Wound or skin treatment devices with variable edge geometries

A tissue treatment device, comprising:

• an elastic sheet, comprising:
• a total surface area and a net edge length;
• a planar skin interfacing surface;
• a first undulating edge;
• and
• a second undulating edge farthest and opposite from the first edge;
• wherein the elastic sheet further comprises a first tensile stressed configuration and a second tensile stressed configuration;
• wherein the skin interfacing surface is configured to adhere to skin in the first tensile stressed configuration and configured to partially relax to the second tensile stressed configuration to compress the adhered skin;
• wherein the undulating edges are configured to reduce traction forces imparted by the dressing, at or near one or more locations along the first undulating edge and the second undulating edge;
• one or more locations along the first undulating edge and the second undulating edge relative to an elastic sheet with the same total surface area but a smaller edge length.

A tissue treatment device, comprising:

• an elastic sheet, comprising:
• a planar skin interfacing surface;
• a first undulating edge;
• and
• a second undulating edge farthest and opposite from the first edge;
• wherein the elastic sheet further comprises a first tensile stressed configuration and a second tensile stressed configuration;
• wherein the skin interfacing surface is configured to adhere to skin in the first tensile stressed configuration and configured to partially relax to the second tensile stressed configuration to compress the adhered skin;
• wherein the undulating edges are configured to reduce traction forces imparted by the dressing, at or near one or more locations along the first undulating edge and the second undulating edge;
• and
• wherein the first undulating edge and second undulating edge define a width dressing width and wherein each undulating edge comprises at least two consecutive extensions with an average amplitude, wherein the average amplitude is between about 10% and 40% of the dressing width.

A tissue treatment device, comprising:

• an elastic sheet, comprising:
• a first undulating edge comprising a plurality of consecutive extensions having an amplitude defining a modulation zone, wherein the modulation zone has a total area defined by defined by a proximal boundary along a line or curve of best fit along the troughs, an outer boundary along a line or curve of best fit along the peaks, a first lateral boundary located at a first trough immediately adjacent to a peak, and a second lateral boundary located at a second trough immediately adjacent to a peak, wherein the first and second troughs are two troughs on the first undulating edge that are the farthest apart, wherein each of the plurality of consecutive extensions having an open space there between defining a total open space area, wherein the total open space area is between about 25% and 80% of the total area of the modulation zone;
• a planar skin interfacing surface;
• wherein the elastic sheet further comprises a first tensile stressed configuration and a second tensile stressed configuration;
• wherein the skin interfacing surface is configured to adhere to skin in the first tensile stressed configuration and configured to partially relax to the second tensile stressed configuration to compress the adhered skin;
• wherein the undulating edges are configured to reduce traction forces imparted by the dressing, at or near one or more locations along the first undulating edge and the second undulating edge;
• one or more locations along the first undulating edge relative to an elastic sheet with the same total surface area but a smaller edge length.