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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：US20230285028A1
公开(公告)日：2023-09-14
申请号：US18197814
申请日：2023-05-16
Applicant: MICROVENTION, INC.
Inventor： Claudio Plaza , James M. Thompson , Hung P. Tran
CPC classification number: A61B17/12118 , A61B17/12109 , A61B17/12172 , A61F2/90 , A61F2002/823
Abstract: Systems for completely or partially excluding an aneurysm from circulation of blood are described. In one embodiment, the system includes a microcatheter, a fully or partially self-expandable stent, and a delivery device configured to be deliverable together with the stent through a lumen of the microcatheter. The delivery device includes an elongate support member coupled to a self-expandable portion, which includes a tubular mesh structure having a compressed state and an expanded state. A distal portion of the self-expandable portion extends proximally from a distal end of the self-expandable portion and has a length having an expanded outer diameter that is equal to or greater than the self-expanded inner diameter of the stent. In some embodiments, the proximal end of the self-expandable portion is substantially non-expanded where it is coupled to the elongate support member.
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公开(公告)号：US11885053B2
公开(公告)日：2024-01-30
申请号：US17830959
申请日：2022-06-02
Applicant: MICROVENTION, INC.
Inventor： James M. Thompson , Brian J. Cox , Robert Rosenbluth , Philippe Marchand , John Nolting , Darrin J. Kent , Tan Q. Dinh , Hung P. Tran , James A. Milburn
Abstract: Methods of braiding using a braiding mechanism are described. The braiding mechanism includes a disc defining a plane and a circumferential edge, a mandrel extending from a center of the disc that is adapted to hold a plurality of filaments extending radially from the mandrel toward the circumferential edge of the disc, a plurality of catch mechanisms positioned circumferentially around the edge of the disc, a plurality of actuators adapted to move the plurality of catch mechanisms in a substantially radial direction relative to the circumferential edge of the disc, and a plurality of filaments extending radially from the mandrel towards circumferential edge of the disc. A middle portion of each filament of the plurality of filaments contacts an end of the mandrel.
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公开(公告)号：US11690629B2
公开(公告)日：2023-07-04
申请号：US17176744
申请日：2021-02-16
Applicant: MICROVENTION, INC.
Inventor： Claudio Plaza , James M. Thompson , Hung P. Tran
CPC classification number: A61B17/12118 , A61B17/12109 , A61B17/12172 , A61F2/90 , A61B2017/00836 , A61B2017/1205 , A61F2002/823 , A61F2210/0009 , A61F2310/00029
Abstract: Systems for treating an aneurysm in a cerebral vessel and methods of use are described. In one embodiment, the system includes an elongate tubular member having a lumen, an expandable stent, and a delivery device. The expandable stent has a constrained state that is configured for delivery through the lumen of the elongate tubular member, and an expanded state configured for placement within the cerebral vessel adjacent the aneurysm. The delivery device includes an elongate member and a self-expandable portion. The proximal end of the self-expandable portion is coupled to the elongate member at or near the distal end of the elongate member. The self-expandable portion of the delivery device includes a tubular mesh structure having a constrained state and an expanded state. The stent is engaged (e.g., mechanical, frictional, or intermeshing) with the self-expandable portion of the delivery device.
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公开(公告)号：US20240117538A1
公开(公告)日：2024-04-11
申请号：US18390594
申请日：2023-12-20
Applicant: MICROVENTION, INC.
Inventor： James M. Thompson , Brian J. Cox , Robert Rosenbluth , Philippe Marchand , John Nolting , Darrin J. Kent , Tan Q. Dinh , Hung P. Tran , James A. Milburn
Abstract: Methods of braiding using a braiding mechanism are described. The braiding mechanism includes a disc defining a plane and a circumferential edge, a mandrel extending from a center of the disc that is adapted to hold a plurality of filaments extending radially from the mandrel toward the circumferential edge of the disc, a plurality of catch mechanisms positioned circumferentially around the edge of the disc, a plurality of actuators adapted to move the plurality of catch mechanisms in a substantially radial direction relative to the circumferential edge of the disc, and a plurality of filaments extending radially from the mandrel towards circumferential edge of the disc. A middle portion of each filament of the plurality of filaments contacts an end of the mandrel.
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Patent Agency Ranking
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：US20250143709A1
公开(公告)日：2025-05-08
申请号：US19016403
申请日：2025-01-10
Applicant: MICROVENTION, INC.
