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Soft Robotic Deployable Origami Actuators for Neurosurgical Brain Retraction
Tomas Amadeo1, Daniel Van Lewen1, Taylor Janke1
1Mechanical Engineering Department, Boston University, Boston, MA, United States.
Frontiers in Robotics and AI
|January 31, 2022
Summary
Neurosurgeons face risks when using metallic tools near delicate brain tissue. This study introduces a novel soft robotic brain retractor designed for safer, minimally invasive surgical workspaces.
Area of Science:
- Neurosurgery
- Soft Robotics
- Biomedical Engineering
Background:
- Metallic surgical instruments pose risks of damage to delicate neurological tissue.
- Current tools lack compliance, limiting minimally invasive approaches.
- Soft robotics offers potential for safer, more adaptable surgical tools.
Purpose of the Study:
- To present a novel soft robotic brain retractor for atraumatic surgical workspace generation.
- To address the need for safer, compliant tools in neurosurgery.
- To explore origami-inspired designs for deployable surgical devices.
Main Methods:
- Design and fabrication of a pneumatically actuated, origami-inspired brain retractor.
- Analytical modeling to predict device behavior.
- Experimental characterization and in-vitro validation using a brain model.
Main Results:
- The developed soft robotic retractor demonstrated potential for atraumatic workspace generation.
- Analytical models provided insights into device mechanics.
- In-vitro tests confirmed the device's feasibility on a brain model.
Conclusions:
- Soft robotic technologies can significantly improve the safety and compliance of neurosurgical tools.
- The presented origami-inspired retractor offers a promising approach for minimally invasive neurosurgery.
- Further development could lead to advanced atraumatic surgical instruments.

