Covered stent
Disclosed is a covered stent ( 100 ), including a hollow tubular main body ( 10 ), and a window ( 20 ) provided on a side wall of the tubular main body ( 10 ). An elastic supporting member ( 30 ) is provided at a periphery of the window ( 20 ); an imaging member ( 40 ) is provided on the elastic supporting member ( 30 ); and at least part of the imaging member ( 40 ) is movably connected to the elastic supporting member ( 30 ). Since the imaging member ( 40 ) and the elastic supporting member ( 30 ) are located at the periphery of the window ( 20 ), the imaging member ( 40 ) and the elastic supporting member ( 30 ) enable the periphery of the window ( 20 ) to simultaneously have a good imaging performance and a good supporting performance.
1. A covered stent, comprising a hollow tubular main body, and a window provided on a side wall of the tubular main body, wherein an elastic supporting member is provided at a periphery of the window; an imaging member is provided on the elastic supporting member; and at least part of the imaging member is movably connected to the elastic supporting member;
wherein the imaging member comprises at least one imaging section; the imaging section comprises a movable portion movably connected to the elastic supporting member, and a fixed portion fixedly connected to the elastic supporting member; and the fixed portion is located outside a proximal end region and a distal end region of the elastic supporting member.
2. The covered stent according to claim 1 , wherein the imaging member comprises two imaging sections; the two imaging sections are symmetrical about a connecting line of a proximal end and a distal end of the elastic supporting member; the imaging sections are spirally wound around the outer surface of the elastic supporting member; and all the imaging sections are located outside the proximal end region and the distal end region of the elastic supporting member.
3. The covered stent according to claim 1 , wherein the imaging member is spirally wound around an outer surface of the elastic supporting member.
4. The covered stent according to claim 3 , wherein the imaging member comprises a plurality of spiral units wound around the elastic supporting member; each spiral unit comprises two connected connecting portions; and an included angle between a tangent line corresponding to intersections of the connecting portions and the elastic supporting member and a center line of the connecting portions is 75 to 90 degrees.
5. The covered stent according to claim 4 , wherein the overlapping part of the two end portions of the elastic supporting member is located in a middle region of the elastic supporting member.
6. The covered stent according to claim 1 , wherein a mounting slot is formed in the elastic supporting member; the imaging member is movably connected into the mounting slot; or, the imaging member comprises a plurality of ring-like imaging units, and the imaging units movably surround the elastic supporting member.