41 results about "Bone area" patented technology

The invention discloses a multi-task collaborative bone tumor CT image segmentation method, system and device, and relates to the technical field of bone tumor CT image segmentation. According to the multi-task collaborative bone tumor CT image segmentation method, a bone tumor CT image segmentation model is adopted to carry out bone tumor segmentation on a target bone tumor CT image; the bone tumor CT image segmentation model is trained and obtained through the following method: obtaining an original bone tumor CT image; according to the original bone tumor CT image, screening through a CT value range to obtain a bone image and a soft tissue image; marking a tumor area and a skeleton area in the bone image and the soft tissue image to form a training sample; constructing a multi-task learning network including a skeleton segmentation task and a tumor segmentation task; and training the multi-task learning network based on at least one group of training samples to obtain a bone tumor CT image segmentation model. According to the invention, the bone tumor can be identified more accurately, and the precision of bone tumor segmentation is improved.

The invention relates to the technical field of medical image processing, and particularly provides an SPECT bone scanning image restoration method, electronic equipment and a storage medium, and the method comprises the steps: S1, carrying out the skeleton segmentation of an SPECT bone scanning image, so as to obtain a plurality of skeleton regions; s2, segmenting the SPECT bone scanning image in each bone region into a first foreground and a first background, and then obtaining first foreground feature value information according to the first foreground; s3, according to the first foreground feature value information and a preset feature value of the corresponding skeleton region, analyzing whether there is an artifact in the skeleton region; s4, when artifacts exist in the bone area, acquiring a supplementary scanning image, and repairing the SPECT bone scanning image based on the supplementary scanning image; according to the method, the imaging quality of the SPECT bone scanning image and the diagnosis accuracy of the bone metastasis cancer can be effectively improved.

The invention discloses an oral cavity panorama image data enhancement method and system. The method comprises the steps that an oral cavity panorama image is acquired and preprocessed; constructing and training an oral cavity panorama image data enhancement model, and inputting the preprocessed oral cavity panorama image into the trained auto-encoder to generate an enhanced image; according to the method, interference of a non-concerned area is effectively inhibited, the alveolar bone area is focused, the alveolar bone area is extracted more accurately, excessive segmentation and wrong classification are avoided, learning of key features is effectively enhanced, response of a key area is enhanced, artifact influences are effectively eliminated, the reconstruction effect is optimized, and the method is suitable for being popularized and applied. Therefore, non-physiological tooth arrangement after model reconstruction is avoided, the structural property and the layering sense of the image are further enhanced, overfitting is avoided, and meanwhile the regularization intensity in the training process is optimized.

The invention relates to the technical field of computer vision and deep learning algorithm optimization, in particular to an image processing method and system based on a fusion growing point optimization algorithm and a Unet network, and the method comprises the following steps: collecting a lumbar vertebra CT image, extracting the gray value and the HU value of each pixel in the image, marking a lumbar vertebra bone region, obtaining the density information of the lumbar vertebra bone region, and obtaining the density information of the lumbar vertebra bone region; analyzing the gradient of the lumbar vertebra, segmenting the initial region, obtaining information points of the basic region from the initial region, classifying, and generating initial structural features of the lumbar vertebra; according to the invention, by collecting the lumbar vertebra CT image and extracting the gray value and the HU value of the pixel, the density information of the lumbar vertebra bone region is obtained and preliminary segmentation is carried out, the gradient change of the region can be accurately analyzed, and a reliable basis is provided for the preliminary region of the image. In the process, the deviation of the lumbar vertebra bone form is successfully corrected by dynamically adjusting the image rotation angle and analyzing the angle difference of the boundary normal, so that the consistency of the form in the subsequent processing process is ensured.

