313 results about "Rib cage" 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 discloses an X-ray machine inspection parameter automatic configuration system for pet inspection, and relates to the technical field of medical imaging equipment, a displacement prediction model is used for pre-judging a pet convulsion state before exposure, a dynamic exposure trigger is only activated in a stable interval, and motion blur is avoided from the source; compared with the scheme of relying on post-exposure image feedback adjustment in the prior art, invalid radiation and repeated exposure operation can be avoided; the partition parameter mapping module is combined with a species feature database to map the gray level of the preview image into equivalent thickness and independently generate region parameters; aiming at extreme body type difference, such as an abdominal fat layer of an obese dog and a rib region of an emaciated cat, the system automatically distributes differentiated kV / mA parameters, and the problem of overexposure or underexposure caused by a traditional fixed penetration rate standard is eliminated; and the radiation fusing unit monitors the accumulated dose in real time, dynamically adjusts a safety threshold according to the weight of the pet, and stops exposure before the dose exceeds the limit.

The invention discloses a soft tissue constitutive parameter calibration method in a soft tissue-skeleton bird body model for bird strike simulation, and the method comprises the construction of a soft tissue-skeleton bird body finite element model and finite element reverse analysis based on flat bird strike. Dividing wing bones, leg bones and head and neck parts in the bones of the bird body into hexahedral unit grids, dividing wishbones, pecking bones, fossil protrusions and ribs into shell units, and dividing soft tissues into SPH particles; further obtaining bone elastic-plastic constitutive parameters through a static compression test, and endowing the bone units with the bone elastic-plastic constitutive parameters; an objective function is set as a mean square error between a flat plate center point pressure-time curve obtained by a real bird body impact flat plate test and corresponding curve data calculated by soft tissue-skeleton bird body impact flat plate finite element simulation, and soft tissue constitutive model parameters are inversely calibrated by adopting a genetic algorithm; and model and material parameter support is provided for bird strike simulation of a high-fidelity aircraft structure.

The invention discloses a pig rib cutting path planning method based on 3D point cloud, and belongs to the technical field of intelligent cutting and robot automation. High-precision original point cloud of a rib area of a pig carcass is obtained in real time through a 3D visual sensor, and then a segmentation threshold value is dynamically adjusted by introducing a self-adaptive growth factor based on local point cloud density, so that the preprocessed point cloud is robustly and accurately segmented into rib and rib meat areas, and a centerline of a spine and a rib gap are synchronously positioned. And based on the segmentation result, a plurality of independent costal meat communication components are automatically identified and separated through voxelization clustering and graph theory connectivity analysis. For each component, the main extension direction of the component is determined by constructing an axis alignment bounding box, and a series of discrete path points closely attached to the actual surface of the point cloud are generated in the direction. Spatial fitting is carried out by utilizing a cubic polynomial curve to generate a smooth and continuous cutting path which is highly fit with an anatomical structure, and the cutting path is directly converted into an executable track of the robot.

The invention relates to the technical field of ship manufacturing, in particular to a ship hull plate positioning and structural lineation data lofting method, which comprises the following steps of: marking a rib line, a first rib position line, a first height waterline, a second height waterline and a third height waterline according to a port rib theoretical line graph in a segment range; a first structure compensation amount is added to each gear of rib line in the port rib theoretical line graph in the height direction of the ship body; forming a jig frame center line after reverse deformation; determining the distance from each frame line to the base plane of the jig frame at the center line of the jig frame; the first reversible deformation line type, the second reversible deformation line type and a rib line between the first height waterline and the third height waterline form a rib line type graph; drawing a larboard planking positioning map according to the rib line drawing and the designed planking expansion drawing; and acquiring outer plate positioning data and structural line positioning data. According to the method, outer plate positioning and structure assembly positioning data of increasing the welding shrinkage in the transverse direction and the height direction in a regional mode can be effectively obtained.

An ultrasound-nuclear magnetism / CT registration method for dorsal root ganglion positioning is characterized in that a rib is used as an auxiliary mark of an auxiliary positioning image section, and accurate registration and image fusion of an ultrasound image and a nuclear magnetism / CT image are completed through the characteristic that the relative distance between a transverse process and the rib is fixed. And finally, the purpose of accurately positioning the dorsal root ganglion is achieved. The method is simple and easy to implement, high in accuracy and capable of effectively solving the problem that the dorsal root ganglion cannot be accurately positioned on the ultrasonic image, and the puncture treatment effect of the dorsal root ganglion is improved.

