초록 ▼

A urethral catheter composed of olefin polymer, diene polymer or silicone polymer as a base material wherein an antimicrobial substance being chemically bonded with the inside wall and/or the outside wall thereof, and a process for producing the same. This urethral catheter effectively prevents urin

A urethral catheter composed of olefin polymer, diene polymer or silicone polymer as a base material wherein an antimicrobial substance being chemically bonded with the inside wall and/or the outside wall thereof, and a process for producing the same. This urethral catheter effectively prevents urinary tract infection for a long period of time.

대표청구항 ▼

A urethral catheter capable of preventing urinary tract infection, comprising: a urethral catheter comprised of a material selected from the group consisting of an olefin polymer, a diene polymer or a silicone polymer as the base material; and an antimicrobial substance being ionically bonded with c

A urethral catheter capable of preventing urinary tract infection, comprising: a urethral catheter comprised of a material selected from the group consisting of an olefin polymer, a diene polymer or a silicone polymer as the base material; and an antimicrobial substance being ionically bonded with carboxyl groups in a film provided on the inside and/or outside walls of said urethral catheter, wherein: (a) said film is a hydrolysis product of the reaction product obtained by reacting (A) a copolymer of maleic acid anhydride and a copolymerizable compound with (B) a polyfunctional compound having hydroxyl groups under a condition of an excess amount of said polymer (A), and (b) The copolyer of maleic acid anhydride and a copolymerizable compound is a mixture of (I) about 0.5 to about 99.5 parts by weight of a copolymer of maleic acid anhydride and a copolymerizable vinyl monomer or olefin monomer and (II) about 0.5 to about 99.5 parts by weight of a copolymer of maleic acid anhydride and a copolymerizable aliphatic vinyl ester or aliphatic vinyl ether.