Pressure sampling systems and methods for negative pressure wound therapy
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United States of America Patent
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Aug 11, 2020
Grant Date -
Dec 28, 2017
app pub date -
Dec 21, 2015
filing date -
Dec 22, 2014
priority date (Note) -
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Abstract
Systems and methods for controlling a pump system for use in negative pressure wound therapy are described herein. In some embodiments, a method for controlling a pump system includes applying a drive signal to a pump assembly of the pump system, the drive signal alternating between a positive amplitude and a negative amplitude and the drive signal having an offset, and sampling a pressure within a fluid flow path configured to connect the pump system to a wound dressing configured to be placed over a wound during one or more time intervals. Each of the one or more time intervals can occur when the drive signal is approximately at an amplitude equal to one or more sampling amplitudes.
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