公开(公告)号：US11045204B2

公开(公告)日：2021-06-29

申请号：US16178174

申请日：2018-11-01

Applicant: Covidien LP

Inventor： Anh Cam ,  Michael Louis Losordo ,  Jianlu Ma ,  Xiaoling Zhao

IPC: A61B17/12 ,  A61F2/95 ,  A61F2/90 ,  A61F2/915 ,  A61F2/07 ,  A61F2/86 ,  A61F2/844 ,  A61F2/954 ,  A61F2/966 ,  A61F2/82

Abstract: Described herein are flexible implantable devices or stents that can conform to the shape of vessels of the neurovasculature. In some embodiments, the devices can direct blood flow within a vessel away from an aneurysm or limit blood flow to the aneurysm. In some embodiments, a vascular remodeling device includes a first section and a protruding section. During deployment, the device expands from a compressed configuration to an expanded configuration. The first section anchors the device in an afferent vessel and/or in an efferent vessel of a bifurcation and the protruding section is positioned in the junction of the bifurcation having an aneurysm and across the neck of the aneurysm or at least partially within the aneurysm.

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

IPC: A61F2/90 ,  A61B17/12 ,  A61F2/95 ,  A61F2/82 ,  A61B17/00 ,  A61F2/966

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.

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

IPC: A61F2/90 ,  A61F2/86 ,  A61F2/95 ,  A61B17/221 ,  A61F2/844 ,  A61F2/92 ,  A61F2/962

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.

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

IPC: A61F2/90 ,  A61B17/12

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.

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

IPC: A61F2/90 ,  A61B17/12 ,  A61F2/95 ,  A61F2/82 ,  A61B17/00 ,  A61F2/966

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.

公开(公告)号：US10123804B2

公开(公告)日：2018-11-13

申请号：US15192150

申请日：2016-06-24

Applicant: COVIDIEN LP

Inventor： Anh Cam ,  Michael Losordo ,  Jianlu Ma ,  Xiaoling Zhao

IPC: A61B17/221 ,  A61B17/12 ,  A61F2/95 ,  A61F2/915 ,  A61F2/90 ,  A61F2/07 ,  A61F2/86 ,  A61F2/844 ,  A61F2/954 ,  A61F2/966 ,  A61F2/82

Abstract: Described herein are flexible implantable devices or stents that can conform to the shape of vessels of the neurovasculature. In some embodiments, the devices can direct blood flow within a vessel away from an aneurysm or limit blood flow to the aneurysm. In some embodiments, a vascular remodeling device includes a first section and a protruding section. During deployment, the device expands from a compressed configuration to an expanded configuration. The first section anchors the device in an afferent vessel and/or in an efferent vessel of a bifurcation and the protruding section is positioned in the junction of the bifurcation having an aneurysm and across the neck of the aneurysm or at least partially within the aneurysm.

公开(公告)号：US20170156744A1

公开(公告)日：2017-06-08

申请号：US15423048

申请日：2017-02-02

Applicant: Covidien LP

Inventor： SANJAY SHRIVASTAVA ,  Wenfeng Lu ,  Anh Cam

IPC: A61B17/221 ,  A61M25/00 ,  A61M39/06 ,  A61F2/01

CPC classification number: A61B17/221 ,  A61B17/22031 ,  A61B17/22032 ,  A61B2017/00287 ,  A61B2017/00557 ,  A61B2017/00871 ,  A61B2017/12059 ,  A61B2017/22034 ,  A61B2017/22062 ,  A61B2017/22067 ,  A61B2017/22084 ,  A61B2017/22085 ,  A61B2017/2215 ,  A61F2/01 ,  A61M25/0021 ,  A61M25/1002 ,  A61M39/06 ,  A61M2025/0042 ,  A61M2025/109 ,  A61M2039/062 ,  A61M2205/0283

Abstract: Catheters of the present disclosure include a catheter shaft and an expandable tip, which can retrieve materials slightly larger than an inner diameter of the catheter shaft. The tip may be expandable such that it can easily transform from a first size and shape to a second size and shape to aid in the retrieval of the materials (i.e., the thrombus, embolus, or foreign body). Catheter tips may be expanded by inflation, removal of a constraining member, or an input such as heat, light, or electrical energy.

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

IPC: A61F2/90 ,  A61B17/12 ,  A61F2/95

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.

公开(公告)号：US20190069900A1

公开(公告)日：2019-03-07

申请号：US16178174

申请日：2018-11-01

Applicant: Covidien LP

Inventor： Anh Cam ,  Michael Louis Losordo ,  Jianlu Ma ,  Xiaoling Zhao

IPC: A61B17/12 ,  A61F2/95 ,  A61F2/954 ,  A61F2/966 ,  A61F2/07 ,  A61F2/844 ,  A61F2/86 ,  A61F2/90 ,  A61F2/915 ,  A61F2/82

Abstract: Described herein are flexible implantable devices or stents that can conform to the shape of vessels of the neurovasculature. In some embodiments, the devices can direct blood flow within a vessel away from an aneurysm or limit blood flow to the aneurysm. In some embodiments, a vascular remodeling device includes a first section and a protruding section. During deployment, the device expands from a compressed configuration to an expanded configuration. The first section anchors the device in an afferent vessel and/or in an efferent vessel of a bifurcation and the protruding section is positioned in the junction of the bifurcation having an aneurysm and across the neck of the aneurysm or at least partially within the aneurysm.

公开(公告)号：US09610180B2

公开(公告)日：2017-04-04

申请号：US14578554

申请日：2014-12-22

Applicant: COVIDIEN LP

Inventor： Anh Cam ,  Michael Losordo ,  Jianlu Ma ,  Luong Nguyen ,  Sanjay Shrivastava ,  John Wainwright ,  Xiaoling Zhao

IPC: A61F2/06 ,  A61F2/90 ,  A61F2/95 ,  A61B17/12 ,  A61F2/82

CPC classification number: A61F2/90 ,  A61B17/12118 ,  A61B17/1214 ,  A61B17/12145 ,  A61B17/12168 ,  A61B17/12172 ,  A61B2017/00867 ,  A61B2017/1209 ,  A61F2/95 ,  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.