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192 results about "Coronal plane" patented technology

A coronal plane (also known as the frontal plane) is any vertical plane that divides the body into ventral and dorsal (belly and back) sections.

Auxiliary dental implant generation method based on diffusion model

The present invention relates to the technical field of stomatology. Provided is an auxiliary dental implant generation method based on a diffusion model. The method in the present invention comprises: acquiring oral CBCT image data of historical patients, preprocessing the oral CBCT image data of the historical patients to obtain a CBCT image dataset, using the CBCT image dataset to train a multi-task segmentation network, and using the segmentation network to obtain an intraoral tissue segmentation result; using the intraoral tissue segmentation result to train detection networks from the three dimensions of a cross-sectional plane, a coronal plane and a sagittal plane, respectively; using the detection networks to obtain detection results in the three directions of the cross-sectional plane, the coronal plane and the sagittal plane; fusing the detection results in the three directions of the cross-sectional plane, the coronal plane and the sagittal plane, and using a majority voting algorithm to construct a three-dimensional bounding box, so as to acquire an edentulous area; and using the intraoral segmentation result and the edentulous area as prompt information to guide, by means of an iterative process, a network to generate a post-implantation effect. The implantation effect obtained by the present invention is highly accurate, thereby providing a more precise auxiliary tool for stomatology.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Health assessment method and system based on 3D human body posture image model

The invention relates to the technical field of human body health assessment, in particular to a health assessment method and system based on a 3D human body posture image model. The method comprises the following steps: acquiring human body annular scanning data; extracting a dynamic posture sequence of a vertical position, a forward bending position and a lateral bending position of the human body annular scanning data, and performing phase shift fringe projection on the human body annular scanning data according to the dynamic posture sequence to obtain human body three-dimensional point cloud data; a sagittal plane, a coronal plane and a cross section of the human body three-dimensional point cloud data are analyzed for orthogonal projection, and a human body multi-angle projection image group is generated; and identifying skeleton contour features of the human body multi-angle projection image group so as to establish a dynamic marking system of the anatomical mark points. Through high-precision dynamic acquisition and multi-dimensional space analysis, precision, standardization and individuation of 3D human body posture health assessment are realized, and the accuracy and comprehensiveness of human body posture health assessment are improved.
Owner:SHENZHEN XIANKU INTELLIGENT CO LTD

Spine three-dimensional evaluation method and system based on RGB image and anatomical constraint

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.
Owner:HEFEI INSTITUTE OF PHYSICAL SCIENCE CHINESE ACADEMY OF SCIENCES

Mandibular neural tube automatic segmentation method based on multi-view guidance

The invention discloses a mandibular neural tube automatic segmentation method based on multi-view guidance, and relates to the technical field of oral medical treatment. Comprising the following steps: collecting original oral cavity CBCT image data, and performing preprocessing; sending the preprocessed image data into a mandible segmentation network, and segmenting a mandible region containing a mandible neural tube; a contrast enhancement technology is adopted for the segmented mandible area; projecting the processed mandible image along three orthogonal tangent planes of a coronal plane, a sagittal plane and a cross section; performing key point detection on the mandibular neural tubes on the three projection planes by using the trained key point detection network to obtain shape information of the mandibular neural tubes; and the features are combined with texture direction features to be input into a three-dimensional CBCT mandibular neural tube segmentation network, and accurate 3D segmentation is carried out. Two-dimensional missing space information is avoided, and mandibular neural tube segmentation is more complete and accurate.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Positioning puncture surgery robot system with reconfigurable working space

The invention discloses a positioning puncture surgery robot system with a reconfigurable working space, and the system comprises a multi-mode image collection module which is used for obtaining a high-resolution image of a target region of a patient; the three-dimensional anatomical model reconstruction module is used for generating a three-dimensional anatomical model containing a skeleton structure and a soft tissue structure; the target point selection and puncture path generation module is used for automatically recommending puncture target points according to operation types and clinical requirements and automatically generating a plurality of preliminary puncture paths; the multi-plane segmentation and path injection module is used for segmenting the three-dimensional anatomical model from a coronal plane, a sagittal plane and an axial plane and generating slices, and injecting puncture paths into the corresponding slices; by integrating multi-modal image acquisition, three-dimensional anatomical model reconstruction and automatic path planning and optimization setting, the operation efficiency and accuracy are remarkably improved, the operation risk is reduced through real-time data analysis, and a more personalized treatment scheme is provided for a patient.
Owner:SUZHOU AKETES MEDICAL TECH CO LTD

