Patent ID: 11931479
Assignee: GUNZE LIMITED
Field: Medical technology (Instruments)
Classification: CPC A  D | IPC A  D

Claim 0:
1. An artificial blood vessel having a tubular shape, comprising:
a foam containing a bioabsorbable material;
a reinforcement A containing a bioabsorbable material; and
a reinforcement B including threads containing a bioabsorbable material,
the foam being reinforced with the reinforcements A and B,
wherein the reinforcement A is a non-woven fabric, a film, or a weft-knitted, warp-knitted, or woven fabric made of knitted or woven fibers,
the reinforcement B includes monofilament threads each having a cross-sectional diameter of 0.1 mm or more and 1 mm or less,
the reinforcement B includes a winding portion having a helical shape, a ring shape, or an X shape and a warp thread portion stretched in a direction parallel to a longitudinal direction of the artificial blood vessel, and
the artificial blood vessel is a composite including the reinforcement A and reinforcement B inside the foam,
wherein the winding portion includes a pair of helical threads containing a bioabsorbable material and combined to have opposite winding directions, and
an intersection of the threads is tied with a thread constituting the warp thread portion.