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公开(公告)号：US20230338048A9
公开(公告)日：2023-10-26
申请号：US18056192
申请日：2022-11-16
Applicant: Covidien LP
Inventor： Earl Howard Slee , Thomas Wilder, III , Thomas McCarthy , Mark Philip Ashby , Sanjay Shrivastava
IPC: A61B17/221 , A61F2/90 , A61B17/22
CPC classification number: A61B17/221 , A61F2/90 , A61B17/22 , A61B2017/22034 , A61B2017/2215 , A61F2/91
Abstract: Methods for restoring blood flow in occluded blood vessels using an apparatus having a self-expandable distal segment that is pre-formed to assume a superimposed structure in an unconstrained condition but can be made to take on a volume-reduced form making it possible to introduce it with a microcatheter and a push wire arranged at the proximal end, with the distal segment in its superimposed structure assuming the form of a longitudinally open tube and having a mesh structure of interconnected strings or filaments or struts. In a preferred embodiment, the distal segment has a tapering structure at its proximal end where the strings or filaments or struts converge at a connection point.
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公开(公告)号：US11690741B2
公开(公告)日：2023-07-04
申请号：US16948385
申请日：2020-09-16
Applicant: Covidien LP
Inventor： Anh Cam , Michael Losordo , Jianlu Ma , Luong Nguyen , Sanjay Shrivastava , John Wainwright , Xiaoling Zhao
CPC classification number: A61F2/90 , A61B17/1214 , A61B17/12118 , A61B17/12145 , A61B17/12168 , A61B17/12172 , A61F2/95 , A61B2017/00867 , A61B2017/1209 , A61F2/966 , A61F2002/823 , A61F2220/005 , A61F2220/0058 , A61F2230/0034 , A61F2230/0054 , A61F2230/0069 , A61F2230/0093
Abstract: Vascular remodeling devices can include a proximal section, an intermediate section, and a distal section. During deployment, the proximal section can expand from a compressed delivery state to an expanded state and anchor the device in an afferent vessel of a bifurcation. The distal section expands from the compressed delivery state to an expanded state that may be substantially planar, approximately semi-spherical, umbrella shaped, or reverse umbrella shaped. The distal section is positioned in a bifurcation junction across the neck of an aneurysm or within an aneurysm. The intermediate section allows perfusion to efferent vessels. Before or after the device is in position, embolic material may be used to treat the aneurysm. The distal section can act as a scaffolding to prevent herniation of the embolic material. The device can be used for clot retrieval with integral distal embolic protection.
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公开(公告)号：US20160100849A1
公开(公告)日：2016-04-14
申请号：US14885826
申请日：2015-10-16
Applicant: Covidien LP
Inventor： Earl Howard Slee , Thomas Wilder , Thomas McCarthy , Mark Philip Ashby , Sanjay Shrivastava
IPC: A61B17/221 , A61F2/90
Abstract: Methods for restoring blood flow in occluded blood vessels using an apparatus having a self-expandable distal segment that is pre-formed to assume a superimposed structure in an unconstrained condition but can be made to take on a volume-reduced form making it possible to introduce it with a microcatheter and a push wire arranged at the proximal end, with the distal segment in its superimposed structure assuming the form of a longitudinally open tube and having a mesh structure of interconnected strings or filaments or struts. In a preferred embodiment, the distal segment has a tapering structure at its proximal end where the strings or filaments or struts converge at a connection point.
Abstract translation: 使用具有预扩张的远端段的装置来恢复闭塞血管中的血液流动的方法，以在无约束条件下呈现叠加结构，但是可以进行体积减小的形式，使得可以引入 其具有布置在近端的微导管和推动线，远端段以其叠加结构呈现纵向开放管的形式，并且具有互连的线或丝或支柱的网状结构。 在优选实施例中，远侧段在其近端处具有锥形结构，其中弦或细丝或支柱在连接点处会聚。
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公开(公告)号：US11529156B2
公开(公告)日：2022-12-20
申请号：US16531920
申请日：2019-08-05
Applicant: Covidien LP
Inventor： Earl Howard Slee , Thomas Wilder, III , Thomas McCarthy , Mark Philip Ashby , Sanjay Shrivastava
IPC: A61B17/221 , A61F2/90 , A61B17/22 , A61F2/91 , A61F2/92
Abstract: Methods for restoring blood flow in occluded blood vessels using an apparatus having a self-expandable distal segment that is pre-formed to assume a superimposed structure in an unconstrained condition but can be made to take on a volume-reduced form making it possible to introduce it with a microcatheter and a push wire arranged at the proximal end, with the distal segment in its superimposed structure assuming the form of a longitudinally open tube and having a mesh structure of interconnected strings or filaments or struts. In a preferred embodiment, the distal segment has a tapering structure at its proximal end where the strings or filaments or struts converge at a connection point.
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公开(公告)号：US20160113786A1
公开(公告)日：2016-04-28
申请号：US14932330
申请日：2015-11-04
Applicant: COVIDIEN LP
Inventor： Elad Israel Levy , Earl Slee , Sanjay Shrivastava , Victoria Schuman , Andy Huynh , Wenfeng Lu
CPC classification number: A61F2/86 , A61B17/12022 , A61B17/12113 , A61B17/12118 , A61B17/1214 , A61B17/12172 , A61B2017/12054 , A61B2017/12063 , A61F2/954 , A61F2002/065 , A61F2002/823 , A61F2230/005 , A61F2230/0071
Abstract: A generally spherical vascular remodeling device is permanently positionable at a junction of afferent and efferent vessels of a bifurcation having an aneurysm. After positioning the device at the junction to substantially conform the device to the shape of the junction, the device acts as a scaffolding to inhibit herniation of objects out of the aneurysm and the device permits perfusion to the efferent vessels. Positioning the device may include deployment and mechanical or electrolytic release from a catheter. Embolic material may be inserted in the aneurysm before or after positioning the device. The device may have a first end, a second end substantially opposite to the first end, and a plurality of filaments extending between and coupled at the first end and the second end. Such devices may be football shaped, pumpkin shaped, or twisted. The device may include a plurality of loops forming a generally spherical shape.
