84 results about "Fracture line" patented technology

The invention relates to the technical field of medical apparatus and instruments, in particular to a multi-dimensional adjustable traction device for pediatric orthopedic nursing, which comprises a bottom plate and further comprises a shaking assembly connected to the bottom plate; the bed frame is connected to the output end of the rocking assembly, an upper lying plate and a lower lying plate which can rotate are connected to the bed frame, and the same mattress is placed on the upper lying plate and the lower lying plate; and the traction mechanism comprises a fixing assembly and a traction assembly. The traction mechanism and the fixing assembly are arranged to limit the legs of a pediatric patient, injury and pain caused by leg movement of the patient are relieved when the patient is nursed, the direction of traction force is the same as the direction of a fracture line, and a good treatment effect is guaranteed; the bed frame is driven by the shaking assembly to slightly shake front and back, the mood of a child patient is pacified, the metal block which is magnetically locked is kept stable relative to the bed frame, and traction stability is kept.

The invention relates to the technical field of medical image diagnosis, and discloses a tooth and fracture line recognition treatment method based on the combination of an AI technology and a CBCT image, and the method comprises the steps: obtaining and preprocessing the CBCT image, and carrying out the multi-scale analysis and recognition of a tooth structure, a microcrack and a fracture line through a first AI model. And the second AI model combines the identification result and the patient characteristics, and generates a personalized treatment scheme through multi-objective optimization. Clinical feedback is used for continuously iteratively optimizing double models, and the diagnosis and treatment precision and effect are improved. The system comprises an image data acquisition unit, an image data preprocessing unit, a tooth and fracture line identification unit, a personalized treatment scheme generation unit and a feedback and optimization unit. Through AI and CBCT image fusion, accurate identification of teeth and fracture lines is realized, a personalized treatment scheme is recommended in combination with individual features of a patient and a multi-objective optimization algorithm, rapid response is realized, a closed-loop feedback mechanism continuous optimization model is established, and diagnosis and treatment precision, efficiency and individualization level are remarkably improved.

The invention relates to the technical field of bone joint X-ray image segmentation, in particular to a bone joint X-ray film tiny fracture automatic identification method based on edge detection. The method comprises the following steps: acquiring a bone joint surface edge coefficient according to gray distribution and gradient distribution of pixel points in a bone joint X-ray image, and further acquiring a bone joint region; obtaining a weak edge coefficient of the edge region according to the distribution of edge pixel points in the region; obtaining the number of fused pixel points of the outer side pixel points according to the gray difference between the inner and outer side pixel points and the outer side adjacent pixel points in the edge area; combining the weak edge coefficient to obtain a fusion coefficient of the edge region; and the tiny fracture is positioned according to the fusion coefficient of the marginal area in the bone joint layering. According to the invention, the fracture line generated by the tiny fracture can be identified, so that related personnel can accurately identify the tiny fracture area appearing in the body of a patient.

The invention relates to the technical field of orthopedic surgery, and discloses an orthopedic surgery real-time navigation system based on multi-modal image fusion and artificial intelligence. The multi-modal image fusion module is used for generating a three-dimensional skeleton and soft tissue fusion model for surgical navigation; the artificial intelligence analysis module is used for determining a fracture line, a screw implantation angle and a cutting track; the intraoperative tracking module is used for generating a real-time correction instruction; the verification updating module is used for carrying out rationality verification on the real-time correction instruction; if the inspection is not passed, an alarm mechanism is triggered, instantaneous motion state parameters of the surgical instrument are collected, the instantaneous motion state parameters are compared with the cutting track, and the correction instruction is updated according to the comparison result; and the execution module is used for driving the surgical instrument to execute the surgical operation according to the updating correction instruction. According to the invention, manual operation errors can be effectively reduced.

The application discloses a method, device and storage medium for determining a growth stage of strike-slip structure, and the method comprises the following steps: obtaining a planar image of a fracture structure pattern of a region, and determining a straight line corresponding to each fracture line in the planar image; determining an included angle between adjacent straight lines, and determining a standard deviation of the included angles according to the included angles, wherein the included angle is an acute angle; and determining a growth stage of the strike-slip structure of the region according to the standard deviation of the included angles. The application discloses a method for determining a growth stage of strike-slip structure in a unified and objective manner.

