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Related Experiment Videos

Deflectable endoscopic instrument system DENIS

A Melzer1, K Kipfmüller, B Halfar

  • 1Institute for Diagnostic and Interventional Radiology, University Witten/Herdecke, Mülheim/Ruhr, Germany.

Surgical Endoscopy
|October 8, 1997
PubMed
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This study introduces a novel deflectable endoscopic instrument for laparoscopic surgery, enhancing tissue manipulation. The new instrument offers improved articulation and control, demonstrating feasibility in clinical applications.

Area of Science:

  • Minimally Invasive Surgery
  • Surgical Instrumentation
  • Medical Device Development

Background:

  • Standard rigid instruments in laparo-endoscopic surgery offer limited intraoperative movement.
  • Enhanced distal angulation and rotation of instrument jaws represent a significant potential improvement.

Purpose of the Study:

  • To develop and evaluate a novel articulated endoscopic instrument system.
  • To assess the feasibility and clinical applicability of a deflectable instrument for laparoscopic surgery.

Main Methods:

  • Development and testing of articulated instruments in phantom and animal models.
  • Clinical evaluation of the final prototype in 30 patients undergoing laparoscopic surgery.

Main Results:

Related Experiment Videos

  • The final instrument design features elastically linked segments with 0-120 degrees variable curvature and +/- 360 degrees jaw rotation.
  • One-handed operation and improved handling of organs and tissues were observed during phantom and clinical testing.
  • No complications were reported during the laparoscopic surgery trials.

Conclusions:

  • The technical design and clinical applicability of the deflectable endoscopic instrument system are feasible.
  • Initial results suggest improved laparoscopic tissue manipulation capabilities.
  • Further technical refinement of deflection and jaw rotation is recommended for optimal performance.