Abstract: A disposable medical device is especially an articulation for the relative positioning of fixation bars or of pins of an external fixator, having at least a clamping means to be introduced into the medical device, the clamping means comprises an element that alters its appearance when being heated over a threshold temperature, thus giving optical or mechanical information that the device should not be used a second time.

Abstract: A disposable medical device is especially an articulation for the relative positioning of fixation bars or of pins of an external fixator, having at least one clamp to be introduced into the medical device, the clamp has an element that alters its appearance when being heated over a threshold temperature, thus giving optical or mechanical information that the device should not be used a second time.

Abstract: A disposable medical device is especially an articulation for the relative positioning of fixation bars or of pins of an external fixator, having at least a clamping means to be introduced into the medical device, the clamping means comprises an element that alters its appearance when being heated over a threshold temperature, thus giving optical or mechanical information that the device should not be used a second time.

Abstract: A ski binding support (2) comprises a securing piece (8) which is fixedly connected to the ski (1) and serves for securing one end of a support plate (7) with the ski binding mounted thereon, and a guiding piece (9) which is also fixedly connected to the ski and wherein the other end of the support plate (7) is guided in a longitudinally freely movable manner. The support plate (7) is formed of a cover plate (17) having two narrowed, offset tongues (21, 22) which extend into the securing piece (8) and into the guiding piece (9), respectively. A base plate (18) disposed below support plate (7) rests upon the upper surface of the ski. The support plate with a ski binding mounted thereon, is easily and quickly detachable and attachable to the ski while conserving the bending capacity thereof in that there is free longitudinal guidance at one end of support plate (17).