US 12,252,813 B2
Radially cross-aligned nanofiber membrane
Maurice Haff, Edmond, OK (US)
Assigned to UNIVERSITY OF CENTRAL OKLAHOMA, Edmond, OK (US)
Filed by University of Central Oklahoma, Edmond, OK (US)
Filed on Feb. 15, 2024, as Appl. No. 18/442,805.
Application 18/442,805 is a continuation of application No. 17/553,539, filed on Dec. 16, 2021, granted, now 11,913,139.
Application 17/553,539 is a continuation of application No. 17/229,612, filed on Apr. 13, 2021, granted, now 11,208,735, issued on Dec. 28, 2021.
Application 17/229,612 is a continuation in part of application No. 16/909,077, filed on Jun. 23, 2020, granted, now 10,995,425, issued on May 4, 2021.
Application 16/909,077 is a continuation in part of application No. 16/833,116, filed on Mar. 27, 2020, granted, now 10,876,223, issued on Dec. 29, 2020.
Application 16/833,116 is a continuation of application No. 16/460,589, filed on Jul. 2, 2019, granted, now 10,640,888, issued on May 5, 2020.
Prior Publication US 2024/0200230 A1, Jun. 20, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. B32B 5/26 (2006.01); B01D 67/00 (2006.01); B05B 5/053 (2006.01); B05B 5/08 (2006.01); B05B 5/14 (2006.01); B05C 19/02 (2006.01); B05D 3/02 (2006.01); B32B 5/12 (2006.01); D01D 5/00 (2006.01); D04H 1/413 (2012.01); D04H 3/02 (2006.01)
CPC D01D 5/0092 (2013.01) [B01D 67/00042 (2022.08); B05B 5/0536 (2013.01); B05B 5/082 (2013.01); B05B 5/14 (2013.01); B05C 19/025 (2013.01); B05D 3/0254 (2013.01); B32B 5/12 (2013.01); B32B 5/266 (2021.05); D01D 5/0084 (2013.01); D04H 1/413 (2013.01); D04H 3/02 (2013.01); B32B 2307/7163 (2013.01); B32B 2535/00 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A fiber membrane, comprising electrospun fiberizeable material in at least three adjacent layers of nanofibers, each layer comprising a plurality of aligned nanofibers oriented at oblique angles relative to nanofibers in adjacent layers, said plurality of aligned nanofibers in each layer extending from a first membrane edge to a second membrane edge, wherein a plurality of aligned nanofibers in each layer cross a plurality of aligned nanofibers in adjacent layers at a plurality of distinct points of intersection, forming a crossing at each distinct point of intersection consisting of three crossing nanofibers extending directionally as six radials from each of said distinct points of intersection, wherein relative cross-alignment angles between said six radials at each distinct point of intersection are in the range of 50 to 70 degrees, and wherein said relative cross-alignment angles of said aligned nanofibers and spacing between said aligned nanofibers each have a specific average numerical value in said membrane and comprise a structure having porosity required for cell migration and exudate flow from a wound, and wherein said aligned nanofibers comprise a polymer and any one or combination of a chromogenic agent, an antimicrobial agent, a hemostatic agent, an analgesic agent, a regenerative agent, an immune modulator, an oxygenating agent, and a pH stabilizer.