185 results about "Bones joints" patented technology

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

The utility model discloses a bone joint surgical nursing support which comprises a support body, a plurality of control assemblies are connected to one side wall of the support body in a threaded mode, a massage assembly is arranged in each control assembly and comprises a sliding column and a massage plate, the sliding column is connected to one side wall of the massage plate in a threaded mode, and the massage plate is connected with the sliding column. The sliding column and the massage plate are hollow and are communicated with each other, a plurality of groups of arc-shaped grooves are formed in the inner wall of the fixing support, first threaded holes are formed in the positions, located on one side wall of each group of arc-shaped grooves, of the fixing support, and first external threads matched with the first threaded holes are integrally formed at one end of the fixing ring. According to the bone joint surgical nursing support, the detachable massage assembly is additionally arranged on the portion, with the most muscles, of the support, and meanwhile the detachable medicine spraying assembly is additionally arranged in the massage assembly, so that a patient can complete massage on the muscles and medicine spraying on the skin without detaching the nursing support.

A method for measuring a relative movement between bones and a method for acquiring a joint rotation axis of bones are provided, which can effectively improve rotational stability of a prosthesis of knee arthroplasty, thereby improving surgical outcomes. A population average bone joint most stable axis (a-MSA) is acquired through the method, so that the design of a joint prosthesis can be improved and a reference of a population average position can be provided for intraoperative placement of a prosthesis. An individual bone joint MSA (i-MSA) of a patient is acquired through the method before surgery, so that individual position information can be provided for intraoperative placement of a prosthesis, thereby further improving rotational stability of a surgical prosthesis.

The invention discloses a manufacturing method of a snake bone structure and a flexible snake bone structure, and the method comprises the steps: fixing a hollow tube with a preset length, and determining the punching position of the end face of the tube wall of the hollow tube; punching is conducted from one side of the end face of the pipe wall in the direction parallel to the axis of the hollow pipe, and a pre-punched pipe with a rope hole is obtained; wherein the rope hole is located in the pipe wall of the hollow pipe; laser cutting is conducted on the pipe wall of the pre-trepanning pipe to obtain a plurality of joint units which can not be separated and combined in sequence, and redundant materials which are cut off are removed, so that the adjacent joint units can move relatively. Thus, the rope hole is formed in the pipe wall of the hollow pipe, the inner wall of the rope hole is smoother, abrasion to the traction rope can be reduced, and the service life of the medical instrument adopting the snake bone structure is further prolonged.

The present invention relates to technical field of 2D-3D registration, it proposes a 2D-3D registration method based on joint localization, comprising: S1: obtaining a coordinate transformation matrix between the biplane X-ray system and the joint localization device; S2: capturing anteroposterior / lateral X-ray images by using the biplane X-ray system, and recording a first spatial position and a first gravity direction of the joint center using the joint localization device; S3: establishing a coordinate system with the joint center of the 3D bone joint model as the coordinate origin, and determining a second gravity direction; converting the first spatial position and the first gravity direction recorded by the joint localization device into the coordinate system of the biplane X-ray system via the coordinate transformation relationship; S4: matching the coordinate origin and the second gravity direction of the 3D bone joint model with the first spatial position and the first gravity direction to complete coarse 2D-3D registration; S5: taking the result of the coarse registration as an initial value for fine registration based on iterative optimization to complete fine 2D-3D registration. This method improves the convergence, accuracy, and efficiency of the registration.

The utility model belongs to the technical field of endoscopes, and particularly relates to a super-long bent angle structure of an endoscope. Comprising a snake bone formed by sequentially hinging a plurality of snake bone joints; the camera end part is arranged at the far end of the snake bone; the insertion tube is arranged at the near end of the snake bone; the traction line is circumferentially arranged in the snake bone and penetrates through a traction hole in the inner wall of the snake bone, one end of the traction line is connected with one snake bone joint located at the far end, and the other end of the traction line is connected with a traction driving mechanism; wherein each pull wire is formed by connecting two steel wire ropes with different rigidities end to end. According to the snake bone joint, the two steel wire ropes with different rigidities are connected end to end to form the pull wire, and the rigidity can be reduced by selecting the thinner steel wire rope, so that the bending angle of the snake bone joint is increased.