Electro-hydraulic hybrid driving and driven humanoid robot lower limb

The invention relates to the technical field of robots, and discloses an electro-hydraulic hybrid driving and driven humanoid robot lower limb and waist assembly which serves as a connection foundation of lower limbs and a robot trunk. The near ends of the thigh assemblies are connected with the waist assembly through hip joints; the near end of the shank assembly is connected with the far end of the thigh assembly through a knee joint; the foot component is connected with the far end of the shank component through an ankle joint; the hip joint is provided with three rotational degrees of freedom, the knee joint is provided with one rotational degree of freedom, and the ankle joint is provided with two rotational degrees of freedom; the rotational degree of freedom of each joint in a sagittal plane is driven by an active hydraulic actuator and a passive hydraulic actuator; the rotational degree of freedom of each joint in a horizontal plane and a coronal plane is driven by a motor joint module; the advantages of electric drive and hydraulic drive are brought into full play, and the problems of high power consumption in the negative work stage, complex traditional hydraulic drive pipelines and the like are solved by adopting an active and passive combined distributed hydraulic drive technology.
Owner:ZHEJIANG UNIV +1

Knee joint dyskinesia function evaluation method and system

The invention provides a knee joint dyskinesia function evaluation method and system. The method comprises the following steps: by collecting lower limb kinematics parameters, plantar pressure distribution data and gait rhythm parameter groups of a subject in a standard gait test, generating a knee joint motion trail map comprising sagittal plane, coronal plane and rotation trail components, dividing a dynamic phase window based on the gait rhythm parameters, calculating a fluctuation feature vector of a sagittal plane track component, performing nonlinear decomposition on a coronal plane and a rotation track component to separate an adduction and abduction motion principal component and a rotation coupling component, constructing a joint stability quantitative index, and performing dynamic space registration on a bilateral knee joint track map to obtain a joint stability quantitative index; and calculating a three-dimensional trajectory similarity weight matrix, and calculating a dynamic symmetry index in combination with the cross-side difference coefficient of the joint stability quantitative index. According to the technical scheme provided by the invention, a scientific basis is provided for personalized rehabilitation treatment.
Owner:TIANJIN LIYUAN MEDICAL TECH CO LTD

High-compatibility self-calibration lower limb exoskeleton rehabilitation robot

ActiveCN120514577AChiropractic devicesHip rotationExoskeleton robot
The invention discloses a high-compatibility self-calibration lower limb exoskeleton rehabilitation robot which comprises a first lower limb rehabilitation device, a second lower limb rehabilitation device and a hip joint adjusting device. The hip joint exoskeleton assembly comprises three active driving units, and the active driving units with the rotating surfaces corresponding to the horizontal plane are aligned with the rotating center of the hip joint through the remote motion center mechanism with the virtual axis. According to the high-compatibility self-calibration lower limb exoskeleton rehabilitation robot, rotation of a horizontal plane, a coronal plane and a sagittal plane can be completed at the position corresponding to the hip joint of a user, three degrees of freedom of forward flexion / backward extension, adduction / abduction and inward rotation / outward rotation of the hip joint of the human body are achieved respectively, and the exoskeleton robot is aligned to the rotation center of the hip joint of the human body; therefore, the rehabilitation effect of the high-compatibility self-calibration lower limb exoskeleton rehabilitation robot can be improved.
Owner:NANKAI UNIV

