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Development of an earthworm-based soft robot for colon sampling.

Gongxin Li1, Wei Qiu1, Mindong Wang1

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A novel earthworm-like soft robot enables patient-friendly colon sampling for colorectal cancer. This advancement offers a non-destructive method for improved intestinal disease examination and diagnosis.

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Area of Science:

  • Medical robotics
  • Gastroenterology
  • Biomedical engineering

Background:

  • Colorectal cancer incidence is rising, necessitating effective diagnostic tools.
  • Current colon examinations like gastroscopy can be invasive and uncomfortable for patients.
  • Existing intestinal soft robots lack essential functionalities like sample collection.

Purpose of the Study:

  • To design and develop a soft robot capable of non-destructive sample collection within the colon.
  • To create an earthworm-like robot with enhanced maneuverability in confined intestinal environments.
  • To introduce a novel approach for improved colorectal cancer screening and diagnosis.

Main Methods:

  • Development of an earthworm-like soft robot with a flexible, elephant trunk-inspired sampling arm.
  • Testing the robot's capabilities for flexible movement and bidirectional bending sample collection.
  • Evaluation of the soft robot in a colon-like environment to demonstrate feasibility.

Main Results:

  • The designed soft robot successfully demonstrated flexible movement within a colon-like environment.
  • The robot's sampling part effectively collected samples using its bidirectional bending capability.
  • Feasibility of soft robot-based colon sampling for non-destructive inspection was confirmed.

Conclusions:

  • Soft robots offer a promising, patient-friendly alternative for colon examinations and sample collection.
  • This earthworm-like soft robot represents a significant advancement in medical robotics for intestinal diagnostics.
  • The developed technology has the potential for more efficient and accurate diagnosis of colorectal cancer and other intestinal diseases.