The Navigation and Positioning Method of Active plus Passive Ultrasound-Guided Robot for Liver Cancer Coagulation Therapy

Author:

Cao Ying Yu1,Qi Bo Jin2,Wang Shao Xian3,Cui Wei Tao3

Affiliation:

1. Beihang University

2. School of Mechanical Engineering and Automation, Beihang University

3. Beijing Institute of Petrochemical Technology

Abstract

The navigation and positioning of medical robot was the precondition of taking the medical robot-assisted surgery. The navigation and positioning method of ultrasound-guided robot for liver cancer coagulation therapy was introduced. This paper presented the positioning method of different functions of robot based on the characteristics of active plus passive robot. The homologous point least squares matching method was employed for the robot 3D platform and the space vector calculation method was used for the robot RCM structure arm. The experimental results show that the robot positioning error is 1.32 ± 0.83mm, and the average positioning time is 5.5s, which can meet the requirements on the positioning accuracy, positioning time and operating flexibility of the liver cancer coagulation therapy.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

Reference5 articles.

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2. Zhu yabju, Meng cai, Liu jinghua. The vision-calibration method facing robot-assisted neurosurgery[J]. high technology letters, 2004, 14(11): 69-74.

3. Pan Feng, Wu Wei, Yang Yilu. Coordinate Mapping of Brain Surgery Robot System Based on Vision Localization[J]. Journal of Northeastern University (Natural Science), 2005, 26(5): 413-416.

4. Stoianovici D. URobotics-urology robotics at Johns Hopkins [J]. Computer Aided Surgery, 2001, 6(6): 360-369.

5. Masamune K, Fichtinger G, Patriciu A, et al. System for robotically assisted percutaneous procedures with computed tomography guidance[J]. Computer Aided Surgery, 2001, 6(6): 370-383.

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