US 11,925,432 B2
Systems and methods for mitigating premature light deactivation of light deactivated adhesive drapes
Justin Alexander Long, Wimborne (GB); Timothy Mark Robinson, Blandford Forum (GB); and Christopher Brian Locke, Bournemouth (GB)
Assigned to 3M Innovative Properties Company, Saint Paul, MN (US)
Appl. No. 16/644,689
Filed by KCI LICENSING, INC., San Antonio, TX (US)
PCT Filed Sep. 4, 2018, PCT No. PCT/US2018/049388
§ 371(c)(1), (2) Date Jul. 16, 2020,
PCT Pub. No. WO2019/050855, PCT Pub. Date Mar. 14, 2019.
Claims priority of provisional application 62/554,280, filed on Sep. 5, 2017.
Prior Publication US 2020/0281678 A1, Sep. 10, 2020
Int. Cl. A61B 46/00 (2016.01); A61B 46/20 (2016.01)
CPC A61B 46/20 (2016.02) [A61B 46/40 (2016.02); A61B 2046/205 (2016.02)] 20 Claims
OG exemplary drawing
 
1. A light deactivated adhesive drape system configured to be coupled to tissue, the system comprising:
a drape comprising:
a photosensitive adhesive layer having at least one release agent disposed within the adhesive layer, wherein the at least one release agent is configured to weaken a bond of the adhesive layer to the tissue upon exposure to at least one of a plurality of light wavelengths, and
a flexible film layer; and
a photochromic layer configured to darken upon exposure to at least one of a plurality of light wavelengths and change between a plurality of transmittance states,
wherein the plurality of transmittance states includes:
a blocking transmittance state configured to block the at least one of the plurality of light wavelengths from passing through the photochromic layer; and
a non-blocking transmittance state configured to allow at least some visible light wavelengths to pass through the photochromic layer.