Tui Laser Ag

Alexander Hohla

Claus Strowitzki

Hans Kodeda

Helmut Frowein

Gunther Leipert

The present invention relates to an apparatus for detecting tumorous tissue comprising at least one excitation light source , which first excitation light source emits a first excitation light of a wavelength of between 300 nm and 314 nm and includes at least one optical fiber for guiding the first excitation light to an object field of the tissue to be examined, and at least one lens for projecting an auto-fluorescence signal and/or a remission signal of the tissue , generated by the first excitation light , to a CCD or ICCD chip of a camera , as well as a data processing system for processing the signals transmitted by the camera , said lens being capable of processing UV light and being designed such that at least two images from different spectral regions of the fluorescent object field are generated and projected to the CCD or ICCD chip, of which at least one image represents the UV range and another, different wavelength range of the auto-fluorescence signal and/or of the remission signal of said object field . The invention is further directed to a method for detecting tumorous tissue.

Method and apparatus for detecting tumorous tissue

An adjustable mounting unit for an optical element of a gas laser is provided. The typical gas laser for which the mounting unit will be used comprises a tube having a first end wall at one end and a second end wall at the other end, an optical axis extending longitudinally through the tube, and a port in the first end wall through which the optical axis passes. The mounting unit includes a rigid support structure having an aperture therein and an optical element mounted within the aperture. In addition, at least three adjustable mounting devices are used to attach the support structure to the laser tube. The mounting points are preferably selected so that they are displaced in an axial direction by substantially the same amount due to dimensional changes in the laser occurring during operation of the laser. When attached to the laser, the rigid support is spaced apart from the laser tube to allow for the adjustment of the angular positioning of the optical element. Furthermore, the aperture and optical element are disposed transverse to the optical axis and are aligned with the optical axis. Adjustment of the adjustable mounting devices changes the angular position of the optical element relative to the optical axis.

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Munich, Germany

Alexander Hohla