Abstract: A lumen stent (100) and an implant are provided. The lumen stent includes a tubular body (11), an inner branch (12) and an outer branch (13) which are respectively communicated with the tubular body (11). The tubular body (11) includes a first body segment (111), a tapered segment (112) and a second body segment (113) which are connected in sequence. The tapered segment (112) is provided with an outer branch window (110b) and an inner branch window (110a). The proximal end of the outer branch (13) is connected to the outer branch window (110b). The distal end of the inner branch (12) is connected to the inner branch window (110a). The area of the inner branch window (110a) is larger than that of the outer branch window (110b).

Abstract: A covered stent (100) includes a first wave ring (20) provided on at least one end of the covered stent (100), wherein the first wave ring (20) is formed of braided wires by means of braiding; each of the braided wires has wire heads (21) and a wire rod (22), with the wire heads (21) being located at two ends of the wire rod (22); and the wire heads (21) of the braided wire are wound around the adjacent wire rod (22); and the covered stent (100) further includes a limiting unit (40), with the limiting unit (40) being arranged on the wire head (21) and the wire rod (22) adjacent to the wire head (21), and the limiting unit (40) limiting the range of axial and/or radial movement of the wire head (21) relative to the wire rod (22).

Abstract: 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.

Abstract: A coated stent (100,200,300,400), comprises a coated unit (110,210,310,410), and an exposed unit (120,220,320,420) which is a ring-shaped structure and which is provided on the periphery (113,213,313) of an end portion (112,212,312) of the coated unit (110,210,310,410); the exposed unit (120,220,320,420) comprises an inward-tilting wave body (122,222,322,422), the inward-tilting wave body (122,222,322,422) comprising at least a first wave crest (122a,222a,322a) and a first wave rod (122c) connected to the first wave crest (122a,222a,322a); the position of the first wave crest (122a.

Abstract: The present disclosure provides a covered stent. The covered stent has a hollow tubular structure provided with openings at two ends, and includes a main body stent, a window being arranged in a surface of the main body stent. The covered stent further includes an internal covering film; an edge of the internal covering film is connected to the main body stent, and a through hole communicating with an inner cavity of the covered stent is also formed in the internal covering film. The covered stent further includes a window supporting member, the window supporting member being arranged outside the internal covering film and protruding outwardly from a surface of the internal covering film.

Abstract: A covered stent (10), comprising a main body stent (11), a window (13) being formed on a surface of the main body stent (11). The covered stent (10) further includes an internal covering film (14). An edge of the internal covering film (14) is connected to the main body stent (11). The internal covering film (14) includes a bottom portion (141), a proximal end folding portion and a distal end folding portion, and the proximal and distal end folding portions are disposed at two ends of the bottom portion (141), respectively. At least one of the proximal end folding portion and the distal end folding portion is disposed on an inner surface of the main body stent (11), and is recessed toward an inner cavity of the main body stent (11) to form a receiving cavity, and a through hole (147) that communicates with the inner cavity of the main body stent (11) is also formed on the internal covering film (14).

Abstract: A membrane-covered stent (100), including a first stent (110), a second stent (120) and a covering membrane (130); the covering membrane (130) is covered on the first stent (110) so as to form a lumen structure having a recess (140) in a middle portion; the second stent (120) is at least partially accommodated in the recess (140); and a longitudinal central axis (I-I) of the first stent (110) is parallel or substantially parallel to a longitudinal central axis (II-II) of the second stent (120). The membrane-covered stent (100) can prevent or delay a bottom surface (140a) of the recess (140) from being attached to an opening of a branch vessel (101).

Abstract: A delivery apparatus includes a sheath assembly, a tip, and a handle assembly. The sheath assembly includes an inner core tube, a push tube surrounding and receiving the inner core tube, and a sheath surrounding and receiving the push tube and capable of moving axially relative to the push tube. The tip is connected to the distal end of the inner core tube. The handle assembly is connected to the proximal end of the sheath. A tube cavity channel for the inner core tube to extend through is provided within the push tube. A guide wire channel also is provided in the push tube. A limiting mechanism is provided on the tip and is used for being detachably connected to a guide wire extending through the guide wire channel.

Abstract: The present invention relates to an endoluminal stent and an endoluminal stent system, with the endoluminal stent being delivered to a site at which it is to be implanted by means of a delivery device comprising a sheath for receiving the endoluminal stent.

Abstract: 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.

Abstract: A covered stent (100A), including a mesh-shaped support structure, and further including a first section (10A) and a second section (20A) connected to a proximal end and/or a distal end of the first section. The first section includes a plurality of first corrugated rings (11A), and a first covering film (12A) which covers surfaces of the first corrugated rings; the second section includes a plurality of second corrugated rings (21A), two adjacent second corrugated rings being fixedly connected to each other; a plurality of windows (201A) are formed between the plurality of second corrugated rings; and the plurality of first corrugated rings and the plurality of second corrugated rings form the support structure.