Described here are methods, systems, and devices, useful for minimally invasive surgical procedures. The methods may include introducing a grasper through an opening into an abdominal cavity, grasping a portion of a left lobe of a liver with the grasper, rotating the grasper towards a control element located outside the abdominal cavity by applying a magnetic field to the grasper across a body wall, and moving the control element over a set of ribs such that the liver bends into a folded configuration.

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.

A portable and collapsible canopy structure, capable of being set-up and locked in a set-up condition, and likewise unlocked and collapsed from the set-up condition to a collapsed condition for transportation and storage, comprises a lever system allowing for single-user operation for set-up and break-down, wherein the user remains outside the unit, preferably at a single corner of the canopy frame. Further, the lever system provides means for locking the frame in the set-up condition for safe use, and likewise unlocking the frame for collapsing the canopy structure for transport and storage. More particularly, a lever member engages with a rib linkage associated with one corner of the frame to extend said rib linkage to an extended condition, the extension of which coordinates simultaneous extension of the other rib linkages, as well as extension of horizontal supports connected between the corners of the canopy frame.

The utility model discloses a cable protection device of a magnetic suction disc crane, which belongs to the technical field of disc crane cables, and comprises a protection cylinder arranged on a hanging bracket, and the lower end of a cable penetrates through the protection cylinder to be connected with electrical equipment on the hanging bracket; the limiting rib cage is arranged at the upper end of the protective cylinder; the support is arranged in the protection cylinder, and a guide clamping frame used for guiding the direction of the cable is arranged on the support; the transmission mechanism is arranged on the support; according to the scheme, the cable can fall into the protection barrel, the phenomenon that the cable is suspended outside and rubs or winds with a hanging bracket or other mechanical parts can be avoided, and the situation that the cable is abraded or even broken is greatly prevented; when the end of the cable ascends and descends along with the hanging bracket, the transmission mechanism can drive the guide clamping frame to rotate gently at the same time, and therefore the cable can fall into the protection barrel in an orderly and ring shape, the phenomenon that the cable is wound and knotted in the protection barrel is prevented, the cable is better protected, the service life of the cable is prolonged, and the effect of the cable is improved.

The present application proposes a sternum internal fixator made of a shape memory alloy, comprising: a fixing plate (1) which has a sheet shape extending in a first direction (W) and a second direction (L) which are perpendicular to each other, is bent toward the inner surface side thereof in the first direction (W) within a body temperature range, and is used for fitting a sternum; a plurality of embracing arms (3) which extend from the two ends of the fixing plate in the first direction, are bent towards the inner surface side in an arc shape within the body temperature range, and are used for embracing the sternum between adjacent ribs; the fixing arms (2) extend from the two ends, in the second direction (L), of the fixing plate respectively, each fixing arm comprises a first section (21) and a second section (22), in the body temperature range, the first sections extend continuously with the fixing plate (1), and the second sections are connected with the first sections and bent by more than 90 degrees relative to the first sections.

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.

The periosteum detacher comprises a handle, a telescopic assembly and a tool bit part, the two ends of the telescopic assembly are connected with the handle and the tool bit part respectively, and the telescopic assembly is used for adjusting the distance between the handle and the tool bit part; the tool bit part is in bent connection with the telescopic assembly, and the included angle formed by the tool bit part and the telescopic assembly is larger than 80 degrees; the outer edge of the cutter head part extends towards the direction of the handle to form a curved surface, and a cutting edge is arranged on the outer edge of the cutter head part. According to the utility model, the distance between the handle and the cutter head part can be adjusted through the telescopic assembly according to requirements, so that the operation of the stripper is facilitated; the included angle formed by the knife head part and the telescopic assembly is larger than 80 degrees, so that the operation convenience of an operator can be improved, the tissue stripping difficulty in the costal cartilage taking process can be reduced, wounds are reduced to the minimum, rapid recovery of a patient is promoted, and the pain of the patient is relieved.

