| 摘要 |
Known variable flow pumps (VF pumps) are characterised by significant inaccuracies in the delivery quantities. In addition, they cause cosmetic problems in the carrier after implantation as a result of their external configuration. Provided is an implantable VF pump, which resolves said disadvantages. To achieve this, the battery-driven delivery device is configured according to piezoelectric principles and the external surface of the upper pump housing shell is provided with expansion joints.
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