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61. 发明申请

US20200330248A1 Branch Vessel Stent 审中-公开
公开(公告)号：US20200330248A1
公开(公告)日：2020-10-22
申请号：US16913764
申请日：2020-06-26
申请人： Lifetech Scientific (Shenzhen) Co., Ltd.
发明人： Benhao Xiao , Yi Fang
IPC分类号： A61F2/852
摘要： A branch vessel stent comprising a stent body and a first developing member, wherein the first developing member comprises 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 not more than 2 mm. The branch vessel stent is capable of accurately positioning the position thereof, and is capable of identifying a distortion and knotting of the stent for the branch vessel.

62. 发明申请

US20200330215A1 Covered Stent 审中-公开
公开(公告)号：US20200330215A1
公开(公告)日：2020-10-22
申请号：US16957871
申请日：2018-12-11
申请人： Lifetech Scientific (Shenzhen) Co., Ltd.
发明人： Benhao Xiao , Caiping Liu , Da Li
IPC分类号： A61F2/07
摘要： 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.

63. 发明授权

US10799612B2 Implanted device 有权
公开(公告)号：US10799612B2
公开(公告)日：2020-10-13
申请号：US16068122
申请日：2016-06-27
申请人： Lifetech Scientific (Shenzhen) Co., Ltd.
发明人： Deyuan Zhang , Liping Chen , Haiping Qi , Hongtao Sun , Jun Hu , Wenjiao Lin
IPC分类号： A61L27/04 , A61L31/14 , A61F2/82 , C22C18/00 , A61F2/02 , C22C1/02 , A61L27/00 , C22F1/16 , A61B17/68 , A61K6/84 , A61P37/08 , A61P29/00 , A61K45/06 , A61L27/42 , A61L27/58 , A61L31/02 , C07F3/06 , A61L31/00
摘要： Disclosed is an implanted device, comprising a device base body and an active drug, wherein the device base body is pure zinc and/or a zinc alloy, the zinc content in the device base body is 0.1-100%, and the active drug comprises anti-allergic drugs. After the implantation of the implanted device into the human body, the surrounding tissues of the implant would not have a clear hypersensitive reaction due to the presence of the anti-allergic drugs, and the implanted device can be used to be implanted into the body for supporting organ chambers, to fill the hollow chambers of the organs and tissues or as orthopaedic implants etc.

64. 发明授权

US10786599B2 Implantable medical instrument preform, implantable medical device and preparation method thereof 有权
公开(公告)号：US10786599B2
公开(公告)日：2020-09-29
申请号：US15579336
申请日：2016-05-26
申请人： Lifetech Scientific (Shenzhen) Co., Ltd.
发明人： Zuqiang Qi , Xiaole Jia , Zhou Chen
IPC分类号： A61L27/34 , A61L27/04 , A61L27/50 , A61F2/01 , A61L27/42 , A61M31/00
摘要： Provided are an implanted medical device (1) and preparation method thereof, and an implanted medical device preform for preparing the implanted medical device (1). The implanted medical device (1) comprises a metal basal body (21) and a polymer film layer (22) covering the surface of the metal basal body (21) and preventing endothelium growth and covering, wherein at least a part of the surface of the metal basal body (21) is provided with a surface-modified layer (211) which contains doped ions, and the metal basal body (21) is connected to the polymer film layer (22) by the doped ions. Since the metal basal body (21) may be bonded to the polymer film layer (22) by the doped ions, the polymer film layer (22) is unlikely to separate during delivery, therefore effectively preventing endothelium growth and covering in vivo.

65. 发明申请

US20200289128A1 LEFT ATRIAL APPENDAGE OCCLUDER 审中-公开
公开(公告)号：US20200289128A1
公开(公告)日：2020-09-17
申请号：US16889926
申请日：2020-06-02
申请人： LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD
发明人： Anning Li , Yixian Lin
IPC分类号： A61B17/12
摘要： 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.

66. 发明授权

US10751445B2 Iron-based absorbable and implantable medical device and manufacturing method thereof 有权
公开(公告)号：US10751445B2
公开(公告)日：2020-08-25
申请号：US15737873
申请日：2016-06-01
申请人： Lifetech Scientific (Shenzhen) Co., Ltd.
发明人： Li Qin , Deyuan Zhang , Wenjiao Lin , Haiping Qi , Ziqiang Liu
IPC分类号： A61L27/04 , A61L31/16 , A61L31/14 , A61L31/12 , A61L27/54 , A61L27/58
摘要： Provided are an iron-based absorbable and implantable medical device and manufacturing method thereof. The iron-based absorbable and implantable medical device (1) comprises a substrate (11), a degradable polymer layer (12), and an anionic surfactant layer (13) located between the substrate (11) and the degradable polymer layer (12). The anionic surfactant, by using the hydrophobicity thereof, can form a hydrophobic barrier layer in a solution to isolate a surface of the iron-based substrate (11) from a body fluid environment, thereby avoiding direct contact with an acidic environment resulting from degradation of the degradable polymer layer (12) at the initial and early stages of implantation, thus preventing severe local corrosion of the iron-based substrate (11).

