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Related Experiment Video

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Fabrication and Characterization of a Conformal Skin-like Electronic System for Quantitative, Cutaneous Wound Management
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The Ultrachopper tip: a wound temperature study.

William R Barlow1, Jeff Pettey, Randall J Olson

  • 1Department of Ophthalmology and Visual Sciences, John A. Moran Eye Center, University of Utah, Salt Lake City, Utah.

Canadian Journal of Ophthalmology. Journal Canadien D'Ophtalmologie
|December 10, 2013
PubMed
Summary
This summary is machine-generated.

The Ultrachopper generates significant heat in ophthalmic viscosurgical substances (OVDs), exceeding safe limits within seconds. This heat risk is higher with OVDs than balanced salt solution (BSS).

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Area of Science:

  • Ophthalmology
  • Surgical Technology
  • Biomedical Engineering

Background:

  • Cataract surgery utilizes phacoemulsification devices like the Ultrachopper.
  • Understanding the thermal properties of surgical instruments is crucial for patient safety.
  • Ophthalmic viscosurgical devices (OVDs) are used during surgery to maintain space and protect tissues.

Purpose of the Study:

  • To evaluate the thermal characteristics of the Ultrachopper tip.
  • To assess the heat generated by the Ultrachopper in various ophthalmic viscosurgical substances (OVDs) and balanced salt solution (BSS).

Main Methods:

  • An experimental study was conducted using the Ultrachopper tip and Infiniti handpiece.
  • A thermistor was attached to the tip and placed in a test chamber containing OVD or BSS.
  • Temperature was continuously monitored for 60 seconds of run time.

Main Results:

  • Mean maximum temperatures in OVDs exceeded 50°C within 25 seconds.
  • Temperatures were significantly higher in OVDs compared to BSS (p < 0.0001).
  • A statistically significant difference in temperature was observed between Healon 5 and Viscoat (p < 0.05).

Conclusions:

  • The Ultrachopper tip generates heat that reaches levels associated with wound burn risk.
  • The use of OVDs exacerbates the heat generation compared to BSS.
  • Further research may be needed to mitigate thermal risks during phacoemulsification.