Abstract: The present invention relates to a valve device designed to be implanted in a dysfunctional larynx or in a prosthetic larynx. The valve device has a distal portion forming an annular support structure and a central portion forming an obturator. The obturator includes i) a peripheral part forming a first valve integral with the annular support structure in a first hinge region, and ii) a central part forming a second valve integral with the first valve in a second hinge region.

Abstract: The present invention relates to a valve device designed to be implanted in a dysfunctional larynx or in a prosthetic larynx, said device comprising a distal portion forming an annular support structure and a central portion forming an obturator, characterized in that said obturator comprises i) a peripheral part forming a first valve integral with the annular support structure in a first hinge region, and ii) a central part forming a second valve integral with the first valve in a second hinge region.

Abstract: In a cross-coil moving-magnet measuring instrument having an approximately cylindrical core developed as winding form, a first coil and a second coil are wound crosswise one over the other. The second coil is necessarily arranged over the first coil in the region of the ends of the winding form and thus has a greater height of turn than the latter. Within the core there is furthermore mounted a moving magnet whose pointer shaft is brought out from an extension of the core. In order to reduce the errors in linearity of this measuring instrument and to permit a display over several quadrants, spacing elements are arranged on the core, they serving to guide turns of the coil, spaced from the extension of an core, around the latter in planes which are at right angles to each other.

Abstract: In a crossed-coil rotating-magnet measuring instrument having an approximately cylindrical core developed as winding form, a first and second coil are wound crossed one above the other. The second coil is necessarily arranged over the first coil in the regin of the ends of the winding form and thus has a greater height of winding than the latter. Within the core there is also provided a rotating magnet whose pointer shaft is extended out of an extension of the core. In order to reduce the linearity error of this measuring instrument and to permit a reading over several quadrants, spacer means are provided on the core for guiding turns of the coil spaced from the extension of the core around the latter in a rectangular plane in each case.