US 12,447,227 B2
Single use, topical, hydrophilic article with a hemostatic foam
David Lang, Vonore, TN (US)
Filed by David Lang, Vonore, TN (US)
Filed on Apr. 12, 2024, as Appl. No. 18/634,841.
Application 18/634,841 is a continuation in part of application No. 17/168,128, filed on Feb. 4, 2021, granted, now 11,975,114.
Prior Publication US 2024/0307583 A1, Sep. 19, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 13/00 (2024.01); A61F 13/0203 (2024.01); A61L 15/42 (2006.01)
CPC A61L 15/425 (2013.01) [A61F 13/0226 (2013.01); A61F 2013/00463 (2013.01); A61L 2400/04 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A hemostatic surface application device having a region of hemostatic foam for contact with a patient's skin where a wound exists or is created, the device comprising:
a release layer,
the release layer in contact with a hemostatic flexible foam layer,
a structural foam layer having a front side and a back side surrounding a hemostatic flexible foam layer, forming a generally central hemostatic surface exposed through the front side of the surrounding structural foam layer, and
a support layer adhered to the back side of the structural foam layer,
wherein the support layer has an opening therein which exposes at least 5% of the back side of the structural foam layer to enable water to irrigate the structural foam layer during removal of the device from contact with a patient's skin.
 
14. A method of reducing excessive blood flow off an exterior surface wound of a patient comprising removing a release layer of a hemostatic surface application device comprising a region of hemostatic foam for contact with a patient's skin where a wound exists or is created, the device comprising: a release layer, the release layer in contact with a hemostatic flexible foam layer, and the structural foam layer having a front side and a back side surrounding a hemostatic flexible foam layer, forming a hemostatic surface exposed through the front side of the surrounding structural foam layer, and a support layer adhered to the back side of the structural foam layer, wherein the support layer has an opening therein which exposes at least 5% of the back side of the structural foam layer to enable water to irrigate the structural foam layer during removal of the device from contact with a patient's skin and applying hemostatic surface to a limited area of skin of the patient.