24 results about "Thoracic bone" patented technology

The invention belongs to the technical field of medical imaging and digital twinning, and discloses a thoracic cavity whole organ system level lung four-dimensional EIT detection digital motif and a library building method, and the method comprises the following steps: S1) segmenting multiple organs such as double lungs, heart, sternum, rib and thoracic vertebra central axis skeleton, main bronchus and esophagus based on an individual CT image, and building a three-dimensional geometric model integrated with an EIT electrode array; s2) simulating breathing dynamic deformation by using a solid mechanical model; s3) establishing a coupling relationship between deformation and conductivity, and generating dynamic three-dimensional conductivity distribution; s4) solving an electromagnetic field positive problem, and generating a virtual EIT voltage database synchronous with respiration; the invention also covers pathological model integration and data enhancement strategies. According to the method, a high-fidelity, large-scale and diversified EIT virtual data set can be generated, core data support is provided for training and verifying an AI intelligent reconstruction algorithm, and a model foundation is laid for developing a lung function dynamic digital twinning system.

The invention provides a collision dummy, relates to the technical field of collision dummies, and can improve the reliability of collision test data. A thoracic section spine structure of the collision dummy comprises at least two first rigid thoracic vertebra pieces and at least two flexible thoracic vertebra pieces, the first rigid thoracic vertebra pieces and the flexible thoracic vertebra pieces are alternately arranged in the extending direction of the thoracic section spine structure and are sequentially connected end to end, and rib pieces are fixedly connected with the first rigid thoracic vertebra pieces. The rib parts and the first rigid thoracic vertebra parts are arranged in a one-to-one correspondence mode, and the at least two rib parts are slidably connected with the sternum part in the extending direction of the thoracic segment spine structure. According to the collision dummy provided by the invention, compression and extension of the flexible thoracic vertebra piece enable the thoracic segment spine structure to generate motions such as bending, extension and lateral bending, so that the collision dummy can generate responses such as forward bending, backward bending and lateral turning, and the injury condition of the collision dummy in collision is relatively consistent with the injury condition of a real human body; the reliability of collision test data can be improved.

The application provides a crash dummy, and relates to the technical field of crash dummies, and can improve the reliability of crash test data. A chest segment spine structure of the crash dummy comprises at least two first rigid thoracic vertebra pieces and at least two flexible thoracic vertebra pieces, the first rigid thoracic vertebra pieces and the flexible thoracic vertebra pieces are alternately arranged along the extension direction of the chest segment spine structure and sequentially connected in a head-to-tail mode, a rib piece is fixedly connected with the first rigid thoracic vertebra piece, the rib piece is arranged in one-to-one correspondence with the first rigid thoracic vertebra piece, and the at least two rib pieces are all slidably connected with a sternum piece along the extension direction of the chest segment spine structure. The compression and expansion of the flexible thoracic vertebra piece enable the chest segment spine structure to produce bending, stretching and lateral bending movements, the crash dummy can produce forward bending, backward bending and lateral turning responses, the injury condition of the crash dummy in a crash is consistent with the injury condition of a real human body, and the reliability of crash test data can be improved.

This application discloses a method, device, equipment, and medium for early warning of tonic-clonic epilepsy. The method includes the following steps: deploying EEG electrode monitoring groups in the left and right ears, and deploying myoelectric electrode groups along the sternal manubrium-xiphoid process line in the chest; calculating the thoracic muscle tonic index based on the root mean square of the first envelope signal and the proportion of time above the individual baseline threshold; if the thoracic muscle tonic index exceeds a specified threshold, a tonic-clonic epileptic seizure is preliminarily determined; enhancing the second envelope signal and calculating the maximum time-delay correlation coefficient based on the second and third envelope signals; if the maximum time-delay correlation coefficient exceeds a specified threshold, a tonic-clonic epileptic seizure is finally determined, and an alarm is issued. By using step-by-step electrode judgment to save energy and combining multimodal synchronization discrimination, the false alarm rate is reduced. By fusing time-domain and cross-modal synchronization indicators and employing hierarchical confirmation logic, the specificity for the tonic phase and the ability to resist motion artifacts are improved.

The invention relates to an anatomical localisation device (2) and method. The method comprises: obtaining an image (IM1) of a patient (UR2); detecting at least two first anatomical points (PT1) associated with the skull of the patient; determining a first value (V1) representative of a reference distance (D1) separating the two first anatomical points; detecting two second anatomical points (PT2) associated with the shoulders of the patient; locating a midsternal line equidistant from the second anatomical points (PT2), wherein the midsternal line intersects, at a point of intersection, a segment defined by the second anatomical points (PT2); and determining co-ordinates (C1) of at least one target anatomical point (PT3) by calculating second distances (D2x, D2y) from the at least one target anatomical point to the point of intersection, wherein the second distances are determined on the basis of the first value (V1).

