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实用新型
CN201719412U 带有防反流膜瓣的胆道支架 失效 - 权利终止 转让

带有防反流膜瓣的胆道支架
摘要：
一种带有防反流膜瓣的胆道支架，包括由钛镍记忆合金丝编织的网状圆柱形支撑架(1)，其特征是在所述的支撑架(1)的一端吊装有椭圆形防反流膜瓣(2)或圆锥形防反流膜瓣(5)。以及一种带有防反流膜瓣的胆道支架，包括由钛镍记忆合金丝编织的网状圆柱形支撑架(9)，其特征是在所述的支撑架(9)的近端内收端口连接有奶嘴形防反流膜瓣(10)。本实用新型能更有效的起到防反流作用，防反流效果不会因病人体位变化而发生变化，奶嘴形防反流膜瓣能防止十二指肠内容物滞留支架端部，保持支架通畅性，治疗效果更好。
摘要（英）：

The utility model discloses a biliary stent with anti-backflow flap. The stent comprises a netty cylindrical support frame (1) woven by titanium-nickel memory alloy wires and is characterized in that one end of the support frame (1) is hung with an elliptic anti-backflow flap (2) or a conical anti-backflow flap (5). The biliary stent with the anti-backflow flap comprises a netty cylindrical support frame (9) woven by titanium-nickel memory alloy wires and is characterized in that the near-end adduction port of the support frame (9) is connected with a nipple-shaped anti-backflow flap (10). The biliary stent can play the role of resisting backflow more effectively, the anti-backflow effect can not change along with the position of the patient, the nipple-shaped anti-backflow flap can prevent the duodenum contents from retaining at the end part of the stent so as to keep the stent to be unobstructed and obtain better curing effect.

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