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Combined Nd:YAG and Er:YAG lasers for real-time closed-loop tissue-specific laser osteotomy.
Abbasi, Hamed; Beltrán Bernal, Lina M; Hamidi, Arsham; Droneau, Antoine; Canbaz, Ferda; Guzman, Raphael; Jacques, Steven L; Cattin, Philippe C; Zam, Azhar.
Affiliation
  • Abbasi H; Biomedical Laser and Optics Group (BLOG), Department of Biomedical Engineering, University of Basel, CH-4123 Allschwil, Switzerland.
  • Beltrán Bernal LM; hamed.abbasi@unibas.ch.
  • Hamidi A; Biomedical Laser and Optics Group (BLOG), Department of Biomedical Engineering, University of Basel, CH-4123 Allschwil, Switzerland.
  • Droneau A; Biomedical Laser and Optics Group (BLOG), Department of Biomedical Engineering, University of Basel, CH-4123 Allschwil, Switzerland.
  • Canbaz F; Biomedical Laser and Optics Group (BLOG), Department of Biomedical Engineering, University of Basel, CH-4123 Allschwil, Switzerland.
  • Guzman R; Grenoble INP, Grenoble Alpes University, Phelma, France.
  • Jacques SL; Biomedical Laser and Optics Group (BLOG), Department of Biomedical Engineering, University of Basel, CH-4123 Allschwil, Switzerland.
  • Cattin PC; Department of Neurosurgery, University Hospital Basel, CH-4056 Basel, Switzerland.
  • Zam A; Department of Bioengineering, University of Washington, Seattle, Washington 98195, USA.
Biomed Opt Express ; 11(4): 1790-1807, 2020 Apr 01.
Article in En | MEDLINE | ID: mdl-32341848
ABSTRACT
A novel real-time and non-destructive method for differentiating soft from hard tissue in laser osteotomy has been introduced and tested in a closed-loop fashion. Two laser beams were combined a low energy frequency-doubled nanosecond NdYAG for detecting the type of tissue, and a high energy microsecond ErYAG for ablating bone. The working principle is based on adjusting the energy of the NdYAG laser until it is low enough to create a microplasma in the hard tissue only (different energies are required to create plasma in different tissue types). Analyzing the light emitted from the generated microplasma enables real-time feedback to a shutter that prevents the ErYAG laser from ablating the soft tissue.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Biomed Opt Express Year: 2020 Document type: Article Affiliation country: Switzerland
Fulltext
Add to My VHL
Print
XML
PubMed Links
Search on Google

Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Biomed Opt Express Year: 2020 Document type: Article Affiliation country: Switzerland