The utility model discloses a bone drill, which relates to the technical field of medical instruments, and comprises an operation assembly, an operation shell, a worm and a driving shaft which are rotatably connected in the operation shell, a worm gear which is fixedly connected on the driving shaft and is meshed with the worm, a workpiece and a driving part which are arranged on the driving shaft, and a handheld assembly, a linkage assembly and a driving assembly. The anti-falling bone drill screw is reasonable in design structure, the push-pull block and the connecting plate in the anti-falling assembly are ingeniously matched, it is guaranteed that the bone drill screw cannot fall off accidentally in the installation process, the anti-falling bone drill screw is especially important for sternum internal fixation, and due to the fact that the internal space of the thoracic cavity is narrow, once the screw falls off, serious complications such as heart or great blood vessel injury can be caused. Therefore, the safety and the success rate of the operation are remarkably improved, the anti-falling device can be pushed backwards to be withdrawn during drilling, operation accidents are reduced, the operation safety is improved, and the operation efficiency is improved.

The invention discloses a cardiac surgery post-operation sternum cracking prevention fixing band, and relates to the technical field of thoracic surgery medical supplies, the cardiac surgery post-operation sternum cracking prevention fixing band comprises an elastic band, two sides of the elastic band are fixedly provided with binding bands, opposite ends of the two binding bands are connected, the outer sides of the binding bands are movably provided with limiting parts, and the limiting parts are fixedly connected with the elastic band. An adjusting frame is fixedly mounted in the center of one side of the tightening belt, a mounting groove is formed in the front side of the adjusting frame, a threaded lead screw is rotationally arranged in the mounting groove in the vertical direction, and the threaded lead screw is sleeved with a nut in a threaded mode; by rotating the twisting block, the twisting block can drive the threaded lead screw to rotate, so that the nut drives the limiting piece to move up and down until the limiting piece moves to one side of the sternum located at the wound of a patient, the sternum with the wound can be effectively limited, the sternum cracking prevention effect is achieved, and due to the arrangement of a small number of binding belts, the manufacturing cost can be saved, and the cost is reduced. And the wound sternum can be accurately positioned.

The utility model provides a retractor for thoracic vertebra surgery, and belongs to the field of medical instruments. The retraction device comprises a holding part, an extension part; the bending part is a hook-shaped bending plate, the short edge of the bending part is connected with the extension part, and the tail end of the long edge and the tail end of the bulge at the hook-shaped bottom are respectively positioned on two sides of the plane where the extension part is positioned; the retraction part is connected with the long edge of the bending part, the retraction part is in a plate shape and is parallel to the extension part, the tail end of the retraction part laterally extends to form a clamping block, the extending direction of the clamping block and the extending direction of the long edge of the hook-shaped bending part both face the same side face of the extension part, and a clamping groove matched with the thoracic vertebra T1 and / or the thoracic vertebra T2 is formed in the clamping block in a concave mode. According to the retractor, through the design of the bending part and the retractor part, in the anterior or anterior-posterior joint operation of the cervical-thoracic vertebra joint part or the upper thoracic vertebra, the retractor avoids the clavicle or the sternum handle, and the trachea, the esophagus and the blood vessel blocked in front of the thoracic vertebra are pushed aside, so that the visual field is exposed to facilitate the operation.

The utility model relates to the field of medical teaching equipment, in particular to a newborn model which comprises a baby model body, an umbilical cord model and a catheterization module. The baby model main body comprises a simulated head and neck part, a simulated trunk part and simulated limbs; the simulated head comprises a simulated skull, a simulated nasal cavity, an oral cavity, a tongue, a trachea and an esophagus which conform to the anatomical structure position of a human body; the simulated trunk part comprises a simulated thorax, a simulated sternum, a pressing module and an embedded plate; the umbilical cord model is arranged on one side, close to the urethral catheterization module, of the embedded plate; the umbilical cord is separated from the baby model main body, so that the umbilical cord is convenient to replace, and the cost is saved; skill operation of umbilical cord infusion is realized; the pressing module and the catheterization module are arranged in the baby model main body, so that the training of first-aid skills and catheterization skills is realized.

