91 results about "Bones joints" patented technology

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.

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.

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.

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 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 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 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.

The invention relates to the technical field of bone implant testing, and discloses a bone implant anti-fatigue testing device which comprises a closed storage mechanism, a quasi-bending energy supply mechanism installed on the closed storage mechanism and a quasi-bending pressure bearing mechanism installed in the closed storage mechanism. The fatigue detection mechanism is mounted between the quasi-bending energy supply mechanism and the quasi-bending pressure-bearing mechanism; the bone implantation assembly is assembled on the fatigue detection mechanism; and the closed storage mechanism is used for providing permeation of the simulation medium for the fatigue detection mechanism. The two to-be-detected bone plates are respectively installed on the two corresponding assembly blocks, and a sealed storage environment is provided for the fatigue detection mechanism by means of the main shell and the auxiliary shell; the fatigue test can be carried out on the two bone plates by matching the quasi-bending function mechanism driven by the motor with the quasi-bending pressure-bearing mechanism so as to simulate the human body environment where the bone plate assembled on the bone joint is located for testing, and the authenticity of the anti-fatigue test of the selected bone plate can be enhanced.

The application discloses a kind of food relieving bone joint damage evaluation method, it is related to food efficacy evaluation technical field, for solving the problem of single dimension of existing evaluation method, unstable model leads to poor reliability of conclusion.The application builds composite modeling and multi-modal analysis mechanism, first, a stable animal model is established by using chemical injury combined with forced exercise training, a two-stage increasing dosing regimen is set, and behavior dynamic trend data and histology, imaging multi-modal results are collected synchronously.Then, based on the weight assigned to osteoarthritis stage, a weighted composite score is generated, and a perturbation sensitivity index is calculated, a multi-index collaborative influence map is constructed, a key evaluation node is located, a graded evaluation conclusion is generated based on the food action characteristics and efficacy determination threshold, and false positives caused by single index fluctuations are avoided.Finally, a full-cycle closed-loop evaluation process is formed, which improves the scientificity, reproducibility and self-adaptive ability of efficacy determination in complex biological systems.

The toilet stool cleaning device comprises a movable mechanical arm, the movable mechanical arm comprises a bone chain structure and a cleaning head arranged at the front end of the bone chain structure, the bone chain structure comprises a plurality of bone joint structures which are sequentially connected in the length direction of the bone chain structure and can move relatively, and the cleaning head is used for cleaning the toilet stool; and the at least one traction piece penetrates through the multiple joint structures in the length direction of the bone chain structure and can pull the joint structures to move, so that the bone chain structure is subjected to various deformations to drive the cleaning head to move to the cleaning position. The toilet stool cleaning device can realize automatic cleaning of the toilet stool.

The invention discloses a joint fixing device for bone joint surgical nursing, and relates to the technical field of bone joint surgical nursing equipment, the joint fixing device comprises a front fixing protector and a rear fixing protector for fixing a lower limb thigh and a lower limb shank; the two movable angle adjusting devices are symmetrically arranged at the butt joint points of the two sides of the front fixing protective tool and the rear fixing protective tool; the movable angle adjusting device comprises a connecting assembly arranged at the butt joint point of the front fixing protection tool and the rear fixing protection tool, and the front fixing protection tool and the rear fixing protection tool are connected through the connecting assembly and rotate by multiple angles with the connecting point as the axis. An angle adjusting assembly is arranged at the side end of the connecting assembly, and a locking assembly is arranged at the side end of the angle adjusting assembly. According to the leg bending training device, the effects that the legs of the patient can be effectively fixed and cannot move, when bending training is needed, the bending angle range is adjusted in real time according to the training process, and operation is convenient and fast are achieved.

