By dilating the skin without incising the skin at the puncture site before inserting the catheter into the central vein, and with skillful and careful operation, the rates of the local blood seepage and hematoma could be reduced. 采用穿刺部位不切开皮肤直接扩皮置入导管,熟练仔细操作可明显降低局部渗血和血肿的发生率。
Treatment of Urethral Stricture by Guiding and Dilating Urethra with Improved Metallic Catheter 改良金属导尿导管引导尿道扩张治疗尿道狭窄