This application relates to a method, apparatus, computer device, storage medium, and computer program product for processing fetal cardiac ultrasound images. By performing target segmentation processing on the acquired target four-chamber ultrasound cross-sectional image, atrial septum contour data, ventricular septum contour data, spinal contour data, and thoracic cavity contour data are obtained. These data are used for fitting the first and second cardiac axes, thereby achieving automatic measurement of the cardiac axis, i.e., the angle between the direction of the fetal heart apex and the line connecting the spine and sternum. Compared with manual tracing measurement, this method is less affected by clinical experience and other subjective factors, greatly improving measurement accuracy. It is suitable for prenatal ultrasound examinations and helps doctors quickly classify and judge fetal four-chamber ultrasound cross-sectional images, improving the efficiency of doctors' examinations.

The application discloses a postoperative remote monitoring and rehabilitation system for thoracic surgery patients based on informatization, and relates to the technical field of postoperative monitoring.The system solves the technical problems that traditional monitoring cannot perceive the stress problem of sternal incision caused by improper posture, lacks real-time early warning models based on electrocardio characteristics, is difficult to discover acute events in time, and is difficult to make rehabilitation plans fit the actual situation, easily causes blind decision-making and cannot be dynamically adjusted due to fixed grouping, non-causal models and lack of optimization algorithms.The system dynamically correlates the body position angle and the thoracic pressure, calculates the thoracic load index and the sternal incision stress concentration index in real time, can quantify the cumulative stress of the sternal incision caused by improper posture, identifies influencing factors through the SCM structure causal model, constructs a rehabilitation data topology graph for each group, identifies key factors affecting the rehabilitation effect through causal inference, instead of only discovering correlation, provides a scientific basis for precise intervention, and avoids wrong decisions.

This invention belongs to the field of medical imaging and digital twin technology, and discloses a method for constructing a four-dimensional EIT (Electro-Induced Thrombectomy) digital phantom and database for lung imaging at the whole-organ system level. The method includes: S1) segmenting multiple organs such as the lungs, heart, sternum, ribs, thoracic vertebrae, main bronchus, and esophagus based on individual CT images to construct a three-dimensional geometric model integrating an EIT electrode array; S2) simulating dynamic respiratory deformation using a solid mechanics model; S3) establishing the coupling relationship between deformation and conductivity to generate a dynamic three-dimensional conductivity distribution; and S4) solving the electromagnetic field forward problem to generate a virtual EIT voltage database synchronized with respiration. This invention also covers pathological model integration and data augmentation strategies. This invention can generate high-fidelity, large-scale, and diverse virtual EIT datasets, providing core data support for training and validating AI intelligent reconstruction algorithms, and laying a model foundation for developing a dynamic digital twin system for lung function.

The utility model discloses a bone power suite for orthopedic surgery, which comprises a power main body and a functional head, the functional head comprises one or more of a swing saw assembly, a single condyle reciprocating saw assembly, a sternum reciprocating saw assembly and a bone drill assembly, and the functional head can be detachably butted on the power main body through a plug-in mounting mechanism. According to the bone power kit for the orthopedic surgery, one power main body can be matched with a plurality of functional heads through the inserting mechanism, so that the use cost of the orthopedic surgery can be greatly reduced; in addition, the swing saw assembly is simple in structure, few in part number and easy to assemble, the assembling time of the swing saw assembly can be greatly shortened, and therefore the manufacturing cost of the swing saw assembly can be greatly reduced.

The invention discloses a rehabilitation training device and method for osteoporotic thoracolumbar fracture patients, relates to the technical field of rehabilitation training instruments, is designed for the osteoporotic thoracolumbar fracture patients, and aims to realize personalized support and safety training through multi-component cooperative adjustment. The core of the device is a lifting mechanism, a motor drives a lead screw to rotate, a lifting lever is driven to stably ascend and descend, the height of a vertebra supporting assembly is adjusted, and the device adapts to body position changes of a patient. The vertebra supporting assembly is of a segmented linkage structure, a micro servo electric cylinder drives a protruding strip to be in linkage with a U-shaped base, a silica gel supporting plate and a silica gel strip form three-point supporting, the waist curve is precisely attached, and pressure is dispersed. The pelvic bone supporting assembly is in linkage with an arc-shaped bearing plate through an H-shaped movable rod and is matched with a C-shaped frame and a back supporting plate of the sternum supporting assembly, the thoracolumbar vertebra-pelvic bone integrated supporting system is constructed, and local compression is avoided.

