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271 results about "Bones joints" patented technology

Bone joint disease rehabilitation training optimization system

The invention discloses an osteoarticular disease rehabilitation training optimization system, and relates to the field of medical training, and the system comprises an authority control module which is used for connecting an electronic medical system, obtaining the reading authority of historical and current medical data of a patient, and obtaining the instruction control and data reading authority of each functional module; the multimode acquisition module is used for acquiring pathological bone joints, associated musculoskeletal data and personal basic data through the authority control module, and converting original data into feature vectors of muscle activation degree, bone joint activity degree and skeleton stress distribution of a corresponding area of a patient body; by integrating medical data, musculoskeletal features and economic condition information of a patient, a personalized model is constructed to output an optimal adaptive training item and specific data thereof, the compensatory load of a non-ill-conditioned joint is evaluated, and timely intervention is performed through a fusing mechanism when abnormity is monitored in real time, so that the safety is ensured.
Owner:JILIN UNIV FIRST HOSPITAL

Micro-fluidic chip, system and method for osteochondral organs

The invention provides a microfluidic chip, system and method for osteochondral organs, and relates to the technical field of organoid microfluidic chips, the chip comprises a bone microvascular endothelial cell channel, a bone compartment, a cartilage compartment and a synovial fluid channel which are arranged in parallel and in sequence, and permeation areas between the channel and the compartments and between the compartments. According to the scheme, the complex structure and function of a human osteochondral system are effectively simulated, the physiological and pathological processes of human bone joints can be simulated more truly in an in-vitro environment, and a method for establishing a highly-simulated femoral head necrosis model and osteoarthritis model based on the chip is provided. The problems that a traditional model is insufficient in physiological environment simulation, lack of control over dynamic culture conditions, tedious and time-consuming in the construction process, difficult to support high-throughput experiments and the like are solved.
Owner:CHINA JAPAN FRIENDSHIP HOSPITAL

Computer visual recognition and guidance system for spinal rehabilitation training actions

The invention relates to the technical field of spine rehabilitation training, and discloses a computer vision recognition and guidance system for spine rehabilitation training actions. The system comprises a data acquisition module for acquiring user spine motion three-dimensional dynamic image data by using a multi-camera array; the action recognition module tracks bone joint points based on an improved algorithm to generate a real-time action sequence; the posture evaluation module is used for extracting spine curvature and joint angle features through a multi-scale convolutional neural network; the guidance instruction generation module inputs the features into a reinforcement learning model to generate a personalized instruction; and the feedback execution module constructs a fuzzy self-adaptive control model to correct the motion trail of the spine. According to the system, training actions can be accurately recognized, personalized guidance is provided, real-time correction is achieved, the spine rehabilitation training effect is effectively improved, subjectivity and errors of manual evaluation are reduced, and rehabilitation requirements of different patients are met.
Owner:JIANGSU PROVINCE HOSPITAL (THE FIRST AFFILIATED HOSPITAL OF NANJING MEDICAL UNIVERSITY)

Bone joint lesion recognition method and device based on multi-modal information fusion

The invention provides a bone joint lesion recognition method and device based on multi-modal information fusion, electronic equipment and a computer readable storage medium. The bone joint lesion recognition method based on multi-modal information fusion comprises the following steps: acquiring a bone joint part image and text information; wherein the text information comprises bone joint questionnaire information and historical case information, and the bone joint questionnaire information comprises patient identity information and bone joint function evaluation information; performing image coding layer feature extraction on the bone joint part image to obtain image feature information; performing text coding layer feature extraction on the text information to obtain text feature information; performing multi-modal information fusion on the image feature information and the text feature information to obtain fused feature information; and bone joint lesion recognition is carried out based on the fusion feature information. According to the embodiment of the invention, the osteoarthropathy can be identified more accurately.
Owner:LONGWOOD VALLEY MEDICAL TECH CO LTD

Snake bone joint, flexible joint assembly, surgical operation arm and surgical robot

