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Hydraulic Robotic Surgical Tool Changing Manipulator.

Abolfazl Pourghodrat1, Carl A Nelson2, Dmitry Oleynikov3

  • 1Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, W342 Nebraska Hall, Lincoln, NE 68588-0526

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This study introduces a new hydraulic robotic manipulator for Natural Orifice Transluminal Endoscopic Surgery (NOTES). This innovative tool enables faster, lower-cost, and more efficient multitasking during scarless abdominal operations.

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Area of Science:

  • Minimally Invasive Surgery
  • Robotics
  • Surgical Instrumentation

Background:

  • Natural orifice transluminal endoscopic surgery (NOTES) offers scarless abdominal operations but faces limitations.
  • Current robotic systems for NOTES often lack multitasking platforms, requiring manual tool exchange.
  • Manual tool exchange in NOTES is time-consuming and risks complications like bleeding.

Purpose of the Study:

  • To design, prototype, and test a novel hydraulic robotic tool-changing manipulator for NOTES.
  • To overcome the limitations of existing robotic manipulators in terms of size, speed, and cost.
  • To enhance the multitasking capabilities of robotic platforms in NOTES procedures.

Main Methods:

  • Development of a hydraulic-powered robotic manipulator.
  • Integration of a tool-changing mechanism capable of holding multiple instruments.
  • Prototyping and functional testing of the hydraulic robotic manipulator.

Main Results:

  • The developed hydraulic robotic manipulator is compact and operates rapidly.
  • The system demonstrates a low-cost design compared to electric motor-driven alternatives.
  • The manipulator successfully carries four different types of laparoscopic instruments, enabling multitasking.

Conclusions:

  • The hydraulic robotic tool-changing manipulator represents a significant advancement for NOTES.
  • This technology addresses the need for efficient multitasking platforms in scarless surgery.
  • The design offers a promising solution for improving the feasibility and safety of robotic NOTES.