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世界上最长的球囊可缩短手术时间 - China Medical Device Manufacturer
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Fri, January 19th, 2018

2009年6月CMDM电子快讯 » 技术新知
世界上最长的球囊可缩短手术时间

By: Stephanie Steward

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采用超长导管球囊可以缩减手术步骤,从而降低患者的风险。
近年来,利用现有的技术,已能够生产长达180mm的球囊,供各种血管成形术应用。但Precision Extrusion等公司(www.precisionextrusion.com)不时听到客户表示希望有240mm长的球囊,用以缩减长动脉的手术步骤。Advanced Balloon Technologies Medical是一家位于爱尔兰Wexford的小公司,不久前由经验丰富的挤压技术工程师创立。Precision Extrusion与该公司展开合作,目前可以生产长达340 mm的球囊。该产品号称是世界上最长的球囊,其成功问世及生产能力也标志着利用球囊实现降低患者风险的目标迈出重要的一步。

对于膝下 (BTK) 血管成形术等手术,180 mm 或者更短的球囊必须多次充气、放气才能覆盖较长的腿动脉。每次膨胀引起动脉扩张不仅费时,还会对患者造成伤害。“一次扩张对血液的损伤较小,”Precision Extrusion公司总裁Mike Badera解释道。“较长的球囊对医生和患者更有效,因为采用240 mm或者更长的球囊可以一步完成腿部动脉手术。”

据Badera介绍,为了开发球囊生产设备,公司的工程师对现有的挤制工艺进行拆分,尝试一种新的方式利用该技术,并避免重复其他人的错误。结果获得一种更高效的机器,可以缩短吹制周期,而且尽管长度增加,装载导管时也可以加热球囊使之实现均匀的吹制效果。工程师自创的这种机器效率更高,能够生产340mm的球囊,其双层壁厚仅为0.0014英寸,且破裂强度超过17atm。

除BTK球囊外,公司还利用这种新技术挤出导管及球囊,用于神经、肾脏、胃、球囊扩张后凸成形术和经皮穿刺冠状动脉成形术产品的快速原型制造。产品的直径范围为0.5 至 20 mm,长度5 至 340 mm,且可采用多种配置和材料,包括尼龙、PET和聚氨酯。

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