear magnetic resonance imaging, the method includes the steps of: selecting, from the plurality of cross-sectional images showing the liver, a first image with a longest first length, the length in the anteroposterior direction between the ventral surface of the liver and a prescribed point on the vertebra, a second image, the cross-sectional image closest to head side, and a third image, the cross-sectional image closest to the foot side; and calculating the liver volume using the first length in the first image, a second length, the maximum length in a left-right direction between left and right abdominal walls in the first image, and a third length, the length in a vertical direction between a cross-section corresponding to the second image and a cross-section corresponding to the third image.SELECTED DRAWING: Figure 1

Disclosed herein are an inserter instrument, a system including the inserter, a spinal implant, and fasteners for affixing the implant to the spine of a subject, and related methods for performing spinal procedures including insertion of spinal plates. The inserter includes a housing, an inner sleeve slidably disposed within the housing, and an awl slidably disposed within the housing and inner sleeve. The housing includes a rotatable portion configured to actuate translation of the inner sleeve proximally or distally relative to the housing along a central axis to releasably engage the spinal implant using a distal engagement portion of the inner sleeve. The awl is configured to form a pilot hole in a vertebra at the surgical site, which is configured to receive a fastener to fix the spinal plate to the spine.

This invention provides a method, device, medium, and program product for spinal segmentation, relating to the field of intelligent healthcare. The method includes: acquiring a three-dimensional CT image of the spine; segmenting the three-dimensional CT image to obtain an N-value mask image of the entire vertebral column; cropping individual vertebrae from the N-value mask image of the entire vertebral column to obtain N-value mask images where adjacent individual vertebrae are not connected; locating the centroid of each individual vertebra in the N-value mask images where adjacent individual vertebrae are not connected to obtain an image with the located centroid; and segmenting an image of a single vertebra corresponding to the single centroid from the image with the located centroid as the center. This application reduces the difficulty of segmenting the entire vertebral column and improves the segmentation accuracy by first coarsely locating the spinal region and then finely locating different vertebral regions for segmentation.

The invention relates to the technical field of medical care information, in particular to an orthopaedic spine post-operation imaging auxiliary evaluation system, which comprises a region acquisition module, a region correction module, a callus growth coefficient acquisition module and a network training module, the method comprises the following steps: acquiring an initial vertebra fusion region in a spinal image of a historical patient after a spinal fusion operation, and correcting the initial vertebra fusion region to obtain a real vertebra fusion region; determining a plurality of first intervertebral gradient regions and second intervertebral gradient regions in the real vertebra fusion region, and determining a callus growth coefficient of the real vertebra fusion region according to position distribution and pixel gray levels of the first intervertebral gradient regions and the second intervertebral gradient regions; and forming a training set by utilizing the callus growth coefficients of all historical patients and the postoperative risk grades calibrated in the initial vertebra fusion region, and training the postoperative risk classification network. According to the invention, the classification accuracy of the postoperative risk classification network is effectively improved.

The application discloses a scoliosis detection method, computer equipment and a storage medium, wherein the method comprises the following steps: training a preset recognition network model by using a data training set to obtain a pre-training recognition network model, wherein the training adopts a loss function provided with a regularization penalty term based on an anatomical prior constraint; recognizing a spine image by using the pre-training recognition network model to obtain corner points of each vertebra in the spine; and calculating a Cobb angle of the spine according to the corner points. The technical scheme provided by the application can improve the accuracy of the obtained Cobb angle.

