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1. 发明授权

US11576768B2 Stent graft 有权
公开(公告)号：US11576768B2
公开(公告)日：2023-02-14
申请号：US16956070
申请日：2018-12-11
申请人： LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD
发明人： Caiping Liu , Benhao Xiao
IPC分类号： A61F2/86 , A61F2/07 , A61F2/06
摘要： 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.

2. 发明申请

US20230041280A1 LUMEN STENT 有权
公开(公告)号：US20230041280A1
公开(公告)日：2023-02-09
申请号：US17965235
申请日：2022-10-13
申请人： Lifetech Scientific (Shenzhen) Co., Ltd.
发明人： Benhao XIAO , Deyuan ZHANG , Chang SHU , Chao YIN , Yifei WANG
IPC分类号： A61F2/07
摘要： 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.

3. 发明申请

US20220395279A1 OCCLUDER, OCCLUDING SYSTEM AND CONVEYING DEVICE 有权
公开(公告)号：US20220395279A1
公开(公告)日：2022-12-15
申请号：US17776011
申请日：2020-07-24
申请人： LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD.
发明人： Xianmiao CHEN , Mingjuan FU , Yudu WANG
IPC分类号： A61B17/12
摘要： An occluder, an occluding system, and a conveying device are provided. The occluder includes an occluding frame. The occluding frame includes a first occluding unit, a middle portion occluding unit, a second occluding unit, and waist portions. Both ends of the middle portion occluding unit are connected to the first occluding unit and the second occluding unit, respectively, by the waist portions. A fixing member is sleeved on each waist portion. A channel is formed at a middle portion of each fixing member. The occluding frame has an inner cavity. A first opening is formed on the first occluding unit. A second opening is formed on the second occluding unit. The first opening, the channel, the inner cavity, and the second opening are communicated to form a path. A locking member can be omitted in the occluder.

4. 发明授权

US11523893B2 Covered stent 有权
公开(公告)号：US11523893B2
公开(公告)日：2022-12-13
申请号：US16640868
申请日：2018-08-22
申请人： LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD
发明人： Caiping Liu , Zhen Li
IPC分类号： A61F2/06 , A61F2/90 , A61F2/852
摘要： A covered stent includes a tubular main stent and a connection stent disposed on the main stent. An opening is formed in a side wall of the main stent. The connection stent includes a fixed segment connected to the side wall of the main stent and a free segment connected to the fixed segment. Each of the fixed segment and the free segment further includes a stent and a coating covering the surface of the stent. One end of the free segment distant from the fixed segment is connected to the edge of the opening, and a gap is formed between one side of the free segment near to the side wall of the main stent and the side wall of the main stent. This stent can effectively resolve the problem of the limitation of an adjusted angle at a connection segment of an external connection stent and has better flexibility.

5. 发明申请

US20220361864A1 Occluder Pushing Device and Transport System 有权
公开(公告)号：US20220361864A1
公开(公告)日：2022-11-17
申请号：US17879534
申请日：2022-08-02
申请人： Lifetech Scientific (Shenzhen) Co., Ltd.
发明人： Xiangdong Liu , Xianmiao Chen , Mingjuan Fu
IPC分类号： A61B17/00 , A61B17/12
摘要： The present disclosure relates to an occluder pushing device and an occluder delivery system, wherein the pushing device includes a pushing component and a handle. The pushing component includes a pushing tube and a traction element slidably inserted into the pushing tube. The handle is fixedly connected to a proximal end of the pushing tube and internally provided with a moving component and a locking component. The moving component includes a translation mechanism and a rotation mechanism, where the translation mechanism is used to drive the traction element to move axially inside the pushing tube, and the rotation mechanism is used to drive the traction element to rotate axially inside the pushing tube. The locking component is used to lock relative positions of the traction element and the pushing tube, and the rotation mechanism includes a locking structure for locking or releasing linkage between the rotation mechanism and the traction element. The pushing device of the present invention has provided therein the locking component for locking the traction element and the pushing tube in relative positions, such that when the pushing tube pushes the occluder, the relative positions of the traction element and the pushing tube lock the occluder in a folded state, thereby preventing the occluder from being prematurely released before reaching a pre-determined position.