A femoral intertrochanteric fracture opening system is characterized by comprising a sleeve, a hollow sleeve core and a hollow trephine, an impact portion is arranged at one end of the sleeve, a plurality of sawteeth are arranged on the outer ring of the end of the other end of the sleeve, the inner diameter of the sleeve is the same as the outer diameter of the hollow sleeve core, a center hole is formed in the center of the hollow sleeve core, and the hollow trephine is arranged in the center hole. The sleeve is limited and fixed through the hollow sleeve core, and the hollow trephine is limited through the sleeve and the positioning guide pin, so that the accuracy of the opening position is ensured; according to the utility model, the trephine is used for opening, the force is uniform when the trephine is used for opening, and the outer surface of the trephine does not have the situation that the size of the outer surface of a conical drill is always changed, so that the situation that bone blocks on two sides of a fracture line are extruded in the opening process is avoided, and the serious defect that the bone can be extruded open by a traditional drill bit is overcome.

The invention discloses an intramedullary nail system which comprises a main nail and a locking piece, and a nail locking hole is formed in the main nail; the locking piece comprises a connecting part and a plurality of bone plates, the connecting part comprises at least one connecting block, the connecting blocks and the bone plates are integrally connected in a one-to-one correspondence mode, during implantation, after the bone plates penetrate through the lock nail holes, the connecting part penetrates through the lock nail holes of the main nail, when the number of the connecting blocks is larger than one, all the connecting blocks are spliced into the connecting part, and when the number of the connecting blocks is one, the connecting part is spliced into the main nail. The connecting block is a connecting part, and at least part of each bone plate is attached to the bone substance. According to the intramedullary nail, the locking pieces are fixed to the two sides of the fracture line, the firmness degree of fixing the fracture broken end through the intramedullary nail can be increased, stable internal fixation is achieved, and displacement of the intramedullary nail is prevented; the problem that the intramedullary nail is difficult to take out later is solved, and the influence of stress shielding can be reduced.

The invention relates to the technical field of tectonic geology research, and discloses a strike-slip-extension tectonic displacement proportion determination method and device and electronic equipment. The method comprises the following steps: identifying a stretching fracture and a strike-slip fracture based on data; connecting fracture end points, and bending fracture line segments; counting the number e of stretching fractures and the number s of strike-slip fractures; calculating a quantity ratio x, wherein x = s / e; and according to a function analysis method and / or an interval judgment method, determining a strike-slip-extension displacement proportion n based on the x value. According to the technical scheme, the ratio of the strike-slip displacement to the extension displacement in the strike-slip-extension structure can be quantitatively analyzed by analyzing the corresponding relation between the number ratio of the strike-slip and the extension fractures in the same period of the area and the ratio interval of the strike-slip displacement to the extension displacement; according to the method, quantitative analysis can be accurately carried out on the ratio of the displacement amounts with different properties, so that a basis is provided for analyzing the displacement amounts with different properties of a complex structure belt and defining main control factors of regional deformation.

The utility model discloses a locking screw and bone fracture plate locking structure, which comprises a screw and a bone fracture plate, the screw comprises a fixing screw and an adjusting screw, the bone fracture plate is symmetrically arranged, the bone fracture plate comprises a first plate body and a second plate body, the center of the surface of the first plate body and the center of the surface of the second plate body are respectively and fixedly provided with a screw joint block, and the screw joint blocks are connected with the first plate body and the second plate body. The screw joint block is of a cuboid structure, a vertical penetrating hole and a transverse penetrating hole are formed in the screw joint block and are perpendicular to each other, an internal thread is arranged in the transverse penetrating hole of the screw joint block in the center of the first plate body, and the internal thread is matched with a thread of the adjusting screw. By screwing the adjusting screw, the first plate body is driven to be close to the second plate body for pressurization, so that the fracture line is closed, and in the treatment process, a doctor can regularly adjust the pressure so as to ensure that the pressure applied to the fracture part is appropriate, and the possibility of compression necrosis of the fracture end caused by overlarge pressure is prevented.

