Abstract
This paper proposes a new 4-Degree-of-Freedom (DOF) master-slave system for 3 dimensional needle steering. Both master and slave devices are commonly composed of a 3 DOF spherical type parallel mechanism and a 1 DOF needle insertion mechanism. This system provides users with 3 dimensional needle steering and force reflection capabilities. The real time forward solution of the master device is addressed. The design of the master-slave system is described in detail. Finally, the effectiveness of this system for 3 dimensional needle steering task is verified through experimental work.
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