The utility model relates to the technical field of medical supplies, and discloses a snake bone structure and an endoscope with the snake bone structure, the snake bone structure comprises a tail end joint and a plurality of snake bone joints which are hinged in sequence from top to bottom, a front notch is formed between the front sides of every two vertically adjacent snake bone joints, a rear notch is formed between the rear sides of every two vertically adjacent snake bone joints, and the tail end joint is connected with the tail end joint. The two vertically adjacent snake joints can swing in the left-right axial direction; the tail end joint is annular, the upper end of the tail end joint is hinged to the lowest snake joint, a big-end-down stepped hole is formed in the tail end joint, the lower end of the stepped hole is used for installation of an insertion pipe, and a soldering tin hole communicated with the lower end of the stepped hole is formed in the lower end of the tail end joint. The tail end joint and the insertion pipe can be directly welded together through soldering tin, and redundant soldering tin between the snake joint and the insertion pipe can be filled in the soldering tin hole, so that the connection firmness between the snake joint and the insertion pipe is ensured, and the risk of falling of the insertion pipe is reduced.

The present invention discloses an insertion part and an endoscope, and relates to the technical field of medical devices. The insertion part includes: an active bending section, a passive bending section, a first limiting structure, a second sleeve and a traction rope. By setting the first limiting structure in the passive bending section, a limiting channel is formed inside the first limiting structure, and the second sleeve is set in the limiting channel. The second sleeve can be movably set along the axial direction of the limiting channel in the limiting channel, and can selectively extend into the wire hole of the serpentine segment in the active bending section. The traction rope is set in the second sleeve and can be movable along the axial direction of the second sleeve. The traction rope is also connected to the serpentine segment at the distal end. The traction rope can be used to pull the active bending section to bend, and the second sleeve can be used to change the bending radius of the active bending section. Therefore, the insertion part provided in the embodiment of the present application can realize the adjustable bending radius of the active bending section.

The utility model discloses an endoscope snake bone structure and a snake bone chain, the snake bone structure comprises snake bone joints, the two end faces of each snake bone joint are respectively provided with a son rotating part and a mother rotating part, the center lines of the end faces of the snake bone joints, the son rotating parts and the mother rotating parts incline towards the same direction, and the son rotating parts and the mother rotating parts of the adjacent snake bone joints are connected in a sleeved mode to form rotating joints. By arranging the inclined end faces and the inclined connecting structures, when the front-end snake joint rotates relative to the rear-end snake joint, the overlapping length of the connecting structures between the front-end snake joint and the rear-end snake joint is increased, the snake bone stability is improved, the snake bone reliability is improved, and the occupied internal space of the snake bone chain is reduced.

This invention relates to the field of advanced medical equipment and instrument manufacturing, and more particularly to a multi-spectral phase-modulated joint magnetic therapy system, comprising a main control unit, a spectrum construction unit, a phase unrolling unit, a migration scheduling unit, a magnetic drive unit, and a magnetic stimulation probe. The main control unit generates multi-frequency stimulation sequence parameters; the spectrum construction unit partitions the multi-frequency stimulation signal; the phase unrolling unit applies progressive phase modulation to each spectrum region; the migration scheduling unit performs temporal reconstruction of each spectrum region and forms a migration sequence; and the magnetic drive unit drives the magnetic stimulation probe to output a corresponding magnetic field structure according to the migration sequence. This invention, by constructing a migration stimulation mode based on spectrum partitioning and phase unrolling, can change the effect structure of multi-frequency magnetic fields within human tissue, reduce the influence of tissue differences on phase relationships, and improve the stability of stimulation distribution and treatment consistency among different individuals.