Prosthetic ankle replacements, prostheses, and associated methods of implanting prosthetic ankle and other joint replacements. In one form, a tibia stem has a geometry to facilitate implant installation while providing means to transfer load over a larger surface area through a press-fit, scratch-fit or cortical fit, thus lowering the contact stresses at the tibia-metal implant interface. The design and its implantation procedure also address minimization of misalignment. A talus element presents a partial-hemispherical surface; a tibial element which is to be affixed within the tibia, having an elongated stem part which extends into and within a canal of the tibial inner cortex, an intermediate body part which smoothly widens in radius toward an end which is a base to the tibial element, the base having a concavity formed therein shaped to match the partial-hemispherical surface of the talus element with a plastic cap between the two.

The utility model relates to cold and hot compress alternation equipment field, including the cold and hot compress equipment for bone joint diagnosis and treatment, cold and hot compress equipment one side is equipped with recess, and recess inside one side is equipped with the placement groove for placing traditional chinese medicinal material, is equipped with the baffle in the placement groove, and the baffle number is multiple, through multiple baffle will be placed the groove and divide into multiple placement area, and the inside top end and bottom end of placement groove still are equipped with multiple for the insertion of baffle insertion slot, and the outside of baffle is equipped with the flexible pad, and the both ends of inside bottom of multiple placement area are equipped with the grid plate, and the surface of grid plate is equipped with multiple small -size through -hole, and one side of baffle is equipped with the cleaning subassembly, through above -mentioned structure can be convenient to the different traditional chinese medicinal material and separate the placement, to a certain extent, increased the work efficiency of operator.

This utility model relates to the field of therapeutic belt technology, and more particularly to a therapeutic belt that prevents slippage. It includes a therapeutic belt body, a long strap on one side of the outer wall of the therapeutic belt body, a buckle assembly on the opposite side of the outer wall of the therapeutic belt body, and a Velcro assembly on the opposite side of the outer wall of the therapeutic belt body. The buckle assembly and the Velcro assembly are located on the same side. An airbag assembly is located inside the therapeutic belt body, and a telescopic strap is located in the middle of the outer wall of the therapeutic belt. This device can treat and fix bone and joint components causing Kashin-Beck disease, providing support and fixation to the affected area and preventing the therapeutic belt from slipping. The therapeutic belt does not affect the patient's normal daily activities, and its tightness can be adjusted as needed, making the therapeutic belt comfortable to wear. This makes the therapeutic belt practical for treating bone and joint areas, and it can be used on multiple sites such as the elbow and knee.

The invention discloses a bat-fin type intelligent motion control device for a cylindrical FPSO, and belongs to the technical field of design and construction of ocean platforms. Comprising a cylindrical FPSO main body, and a plurality of fin bone connectors are arranged at the lower end of the cylindrical FPSO main body in a surrounding mode; the outer ends of the fin bone joints are connected with fin bones, the number of the fin bones is the same as that of the fin bone joints, and each fin bone comprises n fin bone joints which are sequentially connected end to end; the annular bat fin is arranged on the outer side of the cylindrical FPSO body and fixed to the upper portion of the fin bone. According to the invention, the vertical additional mass is increased through the annular bat fin so as to enhance heaving damping, six-degree-of-freedom anti-interference force is provided by means of the active control capability of the fin bone and the interaction of the bat fin and a water body, and the full-degree-of-freedom motion cooperative control of the FPSO is realized; a modular detachable design is adopted, rapid disassembly and assembly in a full-period operation scene are supported, and the device is suitable for cylindrical FPSO motion control of a small oil field and a marginal oil field.