The invention discloses a snake bone joint, a flexible joint assembly, a surgical operation arm and a surgical robot. The snake bone joint comprises two snake bone bases which can rotate based on respective pivots, the two pivots are parallel and have a constant distance, and the snake bone joint further comprises a first limiting structure and a second limiting structure which are arranged between the two snake bone bases. The first limiting structure comprises a first protrusion and a first groove which make contact with each other, the first protrusion is arranged on one snake bone base part, and the first groove is formed in the other snake bone base part. The second limiting structure comprises a second bulge and a second groove which are in contact with each other, the second bulge is arranged on one snake bone base part, and the second groove is arranged on the other snake bone base part; the pivot of one snake bone base is a first pivot, and the vertical distance between the first protrusion and the first pivot is larger than the vertical distance between the second protrusion and the first pivot. Therefore, the snake bone joint has the advantages of being high in bending precision and high in load deformation resistance.
Owner:MAIDER MEDICAL IND EQUIP

Titanium-based hydroxyapatite composite coating and preparation method thereof

The invention discloses a titanium-based hydroxyapatite composite coating and a preparation method thereof. The problems that a traditional coating is weak in interface bonding, single in porosity and mismatched in drug sustained release are solved. The composite coating comprises a gradient component layer and a bionic porous outer layer which are sequentially stacked on the surface of a titanium substrate, wherein the gradient component layer comprises a bottom layer (a titanium-based hydroxyapatite transition layer, 70-80% of HA and bonded through Ti-O bonds) and a middle layer (an HA / bioglass composite layer, 50-70% of HA and 10-20% of bioglass); the bionic porous outer layer is a porous HA layer, the porosity is 40-60%, the porosity is gradually increased in a gradient mode in the direction away from the titanium substrate, surface layer pores are loaded with anti-infection drugs, and inner layer pores are loaded with bone growth factors. The method realizes improvement of the interface bonding strength of the coating, consideration of mechanical and biological activity and staged slow release of the medicine, and is suitable for the field of bone joint implantation.
Owner:SHENZHEN GMCB BIOLOGICAL PRODUCTS DEVELOPMENT CO LTD

Snake bone joint, flexible joint assembly and surgical operation arm

The utility model discloses a snake bone joint, a flexible joint assembly and a surgical operation arm, relates to the technical field of medical instruments, and aims to relieve the problem that two snake bones slide in an uncertain dislocation mode when the snake bone joint is bent. The snake bone joint comprises a first snake bone and a second snake bone, the first snake bone and the second snake bone can rotate based on respective pivots, the two pivots are parallel, and the distance between the two pivots is constant; the first snake bone comprises a restraint roller, the second snake bone comprises a restraint hole site, and the restraint roller is movably arranged in the restraint hole site; the restraining hole site comprises a first restraining face and a second restraining face which are oppositely arranged, and the restraining roller arranged in the restraining hole site is clamped between the first restraining face and the second restraining face. Therefore, the snake bone joint has the advantage that the bending precision and the load deformation resistance of the snake bone joint are improved.
Owner:MAIDER MEDICAL IND EQUIP

Bone joint repairing composition containing stem cell vesicles and application thereof

The invention discloses a bone joint repairing composition containing stem cell vesicles and application of the bone joint repairing composition, and relates to the technical field of bone joint repairing compositions.The bone joint repairing composition is prepared from, by weight, 90-110 parts of stem cell vesicles and 41-57 parts of thelenota ananas saponin Ananaside A. The stem cell vesicles and the thelenota ananas saponin Ananaside A are combined to form the bone joint repairing composition. The stem cell vesicles are extracellular vesicles derived from human amniotic mesenchymal stem cells. According to the bone joint repairing composition provided by the invention, the stem cell vesicles and the thelenota ananas saponin in a proper proportion are matched for use, so that the synergistic interaction between the stem cell vesicles and the thelenota ananas saponin is realized. Animal experiments show that the composition has a remarkable repairing effect on a rat model with bone and joint injuries, can effectively relieve bone and joint pain symptoms of rats, not only widens the application field of human amniotic mesenchymal stem cell-derived extracellular vesicles, but also provides a new clinical treatment means for bone and joint repairing.
Owner:SICHUAN XINBIXUE BIOTECHNOLOGY CO LTD

