1685 results about "Fractured bone" patented technology

The invention relates to the technical field of image processing, in particular to an intelligent fracture diagnosis system based on image recognition, which comprises an image analysis module, a mode recognition module, a form analysis module, a risk assessment module and an auxiliary decision module. According to the method, skeleton gray level distribution and boundary consistency are analyzed through continuous frames of X-ray images, fracture feature extraction precision and time sequence coherence are improved, key point space distribution, symmetry standards and form proportions are fused, fracture area structured quantitative evaluation is achieved, the form change trend and abnormal offset point screening are combined, and the accuracy of fracture feature extraction is improved. The method enhances abnormal trajectory recognition precision, associates bone mineral density and form offset, calibrates high-risk time periods, improves risk assessment perspectiveness and individual adaptability, dynamically corrects output content according to an inter-frame suggestion change trend and extended feedback, enhances timeliness of diagnosis suggestions and closed-loop feedback quality, and improves risk assessment accuracy. Image evolution, structural geometry and physiological data are integrally fused, and multi-dimensional intelligent judgment of fracture recognition and evaluation is achieved.

The invention relates to the technical field of vehicle safety, in particular to a pedestrian body model chest injury risk curve adjusting method. Comprising the following steps: analyzing the relationship between the speed and the chest injury risk, and drawing a first curve between the vehicle speed and the injury risk based on accident statistical data; fitting data of a rib cortical bone uniaxial stretching material mechanics experiment; constructing a vehicle-pedestrian side impact simulation experiment matrix under different working conditions, and generating a simulation sample number; extracting the rib strain of the human body model in the sampling model, calculating the fracture probability of a single rib of the chest of the human body model, and then calculating the maximum simple injury probability of the specified chest of the human body model; fitting the relationship between the vehicle speed in the simulation model and the chest injury risk of the human body model, and drawing a second curve between the vehicle speed in the sample and the chest injury risk of the pedestrian model; and constructing an objective function according to the difference between the first risk curve and the second risk curve. According to the technical scheme, the accuracy of accident damage prediction can be improved.

The invention discloses an in-vitro bionic mechanical testing system and method for spinal skeletal muscles, and particularly relates to the field of mechanical testing, and the system comprises a bionic construction module, a finite element modeling module, a multi-axis mechanical loading module, an iterative calculation module and a correction module; through modular design, the system comprises a vertebral body unit, an intervertebral disc simulation assembly and a skeletal muscle simulation unit, each assembly is customized according to anatomical features of a human body, a finite element modeling module is utilized to generate a three-dimensional model, a multi-directional mechanical load is applied, and response data is collected; experimental data are input into the finite element model for iterative calculation, so that stress distribution, a strain field and kinematic deviation are compared; if the error exceeds a preset threshold value, the model parameters and the physical parameters are corrected until the experiment and simulation results converge; and finally, based on the optimized finite element model, predicting a failure mechanism of the spinal skeletal muscle under a complex load, and evaluating the risks of fracture, hairline fracture, nucleus pulposus protrusion and muscle strain.

Systems and techniques may include enhancing production of a natural resource from a reservoir in the earth.By pumping and circulating a material through a reservoir, where the material interacts with proppant or formation material in fracture zones, the interaction reduces permeability in an overproductive fracture zone and redirects flow to an underproductive fracture zone. Through this self-correcting feedback mechanism, flow redistributes more uniformly across multiple fracture zones over time, resulting in more even permeability distribution and improved reservoir performance. The systems and techniques enable passive treatment using chemical solutions that create self-correcting permeability changes, leading to more controlled and efficient resource recovery from subsurface reservoirs.

A telescopic intramedullary nail for the treatment of fractures or deformations of long bones, such as for example in the case of osteogenesis imperfecta or pseudoarthrosis may include a hollow stem and a rod telescopically coupled inside said hollow stem. The hollow stem may include, at a free distal end, an anchor tip configured to be internally fixed inside a distal portion of a long bone of a patient, without protruding from said long bone. The rod may include a free proximal end arranged to be fixed to a proximal site of said long bone.