Walking power assisting device with differential transmission mechanism

The invention discloses a walking power assisting device with a differential transmission mechanism, which comprises a power module, a waist module and a leg rod module, the power module is horizontally arranged near the lower abdomen in front of a human body, and the rotation axis of the power module is horizontally arranged and is parallel to the coronal plane of the human body; the device comprises a motor module, a speed reducing mechanism, a differential transmission mechanism, a first power output end and a second power output end, the motor module is in transmission connection with the input end of the reducing mechanism, one end of the differential transmission mechanism is in transmission connection with the output end of the reducing mechanism and the first power output end, and the other end is in transmission connection with the second power output end; based on the differential transmission mechanism, rotation of the output end of the speed reducing mechanism can drive the first power output end to rotate in the opposite direction relative to the second power output end. The walking power assisting device has the advantages of being light in weight, small in storage size, small in implementation space, low in complexity, close-fitting, compact and the like.
Owner:SHENZHEN CONCHIN TECH CO LTD

PET / CT (positron emission tomography / computed tomography) image breathing motion artifact correction method based on triple subgroup convolutional network

The invention relates to a PET / CT (positron emission tomography / computed tomography) image breathing motion artifact correction method based on a triple subgroup convolutional network, and belongs to the field of nuclear medicine imaging. The invention provides a lightweight triple-subgroup convolution kernel, and the convolution kernel focuses on analyzing the rotation and translation characteristics of coronal planes, sagittal planes and cross sections closely related to PET / CT images so as to realize efficient detail analysis under the condition of clinical small samples. And then, a Transform-subgroup convolution fusion encoder and a pyramid network are constructed in combination, a constructed triple subgroup convolution registration network can combine sub-deformation fields of multiple dimensions to obtain a smooth deformation field, and the deformation field is used for spatial distortion transformation to achieve the purpose of artifact correction. According to the method, artifact correction experiment comparison is carried out by using pixel body membrane simulation data and clinical data, the superiority of the method in the aspects of robustness and generalization ability is proved, and the quality of PET / CT images is effectively improved.
Owner:KUNMING UNIV OF SCI & TECH

Hip joint exoskeleton and walking assistance control method

PendingCN121468478AProgramme-controlled manipulatorHip rotationCoronal plane
The invention belongs to the technical field of robots, and provides a hip joint exoskeleton and a walking assistance control method.The hip joint exoskeleton comprises three active driving units, and a hip joint exoskeleton sagittal plane driving unit is used for achieving forward flexion / backward extension of a human hip joint; the hip joint exoskeleton coronal plane driving unit is used for realizing human hip joint adduction / abduction; the hip joint exoskeleton horizontal plane driving unit is used for realizing inward rotation / outward rotation of the hip joint of the human body; the hip joint exoskeleton sagittal plane driving unit, the hip joint exoskeleton coronal plane driving unit and the hip joint exoskeleton horizontal plane driving unit are connected through the remote rotating center mechanism, so that a rotating plane corresponding to the horizontal plane driving unit is aligned with a hip joint rotating center through a virtual axis. The hip joint exoskeleton is compact in structure and saves space. According to the control method, when the user wears the exoskeleton to walk, the exoskeleton can accurately assist the walking of the user without time delay.
Owner:NANKAI UNIV +1

Dynamic arm brace assemblies and methods of use

Dynamic arm brace assemblies and methods of use are provided herein. An example device includes a torso connection member securable to a torso of a patient, a forearm support member that couples with at least a forearm of an patient, the forearm support member couples with the torso connection member so as to fix an elbow of the patient proximate the torso, the forearm support member being pivotally coupled to the torso connection member to allow for an angle between the forearm support member and a coronal plane of the patient, and a dynamic tensioning assembly that externally rotates the forearm support member and selectively sets the angle so as to stretch a shoulder capsule (capsule and adjacent tissue(s)) affected with adhesive capsulitis, reducing the adhesive capsulitis.
Owner:KAMINSKY SEAN +2

Method for constructing clinically relevant large animal model of traumatic optic neuropathy

