32 results about "Bone shape" patented technology

A self-contouring plate system for bone fractures comprises a plurality of rigid plate elements connected by ball-and-socket joints. Each plate element includes a ball at one end and a socket at an opposite end for receiving a ball from an adjacent plate element. A single fastener for each plate element serves the dual function of securing the plate to bone and compressing the ball into the socket to lock the joint. The fastener includes bone threads for engaging bone and a head with a lower surface that directly contacts and compresses the ball. The system allows initial flexibility for contouring to complex bone shapes, then locks into position when the fasteners are tightened. The length is adjustable by adding or removing plate elements. Each plate element maintains substantially uniform thickness without protruding elements, and the balls are solid spherical members without through-holes to maximize strength and range of motion.

The utility model discloses an orthopedic fixing plate and relates to the technical field of orthopedic medical treatment. Comprising a connecting plate, a side plate is arranged on the side face of the connecting plate, a positioning groove is formed in the lower surface of the connecting plate, a base plate is arranged below the positioning groove, a nut is embedded in the base plate, inserting grooves are formed in the two ends of the connecting plate, through grooves are formed in the side faces of the inserting grooves, and connecting bolts are inserted into the through grooves. An insertion plate is fixedly connected to one side of the side plate, and a threaded groove is formed in the middle of the insertion plate; the kidney-shaped holes are combined with the fixing bolts and fixed to the bone, the side plates are combined and connected with the connecting plates through the inserting plates, the side plates can be replaced conveniently, the side plates more suitable for the shape of the bone can be used conveniently, meanwhile, the kidney-shaped holes provide a certain movable interval for the fixing bolts, and the stability of combined connection of the fixing bolts, the side plates and the bone is improved; therefore, the adaptability of the orthopedic fixing plate to bones of different patients is improved.

The invention discloses a characterization method for describing tibia malformation correction path features, and the characterization method comprises the following steps: S1, building a bone section model, and modeling a bone section after osteotomy into a closed ring surface with the tail end of the bone section as the center; s2, according to the total correction period, the total adjustment amount of all traction rods of the parallel external fixator is averagely distributed every day, and then joint space equal-interval discrete planning is achieved; s3, constructing correction path characteristic evaluation indexes including rod length adjustment rate, bone section position stretching rate and bone section posture stretching speed; s4, the new bone shape is visually represented, the growth process of the bone section is represented as a series of discrete closed ring surfaces along the correction path, and the new bone shape is represented as the volume swept by the series of discrete closed ring surfaces along the correction path. According to the method, the visual representation of the new bone generation process in the malformation correction process is realized, so that a clinician is assisted to carry out feasibility analysis and evaluation on a preoperative correction prescription.

The invention relates to the technical field of medical image processing, in particular to a calcaneal fracture reduction effect dynamic evaluation system based on a three-dimensional image. According to the system, the broken bone shape features of each bone block are obtained based on Gaussian curvature information of the surfaces of the bone blocks, broken bones corresponding to broken main bones are determined through a classification and direction correlation analysis method, broken bone indexes are quantified, and a bone area is obtained. Dividing the bone region into a to-be-registered region and a damaged region by utilizing the damage characteristic value, determining a stress influence direction of the to-be-registered region by combining information in the damaged region, and obtaining extrusion characteristics and offset characteristics of the bone block in the stress influence direction, and screening out an initial registration point of the bone block in combination with the damage characteristic value, and performing registration and reduction effect evaluation. According to the method, the bone blocks in the three-dimensional model are effectively identified and classified, the accurate initial registration points are screened out for registration by analyzing the fracture influence condition, and the registration effect and the reduction evaluation accuracy are ensured.

The invention discloses an acupuncture point positioning method based on a bone degree discount measure method and related equipment, and is applied to the technical field of data processing. Back positioning reference data and traditional Chinese medicine bone degree standards are obtained, the back positioning reference data and preset dynamic proportion parameters are combined, and the acupuncture point coordinate mapping relation of users with different body types is simulated; based on a traditional Chinese medicine bone degree discount measure method and real human body back data, establishing a bone degree and physical length conversion rule, and generating a dynamic proportion constraint condition; processing based on dynamic proportion parameters, back reference data, sample proportion control and parameter combination constraint conditions to generate acupuncture point target coordinates; processing the generated acupuncture point target coordinates, and generating a sample related evaluation result in combination with individual difference parameters including a skeleton form, soft tissue thickness and a dynamic posture; and processing the evaluation result and the parameter setting basis in combination with traditional Chinese medicine bone degree specifications and international standards to generate acupuncture point positioning information.

