An endoscope, an endoscope system, and a filter unit.

An endoscope is disclosed, in particular an insertion aid for an endoscope (3) which can be arranged at the distal end of the endoscope tube (3a) and works as a tubular structure which is turned inside out (23).

An endoscope and a method for fitting a hygiene protector onto an endoscope are also described.

An endoscope system etc. having an over tube (2) and an endoscope (1).

The invention further relates to an endoscope (1), in particular a video endoscope, having a contact-free magnetic coupling (41) according to the invention.

The invention relates to an electrical connection piece for a video endoscope having a hermetically closed video unit in a shaft of the endoscope, to a video endoscope, and to a method for producing an electrical connection in a video endoscope.

Provided are a pressure sensor allowing intestinal perforation by an endoscope to be avoided, an endoscope mounted with said pressure sensor, and an endoscope device provided with said endoscope.

The leakage-testing apparatus for an endoscope of the present invention is small so as to be installed in or separated from an endoscope.

The endoscopic assembly may include an endoscope.

An endoscope has an operating channel.

An end cap for an endoscope.

An endoscope securing and positioning device is provided for adjusting or maintaining the position of an endoscope.

An endoscopic assembly for an endoscope is disclosed.

An optical system for an endoscope includes an objective lens, a relay lens arrangement, and a correction optical system disposed in an optical path on a proximal end side of the objective lens.

Provided are a photodetector device and a photodetection method, with which the heterodyne detection of a desired light to be detected can be performed, in high sensitivity and at a high SN ratio, and, a microscope and an endoscope.