Abstract: A vascular stent, including an inner stent tube as well as a proximal support and a distal support which are arranged on an outer wall of the inner stent tube. When the vascular stent is in a compressed configuration, the proximal support and the distal support are both folded and close to the outer wall of the inner stent tube; when the vascular stent is expanded from the compressed configuration to an expanded configuration, a free end of the proximal support expands towards the distal end of the vascular stent, and a free end of the distal support expands towards the proximal end of the vascular stent. The vascular stent can be anchored to a main stent tube in a blood vessel by the proximal support and the distal support, preventing the vascular stent from shifting or becoming dislodged after being transplanted into the main stent tube.

Abstract: A stent graft; the stent graft is provided in the axial direction thereof with at least one Region T, and the Region T includes a plurality of wavy rings; in the circumferential direction, the Region T includes a region A and a Region B that is connected to the region A, the ratio of the area of the region A to the area of the Region T being 1/4-2/3, the ratio of the coverage rate of the wavy rings in the region A to the coverage rate of the wavy rings in the Region B being 1/5-9/10, and the ratio of the coverage rate of the wavy rings within any circular region having a diameter of 20 mm within the region A to the coverage rate of the wavy rings in the region A being 0.7-1.3.

Abstract: A stent assembly system and a stent assembly method are provided. The stent assembly system includes a stent and an assembly instrument; the assembly instrument is configured to assemble and deliver the stent, and includes a sheath core tube, an outer sheath tube, and an assembly part; the outer sheath tube slidably surrounds the sheath core tube in an axial direction; an accommodating cavity for accommodating the stent is formed between the inner wall of the outer sheath tube and the outer wall of the sheath core tube; the assembly part has a fixed end and a free end opposite to the fixed end, and the fixed end is connected to the sheath core tube; and when the stent is crimped radially on the sheath core tube, the free end is hooked to the stent to limit the stent.

Abstract: A stent delivery device (110) and a stent delivery system (100) are provided. The stent delivery device (110) includes a sheath core tube (112), an outer sheath tube (113) and an assembly (118). The outer sheath tube (113) is slidably provided on and surrounds the sheath core tube (112) in an axial direction, and an accommodating cavity (116) for accommodating a stent (120) is formed between the inner wall of the outer sheath tube (113) and the outer wall of the sheath core tube (112). The assembly (118) has a fixed end and a free end opposite to the fixed end. The fixed end is connected to the sheath core tube (112). When the stent (120) is radially pressed against the sheath core tube (112), the stent (120) is limited by the hooking of the free end to the stent (120). The stent delivery device (110) may improve the accuracy of assembly.

Abstract: A branch vessel stent including a stent body and a first developing member, where the first developing member includes a first developing portion and a second developing portion. A length of the first developing portion and a length of the second developing portion in an axial direction of the stent body are both not less than 0.5 mm. A distance between the intersections of the first developing portion and the second developing portion on a plane perpendicular to the axial direction of the stent body gradually increases from a position where the distance is the minimum distance to an end that is away from a first end of the first developing portion or the second developing portion. The minimum distance between the intersections of the first developing portion and the second developing portion on a plane perpendicular to the axial direction of the stent body is less than 2 mm.

Abstract: A luminal stent includes a tube body that can be compressed and expanded in the radial direction, and an anti-leakage structure. The tube body is divided by the anti-leakage structure into a first tube body positioned on one side of the anti-leakage structure, and a second tube body positioned on the other side of the anti-leakage structure, with at least part of the first tube body being encircled by the anti-leakage structure. In a compressed state, the maximum compression diameter of the anti-leakage structure and the first tube body encircled by the anti-leakage structure is greater than or equal to the maximum compression diameter of the second tube body.

Abstract: A stent graft, including multiple wavy rings. The stent graft includes, in a circumferential direction, a region A and a region B connected to the region A. Each wavy ring includes a first wavy section located in the region A, and a second wavy section located in the region B. The wave included angle of the first wavy section is about 70°-120°; the ratio of the wave height of the first wavy section to the spacing between adjacent first wavy sections is 1/4-3; the wave included angle of the second wavy section is 30°-60°, the ratio of the wave height of the second wavy section to the spacing between adjacent second wavy sections is 1/4-3/2, and the ratio of the wave height of the first wavy section to the wave height of the second wavy section is greater than or equal to 1/3 and less than 1.

Abstract: A luminal stent has a tube body and a skirt surrounding the tube body. The skirt has a flexible connecting section and a stent graft connected to a proximal end of the flexible connecting section. A distal end of the flexible connecting section is sealed and connected to the outer surface of the tube body. A proximal end of the stent graft is suspended and provided with a first radial support structure. When the flexible connecting section is radially compressed, at least a part of the first radial support structure is bent towards a direction distant from the tube body. Also provided is a stent system including the luminal stent. The stent system and the luminal stent can prevent type III endoleaks.

Abstract: A stent graft comprises a plurality of wavy rings sequentially arranged in a spaced manner, and membranes fixed to the plurality of wavy rings, wherein the stent graft comprises, in a circumferential direction, at least one keel region and a non-keel region connected to the keel region, the keel region having an axial shortening rate that is less than that of the non-keel region, and the axial shortening rate of the keel region is 10-40%. The stent graft can be bent in all directions, and the keel region on the stent graft can provide a sufficient amount of an axial support force for the stent.