Title of article
Erbium:YAG Laser Lithotripsy by Use of a Flexible Hollow Waveguide with an End-Scaling Cap
Author/Authors
Shi، Yi-Wei نويسنده , , Matsuura، Yuji نويسنده , , Miyagi، Mitsunobu نويسنده , , Iwai، Katsumasa نويسنده , , Saito، Seichi نويسنده , , Arai، Youichi نويسنده , , Nito، Koh نويسنده , , Kasai، Takao نويسنده , , Ioritani، Naomasa نويسنده , , Okagami، Yoshihide نويسنده , , Nemec، Michal نويسنده , , Sulc، Jan نويسنده , , Jelinkova، Helena نويسنده , , Zavoral، Miroslav نويسنده , , Kohler، Oto نويسنده , , Drlik، Pavel نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2003
Pages
-2430
From page
2431
To page
0
Abstract
An Er:YAG laser light delivery system composed of a polymer-coated silver hollow waveguide and a quartz sealing cap has been developed for calculus fragmentation. Sealing caps with various distal-end geometries were fabricated, and the focusing effects of these caps for Er:YAG laser light were measured both in air and in water. Owing to the high power capability of the quartz sealing caps, a beam of Er:YAG laser light with an output energy of 200 mJ and a repetition rate of 10 Hz was successfully transmitted in saline solution by use of the system. Calculus fragmentation experiments conducted in vitro showed that the delivery system is suitable for medical applications in lithotripsy. We also found that the cap with a focusing effect is more effective in cutting calculi. The deterioration of the sealing caps after calculus fragmentation is also discussed.
Keywords
Spectral density function , harmonizable functions , Estimation , covariance , Bias , cyclostationary , aliasing , Consistency , Doppler , multipath
Journal title
Applied Optics
Serial Year
2003
Journal title
Applied Optics
Record number
76014
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