胶乳气囊导尿管堵塞的研究  

Study on the Blocking of Latex Aerocyst Urethral Catheter

作　　者：李志锋[1] 杨子明[1] 李普旺[1] 

机构地区：[1]中国热带农业科学院农产品加工研究所,广东湛江524001

出　　处：《特种橡胶制品》2015年第1期58-62,70,共6页Special Purpose Rubber Products

基　　金：中国热带农业科学院橡胶研究所基本科研业务费专项(No.1630022013019)资助;海南省国际科技合作专项(KJHZ2014-10)资助;湛江市非资助科技攻关计划项目(No.2013B01083)

摘　　要：使用充液漏斗向天然胶乳气囊导尿管(以下简称导尿管)的气囊中注入额定容量的空气或无菌水时,会遇到难注入或注不入的问题;在气囊正常膨胀条件下,使用充液漏斗抽出气囊中的空气或无菌水时,会遇到难抽出或抽不出(简称堵塞)的问题。针对前述2类问题进行了研究。结果表明,采用黑胶丝代替尼龙丝作形成导尿管毛细管腔的模具材料,规范夹孔操作工艺杜绝小胶屑掉落到生产环境中,控制用作隔离剂的硅橡胶溶液浓度不超过2%,规范隔离剂涂覆工艺避免出现隔离剂涂层脱落,在浓缩天然胶乳中掺入20份天甲胶乳(MG49)用作基础管身胶料或在基础管身硫化胶乳中加入30份碳酸钙分散体提高管身硬度等,是减少导尿管毛细管腔发生堵塞的有效途径。When the either rated capacity air or the sterile water was injected into the aerocyst of the natural latex aerocyst urethral catheter by using charging hopper,the problews of the difficult injection and no injection could often be encountered.When the aerocyst normally expanded and either the air or the sterile water inside the aerocyst was drawed out by using charging hopper,the problems of the difficult injection and no injection could often be encountered,too.The 2kinds of problems were researched.The results showed that the black rubber silk was used as the material of catheter capillary modes to replace nylon yarn,and the clamping hole operation was specified to eliminate small rubber crumbs falling in the production environment,and the concentration of silicone rubber solution used as isolation agent was controlled to be less than 2%,and the isolation agent operation was specified to avoid the isolation agent coat to fall off,and 20 phr MG49was added in the concentrated natural latex to be used as the basic tube body material or 30 phr calcium carbonate was added in vulcanized rubber latex to improve the hardness of basic tube body,etc.These methods were all the effective ways reducing the capillary lumen blocking of urethral catheter.

关 键 词：天然乳胶 气囊 导尿管 毛细管腔 堵塞 

分 类 号：TQ331.2[化学工程—橡胶工业]