Sacral fixation system and assembly comprising such a system. Sacral fixation system, comprising a plate (10) including: a proximal face (16) and a distal face (17), a plate plane extending between the distal and proximal faces, a first socket (21) extending along a first axis (X21), a second socket (22) extending along a second axis (X22), a plate axis, the second axis forming a first angle with the plate plane, and the second axis and the plate axis forming a second angle between 45 degrees and 110 degrees; a second screw (12), received in the second socket to penetrate at least the S2 vertebra of the patient's sacrum; a locking plug (13), which includes a skirt (36) and which is received in the second socket by interposing the skirt between the second screw and the second socket. Figure for the abbreviation: Figure 6

The invention belongs to the technical field of bionic robots, and provides a collaborative damping system applied to vertebrae of a simulated humanoid robot and an implementation method of the collaborative damping system. The multi-part cooperative damping mechanism comprises a cervical vertebra damping assembly, a lumbar vertebra damping assembly and a caudal vertebra damping assembly, the cervical vertebra damping assembly, the lumbar vertebra damping assembly and the caudal vertebra damping assembly have different damping functions, and multi-stage damping of the spine of the humanoid robot is achieved through the synergistic effect. The damping assemblies with different materials, structures and functions are designed for the three key sections of the cervical vertebra, the lumbar vertebra and the caudal vertebra, and the damping assemblies work cooperatively, so that multi-stage and efficient absorption from high-frequency fine vibration to large-amplitude vertical impact is achieved; meanwhile, through the signal linkage module and the damping parameter adjusting module, the system can automatically adjust the damping coefficient and mode of each damping assembly according to the vibration type sensed in real time and the motion state of the robot.

The present application relates to a kind of device for making spinal cord contusion model and damage test method, belong to spinal cord injury test field, solve the technical problems of the prior art instrument structure complex, bulky, high cost, and the consistency and repeatability of instrument making spinal cord contusion model is not high, simultaneously, the device for making spinal cord contusion model of the present application can move, also solve the problem that due to instrument fixation, need to transport rat in spinal cord injury experiment.The device for making spinal cord contusion model of the present application includes fixture installation platform, striker installation platform, actuating transmission assembly, striker and vertebral clamp;Form the device for making spinal cord contusion model of movable bottom plateless.

Systems and methods for mapping a zone for monitoring the position of a surgical instrument from a model vertebra to a 3D image of a patient's vertebra during a procedure. A model vertebra is received in a first coordinate system, the model vertebra including a plurality of model features positioned in the first coordinate system and a pose of a model region in the first coordinate system. 3D images of the first and second vertebrae of the patient in a second coordinate system are also received. A model vertebra including the model region is mapped to the first vertebra such that a region for the first vertebra is generated. An input indicative of a revised pose for the region of the first vertebra is received, and a region for the second vertebra is generated based on the revised pose for the region of the first vertebra.

A system and method for planning and simulating a surgical operation to create a patient-specific spinal implant are disclosed. The system comprises a remote server configured to receive patient-specific medical image data and generate a 3D mesh model of the patient's spine using algorithms that separate vertebral bodies, remove artifacts, and smooth surfaces. A doctor's computer receives the 3D mesh model and allows real-time manipulation of intervertebral spaces to achieve a desired spinal curvature. The server generates a spinal implant design with surface-mapped endplates matching the patient's vertebral anatomy, which is transmitted to a 3D printer for manufacturing. The method includes steps of receiving image data, generating and updating the 3D mesh model based on doctor input, generating the final implant design, and transmitting it for production. The invention enables the creation of patient-specific spinal implants with improved conformity and surgical outcomes.

Disclosed is a computer-implemented method of registering a digital model of an anatomical body part corresponding to a patient body part. The method encompasses input, to an augmented reality viewing device, of data defining a digital model of an anatomical body part, for example of the spine. The model comprises at least one vertex which corresponds to a specific part of the anatomical body part. The specific part is for example a landmark which is easily identifiable for a user, such a specific vertebra which may be found by palpation. Based on a known orientation of the augmented reality viewing device relative to the anatomical body part, visual information is displayed on a viewing unit of the augmented reality viewing device. The visual information indicates the position of the vertex as an overlay on the position of the specific part of the anatomical body part in the field of view of the augmented reality viewing device.