Rotationally stable telescoping intramedullary nail

InactiveUS20250221746A1Internal osteosythesisFastenersSkeletal anatomyRotational stability
A telescopic nail with rotational stability, where the female component is externally D-Shaped through a special burnishing process or a plastic deformation, and the male component nests in the form of the female. The male component is partially D-Shaped to lock the two components together for easy removal. The thread of the tapered head of the female component has multi-leads and is synched with the multi-lead thread of the proximal head on the male components. The number of leads and the length of the thread are adaptable to the child's bone anatomy in such ay there is no intrusion of the bone joint. The male and female are locked together as an assembled nail and inserted simultaneously in the bone intramedullary canal. In case of revision or hardware removal surgeries, the assembly nail components are removed simultaneously together.
Owner:ZAVANI IMED

Bone joint wound dressing fixer

The invention discloses a bone joint wound dressing fixator, relates to the technical field of medical instruments, and particularly aims to solve the problems that in the prior art, when an existing joint dressing is used, due to the fact that the joint of a patient does rehabilitation exercise, the dressing rubs against the wound of the patient, the wound of the patient is hurt, and the patient feels uncomfortable. In order to solve the problem that the dressing cannot be tightly attached to the wound all the time on the basis that rehabilitation exercise is not affected, the bone joint wound dressing fixator comprises an elastic fixing band, a knee protection sleeve, a synchronous moving mechanism, an air conveying mechanism, an air ring and a self-adaption mechanism. The dressing and the wound of the patient are always kept in an attached state in the movement process of the patient, friction between the dressing and the wound is greatly relieved, and cooling, ventilating and drying operation is conducted on the wound at the same time.
Owner:SHENZHEN FUTIAN DISTRICT SECOND PEOPLES HOSPITAL

Multi-modal image feature fused knee joint fraction prediction method and system

The invention discloses a knee joint fraction prediction method and system fused with multi-modal image features. The knee joint fraction prediction method fused with the multi-modal image features obtains a knee joint prediction fraction of an object through five steps. The method has the beneficial effects that 1, deep learning, radiomics characteristics and combined clinical characteristics are fused, the magnetic resonance T1 sequence image of the knee joint is processed and analyzed, the popliteal artery ROI is marked, and related radiomics and deep network characteristics are extracted; compared with traditional single feature analysis, the method has the advantages that more comprehensive and accurate disease assessment is provided, and the accuracy and reliability of knee osteoarthritis prediction are improved. And 2, the method is based on the obvious relation between the popliteal artery and the knee bone joint, innovatively analyzes the image features of the popliteal artery and combines clinical data, so that the method not only can predict the occurrence and progress of the osteoarthritis more accurately in an earlier stage, but also obviously improves the prediction effect.
Owner:SOUTHERN MEDICAL UNIVERSITY

System for determining angle of osteotomy

The present invention relates to a system for determining the angle of osteotomy. The system comprises a plurality of liners, a pressure measurement apparatus and a processing module. Each liner comprises a liner body having an upper surface and a lower surface. A longitudinal distance between a slope region of each upper surface and a planar region of the upper surface gradually increases from a position near the geometric symmetry central axis of the liner to both sides of the liner, so as to define the degree of a tilt angle. The pressure measurement apparatus is used for measuring a pressure applied by each of two extremity sides of a bone joint, so as to determine a pressure difference value. The processing module is configured to determine an angle of osteotomy for the extremity sides on the basis of the tilt angles of the liners that balance the tension of the two extremity sides. The present invention restores the tension condition in a real working state of a joint before osteotomy and takes into account the balance state of the tension of soft tissue as a consideration for the angle of osteotomy, thereby effectively solving the problem of unbalanced tension between soft tissue at the inner and the outer sides of knee joints after total knee arthroplasty, and keeping the original mechanical performance of knee joints of patients after surgery.
Owner:SUZHOU AIQIAO MEDICAL SCIENCE & TECHNOLOGY CO LTD

Body accessory automatic adaptation method for personalized body type of digital human

