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    Tissue-removing catheter, tissue-removing element, and method of making same
    1.
    发明授权
    Tissue-removing catheter, tissue-removing element, and method of making same 有权

    公开(公告)号：US10905458B2

    公开(公告)日：2021-02-02

    申请号：US15175755

    申请日：2016-06-07

    Applicant: Covidien LP

    Inventor： Ethan Andrew Guggenheimer ,  Victoria Schuman ,  Virgil Koski ,  Benjamin Robert Fruland ,  Lucas Schneider

    IPC: A61B17/3207

    Abstract: A tissue-removing catheter includes a tissue-removing element operatively connected to a drive shaft for rotation of the tissue-removing element about an axis of rotation in a cutting direction. A tissue-removing head of the tissue-removing element defines an annular cutting blade. In some embodiments, angularly spaced cutting teeth form the cutting blade. Inner shearing members extend radially inward from the cutting blade. As the tissue-removing element rotates in the cutting direction and advances axially through a body lumen, the annular cutting edge separates the tissue from the body lumen wall. Leading surfaces of the inner shearing members shear the separated tissue radially inwardly. In some embodiments, the tissue-removing element is an integrally formed, one-piece body made by removing material from a blank to form the cutting blade and inner shearing members.

    ANTI-THROMBOGENIC MEDICAL DEVICES
    2.
    发明申请
    ANTI-THROMBOGENIC MEDICAL DEVICES 审中-公开

    公开(公告)号：US20200323664A1

    公开(公告)日：2020-10-15

    申请号：US16913871

    申请日：2020-06-26

    Applicant: Covidien LP

    Inventor： John Wainwright ,  Todd Mendelson ,  Kurt Haggstrom ,  Masoud Molaei ,  Victoria Schuman ,  Min-Shyan Sheu

    IPC: A61F2/90 ,  A61F2/07 ,  B05D1/18 ,  B05D3/02 ,  B05D3/04

    Abstract: Medical devices that include a tubular member with a plurality of braided filaments, each filament crossing another of the filaments at a respective crossing point forming sidewall and a plurality of pores in the sidewall that are sized to inhibit flow of blood through the sidewall into an aneurysm to a degree sufficient to lead to thrombosis and healing of the aneurysm when the tubular member is positioned in a blood vessel and adjacent to the aneurysm, the pores have an average pore size that is less than or equal to about 500 microns when the tubular member is in an expanded state, the filaments possessing antithrombogenic surfaces to increase antithrombogenicity of the medical device with pores substantially free of webs formed by antithrombogenic material, such that fewer than 5% of the crossing points have webs formed by antithrombogenic material thereby permitting the pores to be substantially free of webs.

    VASCULAR REMODELING DEVICE
    6.
    发明申请
    VASCULAR REMODELING DEVICE 审中-公开
    血管再造装置

    公开(公告)号：US20160113786A1

    公开(公告)日：2016-04-28

    申请号：US14932330

    申请日：2015-11-04

    Applicant: COVIDIEN LP

    Inventor： Elad Israel Levy ,  Earl Slee ,  Sanjay Shrivastava ,  Victoria Schuman ,  Andy Huynh ,  Wenfeng Lu

    IPC: A61F2/86 ,  A61B17/12

    CPC classification number: A61F2/86 ,  A61B17/12022 ,  A61B17/12113 ,  A61B17/12118 ,  A61B17/1214 ,  A61B17/12172 ,  A61B2017/12054 ,  A61B2017/12063 ,  A61F2/954 ,  A61F2002/065 ,  A61F2002/823 ,  A61F2230/005 ,  A61F2230/0071

    Abstract: A generally spherical vascular remodeling device is permanently positionable at a junction of afferent and efferent vessels of a bifurcation having an aneurysm. After positioning the device at the junction to substantially conform the device to the shape of the junction, the device acts as a scaffolding to inhibit herniation of objects out of the aneurysm and the device permits perfusion to the efferent vessels. Positioning the device may include deployment and mechanical or electrolytic release from a catheter. Embolic material may be inserted in the aneurysm before or after positioning the device. The device may have a first end, a second end substantially opposite to the first end, and a plurality of filaments extending between and coupled at the first end and the second end. Such devices may be football shaped, pumpkin shaped, or twisted. The device may include a plurality of loops forming a generally spherical shape.

