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公开(公告)号：US20240081829A1
公开(公告)日：2024-03-14
申请号：US18509894
申请日：2023-11-15
Applicant: MicroVention, Inc.
Inventor： Claudio Plaza , Scott Hemmelgarn , Eileen Charlton , Todd Hewitt , Philippe Marchand , Daniel Welsh , William R. Patterson , Son Pham
IPC: A61B17/12
CPC classification number: A61B17/12109 , A61B17/12113 , A61B17/12172 , A61B2017/12068 , A61B2017/12072 , A61B2017/12077
Abstract: A system for delivering an implant device to a vascular site in a patient a delivery pusher apparatus, an implant device detachably connected to the delivery pusher apparatus by a tether having a distal end connected to a proximal end of the implant device, wherein the tether is substantially non-tensioned when connecting the implant device to the delivery pusher, and an electrical heating element configured coaxially around at least a portion of the tether, wherein heat generated by the heating element severs the tether at a point near the proximal end of the implant device.
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公开(公告)号：US20220257260A1
公开(公告)日：2022-08-18
申请号：US17550085
申请日：2021-12-14
Applicant: MICROVENTION, INC.
Inventor： Todd Hewitt , Joseph Emery , Hung Tran , John Vu , Karishma Desai , Parker Milhous
IPC: A61B17/12
Abstract: Devices and methods for treatment of a patient's vasculature are described. Embodiments may include an implant having multiple mesh layers. A first and second layer of the implant may be formed by folding over a single mesh and the third layer may be formed from a different mesh. The first, second, and third layers may be either a stasis or a structural layer and may be arranged in different orders. Embodiments may also include structures to assist in the expansion of the device. These structures may include an expandable loop or reinforcing finger extensions. Embodiments may also include a corrugation or ridge around a middle section of the implant to assist in deployment.
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公开(公告)号：US20250082334A1
公开(公告)日：2025-03-13
申请号：US18805990
申请日：2024-08-15
Applicant: MICROVENTION, INC.
Inventor： Hussain S. Rangwala , William R. Patterson , Todd Hewitt
IPC: A61B17/12
Abstract: Devices and methods for treatment of a patient's vasculature are described. Embodiments may include a permeable implant having a radially constrained state configured for delivery within a catheter lumen, an expanded state, and a plurality of elongate filaments that are woven together. The permeable implant may include a stiffer proximal portion that is configured to sit at the neck of an aneurysm. The stiffer proximal portion may include coils, stiffening elements, or reinforcement elements disposed about or associated with the filaments or woven together with the filaments.
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公开(公告)号：US12226102B2
公开(公告)日：2025-02-18
申请号：US18144435
申请日：2023-05-08
Applicant: MICROVENTION, INC.
Inventor： Todd Hewitt , Brian E. Merritt , William R. Patterson , James M. Thompson , Claudio Plaza , Hung P. Tran
Abstract: Devices for treating a cerebral aneurysm may include proximal and distal self-expanding resilient permeable shells each including a plurality of elongate resilient filaments having a braided structure. The distal permeable shell may include a first plurality of filaments gathered at least at the proximal end thereof. The proximal permeable shell may include a second plurality of filaments are gathered at least at the proximal end thereof. The expanded state of the distal permeable shell may have a convex shape at the distal end of the distal permeable shell and the expanded state of the proximal permeable shell may have a generally convex shape at the proximal end of the proximal permeable shell. The expanded states of the distal and proximal permeable shells may also define a toroidal cavity through which an elongate support member extends.
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公开(公告)号：US11849955B2
公开(公告)日：2023-12-26
申请号：US17158977
申请日：2021-01-26
Applicant: MicroVention, Inc.
Inventor： Claudio Plaza , Scott Hemmelgarn , Eileen Charlton , Todd Hewitt , Philippe Marchand , Daniel Welsh , William R. Patterson , Son Pham
IPC: A61B17/12
CPC classification number: A61B17/12109 , A61B17/12113 , A61B17/12172 , A61B2017/12068 , A61B2017/12072 , A61B2017/12077
Abstract: A system for delivering an implant device to a vascular site in a patient a delivery pusher apparatus, an implant device detachably connected to the delivery pusher apparatus by a tether having a distal end connected to a proximal end of the implant device, wherein the tether is substantially non-tensioned when connecting the implant device to the delivery pusher, and an electrical heating element configured coaxially around at least a portion of the tether, wherein heat generated by the heating element severs the tether at a point near the proximal end of the implant device.
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Patent Agency Ranking
公开(公告)号：US20230363763A1
公开(公告)日：2023-11-16
申请号：US18221559
申请日：2023-07-13
Applicant: MICROVENTION, INC.