The application discloses a rapid registration method and device for robot-assisted spine surgery, and steps of the rapid registration method include: performing a Boolean operation on a spinous process part of a three-dimensional model of a vertebra of a surgical subject and a three-dimensional model of a registration device, and deriving a registration matrix; deriving the three-dimensional model of the registration device after the Boolean operation, and performing rapid prototyping processing; and in a surgical process, fixing the registration device in place on the spinous process part of the surgical subject, and completing registration. The application has the advantages of simple interactive operation, short learning period, portable and easy-to-disinfect registration device, fast registration speed, avoidance of X-ray radiation exposure, and improvement of a surgical environment.

Embodiments include example systems, methods, and computer-accessible mediums for analysis and visualization of data associated with anatomical images. In some embodiments the anatomical images can be spinal images used for assessment of stenosis and disc degeneration. In some embodiments, systems, devices, and methods described herein include selecting a region of interest (ROI) in a three-dimensional (3D) volume of image data of a plurality of vertebra of a spine, identifying one or more anatomical parts in the ROI, determining one or more parameters of the one or more anatomical parts, and assessing a severity of a spinal deformity based on the one or more parameters.

A visualization scheme is generated based on automated segmentation to display anatomies of a patient. Data representative of a three-dimensional diagnostic image is received. The ribs and spine are segmented, rib centerlines and vertebra center landmarks are detected and labeled. Three-dimensional position coordinates corresponding to the received data are mapped to a defined two-dimensional manifold plane followed by an interpolation technique to complete the remaining three-dimensional position coordinates and deform the two-dimensional manifold plane. Image intensities are sampled from three-dimensional diagnostic image space, at each coordinate of the deformed two-dimensional manifold plane. A reformatted image is generated as a manifold slice from the sampled image intensities displaying a continuous and straightened visualization of a rib cage. A three-dimensional visualization of the rib cage is generated from a plurality of manifold slices.

The disclosed subject matter provides techniques for treating a subject. An example method includes placing a lead in a vertebral vein of the subject, placing at least one electrode within the vertebral vein adjacent to an autonomic nerve, and modulating a cardiovascular system of the subject by supplying a predetermined amount of an electrical stimulation energy to the autonomic nerve. In non-limiting embodiments, the lead can be placed in the vertebral vein via a subclavian vein, an axillary vein, or a combination thereof. In some embodiments, the at least one electrode can be coupled to the lead.

Disclosed herein are an inserter instrument, a system including the inserter, a spinal implant, and fasteners for affixing the implant to the spine of a subject, and related methods for performing spinal procedures including insertion of spinal plates. The inserter includes a housing, an inner sleeve slidably disposed within the housing, and an awl slidably disposed within the housing and inner sleeve. The housing includes a rotatable portion configured to actuate translation of the inner sleeve proximally or distally relative to the housing along a central axis to releasably engage the spinal implant using a distal engagement portion of the inner sleeve. The awl is configured to form a pilot hole in a vertebra at the surgical site, which is configured to receive a fastener to fix the spinal plate to the spine.

The present invention provides a pedicle screw placement guide plate and a preparation method thereof. The prepared screw placement guide plate can safely and accurately place pedicle screws, reduce surgical risks and trauma, and improve the quality of life of patients. The pedicle screw placement guide plate comprises a transverse column, a lateral column, and a needle channel column. Needle channels are arranged at both ends of the transverse column, each needle channel is vertically extended downward and provided with a lateral column, each needle channel is obliquely extended downward and provided with a needle channel column, the lateral column and the needle channel column share an input end, and the inner cavity of the needle channel column is connected to the needle channel. The pedicle screw placement guide plate comprises the following steps: obtaining a CT image of a target vertebra of a patient, importing the image into 3D modeling software to establish a 3D model of the target vertebra; establishing a pedicle screw placement guide plate model, planning the optimal screw insertion point and direction of a pre-placed screw on the 3D model of the target vertebra using a cylinder with a diameter of 4 mm in the 3D modeling software, then establishing a needle channel column to surround the cylinder, and sequentially establishing a transverse column, a lateral column, and a diagonal support column to obtain an initial model.