126 results about "Osteon structure" patented technology

The invention relates to the technical field of osteoporosis diagnosis, and discloses an osteoporosis diagnosis method based on image recognition. The method comprises the following steps: acquiring bone density image data of a target object and bone structure image data of a target area based on medical imaging equipment, and determining a bone trabecula distribution condition of the target area according to the bone structure image data; constructing a three-dimensional bone mineral density model of the target object according to the bone mineral density image data, and determining an image analysis strategy by combining the three-dimensional bone mineral density model and the bone trabecula distribution condition; and an image analysis module acquires bone structure feature data of the target area according to the strategy, and identifies the bone density grade and the osteoporosis degree of the target area according to the feature data to obtain diagnosis data. According to the method, related data of the bone mineral density and the bone structure are integrated, comprehensive analysis is carried out in combination with the image recognition technology, an efficient and reliable new mode is provided for clinical diagnosis, the accuracy and objectivity of osteoporosis diagnosis are improved, and misdiagnosis and missed diagnosis are reduced.

Methods are described for conducting minimally invasive medical interventions utilizing instruments and assemblies thereof to stabilize and / or fixate a dysfunctional sacroiliac (SI) joint. In one embodiment, a defect creation assembly is advanced from a posterior approach into the SI joint and configured to create pilot SI joint opening; portions of which being disposed in the sacrum and ilium bone structures. After the pilot SI joint opening is created, a prosthesis is press-fit into the pilot SI joint opening, wherein the pilot SI joint opening transitions to a larger post-prosthesis insertion SI joint opening and the prosthesis is securely engaged to the sacrum and ilium bone structures.

The invention relates to the technical field of model construction, in particular to a method for creating an image recognition model based on clinical disease data integration. The method comprises the following steps: acquiring a medical clinical orthopedic image set; the bone density and the bone form of the medical clinical orthopedic image set are extracted, bone structure division is carried out on the medical clinical orthopedic image set, bone structure division images are generated, and the bone structure division images comprise large bone structure images and small bone structure images; analyzing the bone layer thickness of the big bone structure image and performing physical layer thickness compensation reconstruction on the big bone structure image to generate big bone middle virtual slice data; and performing detail guide reconstruction on the small bone structure image to generate small bone fracture texture reconstruction data. According to the invention, through image resolution enhancement, multi-modal data integration, motion simulation and optimization model training, the accuracy of skeleton image dynamic identification is improved.

The invention relates to the technical field of medical implants, in particular to a 4D printing-based porous Niti alloy bionic bone gradient structure construction method, which comprises the steps of patient bone data acquisition, bionic gradient model design, NiTi powder preparation, 4D printing, thermal treatment activation of memory effect, surface functionalization treatment and mechanical / biological performance test. The method is characterized by comprising the following preparation steps: accurately acquiring bone structure data through CT / MRI, combining Mimics pretreatment and UG / NX modeling, designing aperture and porosity for differentiation of cortical bone (low porosity of 30%-40%) and cancellous bone (high porosity of 50%-70%), simulating typical load working conditions through ANSYS, enabling the elastic modulus (3-15 GPa) and compressive strength (80-200 MPa) to be close to natural bone, and finally obtaining the bone structure data through the CT / MRI, the pore diameter and porosity of the cortical bone (low porosity of 30%-40%) and the porosity of the cancellous bone (high porosity of 50%-70%). According to the design, the elastic modulus difference between the implant and the host bone is remarkably reduced, the bone resorption problem caused by stress shielding is avoided, meanwhile, continuous porosity transition is achieved through the power gradual change technology, and the structural stability under the complex load is improved.

The invention discloses an orthopedic surgery navigation drilling and implant placement intention real-time optimization method based on multi-modal perception, and relates to the technical field of computer-aided surgery, man-machine interaction and intelligent medical equipment. Multi-modal signals such as electroencephalogram, eye movement and myoelectricity of a doctor are collected in real time through XR glasses and an intelligent surgical drill; and inputting the pre-trained micro-world model to generate a current intention vector and predict a future bone structure trajectory. The intention level is judged by calculating the energy distance between the intention and the master template and an emotional value function: when the intention meets the master level condition, the system automatically generates an XR green optimal path and assists in operation; and when the intention is identified as the risk intention, triggering the skykeeper system to lock the equipment and send out an alarm. The system supports a data federation learning evolutionary model, and immediately destroys an original multi-mode signal after encoding to guarantee data security. According to the invention, the real-time monitoring, evaluation and guidance of the operation intention are realized, and the accuracy and safety of the operation are improved.

