US 10,765,780 B2 · Method of producing tissue regeneration substrate

Abstract

The present invention aims to provide a tissue regeneration substrate excellent in penetrability to cells as well as capable of effectively preventing cell leakage from the tissue regeneration substrate to accelerate tissue regeneration; and a method of producing the tissue regeneration substrate. The present invention relates to a tissue regeneration substrate including: a nonwoven fabric made of a bioabsorbable material, the tissue regeneration substrate having a laminated structure in which a layer containing a nonwoven fabric having an average pore size of 20 to 50 μm and a layer containing a nonwoven fabric having an average pore size of 5 to 20 μm are integrated.

Claims4

Dependent claims

A method of producing a tissue regeneration substrate comprising:

preparing a layer containing a nonwoven fabric having an average pore size of 20 to 50 μm;
discharging threads made of a bioabsorbable material on the layer containing a nonwoven fabric having an average pore size of 20 to 50 μm by melt blowing to form a layer containing a nonwoven fabric having an average pore size of 5 to 18 μm to produce a stack;
and
needle-punching the stack to integrate the layer containing a nonwoven fabric having an average pore size of 20 to 50 μm and the layer containing a nonwoven fabric having an average pore size of 5 to 18 μm.

1 more element

Dependencies are inferred from the claim text.

Method of producing tissue regeneration substrate

Life of this patent

Method of producing tissue regeneration substrate

Life of this patent

Abstract

Claims4