Method and apparatus for delivering laser energy for ophthalmic use
Patent 4520816 Issued on June 4, 1985. Estimated Expiration Date: 
January 12, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
January 12, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2235319 3369101 3703176 3710798 3750670 3828788 Laser knife device Patent #: 4408602 InventorsApplicationNo. 06/457433 filed on 01/12/1983US Classes:606/4, Ophthalmic219/121.76, Multiple beams219/121.77, With sing source351/200, EYE EXAMINING OR TESTING INSTRUMENT606/11, Beam energy control or monitoring606/18MirrorExaminersPrimary: Rosenbaum, C. FredAssistant: Kartchner, Gene B. Attorney, Agent or FirmInternational ClassesA61B 3/135 (20060101)A61B 3/00 (20060101) A61B 3/13 (20060101) A61B 3/12 (20060101) A61F 9/007 (20060101) A61F 9/008 (20060101) A61F 9/00 (20060101) AbstractAn ophthalmic laser surgery system includes a slit lamp (14) with an illuminator (16) and a biomicroscope (26). The high power laser (34) delivers a laser beam (36) which is mixed with the output from a lower power laser (38) with a dichroic mirror (54). The output of the dichroic mirror (54) is input to the harmonic generator (60) to generate harmonics thereof. The output of the harmonic generator (60) is optically directed to move along the rotational axis through rotational supports (22) and (30). The laser beam is then directed by mirrors (72) and (80) to a focusing lens (90) and a filter (92) to a dielectric mirror (94). The dielectric mirror (94) mixes the illumination from the slit lamp (14) with the laser beam for delivery to the eye (12). A micromanipulator (102) adjusts the position of the dielectric mirror (94). A control circuit (104) controls the operation of the laser (34). A protection device (110) has filters for disposal within the path of the viewing axis of the biomicroscope to prevent damage to the surgeon's eyes.Other References
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