1. Name of the product in this design: Nose strip (concave bone shape). 2. Purpose of this design: To improve nasal breathing. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key features: the front view. 5. This design is for a thin product; other views are omitted.

The utility model belongs to the technical field of medical instruments, and discloses a joint protractor, which comprises a dial, a fixed arm, a movable arm and a positioning piece, the fixed arm is fixed with the dial, the movable arm is rotatably connected onto the dial, and the linear projections of the movable arm and the fixed arm both pass through the center of the circle of the dial. The movable arm and the fixed arm are respectively connected with a positioning piece in a sliding mode, each positioning piece is provided with a limiting part, and the limiting parts are used for limiting the distance between the movable arm and the tested body and the distance between the fixed arm and the tested body. According to the joint protractor, through the positioning pieces arranged on the fixed arm and the movable arm, the influence of the bone shape on the fixed arm and the movable arm in the detection process is avoided, and therefore the detection accuracy of the joint protractor is improved.

The present application relates to the medical image processing technical field, specifically to a kind of calcaneus fracture reduction effect dynamic evaluation system based on three-dimensional image.The system obtains the broken bone shape feature of each bone block based on the surface gauss curvature information of bone block, determines the broken bone corresponding to the main bone of fracture by the method of classification and direction correlation analysis, quantifies broken bone index, obtains skeletal region.Using damage eigenvalue, the skeletal region is divided into to-be-registered region and damage region, in combination with the information in damage region, the stress influence direction of to-be-registered region is determined, the extrusion feature and the offset feature of bone block in stress influence direction are obtained, and the initial registration point of bone block is screened out in combination with damage eigenvalue for registration and reduction effect evaluation.The present application classifies the bone block in three-dimensional model effectively, and the initial registration point is screened out for registration by analyzing the situation affected by fracture, so that the registration effect and the accuracy of reduction evaluation are guaranteed.

The invention provides a material identification sensor. The material identification sensor comprises: a support frame having an outline of one or more skeleton shapes of a human body or an animal and a hollow cavity for arranging a signal line; the back surface of the three-dimensional force sensing layer is tightly wrapped on the support frame so that the support frame is supported and the three-dimensional force sensing layer has an outline which is similar to the shape of the support frame, and an embedded microneedle array which is used for directly decomposing a three-dimensional force vector on a physical level is arranged on the surface of the three-dimensional force sensing layer; the back surface of the elastic filling layer wraps the three-dimensional force sensing layer, so that the three-dimensional force sensing layer is supported, and the elastic filling layer has an outline which is similar to that of the three-dimensional force sensing layer, so that force applied externally is buffered and conducted to the embedded microneedle array; the back surface of the material sensing layer is wrapped on the elastic filling layer, so that the material sensing layer is supported and has an outline which is similar to that of the elastic filling layer, and mastoid arrays are periodically arranged on the surface of the material sensing layer.

A formulation for use in treating osteoarthritis by modifying the shape change of bone(s) underlying articular cartilage is disclosed. The use comprises evaluating the bone shape of the patient's joint, injecting the patient with a peptide of SEQ ID No. 1 or applying other therapeutic interventions that can reduce the shape change of the bone(s) underlying articular cartilage, and thereafter evaluating the bone shape of the patient's joint.

1. Name of the product in this design: Handle (concave bone shape). 2. Application of this design: This design is mainly used for furniture handles. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key features: the front view.

1. Name of the product in this design: Teething stick (bone shape). 2. Purpose of this design: for pets to chew on and play with. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The application discloses a femoral head lesion auxiliary positioning guider and a high-precision positioning method, and relates to the technical field of medical treatment, which comprises a femoral head lesion guider, a guider positioner and a needle depth positioner, the guider positioner comprises a fixing set, a holding handle and an iliac bone positioning plate, the fixing set is arranged at one end of the holding handle, the iliac bone positioning plate is arranged at the other end of the holding handle, a precut anterior superior iliac spine clamping groove is arranged on the iliac bone positioning plate, and a channel positioning cavity is arranged in the middle of the fixing set. The femoral head lesion auxiliary positioning guider of the application is customized, the precision and effect of traditional positioning of femoral head lesions can be effectively improved, the bone shape and lesion conditions of different patients can be better adapted to, the success rate of surgery and the postoperative recovery effect of patients are improved, the number of fluoroscopy in surgery is greatly reduced, the surgery time is shortened, the surgery risk is reduced, and the surgery success rate is improved.

