China Automotive Technology and Research Center Co. Ltd

Catarc Automotive Test Center (tianjin) Co., Ltd

Reach Surgical Inc.

Tianjin Zhonghuan Quantum Tech Co., Ltd.

Inventec Corp.

Jiangnan University

Nankai University

Wuxi Huashunminsheng Food Co. Ltd.

Anjoy Foods Group Co., Ltd.

Hubei Anjoy Food Co. Ltd.

China Railway Design Corporation

Kai Wang

Weidong Liu

Zhixin Liu

Yongqiang Wu

Hanxiao Zhang

Tianyi Hao

Zhixin Wu

Hong Chen

Minghao Xie

Hua Zhou

Hai Liu

Ye Hao

Peng Liu

Xin Li

Hong Zheng

Weijie Ma

Yuechen Ji

Haitao Zhu

Bosong Liu

Junjie Hao

Zhengqi Fan

Hongyang Qi

Xiaowei Sun

Rongxuan Feng

Hao Zhang

Wei Chen

Jianxin Zhao

Tom Chen

Win-Harn Liu

Wen Li

Bowen Yan

Deling Kong

Meifeng Zhu

Jianlian Huang

Huayu Yang

Yu Li

Lei Yang

Zhi Li

Nan Zhang

Guangzhou Song

Weinan Ju

Huizhang Lian

Chunfeng Li

Yejun Wu

Changqing Yu

Xiuxiu Li

Mai Yao

Zihe Meng

Jinbiao Fei

Mei Lu

Shihang Chen

Ke Pang

Weixiao Li

Qingmiao Zhang

Shuo Zhao

Hengxu Lv

Wenqian Cong

Rui Lu

Wenfeng Gao

Jiwei Deng

Hai Zhao

Guanjun Zhang

Shenghua Qiao

Yin Zhang

Yingjie Zhang

Huxiao Nie

Dun Bian

Wenteng Zhang

Liang Yue

Manli Liu

Wenguo Zhou

Yafei Jiang

Town Chen

Yuhui Ge

Shuai Gao

Luoming Zhao

Guangshuai Wang

Darning Fan

Xinhai Zhang

Liwei Qin

Bingxu Duan

A surgical instrument includes a handle portion; an elongated shaft extending from the handle portion to a distal side; an end effector; and an joint assembly, a articulating mechanism and a lockout assembly, the lockout assembly comprises a first lock member and a second lock member, the first lock member is operated to selectively lock a bending operation of the articulating mechanism, and the first lock member is arranged to selectively lock the bending operation of the articulating mechanism under an operation of the articulating mechanism; and the second lock member is arranged to selectively lock a position of the joint assembly under an operation of the handle portion.

Surgical instrument

A method for manufacturing a seat for measuring a standard driving posture of a human body includes: performing three-dimensional scanning on an auxiliary device to acquire a first point cloud data set; constructing N seat curves according to the plurality of groups of displacement data sets; correspondingly processing the N seat curves and the first point cloud data set to delete the point cloud data above the seat curves so as to obtain a second point cloud data set; and performing inverse modeling on the second point cloud data set to obtain a rigid seat model for manufacturing a rigid seat. The rigid seat manufactured through the method facilitates putting a dummy in a standard driving posture and also can avoid the problem that key sizes of the dummy are not correctly measured due to deformation of the seat surface.

Method for manufacturing seat for measuring standard driving posture of human body

An acellular matrix woven material, a preparation method and an application thereof are provided. The acellular matrix woven material is prepared by combining 3D printing with weaving. At the same time, also provided are the acellular matrix woven material prepared by the preparation method and its application in preparing tissue engineering scaffold materials.

Acellular matrix woven material, preparation method and application thereof

Disclosed is a method of high-precision 3D reconstruction of existing railway track lines based on UAV multi-view images, including: acquiring initial data, acquiring a UAV image rail top centerline, calculating a rail top centerline based on a nonlinear least squares method, and calculating three-dimensional coordinates of the rail centerline. Based on the multi-view geometry principle in computer vision and photogrammetry, object space coordinates of the line can be directly calculated by using image information, which does not require outdoor workers to work online and can effectively improve the safety of railway operation line surveying and mapping. Therefore, this method has important engineering application value and application prospect.

Method of high-precision 3D reconstruction of existing railway track lines based on UAV multi-view images

A method for measuring deformation of dummy rib, includes: controlling a plurality of laser device groups to slide along corresponding curve segments respectively, and executing the following steps when the laser device groups slide to each sampling point, to obtain a degree of deformation at a position, corresponding to the sampling point, on to-be-measured dummy rib, the following steps including: controlling a laser range finder to emit a laser beam in a normal vector direction of a tangent corresponding to a position on a slide rail; determining whether the laser range finder receives corresponding reflected laser. This embodiment can have advantages of simple operation, low cost, and high accuracy.

Method for measuring deformation of dummy rib

A skin manufacturing post-treatment method for an automobile collision dummy includes: forming a first pouring portion on a skin layer to be treated, and forming a patching recess by grinding the first pouring portion; obtaining an epidermis layer to be treated, and arranging a heating assembly above the patching recess, where the heating assembly is attached to an interior of the patching recess, and the epidermis layer; and simultaneously heating, by the heating assembly, the patching recess and the epidermis layer to be treated. In this way, the epidermis layer to be treated and an inner wall of the patching recess can be simultaneously heated at the first preset temperature, the epidermis layer to be treated and the inner wall of the patching recess are consistent in temperature, and a connection strength between the epidermis layer to be treated and the inner wall of the patching recess is enhanced.

