Abstract: An appliance for the dynamic correction of rachidial deformities, wherein in the deformed part of the rachis which it is wished to correct is implanted a mechanical assembly of biocompatible material comprising screwed onto each vertebra of the deformed area, in the angle formed by the spinous process and the disk, a retaining clamp having at least one guidance opening from one side to the other parallel to the axis of the rachis; an elastic restoring or return structure having at least one elastic rod with a shape memory of the corresponding part of a normal rachis and introduced into the aforementioned guidance openings of the retaining clamp fixed to each vertebra, immobilized in rotation in each guidance opening and in translation on one of the retaining clamps.

Abstract: A light assembly for mounting to a synoptic display panel is composed of a tile having a transparent surface portion, of a light-conducting transparent body, having at one end thereof adjacent to the tile, a diffusion surface, of a hollow block with baffles dividing the block into chambers in which are disposed light elements, and of a transparent plate mounted between the baffles housing and the transparent body; the transparent plate displays a geometrical pattern of colored areas, each area corresponding in shape to the cross-sectional area of a chamber with which it is in registry so that the light emitted from one of the light elements is colored by the area registered therewith, transmitted through the light-conducting body to the diffusion surface and emerges from the transparent surface portion of the tile.