A Parallel Robotic System with Force Sensors for Percutaneous Procedures Under CT-Guidance

摘要

This paper presents a new robotic framework for assisted CT-guided percutaneous procedures with force feedback and automatic patient-to-image registration of needle. The purpose is to help practitioners in performing accurate needle insertion while preserving them from harmful intra-operative X-rays imaging devices. Starting from medical requirements for needle insertions in the liver under CT-scan, a description of a dedicated parallel robot is made. Its geometrical and physical properties are explained. The design is mainly based on the accuracy and safety constraints. A real prototype is presented that is currently tested.