Skin manufacturing post-treatment method for automobile collision dummy

A skin manufacturing post-treatment device for an automobile collision dummy device includes a post-treatment mechanism, where the post-treatment mechanism includes a rotary operation table that is provided with a cutting station, a grinding station, a skin patching station and a removal station in a circumferential direction; the cutting station is configured to cut an injection molding residual material on a surface of a dummy skin, and the grinding station is configured to grind a cut position to form a frustum-shaped patching recess; and the skin patching station is configured to fill the patching recess with a welding skin patching material, and the removal station is configured to clean a skin patching position.

Skin manufacturing post-treatment device for automobile collision dummy

A method for predicting dummy head injury during an automobile collision includes: enabling a dummy head to collide with a rigid flat plate; obtaining a first data set in a collision process; calculating the maximum contact force of the dummy head and the rigid flat plate in the collision process according to the first data set; dividing a duration of the collision process into a plurality of time intervals; and calculating an injury value of the dummy head in each time interval according to the maximum contact force, and selecting the maximum injury value as a target injury value. The method provided by the present application may realize prediction for the head injury under different scene working conditions, and has the advantages of being simple in test flow, and high in prediction precision.

Method for predicting dummy head injury during automobile collision

Disclosed are a tool and a method for measuring a parallelism and coaxiality of a rotating shaft of shoulder joint of a crash dummy, relating to the technical field of vehicle safety crash testing dummies. The measuring tool and a method can efficiently and accurately measure the coaxiality and parallelism of the rotating shaft of shoulder joint of the crash dummy.

Tool and method for measuring parallelism and coaxiality of rotating shafts of shoulder joints of crash dummy

Disclosed are a tool and a method for measuring a perpendicularity and an angle of a femur of a vehicle crash dummy. The tool includes: a base, where the base is provided with a guide ring gear; and a clamp assembly, where the clamp assembly is configured to clamp a femur part. A measurement assembly can measure the perpendicularity and the angle of the femur part conveniently.

Tool and method for measuring perpendicularity and angle of femur of vehicle crash dummy

Disclosed are a tool and a method for measuring a parallelism and an angle of a shank skeleton of a vehicle crash dummy. The tool includes: a fixation seat, where a magnetic fastener is arranged on the fixation seat and configured to mount a shank U-shaped member; and a movement assembly that is configured to drive a measurement assembly to move, so as to change a relative position of a measurement end of the measurement assembly and the shank U-shaped member. The condition that the measurement assembly directly comes into contact with the shank U-shaped member, and damages a surface of the shank U-shaped member is avoided while making an entire measurement process more convenient.

Tool and method for measuring parallelism and angle of shank skeleton of vehicle crash dummy

A method for calibrating a chest of a vehicle crash dummy, includes: controlling, under each preset test condition, a pressing apparatus to press down a chest of a target crash dummy with a target pressing speed and a target pressing distance corresponding to the preset test condition, obtaining an actual force-displacement curve under each preset test condition, obtaining a standard force-displacement curve of a chest of a standard crash dummy under each preset test condition, and determining, according to the actual force-displacement curve and the standard force-displacement curve under each preset test condition, whether the chest of the target crash dummy satisfies a biological simulation standard. Through collecting information under various preset test conditions, various complicated conditions of impact on the chest can be more effectively simulated in a crash test by using the method, which improves the accuracy of determining the biological simulation standard.

Method and device for calibrating chest of vehicle crash dummy

A method for impact test on a lower abdomen of a vehicle crash test dummy includes: controlling an arc-shaped hammer head to impact a lower abdomen of a preset dummy at a preset speed; obtaining displacements from a displacement sensor, wherein the displacements are generated by the lower abdomen of the preset dummy and the arc-shaped hammer head during the impact; obtaining a pressure from a pressure sensor, wherein the pressure is borne by the lower abdomen of the preset dummy during the impact; and determining, based on the displacements and the pressure, whether the preset dummy satisfies a biological simulation standard. The method is capable of testing whether the current dummy satisfies the biological simulation standard, so as to ensure the accuracy of test data in subsequent vehicle crash tests using the dummy.

Method and device for impact test on lower abdomen of vehicle crash test dummy

A method for determining a peak position of lower extremity injury in a crash test dummy includes: controlling the movement of the collision surface until the control point of the collision surface and the first designated collision point of the dummy's lower extremity form a line parallel to the direction of the vehicle acceleration, with a predetermined distance between the control point and the first designated collision point. A collision simulation calculation is performed to obtain the first tibial index curve, the first knee displacement curve, and the first thigh force curve. Similarly, the second designated collision point is used to obtain the second tibial index curve, the second knee displacement curve, and the second thigh force curve. Then, the injury values are calculated, and by comparing the injury values at different positions, the peak position is determined.

Method, device, and medium for determining peak position of lower extremity injury in a crash test dummy

A method for testing the lumbar spine performance of a crash test dummy includes the following steps: selecting a lumbar spine performance test item; collecting data of at least one preset physical quantity during the collision process between the pendulum and the energy-absorbing buffer block through sensors on the lumbar spine assembly; determining whether the data of each preset physical quantity is within the corresponding data channel; if the data of each preset physical quantity is within the corresponding data channel, the lumbar spine assembly is deemed qualified for the current lumbar spine performance test item. This disclosure evaluates the quality of the lumbar spine performance of crash test dummies, allowing only those with better lumbar spine performance to participate in crash tests, and therefore improving the consistency and accuracy of different crash test dummies' response in crash tests.

Method, medium, and device for testing lumbar spine performance of a crash test dummy

Growing community of inventors

Tianjin, China

Kai Wang