Primary investigations on the potential of a novel diode pumped Er:YAG laser system for bone surgery

Karl Stock; Rolf Diebolder; Florian Hausladen; Holger Wurm; Swetlana Lorenz; Raimund Hibst

doi:10.1117/12.2004123

8 March 2013 Primary investigations on the potential of a novel diode pumped Er:YAG laser system for bone surgery

Karl Stock, Rolf Diebolder, Florian Hausladen, Holger Wurm, Swetlana Lorenz, Raimund Hibst

Proceedings Volume 8565, Photonic Therapeutics and Diagnostics IX; 85656D (2013) https://doi.org/10.1117/12.2004123
Event: SPIE BiOS, 2013, San Francisco, California, United States

Abstract

Flashlamp pumped Er:YAG-lasers are successfully clinically used for both precise soft and hard tissue ablation. As an alternative, actually a novel diode pumped Er:YAG laser system (Pantec Engineering AG) becomes available, with mean laser power up to 15W and pulse repetition rate up to 1kHz. The aim of the presented study is to investigate the effect of this laser system on bone tissue at various irradiation parameters, particular at repetition rates exceeding 100 Hz. For reproducible experiments, firstly an appropriate experimental set-up was realized with a beam delivery and focusing unit, a computer controlled stepper unit with sample holder, and a shutter unit. It allowed to move the sample (1mm- 3mm sawed slices of pig bone) with a defined velocity while irradiation by various laser parameters. A water spray served to moisten the sample surfaces. After irradiation the grooves were analyzed by light microscopy and laser scanning microscopy regarding to the ablation quality, the groove geometry, the ablation efficacy, and the thermal effects. The resulting grooves are slightly cone shaped (groove depth up to 3mm, width about 200μm) with sharp edges at the surface. At 1W, 200Hz, 5mm/s sample movement and with water irrigation the measured ablation speed Δz/Δt is 10.8 mm/s. The ablation depth per pulse is 54μm. In conclusion, these first experiments demonstrate that the diode pumped Er:YAG laser system is an efficient tool for use in bone surgery.

Citation Download Citation

Karl Stock, Rolf Diebolder, Florian Hausladen, Holger Wurm, Swetlana Lorenz, and Raimund Hibst "Primary investigations on the potential of a novel diode pumped Er:YAG laser system for bone surgery", Proc. SPIE 8565, Photonic Therapeutics and Diagnostics IX, 85656D (8 March 2013); https://doi.org/10.1117/12.2004123

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available