US 12,458,277 B2
Low-profile fluid conductors with treatment indicators
Christopher Brian Locke, Bournemouth (GB); and Thomas Alan Edwards, Hampshire (GB)
Assigned to Solventum Intellectual Properties Company, Maplewood, MN (US)
Appl. No. 17/281,668
Filed by Solventum Intellectual Properties Company, Maplewood, MN (US)
PCT Filed Sep. 27, 2019, PCT No. PCT/US2019/053360
§ 371(c)(1), (2) Date Mar. 31, 2021,
PCT Pub. No. WO2020/072287, PCT Pub. Date Apr. 9, 2020.
Claims priority of provisional application 62/740,816, filed on Oct. 3, 2018.
Prior Publication US 2022/0001096 A1, Jan. 6, 2022
Int. Cl. A61B 5/00 (2006.01); A61L 15/42 (2006.01); A61M 1/00 (2006.01)
CPC A61B 5/445 (2013.01) [A61L 15/425 (2013.01); A61M 1/732 (2021.05); A61M 1/915 (2021.05); A61M 1/92 (2021.05); A61M 2205/3324 (2013.01); A61M 2205/3334 (2013.01); A61M 2205/3368 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A fluid conductor, comprising:
a first barrier comprising:
a first layer formed from a film that is fluid impermeable;
a spacer layer formed from a film that is fluid impermeable;
a plurality of standoffs formed by the spacer layer, the plurality of standoffs comprising cylindrical projection extending from a first surface of the spacer layer toward the first layer, each cylindrical projection being filled with a gas; and
a second layer formed from a film that is fluid impermeable;
the second layer sealed to the first layer to define a fluid path between the first layer and the second layer;
a surface of the second layer sealed to a second surface of the spacer layer to close the standoffs;
an internal pressure of the standoffs being greater than atmospheric pressure;
the fluid path having a first end, a second end, and a longitudinal axis;
indicator ports distributed linearly along the first barrier parallel to and in fluid communication with the fluid path; and
a second barrier coupled to the first barrier, the second barrier formed from a second fluid-impermeable material;
a plurality of pressure indicators defined by the second fluid-impermeable material, aligned with the indicator ports, and configured to elastically deform in response to a reduction in pressure through the indicator ports.