The invention discloses an image recognition system for constructing osteoporotic vertebral fracture healing based on artificial intelligence, and particularly relates to the technical field of orthopedic treatment, which comprises a data preprocessing module for extracting and optimizing data from an original medical image. According to the method, the advantage of discipline crossing is developed, a recognition system on medical imaging is developed based on deep learning, the advantage that the recognition system can discover detail features and hidden rules which cannot be found by human beings is utilized, and then a large amount of structured data is utilized to automatically learn and train visual feature expression of abstract data, so that the clinical missed diagnosis rate is reduced, and the clinical diagnosis efficiency is improved. The artificial intelligence architecture is trained by a rigorous and scientific means, so that the artificial intelligence architecture has clinical experience and knowledge of high-age dominant doctors and is popularized in local hospitals to achieve an auxiliary diagnosis effect, the difference of medical differentiation is reduced, the technical and experience defects of local medical personnel are made up, and the technical and experience defects of the local medical personnel are overcome. The aim of improving the definite diagnosis rate of diseases and reducing the missed diagnosis rate is one of the purposes of the invention.

An apparatus, system, and method may be used to replace a natural or artificial articular surface of a joint, and to repair a bone that is associated with the joint. In some embodiments, the apparatus, system, and method may include a joint replacement prosthesis with a prosthetic articular surface, a support structure securable to the bone, and a first attachment interface. The system may also include a bone plate with a bone engagement surface securable to the bone on either side of a fracture formed in the bone, or a damaged area of the bone. The bone plate may include a second attachment interface that is attachable to the first attachment interface of the joint replacement prosthesis in order to couple the bone plate to the joint replacement prosthesis.

The invention discloses a method and a device for acquiring parameters of an internal fracture fixation system, and relates to the technical field of medical data processing. Constructing a digital model of the skeleton and the surrounding soft tissue based on the three-dimensional scanning image by utilizing a biomechanical principle; using a machine learning algorithm to train the historical case data, and generating a preliminary internal fixed parameter prediction model; applying the preliminary parameters to a digital model for simulation verification, and optimizing the internal fixed parameters to an optimal combination; performing personalized adjustment on the simulation result according to individual differences of patients and experience of clinical doctors; the state of the internal fixation system is monitored in real time in the operation process, and parameter fine adjustment is conducted according to feedback; the fracture healing condition is regularly evaluated after the operation, and the internal fixation parameters are adjusted according to the evaluation result. Through personalized and precise internal fixation parameter setting, a good mechanical repair environment is created for a fracture part, bone cell proliferation and ordered growth of callus are promoted, and the healing time is effectively shortened.

The present disclosure relates to surgical systems, devices and methods for planning and performing surgical procedures, including bone fracture repair. The systems and methods disclosed herein can be utilized to establish physical models of anatomical structures.

The invention discloses an ultrasonic auxiliary system for automatic recognition and diagnosis of emergency fracture, and relates to the technical field of acoustic fracture detection. The auxiliary system comprises an ultrasonic image acquisition module used for acquiring ultrasonic image data of a fracture position of a patient; the processing module is used for processing the ultrasonic image data and outputting identification data; and the diagnosis decision module is used for outputting diagnosis data based on the identification data of the processing module. Through the arrangement of the region focusing analysis unit, resource allocation is optimized and calculated by gradually reducing the analysis range, the primary detection layer quickly eliminates intact regions and outputs primary fracture region marks, the intermediate classification layer performs soft tissue reaction quantitative analysis on the primary fracture regions and generates marked regions, and the advanced positioning layer processes the marked regions. The resource consumption is reduced in combination with sub-pixel-level analysis, and the architecture enables system resources to be quickly concentrated in a fracture area, so that the processing time efficiency of fracture recognition is reduced.

