| 摘要 |
<p>The pipe (1) made of composite material with controllable phase adapter is made as a three-layer structure consisting of main layer has temperature range of high elasticity 35 C° - 55 C°; second (reinforcing and electric power transducing) layer and adhesion layer. The pipe is used for non-traumatic making of artificial channels in the natural cavities of live organisms by a pre-set track targetted to reach object difficult for access for investigation and therapy via directed and sequential turning of individual sections of the pipe from inside to outside when penetrating and from outside to inside when pulled out. The first (main) layer (2) consists of polymer composition based on vinyl resin, modifying high molecular organic compounds, stabilisers, sliding substances and polar plasticiser. Within the temperature range of condition of high elasticity the pipe can turn to itself keeping in memory its previous forms and sizes. The second (reinforcing) layer consist of spirally located on the first layer metal strings (3) and set cross to them textile fibres (4) so that they form reinforcing net and at the place of intersection they form contact points (6). The third (adhesion) layer (5) secures fixing of the second reinforcing layer to the internal one as well as its isolating from the outside environment except for the contact points and can be based on polyurethanes, vinyl plastisols or raw rubber latexes.</p> |
