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公开(公告)号：US09295571B2
公开(公告)日：2016-03-29
申请号：US13795556
申请日：2013-03-12
Applicant: Covidien LP
Inventor： Gabriel F. Newell , Andy Huynh , Lawrence Farhat
CPC classification number: A61F2/966 , A61B2017/1205 , A61F2/844 , A61F2002/9534 , A61F2002/9665 , A61F2210/0014
Abstract: Described herein are flexible implantable devices or stents that can, for example, navigate tortuous vessels of the neurovasculature. The devices can also conform to the shape of tortuous vessels of the vasculature. In some embodiments, the devices can direct blood flow within a vessel away from an aneurysm or limit blood flow to the aneurysm. Methods and structures are provided for adjusting, along a length of the device, the porosity of the device while maintaining a cross-sectional dimension. In some embodiments, a distal stent cover covers the distal end of the device and reduces friction between the stent and an inner surface of a delivery device, such as a catheter.
Abstract translation: 这里描述的是可以例如导航神经血管系统的曲折血管的柔性可植入装置或支架。 该装置还可以符合脉管系统曲折血管的形状。 在一些实施例中，装置可引导血管内的血流远离动脉瘤或限制血液流动到动脉瘤。 提供了方法和结构，用于在保持横截面尺寸的同时在装置的长度上调节装置的孔隙率。 在一些实施例中，远端支架盖覆盖装置的远端并且减小支架与输送装置（例如导管）的内表面之间的摩擦。
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公开(公告)号：US20150359649A1
公开(公告)日：2015-12-17
申请号：US14745613
申请日：2015-06-22
Applicant: Covidien LP
Inventor： Andy Huynh
CPC classification number: A61F2/95 , A61B17/12118 , A61B2017/1205 , A61B2017/12054 , A61B2017/12077 , A61F2/844 , A61F2/86 , A61F2/90 , A61F2/91 , A61F2/966 , A61F2002/823 , A61F2002/9505 , A61F2002/9511 , A61F2002/9522 , A61F2002/9528 , A61F2002/9534 , A61F2002/9665
Abstract: Flexible implantable devices or stents can navigate tortuous vessels of the neurovasculature. The devices can also conform to the shape of tortuous vessels of the vasculature. In some embodiments, the devices can direct blood flow within a vessel away from an aneurysm or limit blood flow to the aneurysm. Methods and structures are provided for adjusting, along a length of the device, the porosity of the device while maintaining a cross-sectional dimension. In some embodiments, small hooks releasably engage the stent at a proximal end and are able to resheath the stent by retracting a proximal retaining member where the hooks are coupled to. The hooks straighten, unfurl, or otherwise disengage the stent when either unrestrained by a catheter or when coming into contact with an external stimulus found in the patient's vasculature.
Abstract translation: 灵活的可植入装置或支架可以导航神经血管的曲折血管。 该装置还可以符合脉管系统曲折血管的形状。 在一些实施例中，装置可引导血管内的血流远离动脉瘤或限制血液流动到动脉瘤。 提供了方法和结构，用于在保持横截面尺寸的同时在装置的长度上调节装置的孔隙率。 在一些实施例中，小钩在近端可释放地接合支架，并且能够通过缩回钩连接到其上的近侧保持构件来重新固定支架。 钩子拉伸，展开或以其他方式脱离支架，当不受导管束缚或当与患者的脉管系统中发现的外部刺激接触时。
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公开(公告)号：US20140172067A1
公开(公告)日：2014-06-19
申请号：US14040501
申请日：2013-09-27
Applicant: Covidien LP
Inventor： Kenneth Brown , Ghislain Sema , Michael L. Losordo , Evan David Epstein , Gabriel Newell , Andy Huynh , Lawrence Farhat
IPC: A61F2/95
CPC classification number: A61F2/962 , A61B90/39 , A61B2090/3966 , A61F2/95 , A61F2/966 , A61F2/97 , A61F2002/9522 , A61F2002/9665 , A61M25/0068 , A61M2025/0042 , A61M2025/0681
Abstract: A stent delivery system can include a core member, first and second restraints, and a stent engagement component. The core member can have a distal segment. The first and second restraints can be coupled to the core member distal segment and axially spaced apart from each other to provide an axial gap. The first and second restraints can each have an outer profile that tapers radially inwardly in directions away from the gap. The stent engagement component can be at least partially disposed in the axial gap between the first and second restraints such that the component is slidably and rotatably coupled to the core member distal segment.
Abstract translation: 支架输送系统可以包括芯构件，第一和第二约束件以及支架接合部件。 核心部件可具有远端部分。 第一和第二限制件可以联接到芯构件远侧段并且彼此轴向间隔开以提供轴向间隙。 第一和第二约束可以各自具有沿远离间隙的方向径向向内成锥形的外轮廓。 支架接合部件可以至少部分地设置在第一和第二约束件之间的轴向间隙中，使得部件可滑动地且可旋转地联接到芯部件远端部分。
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24.发明授权公开(公告)号：US11369394B2
公开(公告)日：2022-06-28
申请号：US16709431
申请日：2019-12-10
Applicant: Covidien LP
Inventor： James Davidson , Andy Huynh , Kevin Nguyen
IPC: A61B17/221 , A61B17/22 , A61B17/00 , A61B17/12
Abstract: A medical device, configured to perform an endovascular therapy, e.g., thrombectomy, can comprise an elongate manipulation member having a first connection member proximate a distal end of the elongate manipulation member, and an intervention member having a second connection member proximate a proximal end of the intervention member. The second connection member can be connected to the first connection member such that the first connection member can rotate relative to the second connection member.
