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IRIS: Integrated Robotic Intraocular Snake.

Xingchi He1, Vincent van Geirt2, Peter Gehlbach3

  • 1Mechanical Engineering Department, Johns Hopkins University, Baltimore, MD 21218, USA.

IEEE International Conference on Robotics and Automation : ICRA : [Proceedings]. IEEE International Conference on Robotics and Automation
|September 26, 2015
PubMed
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This study introduces the Integrated Robotic Intraocular Snake (IRIS), a dexterous robot for retinal surgery. The sub-millimeter robot offers enhanced precision and flexibility for complex intraocular procedures.

Area of Science:

  • Ophthalmology
  • Robotics
  • Medical Devices

Background:

  • Retinal surgery is highly complex and demands exceptional dexterity.
  • Existing robotic systems often lack the necessary precision for advanced intraocular procedures.

Purpose of the Study:

  • To present the Integrated Robotic Intraocular Snake (IRIS), a novel sub-millimeter dexterous robot for intraocular surgery.
  • To demonstrate the feasibility and capabilities of the IRIS system for enhanced surgical performance.

Main Methods:

  • Development of a sub-millimeter robot featuring a variable neutral-line mechanism for high dexterity.
  • Implementation of a distal dexterous unit (0.9 mm diameter, 3 mm length) with two rotational degrees of freedom.
  • Utilizing redundant actuation, contact mechanics analysis, and a motion scaling transmission.

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Main Results:

  • A scale-up model demonstrated a large range of motion.
  • The kinematic model accurately estimated wire translation under low friction conditions.
  • The first actual-scale prototype of the IRIS was successfully assembled and tested.

Conclusions:

  • The Integrated Robotic Intraocular Snake (IRIS) offers significant potential for advancing retinal surgery.
  • The system's sub-millimeter scale and high dexterity enable more flexible and advanced intraocular procedures.