The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 11, 2020

Filed:

Dec. 21, 2015
Applicant:

Smith & Nephew Plc, Watford, Hertfordshire, GB;

Inventors:

Ben Alan Askem, Brough, GB;

Iacopo Claudio Ferrari, Milan, IT;

Matteo Foini, Milan, IT;

Paolo Forzani, Milan, IT;

Christopher John Fryer, York, GB;

Allan Kenneth Frazer Grugeon Hunt, Beverley, GB;

Christian Riva, Milan, IT;

Assignee:

Smith & Nephew PLC, Watford, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 1/00 (2006.01); F04B 43/04 (2006.01); F04B 45/047 (2006.01); F04B 49/06 (2006.01); B29C 65/16 (2006.01); F04B 51/00 (2006.01); B29C 65/00 (2006.01); B29C 65/78 (2006.01); F04B 49/12 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
A61M 1/0088 (2013.01); A61M 1/0025 (2014.02); A61M 1/0027 (2014.02); A61M 1/0031 (2013.01); A61M 1/0035 (2014.02); A61M 1/0072 (2014.02); A61M 1/0086 (2014.02); B29C 65/1635 (2013.01); B29C 65/1677 (2013.01); B29C 65/7802 (2013.01); B29C 65/7805 (2013.01); B29C 66/54 (2013.01); B29C 66/7392 (2013.01); F04B 43/04 (2013.01); F04B 45/047 (2013.01); F04B 49/065 (2013.01); F04B 49/12 (2013.01); F04B 51/00 (2013.01); A61M 2205/0272 (2013.01); A61M 2205/15 (2013.01); A61M 2205/18 (2013.01); A61M 2205/3331 (2013.01); A61M 2205/42 (2013.01); A61M 2205/50 (2013.01); A61M 2205/505 (2013.01); A61M 2205/52 (2013.01); A61M 2205/581 (2013.01); A61M 2205/583 (2013.01); A61M 2205/584 (2013.01); A61M 2205/587 (2013.01); A61M 2205/70 (2013.01); A61M 2205/7536 (2013.01); A61M 2205/8206 (2013.01); A61M 2207/00 (2013.01); B29C 65/7808 (2013.01); B29C 66/71 (2013.01); B29C 66/8227 (2013.01); B29C 66/8242 (2013.01); B29L 2031/7496 (2013.01); B29L 2031/753 (2013.01);
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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