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Computerized endoscopic surgical grasper.

B Hannaford1, J Trujillo, M Sinanan

  • 1Department of Electrical Engineering, University of Washington, Seattle 98195, USA.

Studies in Health Technology and Informatics
|December 8, 1997
PubMed
Summary
This summary is machine-generated.

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This study introduces a computerized surgical grasper with haptic feedback for precise force control. The device successfully differentiated between various normal tissues, showing potential for advanced surgical applications.

Area of Science:

  • Surgical Technology
  • Robotics
  • Biomedical Engineering

Background:

  • Minimally invasive surgery requires advanced instrumentation for precise tissue manipulation.
  • Current endoscopic graspers lack sophisticated force feedback mechanisms, limiting tactile sensation for surgeons.

Purpose of the Study:

  • To develop and evaluate a computerized endoscopic surgical grasper with computer control and haptic feedback.
  • To assess the system's ability to measure mechanical tissue properties through automated palpation.

Main Methods:

  • The system integrates standard endoscopic grasper components with computer control and a force feedback interface.
  • An automated palpation function was implemented, applying programmed squeezes to measure tissue mechanical properties.
  • The grasper's performance was tested on various normal tissues including small bowel, lung, spleen, liver, colon, and stomach.

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Main Results:

  • The computerized grasper demonstrated the ability to control grasping forces via direct surgeon control, teleoperation, or software control.
  • Automated palpation successfully discriminated between different normal tissues based on their mechanical properties.
  • The system proved effective in differentiating tissues such as small bowel, lung, spleen, liver, colon, and stomach.

Conclusions:

  • The developed computerized endoscopic surgical grasper with haptic feedback offers enhanced control and tissue characterization capabilities.
  • This technology holds significant potential for applications in telesurgery, clinical endoscopic surgery, surgical training, and research.
  • Automated palpation using this device provides a novel method for objective tissue property assessment during surgery.