機能的レーザー照射器の開発(1) : 照射方向可変式ならびにビーム発散角度可変式レーザー照射システムに関する基礎的検討

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Conventional laser irradiating handpieces have various problems in the clinical applications, especially when dealing with narrow field of operation such as body cavities, because of the restriction on their functions. One of the greatest problems is that the coverage of the exposure to the laser beam is quite limited to a restricted part in the subject, since the irradiating direction of the laser beam from the laser handpieces are useally fixed and hardly altered. Another major problem is that it is difficult to control either the spot size of the laser exposure or the power density on the target, since almost the laser handpieces use a focusing lens of a single focal length and their divergence angle of the out focused beam are fixed. One of the authors has devised two kind of new laser irradiator systems with unique functions. One laser irradiator system has the function that the direction of the irradiating laser beam axis is variable by altering the reflection angle to the input laser beam in the laser handpiece with a rotary reflector at the distal end of the handpiece. Another laser handpiece system has the function that the divergence angle of the out focused beam is variable by zooming the focal length of the zoom lens of the focusing lens in the laser handpiece. This paper reports on the methods of those new leser handpiece systems and the results of the fundamental experiments for these techniques.
日本医療機器学会の論文
1990-02-01

機能的レーザー照射器の開発(1) : 照射方向可変式ならびにビーム発散角度可変式レーザー照射システムに関する基礎的検討

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