Abstract: The invention applies to the field of medicine, particularly to bone surgery. The invention relates to a monolateral orthopedic external fixation device for immobilizing a fractured bone having a rigid support, at least two pins screwed into the bone and joined to the rigid support by a connecting mechanism comprising a pin-holding device composed of two identical parts forming a clamp whose two opposing faces have depressions. These depressions are able to receive and hold pins with diameters from 3 to 6 mm.

Abstract: The invention relates to a self-contained device for generating high-pressure breathing oxygen, of the type comprising an oxygen-generating chemical candle (3), a gastight confinement chamber composed of a body (1) and of a cover (2), in which chamber the candle is housed, means of igniting the candle, means of percussing the igniter and means of filtering the oxygen generated, characterized in that the igniting means consist of a compressed mixture of titanium and boron and in that the filtering means consist of a mixture of lime or soda lime and of molecular sieve and are distributed, on the one hand, packed in around the candle and, on the other hand, in a cartridge having a generated-oxygen outlet cap.Application to the generation of oxygen in the medical or paramedical field, the aeronautics field and the military field.