The utility model provides a novel shapewear which comprises a shapewear body, cloth is sewn on the back of the shapewear body, and a strip-shaped cavity is arranged between the cloth and the shapewear body. The device further comprises supporting bone structures, the supporting bone structures are inserted into the strip-shaped cavities, each supporting bone structure comprises a cloth bag and fish scale bones made of memory alloy, a plurality of fish scale bone cavities are formed in each cloth bag, and the supporting bone structures are inserted into the fish scale bone cavities. The fish scale bone made of memory alloy has a shape memory function, the supporting position and angle can be flexibly adjusted according to the sitting posture habit, the activity requirement and the physical condition of a user, and personalized supporting experience is provided. The supporting bone structures are inserted into the strip-shaped cavities to be matched with the fish scale bone characteristics, the back curve is better attached, uniform supporting force is provided, local pressure is prevented from being too large, and the comfort degree is improved. Reasonable supporting can help a user to keep a correct sitting posture, the problems of poor postures such as scoliosis and humpback are prevented, and body health is promoted.

The invention discloses a pelvic cavity tissue implantation teaching model body and a teaching evaluation method, and the model body comprises a pelvic cavity shell model body which is used for simulating an external anatomical structure of a human pelvic cavity and can be detached into two parts which are in bilateral symmetry, and the interiors of the two parts respectively comprise pelvic bone structures; the target region endangered organ die body is arranged in a space formed by folding the left part and the right part of the pelvic cavity shell die body and is used for simulating a real target region tissue and a surrounding organ at risk, and two parallel gaps which are spaced at a fixed distance are formed in the die body; the coordinate paper acquisition system comprises two pieces of coordinate paper which are arranged in parallel, and the two pieces of coordinate paper are respectively arranged in two parallel gaps on the target region endangered organ mold body and are used for recording the spatial position information of the implanting needle; and the connecting handle is detachably connected with the target region endangering organ die body through a first standardized interface, and a whole formed by connecting the target region endangering organ die body and the connecting handle is detachably connected with the left part and the right part of the pelvic cavity shell die body through a second standardized interface.

The application discloses a bone age prediction method and system based on a multi-modal large model and a computer readable storage medium, belongs to the technical field of artificial intelligence and medical image processing, and comprises the following steps: fusing a left-hand DR image and clinical indexes through an end-to-end mode, constructing a multi-modal large model fine-tuned according to a bone age field, and outputting image-observed description of each bone in a left-hand wrist and bone-by-bone structured results of maturity levels; calculating a total bone age value through a scoring rule of a bone age evaluation standard, and generating and outputting a bone age evaluation report containing the bone-by-bone image-observed description, the maturity levels and the total bone age value. The application solves the problems of insufficient utilization of clinical indexes, heavy report writing burden, easy hallucination of model output and insufficient compliance of bone age calculation in the prior art, improves the accuracy of bone age prediction, clinical compliance and evaluation efficiency, and can be widely applied to hospitals, primary medical institutions and children growth and development screening scenes.

This invention provides a pelvic floor support structure model and modeling method based on three-dimensional data to assist in judging the condition of pelvic floor ligaments and to perform physical simulation. To solve the above-mentioned technical problems, this invention provides the following technical solution, including: a bone structure, which includes the hip bone and the coccyx, which together form a pelvic support structure, with the inner side of the hip bone and the coccyx forming the pelvic space; an organ structure, which includes the following model structures, including models of the uterus, bladder, vagina, and rectum located in the pelvic space; and a ligament structure, which includes the cardinal uterine ligament connecting the uterus to the hip bone, the uterosacral ligament connecting the uterus to the coccyx, and the round uterine ligament, which connects one end to the upper end of the uterus and extends obliquely upward at the other end.