The application provides a screw angle measurement and guiding positioning method of a proximal femoral compression plate, which is applied to the technical field of orthopedic surgery assistance, and is characterized in that: a three-dimensional bone shape model of the proximal femur of a patient is constructed before surgery, different X-ray projection directions are simulated, the projection of a virtual guide needle on a two-dimensional image is generated, the included angle parameter between the femoral neck axis and the guide needle projection is measured, the screw incidence angle parameter is corrected, the guide device shell, the guide hole and the sensor layout are further designed based on the angle parameter, and the cooperation simulation is carried out on the three-dimensional bone shape model to evaluate the fitting degree of the guide device on the bone surface and the positioning accuracy of the guide hole, so as to provide accurate reference for preoperative screw placement path planning and intraoperative guide device use, realize the quantifiable design and guiding control of the screw incidence angle, and reduce the deviation of screw placement.

The invention relates to a design method of a proximal fibula intramedullary nail based on computer simulation. Comprising the following steps: constructing a three-dimensional digital model of near-end and surrounding tissues of fibula based on CT scanning data of a patient, and accurately marking common peroneal nerve walking, skeleton morphological characteristics and fracture types; simulating stress distribution data of the fracture part by using a finite element analysis method; in combination with the three-dimensional model and the stress distribution data, a personalized intramedullary nail model matched with the proximal curvature, length and internal structure of the individual fibula is generated through parameterized design; and planning a minimally invasive implantation path of the intramedullary nail in a computer simulation environment, and generating matched implantation path data to guide an operation. Compared with the prior art, three-dimensional anatomical modeling, finite element analysis and parametric design technologies are creatively integrated, a complete personalized intramedullary nail design system is established, and the matching precision, fixing stability and operation safety of instruments and bones are effectively improved.

The invention relates to the technical field of joint prosthesis processing, and discloses a clamping device for allogeneic bone grinding, which comprises a base sliding rail and two groups of circular ring seats, a rotating seat ring is rotatably mounted on an inner ring of the circular ring seat in a drivable manner, an iris clamping mechanism is arranged on the rotating seat ring, the iris clamping mechanism comprises a rotating ring and a plurality of groups of opening and closing plates, and the rotating ring is used for driving the opening and closing actions of the plurality of groups of opening and closing plates; the multiple sets of positioning chucks jointly position and clamp the allogeneic bone, and flexible chucks used for stably positioning the allogeneic bone are further arranged on the positioning chucks. According to the iris clamping mechanism, synchronous opening and closing of all the chucks are achieved through one-position driving, the operation process is simplified, and efficient synchronous control is achieved; the buffer spring enables each positioning chuck to be independently and elastically adjusted and to be tightly attached to a non-uniform bone shape, local stress concentration is avoided, and the self-adaptive clamping capacity is achieved; and the flexible chuck and the positioning chuck form a double contact surface, so that friction is increased to prevent the aggregate from slipping.

1. Name of the product in this design: Nose strip (petal-shaped). 2. Purpose of this design: To improve nasal breathing. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key features: the front view. 5. This design is for a thin product; other views are omitted.

A bone lengthening auxiliary device with a telescopic mesh support for assisting interosseous growth, on the basis of the current bone lengthening external fixation device, a mesh telescopic support made of magnesium material is fixed between the two ends of the osteotomy by the first bone external fixation needle or steel needle, and the first bone external fixation needle or steel needle for fixation is installed on the external fixation frame. The support can gradually expand with the lengthening of the two ends of the osteotomy, forming a mesh structure, providing a porous mesh support for guiding interosseous tissue regeneration between the two ends of the osteotomy, and improving the osteogenesis efficiency and strength during bone lengthening. The magnesium metal material can be degraded automatically in the later stage, and the degradation process can promote osteogenesis. The bone lengthening external fixation device is simple and convenient to operate during adjustment, with scales to ensure the adjustment accuracy; the support is prepared by 3D printing, which can be designed individually for different patients and different parts of the bone shape, and the mesh pore size can be controlled, with good adaptability and good bone lengthening effect.