The invention relates to the technical field of medical image processing, and particularly provides a three-dimensional bone scanning total index calculation method, electronic equipment and a storage medium, and the method comprises the following steps: S1, carrying out focus segmentation on SPECT (Single Photon Emission Computed Tomography) tomographic bone scanning data to obtain a plurality of focus areas, each focus area corresponding to a bone metastasis focus; s2, performing skeleton segmentation and SPECT spatial conversion on the CT fault data to obtain a plurality of skeleton regions; s3, calculating a three-dimensional bone scanning index of each bone metastasis focus according to a proportional relation between the focus area and a bone area to which the focus area belongs, and then calculating a total three-dimensional bone scanning index according to all the three-dimensional bone scanning indexes; the method can effectively solve the problem of low acquisition precision of the total area of the bone region to which the focus belongs due to insufficient segmentation precision of the bone region.

The invention relates to a fixation element (1) for the osteosynthesis of several bones or bone regions (2, 3) that, for example, adjoin one another along a fracture (5). For this purpose, the fixation element (1) has at least one hollow cylindrical projection that can be inserted into a groove-shaped recess in the bone structure (4) extending over both bone regions (2, 3). Because the holding force of the fixation element (1) acts parallel to the surface of the bone structure due to its ring shape, the bone regions (2, 3) can be fixed against each other with the desired compression even without the use of an osteosynthesis plate, requiring only a shallow depth in the bone structure (4).

This application relates to the field of medical devices and discloses a multi-arm orthopedic medical robot, including a mounting frame, a camera, a robotic arm, and orthopedic instruments. It also includes a receiving cylinder hinged to the top of the orthopedic instruments via a set of hinge blocks, the inner cavity of which is filled with a sealing fluid; and a telescopic column, which is sealed within the receiving cylinder. This invention utilizes multiple sets of fluid guide ports at the bottom of the telescopic column to allow the sealing fluid to flow along these ports during relative sliding of the receiving cylinder and the telescopic column, maintaining their telescopic function. Once the robotic arm has adjusted the angle of the orthopedic instruments, the receiving cylinder and the telescopic column cease relative movement, becoming a rigidly connected unit. In this state, the reaction force generated during drilling, hammering, or other operations on bone areas by the orthopedic instruments is directly transmitted to the mounting frame through the receiving cylinder and the telescopic column, thereby protecting the robotic arm and maintaining the stability of the device.

The present application relates to a system, method, storage medium and program product for safely monitoring the amount of bone grinding. The system includes an upper computer and a lower computer electrically connected to each other, and a motor connected to the lower computer; the motor is used to drive the motor bone grinding instrument to rotate; during the process of using the bone grinding instrument to grind the bone area to be ground in the hip bone of the test object, the upper computer performs a first monitoring of the amount of bone grinding corresponding to the area to be ground based on the first bone grinding related data sent by the lower computer; the lower computer performs a second monitoring of the amount of bone grinding corresponding to the area to be ground based on the second bone grinding related data sent by the upper computer; if the amount of bone grinding monitored by at least one of the first monitoring and the second monitoring exceeds a set threshold, the lower computer controls the motor to power off. The use of this system can improve the accuracy of the results of monitoring the amount of bone grinding.

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 relates to the technical field of oral medical instruments, and discloses an embedded polygenic tooth digital operation positioning guide plate which comprises a tooth supporting part and a bone supporting part which are integrated, and a positioning hole is formed in the bone supporting part; incision grooves are formed in the left side and the right side of the positioning hole in the bone supporting part, the upper ends of the incision grooves cross the boundary line of the tooth supporting part and the bone supporting part, and gaps are reserved between the lower ends of the incision grooves and the lower edge of the bone supporting part; the inner side face, used for being attached to the bone face, of the bone supporting part is divided into four areas by two incision grooves, the four areas comprise a bone area located between the two incision grooves, and a positioning hole is formed in the bone area; the two side skin areas are located in the area between the incision groove and the side edge of the bone supporting part; the inferior skin area is positioned in an area between one ends, far away from the tooth supporting part, of the two incision grooves and the lower edge of the bone supporting part; the heights of the four areas on the inner side face of the bone supporting part are different, the lower skin area is higher than the two side skin areas, and the side skin areas are higher than the bone area.

