ABSORBENT ELEMENT AND ABSORBENT PRODUCT Russian patent published in 2023 - IPC A61F13/534 

FIELD: medical products.

SUBSTANCE: in the absorbent element (10), the first core (14) comprising the absorbent polymer (20) is located between the first sheet (11) and the intermediate sheet (13), the second core (15) comprising the absorbent fiber and the absorbent polymer (20) is located between the intermediate sheet (13) and the second sheet (12), the proportion of the absorbent polymer (20) in the material forming the first core (14) is 80 by % of weight or more, the mass ratio of the absorbent polymer (20) comprised in the first core (14) to the total weight of the material forming the first core (14) is higher than the ratio of the weight of the absorbent polymer (20) comprised in the second core (15) to the total weight of the material forming the second core (15), the weight of the absorbent polymer base (20) in the first core (14) is less than the weight of the base of the absorbent polymer (20) in the second core (15), and in the case where BR is the degree of change in the bending stiffness of the multilayer structure consisting of the first sheet (11), the first core (14) and intermediate sheet (13) per unit of change in thickness before and after absorption of the liquid, and the degree of change in bending stiffness is calculated by the following formula (1), BR in each of two directions randomly selected from three directions representing two directions that are orthogonal to each other and another direction that intersects with these two directions without being orthogonal to these two directions is 5.0 or less.

EFFECT: absorbent element capable of absorbing body fluid.

15 cl, 1 tbl, 8 dwg