A method for constructing a clinically-relevant large animal model of traumatic optic neuropathy, employing a goat with orbital anatomy and optic nerve structure similar to humans as a model animal, overing the defects existing in other animals as TON model animals. The target model goat is obtained by screening parameters, such as a maximum transverse diameter of a coronal plane of a body of sphenoid bone and a wall width of a sphenoid bone, thereby facilitating the exposure of an optic nerve in a optic-canal segment under a nasal endoscopic surgery and quantitative injury. With the optic nerve injury animal model, the clinical TON pathogenesis can be explored by studying the optic nerve at the injured optic canal. In the prepared TON animal model, the injured optic nerve is closer to the brain, which is beneficial to rebuilding the synaptic connection.
Owner:THE EYE HOSPITAL OF WENZHOU MEDICAL UNIVERSITY

Patient interface with movable frame

A patient interface may include a plenum chamber pressurisable to a therapeutic pressure; a seal-forming structure constructed and arranged to form a seal with a region of the patient's face; a positioning and stabilising structure to provide an elastic force to hold the seal-forming structure on the patient's head, the positioning and stabilising structure may include a tie; a vent structure; a decoupling structure configured to provide a fluid connection between the plenum chamber and an air circuit for the flow of air at the therapeutic pressure for breathing by the patient; and a frame having at least one tie attachment structure to receive the tie, wherein the frame is configured to be resiliently movable in any direction having at least one of a component parallel to the patient's sagittal plane, a component parallel to the patient's coronal plane, a component parallel to the patient's Frankfort horizontal plane.
Owner:RESMED PTY LTD

System for tracking real-time positions of a movable sensor within a patient's body

The present invention relates to a tracking system (10) comprising: an emitting device (12) configured to establish a measurement volume within at least a part of a patients body, the patients body having a median plane, a transverse plane, and a coronal plane; a movable sensor (14) which is movable within the measurement volume; a first reference sensor (16) establishing a global coordinate system within the measurement volume, the global coordinate system having an origin, an x-axis, a y-axis and a z-axis; and a controller (18). The controller (18) is configured to detect real-time positions of the movable sensor (14) within the global coordinate system, to set the origin of the global coordinate system as an anchor point in relation to the patients body, to span a first reference plane in direction of the x-axis and the z-axis being parallel to the median plane, to span a second reference plane in direction of the y-axis and the z-axis being parallel to the transverse plane, to span a third reference plane in direction of the x-axis and the y-axis being parallel to the coronal plane, and preferably to translate in parallel at least one of the first reference plane, the second reference plane and the third reference plane based on an expected movement path of the movable sensor.
Owner:ABIOMED EUROPE GMBH

3D Reconstruction Method, System, Electronic Device and Storage Medium for X-ray Images

The present invention discloses an X-ray image three-dimensional reconstruction method, system, electronic device and storage medium. The method includes using two parallel encoder-decoder networks to perform three-dimensional reconstruction on the coronal plane and sagittal plane of two-dimensional X-ray images respectively. Among them, in the encoder network, a local feature enhancement module is used to extract two-dimensional feature maps of the coronal plane X-ray image and the sagittal plane X-ray image respectively; an attention interaction module is used to perform information exchange and fusion on the two-dimensional feature maps of the coronal plane X-ray image and the sagittal plane X-ray image; a dimension conversion unit is used to convert the two-dimensional feature map processed by the attention interaction module into a three-dimensional feature map; in the decoder network, a 3D transposed convolution module is used to obtain a three-dimensional image by gradually magnifying the three-dimensional feature map and performing three-dimensional convolution operations. The method of the present invention can complete the reconstruction of three-dimensional CT using only two X-ray pictures, reducing the radiation received by patients.
Owner:HARBIN INSTITUTE OF TECHNOLOGY (SHENZHEN) (INSTITUTE OF SCIENCE AND TECHNOLOGY INNOVATION HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN)

Phantoms and methods for coronal plane transmission detection for three-dimensional ultrasound imaging devices

