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弹性体提高病人舒适度及制造优势 - China Medical Device Manufacturer
CMDM

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Sat, January 20th, 2018

2009年10月CMDM电子快讯 » 行业新闻
弹性体提高病人舒适度及制造优势

由Pulmodyne公司制造的O2-RESQ系统用于在病人发生阻塞性心脏衰竭和其他呼吸疾病的情况下立即为病人通气。该系统包括一个面罩,面罩内有一个半透明、柔软无味的圆形弹性体垫圈,采用Teknor Apex公司的Medalist系列医用弹性体制造,用包覆成型工艺,与面罩正面的透明部分连在一起,可与病人脸部密切接合,不会让病人感到不适。

Teknor Apex公司热塑性弹性体事业部医用市场经理Lisa Charno指出,Medalist系列弹性体与用来制造医用面罩的许多弹性体和柔性塑料不同,它不但无味、不含乳胶,且不含邻苯二甲酸盐。

采用包覆成型工艺使Medalist弹性体与硬质基底之间产生强大的附着力,使柔软件和硬质件结合在一起,兼具两者不同性能。Charno指出,这种工艺还有制造上的优点。

“许多医用面罩,包括Pulmodyne的O2-RESQ型面罩,在设计上都有脱模倒角,而工件从模具中脱离出来的时候,脱模倒角就成为问题。Medalist系列材料在模具内快速成型,具有出色的撕裂强度,因此从模具上脱下面罩时不会发生撕裂或拉伸变形。”

Medalist弹性体的比重低于PVC(前者0.88,后者1.13),因此每单位重量可制作的件数更多,而且面罩密封圈的重量比PVC小22%。

Medalist系列医用材料包括33种标准的高纯度弹性体材料,配有全套供设计人员和加工厂商使用的工具和参考资料。该系列材料的硬度范围从5到87(Shore A硬度),有透明、半透明、不透明三种配方。


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