The invention discloses a body accessory automatic adaptation method for a personalized body type of a digital human, and the method comprises the steps: constructing an SMPL human body model, setting a standard SMPL human body model in a reference form, and generating a target SMPL human body model according to the change state of a set target body type; making a corresponding body accessory model based on the standard SMPL human body model; constructing an RBF (Radial Basis Function) interpolation function according to the displacement change of the vertexes of the related parts of the human body from the standard SMPL human body model to the target SMPL human body model, inputting the coordinates of the vertexes of the body accessory model into the interpolation function to obtain new vertex coordinates of the body accessory model, and outputting the new vertex coordinates of the body accessory model to the target SMPL human body model. The body accessory model and the skeleton joint points are matched with the target SMPL human body model. According to the method provided by the invention, automatic adaptation of the body accessory and the digital human body shape change is efficiently and accurately realized, and the sense of reality and interactivity of the digital human are effectively improved.
Owner:TIANXIANG RUIYI

Anoectochilus roxburghii polysaccharide and application thereof in preparation of cartilage injury repair medicine

The invention discloses a Zhejiang anoectochilus roxburghii polysaccharide and application thereof in preparation of cartilage injury repair medicine.The Zhejiang anoectochilus roxburghii polysaccharide is characterized in that a crude polysaccharide AZJP is extracted from the Zhejiang anoectochilus roxburghii polysaccharide through a hot water extraction method, an anion exchange column DEAE-celluse-52 and a gel permeation chromatographic column Sephadex G-200 are used for separating the AZJP, and the Zhejiang anoectochilus roxburghii homogeneous polysaccharides AZJP-1a, AZJP-2a, AZJP-2b and AZJP-2c are obtained; measuring UV (ultraviolet), IR (infrared), molecular weight, monosaccharide composition, methylated sugar residues, NMR (nuclear magnetic resonance) signals, triple helix structures, SEM (scanning electron microscope) and AFM (atomic force microscopy) surface microstructures and cartilage repair activity; the four homogeneous polysaccharides have remarkable cartilage repair activity on transgenic zebrafish, are superior to a positive drug alendronate sodium, and have application prospects in development of drugs for treating osteoarticular cartilage injuries.
Owner:ZHEJIANG UNIV OF TECH

Snake bone assembly, insertion part and endoscope

The invention discloses a snake bone assembly, an insertion part and an endoscope, and relates to the field of medical instruments.The snake bone assembly comprises a first bent section and a second bent section, the first bent section comprises a plurality of first snake bone joints which are sequentially riveted, the far end of the second bent section is connected with the first bent section, the second bent section comprises a plurality of second snake bone joints which are sequentially riveted, and the far end of the second bent section is connected with the far end of the second bent section; the side walls of the second snake joints are provided with steering kerfs, and the rotating gap between every two adjacent first snake joints is larger than the rotating gap between every two adjacent second snake joints. Under the action of the same acting force, the first bent section can rotate prior to the second bent section, so that the insertion part rotates from far to near in sequence, the rotation space of the insertion part is reduced, and the rotation effect of the insertion part is improved. And the second bending section comprises a plurality of riveted second snake-shaped joints, the rotating gaps of the second snake-shaped joints are smaller than those of the first snake-shaped joints, and the rotating gaps of the second snake-shaped joints can realize small-amplitude rotation of the second bending section, so that the problem that the structural stability is damaged due to internal force concentration is solved.
Owner:HUNAN HUAXIN MEDICAL TECHNOLOGY CO LTD

Bone joint X-ray film tiny fracture automatic identification method based on edge detection

