US 12,414,878 B2
Wound dressing and method of use
Gordon Campbell Adie, Cottingham (GB); Sarah Jenny Collinson, Hull (GB); Christopher John Fryer, York (GB); Edward Yerbury Hartwell, Hull (GB); Derek Nicolini, Hull (GB); and Yannick Louis Peron, East Yorkshire (GB)
Assigned to Smith & Nephew PLC, Watford (GB)
Filed by Smith & Nephew PLC, Watford (GB)
Filed on Dec. 30, 2021, as Appl. No. 17/565,840.
Application 17/565,840 is a continuation of application No. 17/372,252, filed on Jul. 9, 2021.
Application 17/372,252 is a continuation of application No. 16/118,339, filed on Aug. 30, 2018, granted, now 11,058,587, issued on Jul. 13, 2021.
Application 16/118,339 is a continuation of application No. 15/633,670, filed on Jun. 26, 2017, granted, now 10,159,604, issued on Dec. 25, 2018.
Application 15/633,670 is a continuation of application No. 14/715,399, filed on May 18, 2015, granted, now 9,808,561, issued on Nov. 7, 2017.
Application 14/715,399 is a continuation of application No. 13/092,042, filed on Apr. 21, 2011, granted, now 9,061,095, issued on Jun. 23, 2015.
Claims priority of application No. 1006983 (GB), filed on Apr. 27, 2010; application No. 1006985 (GB), filed on Apr. 27, 2010; application No. 1006986 (GB), filed on Apr. 27, 2010; application No. 1006988 (GB), filed on Apr. 27, 2010; and application No. 1008347 (GB), filed on May 19, 2010.
Prior Publication US 2022/0117797 A1, Apr. 21, 2022
Int. Cl. A61F 13/05 (2024.01); A61F 13/00 (2024.01); A61F 13/01 (2024.01); A61F 13/0203 (2024.01); A61F 13/0206 (2024.01); A61M 1/00 (2006.01)
CPC A61F 13/05 (2024.01) [A61F 13/0206 (2013.01); A61F 13/0209 (2013.01); A61F 13/022 (2013.01); A61M 1/913 (2021.05); A61M 1/915 (2021.05); A61M 1/985 (2021.05); A61F 2013/00174 (2013.01); A61F 2013/00238 (2013.01); A61F 2013/00536 (2013.01); A61F 2013/0054 (2013.01); A61F 13/01012 (2024.01); A61M 1/912 (2021.05); A61M 1/916 (2021.05); A61M 1/918 (2021.05); A61M 1/962 (2021.05); A61M 2202/0014 (2013.01); A61M 2205/7536 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A transmission layer for use in a wound dressing, the transmission layer comprising:
a knitted or woven spacer fabric comprising a three dimensional structure, the knitted or woven spacer fabric comprising a hydrophilic agent configured such that liquid enters the knitted or woven spacer fabric as soon as liquid contacts the knitted or woven spacer fabric,
wherein the three dimensional structure comprises a top spacer fabric layer and a bottom spacer fabric layer separated from the top spacer fabric layer by a plurality of perpendicular spacer elements, and
wherein the filament count in the top spacer fabric layer is greater than the filament count in the bottom spacer fabric layer.