Method and apparatus are provided for assisting with bone fracture detection. In particular, image data of a medical image is received in a processing unit from a device, which may be an imaging device, a data detection device or an image storage device. A bone structure is identified in the medical image. A fracture line in the identified bone structure is determined. A bone feature, which may include a portion of an outline of the identified bone structure, a point of the fracture line on an outline of the identified bone structure, a relative displacement of bone parts of the identified bone structure, or a combination thereof is detected. The bone feature may be classified and a corresponding output generated.

The application provides a microseismic monitoring rock burst working face overburden fracture line position intelligent identification method, and relates to the technical field of rock burst. After normal mining of the working face, the inclination length of the whole working face is selected as a statistical interval, and a "unit length" is determined. Then, a fitting curve of the working face overburden fracture line is determined, the microseismic event cumulative frequency and cumulative energy of the microseismic event in the inclination dimension during the working face advancing and mining process are determined, and then the microseismic cumulative frequency curve and cumulative energy curve of the working face inclination dimension are determined. Then, a working face overburden fracture line position prediction model is established. Finally, the working face overburden fracture line position prediction model is used to predict the overburden fracture line position of the new working face. The method combines the working face overburden fracture height with the frequency and energy of the microseismic signal, quantitatively characterizes the working face overburden fracture height, and determines the rock burst working face overburden fracture line position.

The invention discloses an emergency reduction device for open tibial fractures, comprising a support body and a detachable traction reduction mechanism fixed on the support body. The patient lies flat, and the patient's feet are fixed on the lower support section. By controlling the lower support section to move away from or close to the middle support section, the fracture can be reduced and the length of the lower limb can be restored. The lower support section can rotate left and right relative to the main body, and the rotation adjustment makes the patient's toes face upward, so as to correct the internal rotation or valgus deformity of the broken bone at the distal end of the fracture line; then the proximal end of the lower support section is driven to rise, so that the patient is in a knee flexion state, so that the patient's patella faces upward, and the internal rotation or valgus deformity of the broken bone at the proximal end of the fracture line can be corrected during the knee flexion process. The three-dimensional traction frame acts on the traction pin, and by pulling the traction pin up and down and left and right, the lateral angular deformity and the anterior-posterior angular deformity of the proximal and distal ends of the fracture line can be traction-reduced.

The invention relates to an orthopedic fixation system used to bring together and stably fix bone segments located on either side of the fracture line (11). The system includes a plate (6) to bridge the fracture line (11), a compression socket (7) created on the plate (6), and a compression screw (1) that can be anchored to the bone. The compression threads (2) on the head of the compression screw (1) are arranged to engage with the corresponding compression socket threads (8) on the compression socket (7); the conical section (3) under the head of the compression screw (1) moves on the opposing conical section (9) in the compression socket (7).By rotating the compression screw (1) through its connection socket (4), the compression threads (2) on the screw head advance in successive steps on the compression socket threads (8), creating a relative movement between the bone-anchored compression screw (1) and the plate (6) to close the fracture line (11), thus providing controlled and incremental compression. In this way, the compression function can be performed through the same compression screw (1) that remains in the implant without requiring a separate temporary pinion or compression device; the amount of compression can be determined depending on the tooth increments and can be increased with additional increments if necessary.

The present invention provides an adjustable bone plate assembly, which belongs to the field of medical device technology. The adjustable bone plate assembly includes: a bone plate, including a bone plate body and a connecting end; a connecting structure, including at least two connecting parts each provided with a through hole, each of the connecting parts being hinged to the connecting end of a different bone plate; the connecting end is in a U-shaped fork structure, including two connecting plates that are parallel to each other and spaced apart, and the connecting parts can pass through the connecting plates. The bone plates of the present invention can be assembled and spliced arbitrarily, solving the problem that there are no matching bone plates for special fracture lines and that existing bone plates cannot be shaped at large angles. At the same time, because the bone plates can be combined and are universal, the supplier's inventory can be reduced.

The present invention specifically discloses a minimally invasive calcaneal distraction device, including a distractor, wherein the distractor includes an outer sleeve and an inner sleeve rod, the outer sleeve is provided with a sleeve, the inner sleeve rod passes through the sleeve, and the inner sleeve rod moves along the length direction of the sleeve, the outer sleeve is used to hold the calcaneal tuberosity fracture fragment, and the tail end of the inner sleeve rod is used to support the truncal process fracture fragment; the minimally invasive calcaneal distraction device of the present invention achieves the purpose of distracting the fracture line between the calcaneal tuberosity fracture fragment and the truncal process fracture fragment, and restores the connection height between the calcaneal tuberosity fracture fragment and the truncal process fracture fragment to the original height, has a simple structure, is convenient for single-person operation, and reduces the operating space.