The invention belongs to the technical field of periodontal repair medical instruments, and particularly relates to a pair of three-dimensional viscous bone forming forceps for periodontal tissue regeneration, which comprises two forceps handles, a hinge piece and locking structures arranged at the tail ends of the forceps handles, the working ends of the two forceps handles are provided with detachable lip side viscous bone forming structures or tongue side forming structures. Each lip side viscous bone forming structure comprises a first arc-shaped concave block, a second arc-shaped concave block and a third arc-shaped concave block, wherein the first arc-shaped concave block is fixed to the end of one forceps handle through a screw; the first arc-shaped convex block is fixed to the end of the other clamp handle through a screw, the outer convex face of the first arc-shaped convex block is matched with the arc face of the first arc-shaped concave block in an inserted mode, and a first working groove and the like are formed in the face, close to the first arc-shaped convex block, of the first arc-shaped convex block. According to the three-dimensional-configuration viscous bone forming forceps, through physical property improvement (viscosity solidification) and shape presetting (dissecting to be matched with a groove type) of a bone grafting material, the three major pain points of bone meal collapse, insufficient increment of key sites and operation dependence on experience in a traditional PAOO operation are solved, and the bone increment accuracy and long-term stability are remarkably improved.

The article to which the design relates is a spinal implant called a laminoplasty plate, which is used as a plate to fix the osteotomized vertebral arch during laminoplasty. The spinal implant is bent and deformed to fit the bone shape, and then inserted between the incised vertebral arches while fixing the upper and lower ends to the bone with screws. It has strength equal to or greater than that of the bone, and is designed to maintain the enlarged spinal canal until the bone in the bone groove (hinge) area heals.

Compounds, pharmaceutical compositions, and a method of treating hard tissue diseases and disorders are disclosed. The compounds may be a peptide and is structured to bind integrin αvβ3 expressed by osteocytes and by selective binding to the cell surface integrin on hard tissue forming cells regulate three-dimensional bone shape, cartilage formation and repair.

1. The name of the design product: pet food (bone type auxiliary feeding freeze-dried). 2. The use of the design product: for pets to eat. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective drawing.

The invention discloses a 3D printing ABS bone model for ankle joint operation plan reproduction and postoperative form prediction, and aims to solve the problem that an existing three-dimensional bone model can only display a preoperative anatomical structure and cannot visually display an operation plan and a postoperative bone form. According to the method, bone structure reconstruction is carried out based on preoperative three-dimensional imaging data of a patient, after a doctor selects an operation scheme, a three-dimensional model of an ankle joint postoperative bone structure is generated through parameterized simulation of osteotomy, rotation and correction processes, and the three-dimensional model is materialized with an ABS photosensitive resin material by adopting a photocuring 3D printing technology. Postoperative bone forms and related operation adjustment information can be displayed in the model and are used for assisting preoperative diagnosis, operation planning, doctor-patient communication and intraoperative reference. The preparation process is clear, the cost is controllable, and the preparation method has good clinical application prospect and popularization value.

The present disclosure relates to a nasal root detection method, device, storage medium and electronic device. The method comprises: acquiring an NCCT image sequence of a head of a to-be-detected object; determining a skull region according to the NCCT image sequence; determining a nasal root candidate region from the skull region based on a position feature of a nasal root; and determining the position of the nasal root from the nasal root candidate region according to a bone shape feature at the nasal root. The present disclosure is more accurate and safe in determining the position of the nasal root.

The utility model discloses a bone grafting support for bone defect membrane induction, which comprises a truss body, one end of the truss body is provided with an upper connecting piece, and the other end of the truss body is connected with a lower connecting piece; an upper connecting bone-shaped channel is machined in the upper connecting piece, and a lower connecting bone-shaped channel is machined in the lower connecting piece. Before the bone defect membrane is induced to be implanted into the stent, the upper connecting bone-shaped channel on the upper connecting piece is designed to be in the shape of a lower bone section between osteogenesis defects, and the lower connecting bone-shaped channel on the lower connecting piece is designed to be in the shape of an upper bone section between osteogenesis defects, so that the implanted stent is more matched with bones, and subsequent repair treatment work is facilitated; and after the connection of the implanted stent is completed, the two ends of the screw are embedded into the mounting hole and the hexagonal nut, no protruding hardware structure exists, and the later repair treatment work is facilitated.

