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 double-layer lumen stent (100) includes a main body lumen stent (10) and an outer-layer skirt stent (20) surrounding an outer wall of the main body lumen stent (10); the outer-layer skirt stent (20) includes a support structure (21) and a cover layer (22) arranged on the support structure (21); one end of the outer-layer skirt stent (20) is connected to the outer wall of the main body lumen stent (10); the other end of the outer-layer skirt stent (20) is an opening structure (24) composed of the support structure (21); and the cover layer (22) is formed into an oblique cut shape at an edge of the opening structure (24).

Abstract: The present invention belongs to the field of medical devices, and specifically relates to a stent-graft. The stent-graft has a proximal greater curvature side and a proximal lesser curvature side. The stent-graft includes a stent body, an inner cover membrane disposed on the inner side of the stent body, and an outer cover membrane disposed on the outer side of the stent body. The stent body includes a plurality of wave rings axially arranged at intervals. Alternatively arranged crests and troughs are formed on the wave rings. The outer cover membrane is provided with a first opening, and the first opening exposes at least one trough located at or nearer to the proximal greater curvature side. According to the stent-graft of the embodiments of the present invention, the exposed trough can easily hang on a vessel wall, and thereby achieving the function of preventing the stent-graft from shifting.

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 comprises a radially compressible inner stent and an outer stent covering the inner stent, the inner stent comprises an inner support skeleton and an inner coating film arranged on the inner support skeleton; and the outer stent covering the inner stent, wherein the outer stent covers at least part of the inner stent, the outer stent comprises an outer support skeleton and an outer coating film arranged on the outer support skeleton, one end of the outer coating film is hermetically connected to the inner coating film, and the resilience of the outer coating film is greater than that of the inner coating film. The inner covering film is relatively soft. The outer covering film can rebound quickly, the outer stent effectively fills the gap between the inner stent and the wall of the lumen, so as to prevent inner leakage.

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: 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 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 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.