| 摘要 |
<p>The breast pump (1) for controllable low-cycle operation comprises a motor drive (19) and a hollow space (10) including a displaceable face (12) connected with the drive and being displaceable in an axial direction (A) of hollow space (10) for changing the volume of hollow space (10); a substantially gas-impermeable sleeve membrane (16) serves to sealingly connect the displaceable face (12) and wall (11) of hollow space (10), which sleeve membrane is sealingly connected at one end (161) to wall (11) of hollow space (10), and at the other end (162) sealingly connected to the displaceable face so as to define, together with displaceable face (12), the volume of hollow space (10).</p> |
