US 12,458,537 B1
Osmotic bandage
Charles Magee, Cairo, GA (US)
Assigned to Florida A&M University, Tallahassee, FL (US)
Filed by Florida A&M University, Tallahassee, FL (US)
Filed on Apr. 11, 2023, as Appl. No. 18/298,774.
Application 18/298,774 is a continuation in part of application No. 16/566,231, filed on Sep. 10, 2019, abandoned.
Claims priority of provisional application 62/729,121, filed on Sep. 10, 2018.
Int. Cl. A61F 13/0206 (2024.01); A61F 13/00 (2024.01); A61F 13/0203 (2024.01); A61F 13/05 (2024.01); A61L 15/18 (2006.01); A61L 15/28 (2006.01); A61L 15/42 (2006.01); A61L 15/46 (2006.01)
CPC A61F 13/0206 (2013.01) [A61F 13/00063 (2013.01); A61F 13/0223 (2013.01); A61F 13/05 (2024.01); A61L 15/18 (2013.01); A61L 15/28 (2013.01); A61L 15/425 (2013.01); A61L 15/46 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An osmotic bandage for improved drainage at a wound site, the osmotic bandage comprising:
a bandage strip including a first surface opposite a second surface, the first surface having an adhesive portion;
a multi-layered dressing pad coupled to the first surface, the multi-layered dressing pad including a plurality of discrete layers, wherein one of the plurality of discrete layers is disposed proximate to the first surface of the bandage strip; and
a drainage tube disposed between adjacent layers of the plurality of discrete layers, such that the drainage tube is spaced apart from the first surface of the bandage strip, the drainage tube defining an internal compartment and including a discontinuous outer surface that defines a plurality of fluid flow channels therein, such that the plurality of fluid flow channels are in fluidic communication with the internal compartment;
the one of the plurality of discrete layers that is disposed proximate to the first surface of the bandage strip being configured to contact the wound site;
a second layer of the plurality of layers including a salt-laced gauze pad having an amount of salt infused therein, wherein the amount of salt is configured to facilitate, via osmosis, movement of an exudate from the wound site to the multi-layered dressing pad, such that the second layer drains the wound site;
the drainage tube including an amount of salt disposed within each of the plurality of fluid flow channels defined by the drainage tube, wherein the amount of salt is configured to facilitate, via osmosis, movement of the exudate from the wound site to the multi-layered dressing pad, such that the drainage tube drains the wound site; and
wherein the drainage tube comprises a terminal attachment point extending outward laterally along the center line of the bandage strip, the terminal attachment point defining a fluid pathway between the drainage tube and an external fluid chamber.