Average-power mediated ultrafast laser osteotomy using a mode-locked Nd:YVO4 laser oscillator

被引:14
作者
Lee, Y. M. [1 ]
Tu, R. Y. [2 ]
Chiang, A. C. [3 ]
Huang, Y. C. [2 ]
机构
[1] Hsinchu Mackay Mem Hosp, Dept Surg, Hsinchu 300, Taiwan
[2] Natl Tsing Hua Univ, Inst Photon Technol, Hsinchu 30013, Taiwan
[3] Natl Tsing Hua Univ, Nucl Sci & Technol Dev Ctr, Hsinchu 30013, Taiwan
关键词
lasers in medicine; laser-induced damage; ultrafast phenomena; thermal effects; neodymium lasers; laser applications;
D O I
10.1117/1.2821149
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
By using a novel temporal characterization technique, we determined that a threshold average laser power of 160 mW is required to drill through a 0.75-mm-thick cortical bone for a Nd: YVO(4) mode-locked laser oscillator with a peak intensity of 1.3 GW/cm(2). The ablation mechanism is identified as average-power induced carbonization followed by peak-power induced avalanche ionization in the carbonized osseous tissue. (C) 2007 Society of Photo-Optical Instrumentation Engineers.
引用
收藏
页数:3
相关论文
共 10 条
[1]  
CHALTON A, 1990, LASER MED SCI, V54, P365
[2]   Residual heat deposition in dental enamel during IR laser ablation at 2.79, 2.94, 9.6, and 10.6 μm [J].
Fried, D ;
Ragadio, J ;
Champion, A .
LASERS IN SURGERY AND MEDICINE, 2001, 29 (03) :221-229
[3]   Effects of femtosecond laser irradiation on osseous tissues [J].
Girard, B. ;
Yu, D. ;
Armstrong, M. R. ;
Wilson, B. C. ;
Clokie, C. M. L. ;
Miller, R. J. Dwayne .
LASERS IN SURGERY AND MEDICINE, 2007, 39 (03) :273-285
[4]  
IVANENKO M, 2005, P SOC PHOTO-OPT INS, V5863, P1
[5]   Influence of pulse duration on ultrashort laser pulse ablation of biological tissues [J].
Kim, BM ;
Feit, MD ;
Rubenchik, AM ;
Joslin, EJ ;
Celliers, PM ;
Eichler, J ;
Da Silva, LB .
JOURNAL OF BIOMEDICAL OPTICS, 2001, 6 (03) :332-338
[6]   BONE ABLATION WITH ER-YAG AND CO-2 LASER - STUDY OF THERMAL AND ACOUSTIC EFFECTS [J].
LI, ZZ ;
REINISCH, L ;
VANDEMERWE, WP .
LASERS IN SURGERY AND MEDICINE, 1992, 12 (01) :79-85
[7]   Ablation of femural bone with femtosecond laser pulses - a feasibility study [J].
Liu, Yifei ;
Niemz, Markolf .
LASERS IN MEDICAL SCIENCE, 2007, 22 (03) :171-174
[8]   PHYSICS OF THERMAL-PROCESSES IN LASER TISSUE INTERACTION [J].
MCKENZIE, AL .
PHYSICS IN MEDICINE AND BIOLOGY, 1990, 35 (09) :1175-1209
[9]   Ultrashort pulse lasers for hard tissue ablation [J].
Neev, J ;
DaSilva, LB ;
Feit, MD ;
Perry, MD ;
Rubenchik, AM ;
Stuart, BC .
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, 1996, 2 (04) :790-800
[10]   LASER-INDUCED DAMAGE IN DIELECTRICS WITH NANOSECOND TO SUBPICOSECOND PULSES [J].
STUART, BC ;
FEIT, MD ;
RUBENCHIK, AM ;
SHORE, BW ;
PERRY, MD .
PHYSICAL REVIEW LETTERS, 1995, 74 (12) :2248-2251