The present invention provides an intramedullary nail aimer and a surgical instrument box containing the same, belonging to the technical field of surgical instruments. The intramedullary nail aimer comprises a proximal aiming module, an adjustment module, and a distal aiming module connected in sequence; the adjustment module comprises a first adjustment block and a second adjustment block; the proximal end of the first adjustment block is connected to the proximal aiming module, the distal end of the first adjustment block is rotatably connected to the proximal end of the second adjustment block, and the distal end of the second adjustment block is connected to the distal aiming module. The intramedullary nail aimer has a simple structure and is easy to use. It can rotate when aiming at the distal end of the intramedullary nail, and can meet the needs of aiming at various angles of intramedullary nail holes. In addition, the intramedullary nail aimer has a stable structure and is detachable, and can be connected to the distal aiming module according to surgical needs. The rotation angle and vertical position of the intramedullary nail can be adjusted to meet the various needs of people of different heights, people with different bone structure curvature, etc.

The utility model provides a snake bone tube and endoscope belongs to snake bone structure technical field, including: at least two snake bone unit, its both ends respectively form insertion end and installation end, the insertion end is provided with the rotatory projection, the installation end is provided with the rotatory recess, the rotatory projection is matched with the rotatory recess, the rotatory projection is equipped with the rotatory recess, the rotatory recess is equipped with the rotatory projection, the rotatory recess is equipped with the rotatory projection, and the rotatory projection is equipped with the rotatory recess. In every two adjacent snake bone units, the rotating protrusion of one snake bone unit is embedded into the rotating recess of the other snake bone unit so that the two snake bone units can rotate relatively, and when the snake bone pipe is pulled out of the human body, the pulling-out direction extends from the insertion end to the installation end. The snake bone pulling-out device has the advantages that even if the rotating protrusions are broken and the spines rise upwards, the snake bone can be pulled out of the body smoothly, and fragments of the raised protrusions can be smoothened in the forward direction instead of upwarping in the reverse direction and stabbing the human body.

The application provides a bone crushing device, which comprises a shell, a first bone crushing structure and a second bone crushing structure, the shell is internally provided with a bone crushing channel, the bone crushing channel has an inlet end and an outlet end, the first bone crushing structure is arranged on the side wall of the bone crushing channel, the first bone crushing structure has a plurality of first hinge teeth, and each first hinge tooth is arranged towards the inner side of the bone crushing channel; the second bone crushing structure is rotatably connected to the side wall of the bone crushing channel, the second bone crushing structure has a plurality of second hinge teeth, and the second hinge teeth and the first hinge teeth are alternately arranged; when the second bone crushing structure rotates, the second hinge teeth can form a shearing action with the first hinge teeth. The bone crushing device of the application drives the second hinge teeth to form shearing with the first hinge teeth through the rotation of the second bone crushing structure, so as to refine the bone material to be crushed, thereby obtaining bone graft particles meeting the requirements of reimplantation. Compared with the traditional bone rongeur, the bone crushing device of the application is simpler to operate, more convenient to use, faster to obtain bone graft particles and higher in efficiency.

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 automatic folding umbrella rib structure which comprises at least one section of umbrella rib, an umbrella branch rib, a loop, a main material, a ball rib, an umbrella folding spring and a connecting rib, the umbrella branch rib is connected to the middle of the umbrella rib in a rotating mode, the inner connector of the umbrella rib is connected with a lower nest, the outer end of the umbrella rib is connected with the main material, the inner end of the umbrella branch rib is connected with an upper nest, and the outer end of the umbrella branch rib is connected with one end of the connecting rib. One end of the connecting rib is connected with the main material, the other end of the connecting rib is connected with the main material, the return wire is connected with the main material and the connecting rib, the umbrella folding spring is connected with the umbrella rib and the connecting rib, a groove is formed in the side, facing the umbrella folding spring, of the umbrella rib, and a first groove is formed in the side, facing the umbrella folding spring, of the main material. The utility model provides the umbrella rib structure of the automatic folding umbrella, which has a better folding effect after the umbrella is folded.