The invention relates to the technical field of bone joint X-ray image segmentation, in particular to a bone joint X-ray film tiny fracture automatic identification method based on edge detection. The method comprises the following steps: acquiring a bone joint surface edge coefficient according to gray distribution and gradient distribution of pixel points in a bone joint X-ray image, and further acquiring a bone joint region; obtaining a weak edge coefficient of the edge region according to the distribution of edge pixel points in the region; obtaining the number of fused pixel points of the outer side pixel points according to the gray difference between the inner and outer side pixel points and the outer side adjacent pixel points in the edge area; combining the weak edge coefficient to obtain a fusion coefficient of the edge region; and the tiny fracture is positioned according to the fusion coefficient of the marginal area in the bone joint layering. According to the invention, the fracture line generated by the tiny fracture can be identified, so that related personnel can accurately identify the tiny fracture area appearing in the body of a patient.
Owner:AFFILIATED HOSPITAL OF SHAANXI UNIV OF TRADITIONAL CHINESE MEDICINE

Endoscope and one-way bending variable-pitch snake bone thereof

The utility model relates to an endoscope and a one-way bending variable-pitch snake bone, the one-way bending variable-pitch snake bone comprises a head end snake bone joint, a plurality of middle snake bone joints and a tail end snake bone joint which are sequentially and rotatably connected, one end of the head end snake bone joint is connected with an endoscope camera shooting part, and the other end of the head end snake bone joint is connected with an endoscope camera shooting part; one end of the tail end snake joint is connected with the endoscope insertion part; the lengths of the multiple middle snake joints are sequentially increased in the extending direction from the head end to the tail end; the endoscope is composed of the one-way bending variable-pitch snake bone. According to the snake bone, the lengths of the snake bone joints are sequentially increased in the extending direction from the head end to the tail end, the snake bone joints are variable in pitch and are shortened from back to front, the bone pitch is shortened, the position is softer than the position with the long pitch, stress can be bent from the position with the short pitch firstly, the sweeping area of a human body is small, and the operation pain of a patient is reduced.
Owner:江苏熙和医疗科技有限公司

Bone joint synovial fluid detection and analysis system based on microfluidics

The invention relates to the technical field of online detection and analysis, and discloses a bone joint synovial fluid detection and analysis system based on microfluidics, which specifically comprises the following steps: acquiring synovial fluid rheological data and synovial fluid molecular activity data in a bone joint movement process and cartilage surface morphological data in a joint buckling process through a biosensor; constructing a synovial fluid dynamic anomaly analysis model, and performing synovial fluid function anomaly analysis through the synovial fluid rheological data and the molecular activity data; a cartilage stress anomaly analysis model is constructed, and cartilage stress anomaly analysis is carried out through cartilage surface morphological change data; obtaining a synovial fluid function abnormality analysis result and a cartilage stress abnormality analysis result to carry out bone joint function adaptability analysis; and acquiring a bone joint function adaptability analysis result and carrying out synovial fluid function abnormality analysis early warning. The problem that in the prior art, due to the fact that the bionic degree of a detection strategy is insufficient and bone joint dynamic parameters are deficient, the association degree of a static synovial fluid detection result and the actual joint rehabilitation condition of a patient is poor is solved.
Owner:SHANDONG PROVINCIAL HOSPITAL AFFILIATED TO SHANDONG FIRST MEDICAL UNIVERSITY (SHANDONG PROVINCIAL HOSPITAL)

Cervical vertebra bone age staging method based on combined model

The invention relates to a cervical vertebra bone age staging identification method. The method comprises the following steps: S1, acquiring a skull side film of a cervical vertebra bone age staging object; s2, inputting the skull side position film into a cervical vertebra region target detection model to remove irrelevant backgrounds, and only retaining target regions containing C2, C3 and C4 joints; s3, inputting the area detected in the S2 into an instance segmentation model to segment C2, C3 and C4 joints, and labeling category labels; s4, inputting the area detected in the S2 into a mark point detection model to extract mark points with detail information at the edges of the bone joints C2, C3 and C4; and S5, inputting the features extracted in S3 and S4 into a cervical vertebra staging estimation module to obtain a final staging result. Compared with the prior art, the method has the advantages that the traditional manual skull side position film evaluation is converted into automatic detection, segmentation and staging tasks by using deep learning, so that the diagnosis efficiency is greatly improved, the staging accuracy is improved, and a doctor is effectively assisted in making an orthodontic plan.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Tail skeleton and tail action structure of bionic animal

