40 results about "Spinal model" patented technology

A computer program for spine mobility simulation is configured, if running on a computer, to cause the computer to perform the following steps: a) accessing bio-metric data which relate to the spine of a patient, the spine having at least one compromised spine segment; b) displaying a model of the spine of the patient comprising a plurality of vertebrae; c) enabling a user to change the position of at least one of the vertebrae of the spine model; d) computing the effects of the position change on the remaining vertebrae; e) displaying the spine model in a new configuration, thereby taking into account the position changed by the user in step c) and the position changes of the remaining vertebrae computed in step d).

Systems and methods for performing surgery based on an analysis of images captured in at least two different planes are disclosed. According to some embodiments, a first X-ray image of a spine in a first plane and a second X-ray image of the spine in a second plane are obtained, and a curve is drawn on the first and second X-ray images so that the curve tracks the vertebral bodies of the spine. The coordinates of the curve in the first and second X-ray images are determined by performing image processing to detect the curve in the X-ray images. A three-dimensional model of the spine is constructed based on the coordinates. The model is analyzed based on medical data relating to the spine and models of other spines to determine parameters of a spinal device. The spinal device is constructed and deployed in the spine based on the parameters.

The invention relates to a three-dimensional spinal lateral protrusion reconstructing method based on orthophoric and lateral phases, belonging to the field of computer-aided measurement. The three-dimensional spinal lateral protrusion reconstructing method based on the orthophoric and lateral phases comprises the following specific steps of: firstly, setting beginning and ending seed points at gravity centers of a first thoracic vertebra and a last lumbar vertebra in an X-ray film in the orthophoric and lateral phases respectively; secondly, acquiring gravity centers of other vertebras by reasoning transversely and longitudinally; thirdly, fitting all the gravity center points into a curve by a curve fitting algorithm; fourthly, computing the included angle between the normal of each gravity center point on the curve and the horizontal line and the offset of each gravity center point relative to the first gravity center point, wherein the inclined angle between two gravity center points of orthophoric and lateral phases of a same vertebra and the offsets of the two gravity center points form a spatial three-dimensional parameter; and finally, according to the spatial three-dimensional parameter of each vertebra, translating and rotating the corresponding vertebra in a standard spinal model according to the three-dimensional parameter so as to form a spinal spatial three-dimensional model for pathological changes of a patient suffering from the spinal lateral protrusion. According to the three-dimensional spinal lateral protrusion reconstructing method, the time for performing X-ray scanning on the human body is shortened.

The invention relates to a device for cardio-pulmonary resuscitation training. The device comprises a training model, a physical sign acquisition module and a data processing and transmission module,a sternum model in the training module is made of stainless steel elastic plate strips; the physical sign acquisition module comprises a pressing detection module, a displacement detection module, andan artificial respiration detection module, wherein the pressing detection module is arranged on the sternum model, a pressing pressure stressed on the sternum model is induced to generate a pressingdetection signal, the displacement detection module is arranged on a spinal model and corresponds to the position of the pressing detection module, the change of the distance between the sternum model and the spinal model is detected to generate a displacement detection signal; the artificial respiration detection module is arranged in a simulated chest cavity, and the gas flow in the simulated chest cavity is detected to generate a gas flow detection signal; the data processing and transmission module receives the pressing detection signal, the displacement detection signal and/or the gas flow detection signal and sends to a data processing device for analyzing and processing, cardio-pulmonary resuscitation training monitoring data and/or result data is generated and output.

The invention discloses a fast three-dimensional reconstruction method for a spinal CT image, belongs to the medical field, and aims at solving problems that a spinal model is long in three-dimensional reconstruction time and is not sufficient in smoothness in the actual operation and teaching and research of the clinical medicine, especially in a screw implantation operation of vertebral pedicle.The invention provides the fast three-dimensional reconstruction method for the spinal CT image, and the method comprises the steps: performing preprocessing according to a three-dimensional reconstruction surface drawing theory through employing a characteristic selection bilateral filtering denoising algorithm, performing the improvement on the basis of a conventional MC (Marching Cubes) algorithm, selecting a seed voxel, extracting all voxels comprising a contour surface through the regional growth idea, determining a triangulation configuration of the contour surface in the voxels, carrying out the parallel processing through a visualization toolkit VTK and Open GL with the help of a GPU, and completing the fast and precise three-dimensional reconstruction of the spinal CT image. Themethod is of great significance to the analysis, research, actual operation and operation scheme formulating of spinal diseases.

