44 results about "Bone shape" patented technology

A method of treating osteoarthritis by modifying the shape change of bone(s) underlying articular cartilage, comprising 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 is disclosed.

The invention discloses a skeleton tissue subdivision and reconstruction method based on an SAM series model. The method comprises the following steps: converting image data into a format supported by the model; generating an optimized feature map in the convolutional network; performing feature slicing operation on the feature map, calibrating slices and reconstructing the slices into a complete feature map; inputting the feature map into a detection head to generate a candidate box and a confidence score, embedding prompt information into a segmentation decoder, and fusing the prompt information with the feature map to generate a segmentation mask; storing the feature result of the current frame in a memory bank; the prompt information is coded into an embedded mode, and after the prompt information is fused with the feature map, segmentation masks related to the prompt are generated; and formatting the target detection result, adjusting the size of the segmentation mask to be aligned with the input image, and storing the detection and segmentation result as a specified format file. According to the method, the bone tissue can be efficiently segmented, and boundaries can be accurately distinguished under the condition that the upper and lower bones are similar in shape and close in position.

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 surgical guide plate for periacetabular osteotomy comprises an upper positioning guide plate, a middle positioning guide plate and a lower positioning guide plate. The upper positioning guide plate and the middle positioning guide plate are connected together through an upper connecting mechanism, and the middle positioning guide plate and the lower positioning guide plate are connected together through a lower connecting mechanism; smooth guide surfaces are arranged on the inner sides of the upper positioning guide plate, the middle positioning guide plate and the lower positioning guide plate. The upper connecting mechanism and / or the lower connecting mechanism have / has a spatial position adjusting function, and the upper positioning guide plate, the middle positioning guide plate and the lower positioning guide plate can be fixed into a final operation path curve according to clinical data through the upper positioning mechanism and the lower positioning mechanism after the spatial positions of the upper connecting mechanism and the lower connecting mechanism are adjusted according to clinical requirements. In the operation process, the bone shape needing to be reconstructed can be obtained only by moving the cutting instrument along the guide face, a very good auxiliary effect is achieved for an operation doctor, and the operation difficulty of the operation doctor is greatly reduced.

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 method for manufacturing a jaw bone fixation and morphological filling body, which belongs to the field of surgical operation technology, and includes the following steps: preliminary design of the filling body: designing a PEEK material filling body A according to the patient's bone morphological imaging data; positioning guide plate design: designing a bone cutting line and a positioning hole on the positioning guide plate; secondary design of the filling body: simulating bone cutting surgery to obtain the postoperative new bone morphology, and subtracting the overlapping part of the PEEK material filling body A with the free bone block to obtain the PEEK material filling body B; tertiary design of the filling body: designing a retention hole on the PEEK material filling body B, and performing edge trimming and surface smoothing treatment to obtain the PEEK material filling body C; manufacturing the filling body and positioning guide plate: manufacturing according to the design scheme of the PEEK material filling body C and the positioning guide plate. A filling body made of PEEK material can be manufactured, which can achieve the dual functions of postoperative bone block fixation and bone morphological filling, simplify the surgical process, and has no imaging artifacts.

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 disclosure relates to formulations for the treatment of osteoarthritis. Disclosed are formulations for treating osteoarthritis by altering a change in shape of articular subchondral bone. The use includes assessing 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 reduce changes in the shape of the articular subchondral bone, and thereby assessing the bone shape of the patient's joint.

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 present invention discloses a non-Newtonian fluid simulation method and system for multiphase fluid, which belongs to the field of fluid simulation in computer graphics, including: modeling bone structure, including bone shape modeling and porous material modeling inside bone; modeling incompressible fluid based on smooth particle fluid dynamics; unified modeling of Newtonian fluid, shear thinning fluid and shear thickening fluid based on polymer conformation tensor method, and calculation of rheological properties of fluid; based on mixed model, constructing multiphase fluid simulation framework to support two-phase mixed modulation and multiphase fluid dynamics; exporting simulation data and reconstructing fluid surface according to fluid particles, using multiphase fluid rendering technology to render RGB pictures and make fluid animation. The present invention has stable process and realistic visualization effect, and can assist in medical teaching of bone cement surgery or help doctors evaluate the feasibility of surgical plans at low cost.

1. The name of the product of this design: Crutch (bone shape). 2. Purpose of the product of this design: to assist people with disabilities to walk or stand. 3. The design focus of this appearance design product lies in the overall appearance of the product. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

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 method of treating osteoarthritis by modifying the shape change of bone(s) underlying articular cartilage, comprising 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 is disclosed.

The present invention provides a guide device (1) that is used for resection of a bone in a region where a bone plate is located. In order to resect the bone to make the bone conform to the shape of a bone contact surface of the bone plate, the guide device comprises: a fixed part (2) that is fixed to the bone and has a resection region (S) located at a resection site of the bone; and a guide part (3) that guides a cutting tool or a guide member in the resection region (S). The guide part (3) guides the cutting tool or the guide member along a plate surface (P) having the same or substantially the same shape as the bone contact surface of the bone plate.

The surgical guide plate for periacetabular osteotomy comprises an upper positioning guide plate, a middle positioning guide plate and a lower positioning guide plate. The upper positioning guide plate and the middle positioning guide plate are connected together through an upper connecting mechanism, and the middle positioning guide plate and the lower positioning guide plate are connected together through a lower connecting mechanism; smooth guide surfaces are arranged on the inner sides of the upper positioning guide plate, the middle positioning guide plate and the lower positioning guide plate. The upper connecting mechanism and / or the lower connecting mechanism have / has a spatial position adjusting function, and the upper positioning guide plate, the middle positioning guide plate and the lower positioning guide plate can be fixed into a final operation path curve according to clinical data through the upper positioning mechanism and the lower positioning mechanism after the spatial positions of the upper connecting mechanism and the lower connecting mechanism are adjusted according to clinical requirements. In the operation process, the bone shape needing to be reconstructed can be obtained only by moving the cutting instrument along the guide face, a very good auxiliary effect is achieved for an operation doctor, and the operation difficulty of the operation doctor is greatly reduced.

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.