Abstract
The application of specially designed delivery system consisted of cyclic olefin polymer coated silver hollow glass waveguide (inner/outer diameter 700/850 μm) with protector in one side and sealed cap in the output is shown for treatment of ureter wall perforation by Er:YAG laser radiation. For this purpose Er:YAG laser system (wavelength 2.94 μm) working in free-running and Q-switched regime was utilized. The basic characteristic of the interaction of Er:YAG laser radiation with the ureter surface and its deep structures was found. Maximum interaction pulse energy and length in free-running regime were 100 mJ and 200 μs, respectively (corresponding intensity 130 kW.cm -2). Maximum interaction pulse energy and length in Q-switched regime were 30 mJ and 70 ns, respectively (corresponding intensity 111 MW.cm -2). From the histological evaluation it follows that the application of Q-switched Er:YAG laser radiation on ureter tissue resulted in minimum tissue alteration without any influence on the deeper layers.
| Original language | English |
|---|---|
| Article number | 24 |
| Pages (from-to) | 183-191 |
| Number of pages | 9 |
| Journal | Progress in Biomedical Optics and Imaging - Proceedings of SPIE |
| Volume | 5691 |
| DOIs | |
| Publication status | Published - 2005 |
| Event | Optical Fibers and Sensors for Medical Applications V - San Jose, CA, United States Duration: 2005 Jan 22 → 2005 Jan 25 |
Keywords
- Er:YAG laser
- Q-switching
- Ureter
- Urology application
- Waveguide