The invention relates to the technical field of breathing state simulation, in particular to a human body breathing simulation system which is characterized by comprising a thoracic cavity structure model and a thoracic cavity driving assembly, the thoracic cavity driving assembly is provided with three driving shafts which are driven by the same servo motor and output linear motion, and the three driving shafts keep synchronous motion; a first connecting rod and a second connecting rod are arranged on the two sides of the sternum of the thoracic cavity structure model respectively, and the first connecting rod and the second connecting rod are connected with the tail ends of all the rib brackets on the same side; and three driving shafts which are driven by the same servo motor and output linear motion are respectively connected with the first connecting rod, the second connecting rod and the sternum and are used for pushing the sternum and all rib brackets to expand. As a calibration device for non-contact breathing parameter measurement, interference of an external environment is avoided, and the accuracy of a detection result is improved; the single servo motor synchronously drives the sternum and all the rib supports, and strict synchronization of thoracic cavity fluctuation and rib expansion is achieved.

1. The name of this design product: Surgical sternal retractor. 2. Purpose of the product of this design: A medical device used to physically retract soft tissue and bone tissue during clinical surgical operations. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: Stereoscopic drawing 1.

The invention discloses a cardiopulmonary resuscitation external chest compression parameter optimization method based on thoracic fracture risk assessment and blood perfusion, which comprises the following steps: inputting different waveform parameters, performing simulated cardiopulmonary resuscitation external chest compression operation on a current simulated thorax, and collecting corresponding pressure values borne by the simulated thorax and displacement values of the simulated thorax at different moments; acquiring thoracic aorta pressure and right atrium pressure corresponding to the simulated thorax by using a CPR blood circulation model, and acquiring corresponding coronary artery perfusion pressure CPP; according to the obtained CPP and the elastic modulus, obtaining a profit-risk tradeoff index BRI corresponding to different waveform parameters; and determining an optimal waveform parameter according to the BRI. According to the method, the influence of mechanical pressing parameter change on the sternum fracture risk and blood perfusion is explored, the judgment on the comprehensive pressing effect is obtained through comprehensive calculation, the blank of pressing waveform exploration in the American heart association guide is filled, and referable optimal pressing parameters and optimal pressing frequency are provided for clinical pressing.

The invention discloses a funnel chest correction device, and relates to the technical field of funnel chest correction, the funnel chest correction device comprises an orthopedic steel plate and a guider, one end of the guider is detachably connected with one end of the orthopedic steel plate, and the other end of the guider is provided with a wireless image probe; fixing devices are arranged at the two ends of the shape righting steel plate, and the fixing devices are detachably connected with the ends of the shape righting steel plate; the orthopedic steel plate is upwards bent and raised and is used for supporting a funnel thoracic cavity, and the two fixers are respectively positioned on two sides of the thoracic cavity and can be fixed on ribs on the upper side and the lower side. The guiding device can pull the thoracic cavity of the orthopedic steel plate to move, the wireless image probe provides a visual guiding picture for a traction path, real-time observation of the path in the process that an operator operates the guiding device is achieved, and the situation that after the guiding device punctures the space pleural membrane behind the sternum, bleeding, pneumothorax and other conditions of the thoracic cavity on the other side cannot be observed in real time is avoided; and meanwhile, the surgical instrument can still be completely dismantled after being fixed for a long time.

The present application relates to the technical field of vehicle safety evaluation, and particularly relates to a finite element model modeling method capable of reproducing chest cavity torsion performance. The method comprises the following steps: extracting the geometric profile of the chest cavity from a lying posture tomography image, the chest cavity structure comprising a breastbone, thoracic vertebrae and rib structure, correcting the thoracic vertebrae kyphosis angle based on a standing posture X-ray computed tomography image, and reconstructing a three-dimensional geometric model of the chest cavity; establishing a chest cavity finite element model through mesh division and material attribute definition; establishing a spherical hinge between the thoracic vertebrae transverse process and the rib head; assembling the chest cavity finite element model into a whole human body finite element model; and performing parameterized model optimization. The technical scheme can combine real anatomical structure and chest response data under complex collision conditions in multiple directions to establish a high-biometric finite element model capable of reproducing chest cavity torsion performance, so as to more accurately predict chest injury in VRU traffic accidents.

The application discloses a thoracic structure of a crash dummy reflecting the motion characteristics of a human thorax. The thoracic structure comprises a thoracic spine module, a rib vertebra joint module, a rib module and a breastbone. The upper end of the thoracic spine module is provided with a neck connecting block. The rib vertebra joint module is used for connecting the thoracic vertebra of the thoracic spine module and the ribs of the rib module. The breastbone is connected with the rib module. The thoracic spine module has the freedom of torsion, bending, stretching and lateral bending. The rib vertebra joint module enables the ribs and the thoracic vertebra to have the freedom of rotation. The rib module further comprises a rib cartilage made of elastic polymer material, which is connected between the ribs and the breastbone. The application combines human anatomy and human kinematics, fully considers the influence of the thoracic motion response on the thoracic injury during the collision process, improves the biofidelity of the dummy model, and further ensures the reliability of the dummy thoracic injury parameters in the automobile collision test.

