Present invention generally provides a kind of to be filtered with what or deflect embolism or other larger objects and prevent it from entering the endovascular device (100) of the secondary vessels of one or more protection. The device of the invention can include: filter (201), the particle in anti-hemostatic tube pass through the filter； Transverse structure (200) keeps filter； And two Ge Si Line (202,203), transverse structure is attached at proximally and distally (206a, 206b) respectively. These Line can be with what in the deflection or orientation that filter is installed to the intravascular Hou controlling filter of what. In addition, in some embodiments, these Si Line can easily what separated with described device so that filter can be installed in the blood vessel without any significant attachment.本發明總體上提供了一種用於過濾或偏轉栓塞或其它較大物體而防止其進入一個或多個防護的次級血管的血管內裝置(100)。本發明的裝置可包括：過濾器(201)，防止血管中的顆粒穿過所述過濾器；橫向結構(200)，保持過濾器；以及兩個絲綫(202，203)，分別在遠端和近端(206a，206b)處附接橫向結構。這些絲綫可用於在將過濾器安裝於血管內之後控制過濾器的偏轉或定向。另外，在一些實施例中，這些絲綫能够易於與所述裝置分離，由此使得能够在無任何顯著附件的情况下在血管中安裝過濾器。
