At the same time as for the urology medical device by this invention, on the backing material and the backing material or among those the hyaluronic acid which discharge possibly is laid out and, it includes. The urology medical device, when that burying is packed in the urinary organs path of the subject, although it decreases microbial infection, discharges hyaluronic acid at the effective tonnage. As for decrease of microbial infection, it is good to continue at least over 2 weeks. As for the urology medical device, it is good to include the constituent which includes high-molecular quantitative hyaluronic acid. As for the urology medical device, it is good to include the constituent which includes hyaluronic acid this constituent has the multi mode molecular weight distribution which shows with the 1st peak molecular weight which corresponds to the high peak molecular weight and low the 2nd peak molecular weight which corresponds to the peak molecular weight or the intermediate peak molecular weight.本発明による泌尿器科医療デバイスは、基材と、基材の上又はその中に且つ放出可能に配置されたヒアルロン酸と、を含む。泌尿器科医療デバイスは、それが被験者の泌尿器路に埋込まれると、微生物感染を低下させるのに有効な量でヒアルロン酸を放出する。微生物感染の低下は、少なくとも2週間にわたって持続するのがよい。泌尿器科医療デバイスは、高分子量ヒアルロン酸を含む組成物を含むのがよい。泌尿器科医療デバイスは、ヒアルロン酸を含む組成物を含むのがよく、かかる組成物は、高ピーク分子量に対応する第1のピーク分子量と、低ピーク分子量又は中間ピーク分子量に対応する第2のピーク分子量とを示すマルチモード分子量分布を有する。
