TY - GEN
T1 - Piezoelectric 2D microscanner for precise laser treatment in the human body
AU - Akahori, H.
AU - Haga, Y.
AU - Matsunaga, T.
AU - Totsu, K.
AU - Iseki, H.
AU - Esashi, M.
AU - Wada, H.
PY - 2005/12/1
Y1 - 2005/12/1
N2 - Laser irradiation in the human body using an optical fiber is an effective method of minimally Invasive laser treatment For realizing precise laser treatment in the human body, a two-dimensional (2D) laser scanning micro tool has been developed. A laser is transmitted through an optical fiber and a micro rod lens. The laser is reflected and scanned by a 2D microscanner and focused on an objective area. The fabricated 2D microscanner has three piezoelectric unimorph cantilevers that have a ball joint at each tip and a mirror. The mirror is supported by a pivot from underside and is inclined by pushing down by three cantilevers on the top of the mirror. The maximum inclined angle of the mirror is 30 degrees. Using potasium-titanyl-phosphate (KTP) laser, a function of the laser scanning is confirmed. For insertion the 2D laser scanning micro tool into a working channel of a conventional endoscope, these components are assembled and packaged into a tube. In the future, this tool can be used not only for laser treatment hut also for in vivo microscopic inspection. By combining the 2D microscanner and the microscopic inspection techniques, for example micro confocal laser scanning microscope or Endoscopic Optical Coherence Tomography (EOCT), the tool might be more effective for precise laser treatment
AB - Laser irradiation in the human body using an optical fiber is an effective method of minimally Invasive laser treatment For realizing precise laser treatment in the human body, a two-dimensional (2D) laser scanning micro tool has been developed. A laser is transmitted through an optical fiber and a micro rod lens. The laser is reflected and scanned by a 2D microscanner and focused on an objective area. The fabricated 2D microscanner has three piezoelectric unimorph cantilevers that have a ball joint at each tip and a mirror. The mirror is supported by a pivot from underside and is inclined by pushing down by three cantilevers on the top of the mirror. The maximum inclined angle of the mirror is 30 degrees. Using potasium-titanyl-phosphate (KTP) laser, a function of the laser scanning is confirmed. For insertion the 2D laser scanning micro tool into a working channel of a conventional endoscope, these components are assembled and packaged into a tube. In the future, this tool can be used not only for laser treatment hut also for in vivo microscopic inspection. By combining the 2D microscanner and the microscopic inspection techniques, for example micro confocal laser scanning microscope or Endoscopic Optical Coherence Tomography (EOCT), the tool might be more effective for precise laser treatment
KW - 2-dimentional
KW - Endoscopy
KW - Laser scanner
KW - Laser treatment
KW - Piezoelectric
UR - http://www.scopus.com/inward/record.url?scp=33845296976&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33845296976&partnerID=8YFLogxK
U2 - 10.1109/MMB.2005.1548415
DO - 10.1109/MMB.2005.1548415
M3 - Conference contribution
AN - SCOPUS:33845296976
SN - 0780387112
SN - 9780780387119
T3 - 2005 3rd IEEE/EMBS Special Topic Conference on Microtechnology in Medicine and Biology
SP - 166
EP - 169
BT - 2005 3rd IEEE/EMBS Special Topic Conference on Microtechnology in Medicine and Biology
T2 - 2005 3rd IEEE/EMBS Special Topic Conference on Microtechnology in Medicine and Biology
Y2 - 12 May 2005 through 15 May 2005
ER -