The invention relates to the technical field of image simulation modeling, in particular to a medical instrument visual simulation method based on data recognition. The method comprises the following steps: carrying out rotation angle calibration on a medical instrument, and carrying out rotation angle X-ray projection data acquisition to obtain multi-view projection image sequence data; performing three-dimensional skeleton model optimization according to the multi-view projection image sequence data to generate an optimized skeleton scanning three-dimensional model; performing potential fracture probability processing on the multi-view projection image sequence data based on the optimized skeleton scanning three-dimensional model to generate potential fracture probability data; and carrying out fracture area marking on the optimized bone scanning three-dimensional model through the potential fracture probability data, and carrying out part stress analogue simulation to obtain a three-dimensional visual fracture report. According to the method, accurate marking of the fracture area and visual report generation are realized through reconstruction of the three-dimensional space model of the scanned image, and the accuracy and efficiency of fracture detection are remarkably improved.

The invention discloses a titanium alloy wire woven belt, a processing technology and application of the titanium alloy wire woven belt, the titanium alloy wire woven belt comprises a plurality of mutually woven titanium alloy wires, the titanium alloy wires are woven to form a circular woven belt with a quasi-circular cross section, or the titanium alloy wires are woven to form a flat woven belt with a flat cross section, and the titanium alloy wires are woven to form the titanium alloy wire woven belt. And the diameter of the titanium alloy wire is controlled between 0.05 mm and 0.20 mm. The invention has the following advantages and effects: the scheme utilizes a new mechanical structure, and has the effects that the circular woven belt or the flat woven belt can be selected according to the actual fracture site, and the woven belt has higher mechanical property and is not easy to break.

The present disclosure provides a method and system for overlay presentation of a skeletal image based on augmented reality, relating to the technical field of smart medical systems. The method includes obtaining fracture imaging data for a fracture region of a patient, the fracture imaging data including a CT image, an X-ray image, and a light-field image; parsing a ray model corresponding to the light-field image, the ray model providing spatial propagation information of a light in the fracture region of the patient; determining a multimodal fusion feature corresponding to the fracture imaging data based on the ray model and a feature fusion network; reconstructing a three-dimensional model of a fracture part based on the multimodal fusion feature; and aligning and calibrating the reconstructed three-dimensional model of the fracture part with the fracture region of the patient in an actual surgical scene.

Method and apparatus of automatic fracture detection from imaging scans are disclosed. A innovative manifold view combing advantages of earlier approaches while avoiding the limitations of these approaches is coupled with a deep learning based fracture detection model. Ribs and spine from a three-dimensional scan are segmented, rib centerlines and vertebra center landmarks are detected and labeled. Three-dimensional position coordinates corresponding to the received data are mapped to a defined two-dimensional manifold plane followed by interpolation and sampling techniques to generate a two-dimensional manifold slice and corresponding mapping function. A three-dimensional visualization of the rib cage is generated from a plurality of manifold slices. A trained fracture prediction model receives the plurality of manifold slices and generates a revised stack of two-dimensional manifold slices showing predicted fractures. The predicted fractures may be shown in the two-dimensional manifold slice or mapped back to the image space of the original three-dimensional scan.

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 discloses a three-section thighbone retrograde intramedullary nail, relates to the field of medical instruments, and provides a detachable and assembled three-section thighbone retrograde intramedullary nail aiming at the problems that an existing thighbone medial condyle retrograde intramedullary nail is poor in adaptability and insufficient in fixing strength. A main nail body of the intramedullary nail is composed of a head section, a middle section and a tail section, original spiral nested structures are adopted at the joints of the sections, and the three sections are tightly connected to form the complete and high-strength intramedullary nail by matching with the hollow interior design and penetrating a titanium cable into a medullary cavity for tightening and automatically rotating and matching the head section and the middle section of the main nail body. And medullary cavity structures and fracture types of different patients can be accurately matched. Compared with a traditional intramedullary nail, the intramedullary nail has the advantages that mounting convenience and structural stability are remarkably improved, intraoperative adjustment time can be shortened, the risk of injury to a medullary cavity of a patient is reduced, and an innovative solution is provided for personalized treatment of distal femur fractures.