The invention discloses an osteochondral integrated sponge scaffold as well as a preparation method and application thereof, and belongs to the field of osteochondral repair materials. The preparation method comprises the following steps: (1) mixing a collagen dispersion liquid and a polyvinyl alcohol solution, then adding a phosphate buffer solution and beta-tricalcium phosphate, and then obtaining lower-layer hydrogel through a pouring method; (2) mixing the collagen dispersion liquid with a polyvinyl alcohol solution, then adding a phosphate buffer solution, and then obtaining upper-layer hydrogel through a pouring method; and (3) pouring the upper-layer hydrogel on the lower-layer hydrogel, constructing a sponge scaffold through a multi-time freeze-thawing method and a freeze-drying method, and finally soaking the sponge scaffold in thrombin to obtain the osteochondral integrated sponge scaffold. The scaffold can adsorb platelet-rich plasma, has certain adhesion capacity, can realize in-situ fixation and biological integration at a defect part, can well recover physical and biological dysfunctions of bone joints and osteochondral bones, and provides a potential application idea for clinical treatment of osteochondral defects.

The utility model discloses a snake bone joint, a flexible arm, an instrument rod and a surgical robotic.The snake bone joint comprises a first snake bone component and a second snake bone component, the first snake bone component rotates relative to a first rotating shaft, the second snake bone component rotates relative to a second rotating shaft, and the first rotating shaft and the second rotating shaft are parallel and both located in a first plane; a first limiting part is arranged on the first snake bone component, and a second limiting part matched with the first limiting part is arranged on the second snake bone component; the first limiting part is provided with a first side face located on one side of the first plane and a second side face located on the other side of the first plane. The second limiting part is provided with a third side face located on one side of the first plane and matched with the first side face and a fourth side face located on the other side of the first plane and matched with the second side face. The contour line of the first side surface and the contour line of the third side surface are conjugate curves; the contour line of the second side face and the contour line of the fourth side face are conjugate curves. According to the invention, the snake bone joint can realize symmetrical rotation.

The utility model discloses a resistance adjusting device for bone joint rehabilitation training, which comprises a support base, a lifting component and a training execution component, the training execution component comprises a mounting base plate, a main upright post, at least two training pressure arms and resistance generators, and the number of the resistance generators corresponds to that of the training pressure arms; the near end of each training pressing arm is hinged to the main stand column, the far end of each training pressing arm is fixedly provided with a lower pedal, and each resistance generator is arranged between one training pressing arm and the installation base plate. The resistance generators are configured to provide different preset resistance values. The utility model has the following advantages and effects: different preset resistance values are respectively provided through different training pressing arms and corresponding resistance generators, and the height-adjustable lifting assembly is matched, so that optional personalized bone joint rehabilitation training is provided for a user.

The invention relates to the technical field of orthopedic surgical instruments, in particular to a bone connecting and fixing assembly for fixing a small-size fracture block. Firstly, a guide pipe of a guide fixing piece with a connecting part is aligned with a bone block, then the bone block and a connecting bone are drilled through the guide pipe, and a first drilled hole is obtained; the bone needle slightly retreats, but most of the bone needle is left in the first drill hole, so that the bone block is connected to the connecting bone; the guide pipe is lifted to form a certain space with the fracture block, and a bone needle surrounding the space between the bone block and the guide pipe is inserted into the bending auxiliary part; bending the bone needle by using a guide pipe to be parallel to the connecting bone, withdrawing the bending auxiliary piece, continuously inserting or knocking the bone needle into the connecting bone through the bone block to enable the guide pipe to be close to and in contact with the connecting bone, drilling the connecting bone through the connecting part to obtain a second drill hole, penetrating a connecting piece through the connecting part and embedding the connecting piece into the second drill hole to obtain a second drill hole; the whole guide fixing piece and the bone needle are stably fixed to the connecting bone, and stable fixation of a small-size fracture block is achieved.

The application discloses a kind of bone joint movement rehabilitation training devices, relate to medical rehabilitation equipment field, including fixed frame, the bottom of fixed frame is fixedly connected with first support frame, the inside of first support frame is fixedly connected with two slide rails, the top of slide rail is provided with moving assembly, moving assembly includes moving support, moving support is slidably connected in the top of slide rail, the top of moving support is fixedly connected with fixed plate, one side of moving support is fixedly connected with fixed block, the inside of fixed block is fixedly connected with first torsional spring rotating rod.The application is provided with moving assembly, using the design of moving assembly, moving support and slide rail, under the action of motor, make threaded rod stress to rotate, drive moving support to move along the outside of slide rail, and hip joint or lower limb bone joint follows moving support and moves, it is helpful to hip joint or lower limb bone joint to carry out rehabilitation exercise under the condition that not using self power.

