US 12,447,258 B2
Negative pressure wound therapy (NPWT) dressing
Malin Svensson, Gothenburg (SE); Viktoria Skeppstedt, Västra Frölunda (SE); Malin Holmén, Gothenburg (SE); and Elinor Bolyos, Landvetter (SE)
Assigned to Mölnlycke Health Care AB, Mölndal (SE)
Appl. No. 17/999,229
Filed by Mölnlycke Health Care AB, Gothenburg (SE)
PCT Filed May 24, 2021, PCT No. PCT/EP2021/063748
§ 371(c)(1), (2) Date Nov. 18, 2022,
PCT Pub. No. WO2021/239653, PCT Pub. Date Dec. 2, 2021.
Claims priority of application No. 20176277 (EP), filed on May 25, 2020.
Prior Publication US 2023/0330319 A1, Oct. 19, 2023
Int. Cl. A61F 13/00 (2024.01); A61F 13/0206 (2024.01); A61F 13/05 (2024.01); A61M 1/00 (2006.01); A61F 13/0203 (2024.01)
CPC A61M 1/915 (2021.05) [A61F 13/0209 (2013.01); A61F 13/05 (2024.01); A61M 1/985 (2021.05); A61F 13/0223 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A negative pressure wound therapy (NPWT) system comprising:
a dressing comprising:
a backing layer;
an adhesive skin contact layer; and
an absorbent structure arranged between said backing layer and said adhesive skin contact layer;
said adhesive skin contact layer being configured to detachably adhere the dressing to a dermal surface,
an NPWT device that is configured to be carried by the user during use, wherein the NPWT device comprises:
a negative pressure source; and
a remote fluid collection means fluidly connected to said negative pressure source and to said dressing;
wherein said backing layer comprises a tubing connecting the dressing to the negative pressure source and to the remote fluid collection means, wherein said absorbent structure comprises an amount of superabsorbent particles of from 10 to 20 mg/cm2, and
wherein the NPWT system is configured to distribute fluid from a wound so that 35% to 65% of the fluid remains within the dressing and a remainder of the fluid is removed from the dressing.
 
16. A kit comprising:
a negative pressure wound therapy (NPWT) dressing comprising:
a backing layer;
an adhesive skin contact layer; and
an absorbent structure arranged between said backing layer and said adhesive skin contact layer;
said adhesive skin contact layer being configured to detachably adhere the dressing to a dermal surface,
an NPWT device that is configured to be carried by the user during use, wherein the NPWT device comprises:
a negative pressure source; and
a remote fluid collection means configured to be fluidly connected to said negative pressure source and to said dressing;
wherein said backing layer comprises a tubing configured to connect the dressing to the negative pressure source and to the remote fluid collection means, wherein said absorbent structure comprises an amount of superabsorbent particles of from 10 to 20 mg/cm2, and
wherein the NPWT dressing and the NPWT device are configured to cooperate to distribute fluid from a wound so that 35% to 65% of the fluid remains within the dressing and a remainder of the fluid is removed from the dressing.