Indirect ophthalmoscopic photocoagulation delivery system for retinal surgery
July 24, 2004. 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 1806318 3783874 3910276 Portable light coagulator Retinometer Medical laser instrument for transmitting infrared laser energy to a selected part of the body Laser device Method for the surgical treatment of the eye Anastigmatic high magnification, wide-angle binocular indirect attachment for laser photocoagulator Laser knife device InventorApplicationNo. 06/633903 filed on 07/24/1984US Classes:606/3, With particular wavelength351/217, On rotary disc385/33, Lens600/398, Testing aqueous humor pressure or related condition606/11, Beam energy control or monitoring606/18, Mirror606/4OphthalmicExaminersPrimary: Doll, JohnAssistant: Johnson, Lance Attorney, Agent or FirmInternational ClassesA61F 9/007 (20060101)A61F 9/008 (20060101) A61B 17/00 (20060101) AbstractIn a preferred embodiment, a portable ophthalmoscope having low-power telescope elements and having an internal source of viewed-field illumination, relies on a patient's focusing properties to inspect the fundus of the eye. A laser-beam source is flexibly coupled to the patient end of the ophthalmoscope viewing axis and, after optical expansion and collimation, is folded into coincidence with the ophthalmoscope axis. A dichroic (filter) is the mirror via which the folding takes place, the filter being selected for a very narrowly limited spectral band of great attenuation of radiation at the characteristic wavelength of the involved laser, the latter having been selected for its photocoagulating and/or photoablating action on locally afflicted tissues of the retinal, choroid and/or other internal regions of the eye.Other References
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