US 12,220,301 B2
Wound dressings and systems with therapeutic gas and negative pressure sources for incision management and related methods
Justin Alexander Long, San Antonio, TX (US); Christopher Brian Locke, Bournemouth (GB); and Kristine M. Kieswfetter, San Antonio, TX (US)
Assigned to Solventum Intellectual Properties Company, Maplewood, MN (US)
Appl. No. 16/960,940
Filed by Solventum Intellectual Properties Company, Maplewood, MN (US)
PCT Filed Jan. 4, 2019, PCT No. PCT/US2019/012250
§ 371(c)(1), (2) Date Jul. 9, 2020,
PCT Pub. No. WO2019/139823, PCT Pub. Date Jul. 18, 2019.
Claims priority of provisional application 62/615,718, filed on Jan. 10, 2018.
Prior Publication US 2021/0001021 A1, Jan. 7, 2021
Int. Cl. A61M 1/00 (2006.01); A61F 13/05 (2024.01)
CPC A61F 13/05 (2024.01) [A61M 1/73 (2021.05); A61M 1/74 (2021.05); A61M 1/90 (2021.05); A61M 1/94 (2021.05); A61M 1/962 (2021.05); A61M 1/964 (2021.05); A61M 1/85 (2021.05); A61M 2202/0208 (2013.01); A61M 2205/3324 (2013.01); A61M 2205/7536 (2013.01); A61M 2205/8206 (2013.01); A61M 2205/8243 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A dressing configured to be coupled to tissue to facilitate delivery of oxygen to the tissue, the dressing comprising:
a patient-interface layer configured to be in contact with the tissue, the patient-interface layer defining a plurality of openings configured to permit communication of oxygen and exudate through the patient-interface layer;
a first manifold configured to permit communication of oxygen to the tissue, the first manifold defining:
a plurality of gas passageways; and
a plurality of openings, one or more of which comprises a length and a width that is at least 50 percent less than the length;
a second manifold configured to permit communication of oxygen to the tissue, the second manifolding defining:
a plurality of gas passageways; and
a plurality of openings, one or more of which comprises a length and a width that is at least 50 percent less than the length;
a sorbent material configured to be disposed below the first manifold and above the second manifold and to capture exudate; and
a gas-occlusive layer configured to be disposed over the first manifold and the second manifold and coupled to the tissue such that an interior volume containing the first manifold and the second manifold is defined between the gas-occlusive layer and the tissue and the gas-occlusive layer limits escape of oxygen from the interior volume.