The invention provides an SPECT bone imaging noise reduction method and device and a storage medium, and relates to the technical field of nuclear medicine image processing.The SPECT bone imaging noise reduction method comprises the following steps that S1, data collection and reconstruction are conducted, specifically, multi-stage downsampling is conducted on standard-dose SPECT table mode data to generate low-dose SPECT data; s2, data preprocessing: performing cutting and linear normalization processing on the reconstructed low-dose and standard-dose SPECT images; s3, model construction: constructing a deep learning model of a lightweight Restormer architecture; and S4, model training: carrying out end-to-end model training by utilizing the preprocessed multi-stage low-dose and standard-dose image pair. According to the method, the deep learning model of the lightweight Restormer architecture is constructed, and the FFT frequency domain self-adaptive decomposition module is integrated step by step, so that high-frequency noise and low-frequency anatomical features in the image can be effectively separated, and high-frequency details of a skeleton region are effectively reserved while the noise reduction quality is remarkably improved.

The present invention relates to a quantitative CT bone density measurement phantom with replaceable calibration solid columns and a supporting method, aiming to solve the problems of insufficient measurement accuracy and lack of personalized adaptability of the existing QCT phantom due to the fixed calibration column design. The phantom includes a main body and a plurality of calibration solid columns, and the main body is provided with at least one card slot, through which calibration solid columns of different density levels can be connected to achieve adaptation to different bone densities. The matching calibration solid column determination method obtains its CT value by scanning a plurality of calibration solid columns made of a mixture of hydroxyapatite powder and polymethyl methacrylate, and then establishes a linear regression model of density and CT value. Combined with the expected density range of the bone to be measured, a suitable calibration solid column is selected for CT scanning, and the actual bone density value of the bone to be measured is calculated based on the regression model. The invention improves the calibration flexibility and measurement accuracy, and can effectively meet the personalized measurement needs of different bone areas.

The present invention relates to the field of image processing, and in particular to a method, system, storage medium and electronic device for optimizing the recognition of bone images. A method for optimizing the recognition of bone images comprises: stacking an abdominal CT image containing a detection frame of a target bone region to obtain a first image; inputting the abdominal CT image into a segmentation model to obtain a rib segmentation result; performing non-intersection filtering based on the first image and the rib segmentation result to obtain a filtering result, and using the filtering result as the recognition result of the target bone region. The present invention can optimize the existing imaging method to make it more intuitive, and can also accurately locate the bone region, thereby increasing the user experience and making it more convenient to know the part of the body where the bone region is located.

The present application relates to a kind of whole guide plate for bone graft sandwich bone grafting simultaneous implantation and manufacturing method, including the implantation guide plate of bone graft and implant, bone graft positioning finishing plate, tooth positioning device of bone area, osteotomy guide plate, tooth bone model of edentulous area, tooth bone model of bone area, the top of the implantation guide plate of bone graft and implant is connected with the bottom of bone graft positioning finishing plate, can be set with the several positioning points corresponding to bone area position in bone area by the guide drill needle hole on bone graft positioning finishing plate, can accurately transplant the bone graft taken to bone area;The osteotomy guide plate can be connected with tooth positioning device of bone area, also can be fixed in bone area according to the several positioning points;The present application can realize accurate, minimally invasive, safe to obtain intraoral autologous bone graft, can provide bone graft acquisition, finishing, implantation and implantation whole process guidance for surgeon, reduce the difficulty of operation, assist surgeon to complete the whole operation more accurately, efficiently, safely.

The application belongs to the technical field of medical devices, and provides a single-knee prosthesis tibial tray and a mounting method, which comprises a prosthesis tibial tray body, a support wing and a support column are arranged on the prosthesis tibial tray body; the support wing is connected with the side wall of the prosthesis tibial tray body, and the support wing is embedded into the non-cutting side of the tibia; the support column is connected with the lower end of the prosthesis tibial tray body, and the support column is embedded into the tibia below the tibial bone cutting surface. The above scheme sets the support wing and the support column on the prosthesis tibial tray body, supports and fixes the prosthesis from two different positions and different directions of the side wall and the lower end, respectively, disperses and transmits the load borne by the prosthesis to the larger bone area of the tibia, effectively increases the stress area, avoids the load concentration in the local area of the tibial cutting surface, and reduces the fracture risk of the tibial cutting surface.

