MEDICAL TUBE AND CATHETER

摘要

A medical tube includes a first portion, a second portion, a third portion, and a fourth portion in this order from a proximal side to a distal side thereof. The first portion has a tubular resin layer, the second portion has a tubular inner layer and outer layer, the third portion as an inner layer and outer layer, and the fourth portion has a tubular resin layer. When flexural rigidity of the first portion, the second portion, the third portion, and the fourth portion is G1, G2, G3, and G4, respectively, the flexural rigidity of each portion being configured to have a relationship with each other portion based upon the following expression (1):;G1>G2>G3>G4  (1)

主权项

1. A resin medical tube comprising, in the following order from a proximal side toward a distal side:
a first portion; a second portion; a third portion; and a fourth portion, wherein the first portion has a tubular resin layer, wherein the second portion has a tubular inner layer and a tubular outer layer provided on an outer periphery side of the inner layer, wherein the third portion has a tubular inner layer and a tubular outer layer provided on an outer periphery side of the inner layer, wherein the fourth portion has a tubular resin layer, and wherein when the rigidity of the first portion is G1, the rigidity of the second portion is G2, the rigidity of the third portion is G3, and the rigidity of the fourth portion is G4, the rigidity of each portion having a relationship with each other potion based upon the following expression (1):
G1>G2>G3>G4  (1).