The present disclosure relates to a flat-bottom drill for osteochondral transplantation, comprising a drill bit body and a drill handle, at least two cutting edges are arranged on the side wall of the drill bit body and extend to the end of the drill bit body by the side wall of the drill bit body; and the opposite surfaces of the cutting edges are configured to extend in a straight line direction, the bottoms of all the cutting edges are located in the same plane, the drill handle is coaxially arranged with the drill bit body and is configured to be fixedly connected with the drill bit body. The flat-bottom drill for osteochondral transplantation of the present disclosure, by arranging at least two cutting edges on the side wall of the drill bit body and locating the bottoms of all the cutting edges in the same plane, the local stress is dispersed when the drill bit body drills holes on the surface of the bone, the micro-cracks on the surface of the bone are avoided, and the integrity and stability of the bone structure are ensured.

The utility model relates to a snake bone structure and assembly. The snake bone structure comprises a barrel, a connecting part and a driving part. When the snake bone structure and the snake bone assembly are actually used, the first avoiding through hole and the second avoiding through hole which are located on the same side of the axis of the cylinder body can be close to each other, so that the cylinder body is in a bent state, and the first avoiding through hole and the second avoiding through hole which are located on the same side of the axis of the cylinder body are staggered in the radial direction of the cylinder body; when the side walls, close to each other, of the first avoiding through hole and the second avoiding through hole abut against each other, the bending deformation of the position of the barrel body reaches the maximum, and therefore a limiting structure can be generated only through the opening shape of the barrel body, excessive bending of the barrel body is prevented, and deformation and fracture of the structure of the weak position of the barrel body are avoided.

The invention relates to the technical field of health monitoring systems, and provides a fracture prediction system combining a multi-dimensional image technology and artificial intelligence, which comprises an image acquisition terminal, a data processing terminal, a prediction analysis terminal and a user feedback terminal, the image acquisition terminal is used for acquiring multi-dimensional image data of a predicted object; the data processing terminal is used for performing preprocessing and feature extraction on the multi-dimensional image data to generate bone density information, bone structure integrity information and crack detection information; the prediction analysis terminal is used for performing prediction analysis on the prediction object according to the bone density information, the bone structure integrity information and the crack detection information and outputting prediction analysis information; and the user feedback terminal is used for providing a doctor-patient interaction interface and displaying bone density information, bone structure integrity information, crack detection information and prediction analysis information. The method has the effect of improving the accuracy and reliability of fracture risk prediction.

Disclosed are system and methods that use at least one non-threaded anchor and an implant with at least one aperture to join boney structures, where the interaction of the head of the anchor with the implant aperture causes the anchor to move transversely with respect to an initial trajectory. This movement causes compression or distraction of the boney structures which are coupled to the anchors.

The application discloses a preparation method of an interpenetrating phase ceramic dental material and belongs to the technical field of biomedical materials. The application is based on the porous foam structure and cavity tissue of bird skeletons for biomimetic design, two kinds of biomimetic bird bone structures combining the characteristics of annular hyoid structures and cavity tissues are established, and according to the bird skull cooperative damping mechanism, a mortise and tenon structure with the characteristics of cooperative bearing and buffering is constructed, the structure has more excellent mechanical bearing performance and deformation stability compared with a traditional structure. The zirconium oxide-hydrogel interpenetrating phase material prepared by a photo-crosslinking method, the composite design of the soft phase and the hard phase material not only significantly improves the energy absorption characteristics of the material, but also effectively improves the fracture toughness of the dental material. On this basis, a functional coating is constructed on the surface of the material by using a sol-gel dip coating process, and the problems of insufficient corrosion resistance and wear resistance of the dental material in the oral environment are further solved.

A method for treating a narrowed region of a lumen in a patient's ear or nose is described herein. The method includes advancing a catheter within the lumen such that a distal end of the catheter is positioned proximate the narrowed region, filling a fillable member to cause the fillable member to expand within the lumen, and generating at least one shockwave from at least one shockwave emitter. The at least one shockwave creates one or more fractures in a bone structure of the narrowed region of the lumen that causes the narrowed region to expand.

