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arXiv 1901.03327cs.ROcs.AIcs.LGstat.ML

A New Tensioning Method using Deep Reinforcement Learning for Surgical Pattern Cutting

Institute for Intelligent Systems Research and Innovation, Deakin University(迪肯大学智能系统研究与创新研究所);Imperial College London(伦敦帝国理工学院)

Thanh Thi Nguyen, Ngoc Duy Nguyen, Fernando Bello, Saeid Nahavandi

英文摘要:

Surgeons normally need surgical scissors and tissue grippers to cut through a deformable surgical tissue. The cutting accuracy depends on the skills to manipulate these two tools. Such skills are part of basic surgical skills training as in the Fundamentals of Laparoscopic Surgery. The gripper is used to pinch a point on the surgical sheet and pull the tissue to a certain direction to maintain the tension while the scissors cut through a trajectory. As the surgical materials are deformable, it requires a comprehensive tensioning policy to yield appropriate tensioning direction at each step of the cutting process. Automating a tensioning policy for a given cutting trajectory will support not only the human surgeons but also the surgical robots to improve the cutting accuracy and reliability. This paper presents a multiple pinch point approach to modelling an autonomous tensioning planner based on a deep reinforcement learning algorithm. Experiments on a simulator show that the proposed method is superior to existing methods in terms of both performance and robustness.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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