The present invention discloses a bone injury image-assisted detection system based on data analysis, and relates to a bone injury image detection neighborhood. The bone injury image-assisted detection system based on data analysis includes: a data acquisition module for acquiring current bone image data, a region extraction module for performing region extraction on the preprocessed current bone image data to obtain current bone region data, a prediction module for obtaining predicted normal bone region data, a bone injury analysis module for performing feature extraction on the current and predicted normal bone region data respectively to obtain the texture, shape, and density features of the current and predicted normal bone regions, and performing comprehensive analysis to obtain the bone injury type corresponding to the current bone region data. The present invention uses accurate comparison of texture, shape, and density features, so that the system can not only identify the type of bone injury, but also finely analyze the severity of the injury. This in-depth analysis supports doctors to customize personalized treatment plans for each patient.

The invention relates to the technical field of skeleton feature analysis, in particular to a wound positioning and registering method applied to an orthopedic robot-assisted operation. The method comprises the following steps: dividing density distribution of point cloud data in a to-be-positioned region to obtain a skeleton region cluster; screening high-density blocks through high-density distribution of the point cloud data; performing curvature analysis on the spatial local surface based on the high-density block to obtain a local surface feature degree; and combining the distribution density and the local surface feature degree of the point cloud data, determining the angular point distribution importance of different skeleton region clusters, determining the optimized angular point detection number according to the relationship between the expected angular point distribution importance and the detection number, adjusting the point cloud data, and obtaining the optimized point cloud data for registration. According to the method, the curvature and density characteristics of skeleton features in different regions are analyzed to obtain the distribution importance of angular points in the regions, so that the robustness of angular point feature position matching during registration is improved, and the accuracy of registration in a wound positioning process is improved.

The embodiment of the invention provides ultrasonic equipment, a synovitis detection device, electronic equipment and a storage medium. The equipment comprises an ultrasonic probe and a processing device, and the ultrasonic probe is used for collecting a target ultrasonic image at a target joint; the processing device is used for recognizing an articular side bone area and a synovitis area from the target ultrasonic image and determining level information of synovitis based on the position relation between the synovitis area and the articular side bone area when the synovitis area is recognized, and the level information is used for indicating the severity of the synovitis; wherein the joint side bone area is the area where bones located on the two sides of the target joint are located, and the synovitis area is the area generated by synovial hyperplasia or the area generated by synovial hyperplasia combined with hydrops. According to the scheme, the workload of manually determining whether the synovitis area exists or not and determining the level information of the synovitis when the synovitis exists can be reduced, and the obtained information about the synovitis is more accurate.

The invention relates to a bone age prediction method and device, equipment, a storage medium and a computer program product. The method comprises the following steps: acquiring skeleton input data, and preprocessing the skeleton input data to obtain preprocessed skeleton input data; detecting all joints in the preprocessed skeleton input data through a target detection algorithm to obtain a key skeleton region detection result; target joint screening is carried out according to the key skeleton area detection result, and key skeleton joint screening features are obtained; and according to the key bone joint screening features, performing bone age grade prediction through a pre-trained deep neural network model, and outputting a bone age prediction result. By adopting the method, the bone age evaluation efficiency and the bone age evaluation accuracy can be improved.