6. 发明申请

US20220313313A1 PUNCTURING DEVICE AND ANCHORING DEVICE 有权
公开(公告)号：US20220313313A1
公开(公告)日：2022-10-06
申请号：US17843027
申请日：2022-06-17
申请人： LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD
发明人： Weiguo Fu , Mingyang Cai , Gang Wang , Xinjiong Qiu
IPC分类号： A61B17/34
摘要： 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.

7. 发明授权

US11419591B2 Occluder pushing device and transport system 有权
公开(公告)号：US11419591B2
公开(公告)日：2022-08-23
申请号：US16629112
申请日：2018-07-09
申请人： Lifetech Scientific (Shenzhen) Co., Ltd.
发明人： Xiangdong Liu , Xianmiao Chen , Mingjuan Fu
IPC分类号： A61B17/00 , A61B17/12
摘要： The present disclosure relates to an occluder pushing device and an occluder delivery system, wherein the pushing device includes a pushing component and a handle. The pushing component includes a pushing tube and a traction element slidably inserted into the pushing tube. The handle is fixedly connected to a proximal end of the pushing tube and internally provided with a moving component and a locking component. The moving component includes a translation mechanism and a rotation mechanism, where the translation mechanism is used to drive the traction element to move axially inside the pushing tube, and the rotation mechanism is used to drive the traction element to rotate axially inside the pushing tube. The locking component is used to lock relative positions of the traction element and the pushing tube, and the rotation mechanism includes a locking structure for locking or releasing linkage between the rotation mechanism and the traction element. The pushing device of the present invention has provided therein the locking component for locking the traction element and the pushing tube in relative positions, such that when the pushing tube pushes the occluder, the relative positions of the traction element and the pushing tube lock the occluder in a folded state, thereby preventing the occluder from being prematurely released before reaching a pre-determined position.

8. 发明授权

US11413067B2 Puncturing device and anchoring device 有权
公开(公告)号：US11413067B2
公开(公告)日：2022-08-16
申请号：US16477970
申请日：2017-12-19
申请人： LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD
发明人： Weiguo Fu , Mingyang Cai , Gang Wang , Xinjiong Qiu
IPC分类号： A61B17/34
摘要： 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.

9. 发明授权

US11311281B2 Occluder and occlusion device 有权
公开(公告)号：US11311281B2
公开(公告)日：2022-04-26
申请号：US16493985
申请日：2018-03-07
申请人： LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD
发明人： Xianmiao Chen
IPC分类号： A61B17/00
摘要： An occluder and an occlusion device, including: a mesh occlusion body, which defines a cavity, and a proximal end bolt head; the proximal end bolt head configured with a locking hole which penetrates the cavity; the occluder further having a locking member, a distal end of the locking member being connected to a distal end of the occlusion body; the locking member having a connecting portion which is connected to the occlusion body; the diameter of a circumscribed circle of a projection of the first bending portion on a cross section perpendicular to a length direction thereof being smaller than the diameter of the smallest inscribed circle of a locking hole, and the width of a projection of the first bending portion on a plane perpendicular to longitudinal central axis direction of the locking hole being larger than the diameter of the largest inscribed circle of the locking hole.

10. 发明申请

US20220079751A1 Intervention Guidance Device 有权
公开(公告)号：US20220079751A1
公开(公告)日：2022-03-17
申请号：US17418618
申请日：2019-07-10
申请人： Lifetech Scientific (Shenzhen) Co., Ltd.
发明人： Bin Yao , Xiangdong Liu , Wei Jiang , Huixiong Xie
IPC分类号： A61F2/24 , A61B17/02 , A61M25/09
摘要： An intervention guidance device (10) includes a main body portion (100) and a guidance portion (200). The guidance portion (200) has a contracted configuration and an expanded configuration. In the expanded configuration, the guidance portion (200) has a central area (201) and a closed outer edge (202). In the contracted configuration, the outer edge (202) is farther away from the main body portion (100) than the central area (201), and the guidance portion (200) is restorable from the contracted configuration to the expanded configuration. In the intervention guidance device (10), the radial dimension of the guidance portion (200) is larger than the distance between the chordae tendineae, so that an effective access path that does not cross the chordae tendineae can be established, the subsequent implantation of a heart valve prosthesis does not pass through the chordae tendineae, and the success rate of a heart valve prosthesis implantation surgery can be improved.

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