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Related Experiment Video

Updated: Jun 10, 2026

Measurement of Tension Release During Laser Induced Axon Lesion to Evaluate Axonal Adhesion to the Substrate at Piconewton and Millisecond Resolution
09:31

Measurement of Tension Release During Laser Induced Axon Lesion to Evaluate Axonal Adhesion to the Substrate at Piconewton and Millisecond Resolution

Published on: May 27, 2013

A 2-microm continuous-wave laser system for safe and high-precision dissection during NOTES procedures.

Xavier Dray1, Gianfranco Donatelli, Devi Mukkai Krishnamurty

  • 1Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.

Digestive Diseases and Sciences
|August 13, 2010
PubMed
Summary

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A 2-microm laser system demonstrated effective and safe tissue dissection for Natural Orifice Translumenal Endoscopic Surgery (NOTES) procedures. This laser technology offers precise cutting and excellent hemostasis with minimal thermal damage.

Area of Science:

  • Minimally Invasive Surgery
  • Medical Lasers
  • Surgical Technology

Background:

  • 2-microm wavelength lasers provide efficient tissue cutting with minimal thermal damage.
  • Natural Orifice Translumenal Endoscopic Surgery (NOTES) requires advanced dissection tools.

Purpose of the Study:

  • To evaluate the dissection capabilities of a 2-microm continuous-wave laser for NOTES procedures.
  • Assess the safety and efficacy of laser-assisted dissection in animal models.

Main Methods:

  • 18 acute animal experiments were conducted using transcolonic and transgastric access.
  • A 2-microm continuous-wave laser was used for translumenal access and dissection.
  • Comparison with needle-knife techniques for access and dissection efficacy.

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Related Experiment Videos

Last Updated: Jun 10, 2026

Measurement of Tension Release During Laser Induced Axon Lesion to Evaluate Axonal Adhesion to the Substrate at Piconewton and Millisecond Resolution
09:31

Measurement of Tension Release During Laser Induced Axon Lesion to Evaluate Axonal Adhesion to the Substrate at Piconewton and Millisecond Resolution

Published on: May 27, 2013

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Optogenetic Stimulation of the Auditory Nerve
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Main Results:

  • Translumenal access was achieved significantly faster with the laser technique (2-3 min) compared to needle-knife (4-5 min).
  • Laser dissection enabled precise cutting, excellent hemostasis, and safe access to retroperitoneal structures, including removal of a hematoma.
  • No damage to targeted or surrounding tissues was observed post-procedure.

Conclusions:

  • The 2-microm continuous-wave laser system shows significant promise for precise and safe dissection in NOTES procedures.
  • This laser technology facilitates efficient translumenal access and complex dissection tasks with minimal collateral thermal damage.