Forming a microelectronic devices forming a stack structure comprising a vertically alternating sequence of insulative structures and other insulative structures arranged in tiers, forming a pattern of openings in the stack structure, the openings extending into the stack structure from an uppermost surface of the stack structure, the pattern of openings including first groups of openings respectively including openings substantially linearly arranged relative to one another and second groups of openings respectively including additional openings horizontally arranged relative to one another in a dog-bone shape, merging the openings within respective first groups of openings together to form slots, and merging the additional openings within respective second group of openings to form merged openings individually including a central elongated portion and two wide end portions at opposing horizontal ends of the central elongated portion.

The present application relates to a method and system for identifying bone shape based on neural network through face photos, comprising the following steps: S1, constructing a sample set: the sample set is divided into three types of sagittal bone types, I, II, III, each sample includes front, 45-degree and 90-degree side face photos; S2, constructing and training Shuffl e-Attent i on model based on soft tissue face photo to distinguish bone classification: the model adopts lightweight Shuffl eNet as the backbone, specifically including three input layers, three feature extractors, a feature fusion layer for integration, an SE module for attention mechanism and a classifier, inputting three-angle face photos into the trained model to distinguish the bone classification; S3, analyzing the soft tissue features of Shuffl e-Attent i on model to distinguish bone classification, and prompting the sample feature soft tissue performance of three types of bone types. The accuracy of identifying bone type based on soft tissue in the present application is better than that of trained orthodontic doctors by naked eye, and the model can process human difficult clues.

The invention discloses a pelvic prosthesis, and relates to the technical field of medical instruments. The pelvic prosthesis comprises a prosthesis main body which is arranged at a pelvic bone resection part; the wrapping assembly is connected with the prosthesis main body through a connecting rod, the connecting rod has flexibility, and the wrapping assembly is used for being connected with the pubis; the ilium connecting plate is arranged between the prosthesis main body and the ilium, and the ilium connecting plate is detachably connected with the prosthesis main body; the sacrum connecting plate is arranged on the prosthesis main body through a rotary adjusting assembly, and the rotary adjusting assembly is used for adjusting the clamping angle between the sacrum connecting plate and the prosthesis main body. The pelvic prosthesis can be suitable for resection of bones at different parts of the pelvis, and the bone bridges between the bones can be adjusted according to the specific bone shape, bone spacing and the like of a patient, so that the implanting requirements of various prostheses are met, and the applicability of the pelvic prosthesis is improved.

The invention discloses a children sagittal bone face type AI screening model based on facial features and a method thereof, and belongs to the technical field of artificial intelligence auxiliary screening. A 90-degree side appearance picture is used as a main view angle image, a 45-degree side appearance picture and a front smile picture are used as auxiliary view angle images to construct a main and auxiliary view angle feature fusion model, and through feature extraction, feature fusion and classification, probability distribution of samples in three categories of bony I, bony II and bony III is output. Compared with a single-view-angle classification model, the main and auxiliary view angle feature fusion model has the advantages that the recall rate, the specificity, the F1 score, the accuracy rate and the area under an ROC curve are improved, and by taking the model 7 as an example, the classification performance comparison with orthodontic doctors with different clinical experiences (primary, intermediate and high-grade) on an independent test set shows that the model 7 has the advantages that the accuracy is high; the model 7 is obviously superior to primary and intermediate orthodontic doctors in the aspects of macro average and overall accuracy of various indexes, and most of the indexes exceed those of advanced orthodontic doctors.

The utility model relates to the technical field of medical equipment, and discloses a leg bone reduction nail locking device which comprises an arc-shaped plate, a mounting piece is arranged at the top of the arc-shaped plate, an adapter block is arranged at the top of the mounting piece, a rail rod is arranged on one side of the adapter block, a movable block is slidably connected to the outer surface of the rail rod, and the movable block is arranged on the outer surface of the arc-shaped plate. And one side of the moving block is fixedly connected with a positioning piece, and the inner wall of the positioning piece is slidably connected with a bone nail. According to the leg bone reduction nail locking device, through cooperative arrangement of the moving block, the positioning piece and the bone nail, the height and angle of the device can be flexibly adjusted according to leg bone shapes and reduction requirements of different patients, the stability and adaptability of the device are ensured, and therefore more accurate reduction of leg bones is achieved; damage to the moving block in the sliding process is reduced by adding the soft rubber mat, the positioning button is used for fixing the moving block after adjustment is completed, and the stability of the reduction process is ensured.