The present invention relates to the field of medical computer-aided technology, and specifically to a bone joint replacement surgery auxiliary system. The present invention screens effective X-ray images; performs three-dimensional reconstruction on the effective X-ray images to obtain a three-dimensional model of the bone joint, obtains an abnormality index based on the position distribution difference and quantity of coordinate points in each spatial area of ​​the three-dimensional model of the bone joint, and selects a spatial abnormal area based on the abnormality index; then, obtains a construction misalignment rate based on the unevenness and abnormality index of the spatial abnormal area, and the degree of separation between the spatial abnormal area and its adjacent area, and adjusts the three-dimensional model of the bone joint in combination with the position distribution difference of the coordinate points in the spatial abnormal area, and assists bone joint replacement surgery based on the adjusted model. The present invention only adjusts the spatial abnormal area caused by the construction error in the three-dimensional reconstruction process, reduces the error between the adjusted bone joint model and the real bone joint, and effectively improves the auxiliary effect on bone joint replacement surgery.

The invention discloses an injectable hydrogel pharmaceutical composition for an articular cavity as well as a preparation method and application of the injectable hydrogel pharmaceutical composition. The hydrogel pharmaceutical composition comprises gel particles and a medicine loaded in the gel particles, the gel particles are formed by cross-linking hyaluronic acid or salt thereof and silk fibroin through a cross-linking agent; the medicine comprises an anti-inflammatory drug and / or a growth factor. The preparation method is simple, good in safety and beneficial to industrial production. The uniform porous structure of the hydrogel is beneficial to adhesion and growth of bone cells, meanwhile, the double-load hydrogel loaded with the anti-inflammatory drug and the growth factor has good viscoelasticity and injectability and has the effects of synergistically resisting inflammation and promoting cartilage repair, and bone joint related diseases are treated in a bone joint intracavity injection mode; the drug residence time can be prolonged, and the bioavailability is improved.

The utility model provides a reference frame anti-rotation assembly for a spine, which relates to the technical field of medical instruments and comprises a main body, at least two limiting holes arranged along a straight line are formed in the surface of the main body, and the limiting holes penetrate through the main body and are communicated with a movable cavity; the kirschner wire penetrates through the limiting hole; the movable block is provided with a limiting structure which drives the movable block to slide along the movable cavity. When the movable block slides in the movable cavity, one end face of the movable block gradually gets close to the limiting hole and tends to coincide with the limiting hole. When the movable block and the limiting hole partially coincide, the kirschner wire abuts against the movable block, and the problems that the spine is composed of a plurality of joints, the joints can move mutually, the arrangement stability of the reference frame is affected, errors are generated, and meanwhile when a navigation system is used for the spine, the reference frame needs to be placed over the spine of a person, and the operation is inconvenient are solved. Due to the fact that the distance between the multiple joints of the spine is small, the operation area is easily shielded by arranging a reference frame, and the operation view field is affected.

The utility model discloses a snake bone joint, a flexible joint assembly, a surgical operation arm and a surgical robot. The problem that uncertain dislocation sliding occurs between snake bone components when the snake bone joint is bent can be solved. Each snake bone joint comprises two snake bone components, a supporting structure and at least two traction soft ropes, each snake bone component can rotate based on a respective pivot, the supporting structure is arranged between the two snake bone components, the two pivots in the same snake bone joint are parallel, and the distance between the two pivots is constant; the traction soft ropes are connected between the two snake bone components in a pre-tightening state, and the projections of at least one pair of traction soft ropes in the extension direction of the pivot are in a crossed symmetrical state; each snake bone component comprises a limiting cambered surface used for tensioning the corresponding traction soft rope, the axis of each limiting cambered surface is parallel to or coincides with the pivot, the radiuses of the limiting cambered surfaces tightly attached to the same pair of traction soft ropes are equal, and the starting ends of the limiting cambered surfaces are fixed to the ends of the traction soft ropes. Therefore, the snake bone joint has the advantage of improving the bending precision and load deformation resistance of the snake bone joint.

The invention relates to the technical field of medical image reconstruction, and discloses a bone joint three-dimensional reconstruction method and system based on deep learning. The method comprises the steps that a bone joint tomography image set is input, and multi-scale density slices and edge contour information are analyzed; deducing the two types of information space structures, and establishing an initial space field containing a bone tissue main body frame and a joint lacuna form; separating articular surface structure details and bone surface texture veins from the initial field; generating a network by using the three-dimensional structure which is obtained through separation and input and is trained to obtain a grid body with anatomical topological connection; and performing curved surface iterative smoothing based on biomechanical characteristics on the grid body, and outputting a final bone joint three-dimensional model.