The utility model provides a tail skeleton and a tail action structure of a bionic animal. The tail framework comprises a tail base, a tail joint and a tail end joint which are sequentially arranged and connected through a universal joint, and the universal joint comprises a clamping block and a pin shaft. The tail base comprises a base plate, and a pair of pin shaft clamping plates is arranged on one side of the base plate. The tail joint comprises a joint plate, two sides of the joint plate are respectively provided with a pair of pin shaft clamping plates, and the arrangement directions of the pin shaft clamping plates on the two sides of the joint plate are perpendicular to each other. The tail section comprises a tail section plate, and a pair of pin shaft clamping plates is arranged on one side of the tail section plate. And the pin shaft can be pressed and clamped into the body part of the pin shaft clamping groove from the opening part of the pin shaft clamping groove. The tail control structure comprises a steering engine, a wire coil and a control wire, the control wire sequentially penetrates through control wire through holes of the base plate, the bone joint plate and the tail joint plate, one end of the control wire is wound around the wire coil, and the other end of the control wire is fixed to the tail joint. Rapid installation operation can be achieved without the help of external tools, the animal tail structure is simulated, and flexible deformation swing is achieved.
Owner:SICHUAN KUPAN TECH CO LTD

Bone joint rehabilitation exercise monitoring system and use method

The invention discloses a bone joint rehabilitation exercise monitoring system and a use method, and belongs to the technical field of intelligent medical treatment. The system comprises a joint acceleration acquisition module, a temperature acquisition module, a myoelectricity acquisition module, a wireless transmission module, a patient intelligent terminal, a medical care intelligent terminal and a server. According to the invention, through bidirectional data transmission between the patient intelligent terminal and the medical care intelligent terminal via the server, the patient can know the health state and the rehabilitation plan more clearly, and smooth rehabilitation of bone joints is guaranteed; according to the invention, the medical staff can more efficiently obtain the rehabilitation test result and the rehabilitation plan execution result of the patient, proposes and adjusts a more targeted and personalized rehabilitation plan, greatly saves the doctor-patient communication cost, and is helpful for better and faster rehabilitation of the patient.
Owner:XIEHE HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI & TECH UNIV +1

Application of combined use of hyaluronic acid-bilirubin conjugate and honokiol in preparation of medicines for treating osteoarthritis, honokiol-loaded nanoparticles and bionic nanoparticles for treating bone joints

The invention provides a combined use of a hyaluronic acid-bilirubin conjugate and honokiol in preparation of a medicine for treating osteoarthritis. The invention provides a honokiol-loaded nanoparticle, which is characterized in that a hyaluronic acid-bilirubin conjugate and honokiol are used as raw materials to prepare a nanoparticle HKL-PNPs, and then the nanoparticle HKL-PNPs is modified by a mitochondrial targeting peptide to obtain the honokiol-loaded nanoparticle HKL-MPNPs. The invention also provides a bionic nanoparticle for treating bone joints. The bionic nanoparticle is prepared by wrapping the honokiol-loaded nanoparticle with an engineered cartilage cell membrane (ECM). According to the invention, cartilage cells with high expression of IL-1R2 are obtained through a gene editing method for the first time, and mitochondrial targeted nanoparticle cores loaded with Sirtuin-3 agonists are coated by cell membranes of the cells, so that the bionic nano preparation is obtained and is used for treating OA. The prepared bionic nano preparation not only can neutralize IL-1beta mediated inflammatory reaction, but also can recover Sirtuin-3 mediated mitochondrial function imbalance, so that the result of synergistic treatment of OA is achieved.
Owner:XIANGYA HOSPITAL CENT SOUTH UNIV

