| 摘要 |
<p>The valve balloon (1) has a flexible slit membrane (3) provided as a valve mechanism for filling and emptying the balloon, where the balloon is pushed back into its starting position by the membrane in cooperation with a mouthpiece (5) during an automatic closing procedure. The membrane is fastened by a locking ring (8) in a valve housing (2). The balloon is fastened to the locking ring by a flexible ring (9) and is engaged within the valve housing.</p> |