The invention discloses a design method of a personalized 3D printing scoliosis orthosis. The method comprises the following steps: acquiring the scoliosis spine of a patient, performing three-dimensional modeling to obtain a scoliosis spine model and a soft tissue model, and drawing a cross section profile curve of an orthosis based on the two-dimensional cross section profile curve of the trunkof the patient; carrying out lofting operation and outward stretching on the cross section profile curve to obtain an orthosis model; carrying out density distribution optimization on the orthosis model to obtain an orthosis density distribution diagram; carrying out weight reduction design and back opening on the orthosis model based on the orthosis density distribution diagram to obtain an orthosis model; and finally importing the orthosis model, the spine model and the soft tissue model into finite element software together, carrying out finite element biomechanical simulation evaluation, redrawing the orthosis model with poor evaluation, and taking the H orthosis model with good evaluation as a final model. The method has the advantages of being low in manufacturing requirement, high in consistency of the orthopedic effect and good in comfort.

The invention is applicable to the technical field of medical engineering, and provides a spine model generation method, a spine model generation system and a terminal, wherein the method comprises the steps of training a generative adversarial network model according to a non-lesion spine image; through the trained generative adversarial network model, carrying out image restoration on a lesion occurrence part in a lesion spine image to obtain a target spine image, the lesion occurrence part in the target spine image being restored to be in a non-lesion spine form; and carrying out three-dimensional reconstruction on the target spine image, obtaining a corresponding target spine model, improving the accuracy of the spine prosthesis preparation, and reducing the activity limitation after the prosthesis is implanted into the body of the patient.

The invention relates to a multi-form demonstration device for an experimental spine model. The device comprises a rotary foot-type base, a main board and a fixed demonstration platform, the main board is installed at the upper end of the rotary foot-type base, and the fixed demonstration platform is installed at the upper end of the main board. The device can solve the problems that an existing demonstration device usually hooks the upper end of the spine model to make the model hung, fixation is incomplete, and only the current form of the spine model is kept for demonstration; the demonstration form is single, the demonstration effect is poorer, and interaction between the demonstration device and lookers is low, and have the advantages that the upper, middle and lower ends of the spinemodel are fixed at the same time, fixation is firm, the lookers can adjust the curvature of the spine model and rotate the spine model, interaction is improved, and multi-form demonstration improvesthe demonstration effect.

The invention discloses a spine model construction method and device and a storage medium, and the method comprises the following steps: obtaining a spine CT image, and obtaining a motion simulation result of an experiment model; generating a finite element model according to the spine CT image; simulating the finite element model to obtain a simulation result; carrying out sensitivity analysis according to a simulation result; and adjusting the finite element model according to the sensitivity analysis result and the motion simulation result to obtain a calibration model. According to the invention, the finite element model is generated according to the spine CT image; simulation and sensitivity analysis are carried out, and the finite element model is adjusted according to the motion simulation result and the sensitivity analysis result obtained after motion simulation is carried out on the experimental model to obtain the calibration model, so that the calibration model can fully reflect the influence of the dynamic load under the motion condition, and can be well suitable for the dynamic load condition. The method can be widely applied to the technical field of spine models.

The invention provides a method for reproducing a spinal three-dimensional structure based on 2.5-dimensional ultrasonic panoramic imaging. The method comprises: acquiring a 2.5-dimenisonal ultrasonicpanorama including left and right transverse processes of the spine, and acquiring two transverse process surface 2.5-dimensional ultrasonic panoramas of the left and right sides in a three-dimensional space; positioning the left and right transverse processes of the spine in the 2.5-dimensional ultrasonic panoramas; using three-dimensional positional information of the transverse processes to match a spinal model so as to reproduce the spinal three-dimensional structure. The method herein can be utilized to provide more visual spinal three-dimensional structure for medical personnel, and themethod has better visuality and interactiveness.

