| 摘要 |
A cavity examination device has an optical receiving element, such as a lens or a camera, and enables insertion into the cavity, in which the reception element does not touch the cavity wall. The cavity examination device has an optical receiving element which receives light emitted or reflected by a wall of a cavity and a screen made of a flexible material. The screen has a first opening and a second opening. The cross section of the second opening is larger here than the cross section of the first opening, and the second opening is selected with regard to the shape and dimension such that, predominantly, it resiliently rests against the wall of the cavity. The screen is attached by the first opening to a body of the cavity examination device on a side of the cavity examination device, which is inserted first into the cavity. During insertion of the cavity examination device into the cavity, the screen is folded in the direction of the cavity examination device, and as the cavity examination device is moved out of the cavity, it folds over so that the screen is folded away from the cavity examination device as the cavity examination device is removed from the cavity. |