The invention discloses an artificial intelligence assisted femoral neck fracture screw path planning system and method, and the system comprises an image collection module, a structure recognition module, a path planning module, a decision feedback module and a robot execution module, and all the modules achieve the linkage through data and control signal interfaces. Structured and data-driven design reference is provided, unnecessary attempts and repeated operations are reduced, the path design efficiency and standardization level are improved, and the implementation mode has good adaptability, can be compatible with existing multi-brand orthopedic robot platforms, is especially suitable for intelligent screw path planning in femoral neck fracture fixation, and has wide application prospects. The method has remarkable advantages in the aspects of technical innovation and industrial application, and is expected to improve the screw implantation precision, shorten the time consumption in the operation, reduce the track adjustment frequency, reduce the radiation exposure risk, and promote the deep development and clinical transformation of the AI-assisted intelligent path control technology in the field of orthopedic operations.

The invention relates to the technical field of bone implants for minimally invasive surgery, and particularly discloses an implant for percutaneous minimally invasive thoracolumbar vertebral fracture, which comprises a vertebral body forming body, the vertebral body forming body comprises a vertebral body forming body head and a plurality of blade parts arranged at the rear end of the vertebral body forming body head in a surrounding manner, the vertebral body forming body head is provided with a needle guide hole penetrating along the axial direction, and the needle guide hole is communicated with the blade parts; a containing cavity is defined by the blade parts; the front end of the threaded guide rod and the head of the cone forming body are integrally formed, the needle guide hole penetrates through the threaded guide rod in the axial direction, and the rear end of the threaded guide rod extends out of the containing cavity; the pedicle screw is provided with a threaded hole penetrating in the axial direction, the threaded hole is in threaded connection with the threaded guide rod, the pedicle screw comprises a screw head and a threaded part arranged at the rear end of the screw head, and the screw head is arranged in the containing cavity and expands the blade part. According to the implant for the percutaneous minimally invasive thoracolumbar vertebral fracture, surgical wounds are reduced, the vertebral restoration effect is good, the stability of a vertebral formed body is guaranteed, and the surgical time can be saved.

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 discloses a fracture postoperative lower limb dynamic load rehabilitation training system based on multi-modal fusion, and the system comprises a pressure sensing module which is used for collecting the pressure data of different areas of a sole in real time, and transmitting a pressure signal to an edge calculation control unit; the electromyographic signal acquisition module reflects the working state of the muscle by acquiring an electrical activity signal of the muscle, and sends an electromyographic signal to the edge calculation control unit for calculation of a dynamic safety load model and judgment of the training state by the system; the micro-motion detection module is used for monitoring micro-motion displacement of a fracture part in real time, and the initial parameter input module is connected with the edge calculation control unit and used for collecting and processing data of a fracture area of a patient; according to the invention, the safety and effectiveness of rehabilitation training are improved, the safety of a patient in the rehabilitation training process is guaranteed, the possibility that the patient is subjected to secondary injury is reduced, the quality and effect of rehabilitation training are improved, and the intelligence and visualization degree of the rehabilitation training process is improved.

The invention discloses an intelligent wearable limb movement monitoring device for pediatric surgery postoperative rehabilitation, and relates to the technical field of medical instruments, the intelligent wearable limb movement monitoring device comprises a bottom sleeve and a top sleeve, one side of the bottom sleeve and one side of the top sleeve are movably connected through a shaft, the other side of the bottom sleeve and the other side of the top sleeve are movably connected with a lock catch, and the inner side of the bottom sleeve and the inner side of the top sleeve are movably connected with a plurality of clamping plates; a flexible myoelectricity sensor is integrally installed on the face, directly making contact with the arm of the patient, of the clamping plate and used for monitoring the muscle state of the fracture position of the arm of the patient in real time. The distance between the clamping plate and the arm of the patient is adjusted through the adjusting mechanism, so that the initial compression force monitored by the pressure sensor is at the most suitable constraint pressure, when the arm of the patient gradually swells, the compression force monitored by the pressure sensor is increased, and at the moment, the adjusting mechanism drives the clamping plate to be gradually away from the arm skin of the patient; the pressure sensor is used for detecting the pressure on the arm of the patient so as to relieve the pressure generated on the arm of the patient until the pressure monitored by the pressure sensor is consistent with the pressure in the initial stage.