A flexible endoscopic robot for minimally invasive disc surgery

The present invention discloses a flexible endoscope robot for minimally invasive intervertebral disc surgery, which relates to the technical field of minimally invasive intervertebral disc surgery. The present invention includes a flexible pipeline, and a negative pressure extraction tube and a flushing tube are arranged inside the flexible pipeline. A support tube is arranged at the insertion end of the negative pressure extraction tube, an inner sliding sleeve is slidably connected inside the support tube, a driving rope reel is rotatably installed inside the inner sliding sleeve, and multiple groups of crushing thin ropes are arranged on the outer side of the driving rope reel. The whole of the present invention adopts a flexible endoscope robot. When the puncture needle reaches the position of the intervertebral foramen, there is no need to gradually expand the outer opening of the intervertebral foramen level by level, and there is no need to resect part of the articular process joint or resect the lamina. After the flexible endoscope robot passes through the puncture needle, it directly bends into the intervertebral foramen, and then cooperates with the use of the clamping jaw and the negative pressure extraction tube to grab and aspirate the intervertebral disc herniation, which can reduce the damage to the bone joints, enhance the stability of the spine, and reduce the recurrence rate of the intervertebral disc.
Owner:SHIJIAZHUANG HONGQUAN BIOTECHNOLOGY CO LTD

Rigid body linkage design method and system based on human body model

The invention relates to the technical field of motion capture, in particular to a rigid body linkage design method and system based on a human body model.The method comprises the steps that three-dimensional key points on a user body are extracted from camera calibration data based on a two-dimensional key point detection algorithm and a triangularization technology; a Python interface of Blender is used, rigid bodies are drawn according to the three-dimensional key points, and each rigid body is defined by two mark points; generating a corresponding coordinate axis for each three-dimensional mark point, and linking the direction of the coordinate axis and the Euler angle of the mark point through a parent class inheritance mechanism to obtain each enhanced three-dimensional mark point; and writing the enhanced three-dimensional mark points into a human body model file, and carrying out real-time linkage of the rigid body and the human body model through binding with skeleton joints. According to the invention, the problems of tedious operation and poor user experience of the traditional mark point motion capture method are effectively solved, the defects of the existing mark point-free technology in rigid body rendering and linkage are overcome, and high-quality mark point-free human body motion capture and visualization are realized.
Owner:CHANGZHOU KUNWEI SENSOR TECH CO LTD

Bone joint multi-disease screening intelligent evaluation method based on deep learning

The invention provides an intelligent evaluation method, system and equipment for screening multiple diseases of bone joints based on deep learning and a computer readable storage medium. The method comprises the following steps: acquiring a bone joint X-ray image and text information of a patient; wherein the bone joint X-ray image comprises a hip joint X-ray image or a knee joint X-ray image; the text information comprises bone joint questionnaire information and historical case information, and the bone joint questionnaire information comprises identity information and bone joint function evaluation information of the patient; inputting the bone joint X-ray image and the text information into a preset deep learning network model, and outputting a bone joint multi-disease disease screening intelligent evaluation result; wherein the deep learning network model is used for respectively extracting image features and text features; and carrying out feature fusion on the image features and the text features. According to the embodiment of the invention, screening and intelligent evaluation of multiple diseases of bone joints can be carried out more accurately.
Owner:LONGWOOD VALLEY MEDICAL TECH CO LTD

Rheumatoid arthritis early-stage intelligent diagnosis method based on multi-modal medical image and deep learning

The invention provides an early-stage intelligent diagnosis method for rheumatoid arthritis based on a multi-modal medical image and deep learning, and the method comprises the steps: carrying out the image cleaning and standardization, automatic bone joint positioning and segmentation, and quality control of a multi-modal original data set, and obtaining a joint slice library; performing intra-modal self-supervised pre-training and cross-modal alignment representation, and then performing focus level detection and quantification to obtain a lesion feature vector of each joint; performing joint diagram construction and quality perception multi-modal fusion to obtain fusion feature representation, and performing weak supervision multi-instance learning and multi-task loss calculation based on the fusion feature representation to obtain an uncalibrated model; and carrying out model calibration and explainable output to obtain an intelligent diagnosis model. According to the method, the diagnosis time point can be advanced to the reversible inflammation stage, interpretable evidence of patient-level decision and joint-level quantification is provided, the engineering feasibility of small samples and multi-center generalization is considered, and the method has high clinical transformation potential.
Owner:THE NAVAL MEDICAL UNIV OF PLA

