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公开(公告)号：US12256936B2
公开(公告)日：2025-03-25
申请号：US18324017
申请日：2023-05-25
Applicant: Covidien LP
Inventor： Junwei Li , John Wainwright , Gaurav Girdhar , Stephen Sosnowski
Abstract: Systems and methods for treating an aneurysm in accordance with embodiments of the present technology include intravascularly delivering an occlusive member to an aneurysm cavity and deforming a shape of the occlusive member via introduction of an embolic element to a space between the occlusive member and an inner surface of the aneurysm wall.
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公开(公告)号：US20230301660A1
公开(公告)日：2023-09-28
申请号：US18176088
申请日：2023-02-28
Applicant: Covidien LP
Inventor： Merdim Sonmez , Junwei Li , Madeleine Roseen , Mehdi Rashidi
IPC: A61B17/12
CPC classification number: A61B17/12113 , A61B17/1214 , A61B2017/12063
Abstract: Treatment of aneurysms can be improved by delivering an occlusive member (e.g., an expandable braid) to an aneurysm sac in conjunction with an embolic element (e.g., coils, embolic material). A treatment system for such treatment can include an electrolytically corrodible conduit having a proximal portion, a distal portion, and a detachment zone between the proximal portion and the distal portion. An occlusive member having a proximal hub is coupled to the conduit distal portion. The conduit has a lumen configured to pass an embolic element therethrough. An inner electrode assembly can be slidably disposed within the conduit lumen to facilitate electrolytic detachment of the occlusive member at the detachment zone.
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公开(公告)号：US20230294223A1
公开(公告)日：2023-09-21
申请号：US18324017
申请日：2023-05-25
Applicant: Covidien LP
Inventor： Junwei Li , John Wainwright , Gaurav Girdhar , Stephen Sosnowski
CPC classification number: B23P19/047 , A61B17/12172 , A61B17/12113 , A61B17/12186 , A61B17/1214 , A61B17/12031 , A61B17/12145 , A61B2017/00526
Abstract: Systems and methods for treating an aneurysm in accordance with embodiments of the present technology include intravascularly delivering an occlusive member to an aneurysm cavity and deforming a shape of the occlusive member via introduction of an embolic element to a space between the occlusive member and an inner surface of the aneurysm wall.
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4.发明公开公开(公告)号：US20230210540A1
公开(公告)日：2023-07-06
申请号：US18147994
申请日：2022-12-29
Applicant: Covidien LP
Inventor： Adin Douglas Martineau , Ali M. Hussain , John I. Muri , Junwei Li , Jared Akira Shimizu , Andyanhdzung Huynh , Robert A. Pecor , Aarya Cyril Mecwan
IPC: A61B17/12
CPC classification number: A61B17/12186 , A61B17/12113 , A61B2017/1205
Abstract: Systems, methods, and devices for treating vascular defects are disclosed herein. In some embodiments, a method of treating an aneurysm includes positioning a distal portion of an elongated member near or within an aneurysm. The method can include introducing an embolic composition into a lumen of the elongated member using an injector device coupled to a proximal portion of the elongated member. The injector device can pressurize the embolic composition to a pressure of at least 10,000 psi. The method can also include delivering the embolic composition into the aneurysm via the elongated member.
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公开(公告)号：US11498165B2
公开(公告)日：2022-11-15
申请号：US16949563
申请日：2020-11-03
Applicant: Covidien LP
Inventor： Gopan Patel , Mark Ashby , Kenneth Brown , Erik Skillrud , Junwei Li
Abstract: Treatment of aneurysms can be improved by delivering an occlusive member (e.g., an expandable braid) to an aneurysm sac in conjunction with an embolic element (e.g., coils, embolic material). A delivery system for such treatment can include an occlusive member configured to be positioned within an aneurysm sac and having a proximal hub. An elongate tubular member has an engagement member removably coupled to the proximal hub, for example via threaded engagement or an interference fit via one or more engagement members. A conduit extending within or adjacent to the elongated member is configured to receive an embolic element therethrough for delivery to the aneurysm sac.