Inventor： Todd Hewitt , Brian E. Merritt , William R. Patterson , James M. Thompson , Claudio Plaza , Hung P. Tran
Abstract: Methods for treating a cerebral aneurysm may include advancing a resilient self-expanding implant coupled to a pusher within a microcatheter to the cerebral aneurysm within the patient's vasculature. The implant may include a permeable shell, a coil extending from a distal end of the permeable shell, and a bioactive agent. The implant may be deployed within the cerebral aneurysm, where the coil and the permeable shell each assume an expanded deployed configuration. In an expanded deployed configuration, the coil has at least one loop having a secondary diameter and the permeable shell has an axially shortened configuration relative to a radially constrained elongated configuration.
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公开(公告)号：US20240398416A1
公开(公告)日：2024-12-05
申请号：US18804297
申请日：2024-08-14
Applicant: MICROVENTION, INC.
Inventor： Todd Hewitt , Brian Merritt , William R. Patterson , James M. Thompson , Claudio Plaza , Hung P. Tran , Richard L. Quick
Abstract: Devices and methods for treatment of a patient's vasculature are described. The device includes a self-expanding permeable implant having a radially constrained state and an expanded state with a shortened configuration, a plurality of elongate filaments which are woven together in a tubular braid, and a fixation element. The fixation element may be a hook, barb, protrusion, bioadhesive, or pore. The implant includes at least some nitinol filaments and at least some composite filaments. Methods of treating a cerebral aneurysm are also described. The methods include advancing a permeable implant to the aneurysm, deploying the implant, and delivering embolic material into the cerebral aneurysm adjacent a portion of the permeable implant that spans the neck.
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公开(公告)号：US12096940B2
公开(公告)日：2024-09-24
申请号：US17176634
申请日：2021-02-16
Applicant: MICROVENTION, INC.
Inventor： Todd Hewitt , Brian Merritt , William R. Patterson , James M. Thompson , Claudio Plaza , Hung P. Tran , Richard L. Quick
CPC classification number: A61B17/12113 , A61B17/12013 , A61B17/12031 , A61B17/12118 , A61B17/12145 , A61B17/12172 , A61B17/12177 , A61B17/12186 , A61B2017/00292 , A61B2017/00526 , A61B2017/00539 , A61B2017/00778 , A61B2017/00862 , A61B2017/00867 , A61B2017/1205 , A61B2017/12068 , A61B2017/1209 , A61B2017/12095 , A61B2090/3966
Abstract: Devices and methods for treatment of a patient's vasculature are described. The device includes a self-expanding resilient permeable shell having a radially constrained state and an expanded state with a globular, axially shortened configuration. The permeable shell may be a single layer of braided elongate filaments having first and second ends that are secured at the proximal end of the permeable shell. The devices may also include permeable shells made of woven braided mesh having a variable mesh density, i.e., the average size of pores in one region are a different than the average size of pores in another region. Methods of using the device to treat a cerebral aneurysm are also described. Methods of forming a tubular braid are also described. Methods of forming a tubular braid with variable braid densities are described. Methods of forming a tubular braid using a castellated mandrel are also described.
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公开(公告)号：US11678886B2
公开(公告)日：2023-06-20
申请号：US16373476
申请日：2019-04-02
Applicant: MICROVENTION, INC.
Inventor： Todd Hewitt , Brian E. Merritt , William R. Patterson , James M. Thompson , Claudio Plaza , Hung P. Tran
CPC classification number: A61B17/12113 , A61B17/1214 , A61B17/1215 , A61B17/12031 , A61B17/12145 , A61B17/12172 , A61B17/12177 , A61B2017/00526 , A61B2017/00867 , A61B2017/00893 , A61B2017/00898 , A61B2017/1205 , A61B2017/12068 , A61B2090/3966 , A61F2310/00149 , A61M2025/0042
Abstract: Methods and devices for treating a cerebral aneurysm utilize a device that includes a self-expanding resilient permeable shell made from elongate resilient filaments. At least some of the filaments have a distal region that extends beyond the distal end of the permeable shell and form an extension having a generally circular shape when expanded. The permeable shell has a radially constrained elongated state configured for delivery within a microcatheter and has an expanded state with a globular, axially shortened configuration. The permeable shell has a plurality of openings formed between the braided filaments. The distal regions of the plurality of filaments that form the extension may be braided, partially braided, or unraveled. Once deployed within the cerebral aneurysm, the extension may be positioned near a dome of the cerebral aneurysm.
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