OPTICAL FIBER DELIVERY AND TISSUE ABLATION STUDIES USING A PULSED HYDROGEN-FLUORIDE LASER

被引：7

作者：

DYER, PE ^{[1
]}

KHOSROSHAHI, ME ^{[1
]}

TUFT, SJ ^{[1
]}

机构：

[1] MOORFIELDS EYE HOSP,LONDON EC1V 2PD,ENGLAND

来源：

LASERS IN MEDICAL SCIENCE | 1992年 / 7卷 / 03期

关键词：

INFRARED LASER; FIBER DELIVERY; TISSUE ABLATION; OCULAR TISSUE;

D O I：

10.1007/BF02594070

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

We describe an experimental study of the transmission of pulsed, multiline (2.67-2.95 μm) hydrogen fluoride (HF) laser radiation in a fluoride glass fibre. For a 400 ns full-width at half-maximum (fwhm) duration laser pulse transmission measurements and photoacoustic techniques show that non-linear loss at the fibre input surface appears to set a maximum useful input fluence of ∼15 J cm-2 for the 500 μm core diameter fibre used. However, with modest length fibres, exit fluence levels adequate for the ablation of soft tissue can be obtained with the fibre operating well below this limiting value. Removal rate measurements and scanning electron microscope evaluation of the irradiated site for bovine cornea ablated using the fibre-delivered HF laser pulses are reported. © 1992 Baillière Tindall.

引用

页码：331 / 340

页数：10

共 27 条

[1]

BONNER RF, 1986, SPIE OPTICAL FIBERS, V713, P2

[2] SIMPLE ELECTRODE CONFIGURATION FOR UV INITIATED HIGH-POWER TEA LASER DISCHARGES [J].