| 摘要 |
An endoluminal centring catheter 1 comprises an outer layer of silicone 2 covering a core 3 which has spaced perforations 5 each of which connects with a longitudinal duct through which a pressurised fluid may be introduced. The outer layer 2 is bonded to the core 3 except at the areas around the perforations 5. In these areas a thin layer of easily releasable material is interposed which prevents the layer 2 from bonding to the core 3. When a pressurised fluid is introduced into the ducts there is a localised blister-like distension of the outer layer 2 in the zone around the aperture 5. |
