Piezoelectric 2D microscanner for precise laser treatment in the human body

H. Akahori; Yoichi Haga; Tadao Matsunaga; Kentaro Totsu; H. Iseki; Masayoshi Esashi; H. Wada

doi:10.1109/MMB.2005.1548415

Piezoelectric 2D microscanner for precise laser treatment in the human body

H. Akahori, Yoichi Haga, Tadao Matsunaga, Kentaro Totsu, H. Iseki, Masayoshi Esashi, H. Wada

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

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

Original language	English
Title of host publication	2005 3rd IEEE/EMBS Special Topic Conference on Microtechnology in Medicine and Biology
Pages	166-169
Number of pages	4
Volume	2005
DOIs	https://doi.org/10.1109/MMB.2005.1548415
Publication status	Published - 2005 Dec 1
Event	2005 3rd IEEE/EMBS Special Topic Conference on Microtechnology in Medicine and Biology - Oahu, HI, United States Duration: 2005 May 12 → 2005 May 15

Other

Other	2005 3rd IEEE/EMBS Special Topic Conference on Microtechnology in Medicine and Biology
Country/Territory	United States
City	Oahu, HI
Period	05/5/12 → 05/5/15

Keywords

2-dimentional
Endoscopy
Laser scanner
Laser treatment
Piezoelectric

ASJC Scopus subject areas

Engineering(all)

Access to Document

10.1109/MMB.2005.1548415

Cite this

Akahori, H, Haga, Y, Matsunaga, T, Totsu, K, Iseki, H, Esashi, M & Wada, H 2005, Piezoelectric 2D microscanner for precise laser treatment in the human body. in 2005 3rd IEEE/EMBS Special Topic Conference on Microtechnology in Medicine and Biology. vol. 2005, 1548415, pp. 166-169, 2005 3rd IEEE/EMBS Special Topic Conference on Microtechnology in Medicine and Biology, Oahu, HI, United States, 05/5/12. https://doi.org/10.1109/MMB.2005.1548415

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title = "Piezoelectric 2D microscanner for precise laser treatment in the human body",

abstract = "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",

keywords = "2-dimentional, Endoscopy, Laser scanner, Laser treatment, Piezoelectric",

author = "H. Akahori and Yoichi Haga and Tadao Matsunaga and Kentaro Totsu and H. Iseki and Masayoshi Esashi and H. Wada",

year = "2005",

month = dec,

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doi = "10.1109/MMB.2005.1548415",

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AU - Akahori, H.

AU - Haga, Yoichi

AU - Matsunaga, Tadao

AU - Totsu, Kentaro

AU - Iseki, H.

AU - Esashi, Masayoshi

AU - Wada, H.

PY - 2005/12/1

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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

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ER -

Piezoelectric 2D microscanner for precise laser treatment in the human body

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Keywords

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