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    • 2. 发明申请
    • MULTITUBE CATHETER AND METHOD FOR MAKING THE SAME
    • 多管导管及其制造方法
    • WO2013079961A1
    • 2013-06-06
    • PCT/GB2012/052966
    • 2012-11-30
    • HAMBOLY, Samy AhmedPROBERT, Rhyan
    • HAMBOLY, Samy Ahmed
    • A61M25/00
    • A61M25/0026A61M25/0009A61M2025/0008A61M2025/0031A61M2025/0034B29C65/02B29C65/08B29C65/68B29C66/1122B29C66/5227B29C66/63B29C66/71B29C66/73152B29C66/7332B29C66/73322B29C66/73921B29C66/836B29C66/857B29D23/001B29L2031/7542B29K2021/003B29K2067/00B29K2075/00
    • Multitube catheter and method for making the same are provided. The assembly includes two (T1,T3) tube fused together to form one catheter tube shaft. Each tube has (112,113) one lumen extending longitudinally through the catheter from its distal end to its proximal end. The tubes are fused together by use of heat & pressure. Heat and pressure can be generated by heat Shrinkable tube slides over a segment of catheter tubes while metallic mandrels are passed through each tube lumen to protect the lumens during fusion. The heat Shrinkable tube will shrink once heat is applied. The heat Shrinkable tube will shrink and apply the required pressure over the catheter tubes. Continual heating will melt and re -shape the catheter tubes inside the heat Shrinkable tube while the letter will not be affected due to its high melting temperature. After cooling, the heat Shrinkable tube is to be removed, the metallic mandrels are pulled back and the tubes forming the united catheter tube. One or more of the tubes can be of different hardness, material and/or color. The difference will provide pressure resistant lumen (s), overall catheter elasticity and/or identification. Distal end of the united catheter tube can be split free floating, stepped or tapered tipped. The proximal segment (none fused) will form catheter extension legs.
    • 提供多管导管及其制造方法。 该组件包括两个(T1,T3)管,熔合在一起以形成一个导管管轴。 每个管具有(112,113)一个腔,其从其远端到其近端沿导管纵向延伸穿过导管。 通过使用热和压力将管熔合在一起。 可以通过热量产生热量和压力可收缩的管子在导管管的一段上滑动,同时金属心轴通过每个管腔以在融合期间保护内腔。 一旦加热,热收缩管就会收缩。 热收缩管将收缩并在导管上施加所需的压力。 持续加热将熔化并重新形成热收缩管内的导管,同时信不受其熔融温度的影响。 冷却后,要取出热收缩管,金属心轴被拉回,管形成联合导管。 一个或多个管可具有不同的硬度,材料和/或颜色。 差异将提供耐压腔,整体导管弹性和/或识别。 联合导管的远端可分离自由浮动,阶梯式或锥形倾斜。 近端段(无融合)将形成导管延伸腿。