US 11,918,730 B2
Micro-porous conduit
Timothy Mark Robinson, Shillingstone (GB); and Christopher Brian Locke, Bournemouth (GB)
Assigned to 3M Innovative Properties Company, Saint Paul, MN (US)
Filed by KCI Licensing, Inc., San Antonio, TX (US)
Filed on Apr. 14, 2020, as Appl. No. 16/848,533.
Application 16/848,533 is a continuation of application No. 15/709,154, filed on Sep. 19, 2017, granted, now 10,653,562.
Application 15/709,154 is a continuation of application No. 14/173,947, filed on Feb. 6, 2014, granted, now 9,795,515, issued on Oct. 24, 2017.
Claims priority of provisional application 61/782,713, filed on Mar. 14, 2013.
Prior Publication US 2020/0237563 A1, Jul. 30, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 1/00 (2006.01); A61F 13/00 (2006.01); A61M 27/00 (2006.01)
CPC A61M 1/913 (2021.05) [A61F 13/00068 (2013.01); A61M 1/71 (2021.05); A61M 1/85 (2021.05); A61M 1/915 (2021.05); A61M 1/916 (2021.05); A61M 1/92 (2021.05); A61M 27/00 (2013.01); A61M 2205/15 (2013.01); A61M 2205/3344 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A system for treating a tissue site, comprising:
a manifold configured to be positioned proximate the tissue site;
a cover layer configured to cover the manifold and the tissue site to provide a sealed space between the cover layer and the tissue site;
a porous conduit configured to be disposed in the sealed space in fluid communication with the manifold and the sealed space, comprising:
a lumen,
a first porous wall positioned substantially concentric about the lumen; and
a second porous wall positioned substantially concentric about the first porous wall;
a therapy device adapted to be in fluid communication with the porous conduit, the therapy device comprising a reduced-pressure source configured to be in fluid communication with the lumen; and
a conduit interface configured to be fluidly coupled between the porous conduit and the therapy device, the conduit interface comprising:
a reduced-pressure lumen fluidly coupled to the lumen,
a fluid instillation lumen fluidly coupled to the first porous wall, and
a sensing lumen fluidly coupled to the second porous wall.