Abstract: An endoscope assembly for stereoscopic observation of cavities has a head support, an observation system controllably mounted on the support to be aligned with an eye axis of an examining person, and an endoscope with an eyepiece funnel mounted on the head support to be coaxial with and synchronously displaceable with the observation system.

Abstract: A cutting apparatus is provided with both a rotating inner blade and a stationary outer blade at its distal end and is connected to a drive unit disposed in the proximal region. The outer blade is spaced from the inner blade to form an irrigation passage through which an irrigation liquid is passed. A flushing duct is provided for fluid communication to the distal end. Additionally, a suction passage is provided to exhaust tissue particles.

Abstract: A rectoscope for examination of the rectum includes a wide-lumen tube, a light conductor connection coupling light from an illumination device to the wide-lumen tube, and a viewing optic disposed in the proximal region of the wide-lumen tube and focused on the center region of the distal opening. Substantially the entire internal side of the wide-lumen tube includes a semi-reflecting surface such that the internal side conducts light from the light conductor connection to the distal opening.

Abstract: The description relates to a medical and especially an endoscopic instrument having a manipulator with a guide channel on which are arranged at least one drive and at least one guide wheel or roller the peripheral surface of which can be engaged with the outer contour of an instrument part in such a way that this instrument part can be moved to and from along its longitudinal axis in relation to the manipulator. The instrument of the invention is distinguished in that, to fit different outside diameters of the instrument part to be moved, at least one of the wheels can be moved at least in the direction perpendicular to the guide channel and/or at least one of the wheels has an elastic coating on its outer periphery.