Provided is a traction device for lower limb fracture, which comprises: a supporting assembly (10), the supporting assembly (10) comprising a driving assembly (15); a vertical support (20), the vertical support (20) being connected to the supporting assembly (10); a traction assembly (30), the traction assembly (30) being sleeved on the vertical support (20); and a telescopic rod (40), one end of the telescopic rod (40) being connected to the supporting assembly (10), and the other end thereof being connected to the traction assembly (30). The traction device has the following advantages: enabling unified synchronous adjustment of the supporting assembly (10) and the traction assembly (30) and thereby allowing precise adjustment of the traction force, thus guaranteeing ideal alignment and positioning during reduction of fracture; satisfying individualized patient needs in the using process and preventing complications caused by long-time traction; and allowing height and angle to be adjustable, so that the device's applicability across populations is expanded, complications such as a local blood circulation disorder caused by extended use can be prevented, and meanwhile, the supporting effect and the patient comfort are also improved.

The invention relates to the field of demonstration teaching aids, in particular to a pediatric orthopedic repair demonstration box which comprises a box body, a front chamber is formed in the middle of the front side of the box body, silos are rotationally connected to the upper portion and the lower portion in the front chamber, and mounting discs are mounted on the inner sides of the ends, close to each other, of the silos. The ends, close to each other, of the mounting discs are fixedly connected with a plurality of simulation blood vessels, electric heating wires are arranged in the simulation blood vessels, the ends, away from the simulation blood vessels, of the mounting discs are fixedly connected with power connection bins, and the power connection bins are used for supplying power to the electric heating wires in the simulation blood vessels; according to the device, how to avoid the main blood vessel of the leg when a surgical incision is formed in a fracture point can be trained, the actual surgical condition is simulated, the surgical scene is highly restored, the practical training pertinence is improved, and the practical training efficiency is improved. And the operation opening proficiency of people is trained.

The present invention discloses a novel bone transport intramedullary nail, comprising an intramedullary nail main nail, the intramedullary nail main nail is a hollow structure, the intramedullary nail main nail comprises an intramedullary nail proximal end and an intramedullary nail main body, the intramedullary nail proximal end and the intramedullary nail main body are an integrated structure, the intramedullary nail proximal end has a diameter greater than the diameter of the intramedullary nail main body, the intramedullary nail proximal end is provided with a through dynamic screw hole and a static screw hole, an adjustment hole is provided on the intramedullary nail main body away from the intramedullary nail proximal end, a dynamic bone screw is installed in the dynamic screw hole, the dynamic bone screw can move axially along the dynamic screw hole, a tail cap is installed on the proximal side of the intramedullary nail, an elastic body 1 is provided between the tail cap and the dynamic bone screw, and a bone transport device for adjusting the movement of the fracture end is provided on the intramedullary nail main body. The elastic device can give stress stimulation to the bone segment, avoid stress shielding, accelerate fracture healing, reduce delayed fracture healing and non-union, and reduce the incidence of re-fracture after removing the intramedullary nail.

The invention discloses a cardiac surgery sternum dilator for preventing rib fracture, which comprises a first distraction arm, a guide plate, a second distraction arm, a distraction plate, a pressure gauge, a brake component and a controller, and is characterized in that the first distraction arm is fixed at one end of the guide plate; the second distraction arm is arranged on the guide plate and can move along the guide plate; guide grooves are formed in the opposite sides of the first distraction arm and the second distraction arm, a distraction plate is inserted into each guide groove, and the distraction plates can move in the length direction and the height direction relative to the guide grooves; the first distraction arm and the second distraction arm are each provided with a pressure gauge in a sliding mode, and the detection ends of the pressure gauges can abut against the corresponding distraction plates. And the brake component is arranged on the second distraction arm. Therefore, the sternum distraction pressure can be detected, braking is carried out when the pressure is too large, and therefore the situation of side injury of rib fracture caused by the too large distraction pressure is avoided, and the discomfort of a patient in the postoperative recovery process is reduced.