The invention provides a device and method for testing rachiocamposis biological mechanics and motion range, and relates to the field of spinal column analysis. The device comprises one or more adjusting mechanisms and a pair of clamping apparatuses oppositely arranged, wherein each adjusting mechanism is connected with the corresponding clamping apparatus to drive the corresponding clamping apparatus to perform six-degree-of-freedom movement, so that the bending and twisting state of a spinal column model which is jointly grasped by the other clamping apparatus is changed. The six-degree-of-freedom adjusting is performed on the clamping apparatuses through the adjusting mechanisms, so that the bending force and the twisting force are exerted on the spinal column model through the clampingapparatuses; a sensor and an image collecting mechanism are arranged to obtain mechanics data and image information, so that measuring of mechanics and the motion range corresponding to the spinal column model is realized.

The invention discloses a free three-dimensional spine ultrasonic imaging system which comprises an ultrasonic probe, a B-ultrasonic signal processor and an upper computer. The upper computer comprises a three-dimensional data processor, a three-dimensional spine model renderer, a three-dimensional spine model corrector, a three-dimensional model displayer and a two-dimensional image displayer, and the ultrasonic probe is connected with the upper computer through an interface converter which is a data collection card. A control method of the system includes following steps: S1, performing ultrasonic scanning; S2, correcting a three-dimensional spine model for the first time; S3, rendering the three-dimensional spine model; S4, correcting the three-dimensional spine model for the second time. A standard spine skeleton three-dimensional spine model which is guided in from the outside is utilized as a reference, dynamic scanning and real-time visualization of the three-dimensional spine model are realized, and complete ultrasonic three-dimensional spine scanning data can be acquired. Ultrasonographic accuracy and efficiency can be improved, the system is simple in structure, scanningprocess and equipment mounting and adjusting can be ensured to be simple and easy to implement, and examination expense can be made low.

A spine 3D modeling method based on cone beam virtual rotation includes the following steps that firstly, a cone beam projection image of a common C arm machine is pretreated to obtain a cone beam projection image after treatment to serve as a C arm cone beam; secondly, virtual rotation reprocessing is carried out on the C arm bone beam obtained through the step one, and a virtual cone beam projection image is obtained through calculation; thirdly, relevant parameters in the 3D modeling method are regulated, and a spine 3D voxel model is rebuilt based on the virtual cone beam projection image by the adoption of the regulated method. According to the spine 3D modeling method based on the cone beam virtual rotation and relaying on common C arm machines owned by most hospitals at present, the spine 3D model having significance in the aspects of clinical diagnosis, operation planning and operation guiding operation can be rebuilt.

An ultrasound training model which exhibits optically clear soft tissue-mimicking materials that are simultaneously acoustically scattering and self-healing to needle punctures. An exemplary embodiment is disclosed that comprises an embedded bone-mimicking spine model and a dual-purpose lid that may be used as a friction surface mat. Various embodiments of the training model materials are disclosed.

The invention belongs to the technical field of spinal surgery internal fixation models, and discloses a spinal surgery internal fixation model for teaching and doctor-patient communication. The spinal surgery internal fixation model for teaching and doctor-patient communication comprises a three-dimensional scanning module, a three-dimensional data import module, a spinal model construction module, a rendering module, a spinal model labeling module and a display module. The technical problem that a spine three-dimensional model constructed in an existing method is inaccurate is effectively solved through the spine model construction module; meanwhile, through the rendering module, a developer is prevented from developing various different shaders, maintenance is facilitated, memory and performance overhead for user equipment is extremely low, and the rendering efficiency of the spine three-dimensional model is improved.

The invention discloses an augmented reality assisted spine internal fixation screw implantation method and system, and relates to the technical field of spine pedicle screw implantation, the method comprises the following steps: creating a virtual spine three-dimensional model according to patient lesion image data; making an operation plan according to the virtual spine three-dimensional model, and obtaining a virtual spine three-dimensional model with the operation plan; importing the virtual spine three-dimensional model with the operation plan into VR equipment to obtain a retina projection 3D model with the operation plan; a doctor wearing AR equipment, performing matching calibration on the retina projection 3D model with the operation plan and the real spine model, performing locking after calibration is completed, obtaining the calibrated projection 3D model with the operation plan, and completing an operation on the real spine model according to the operation plan shown by the projection 3D model; and evalulating the accuracy of nail planting. The nail implanting accuracy is remarkably improved, and the risk of navigation drifting in an operation is greatly reduced.