The embodiment of the invention relates to an image registration method and device, equipment and a storage medium. The method comprises the following steps: acquiring an original two-dimensional image and an original three-dimensional image of a to-be-registered target bone structure; inputting the original two-dimensional image into a bone splitting model to obtain a local two-dimensional image of each substructure, and inputting the original three-dimensional image into a bone segmentation model to obtain a local three-dimensional image of each substructure; and performing registration processing on the local two-dimensional image and the local three-dimensional image of any substructure by using a preset registration algorithm to generate a registration result between the local two-dimensional image and the local three-dimensional image. Therefore, the registration efficiency and accuracy of the two-dimensional image and the three-dimensional image are improved.

The utility model provides a bone puncture needle assembly for percutaneous bone cement plasty, and belongs to the technical field of medical instruments. The bone puncture needle assembly comprises a guide needle and a bone puncture needle. One end of the guide needle is a first tip, the diameter of the guide needle is a first preset diameter, and the length of the guide needle is a first preset length. A first passage penetrating through the length direction of the bone puncture needle is arranged in the bone puncture needle, one end of the bone puncture needle is a second tip, the inner diameter of the bone puncture needle is a second preset diameter, the length of the bone puncture needle is a second preset length, the second preset length is smaller than the first preset length, and the second preset diameter is larger than the first preset diameter; after the guide needle is inserted into the lesion bone structure from the first tip end, the bone puncture needle is arranged on the guide needle in a sleeving mode, and the second tip end is inserted into the lesion bone structure. According to the bone puncture needle assembly for the percutaneous bone cement plasty, it can be guaranteed that a bone puncture needle with the large diameter can be accurately inserted into a diseased bone structure at a time, and damage to the body of a patient is reduced.

Methods are described for conducting minimally invasive medical interventions utilizing instruments and assemblies thereof to stabilize and / or fixate a dysfunctional sacroiliac (SI) joint. In one embodiment, a drill assembly is advanced from a posterior approach into the SI joint to create a pilot SI joint opening; portions of which being disposed in the sacrum and ilium bone structures. After the pilot SI joint opening is created, a SI joint prosthesis is inserted into the pilot SI joint opening, wherein the SI joint prosthesis is positioned in the dysfunctional SI joint at a distance of at least 3.0 mm away from the SI joint dorsal recess.

The application discloses a snake bone structure and an endoscope, and relates to the technical field of medical devices. The snake bone structure comprises a limiting piece and a spiral pipe body. The pipe body comprises a plurality of sequentially connected bone segments. Each bone segment surrounds the axis of the pipe body once. A spiral cut is formed between two adjacent bone segments. The inner side walls of the first side and the second side of the bone segment in the first direction are provided with the limiting piece. The first direction is the radial direction of the bone segment. The surface of the bone segment forming the cut is a spiral surface, and at least one end of the extension direction of the limiting piece protrudes from the spiral surface. In the case that the pipe body is bent, the two adjacent bone segments can be limited by the limiting pieces on the same side. The snake bone structure can solve the problem that the inner side of the bending part of the snake bone structure is easily embedded in sequence from the head to the tail.

The present invention relates to the field of model construction technology, and in particular to a method for creating an image recognition model based on clinical disease data integration. The method comprises the following steps: acquiring a medical clinical orthopedic image set; extracting bone density and bone morphology from the medical clinical orthopedic image set and performing bone structure segmentation on the medical clinical orthopedic image set to generate a bone structure segmentation image, wherein the bone structure segmentation image includes a large bone structure image and a small bone structure image; analyzing the bone layer thickness of the large bone structure image and performing physical layer thickness compensation reconstruction on the large bone structure image to generate large bone intermediate virtual slice data; performing detail-guided reconstruction on the small bone structure image to generate small bone fracture texture reconstruction data. The present invention improves the accuracy of dynamic bone image recognition by enhancing image resolution, integrating multimodal data, performing motion simulation, and optimizing model training.

