Shanghai Operation Robot Co., Ltd.

Shanghai Microport Ep Medtech Co., Ltd.

Shanghai Microport Orthopedics Co., Ltd.

Daozhi Liu

Yikun Liu

Jie Li

Dong Liu

Meng Li

Yiyong Sun

Zhongwei Yu

Kundong Wang

Jingjing Gong

Qingsheng Lu

Xiaoyi Wen

Liangle Zhu

Guanlin Zhou

Zhenjie Lv

Huasheng Cheng

Guowang Zhang

Shun Wang

Changsheng Ma

Ming Ye

Junmin Guo

Mechanical fingers for clamping catheters, guild wires, and the like equipment for vascular intervention include a left clamping panel, a right clamping panel, left gathering pieces, right gathering pieces, a linear-propelling mechanism, and a frame. The linear-propelling mechanism is arranged on the frame. The left clamping panel and the right clamping panel are oppositely arranged, and are each arranged on the linear-propelling mechanism. The left gathering pieces and the right gathering pieces are arranged on the left clamping panel and the right clamping panel, respectively. The linear-propelling mechanism drives the left clamping panel and the right clamping panel to move towards or move away from each other. The mechanical fingers can realize adaptive clamping for intervening equipment in a widely varying diameter range. The clamping surfaces of panels in the mechanical fingers are provided with grid-and-stripe microstructures and are made from resilient materials.

Elastic gathered automatically centering panel clamping mechanical fingers for vascular intervention

A bi-planar robotic arm device for vascular interventional surgery includes an operating table, a frame assembly, an outer arm assembly, and an inner arm assembly. The frame assembly includes a standing column, a sliding block, a sliding platform, a support, and a screw stepper motor. The standing column is arranged on the operating table. The support is arranged on the standing column. The sliding platform is arranged on the support. The sliding platform is connected to the sliding block. The sliding block is connected to the screw stepper motor and can slide along the sliding platform under the action of the screw stepper motor. The outer arm assembly is connected to the standing column. The inner arm assembly is connected to the outer arm assembly and the sliding block. The inner arm assembly and the outer arm assembly can move relative to each other.

Bi-planar robotic arm device for vascular interventional surgery

The present application relates to an image registration method, comprising: selecting a registration source image {p} and a registration target image {q}; applying a random perturbation to {p} in accordance with a preset random perturbation control parameter &#x3c3; so that it is deformed to obtain {p'}, and obtaining a set of closest points, i.e., {g&#x2032;}, on {q} corresponding to points on {p&#x2032;}; performing an iterative operation on {p&#x2032;} and {q&#x2032;} in accordance with a preset initial coordinate transformation Hto obtain a coordinate transformation {H}, 0&#x3c;I&#x3c;=L, between {p&#x2032;} and {q&#x2032;}, and calculating an average distance {E} corresponding to the coordinate transformation {H} in accordance with the coordinate transformation {H}; judging magnitudes of the average distance {E} and a preset ideal average distance E, and terminating the registration when the average distance {E} is smaller than or equal to the preset ideal average distance.

Image registration method

A bone screw comprises a threaded portion. The threaded portion has a first thread including a first front surface (), a first back surface () and a crest. A second thread including a second front surface () and a second back surface () is formed on at least part of the crest of the first thread. Because of the presence of the second thread, a contact area between the screw and a bone and an axial pullout force-bearing area are both significantly increased, without significantly influencing the bending resistance, so that the mechanical property of the screw is entirely improved.

Bone screw

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Shanghai, China

Daozhi Liu