title: A laser-endoscope with direct beam coupling.
abstract: An optical element for direct laser-beam coupling into the observation optic of a rigid endoscope was developed. Using this coupling element every suitable endoscope can be modified into a laser endoscope which can be used for laser surgery e.g. in ENT and urology. The requirements for the endoscope and the optical coupling element are discussed.
mesh_terms: D019723:Endoscopes; D005336:Fiber Optic Technology / Q000295:instrumentation; D006801:Humans; D007834:Lasers; D013525:Surgical Instruments