US 12,082,996 B2
Apparatuses and methods for negative pressure wound therapy
Sean Albert, Barrington, NH (US); Ed Armstrong, Palm Harbor, FL (US); Ken Beaudoin, Wakefield, MA (US); Iain Michael Blackburn, Cottingham (GB); Phil Bussone, S. Hamilton, MA (US); Brendan Crawford, Westborough, MA (US); Robert Emmerson, Beverley (GB); Mike Ewaschuk, Vershire, VT (US); Stephen Gianelis, Abington, MA (US); Andrew Goddard, Beverly, MA (US); Joseph Gordon, Mansfield, MA (US); Mark Guarraia, Providence, RI (US); Tim Johnson, Raymond, NH (US); Darwin Keith-Lucas, Arlington, MA (US); Andrew Linton, Woodthorpe (GB); Dan Nelsen, Warwick, RI (US); Michael Salame, Norwich, CT (US); Tim Stern, Belper (GB); and Mark White, Norton (GB)
Assigned to Smith & Nephew, Inc., Memphis, TN (US)
Filed by Smith & Nephew, Inc., Memphis, TN (US)
Filed on Oct. 1, 2019, as Appl. No. 16/590,278.
Application 16/590,278 is a continuation of application No. 16/547,273, filed on Aug. 21, 2019, granted, now 11,058,588.
Application 16/547,273 is a continuation of application No. 15/681,165, filed on Aug. 18, 2017, granted, now 10,406,037, issued on Sep. 10, 2019.
Application 15/681,165 is a continuation of application No. 15/256,349, filed on Sep. 2, 2016, granted, now 9,974,695, issued on May 22, 2018.
Application 15/256,349 is a continuation of application No. 15/198,690, filed on Jun. 30, 2016, granted, now 9,999,547, issued on Jun. 19, 2018.
Application 15/198,690 is a continuation of application No. 15/018,724, filed on Feb. 8, 2016, granted, now 9,642,750, issued on May 9, 2017.
Application 15/018,724 is a continuation of application No. 14/267,636, filed on May 1, 2014, granted, now 9,327,065, issued on May 3, 2016.
Application 14/267,636 is a continuation of application No. 13/381,885, granted, now 8,801,685, issued on Aug. 12, 2014, previously published as PCT/US2010/061938, filed on Dec. 22, 2010.
Claims priority of provisional application 61/369,008, filed on Jul. 29, 2010.
Claims priority of provisional application 61/332,440, filed on May 7, 2010.
Claims priority of provisional application 61/289,358, filed on Dec. 22, 2009.
Prior Publication US 2020/0100945 A1, Apr. 2, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 13/05 (2024.01); A61F 13/02 (2006.01); A61F 13/0203 (2024.01); A61F 13/0206 (2024.01); A61M 1/00 (2006.01); A61F 13/00 (2006.01); A61M 39/20 (2006.01)
CPC A61F 13/05 (2024.01) [A61F 13/02 (2013.01); A61F 13/0206 (2013.01); A61F 13/022 (2013.01); A61M 1/86 (2021.05); A61M 1/90 (2021.05); A61M 1/912 (2021.05); A61M 1/913 (2021.05); A61M 1/915 (2021.05); A61M 1/964 (2021.05); A61F 2013/00174 (2013.01); A61F 2013/00238 (2013.01); A61F 2013/00536 (2013.01); A61F 2013/0057 (2013.01); A61F 2013/0074 (2013.01); A61F 2013/00846 (2013.01); A61M 1/962 (2021.05); A61M 39/20 (2013.01); A61M 2205/7518 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A wound treatment system for treating a wound on a patient,
the wound treatment system comprising:
a wound packing material configured to be positioned at a wound, wherein the wound packing material has a first side and a second, patient-facing side;
a flexible drape configured to be positioned over the first side of the wound packing material and over the wound and sealed to skin surrounding the wound, wherein the flexible drape is water vapor permeable and has a first side and a second, patient-facing side;
a first spacer layer having a first side and a second, patient-facing side, wherein the second, patient-facing side is positionable proximate to the first side of the flexible drape;
an upper layer positioned above the first side of the first spacer layer forming at least partially a first channel space, wherein the first spacer layer is positioned at least partially within the first channel space;
a lower layer having a first side and a second, patient-facing side forming at least partially a second channel space, wherein a second spacer layer is positioned at least partially within the second channel space, wherein the first and second spacer layers are positioned between the upper and lower layers, and the first channel space is formed above the second channel space between the upper and lower layers;
an air leak formed on the upper layer configured to provide an air path between ambient air and the first channel space; and
a pump for producing reduced pressure, wherein the pump is configured to be fluidly coupled to a sealed space beneath the flexible drape when the flexible drape is sealed to skin surrounding the wound for delivering reduced pressure thereto and fluidly coupled to the second channel space for delivering reduced pressure thereto.