67. 发明授权

US10709454B2 Left atrial appendage occluder 有权
公开(公告)号：US10709454B2
公开(公告)日：2020-07-14
申请号：US15035824
申请日：2014-11-07
申请人： Lifetech Scientific (Shenzhen) Co., Ltd.
发明人： Anning Li , Yixian Lin
IPC分类号： A61B17/12
摘要： 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.

68. 发明授权

US10632232B2 Degradable iron-base alloy support 有权
公开(公告)号：US10632232B2
公开(公告)日：2020-04-28
申请号：US15534406
申请日：2015-12-02
申请人： Lifetech Scientific (Shenzhen) Co., Ltd.
发明人： Liping Chen , Hongtao Sun , Deyuan Zhang
IPC分类号： A61L31/02 , A61L31/10 , A61L31/16 , A61L31/04 , A61L31/06
CPC分类号： A61L31/022 , A61L31/02 , A61L31/041 , A61L31/043 , A61L31/06 , A61L31/10 , A61L31/16
摘要： A degradable iron-based alloy stent comprises an iron-based alloy substrate and a degradable polymer in contact with the surface of the substrate. The weight-average molecular weight of the degradable polymer is in the range of [1, 100]*104, and the polydispersity index of the degradable polymer is in the range of (1.0, 50]. The degradable polymer is selected from a degradable polyamino acid that can generate an acidic amino acid after degradation; or a mixture of the degradable polyamino acid and a degradable polyester, or a copolymer of monomers of the two; or a mixture of the degradable polyamino acid and a degradable polymer that does not generate acidic products after degradation, or a copolymer of the monomers of the two; or a mixture of the degradable polyamino acid, the degradable polyester and the degradable polymer that does not generate acidic products after degradation, or a copolymer of monomers of the three, or a mixture of a copolymer of monomers of any two of the three with the remaining one. The numerical ranges are in conformity with mathematical knowledge, i.e. [a, b] means being greater than or equal to a and being less than or equal to b; (a, b] means being greater than a and less than or equal to b; [a, b) means being greater than or equal to a, less than b, a redundant description will not be provided for the similarity text below.

69. 发明授权

US10624768B2 Luminal stent 有权
公开(公告)号：US10624768B2
公开(公告)日：2020-04-21
申请号：US16067362
申请日：2016-12-23
申请人： LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD.
发明人： Benhao Xiao , Deyuan Zhang , Chang Shu , Yifei Wang
IPC分类号： A61F2/07 , A61F2/852 , A61F2/86 , A61F2/06 , A61F2/848 , A61F2/94
CPC分类号： A61F2/852 , A61F2/07 , A61F2/86 , A61F2/848 , A61F2/94 , A61F2002/061 , A61F2002/077 , A61F2002/8486 , A61F2210/0076 , A61F2220/005 , A61F2220/0025 , A61F2220/0058 , A61F2220/0075 , A61F2230/0067 , A61F2250/0003 , A61F2250/0018 , A61F2250/0039 , A61F2250/0063 , A61F2250/0069
摘要： A luminal stent includes a first tubular body and a second tubular body sleeved on the first tubular body, and at least one end of the second tubular body is sealingly connected to an outer surface of the first tubular body. In a radial support section of the luminal stent, the first tubular body includes at least one first radial support structure arranged in a circumferential direction thereof, and the second tubular body includes at least one second radial support structure arranged in a circumferential direction thereof and a coating film covering the second radial support structure. The second radial support structure has greater radial deformability than the first radial support structure. After implantation, the luminal stent can form a semi-closed gap between the first tubular body and the second tubular body or between the second tubular body and a lumen wall.

70. 发明授权

US10543296B2 Absorbable iron-based alloy medical instrument implant and manufacturing method 有权
公开(公告)号：US10543296B2
公开(公告)日：2020-01-28
申请号：US15767610
申请日：2016-06-07
申请人： Lifetech Scientific (Shenzhen) Co., Ltd.
发明人： Haiping Qi , Ziqiang Liu , Li Qin , Deyuan Zhang , Wenjiao Lin
IPC分类号： A61L27/04 , A61L27/54 , A61L27/58 , A61L27/18 , A61L27/40 , A61L31/12
摘要： Absorbable iron-based alloy implanted medical device and manufacturing method thereof. The iron-based alloy implanted medical device comprises an iron-based alloy substrate (11), a degradable polymer layer (13) disposed on a surface of the iron-based alloy substrate (11), and a tannic acid chemical conversion film (12) disposed on a surface of the iron-based alloy substrate (11). After the medical device is implanted into a body, the tannic acid chemical conversion film (12) is configured to protect the iron-based alloy substrate (11) coated thereby from being in contact with a body fluid, thereby ensuring that the device meets a clinical mechanical property requirement in the early stage of implantation. Furthermore, the iron-based alloy implanted medical device has a decreased size, and produces a decreased amount of a corrosive product after being implanted, facilitating faster absorption or elimination of the corrosive product.

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