The application belongs to the field of medical instrument imaging diagnosis equipment quality detection, and particularly relates to a phantom and a method for coronal plane transmission detection of a three-dimensional ultrasonic imaging device. The phantom comprises: an upper panel, an acoustic window, a target group, and an aggregate formed by background ultrasonic tissue simulation material. The upper panel is located above the acoustic window, and the upper panel and the acoustic window form an inner cavity after being connected. The target group and the aggregate formed by the background ultrasonic tissue simulation material are located in the inner cavity. When the coronal plane transmission imaging performance is detected, the phantom is suspended in the imaging area of a hemispherical ultrasonic array, and a degassed water body is also contained in the imaging area. Each target in the target group extends along the vertical direction and is perpendicular to the coronal plane of the breast to be imaged. In this way, the convenience and accuracy of the coronal plane transmission imaging performance detection are improved, and the utility is good.
Owner:INST OF ACOUSTICS CHINESE ACAD OF SCI

Method for preparing a simulated heart model and simulated heart model

PendingCN122337085AVentricular myocardiumCoronal plane
This invention discloses a method for preparing a simulated heart model and the simulated heart model itself. The method for preparing the simulated heart model includes: dividing a digital heart model into two parts along its coronal plane; preparing corresponding molding molds according to the structural characteristics of the two parts, each molding mold including an outer molding mold and an inner cavity molding mold; applying silicone to the molding surfaces of the outer molding mold and the inner cavity molding mold to form the endocardium and epicardium; applying silicone to the portion of the inner cavity molding mold used for molding the valve to form the valve; assembling the outer molding mold and the inner cavity molding mold to form a cavity; sequentially injecting silicone of corresponding hardness into the regions of the cavity used for molding the atrial myocardium, interatrial septal myocardium, ventricular myocardium, and interventricular septal myocardium to form heart model halves; and bonding the heart model halves corresponding to the two molding molds together to obtain the simulated heart model.
Owner:FOURTH MILITARY MEDICAL UNIVERSITY

Side sleeping pillow

A specialized pillow is provided adapted for a woman's body and having a structure that allows rest with the body lying one's side. A linearly elongated ventral cushion support is provided bilaterally symmetric about a vertical centerline along the coronal plane. A right attachment harness connects with a left attachment harness to circumscribe a user's torso and allow for the ventral cushion support to be positioned against a user's chest along the sternum.
Owner:DANIELS CYNTHIA

Multi-view fusion pancreas segmentation method and system and storage medium

The invention discloses a multi-view fusion pancreas segmentation method and system and a storage medium, and the method comprises the steps: decomposing a three-dimensional CT image of a pancreas organ, and obtaining two-dimensional CT images under three views of an axial plane, a coronal plane and a sagittal plane; respectively inputting the two-dimensional CT images under the three views of the axial plane, the coronal plane and the sagittal plane into an axial plane pancreas segmentation model, a coronal plane pancreas segmentation model and a sagittal plane pancreas segmentation model for processing to obtain pancreas region segmentation results under the three views; wherein the axial plane pancreas segmentation model, the coronal plane pancreas segmentation model and the sagittal plane pancreas segmentation model are obtained by training an initial pancreas segmentation model; fusing the pancreas region segmentation results under the three views by using a majority voting strategy to obtain a three-dimensional pancreas segmentation image; according to the method, cross-slice global context clues can be effectively integrated, and the accuracy and robustness of pancreas segmentation are improved.
Owner:HOHAI UNIV

A method for scan depth assessment of a breast ABUS image

This invention discloses a method for evaluating the scanning depth of breast ABUS images, belonging to the field of breast ABUS image technology. The method includes: S1: collecting three-dimensional DICOM data of breast ultrasound, annotating the ribs in the coronal images, and evaluating the scanning depth; S2: performing coronal slice processing and converting and generating model labels; S3: detecting the rib region based on a target detection architecture, and training a rib detection model capable of automatically locating the rib region in the image; S4: testing and evaluating the rib detection model; S5: establishing scanning depth judgment rules based on the number and position of rib frames to determine the scanning depth category. This invention solves the problems of significant differences in image coverage, lack of reliable reference, and difficulty in quickly determining the optimal scanning depth suitable for different breast sizes and shapes. This invention's automatic evaluation of ABUS image scanning depth enables standardization of ultrasound screening.
Owner:广州格希丽医疗科技有限公司

Method for using anatomical landmarks of balance organ to construct three-dimensional cephalometric coordinate system

