Negative pressure wound therapy apparatus
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United States of America Patent
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Jan 17, 2017
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N/A
app pub date -
May 15, 2013
filing date -
May 15, 2012
priority date (Note) -
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Abstract
Some embodiments disclosed herein are directed to a pump assembly comprising a voice coil, a magnet and a diaphragm, wherein the voice coil is configured to move the diaphragm to pump a fluid through the pump assembly in response to a drive signal applied to the voice coil. Some embodiments disclosed herein are directed to an apparatus for applying negative pressure to a wound comprising a source of negative pressure configured to be coupled to a dressing, the source of negative comprising a voice coil actuator and a diaphragm, and a controller configured to produce a drive signal for the voice coil actuator.
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