This utility model discloses an adjustable chest fixation strap for thoracic surgery care, specifically relating to the field of chest fixation strap technology. It includes a sternal fixation strap wrapped around the patient's sternum, located under the patient's armpit. A chest protection strap is detachably connected to the top of the sternal fixation strap via a strap connector. The chest protection strap covers the patient's trachea to protect the surgical incision near the trachea. Two reinforcing straps are provided at the top of the chest protection strap, which wrap around the patient's shoulders to secure the chest protection strap to the patient's chest. This utility model, by binding the sternal fixation strap under the patient's armpit to prevent pressure sores caused by prolonged pressure, and then using the strap connector and reinforcing straps to secure the chest protection strap below the patient's neck, protects the incision near the trachea, overcoming the shortcomings of existing chest fixation straps and meeting clinical needs.

The present invention provides a thoracic vertebrae micro-dislocation simulation orthopedic training device and method. The thoracic vertebrae micro-dislocation simulation orthopedic training device includes a simulated thoracic vertebrae, simulated ribs, a simulated sternum, simulated muscles, a first pressure sensor, a stress sheet, a displacement sensor, a gyroscope, a tension sensor, a control module and a human-computer interaction module; the simulated thoracic vertebrae includes a plurality of thoracic vertebrae cone segments connected in sequence, each thoracic vertebrae cone segment is connected to the simulated sternum through a pair of simulated ribs, so that the simulated thoracic vertebrae, the simulated ribs and the simulated sternum form a barrel-shaped structure; the simulated thoracic vertebrae is covered in the simulated muscles; the stress sheet is provided on the simulated sternum, each thoracic vertebrae cone segment is provided with a displacement sensor and a gyroscope, and the tension sensor is provided in the simulated muscles; the first pressure sensor, the stress sheet, the displacement sensor, the gyroscope and the tension sensor are respectively connected to the control module, and the control module is connected to the human-computer interaction module.

The invention relates to the technical field of automobile simulation testing, in particular to a human body finite element model chest and skin connecting method. Comprising the following steps: determining positions of nodes of a safety belt unit, and taking two middle nodes for establishing the safety belt unit based on two nodes, close to the outer side of a thoracic skeleton, of skin; establishing a safety belt unit and attributes and materials thereof, and defining a loading curve and an unloading curve; interpolation constraints are established, nodes at the two ends of the safety belt unit serve as dependency nodes, 4-5 nearby nodes serve as independent nodes, and the independent nodes are evenly distributed with nodes, used for establishing the nodes of the safety belt unit, on the skin and the thorax as the center; impact simulation is carried out according to the chest typical verification working condition, and the connection stability is verified; and if the connection is not stable, adjusting the interpolation constraint position, the safety belt material curve and the number of independent nodes or increasing the interpolation constraint number until the calculation is stable. According to the technical scheme, the stability and accuracy of the human body finite element model in the simulation process can be improved.

The invention relates to the technical field of experimental medicine, and discloses a controllable hierarchical thoracic and abdominal knocking injury animal model establishment method, which comprises the following steps: S1, selecting a healthy beagle; s2, trachea cannula vein general anesthesia is conducted, a medicine injection cannula is connected with a breathing machine, and suction of 1% of isoflurane is maintained; s3, lying on the back and fixing on an experiment table with a thoracico-abdominal exposure hole; s4, a DZHE-01 injury platform is used for being aligned with the chest and the abdomen; s5, regulating pressure, grading and causing injury, and recording an overpressure curve; s6, recording indexes according to time after injury, and performing detection and image inspection. According to the method for establishing the controllable graded chest and abdomen knocking injury animal model, a healthy adult beagle is supine and fixed to an experiment table with chest and abdomen exposure holes, the upper edge of the sternum is exposed to symphysis pubis, a 5 mm nitrile rubber pad is laid on the table top, a lead plate is used for shielding the head and neck, rubber protection plates are used for shielding the limbs, and DZHE-01 platform shock waves only act on the chest and the abdomen; by combining light single-time, middle 1-2-time and heavy two-time grading injury, multiple thoracic and abdominal organ injuries are simulated, and the problem that an existing model is single in part is solved.