A method for using anatomical landmarks of a balance organ to construct a three-dimensional cephalometric coordinate system includes acquiring a CT image of a craniofacial region to be measured. The anatomical landmarks of the CT image are determined. On the basis thereof, a horizontal plane, and then a coronal plane and a median sagittal-plane plane are determined. The horizontal plane is a plane formed by certain of the anatomical landmarks. The coronal plane is determined using the horizontal plane and anatomical landmarks, and the median sagittal plane is determined using an anatomical landmark and both the horizontal and coronal. An intersection point of the three planes is used as the origin of a three-dimensional cephalometric coordinate system.
Owner:INST OF AUTOMATION CHINESE ACAD OF SCI

Suture hole geometry and methods for attaching tissue to orthopedic implants

Orthopedic implants and related surgical methods for using same. The implants have suture bore geometries that facilitate performance of the surgical methods, thereby providing for improved optimal biomechanical force application in various anatomies. The implants include suture bores that have an angled / diagonal, or skewed, orientation within the anatomical planes (lateral / sagittal and frontal / coronal). The suture bores have the skewed orientation so that the adjacent soft tissues (i.e., tendons or ligaments) can be advanced via the suture therethrough in superior-inferior and inferior-superior directions. Openings, or holes, at the ends of the suture bores are configured to approximate the adjacent associated soft tissue to the implant.
Owner:ONKOS SURGICAL INC

Anti-crosstalk biological rehabilitation electric signal safety control method and system under high-density scene

The application relates to the technical field of behavior feature recognition, and discloses an anti-crosstalk biological rehabilitation electrical signal safety control method and system in a high-density scene. The method comprises the following steps: calculating a bilateral average distance according to an environmental distance; calculating a surface electromyogram signal root mean square value according to an electromyogram original signal; analyzing a pelvis tilt angle standard deviation according to the pelvis tilt angle; calculating a hip joint adduction auxiliary torque according to the surface electromyogram signal root mean square value and a gait phase; calculating a hip joint coronal plane impedance value according to the gait phase and the pelvis tilt angle; calculating an intention state according to the surface electromyogram signal root mean square value, the pelvis tilt angle and a channel state; calculating a hip joint driving torque according to the hip joint adduction auxiliary torque and the hip joint coronal plane impedance value; and calculating a system mode according to the bilateral average distance, the surface electromyogram signal root mean square value and the pelvis tilt angle standard deviation. The application improves the lower limb rehabilitation training efficiency by adaptively adjusting the gait.
Owner:YANGZHOU YIHANG MEDICAL EQUIP CO LTD

X-ray machine adjusting device for spine isthmus detection

The utility model relates to the technical field of X-ray adjusting devices, in particular to an X-ray machine adjusting device for spinal isthmus detection. The X-ray machine adjusting device comprises a bearing disc, a motor and a rotary knob adjusting switch assembly, the top face of the bearing disc is used for making contact with the feet of a subject and bearing the subject, the motor is connected with the bottom face of the bearing disc and used for providing power for rotation of the bearing disc, and the rotary knob adjusting switch assembly is used for adjusting the rotary knob adjusting switch assembly. The knob adjusting switch assembly is electrically connected with the motor and used for controlling rotation of the motor. The switch assembly is adjusted by rotating the knob, so that the motor rotates, the bearing disc is driven to rotate, and the angle between the coronal plane of a subject standing on the bearing disc and the irradiation direction of the X-ray machine is changed. The problems that the rotating angle does not meet the requirement, the spinal spondylolysis examination efficiency is low and the accuracy is poor when an examinee is subjected to spondylolysis examination are solved.
Owner:AIR FORCE MEDICAL CENT PLA

Fitting type adjustable gasket device for inner side opening wedge-shaped high tibial osteotomy