The invention provides an embracing claw steel plate for fixing proximal clavicle fracture, and belongs to the technical field of medical instruments. Comprising a double-claw embracing steel plate, a bone fracture steel plate is arranged at the top of the double-claw embracing steel plate, a mounting grip is connected to one side of the double-claw embracing steel plate in a clamped mode, and a clavicle is arranged in the double-claw embracing steel plate; and the mounting assembly is used for mounting the double-claw encircling steel plate, and the mounting assembly is connected with the mounting grip. Through precise clamping design of the mounting assembly, the clamping plate and the fixing column, rapid assembly of the double-claw surrounding steel plate and the mounting grip is achieved, positioning and tightening of the steel plate can be completed by pressing down and holding the mounting grip, the surrounding claws deform in a self-adaptive mode along the light-weight grooves and the weakening grooves, the clavicle can be tightly wrapped, complex operation is not needed, and the working efficiency is improved. Meanwhile, the locking structures of the clamping blocks and the fixing grooves are matched, and it is ensured that the position of the double-claw encircling steel plate is fixed and not loosened in the operation process.

A fracture reduction mechanism for minimally invasive pelvic fracture surgery, comprising a support assembly, a drive assembly, a self-rotating clamping assembly, and a healthy side fixation assembly, wherein the drive assembly comprises a synchronous rotation module (21), a first ball screw module (22), a second ball screw module (23), a third ball screw module (24), and an arc guide rail module (33); the mechanism forms a frame-like closed structure through connection with an operating table (1) via bedside rails (2) on both sides of the operating table (1), the support assembly and healthy side fixation assembly are slidably connected with the bedside rails (2). By manually adjusting the linear movement distances and fixed-axis rotation angles of the above mechanism, six degrees of freedom translation and rotation of the pelvic fracture block can be achieved. The mechanism features high rigidity and load-bearing capacity, good portability, simple assembly and operation, high motion precision, and its motion center is a virtual point in space, the position of which can be adjusted according to patient position and fracture type, providing convenience for surgery.

The present invention relates to a bone plate for connecting fractured bones. The bone plate includes a trunk and a tail connected to one end of the trunk, and the trunk includes a raised abdomen and a flat back connected to the abdomen. The trunk is implanted in the bone marrow cavity of the bone and partially shields the radial cross-section of the bone marrow cavity. The tail is fixed to the bone. The abdomen and the back both abut the crack of the broken bone. The present invention provides a trunk including a raised abdomen and a flat back, and the abdomen and the back abut the crack of the broken bone, so that the bone plate stably connects the fractured bones together, and the bone plate will not deform significantly with the deformation of the bone. At the same time, because the trunk partially shields the radial cross-section of the bone marrow cavity, the bone marrow cavity is not completely blocked, which helps to transport nutrients in the bone marrow. In addition, the surgical wound of the bone plate of the present invention is small.

The invention relates to the technical field of medical apparatuses and instruments, and provides a portable electric vibration micro fracture device which comprises a holding part, one end of the connecting rod assembly is connected with the holding part; the first end of the bent connector is detachably connected with the end, away from the holding part, of the connecting rod assembly, the second end of the bent connector is provided with an execution piece used for bone tissue punching, the interior of the bent connector is detachably connected with an axial vibration driving piece, and the axial vibration driving piece acts on the execution piece and is used for driving the execution piece to reciprocate in the axial direction of the axial vibration driving piece; the power supply assembly is embedded in the holding part and is electrically connected with the vibration driving assembly; the elbow connector and the connecting rod assembly are detachably connected, elbow connectors with different bending angles can be rapidly and conveniently replaced, and the operation requirements of different crowds are met; the axial vibration driving part can drive the executing part to do reciprocating motion in the axial direction, progressive punching is achieved through stable axial vibration, the risk caused by out-of-control operation force can be greatly reduced, and the operation safety is improved.

To prevent breakage of a joint part.SOLUTION: A manufacturing method for a floor member of a vehicle includes: forming beads in a plurality of bead portions in a body member; disposing a plurality of reinforcing members in a plurality of covering portions in the body member; forming a joining material by welding the body member and the plurality of reinforcing members; and performing cold press forming on the joining material. A lower ridge line portion extending along a ridge line is formed in correspondence with each reinforcing member by the cold press forming. The lower ridge line portion is bent so as to protrude toward the main body member in a cross section orthogonal to the ridge line. The bead portions are located at the lower ridge portion or in the vicinity of the lower ridge portion.SELECTED DRAWING: Figure 6