US 11,690,765 B2
Wound dressing materials and methods of making thereof
Martin Coffey, Buffalo Grove, IL (US); and Ramon Verduzco, Mundelein, IL (US)
Assigned to Medline Industries, LP, Northfield, IL (US)
Filed by Medline Industries, LP, Northfield, IL (US)
Filed on Nov. 11, 2020, as Appl. No. 17/94,919.
Application 17/094,919 is a continuation of application No. 15/970,152, filed on May 3, 2018, granted, now 10,864,115.
Application 15/970,152 is a continuation of application No. 14/863,491, filed on Sep. 24, 2015, granted, now 10,045,885, issued on Aug. 14, 2018.
Prior Publication US 2021/0069022 A1, Mar. 11, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 13/00 (2006.01); A61L 15/18 (2006.01); A61L 15/46 (2006.01); A61L 15/26 (2006.01)
CPC A61F 13/00063 (2013.01) [A61F 13/00991 (2013.01); A61L 15/18 (2013.01); A61L 15/26 (2013.01); A61L 15/46 (2013.01); A61L 2300/102 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A wound dressing material comprising a substrate, greater than 2% by weight of a bicarbonate, and a film-forming agent, said film-forming agent serving as a binder for said bicarbonate to said substrate, the film-forming agent and the bicarbonate being present in a ratio of between 1:2 and 2:1 with respect to one another.
 
10. A method of making a wound dressing material, the method comprising:
providing a substrate;
applying an aqueous wound dressing composition to the substrate, said composition comprising a bicarbonate and a film-forming agent, the bicarbonate and the film forming agent being present in the wound dressing composition at a ratio of from 1:2 to 2:1 relative to each other; and
drying the at least a part of the wound dressing material having the at least a portion of the wound dressing solution composition applied thereto to yield a wound dressing material that includes greater than 2% by weight of said bicarbonate.