The invention belongs to the technical field of ship body structures, and discloses a ship body double-layer bottom structure and an installation method thereof, in the installation process of the ship body double-layer bottom structure, when a worker assembles an inner bottom plate body, a ship outer plate, a solid rib plate and a rib, installation of a slow-installation cover plate can be delayed, and when the structure is assembled, installation of the slow-installation cover plate is facilitated. In addition, after installation of the inner bottom plate body, the ship outer plate, the solid rib plate and the ribs is completed, a worker can also firstly install other equipment in the bilge of the ship body, due to the fact that the slow installation cover plate is not installed yet, the large operation space is achieved at the moment, and after installation of the structure is completed, the worker can conveniently install the inner bottom plate body, the ship outer plate, the solid rib plate and the ribs. The buffer cover plate is installed in the containing groove and fixedly connected with the ship outer plate, the groove wall of the containing groove, the solid rib plate and the ribs at the same time, due to the fact that the surface of the buffer cover plate is flush with the surface of the inner bottom plate body, the space above the inner bottom plate cannot be occupied, and more installation space can be reserved for a liquid tank or cabin equipment.

The object of the invention is to provide a riding aid that enables the correction of a horse's posture. The invention achieves this with a riding aid intended for use on the inside of the lower leg or ankle of a rider to exert pressure on the lower ribcage of a horse, wherein the riding aid comprises a base plate (1) from which a plurality of projections (2) extend.

A device for relieving the right shoulder muscles of a right-handed player when playing a stringed instrument, while simultaneously utilizing the resulting free fall force of the right arm to stabilize the instrument. The device consists of a body support that connects the upper bout of the instrument to the player's torso and an armrest that attaches to the rib of the upward-facing lower bout of the instrument, allowing the right upper arm to rest comfortably. When playing a stringed instrument, the right arm must be constantly held in a forward-raised and laterally abducted position due to the instrument's size, using muscle strength to prevent its weight from altering the instrument's playing position. The armrest allows the upper arm to rest comfortably, thus completely relieving the right shoulder muscles. The body support prevents the upper bow of the instrument from being levered forward and upward when the right arm, with its falling force, acts backward and downward on the lower bow. The device causes the force of fall released by the relaxation of the right shoulder muscles to clamp and fix the instrument between the arm, the leg on which it stands, the body support and the contact point between the base of the instrument and the upper body of the player.

The present invention relates to a thoracoscopy simulation apparatus and method for performing a simulation that includes generating a 3D atelectasis model on the basis of a CT lung image and displaying the location of a pulmonary nodule and a safe resection margin. The thoracoscopy simulation method according to the present embodiment is a thoracoscopy simulation method in which at least a portion of each step is performed by a processor, and may comprise the steps of: generating a 3D lung model in which a pulmonary nodule is displayed, the 3D lung model being generated on the basis of a chest CT image of a patient in an inspiratory state; changing the 3D lung model to generate a 3D atelectasis model in an expiratory state; generating a 3D thorax model using the 3D atelectasis model and the location of the ribs included in the chest CT image; and positioning the 3D thorax model in a virtual space and generating a simulation image on the basis of the 3D thorax model and the tracked locations of a thoracoscope and a surgical tool.

The invention discloses a puncture auxiliary device, and particularly relates to the technical field of medical instruments. The puncture auxiliary device comprises a protractor, an arc-shaped groove is formed in the protractor, and the distance between the center line of the arc-shaped groove and the circle center of the protractor is a preset value h; the scaleplate is movably installed on the protractor and is perpendicular to the bottom side plane of the protractor, the scaleplate can move along the arc-shaped groove, and a calibration line used for indicating an angle is arranged at the end, close to the protractor, of the scaleplate; the scale is sleeved with the moving assembly in a sliding mode, the moving assembly comprises a limiting component used for limiting a puncture needle, and a limiting hole used for limiting the puncture needle is formed in the limiting component. The device is simple in structure and convenient to operate, can realize single-person accurate puncture, effectively solves the problems of low efficiency and large error of multi-person manual measurement for avoiding ribs in a traditional method, and remarkably improves the safety and success rate of inclined puncture.

