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1. 发明申请

US20230129898A1 Stent Conveyor and Stent Conveying System 有权
公开(公告)号：US20230129898A1
公开(公告)日：2023-04-27
申请号：US17914148
申请日：2021-03-24
申请人： Shenzhen Lifetech Endovascular Medical Co., Ltd.
发明人： Benhao Xiao , Wenjun Pu
IPC分类号： A61F2/966
摘要： 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.

2. 发明授权

US11890182B2 Coated stent 有权
公开(公告)号：US11890182B2
公开(公告)日：2024-02-06
申请号：US17297229
申请日：2019-11-22
申请人： Shenzhen Lifetech Endovascular Medical Co., Ltd.
发明人： Benhao Xiao , Wenjun Pu
IPC分类号： A61F2/07 , A61F2/915 , A61F2/82
CPC分类号： A61F2/07 , A61F2/915 , A61F2002/075 , A61F2002/825 , A61F2220/0008 , A61F2250/0037 , A61F2250/0039
摘要： 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.222a,322a) is farther away from the coated unit (110,210,310,410) than other positions on the inward-tilting wave body (122,222,322,422); the first wave rod (122c) is planar, and from the first wave crest (122a,222a,322a) to an end of the exposed unit (120,220,320,420) near the coated unit (110,210,310,410), the radial distance from the inward-tilting wave body (122,222,322,422) to the central axis (102,202,302,402) of the coated unit (110,210,310,410) gradually increases. When the coated stent (100,200,300,400) is implanted into an arterial vessel (10), the inward-tilting wave body (122,222,322,422) forms a certain avoidance space due to the tilt to adapt to the curvature of a large curved side (11) of the arterial vessel (10), and prevents the inward-tilting wave body (122,222,322,422) from directly piercing a branch vessel (20).

3. 发明公开

US20230218417A1 Stent Assembly System and Stent Assembly Method 审中-公开
公开(公告)号：US20230218417A1
公开(公告)日：2023-07-13
申请号：US17914124
申请日：2021-03-24
申请人： Shenzhen Lifetech Endovascular Medical Co., Ltd.
发明人： Wenjun Pu , Benhao Xiao , Qiang Liu , Zhengqing Ling
IPC分类号： A61F2/966 , A61F2/95
CPC分类号： A61F2/966 , A61F2/9522 , A61F2240/001
摘要： 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.

4. 发明申请

US20220023074A1 Coated Stent 有权
公开(公告)号：US20220023074A1
公开(公告)日：2022-01-27
申请号：US17297229
申请日：2019-11-22
申请人： Shenzhen Lifetech Endovascular Medical Co., Ltd.
发明人： Benhao Xiao , Wenjun Pu
IPC分类号： A61F2/915
摘要： 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.222a,322a) is farther away from the coated unit (110,210,310,410) than other positions on the inward-tilting wave body (122,222,322,422); the first wave rod (122c) is planar, and from the first wave crest (122a,222a,322a) to an end of the exposed unit (120,220,320,420) near the coated unit (110,210,310,410), the radial distance from the inward-tilting wave body (122,222,322,422) to the central axis (102,202,302,402) of the coated unit (110,210,310,410) gradually increases. When the coated stent (100,200,300,400) is implanted into an arterial vessel (10), the inward-tilting wave body (122,222,322,422) forms a certain avoidance space due to the tilt to adapt to the curvature of a large curved side (11) of the arterial vessel (10), and prevents the inward-tilting wave body (122,222,322,422) from directly piercing a branch vessel (20).

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