Abstract translation: 通常为球形的血管重建装置可永久定位在具有动脉瘤的分叉的传入和传出血管的交界处。 在将装置定位在接合处以将装置基本上符合接合部的形状之后，该装置用作支架以抑制物体从动脉瘤中的突出，并且该装置允许灌注到传出血管。 定位装置可以包括从导管部署和机械或电解释放。 栓塞材料可以在设备定位之前或之后插入动脉瘤中。 该装置可以具有第一端，与第一端基本相对的第二端，以及在第一端和第二端处延伸并在其之间耦合的多根细丝。 这种装置可以是足球形，南瓜形或扭曲的。 该装置可以包括形成大致球形的多个环。
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Patent Agency Ranking
公开(公告)号：US10806611B2
公开(公告)日：2020-10-20
申请号：US15478149
申请日：2017-04-03
Applicant: Covidien LP
Inventor： Anh Cam , Michael Losordo , Jianlu Ma , Luong Nguyen , Sanjay Shrivastava , John Wainwright , Xiaoling Zhao
Abstract: Vascular remodeling devices can include a proximal section, an intermediate section, and a distal section. During deployment, the proximal section can expand from a compressed delivery state to an expanded state and anchor the device in an afferent vessel of a bifurcation. The distal section expands from the compressed delivery state to an expanded state that may be substantially planar, approximately semi-spherical, umbrella shaped, or reverse umbrella shaped. The distal section is positioned in a bifurcation junction across the neck of an aneurysm or within an aneurysm. The intermediate section allows perfusion to efferent vessels. Before or after the device is in position, embolic material may be used to treat the aneurysm. The distal section can act as a scaffolding to prevent herniation of the embolic material. The device can be used for clot retrieval with integral distal embolic protection.
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公开(公告)号：US20200000613A1
公开(公告)日：2020-01-02
申请号：US16566515
申请日：2019-09-10
Applicant: Covidien LP
Inventor： Sanjay Shrivastava , Anh Cam
Abstract: A medical device for blood flow restoration and/or for use as an implantable member m a human vessel includes a self-expanding member, a guidewire, and a connection mechanism. The self-expanding member includes a plurality of cells and filaments having specific ranges of thicknesses, widths, and heights. The self-expanding member can take on a volume-reduced coiled form with overlapped edges, and can generate optimal radial forces against a vessel wall and/or thrombus when deployed and expanded.
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公开(公告)号：US20170231789A1
公开(公告)日：2017-08-17
申请号：US15478149
申请日：2017-04-03
Applicant: Covidien LP
Inventor： Anh Cam , Michael Losordo , Jianlu Ma , Luong Nguyen , Sanjay Shrivastava , John Wainwright , Xiaoling Zhao
Abstract: Vascular remodeling devices can include a proximal section, an intermediate section, and a distal section. During deployment, the proximal section can expand from a compressed delivery state to an expanded state and anchor the device in an afferent vessel of a bifurcation. The distal section expands from the compressed delivery state to an expanded state that may be substantially planar, approximately semi-spherical, umbrella shaped, or reverse umbrella shaped. The distal section is positioned in a bifurcation junction across the neck of an aneurysm or within an aneurysm. The intermediate section allows perfusion to efferent vessels. Before or after the device is in position, embolic material may be used to treat the aneurysm. The distal section can act as a scaffolding to prevent herniation of the embolic material. The device can be used for clot retrieval with integral distal embolic protection.
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公开(公告)号：US20210000624A1
公开(公告)日：2021-01-07
申请号：US16948385
申请日：2020-09-16
Applicant: Covidien LP
Inventor： Anh Cam , Michael Losordo , Jianlu Ma , Luong Nguyen , Sanjay Shrivastava , John Wainwright , Xiaoling Zhao
Abstract: Vascular remodeling devices can include a proximal section, an intermediate section, and a distal section. During deployment, the proximal section can expand from a compressed delivery state to an expanded state and anchor the device in an afferent vessel of a bifurcation. The distal section expands from the compressed delivery state to an expanded state that may be substantially planar, approximately semi-spherical, umbrella shaped, or reverse umbrella shaped. The distal section is positioned in a bifurcation junction across the neck of an aneurysm or within an aneurysm. The intermediate section allows perfusion to efferent vessels. Before or after the device is in position, embolic material may be used to treat the aneurysm. The distal section can act as a scaffolding to prevent herniation of the embolic material. The device can be used for clot retrieval with integral distal embolic protection.
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公开(公告)号：US10456151B2
公开(公告)日：2019-10-29
申请号：US14885826
申请日：2015-10-16
Applicant: Covidien LP
Inventor： Earl Howard Slee , Thomas Wilder , Thomas McCarthy , Mark Philip Ashby , Sanjay Shrivastava
IPC: A61B17/221 , A61F2/90 , A61B17/22 , A61F2/91 , A61F2/92
Abstract: Methods for restoring blood flow in occluded blood vessels using an apparatus having a self-expandable distal segment that is pre-formed to assume a superimposed structure in an unconstrained condition but can be made to take on a volume-reduced form making it possible to introduce it with a microcatheter and a push wire arranged at the proximal end, with the distal segment in its superimposed structure assuming the form of a longitudinally open tube and having a mesh structure of interconnected strings or filaments or struts. In a preferred embodiment, the distal segment has a tapering structure at its proximal end where the strings or filaments or struts converge at a connection point.
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