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公开(公告)号：US20220125455A1
公开(公告)日：2022-04-28
申请号：US17647319
申请日：2022-01-06
Applicant: Covidien LP
Inventor： Gaurav Girdhar , Hoai Nguyen , Andy Huynh , Ashok Nageswaran , Christopher Andrews
IPC: A61B17/22 , A61F2/95 , A61B18/00 , A61B17/221
Abstract: Retrieval of material from vessel lumens can be improved by electrically enhancing attachment of the material to the removal device. The removal device can have a core assembly that includes a hypotube coupled to a first electrical terminal and a pushwire coupled to a second electrical terminal, the pushwire extending through the hypotube lumen. An insulating layer separates the hypotube and the pushwire, and an interventional element is coupled to a distal end of the pushwire. The interventional element can be disposed adjacent to a thrombus. An electrical signal is delivered to the interventional element to promote adhesion of the thrombus to the interventional element. The electrical signal can optionally be a periodic waveform, and the total energy delivered can be between 0.75-24,000 mJ and the peak current delivered via the electrical signal can be between 0.5-5 mA.
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Patent Agency Ranking
公开(公告)号：US11058444B2
公开(公告)日：2021-07-13
申请号：US15838214
申请日：2017-12-11
Applicant: Covidien LP
Inventor： Gaurav Girdhar , Hoai Nguyen , Andy Huynh , Ashok Nageswaran , Christopher Andrews
Abstract: Retrieval of material from vessel lumens can be improved by electrically enhancing attachment of the material to the removal device. The removal device can have a core assembly that includes a hypotube coupled to a first electrical terminal and a pushwire coupled to a second electrical terminal, the pushwire extending through the hypotube lumen. An insulating layer separates the hypotube and the pushwire, and an interventional element is coupled to a distal end of the pushwire. The interventional element can be disposed adjacent to a thrombus. An electrical signal is delivered to the interventional element to promote adhesion of the thrombus to the interventional element. The electrical signal can optionally be a periodic waveform, and the total energy delivered can be between 0.75-24,000 mJ and the peak current delivered via the electrical signal can be between 0.5-5 mA.
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公开(公告)号：US20210068853A1
公开(公告)日：2021-03-11
申请号：US16949849
申请日：2020-11-17
Applicant: Covidien LP
Inventor： Hoai (Kevin) Nguyen , Gaurav Girdhar , Andy Huynh
Abstract: Retrieval of material from vessel lumens can be improved by electrically enhancing attachment of the material to the thrombectomy system. The system can include a catheter having a distal portion configured to be positioned adjacent to a thrombus in a blood vessel, an electrode disposed at the distal portion of the catheter, and an interventional element configured to be delivered through a lumen of the catheter. The electrode and the interventional element are each configured to be electrically coupled to an extracorporeal power supply.
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公开(公告)号：US10537452B2
公开(公告)日：2020-01-21
申请号：US15652329
申请日：2017-07-18
Applicant: Covidien LP
Inventor： Kenneth Brown , Ghislain Sema , Michael Losordo , Evan Epstein , Gabriel Newell , Andy Huynh , Lawrence Farhat
Abstract: A stent delivery system can include a core member, first and second restraints, and a stent engagement component. The core member can have a distal segment. The first and second restraints can be coupled to the core member distal segment and axially spaced apart from each other to provide an axial gap. The first and second restraints can each have an outer profile that tapers radially inwardly in directions away from the gap. The stent engagement component can be at least partially disposed in the axial gap between the first and second restraints such that the component is slidably and rotatably coupled to the core member distal segment.
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公开(公告)号：US20190388111A1
公开(公告)日：2019-12-26
申请号：US16024367
申请日：2018-06-29
Applicant: Covidien LP
Inventor： Hoai (Kevin) Nguyen , Gaurav Girdhar , Andy Huynh
Abstract: Retrieval of material from vessel lumens can be improved by electrically enhancing attachment of the material to the thrombectomy system. The system can include a catheter having a distal portion configured to be positioned adjacent to a thrombus in a blood vessel, an electrode disposed at the distal portion of the catheter, and an interventional element configured to be delivered through a lumen of the catheter. The electrode and the interventional element are each configured to be electrically coupled to an extracorporeal power supply.
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公开(公告)号：US20190175199A1
公开(公告)日：2019-06-13
申请号：US15838214
申请日：2017-12-11
Applicant: Covidien LP
Inventor： Gaurav Girdhar , Hoai Nguyen , Andy Huynh , Ashok Nageswaran , Christopher Andrews
Abstract: Retrieval of material from vessel lumens can be improved by electrically enhancing attachment of the material to the removal device. The removal device can have a core assembly that includes a hypotube coupled to a first electrical terminal and a pushwire coupled to a second electrical terminal, the pushwire extending through the hypotube lumen. An insulating layer separates the hypotube and the pushwire, and an interventional element is coupled to a distal end of the pushwire. The interventional element can be disposed adjacent to a thrombus. An electrical signal is delivered to the interventional element to promote adhesion of the thrombus to the interventional element. The electrical signal can optionally be a periodic waveform, and the total energy delivered can be between 0.75-24,000 mJ and the peak current delivered via the electrical signal can be between 0.5-5 mA.
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