Systems are described for conducting minimally invasive medical interventions utilizing instruments and assemblies thereof to stabilize and / or fixate a dysfunctional sacroiliac (SI) joint. The systems include a drill guide adapted to create a pilot SI joint opening in the dysfunctional SI joint through an incision comprising a length no greater than 3.0 cm; portions of the pilot SI joint opening being disposed in the sacrum and ilium bone structures. The drill guide includes a tri-mode fixation system adapted to position and stabilize the drill guide during creation of the pilot SI joint opening in the dysfunctional SI joint and delivery of the SI joint prosthesis therein. The systems also include a SI joint prosthesis configured to be inserted into the pilot SI joint opening of the dysfunctional SI joint, and a prosthesis deployment assembly configured to engage the SI joint prosthesis and advance the SI joint prosthesis into the dysfunctional SI joint.

Methods of determining the position and orientation of an implant within a bone structure during a surgical procedure utilizing intraoperative data collected without radiation-based imaging, and associated systems and devices are disclosed herein. In some embodiments, a representative method includes capturing intraoperative data of the implant and the bone structure, wherein the bone structure has a portion external to the bone structure and visible in the intraoperative data. The method can further include registering the visible portion of the implant in the intraoperative data to (i) a three-dimensional model of the implant and (ii) initial image data of the bone structure. The method can further include determining the position and orientation of the implant relative to the bone structure based on both registrations.

The invention provides a bone tissue-imitating TPMS-Voronoi composite structure modeling method, which comprises the following steps of: firstly, delimiting design domains including a cubic design domain and a columnar design domain according to a selected overall dimension, and then forming a tubular design domain of a compact bone and a columnar design domain of a cancellous bone on the basis of the columnar design domain; based on the design domains, establishing a TPMS structure compact bone model and a Voronoi structure cancellous bone model respectively, and finally performing Boolean union operation on a mesh model of the TPMS structure compact bone and a mesh model of the Voronoi cancellous bone structure to form a TPMS-Voronoi composite structure model of the simulated bone tissue. According to the modeling method provided by the invention, the periodic regular structure and the randomly distributed porous structure are fused, the native bone tissue can be matched at the same time in the three aspects of stress environment, body fluid circulation and structural geometric characteristics, and the overall mechanical property of the composite structure is remarkably improved.

The utility model relates to the technical field of endoscopes, and discloses a snake bone structure and an endoscope, and the snake bone structure comprises a fixing ring and a flexible bending part connected to the fixing ring; the flexible bending part comprises a snake bone head part, a snake bone middle part connected to the snake bone head part and a snake bone tail part connected to the snake bone middle part, and the snake bone middle part comprises a plurality of snake bone middle sections which are connected end to end; the plurality of anti-pinch mechanisms are respectively connected to the snake bone head part, the snake bone middle section and the snake bone tail part; according to the utility model, the anti-pinch mechanism is additionally arranged on the part, which is possibly damaged by clamping, of each snake joint in the flexible bending part, so that when the adjacent snake joints start to be in contact with each other, the anti-pinch mechanisms are extruded and spread and extend in the contact gap of the two snake joints; the elastic sleeve located in the contact gap of the two adjacent snake joints can be effectively squeezed out of the contact gap, and therefore damage to the elastic sleeve in the operation process is reduced or completely eradicated.

The invention discloses a multi-modal data fusion-based rheumatoid arthritis early-stage AI intelligent diagnosis system, belongs to the technical field of medical artificial intelligence, and aims to solve the problems that in the prior art, RA early-stage diagnosis lags behind, the rate of missed diagnosis of serum negative patients is high, and risk assessment lacks quantitative standards. Comprising a multi-source data acquisition module, a data preprocessing module, a cross-modal fusion module, a dynamic time sequence model and a risk assessment module which are connected in sequence, according to the system provided by the invention, a dynamic tracking model of serological change-synovial inflammation-bone structure change is innovatively constructed, and an RA diagnosis window is advanced compared with that of a traditional method (depending on clinical symptoms) by capturing time sequence correlation of the serological change, the synovial inflammation and the bone structure change; aiming at the diagnosis difficulty of serum-negative RA, the system realizes great improvement of diagnosis performance through deep fusion of multi-modal features, serological core indexes, ultrasonic synovial dynamic features and X-ray bone microscopic features.