A hair implant suitable for subcutaneous implantation is provided having an anchor comprising an anchor body, and at least one collagen receiving structure selected from the group consisting of at least one tunnel disposed through the anchor body and an external surface feature of the anchor body. The anchor further comprises at least one hair strand projecting from a distal end of the anchor body, wherein the at least one collagen receiving structure is configured to support collagen ligature growth after subcutaneous implantation of the hair implant to anchor the anchor to a hair implant recipient, and the collagen receiving structure is free of hair. A fracture line in the anchor body allows the body to fragment, thereby releasing collagen ligatures and allowing the implant fragments to “release” and fall out of the skin. The at least one hair strand may comprise a primary hair element with emerging hair elements.

A cutting apparatus and method are disclosed to form the preferential fracture line of a capsule for closing containers, in which a rotating carousel carries a plurality of spindles, each of which can engage a respective capsule that is rolled against a contact surface made of ultra-high molecular weight polyethylene, and in which a fixed blade with a circular sector performs the cut on the rolling capsule, the cutting apparatus and method being applicable to capsules of different dimensions and types.

The invention discloses an intramedullary nail for outer side wall smashing type femoral intertrochanteric fracture, and belongs to the field of medical instruments, the intramedullary nail comprises a main nail, the main nail is connected with a tension bolt through a duct adjusting mechanism, and the main nail is provided with a lock nail; the hole channel adjusting mechanism is arranged on the main screw and used for adjusting the neck-shaft angle of the lag screw, the hole channel adjusting mechanism adjusts and changes the installation angle of the lag screw on the main screw through the structure of the hole channel adjusting mechanism, and then adjustment of the neck-shaft angle of the lag screw is achieved. The lag screw can cross the outer side wall to crush a fracture line, the problem of supporting failure caused by the fact that the screw penetrates through the fracture line in traditional fixation is avoided, meanwhile, the tip end of the lag screw is more accurately embedded into a main pressure bone small beam column (PCS) at the proximal end of the femur, and the holding force of the screw to the femoral head is improved; the main nail and the femoral shaft are tightly fixed through transverse locking, and rotation and axial displacement of the main nail in the medullary cavity are limited.

The invention discloses a rib fracture CT image intelligent detection system based on deep learning. The system comprises a rib CT image acquisition module, a tissue adaptive progressive enhancement module, a density threshold dynamic adjustment module, a CT perception loss constraint module, a rib CT image detection model design module and a rib fracture CT image detection module. The invention belongs to the field of image processing, and particularly relates to a rib fracture CT image intelligent detection system based on deep learning. According to the scheme, a tissue self-adaptive progressive enhancement mechanism is designed, fracture line features are gradually enhanced, and overexposure caused by single-time strong enhancement is avoided; a density threshold value dynamic adjusting mechanism is designed, and the density difference between the fine fracture and the cancellous bone is further expanded; by designing a bone tissue feature enhancement activation function, insufficient rib CT feature response is avoided; solving skewed distribution of rib fracture data based on skewed feature equilibrium loss design; and the final rib fracture CT image detection effect is improved.

The application provides a kind of jaw face old fracture oriented osteotomy and reduction planning method, surgical robot system, electronic equipment and storage medium, S1: scanning obtains the medical image data of target human bilateral jaw face and dental arch scanning data, and identification generates 3D skeleton model and callus model;S2: based on 3D skeleton model and callus model, through callus influence factor and machine learning algorithm, the fracture line position of target human jaw face is inferred, and osteotomy line model is generated;S3: based on callus model and osteotomy line model, simulate planning callus removal area, removal path and removal depth;S4: based on the jaw face skeleton segment model of target human simulation osteotomy, healthy side jaw face medical image data and dental arch scanning data, through multi-objective optimization algorithm, generate bone reset path, to realize medical image data identification and analysis, automatic generation of surgical planning and robot-assisted surgery based on artificial intelligence technology and other functions.