Stabilizing vertebrae with articulating implants

A bone joint spacer has two endplates which have a bone engaging surface on one side, and ramps extending from an opposite side. A shaft has a threaded end, and another end which has ramp followers which mate with the endplate ramps of both endplates. A collar slides over the threaded end of the shaft, and also has ramp followers which mate with the endplate ramps of both endplates. A nut threads onto the end of the shaft and pushes the collar towards the ramp followers of the shaft. This movement causes the ramp followers to slide the ramp followers of the collar and the shaft against the endplate ramps, pushing the endplates apart. Two of these spacers can be combined by a link plate so that the spacers can be aligned or curved into a U-shape to be inserted into the body and positioned between bony surfaces, respectively.
Owner:GLOBUS MEDICAL INC

Stem cell exosome and application thereof in preparation of medicine for preventing and treating bone and joint diseases of pets

The invention belongs to the technical field of pet bone joint prevention and treatment, and particularly provides a stem cell exosome and application thereof in preparation of medicine for preventing and treating pet bone joint diseases. The RANKL monoclonal antibody 5F16 and the mesenchymal stem cell exosome are combined for the first time to be used for preventing and treating the bone joint diseases of the pets, and test analysis shows that the preparation can effectively reduce the levels of IL-1beta, TNF-alpha and IL-6 in serum of the pets caused by bone joint injuries, inhibit secretion of the IL-1beta, the TNF-alpha and the IL-6, repair the bone joint injuries, improve and promote cartilage tissue repair, prevent and treat the bone joint diseases of the pets and prevent and treat the bone joint diseases of the pets. Good application prospects are realized.
Owner:SHENZHEN MAIJISAIER BIOTECHNOLOGY CO LTD

Method and device for calculating joint rate of acetabular cup bone, computer equipment and storage medium

The invention discloses a method and a device for calculating an acetabular cup bone fitting rate, computer equipment and a storage medium. The method for calculating the acetabular cup bone fitting rate comprises the following steps: acquiring a pelvis model and an acetabular cup model; extracting an effective bone binding surface of the acetabular cup model; performing Boolean operation on the effective bone binding surface and the pelvis model to obtain an intersection set and a difference set of the effective bone binding surface relative to the pelvis model; and based on the intersection and the difference set, calculating to obtain the bone fitting rate of the effective bone fitting surface relative to the pelvis model. According to the method for calculating the joint rate of the acetabular cup bone, an objective, accurate and efficient method is provided for evaluation of the joint rate of the acetabular cup bone through geometric model reconstruction, effective bone joint surface extraction, Boolean operation and quantitative calculation, quantitative calculation of the joint rate of the acetabular cup bone is achieved, and the joint rate of the acetabular cup bone is evaluated. The problems that in a traditional method, doctor experience is relied on, and subjective judgment accuracy is insufficient are solved, and scientificity and accuracy of operation planning are remarkably improved.
Owner:ZHEJIANG LANCET ROBOT CO LTD

Adjustable hip and knee joint rehabilitation device

The utility model discloses an adjustable hip and knee joint rehabilitation device which comprises a base, two fixing seats are symmetrically fixed on the base, a seat plate is fixed between the two fixing seats, two first rotating shafts are symmetrically arranged on the base in a rotating mode, and the other ends of the first rotating shafts are connected to the bottom of the seat plate in a rotating mode. An extension plate is fixed to the first rotating shaft, a column is fixed to the extension plate, and a telescopic assembly is arranged at the top end of the column; the telescopic assembly comprises a positioning plate fixed to the top end of the column body, a telescopic plate is slidably arranged in the positioning plate, a circular ring is fixed to the other side of the telescopic plate, and an adjusting mechanism is arranged in the circular ring. The rehabilitation training device can be adjusted according to the length of the legs of a user, rehabilitation training of the user is facilitated, muscle of the waist and the legs of a patient is helped to be exercised, bone joint degeneration and muscle atrophy are prevented, meanwhile, abduction and adduction rehabilitation exercise can be conducted on the hip and knee joints of the user, and practicability is high.
Owner:HUBEI AEROSPACE HOSPITAL