The invention discloses a fitting type adjustable gasket device for wedge-shaped high tibia osteotomy with an inner opening. The fitting type adjustable gasket device comprises an upper cover, a floating cover, a double-side different-curve cam, a worm gear-worm transmission pair and a base, the worm gear is driven by rotating the worm, and then the double-side different-curve cams are driven to rotate synchronously. The double-side different-curve cam is unique in design, and the curved surfaces of the cams on the two sides of the double-side different-curve cam have specific curvature radius difference. In the rotation process of the cam, the curvature radius difference is utilized to accurately drive the floating cover to stably lift in the vertical direction, and meanwhile, the floating cover can controllably rotate around a coronal shaft. The combined movement mechanism enables the device to accurately generate the required coronal plane angle beta at one time in the operation. By means of the design, accurate adjustment of the angle is achieved, more importantly, large-area and uniform face-face contact can be effectively promoted to be formed between the osteotomy face and the floating cover, and therefore the supporting stability is remarkably improved, the risk of bone face collapse caused by local stress concentration is thoroughly eliminated, and reliable structural support is provided for postoperative recovery.
Owner:THE THIRD HOSPITAL OF HEBEI MEDICAL UNIV +3

A new anterior locking plate for C2, C3 internal fixation

This invention discloses a novel anterior locking bone plate specifically for internal fixation of the second and third cervical vertebrae, belonging to the field of orthopedic implant technology. The bone plate comprises an upper plate for fixation to the second cervical vertebra and a lower plate for fixation to the third cervical vertebra, the upper and lower plates being an integral structure. In the sagittal plane, the angle between the upper and lower plates is 100-150 degrees; in the horizontal plane, both the upper and lower plates are curved surfaces, with the upper plate having a radius of curvature of 9-10 mm and the lower plate 11-12 mm; in the coronal plane, the plate is an isosceles trapezoid, narrower at the top and wider at the bottom. Based on the location of the second cervical vertebra, this invention finds a suitable approach that avoids obstruction of the surgery by the mandible while providing maximum holding force and stability. It optimizes the transverse and longitudinal curvature and overall shape of the bone plate, improving its conformity to the morphology of the second cervical vertebra, making the surgery safer and more fitting, and providing reliability and convenience unattainable by traditional bone plates.
Owner:THE THIRD HOSPITAL OF HEBEI MEDICAL UNIV

Hinge-connector spinal correction device and method

A spinal correction device includes a stabilizer assembly including: a hinge including: a first rod carrier; the second rod bearing piece is rotatably connected to the first rod bearing piece, so that the stabilizer assembly has a coronal plane motion freedom degree or a sagittal plane motion freedom degree or has both the coronal plane motion freedom degree and the sagittal plane motion freedom degree; the locking mechanism is used for locking the first rod bearing piece and the second rod bearing piece at a required angle; the first stabilizer bar is connected with the first bar bearing sheet; the second stabilizer bar is connected with the second bar bearing sheet; and a plurality of single-axis or multi-axis connectors, where each single-axis or multi-axis connector is movably connected to the first or second stabilizer bar and is movably connected to a first spinal rod or a second spinal rod fixed to the spinal column; wherein the stabilizer assembly is connectable to the first or second spinal rod to stabilize the spinal column, preventing compression, traction, or displacement of the spinal cord during spinal correction.
Owner:TEXAS SCOTTISH RITE HOSPITAL FOR CHILDREN

Calcium score integral calculation method and device, electronic equipment and storage medium

The application provides a coronary artery calcification score calculation method and device, electronic equipment and a storage medium. The calculation method comprises: acquiring a plurality of 2D coronal plane CT images determined according to a 3D coronary artery plain CT image of a patient; for each 2D coronal plane CT image, inputting the 2D coronal plane CT image into a pre-constructed calcification classification model to determine calcification regions included in the image and coronary artery vessel type labels of each calcification region; performing matrix multiplication on the image corresponding to the determined calcification region and the 2D coronal plane CT image to determine a vessel calcification plaque including only the coronary artery vessel type label; performing calcification score calculation on the vessel calcification plaque including only the coronary artery vessel type label determined for each 2D coronal plane CT image to determine the total coronary artery calcification score of the patient. In this way, the coronary artery calcification score calculation based on the plain CT can be automatically and quickly and accurately completed.
Owner:SHENZHEN RAYSIGHT INTELLIGENT MEDICAL TECH CO LTD