The utility model discloses a screw for bone implantation. The nail comprises a rod part and a nail head part and is provided with a through hole penetrating through the rod part and the nail head part, a threaded structure is arranged on the outer side of the rod part, one end of the rod part is fixedly connected to the nail head part, the part, located at the other end of the rod part, of the through hole is a first stepped hole, and the size of the cross section of the first stepped hole is sequentially increased in the direction pointing to the nail head part. A first threading hole communicated with the first stepped hole is formed in the outer side wall of the rod part, and a second threading hole communicated with the through hole is formed in the outer side wall of the nail head part. Through the arrangement, after the rod part penetrates through the fracture line to fix the fracture of the backbone part, a plurality of fragmented epiphysis can be fixed in the mode that the suture penetrates through the first threading hole and the second threading hole, the backbone part and the fragmented epiphysis are well fixed and spliced, the application range is expanded, and the cost is saved. Through cooperation of the positioning device and the first stepped hole, inclination or deviation of the screw for bone implantation can be avoided, and the operation efficiency and the success rate are improved.

The invention relates to a method for processing a component (1) which has at least one through-opening (2) for receiving a further component (3). In a process step, at least one fracture joint is created in the component (2), so that at least two fracture surfaces (7a, 7b) are produced in the component (1). The invention proposes that the fracture separation is carried out in such a way that the component (2) remains a single component even after the fracture separation. The invention further relates to a component which can be manufactured by the method and to a motor vehicle with at least one such component.

The utility model discloses a wear-resistant anti-fracture cable, which relates to the technical field of cables, and comprises a cable mechanism, a storage mechanism, a fixing mechanism and the like, the device is provided with the storage mechanism for placing the cable into a storage cavity for closed storage, and because the cable is not exposed outside, dust cannot fall on the surface of the cable, so that the cable is prevented from being damaged. A user does not need to clean the surface of the cable, meanwhile, the cable is not exposed outside for a long time, aging of the cable can be reduced, the service life of the cable is prolonged, a plurality of evenly-distributed reinforcing ribs are further arranged in the nylon braid layer of the cable, the anti-pulling effect of the cable is enhanced, the cable is prevented from being broken, and the service life of the cable is prolonged. And meanwhile, the plug is slidably arranged between the two first clamping plates, so that the height of the plug can be adjusted to adapt to charging interfaces with various heights, and the application range of the device is enlarged.

The application provides a femur implant biomechanics test assembly method, and belongs to the technical field of bone implant tests, and comprises the following steps: fixing a sawbone bone by using a fixing mechanism, establishing a coordinate and adjusting the position of the sawbone bone according to the coordinate, simulating implantation of a bone plate and a screw by using software, drilling a hole according to a simulation result, fixing the bone plate and the screw, cutting a fracture line on the sawbone bone by using a cutting mechanism, and embedding and treating the sawbone bone by using a dental base powder after implantation of the bone implant is completed, so that an embedding tool is connected to both ends of the sawbone bone, and the assembly is completed. The application calibrates the position of a three-dimensional model and a real object by using a coordinate point, and reversely pushes the screw and the bone plate to an assembly position by using the three-dimensional model, so that the difference between a real assembly structure and a three-dimensional model assembly structure can be greatly reduced, errors caused by manual assembly can be avoided, and the rigor of biomechanics tests can be improved.

The invention relates to an automatic detection method for child mandible fracture based on multi-scale feature optimization. The automatic detection method comprises the following steps: 1, constructing a model; 2, data preparation and preprocessing; step 3, training optimization; 4, performing model evaluation; according to the method, the significance of the fracture line is enhanced through multi-layer feature fusion, the detection precision under small targets and complex scenes is improved, false detection and missing detection are reduced, and an efficient and reliable auxiliary diagnosis tool is provided for clinic.

Hydrocarbon reservoir development that includes determining, based on fracture data, a two-dimensional (2D) fracture model including fracture lines representing locations of fractures in the reservoir, determining, based on the lines, a fracture density index (FDI) map including FDI values for cells representing the reservoir, including, for each cell, determining a FDI value based on proximity to the fracture lines, determining a circulation loss (CL) map including CL values for the cells, including, for each cell, determining a CL value based on proximity of the cell to locations of circulation loss events in the hydrocarbon reservoir, determining, based on the FDI map and the CL map, a correlation of FDI to CL for the reservoir, and drilling a hydrocarbon well based on the correlation.

