Abstract: A left atrial appendage (LAA) occluder and an occluding system are provided. The LAA occluder includes a sealing portion and an ablation portion arranged in the sealing portion, as well as a hollow proximal connector at a proximal end of the sealing portion. The ablation portion is connected to the proximal connector. The ablation portion is used to freeze an LAA after being injected with cryogen so as to form an annular isolation band on an inner wall of the LAA for blocking the conduction of electrical signals between the LAA and a left atrium.

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 puncturing device and an anchoring device, the puncturing device including: a puncturing needle, an inflatable anchoring balloon, and a catheter which passes through a proximal end and distal end of the anchoring balloon, the puncturing needle being movably accommodated within the catheter; in a filled state, a central area of an end portion of the distal end of the anchoring balloon is depressed towards the proximal end to form a depressed area, and a distal end of the catheter is located within the depressed area. The anchoring device includes the anchoring balloon and the catheter. The puncturing device may improve the accuracy and success rate of puncturing, and after puncturing is complete, an expansion balloon may be transported along a guide wire to expand a puncturing opening by simply withdrawing the puncturing needle and a push rod.

Abstract: A delivery device (40) and a delivery system (100) are provided. The delivery device (40) includes an operating handle (410), a regulating member (420) and a first driving assembly (450), where the operating handle (410) includes an accommodating cavity; in a natural state, the regulating member (420) includes a bent section (422), and an end of the regulating member (420) that is away from the bent section (422) extends into the accommodating cavity; the first driving assembly (450) is arranged on the operating handle (410), is connected to the regulating member (420), and is configured to control an axial displacement of the regulating member (420), so that the bent section (422) of the regulating member (420) abuts against an implantable instrument to realize forming of the implantable instrument. The delivery device (40) can form the implantable instrument.

Abstract: A left atrial appendage occluder (200) comprises a sealing part (220), a fixing part (210) disposed at one side of the sealing part (220), and a connection part (230) for connecting the sealing part (220) and the fixing part (210). The radial deformation capacity of the sealing part (220) is greater than the radial deformation capacity of the fixing part (210), and/or, the axial deformation capacity of the sealing part (220) is greater than the axial deformation capacity of the fixing part (210). In the left atrial appendage occluder (200), the radial or axial deformation capacity of the sealing part (220) is configured to be greater than the radial or axial deformation capacity of the fixing part (210), thereby avoiding the situation in which the sealing part (220) is not optimally fitted with the opening of the left atrial appendage (10) when the fixing part (210) is placed inside of the left atrial appendage (10), which in turn enhances the occlusion effect.

Abstract: A left atrial appendage (LAA) occluder includes a sealing portion and a fixing portion connected to the sealing portion, and one or more sealed seed sources encapsulated with radioactive particles. The sealed seed sources are arranged on the sealing portion and/or the fixing portion (20) and configured for forming an annular isolation band on an inner wall of an LAA after the radioactive particles are released. The annular isolation band is configured for blocking the electrical signal conduction between the LAA and a left atrium. In the LAA occluder, the annular isolation band is formed on the inner wall of the LAA by the release of the radioactive particles in the sealed seed sources arranged on the sealing portion and/or the fixing portion.

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: An occlusion device includes a fixing portion with a plurality of supporting bodies; the plurality of supporting bodies include a plurality of supporting sections spaced apart along a circumferential direction of the fixing portion, where tail ends of at least two adjacent supporting sections bend and extend towards the interior of the fixing portion to form a convergence section, by which the tail ends of the at least two adjacent supporting sections are connected; the at least two adjacent supporting sections and the corresponding convergence section form a set of suspended sections, which are spaced and suspended along the circumferential direction of the fixing portion. The suspended sections can adaptively deform according to different internal tissue structures, and prevent a single supporting section from being locally deformed to a large extent, and buffer the supporting section.

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: A luminal stent (100) is provided, including a tubular main body (11) and a semi-releasing device (20) connected to the tubular main body (11). The tubular main body (11) includes a binding area (112) and a non-binding area (111) distributed in a circumferential direction. The semi-releasing device (20) includes a limiting rod (21) located outside the tubular main body (11), and binding lines (22) and limiting fasteners (23) arranged on the tubular main body (11). The binding lines (22) are arranged in the binding area (112). The binding lines (22) each include a fixed end (22a), a binding portion (22b) and a locking portion (22c) which are connected to one another. The fixed ends (22a) are fixedly connected to the tubular main body (11). Both the locking portions (22c) and the limiting fasteners (23) are detachably connected to the limiting rod (21).

Abstract: An occlusion device includes a sealing disc, and a fixing frame connected to the sealing disc and located on one side of the sealing disc. The fixing frame includes a connecting portion connected to the sealing disc and at least one supporting body. The at least one supporting body radiates from the connecting portion and extends towards a proximal end to form a plurality of supporting sections. The supporting section is provided with at least one first restraint portion. The fixing frame is provided with at least one second restraint portion. The occlusion device further includes at least one restraint member. The restraint member is connected to the first and second restraint portion so a portion of the restraint member between the first and second restraint portion generates a restraint force that restrains movement of at least the supporting section.

Abstract: A delivery device (100) is provided, including: a sheath core (20); a TIP head (40), the TIP head (40) being arranged at a distal end of the sheath core (20); and a fixing anchor (30), the fixing anchor (30) is arranged on an outer wall of the sheath core (20) and close to a proximal end of the TIP head (40); the sheath core (20) is fixed relative to the TIP head (40); the fixing anchor (30) is provided with a mounting portion (34), and a pull wire (60) can be accommodated in the mounting portion (34). In a process of loading a stent, the pull wire (60) applies an acting force on the fixing anchor (30), and the fixing anchor (30) is fixedly connected to the sheath core (20) and thus drives the sheath core (20), the TIP head (40) and the stent to move synchronously. Since the pull wire (60) does not directly come into contact with the stent, the stent can be prevented from being deformed due to the pressing of the pull wire (60) on the stent.

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: A left atrial appendage occluder (200) comprises a sealing part (220), a fixing part (210) disposed at one side of the sealing part (220), and a connection part (230) for connecting the sealing part (220) and the fixing part (210). The radial deformation capacity of the sealing part (220) is greater than the radial deformation capacity of the fixing part (210), and/or, the axial deformation capacity of the sealing part (220) is greater than the axial deformation capacity of the fixing part (210). In the left atrial appendage occluder (200), the radial or axial deformation capacity of the sealing part (220) is configured to be greater than the radial or axial deformation capacity of the fixing part (210), thereby avoiding the situation in which the sealing part (220) is not optimally fitted with the opening of the left atrial appendage (10) when the fixing part (210) is placed inside of the left atrial appendage (10), which in turn enhances the occlusion effect.

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: The present invention relates to a left atrial appendage occluder having a sealing disc and a fixing bracket which is connected to the sealing disc and located at one side of the sealing disc; the fixing bracket comprising a connecting portion connected to the sealing disc, and a plurality of supports. After radiating out distally from the connecting portion, the plurality of supports are bent to extend proximally to form a plurality of spaced suspended supporting segments. The left atrial appendage occluder further includes a thin film, with all the supports being connected through the thin film.

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.