Laser scalpel
Patent 4266549 Issued on May 12, 1981. Estimated Expiration Date: 
April 18, 1999. 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.
April 18, 1999. 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 3843865 3865113 Photocoagulating scalpel system Method of surgery making use of laser emission and an apparatus for accomplishing same Method and system for non-invasive detection of zinc protoporphyrin in erythrocytes Patent #: 4178917 InventorApplicationNo. 06/031209 filed on 04/18/1979US Classes:606/3, With particular wavelength600/431, Detectable material placed in body600/476, Visible light radiation606/11, Beam energy control or monitoring606/17With beam shaping or redirecting (e.g., lens)ExaminersPrimary: Michell, Robert W.Assistant: Rose, Arthur S. International ClassesA61B 18/20 (20060101)B23K 26/14 (20060101) A61B 18/00 (20060101) A61B 19/00 (20060101) A61M 1/00 (20060101) A61B 17/00 (20060101) Foreign Application Priority Data1978-10-12 JPAbstractDisclosed herein is a laser scalpel which uses a krypton beam or a ray of light projected from a mercury lamp having a wave-length in the range of 3,950-4,200A as a guide light converging at the focal point or in the vicinity of the focal point of a laser beam for a surgical operation, for indicating focal point of said laser beam, which is equipped on its manipulator with a radiation detector or detectors enabling the detection of hematoporphyrin or isotopes built up in advance in the site of a tumor at said focus or in the vicinity thereof and to thus detect the tumor site at the time of irradiation of said laser beam for surgical operation and which makes it possible to simultaneously perform both diagnosis and treatment of the tumor.Other References
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