This invention belongs to the field of medical technology and discloses a rapid bone repair implant manufacturing method based on medical imaging and 3D printing. The method first involves CT scanning of the damaged bone area to obtain image files, then using Mimics software to reconstruct a 3D model. The model is imported into 3-Matics software for preprocessing, and a composite repair algorithm combining mirror symmetry and surface fitting is used to digitally repair the bone defect. The repair model is then converted to STL format and sliced, 3D printed using biocompatible materials, sterilized, and implanted into the patient. The innovations of this invention lie in the collaborative processing of Mimics and 3-Matics software, the composite repair algorithm combining mirror symmetry and surface fitting, and the end-to-end digital solution. This allows for personalized and precise customization of implants, reduces the risk of rejection, significantly improves repair accuracy and manufacturing efficiency, shortens the treatment cycle, reduces medical costs, and shows promising clinical application prospects.

The utility model provides a female rib bone area, including the band main part, and the band main part includes the upper band body, lower band body and first avoiding groove, the upper band body and lower band body all include first fixed end part and second fixed end part, and first fixed end part is detachably connected to second fixed end part, pressurizing spare, pressurizing spare includes two upper pressurizing bands and two lower pressurizing bands, and the middle part of upper pressurizing band and lower pressurizing band is fixed to band main part, and two upper pressurizing bands and upper band body's first fixed end part and second fixed end part are fixed respectively, and two lower pressurizing bands and lower band body's first fixed end part and second fixed end part are fixed respectively, first fixed end part and second fixed end part all have the bionic surface for sticking to human chest and abdomen when the band main part is fixed. The utility model has the effect that after fixing, the chest of human body is not pressed too much, and when the chest cavity fluctuates, the integral deviation at the breaking point is ensured, the misplacement phenomenon does not appear, and the comfort degree of women is higher.

Computer device (33) for determining an appropriate positioning of an instrumentation on a target bone area (200) according to a relative positioning (42) of said instrumentation to said target bone area defined by a surgical planning (32), said device comprising—an interface for receiving from a 3D camera (31) a depth map (41) of a captured scene (310) comprising at least said target bone area; —computing means for determining a position element of said target bone area from said depth map; determining a second positioned shape (442) of said target bone area according to said relative positioning (42), and determining data (43) representative of said appropriate positioning on the base of said second positioned shape (442) and said position element; —a human-machine interface for providing said data.

The invention discloses a differential extrusion unfreezing promoting and residual blood removing device for ham with bones, and belongs to the technical field of meat product processing equipment. The device comprises a flexible crawler belt conveying mechanism, a plurality of groups of difference-adjustable rolling mechanisms and a jacking adjusting mechanism. Each group of difference adjustable rolling mechanism is provided with a self-adaptive variable-diameter roller assembly which is axially divided into a first area and a third area corresponding to a pure meat area and a second area corresponding to a skeleton area, the wheel diameter of the second area is smaller than that of the other two areas in an initial state, and the wheel diameter of a variable-diameter wheel of each area is independently adjustable; large extrusion force can be applied to the pure meat area to promote unfreezing and residual blood discharge, and meanwhile small extrusion force is applied to the bone area to prevent bone fragmentation. The front section of the device is provided with a dual-energy X-ray detection unit for recognizing skeleton distribution and generating differential extrusion parameters, the guide mechanism corrects ham conveying postures, and the industrial problem that broken bones are dispersed due to unified extrusion of hams with bones is fundamentally solved.

A support device adapted to support a biological membrane, for example, for use as a regenerative membrane, the support device comprising a support strip in the form of a long strip extending in a length direction, the support strip including a circular arc surface extending in the length direction to support the biological membrane. The support strip supports the biological membrane by the smooth circular arc surface, and gum in the healing period prevents the support strip from being exposed to the bone area to cause surgical failure. The invention also provides a method of using the support device.

The invention relates to the technical field of fracture reduction assistance, in particular to a long bone fracture reduction method and system based on image processing. The method comprises the following steps: acquiring an upper fracture edge of an upper broken bone area and a lower fracture edge of a lower fracture area in a long bone fracture image, and selecting an upper target base point from the upper fracture edge according to the position and sharpness of an upper edge pixel point of the upper fracture edge; selecting a lower target base point on the edge of the lower fracture according to the position of the upper target base point on the edge of the upper fracture and the relative size of the width of the upper fracture area and the width of the lower fracture area; according to the relative positions of the upper target base point and the lower target base point and the direction trend of the edge of the upper fracture, a reduction path of the long bone fracture is determined; and moving the upper broken bone area along the reduction path to assist the reduction of the long bone fracture. Collision in the fracture reduction process can be avoided, the movement path of the broken bone is shortest, and the reduction effect on the long bone fracture is improved.