The utility model discloses a double-layer easy-to-tear packing box which comprises a top piece, a first side piece, a bottom piece and a second side piece, a first end piece and a second end piece are arranged at the two ends of the top piece, and the first side piece, the second side piece, the top piece, the bottom piece, the first end piece and the second end piece are matched together to form a box body. The top piece and the first side piece are provided with a first easy-to-tear fracture line, the first easy-to-tear fracture line is a half-square-shaped first easy-to-tear fracture line, one end of the covering piece is provided with a fracture piece, the other end of the covering piece is connected with the second side piece, and the second side piece is provided with a second easy-to-tear fracture line. And a partial area of the fracture piece is bonded and matched with the second side piece. Compared with the prior art, the packaging box has the advantages that the inner easy-to-tear layer is formed by the top piece and the first easy-to-tear line on the first side piece, the outer easy-to-tear layer is formed by the covering piece and the breaking piece, only when the inner easy-to-tear layer and the outer easy-to-tear layer are torn, the whole packaging box can be in a torn state, and reliability is higher.

The invention provides an osteotomy and reduction planning method for old maxillofacial fracture, a surgical robot system, electronic equipment and a storage medium, S1, scanning to obtain maxillofacial medical image data and dental arch scanning data on both sides of a target human body, and identifying to generate a 3D skeleton model and a callus model; s2, on the basis of the 3D skeleton model and the callus model, the fracture line position of the maxillofacial region of the target human body is inferred through callus influence factors and a machine learning algorithm, and an osteotomy line model is generated; s3, based on the callus model and the osteotomy line model, simulating and planning a callus removal area, a removal path and a removal depth; and S4, based on the maxillofacial region skeleton segment model after the target human body simulates osteotomy, the healthy side maxillofacial region medical image data and the dental arch scanning data, generating a skeleton reduction path through a multi-target optimization algorithm. Therefore, the functions of medical image data identification and analysis, automatic surgical plan generation, robot-assisted surgery and the like based on the artificial intelligence technology are realized.

The utility model provides a rolling piece capable of blocking the inner extension of a cut crack, which is characterized in that a blocking line is additionally arranged at the cut position of the rolling piece to solve the problem that the tear generated by cutting extends inwards. The rolling part is in a shape like a Chinese character'ri 'or a shape B formed by rolling a steel belt, and the section of the rolling part is in a shape like a Chinese character'ri' or a shape B. A cross beam is arranged in the middle of the rolling part. A first process cut-off hole, a second process cut-off hole and a third process cut-off hole are respectively formed in the middle of the left side wall of the rolling part, the middle of the cross beam and the middle of the right side wall of the rolling part, and the first process cut-off hole, the second process cut-off hole and the third process cut-off hole are positioned at the same horizontal position; blocking lines are further arranged, each blocking line is in a concave groove shape, and the blocking lines are located at the corners where the cross beam is connected with the upper side wall and the lower side wall and symmetrically distributed on the front side and the rear side of the second process cutting hole. According to the rolling part capable of blocking and cutting off the inner extension of the crack, the thickness of the plate of the rolling part is t, and the depth of the blocking line is 0.3-0.8 t.

The invention discloses a fracture X-ray film AI auxiliary diagnosis system. The system adopts a deep learning architecture based on a convolutional neural network, and comprises an image preprocessing module, a deep learning recognition module, a diagnosis result output module and a user interaction interface module. The image preprocessing module carries out de-noising processing by combining adaptive median filtering with a bilateral filtering technology, and an improved Canny edge detector is combined with a deep learning edge enhancement network to identify skeleton features. The deep learning recognition module constructs a feature extraction network based on a ResNet-50 pre-training model, and adopts a weighted cross entropy loss function and an Adam optimizer for training. And the diagnosis result output module generates a visual fracture line label by applying a gradient weighted class activation mapping technology, and automatically generates a structured report containing fracture types, severity evaluation and diagnosis and treatment suggestions. The system supports DICOM and JPG format image input, the diagnosis accuracy reaches 78%-80%, and the fracture diagnosis efficiency and accuracy are remarkably improved.