Erbium:YAG laser lithotripsy by use of a flexible hollow waveguide with an end-scaling cap

被引：26

作者：

Iwai, K ^{[1
]}

Shi, YW

Nito, K

Matsuura, Y

Kasai, T

Miyagi, M

Saito, S

Arai, Y

Ioritani, N

Okagami, Y

Nemec, M

Sulc, J

Jelinkova, H

Zavoral, M

Kohler, O

Drlik, P

机构：

[1] Tohoku Univ, Grad Sch Engn, Aoba Ku, Sendai, Miyagi 9808579, Japan

[2] Tohoku Univ Hosp, Dept Urol, Aoba Ku, Sendai, Miyagi 9808574, Japan

[3] Sendai Syakaihoken Hosp, Dept Urol, Aoba Ku, Sendai, Miyagi 9818501, Japan

[4] Morita Corp, Fushimi Ku, Res & Dev Grp, Kyoto 6128533, Japan

[5] Czech Tech Univ, Fac Nucl Sci & Phys Engn, CR-11519 Prague 1, Czech Republic

[6] Cent Mil Hosp, Dept Internal Med 2, Prague 6, Czech Republic

[7] Cent Mil Hosp, Urol Clin, Prague 6, Czech Republic

来源：

APPLIED OPTICS | 2003年 / 42卷 / 13期

关键词：

D O I：

10.1364/AO.42.002431

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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. (C) 2003 Optical Society of America.

引用

页码：2431 / 2435

页数：5

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