This work explores the feasibility of creating and accurately controlling an instrument for robotic surgery with a 2 mm diameter and a three degree-of-freedom (DoF) wrist which is compatible with the da Vinci platform. The instrument’s wrist is composed of a two DoF bending notched-nitinol tube pattern, for which a kinematic model has been developed. A base mechanism for controlling the wrist is designed for integration with the da Vinci Research Kit. A basic teleoperation task is successfully performed using two of the miniature instruments. The performance and accuracy of the instrument suggest that creating and accurately controlling a 2 mm diameter instrument is feasible and the design and modelling proposed in this work provide a basis for future miniature instrument development.
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Francis, P., Eastwood, K.W., Bodani, V. et al. Design, Modelling and Teleoperation of a 2 mm Diameter Compliant Instrument for the da Vinci Platform. Ann Biomed Eng 46, 1437–1449 (2018) doi:10.1007/s10439-018-2036-4
- Surgical robotics
- Dexterous manipulators
- Compliant joints
- Miniature instruments