Infusion pump
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United States of America Patent
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-
Oct 13, 2009
Grant Date -
Mar 24, 2005
app pub date -
Nov 6, 2002
filing date -
Nov 6, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Known variable flow pumps (VF pumps) are characterized 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. The invention provides an implantable VF pump, which resolves the 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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