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Patent Agency Ranking
公开(公告)号：US20220304696A2
公开(公告)日：2022-09-29
申请号：US16949568
申请日：2020-11-03
Applicant: Covidien LP
Inventor： Richard Rhee , Vincent Divino , Ashok Nageswaran , Junwei Li
IPC: A61B17/12
Abstract: Systems and methods for treating an aneurysm in accordance with embodiments of the present technology include intravascularly delivering an occlusive member to an aneurysm cavity via an elongated shaft and transforming a shape of the occlusive member within the cavity. The method may include introduction of an embolic element to a space between the occlusive member and an inner surface of the aneurysm wall. In some embodiments, the elongated shaft is detachably coupled to a distal portion of the occlusive member.
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公开(公告)号：US20200022827A1
公开(公告)日：2020-01-23
申请号：US16586639
申请日：2019-09-27
Applicant: Covidien LP
Inventor： Xiaodong Ma , Min-Shyan Sheu , Lincoln Eramo , John Wainwright , Junwei Li
IPC: A61F2/82 , A61L31/02 , A61L31/16 , A61F2/90 , A61L31/10 , A61F2/06 , A61L31/14 , A61L33/00 , A61L33/06
Abstract: Methods for forming an expandable tubular body having a plurality of braided filaments including a first filament including platinum or platinum alloy and a second filament including cobalt-chromium alloy. The methods include applying a first phosphorylcholine material directly on the platinum or platinum alloy of the first filament and applying a silane material on the second filament followed by a second phosphorylcholine material on the silane material on the second filament. The first and second phosphorylcholine materials each define a thickness of less than 100 nanometers.
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公开(公告)号：US10137012B2
公开(公告)日：2018-11-27
申请号：US15584077
申请日：2017-05-02
Applicant: Covidien LP
Inventor： Xiaodong Ma , Min-Shyan Sheu , Lincoln Eramo , John Wainwright, Jr. , Junwei Li
IPC: A61F2/82 , A61L31/00 , A61L31/02 , A61L31/10 , A61L31/16 , A61F2/90 , A61F2/06 , A61L31/14 , A61L33/00 , A61L33/06 , B05D1/18 , B05D3/14
Abstract: Methods for forming an expandable tubular body having a plurality of braided filaments including a first filament including platinum or platinum alloy and a second filament including cobalt-chromium alloy. The methods include applying a first phosphorylcholine material directly on the platinum or platinum alloy of the first filament and applying a silane material on the second filament followed by a second phosphorylcholine material on the silane material on the second filament. The first and second phosphorylcholine materials each define a thickness of less than 100 nanometers.
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公开(公告)号：US20240033281A1
公开(公告)日：2024-02-01
申请号：US18483809
申请日：2023-10-10
Applicant: Covidien LP
Inventor： Junwei Li , Gaurav Girdhar , John Wainwright , Yves Bayon , Ariana Pagani
CPC classification number: A61K31/722 , A61B17/12186 , A61B17/12113 , A61B17/12031 , A61L31/145 , A61L31/18 , A61L31/042 , A61M5/1452 , A61M25/10 , A61L2430/36 , A61L2400/06 , A61M2210/0687
Abstract: A method for treating an aneurysm in accordance with a particular embodiment of the present technology includes intravascularly delivering a mixture including a biopolymer (e.g., chitosan) and a chemical crosslinking agent (e.g., genipin) to an aneurysm. The method further includes mixing the biopolymer and the chemical crosslinking agent to initiate chemical crosslinking of the biopolymer. The mixture is delivered to the aneurysm via a lumen and an exit port of a catheter while the chemical crosslinking is ongoing. The mixture exits the catheter as a single cohesive strand that at least partially agglomerates to form a mass occupying at least 75% of a total internal volume of the aneurysm. During delivery of the mixture, the method includes expanding a tubular flow diverter to reinforce a neck of the aneurysm.
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公开(公告)号：US20230373040A1
公开(公告)日：2023-11-23
申请号：US18334917
申请日：2023-06-14
Applicant: Covidien LP
Inventor： Kevin V. Nguyen , Junwei Li , Andyanhdzung Huynh
CPC classification number: B23P19/047 , A61B17/12172 , A61B17/12113 , A61B17/12186 , A61B17/1214 , A61B17/12031 , A61B17/12145 , A61B2017/00526
Abstract: Systems and methods for treating an aneurysm in accordance with embodiments of the present technology include intravascularly delivering an occlusive member to an aneurysm cavity and deforming a shape of the occlusive member via introduction of an embolic element to a space between the occlusive member and an inner surface of the aneurysm wall.
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