US 12,279,933 B2
Multiple dressing negative pressure wound therapy system
Victoria Beadle, Hull (GB); Sarah Jenny Collinson, Hull (GB); Mark Ellerington, Hull (GB); Yeswanth Gadde, Pocklington (GB); Edward Yerbury Hartwell, Hull (GB); William Kelbie, Inverness (GB); Natasha Rose Middleton, Hull (GB); Samuel John Mortimer, Kingston upon Hull (GB); Stephanie Jane Noble, Hull (GB); Gareth Walker, Hull (GB); Fraser George Weedon, Hull (GB); and Jessica Winks, North Ferriby (GB)
Assigned to T.J.Smith and Nephew, Limited, Hull (GB)
Filed by T.J.Smith and Nephew, Limited, Hull (GB)
Filed on Nov. 1, 2023, as Appl. No. 18/386,190.
Application 17/498,501 is a division of application No. 16/489,323, granted, now 11,141,521, issued on Oct. 12, 2021, previously published as PCT/EP2018/054812, filed on Feb. 27, 2018.
Application 18/386,190 is a continuation of application No. 17/498,501, filed on Oct. 11, 2021, granted, now 11,833,014.
Claims priority of provisional application 62/464,988, filed on Feb. 28, 2017.
Claims priority of provisional application 62/465,011, filed on Feb. 28, 2017.
Claims priority of provisional application 62/464,992, filed on Feb. 28, 2017.
Prior Publication US 2024/0058176 A1, Feb. 22, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 13/05 (2024.01); A61M 1/00 (2006.01)
CPC A61F 13/05 (2024.01) [A61M 1/734 (2021.05); A61M 1/743 (2021.05); A61M 1/915 (2021.05); A61M 1/96 (2021.05); A61M 1/985 (2021.05); A61M 1/913 (2021.05); A61M 1/962 (2021.05); A61M 1/982 (2021.05); A61M 2205/15 (2013.01); A61M 2205/18 (2013.01); A61M 2205/3334 (2013.01); A61M 2205/3344 (2013.01); A61M 2205/3569 (2013.01); A61M 2205/50 (2013.01); A61M 2205/581 (2013.01); A61M 2205/587 (2013.01); A61M 2205/6054 (2013.01); A61M 2205/6063 (2013.01); A61M 2205/6081 (2013.01); A61M 2205/7518 (2013.01); A61M 2205/7536 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A negative pressure wound therapy system comprising:
a negative pressure source;
a plurality of fluid flow paths configured to connect the negative pressure source to a plurality of wounds covered by a plurality of wound dressings, the plurality of fluid flow paths comprising at least a first fluid flow path including a first valve and a second fluid flow path including a second valve; and
a controller configured to operate the negative pressure source, the controller being further configured to:
determine that a first flow rate value indicative of a combined flow rate in the plurality of fluid flow paths does not satisfy a first flow threshold; and
in response to determining that the first flow rate value does not satisfy the first flow threshold:
determine a second flow rate value obtained when at least one of the first valve or the second valve is closed; and
based at least in part on the second flow rate value, identify at least one fluid flow path of the plurality of fluid flow paths that is associated with a blockage condition.