The application relates to the field of bone joint reduction, and particularly discloses an orthosis for bone joint reduction and fixation, which solves the problems of single function of existing bone joint fixation orthosis, especially the fixation orthosis for knee joints, and the problems of being not conducive to the rehabilitation of the joints of patients and the post-exercise recovery, and the orthosis comprises a base, a limiting box, an opening, a sliding frame, a clamping seat, a fixing clamping plate, an adjusting assembly, a rotating shaft, an upper guard plate, a side plate, a sliding frame, a pressing seat, a rotating plate I, a sliding seat, a cam, and a driving assembly, the outer side of the limiting box is slidably connected with a pulley, a linkage assembly is arranged in the limiting box, and the linkage assembly is used for driving the pulley to slide on the outer side of the limiting box. The device can stably position and fix the knee joints of patients and perform orthosis, does not cause relatively tight clamping to the legs of the patients, is conducive to blood circulation of the legs of the patients, can also assist in pressing and massaging, is conducive to stimulating the muscles of the patients to keep active, and reduces the subsequent rehabilitation and exercise period.

The invention relates to a biological lubricant, in particular to a bone joint biological lubricant as well as a preparation method and application thereof. The bone joint biological lubricant comprises a component A and a component B, wherein the component A comprises the following raw materials in parts by volume: 4-6 parts of a 4% (w / v) sodium alginate solution, 0.3-0.5 part of a 1M calcium nitrate tetrahydrate solution, 0.4-0.6 part of a 2M beta-sodium glycerophosphate solution and 4-4.5 parts of normal saline; wherein the component B comprises the following raw materials in parts by volume: 3-5 parts of a 1M sodium citrate solution; after an ice-cold component A solution is injected into an articular cavity through an injector, and the solution enters an in-vivo environment at 37 DEG C, the temperature triggers Ca to be slowly released from a complex, the released Ca begins to be crosslinked with a G unit on a sodium alginate molecular chain, and finally stable hydrogel is formed in the articular cavity and has a good supporting effect when a patient is static; when the patient walks, a lubricating effect is achieved; when the gel needs to be removed, the component B can be injected into the gel part to convert the gel into a liquid state.

The application discloses a SOD-containing patch for protecting bone joints and cartilage tissue and belongs to the fields of biological medicine and medical devices. The patch is in the form of a polymer microneedle, comprising a base layer and a needle tip layer; the needle tip layer comprises microneedles arranged in an array on the base layer, and the microneedles are loaded with SOD; and the base material of the microneedles is a high-molecular compound containing sodium hyaluronate and chondroitin sulfate. The patch has good anti-inflammatory, repairing and pain-relieving effects, all active ingredients in the patch are substances contained in the human body, the safety is extremely good, and the SOD is wrapped with sodium hyaluronate-chondroitin sulfate composite hydrogel, so that the SOD can be prevented from softening due to moisture absorption, thereby guaranteeing the treatment effect.

The invention relates to a bone joint rotation center parameter acquisition method and device and computer equipment. The estimation accuracy of bone rotation center parameters can be improved. The method comprises the following steps: determining a rotational motion projection plane of a bone joint before starting to rotate, and determining a guide rotation track in the rotational motion projection plane according to the position of a bone ball head in the bone joint in the rotational motion projection plane; an interactive interface is displayed, and the guide rotation track is displayed on the interactive interface so as to prompt to rotate the bone joint with the bone ball head as the center according to the guide rotation track; and under the condition that the actual rotation track of the bone joint is matched with the guide rotation track, determining a rotation center parameter of the bone ball head according to the actual rotation track.