Granted Patent
B2
US 12,239,747 · App. 18/386,806 · Granted Mar 4, 2025
Wound dressing layer for improved fluid removal
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Abstract
Described herein are embodiments of a wound dressing layer. The wound dressing layer may include an open-cell foam. The foam may have a 50% compression force deflection of not more than about 4.8 kPa. The foam may also have a density of at least 24 kg/m 3 . The foam may exhibit a density increase of a factor of at least 12 at about −75 mmHg.
Claims (22)
1. A dressing for treating a tissue site, the dressing comprising a reticulated foam having a 50% compression force deflection of not more than about 4.8 kPa, a density of at least 24 kg/m3, and exhibiting a density increase of a factor of at least 12 at about −75 mmHg.
2. The dressing of claim 1 , wherein the 50% compression force deflection is not more than about 4.5 kPa.
3. The dressing of claim 1 , wherein 50% compression force deflection is not more than about 4.0 kPa.
4. The dressing of claim 1 , wherein the 50% compression force deflection is not more than about 3.5 kPa.
5. The dressing of claim 1 , wherein the 50% compression force deflection is not more than about 3.0 kPa.
6. The dressing of claim 1 , wherein the density is at least 28 kg/m3.
7. The dressing of claim 1 , wherein the density is at least 32 kg/m3.
8. The dressing of claim 1 , wherein the density is at least 36 kg/m3.
9. The dressing of claim 1 , wherein the density is at least 40 kg/m3.
10. The dressing of claim 1 , wherein the density increase is a factor of at least 5 at about −25 mmHg.
11. The dressing of claim 1 , wherein the density increase is a factor of at least 9 at about −50 mmHg.
12. The dressing of claim 1 , wherein the density increase is a factor of at least 14 at about −100 mmHg.
13. The dressing of claim 1 , wherein the density increase of a factor is at least 16 at about −125 mmHg.
14. The dressing of claim 1 , wherein the reticulated foam is hydrophobic.
15. The dressing of claim 1 , wherein the reticulated foam is formed from polyurethane.
16. The dressing of claim 1 , wherein the reticulated foam is hydrophilic.
17. The dressing of claim 1 , wherein the reticulated foam is lyophilized.
18. A kit for treating a tissue site, the kit comprising:
a reticulated foam having a 50% compression force deflection of not more than about 4.8 kPa, a density of at least 24 kg/m3, and exhibiting a density increase of a factor of at least 12 at about −75 mmHg; and
a polymer drape.
19. The kit of claim 18 , wherein the polymer drape has a moisture-vapor transmission rate of at least 300 grams/meter 2 per twenty-four hours.
20. The kit of claim 18 , further comprising a negative-pressure source.
Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Nov 11, 2024
From: LOCKE, CHRISTOPHER BRIAN; ROBINSON, TIMOTHY MARK
To: KCI LICENSING, INC.
Reel/Frame 069197/0734 →
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Feb 1, 2024
From: 3M INNOVATIVE PROPERTIES COMPANY
To: SOLVENTUM INTELLECTUAL PROPERTIES COMPANY
Reel/Frame 066432/0206 →
Continuity (5)
Continuation
16473169
Provisional Application
62444127
· Jan 9, 2017
Related Publication
20240226367A9
· Jul 11, 2024
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