公开(公告)号：US20090138071A1

公开(公告)日：2009-05-28

申请号：US12084470

申请日：2006-11-16

申请人： Yingsheng Cheng ,  Xing Zhou ,  Ming Zhu

发明人： Yingsheng Cheng ,  Xing Zhou ,  Ming Zhu

IPC分类号： A61F2/06

CPC分类号： A61F2/90 ,  A61F2/07 ,  A61F2/2412 ,  A61F2/2418 ,  A61F5/0076 ,  A61F2002/044 ,  A61F2230/0078 ,  A61F2250/0039

摘要： 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.

摘要翻译： 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。