Abstract: The invention relates to a wire device (100), in particular a wire device for insertion in a body lumen, comprising a stiffening portion with a pressure tube (2), a stiffening layer (3) and an outer tube (4). The stiffening layer is arranged concentrically about the pressure tube, and the outer tube is arranged concentrically outside of the stiffening layer. The outer tube is radially stiff and the stiffening layer is radially movable. Pressure can be built up inside the pressure tube such that the stiffening layer can be forced against the outer tube from the inside and the stiffening portion can be reversibly stiffened under pressure. The pressure in the pressure tube can in particular be reduced so that the stiffening portion becomes flexible again.

Abstract: The invention relates to a tube device (100), in particular a lock-type device for insertion in a body lumen, that can be reversibly stiffened under the effect of pressure by a concentric arrangement of an inner (1) and outer tube (4), and a stiffening layer (3), the stiffening layer exerting pressure on the outer tube and thus producing high friction.

Abstract: A tube element for a device for introduction into a body passage comprises a first tube element end and a second tube element end, wherein a longitudinal dimension is formed between the first and second tube element end. The tube element has a sheath comprising an outer wall and an inner wall. A cross-sectional element is arranged between the first and second tube element ends. The cross-sectional element contains a plurality of opening arrangements. Each opening arrangement comprises a first opening containing an insert element and a second opening, the internal pressure of which can be changed by a pressure changing means.

Abstract: A tube element for a device for introduction into a body passage comprises a first tube element end and a second tube element end, wherein a longitudinal dimension is formed between the first and second tube element end. The tube element has a sheath comprising an outer wall and an inner wall. A cross-sectional element is arranged between the first and second tube element ends. The cross-sectional element contains a plurality of opening arrangements. Each opening arrangement comprises a first opening containing an insert element and a second opening, the internal pressure of which can be changed by a pressure changing means.

Abstract: A mirror device (1) for observing a person (2) in a mirror. The mirror device comprises a light source (3), a screen (4) for blocking direct light between the person (2) and the light source (3), a reflector (5) for reflecting the light produced by the light source (3), and at least one observation region (6), in which the person (2) can observe himself/herself. The screen (4) is arranged between the person and the light source in such a way that no direct light reaches the person (2). The reflector (5) is arranged substantially in a plane with the observation region (6) and thus forms a wing and/or the observation region is part of the screen (4), such that the reflector (5) can be arranged laterally during observation by the person. The reflector (5) has a diffuser surface (8) which scatters the incident radiation from the light source (3).

Abstract: An arch element (1") for protecting roofs has at least one tubular arch (2) held in the curved state by at least one brace (4). The ends of arch and brace (2, 4) are interconnected by end connectors (3). In order to keep the brace (2) out of the direct connection between both end connectors (3) and to guide it along the arch (2) at a certain distance thereof, a flat connecting part (5) is arranged between and joined to arch and brace (2, 4). By using three arches (2), two braces (4) designed as bracing booms, four fabric or plastic connecting surfaces (5) that join the braces (4) to the arches (2), and three spacers (10) that keep the outer arches (2) apart, an unsupported, dimensionally stable three-dimensional arch element (1") is obtained that may be used directly as a shade or associated to other arch elements to carry roof surfaces. By using arches (2), spacers (10) and end connectors (3) that can be plugged into each other, the arch element (1") may be dismounted.