| 摘要 |
<p>A combination of a liquid-containing bag 26 e.g. a urine drainage bag, and a tube 28 is made up of a pair of superposed sheets, joined by a weld 24a - 24d whose configuration is chosen to define in a single welding operation the outline of the bag and the tube. Means are provided for precluding face-to-face contact of selected parts of the inner surfaces of said sheet e.g. by providing crinkles and irregularities in one of the sheets by biaxial orientation thereof followed by application of radiant heat. <IMAGE></p> |
