Characteristics of calculus fragmentation with Er:YAG laser light emitted by an infrared hollow optical fiber with various sealing caps

Appl Opt. 2005 Jun 1;44(16):3266-70. doi: 10.1364/ao.44.003266.

Abstract

We have experimentally quantified calculus fragmentation by Er:YAG laser light. Er:YAG laser light was delivered to an underwater target through a sealed hollow optical fiber. Fragmentation efficiency was obtained for an alumina ball used as a calculus model when sealing caps with various focusing effects were used. Three types of human calculus were analyzed, and their absorption properties at the wavelength of Er:YAG laser light were obtained. The relationships among the absorption properties, calculus constituents, and fragmentation efficiency are discussed.

Publication types

  • Evaluation Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Calculi / chemistry
  • Calculi / classification*
  • Calculi / therapy*
  • Dose-Response Relationship, Radiation
  • Equipment Design
  • Equipment Failure Analysis
  • Fiber Optic Technology / instrumentation*
  • Humans
  • Infrared Rays / therapeutic use*
  • Laser Therapy*
  • Lithotripsy, Laser / methods*
  • Optical Fibers
  • Transducers
  • Treatment Outcome