发明名称 |
Noncontact laser microsurgical apparatus |
摘要 |
A noncontact laser microsurgical apparatus and method for marking a cornea of a patient's or donor's eye in transplanting surgery or keratoplasty, and in incising or excising the corneal tissue in keratotomy, and for tissue welding and for thermokeratoplasty. The noncontact laser microsurgical apparatus (10) comprises a laser source (11) and a projection optical system for converting laser beams emitted from the laser source into coaxially distributed beam spots (61) on the cornea (31). The apparatus further includes a multiple-facet prismatic axicon lens system (18) movably mounted for varying the distribution of the beam spots (61) on the cornea. In a further embodiment of the method of the present invention, an adjustable mask pattern (25-28) is inserted in the optical path of the laser source to selectively block certain portions of the laser beams to thereby impinge only selected areas of the cornea. |
申请公布号 |
EP0602756(B1) |
申请公布日期 |
1999.09.01 |
申请号 |
EP19930203579 |
申请日期 |
1990.06.06 |
申请人 |
UNIVERSITY OF MIAMI |
发明人 |
PAREL, JEAN-MARIE;YOKOKURA, TAKASHI;KOBAYASHI, KATSUHIKO |
分类号 |
A61F9/00;A61B19/00;A61F9/007;A61F9/008;A61F9/01 |
主分类号 |
A61F9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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