Abstract: A spacer for putting into place on a tubular element includes firstly a sleeve of high-compressibility cellular material, the sleeve presenting a wide slot extending over its entire length and defining a central passage that is essentially cylindrical- and being of diameter greater than the nominal diameter of the tubular element, and secondly a sheath of heat-shrink plastics material surrounding the split sleeve at least as far as the end edges thereof. The sheath is partially shrunk on the split sleeve firstly so as to hold the split sleeve in the open state for putting the spacer into place on the tubular element, and secondly so as to be able subsequently to be heat-shrunk to clamp the split sleeve and fix the spacer in position.

Abstract: The invention relates to a sleeve of braided sheath having at least one expanded end whose diameter is greater than the nominal diameter of the sheath; the expanded end includes a certain quantity of adhesive between its component filaments and it is surrounded, at least up to its free edge, by a ring of heat-shrink plastics material. The ring is shrunk in part only so as to be capable of being heat shrunk again once the sleeve has been put into place, thereby clamping the expanded end and fixing the position of said sleeve.