Devices, systems, and methods for occluding anatomical pathway

A device for occluding a flow of material is formed as a simple structure that allows a compact delivery configuration that is convertible to an expanded deployment configuration. The device has at least one expandable portion formed from a plurality of elongate longitudinally extending frame elements. The frame elements may be spaced apart to define a space therebetween, and a flexible occlusion material may be provided to block a flow of matter through such space. The flexible occlusion material may form one of the two expandable portions of the device without the need for a frame element. 一种用于闭塞物质流的装置形成为简单的结构，其允许可转换至扩张的部署形态的紧凑输送形态。所述装置具有至少一个由多个细长的纵向延伸框架元件形成的可扩张部分。框架元件可间隔开以限定其间的空间，并且可提供柔性闭塞材料以阻挡通过这种空间的物质流。柔性闭塞材料可形成所述装置的两个可扩张部分中的一个，而不需要框架元件。