The invention discloses a sole structure and a footwear product. The sole structure comprises an upper insole, a lower insole, an outsole and a reinforcing plate. The lower-layer insole comprises a first supporting module, a second supporting module and a third supporting module which are separated from one another, and the compression deformation rate of the first supporting module located on the outer side of the half sole is lower than that of the second supporting module located on the inner side. The reinforcing plate is arranged between the upper insole and the lower insole, and the reinforcing plate is provided with a straight section in a linear form corresponding to the foot metatarsal bone area. The bottom face of the second supporting module forms an arc-shaped rolling contour, and the lowest point, tangent to the horizontal plane, of the second supporting module is arranged behind the straight section of the reinforcing plate. And meanwhile, the first supporting module and the straight section of the reinforcing plate are at least partially overlapped in the vertical direction. The sole structure can solve the problems that natural torsion of the foot of a half sole landing runner is insufficient, and energy feedback is weak at the moment of stepping on the ground.

The invention relates to a hearing aid intended to be placed around an ear of a user, characterised in that it comprises at least one first bone conduction device and at least one second bone conduction device, the first device being configured to be positioned in contact with a first bone area of the user's head and to transmit first vibrations to said first bone area, and the second device being configured to be positioned in contact with a second area of the user's head and to transmit second vibrations to said second bone area, said second area being different from the first area, and said first bone area and said second bone area being located around the same ear of the user, said hearing aid further comprising at least one microphone for picking up an ambient sound signal which is then transformed to generate the first and second vibrations.

The invention provides an evaluation method and device for femoral tunnel positioning accuracy after ACL reconstruction. The evaluation method comprises the steps that a preoperative intercondylar fossa outer side wall three-dimensional model is reconstructed according to a preoperative CT image of a knee joint of a patient, and a compact bone area is marked; reconstructing a postoperative intercondylar fossa outer side wall three-dimensional model according to the CT image of the knee joint of the same postoperative patient, and extracting a femoral tunnel prepared by taking a dense bone region as an anatomical marker at a femoral tunnel portal of the intercondylar fossa outer side wall; calculating the overlapping ratio of the femoral tunnel portal and the dense bone area; judging whether the overlapping rate is higher than a preset threshold, and if yes, judging that the femoral tunnel is successfully positioned; and if not, determining that the femoral tunnel positioning fails. Based on objective analysis of a compact bone area, whether femoral tunnel positioning succeeds or not can be accurately evaluated, the tunnel deviation degree can be visually reflected through quantitative evaluation of the overlapping rate, then the postoperative stability and clinical prognosis are predicted, the requirements of evidence-based medicine are met, and good clinical application prospects are achieved.

The invention relates to the technical field of image enhancement, in particular to an auxiliary puncture method for a subacromion gap under ultrasonic guidance, which comprises the following steps of: firstly, determining a self-adaptive cutting scale according to the puncture depth of a needle head at different sampling moments by considering that the deeper the puncture of the puncture needle head is, the higher the control precision requirement on the needle head is; determining corresponding initial saliency according to skeleton gray features and skeleton edge features represented by each cut local image region; further determining a saliency weight representing a segmentation scale segmentation effect according to the saliency deviation between each local image region and the adjacent region; therefore, the skeleton region needing to be enhanced is screened out based on the initial significance and the final significance determined by the significance weight, local image enhancement is carried out according to the skeleton region, and an enhanced shoulder ultrasound image with a better enhancement effect is obtained. And the effect of real-time auxiliary puncture of the subacromion gap according to the enhanced shoulder ultrasonic image is better.