The utility model discloses a combined type bone fracture reduction plate which comprises a bone fracture plate and a holding and grabbing plate, an adjusting structure is arranged between the bone fracture plate and the holding and grabbing plate and used for achieving adjustment according to the width of a rib, and the adjusting structure comprises a positioning hole formed in the surface of the bone fracture plate and a plurality of adjusting holes formed in the holding and grabbing plate. The adjusting structure further comprises a plurality of grooves evenly formed in the two sides of the bone fracture plate, the bone fracture plate is slidably connected with the holding and grabbing plate through the grooves, the holding and grabbing plate and the bone fracture plate are slidably connected to be matched with the positioning holes and the adjusting holes to achieve fixation, and the bone fracture reduction plate can be adjusted according to the width of a rib. And therefore, the application range is wide, the operation efficiency is improved, and the time wasted by selecting the matched holding and grabbing plate is shortened.

The invention relates to the technical field of ship construction, in particular to a ship body jig frame lofting method which comprises the following steps: acquiring a rib line, a first rib position line, a first height line, a second height line and a third height line on a rib theoretical line graph; taking an intersection point of the first rib position line and the second height line as an original point, gradually increasing and shifting the second height line towards the broadside along the length direction of the ship by taking the first reversible deformation as a step length to form a jig frame center line; determining the distance from each frame line to the jig reference surface at the center line of the jig; in the vertical direction, all the rib lines in the area from the first height line to the keel bottom face of the ship body gradually deviate towards the broadside to form a first reversible deformation line type, and all the rib lines in the area from the third height line to the deck side line of the ship body gradually deviate towards the broadside to form a second reversible deformation line type; and manufacturing the jig frame. The requirement for aluminum alloy ship manufacturing can be met, and it is guaranteed that deformation of the aluminum alloy ship after welding meets the construction requirement.

This invention relates to a novel detachable rib circumferential device, comprising a crossbeam and at least two circumferential arms. The crossbeam is made of a flexible and shapeable medical material, and its sides have positioning grooves corresponding to the number of circumferential arms. The circumferential arms are made of a material that automatically shrinks when heated, and their width is less than or equal to the width of the positioning grooves. This invention features an ingenious structure and reasonable design, allowing for easy and convenient insertion even through small incisions, simplifying surgical procedures and adapting to the current trend of increasingly minimally invasive surgical incisions.

The present invention discloses a method and device for intelligently determining rib edges using an ultrasonic robot. The method comprises: moving a probe at the end of an ultrasonic robot arm to an initial starting position and recording the initial contact force and starting position between the probe and the human body in the vertical axis direction; controlling the ultrasonic robot arm to press downward, recording the contact force and position of the probe after the downward pressure, and calculating a current stiffness value based on the initial contact force and starting position; then determining whether the current stiffness value and the previous stiffness value obtained are greater than a preset stiffness threshold; determining the current probe position based on the judgment result, moving the probe to the next starting position according to a preset movement rule, and re-executing the above-mentioned ultrasonic robot arm downward pressure and stiffness value judgment process, or calculating the rib edge position based on the obtained three-dimensional spatial position after the previous downward pressure and the current three-dimensional spatial position after the downward pressure. This method can achieve accurate determination of the rib edge position.

The present disclosure provides a unique solution for assisting in the ventilation of lungs of subject that is performed by artificial mechanical ventilator. The solution of the present invention improves the efficiency of the ventilation effect by applying desired pressure profile on portions of the upper body part of the subject in synchronization with the mechanical ventilator operation, thereby creating a desired pressure profile or gradient in the lungs airways to ensure that air pumped into the lungs by the mechanical ventilator spreads more homogeneously in the lungs than without the intervention of the system of the present invention. The application of pressure is determined after analyzing data from sensors of the system that are placed on a plurality of portions on the upper body part of the subject and data received from the mechanical ventilator. These sensors sense data indicative of the ventilation profile within the lungs, i.e. pressure profile along different portions of the lung. The system provides extra-thoracic pressure on the rib cage according to pre-defined and adaptive algorithms based on the physiological status, the respiratory mechanics, and the inhomogeneous nature of lung injury. By applying pressure to the hyperventilated areas and reducing the transpulmonary pressure gradient, the system prevents hyperinflation trauma to the open areas and atelecto-trauma to the closed areas. The system is synchronized with the mechanical ventilator and adapt to changes in the patient's respiratory mechanics.

