PERFORATED WEB Russian patent published in 2018 - IPC A61F13/15 

FIELD: instrument engineering.

SUBSTANCE: present invention relates to a web comprising individual protruding elements having open proximal ends, open or closed distal ends and sidewalls; macro-holes located with a shift relative to each other; the first areas containing the first upper plane; and the second regions, comprising the second upper plane, the length of which is less than or equal to about 0.9 mm, each of the first regions surrounded by four different second regions, besides four different second regions being connected by two adjacent macro-holes in the first direction and the other two adjacent macro-holes in the second direction, which is perpendicular to the first direction, and each of the second regions is surrounded by two adjacent first regions and two adjacent macro-holes, located in the third direction or the fourth direction, which are not parallel to either the first direction or the second direction.

EFFECT: web containing individual protruding elements is proposed.

19 cl, 26 dwg