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Updated: May 25, 2026

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Design and Fabrication of an Elastomeric Unit for Soft Modular Robots in Minimally Invasive Surgery
Published on: November 14, 2015
Algorithms for Design of Continuum Robots Using the Concentric Tubes Approach: A Neurosurgical Example
Tomer Anor1, Joseph R Madsen, Pierre Dupont
1Department of Neurosurgery, Children's Hospital Boston, Harvard Medical School, Boston, MA 02115 USA ( Tomer.Anor@childrens.harvard.edu ).
Summary
We developed a new method to design optimal concentric tube robots for brain surgery. This approach ensures robots can reach target sites in constrained spaces, simplifying complex neurosurgical procedures.
Area of Science:
- Robotics
- Neurosurgery
- Medical Device Design
Background:
- Neurosurgical procedures require precise instrument navigation within confined anatomical spaces.
- Existing robotic systems may face challenges in dexterity and maneuverability for delicate brain operations.
Purpose of the Study:
- To present a systematic approach for optimizing the design of concentric tube robots for neurosurgical applications.
- To develop a method for designing robots capable of reaching target sites in constrained workspaces.
Main Methods:
- A novel parameterization of robot characteristics was employed.
- Global pattern search optimization was utilized for design optimization.
- The approach considers fixed-curvature versus variable-curvature sections.
Main Results:
- The method returns the least-complex robot design for reaching target points under constrained metrics.
- The approach successfully identified design requirements, including curvature type.
- Performance was demonstrated through four clinically relevant examples, including endoscopic choroid plexus ablation.
Conclusions:
- The proposed systematic design optimization approach is effective for concentric tube robots in neurosurgery.
- This method facilitates the creation of robots suited for navigating complex anatomical environments.
- The approach enhances the feasibility of minimally invasive neurosurgical interventions.

