US 12,268,576 B2
Extensible dressings
Leonardo Caneppele, São José dos Campos (BR); Andre Narcizo, São José dos Campos (BR); Paulo Cesar de Godoy Oriani, Sao Paulo (BR); Carmine Rizzo, Port St. Lucie, FL (US); and Andre Luiz Santos, São José dos Campos (BR)
Assigned to Kenvue Brands LLC, Summit, NJ (US)
Filed by Johnson & Johnson Consumer Inc., Skillman, NJ (US)
Filed on Apr. 11, 2018, as Appl. No. 15/950,341.
Claims priority of provisional application 62/483,989, filed on Apr. 11, 2017.
Prior Publication US 2018/0289552 A1, Oct. 11, 2018
Int. Cl. A61F 13/00 (2024.01); A61F 13/01 (2024.01); A61F 13/02 (2024.01); A61F 13/0206 (2024.01); A61L 15/26 (2006.01)
CPC A61F 13/00 (2013.01) [A61F 13/01025 (2024.01); A61F 13/01038 (2024.01); A61F 13/023 (2013.01); A61F 13/0243 (2013.01); A61F 13/0266 (2013.01); A61L 15/26 (2013.01); A61F 2013/00595 (2013.01); A61F 2013/00604 (2013.01); A61F 2013/00655 (2013.01); A61F 13/0206 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An adhesive bandage comprising:
(a) a dressing comprising a layer of material comprising a laminate having a nonwoven layer comprising polyester fibers and a nonstick, high density polyethylene net, the layer of material having a plurality of material free regions, wherein:
(i) the material free regions are in the form of curvilinear sigmoid pattern units, the curvilinear sigmoidal pattern units having dimensions and oriented and arranged in a regular array such that the layer of material has a Stretchability Testxy extension in at least one of a 45° diagonal direction of at least 1125% more than the same layer of material without material free regions when applying a force of from 0.2 kgf along such 45° diagonal direction of the layer of material; and
(ii) the curvilinear sigmoidal pattern units have a width w and a length I, and further wherein the length I of the curvilinear sigmoidal pattern unit is from 1 to 6 times the width w of the curvilinear sigmoidal pattern unit; and
(b) a backing layer comprising an elastomeric film having an adhesive disposed on a major surface thereof and being adhered to the nonwoven layer of the laminate;
wherein, upon application of the adhesive bandage to a user's skin in a substantially unstressed condition, the dressing is capable of stretching with the skin during use to minimize detachment of the dressing therefrom.