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    • 79. 发明申请
    • Cardia Stent
    • 贲门支架
    • US20090138071A1
    • 2009-05-28
    • US12084470
    • 2006-11-16
    • Yingsheng ChengXing ZhouMing Zhu
    • Yingsheng ChengXing ZhouMing Zhu
    • A61F2/06
    • A61F2/90A61F2/07A61F2/2412A61F2/2418A61F5/0076A61F2002/044A61F2230/0078A61F2250/0039
    • The present invention relates to a medical stent, and in particular to a cardia stent for treatment on the narrow carida of the oesophagus. The cardia stent according to the present invention is woven by wires of shape memory NiTi alloy. There is a drum-shaped locating port at its upper end, and a trumpet-shaped locating port at its lower end. The upper drum-shaped locating port is connected with the lower trumpet-shaped locating port by a supporting net tube. The remaining portions other than the drum-shaped locating port are coated with a membrane of medical flexible material that can be implanted into a human body. The cardia stent comprises at least an anti-reflux valve. The anti-reflux valve is of a triple-petal structure protruding downward that is made from a membrane of medical flexible material that can be implanted into a human body. The cardia stent has the advantages of: difficult to shift, matching with carida anatomy, high anti-reflux ability, easy operation, resisting the corrosion of gastric juice, and it can be used in expansion treatment on the narrow carida caused by variable reasons.
    • 医疗支架技术领域本发明涉及一种医用支架,特别是涉及一种用于在食道狭窄的假体上进行治疗的贲门支架。 根据本发明的贲门支架由形状记忆NiTi合金的丝线编织。 在其上端有一个鼓形定位口,在其下端有一个喇叭形定位口。 上鼓形定位口通过支撑网管与下喇叭形定位口连接。 鼓形定位口以外的其余部分涂有可植入人体的医用柔性材料膜。 贲门支架至少包括一个抗回流阀。 防回流阀具有向下突出的三瓣瓣结构,其由可植入人体的医用柔性材料的膜制成。 贲门支架的优点是:难以移位,与carida解剖相符,抗反流能力强,操作方便,抵抗胃液腐蚀,可用于扩张治疗由于可变原因引起的狭窄carida。