Inventor： John Vu , Nathan Luu , Todd Hewitt , Hung P. Tran
CPC classification number: A61B17/12172 , A61B17/12113 , A61B2017/1205 , A61B2090/3966
Abstract: Devices and methods for treatment of a patient's vasculature are described. Embodiments may include a first permeable shell and a second permeable shell, where the second permeable shell sits within an interior cavity of the first permeable shell. The first and second permeable shells may each be made from a plurality of elongate filaments that are woven together to form a mesh. The mesh of the first permeable shell may have a larger mesh density and be softer than the mesh of the second permeable shell.
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公开(公告)号：US12082819B2
公开(公告)日：2024-09-10
申请号：US18092985
申请日：2023-01-04
Applicant: MICROVENTION, INC.
Inventor： Hussain S. Rangwala , William R. Patterson , Todd Hewitt
IPC: A61B17/12
CPC classification number: A61B17/12113 , A61B17/12031 , A61B17/12036 , A61B17/12145
Abstract: Devices and methods for treatment of a patient's vasculature are described. Embodiments may include a permeable implant having a radially constrained state configured for delivery within a catheter lumen, an expanded state, and a plurality of elongate filaments that are woven together. The permeable implant may include a stiffer proximal portion that is configured to sit at the neck of an aneurysm. The stiffer proximal portion may include coils, stiffening elements, or reinforcement elements disposed about or associated with the filaments or woven together with the filaments.
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公开(公告)号：US12023034B2
公开(公告)日：2024-07-02
申请号：US17198915
申请日：2021-03-11
Applicant: MICROVENTION, INC.
Inventor： William R. Patterson , Daniel Hoit , Hussain S. Rangwala , Todd Hewitt , Parker Milhous , Hung Tran
IPC: A61B17/12
CPC classification number: A61B17/12118 , A61B17/12168 , A61B2017/12054
Abstract: Devices and methods for treatment of a patient's vasculature are described. Embodiments may include a permeable implant connected to an expandable stent through a plurality of wires. The permeable shell is configured for placement in an aneurysm and the expandable stent is configured for placement in a parent vessel proximal, near, or adjacent the aneurysm.
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公开(公告)号：US20230270441A1
公开(公告)日：2023-08-31
申请号：US18144435
申请日：2023-05-08
Applicant: MICROVENTION, INC.
Inventor： Todd Hewitt , Brian E. Merritt , William R. Patterson , James M. Thompson , Claudio Plaza , Hung P. Tran
IPC: A61B17/12
CPC classification number: A61B17/12113 , A61B17/12172 , A61B17/12177 , A61B17/12031 , A61B17/1214 , A61B17/12145 , A61B17/1215 , A61F2310/00149 , A61B2017/00526
Abstract: Methods and devices for treating a cerebral aneurysm are described. The device may include proximal and distal self-expanding resilient permeable shells each including a plurality of elongate resilient filaments having a braided structure. The distal permeable shell may include a first plurality of filaments gathered at least at the proximal end thereof. The proximal permeable shell may include a second plurality of filaments are gathered at least at the proximal end thereof. The expanded state of the distal permeable shell may have a convex shape at the distal end of the distal permeable shell and the expanded state of the proximal permeable shell may have a generally convex shape at the proximal end of the proximal permeable shell. The expanded states of the distal and proximal permeable shells may also define a toroidal cavity through which an elongate support member extends.
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公开(公告)号：US11723667B2
公开(公告)日：2023-08-15
申请号：US17028037
申请日：2020-09-22
Applicant: MICROVENTION, INC.
Inventor： Todd Hewitt , Brian E. Merritt , William R. Patterson
CPC classification number: A61B17/12113 , A61B17/12013 , A61B17/12031 , A61B17/12118 , A61B17/12172 , A61B17/12177 , A61B2017/00539 , A61B2017/00778 , A61B2017/00867 , A61B2017/1205 , A61B2017/1209 , A61B2017/12068 , A61B2017/12095 , A61B2090/3966
Abstract: Devices and methods for treatment of a patient's vasculature may include a resilient self-expanding permeable implant having a radially constrained elongated state configured for delivery within a catheter lumen and an expanded state with a longitudinally shortened configuration, and a plurality of elongate filaments which are woven together. Each of the plurality of elongate filaments may have a diameter between about 0.0005 and about 0.005 inches. The implant includes at least some filaments consisting of nitinol and at least some composite filaments that are drawn filled tube wires comprising an external nitinol tube and a highly radiopaque material concentrically disposed within the external tube. The implant has at least about 40% composite filaments relative to a total number of filaments, and wherein a total number of filaments is about 10 to about 300.
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