US 12,128,169 B2
Device and method for wound therapy
Ashok V. Joshi, Salt Lake City, UT (US); John Howard Gordon, Salt Lake City, UT (US); Sai Bhavaraju, West Jordan, UT (US); Troy C. Dayton, Syracuse, UT (US); and Jeremy Heiser, Salt Lake City, UT (US)
Assigned to Smith & Nephew, Inc., Memphis, TN (US)
Filed by Smith & Nephew, Inc., Memphis, TN (US)
Filed on Sep. 29, 2020, as Appl. No. 17/036,351.
Application 12/592,049 is a division of application No. 11/610,458, filed on Dec. 13, 2006, granted, now 7,779,625, issued on Aug. 24, 2010.
Application 17/036,351 is a continuation of application No. 16/542,190, filed on Aug. 15, 2019, granted, now 11,813,394.
Application 16/542,190 is a continuation of application No. 15/713,479, filed on Sep. 22, 2017, granted, now 10,391,212, issued on Aug. 27, 2019.
Application 15/713,479 is a continuation of application No. 15/280,778, filed on Sep. 29, 2016, granted, now 9,795,725, issued on Oct. 24, 2017.
Application 15/280,778 is a continuation of application No. 14/920,680, filed on Oct. 22, 2015, granted, now 9,669,138, issued on Jun. 6, 2017.
Application 14/920,680 is a continuation of application No. 13/912,716, filed on Jun. 7, 2013, granted, now 9,168,330, issued on Oct. 27, 2015.
Application 13/912,716 is a continuation of application No. 12/592,049, filed on Nov. 18, 2009, granted, now 8,460,255, issued on Jun. 11, 2013.
Application 11/610,458 is a continuation in part of application No. 11/432,855, filed on May 11, 2006, granted, now 7,615,036, issued on Nov. 10, 2009.
Prior Publication US 2021/0008255 A1, Jan. 14, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 1/00 (2006.01); A61F 13/02 (2006.01); A61F 13/0203 (2024.01); A61F 13/0206 (2024.01); A61F 13/05 (2024.01); A61L 15/28 (2006.01); A61L 15/42 (2006.01); A61L 15/58 (2006.01); A61L 15/60 (2006.01); A61M 27/00 (2006.01)
CPC A61M 1/73 (2021.05) [A61F 13/0206 (2013.01); A61F 13/0213 (2013.01); A61F 13/0243 (2013.01); A61F 13/05 (2024.01); A61L 15/28 (2013.01); A61L 15/425 (2013.01); A61L 15/58 (2013.01); A61L 15/60 (2013.01); A61M 1/74 (2021.05); A61M 1/743 (2021.05); A61M 1/78 (2021.05); A61M 1/784 (2021.05); A61M 1/90 (2021.05); A61M 1/915 (2021.05); A61M 1/962 (2021.05); A61M 1/882 (2021.05); A61M 1/964 (2021.05); A61M 1/982 (2021.05); A61M 27/00 (2013.01); A61M 2205/13 (2013.01); A61M 2205/15 (2013.01); A61M 2205/7509 (2013.01); A61M 2205/7518 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method of treating a wound, comprising:
positioning a wound therapy device over a wound area and an area of intact skin adjacent to the wound area at least partially enclosing the wound area, the wound therapy device comprising:
a moisture vapor permeable cover layer,
an absorbent layer positioned beneath the cover layer,
a disperser layer positioned beneath or above the absorbent layer,
a silicone wound contact layer beneath the absorbent layer, the wound contact layer adhered to the moisture vapor permeable cover layer, and
a filter positioned beneath an opening in the cover layer and configured to prevent liquid from reaching a source of negative pressure; and
applying negative pressure to the wound therapy device such that negative pressure is transmitted through the absorbent layer, the disperser layer, and the wound contact layer to the wound area and to the intact skin adjacent to the wound area at least partially enclosing the wound area.