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    Galvanically assisted aneurysm treatment
    2.
    发明授权
    Galvanically assisted aneurysm treatment 有权

    公开(公告)号：US10265515B2

    公开(公告)日：2019-04-23

    申请号：US14671217

    申请日：2015-03-27

    Applicant: COVIDIEN LP

    Inventor： James Davidson

    IPC: A61N1/05 ,  A61B17/12 ,  A61B17/00

    Abstract: Treatment of an aneurysm or other vascular defect can be facilitated or enhanced by a galvanic cell formed by an implantable medical device configured to be implanted at or within the aneurysm or other vascular defect. The implantable medical device can include a primary structure including an anodic metal and a cathodic metal. The anodic metal and the cathodic metal each form a fraction of a total surface area of the primary structure. A galvanic cell formed by the anodic metal and the cathodic metal is configured to induce a galvanic voltage within blood for a duration of time to promote thrombosis. The thickness of the anodic metal can be less than or equal to 5 μm, for example, to provide galvanic activity for between 5 and 30 minutes.

    Retrieval of material from corporeal lumens
    4.
    发明授权
    Retrieval of material from corporeal lumens 有权

    公开(公告)号：US12076020B2

    公开(公告)日：2024-09-03

    申请号：US17455646

    申请日：2021-11-18

    Applicant: Covidien LP

    Inventor： John Wainwright ,  Hoai Nguyen ,  James Davidson

    IPC: A61B17/12

    CPC classification number: A61B17/12109 ,  A61B17/1214 ,  A61B17/12168 ,  A61B2017/1205

    Abstract: Retrieval of material from vessel lumens can be improved by use of a distal element comprising an expandable mesh. a treatment device includes an elongated member having a proximal portion and a distal portion configured to be positioned within a blood vessel at a treatment site at or near a thrombus. A distal element comprising a plurality of woven filaments defining a shaft at a proximal portion and a body distal of the shaft is coupled to the distal portion of the elongated member via a connection assembly. In an expanded state, at least a portion of the distal element is configured to be in apposition with the blood vessel wall at the treatment site to anchor or stabilize the elongated member with respect to the blood vessel. The distal element can be electrically coupled to an extracorporeal current generator.

    DEVICES, SYSTEMS, AND METHODS FOR DISRUPTING OBSTRUCTIONS IN BODY LUMENS
    5.
    发明申请
    DEVICES, SYSTEMS, AND METHODS FOR DISRUPTING OBSTRUCTIONS IN BODY LUMENS 有权

    公开(公告)号：US20220287733A1

    公开(公告)日：2022-09-15

    申请号：US17249830

    申请日：2021-03-15

    Applicant: Covidien LP

    Inventor： James Davidson

    IPC: A61B17/225 ,  A61M5/00

    Abstract: Systems and methods for detecting and disrupting obstructions (such as clot material) within a blood vessel are disclosed herein. In some examples, the present technology comprises a system for detecting and disrupting a clot in a cerebral blood vessel of a patient, where the system comprises a treatment environment, a detection system, and an energy delivery device. The detection system may be configured to determine the presence of a blood clot within a cerebral blood vessel of a patient. In some embodiments, the detection system is configured to obtain data characterizing a position of the clot within the treatment environment. The energy delivery device can be configured to receive the data characterizing the position of the clot and, based on the data, deliver energy to the clot, thereby disrupting the clot and restoring blood flow in the affected blood vessel.

    TAPERED MULTILAYER CORE MEMBER FOR MEDICAL DEVICE DELIVERY SYSTEMS
    7.
    发明申请
    TAPERED MULTILAYER CORE MEMBER FOR MEDICAL DEVICE DELIVERY SYSTEMS 有权

    公开(公告)号：US20210259866A1

    公开(公告)日：2021-08-26

    申请号：US16802227

    申请日：2020-02-26

    Applicant: Covidien LP

    Inventor： Ashok Nageswaran ,  James Davidson

    IPC: A61F2/966 ,  A61L29/02

    Abstract: A core member and associated systems and methods are disclosed herein. In some embodiments, the core member comprises a first portion including first and second materials, and a second portion distal to the first portion and including only the first material. The first and second portions can each be tapered in a continuous or discontinuous manner. The second portion can have a minimum length that is substantially straight and heat-treated or aged to have a minimum strength modulus.

    GALVANICALLY ASSISTED ANEURYSM TREATMENT
    8.
    发明申请
    GALVANICALLY ASSISTED ANEURYSM TREATMENT 审中-公开
    急性辅助治疗

    公开(公告)号：US20160279406A1

    公开(公告)日：2016-09-29

    申请号：US14671217

    申请日：2015-03-27

    Applicant: COVIDIEN LP

    Inventor： James Davidson

    IPC: A61N1/05

    CPC classification number: A61N1/05 ,  A61B17/12022 ,  A61B17/12113 ,  A61B17/1214 ,  A61B2017/00831

    Abstract: Treatment of an aneurysm or other vascular defect can be facilitated or enhanced by a galvanic cell formed by an implantable medical device configured to be implanted at or within the aneurysm or other vascular defect. The implantable medical device can include a primary structure including an anodic metal and a cathodic metal. The anodic metal and the cathodic metal each form a fraction of a total surface area of the primary structure. A galvanic cell formed by the anodic metal and the cathodic metal is configured to induce a galvanic voltage within blood for a duration of time to promote thrombosis. The thickness of the anodic metal can be less than or equal to 5 μm, for example, to provide galvanic activity for between 5 and 30 minutes.

    Abstract translation: 动脉瘤或其他血管缺陷的治疗可以通过被配置成植入在动脉瘤或其它血管缺损内或其中的植入式医疗装置形成的原电池来促进或增强。 可植入医疗装置可以包括包括阳极金属和阴极金属的一次结构。 阳极金属和阴极金属各自形成一次结构的总表面积的一部分。 由阳极金属和阴极金属形成的电池被配置为在血液中引起电压电压持续一段时间以促进血栓形成。 例如，阳极金属的厚度可以小于或等于5μm，以提供5-30分钟之间的电流活性。

    ELECTRICALLY ENHANCED RETRIEVAL OF MATERIAL FROM VESSEL LUMENS
    9.
    发明申请
    ELECTRICALLY ENHANCED RETRIEVAL OF MATERIAL FROM VESSEL LUMENS 有权

    公开(公告)号：US20220202431A1

    公开(公告)日：2022-06-30

    申请号：US17247897

    申请日：2020-12-29

    Applicant: Covidien LP

    Inventor： James Davidson ,  Hoai Nguyen

    IPC: A61B17/22 ,  A61F2/95

    Abstract: Retrieval of material from vessel lumens can be improved by electrically enhancing attachment of the material to the thrombectomy system. The system can an interventional element configured to be delivered to a treatment site and to be electrically coupled to an extracorporeal power supply. The interventional element can be surface treated (e.g., via electrochemical anodization) to achieve a desired electrical conductivity gradient over the surface of the interventional element. The electrical conductivity gradient can result in a more desirable surface charge distribution upon delivery of electrical current to the interventional element.

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