Method and apparatus for minimum negative pressure control, particularly for a breastpump with breastshield pressure control system
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United States of America Patent
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Dec 6, 2011
Grant Date -
Apr 16, 2009
app pub date -
Oct 9, 2008
filing date -
Apr 11, 2007
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A breastpump, manual or motorized, that includes a mechanism to regulate pressure change, e.g., vacuum, within a breastshield chamber, including in some cases to a maintained minimum pressure that is less than ambient (atmosphere). The pressure regulator provides control for varying negative pressure between a minimum value and a maximum value (and values in between), or to achieve a specific actually measured negative pressure value within a breastshield.
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Family
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Cited Art Landscape
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