This invention relates to the field of marine technology, specifically disclosing a bilge structure for an oil spill recovery vessel, including an outer bilge plate, ribs, a sealing plate, a lower bilge elbow plate face panel, a lower bilge elbow plate web, and an upper bilge elbow plate; the two ends of the outer bilge plate are respectively connected to the side plates and the bottom plate, and ribs are provided on the inner side of the outer bilge plate away from the bottom plate; the ribs are located on the inner side of the bottom plate, and the ribs are provided with an inner bottom plate and an inner bottom folded edge plate, forming a groove between the inner bottom folded edge plate and the outer bilge plate; the sealing plate is located above the groove; the lower bilge elbow plate face panel is located at the bottom of the sealing plate; the lower bilge elbow plate web is located in the groove; the upper bilge elbow plate is located above the lower bilge elbow plate face panel and is used to connect the lower bilge elbow plate face panel and the ribs; wherein, the outer bilge plate, the inner bottom folded edge plate, the sealing plate, the lower bilge elbow plate face panel, and the lower bilge elbow plate web together form a closed structure, and the closed structure is filled with filling material. This invention eliminates the bilge grooves in the prior art, thereby improving the efficiency of residual oil extraction and cabin cleaning.

The application discloses a rib auxiliary distraction device, which comprises an adjusting screw rod, an end plate, a handle rod, a handle, a guide rod, an adjusting block, a screw rod sliding block, a fastening screw rod, a fastening nut, a distraction handle, a pressing plate, a connecting screw, a bearing, a shaft coupling and a micro motor. The rib auxiliary distraction device can adjust the position of the distraction handle at will, and can select the distraction handle with different angles according to the actual situation of the rib, so that the distraction handle is more suitable for the rib at the distraction position. After the rib is clamped into the bone clamping groove, the pressing plate is used for pressing, so that the rib is prevented from sliding out of the groove due to deformation during the distraction process, and the rib is also fixed, thereby reducing the safety hidden danger. Meanwhile, the motor driving can make the whole distraction process more stable and controllable, and the medical staff can pay attention to the rib distraction situation at any time, and the rib auxiliary distraction device is simple and convenient to use.

The utility model belongs to the technical field of medical instruments, and particularly relates to a thoracic surgery auxiliary expansion device which comprises a base mechanism, a supporting mechanism is installed above the base mechanism, a connecting mechanism is installed at the top end of the supporting mechanism, and an expansion mechanism is installed on one side of the connecting mechanism. The base mechanism comprises a bottom plate seat, a positioning supporting rod is connected to the outer side of the bottom plate seat in a threaded meshing and penetrating mode, and supporting legs are connected to the lower end of the positioning supporting rod. The supporting mechanism comprises a first supporting rod fixedly installed on the bottom plate seat, and a second supporting rod is arranged on the inner side of the first supporting rod. According to the rib expanding device, the expanding mechanism is supported through the base mechanism and the supporting mechanism, and when the expanding mechanism expands ribs of a patient, the expanding mechanism can expand the ribs of the patient; the dilation mechanism can be supported through the base mechanism and the supporting mechanism, the dilation mechanism is prevented from toppling over, manual supporting and positioning of the dilation mechanism can be replaced, and therefore the labor intensity of medical staff is reduced.

Provided is a garment making it possible to mitigate a feeling of being constricted.　A garment 1 is provided with an elastic body 2 that covers the front side, the left and right sides, and the back side of the wearer from the armpits to below a place W at the waistline. The body 2 has a front body 3, and a rear body 4 that has less stretch in the left / right direction than the front body 3. The front body 3 and the rear body 4 have left and right seams 5, 5 that are sewn together on the wearer's back side from the wearer's left and right armpits. The circumference of the body 2 worn at the place W at the height of the wearer's waistline is greater than the circumference worn at a place B at the height of the left and right sides of the wearer's eighth rib R8, and the proportion of a length d1 in the left / right direction of the front body 3 at the place W at the height of the wearer's waistline is greater than the proportion of the length d1 in the left / right direction of the front body 3 at the place B at the height of the left and right sides of the wearer's eighth rib, so that a tightening force at the place W at the wearer's waistline is smaller than a tightening force at the place B at the eighth rib on the wearer's left and right sides.