    Abstract translation: 通常为球形的血管重建装置可永久定位在具有动脉瘤的分叉的传入和传出血管的交界处。 在将装置定位在接合处以将装置基本上符合接合部的形状之后，该装置用作支架以抑制物体从动脉瘤中的突出，并且该装置允许灌注到传出血管。 定位装置可以包括从导管部署和机械或电解释放。 栓塞材料可以在设备定位之前或之后插入动脉瘤中。 该装置可以具有第一端，与第一端基本相对的第二端，以及在第一端和第二端处延伸并在其之间耦合的多根细丝。 这种装置可以是足球形，南瓜形或扭曲的。 该装置可以包括形成大致球形的多个环。

    ECCENTRIC PASS-THRU CUTTER
    7.
    发明申请
    ECCENTRIC PASS-THRU CUTTER 审中-公开
    ECCENTRIC PASS-THRU切割机

    公开(公告)号：US20140194912A1

    公开(公告)日：2014-07-10

    申请号：US14102101

    申请日：2013-12-10

    Applicant: Covidien LP

    Inventor： Alexander Rice ,  Victoria Schuman

    IPC: A61B17/3207

    CPC classification number: A61B17/320758 ,  A61B17/3207 ,  A61B17/320783 ,  A61B2017/320766 ,  A61B2017/320775 ,  A61B2017/320791

    Abstract: A catheter includes an elongate catheter body configured for insertion into a body lumen of a subject. A cutter is located generally at a distal end of the catheter body for rotation generally about a longitudinal axis of the cutter. An eccentric opening in a distal end portion of the cutter defines an angled cutting edge for cutting material from a wall of the body lumen. A center of the opening is offset from the longitudinal axis of the cutter. A cavity extends from the opening through the cutter from the distal end portion to a proximal end portion to allow material cut by the cutter to pass through the cutter into an interior passage of the catheter body for removal from the body lumen.

    Abstract translation: 导管包括构造成用于插入到受试者的体腔中的细长导管体。 切割器通常位于导管主体的远端，用于大致围绕切割器的纵向轴线旋转。 在切割器的远端部分中的偏心开口限定了用于从身体腔的壁切割材料的成角度的切割边缘。 开口的中心偏离切割器的纵向轴线。 空腔从开口穿过切割器从远端部分延伸到近端部分，以允许由切割器切割的材料通过切割器进入导管主体的内部通道，用于从体腔移除。

    TISSUE-REMOVING CATHETER, TISSUE-REMOVING ELEMENT, AND METHOD OF MAKING SAME
    8.
    发明申请
    TISSUE-REMOVING CATHETER, TISSUE-REMOVING ELEMENT, AND METHOD OF MAKING SAME 审中-公开

    公开(公告)号：US20170196588A1

    公开(公告)日：2017-07-13

    申请号：US14994343

    申请日：2016-01-13

    Applicant: Covidien LP

    Inventor： Victoria Schuman ,  Ethan Guggenheimer

    IPC: A61B17/3207 ,  A61B17/00 ,  A61B17/3205

    CPC classification number: A61B17/320758 ,  A61B17/32053 ,  A61B17/320783 ,  A61B2017/320775 ,  A61B2017/320791

    Abstract: A tissue-removing catheter includes a tissue-removing element operatively connected to a drive shaft for rotation of the tissue-removing element about an axis of rotation in a cutting direction. In some embodiments, the tissue removing element has a cutting blade and cutting teeth positioned radially inward of the cutting blade with respect to the axis of rotation. The cutting blade and cutting teeth are fixed with respect to one another to form first and second cuts in tissue as the tissue-removing element rotates. In certain embodiments, the tissue-removing element includes a cutting blade and raised elements spaced apart inward of the cutting blade relative to the axis of rotation to define an annular tissue-receiving channel between the cutting blade and the raised elements. A bottom surface of the channel can define cutting teeth.

    Coated medical devices and methods of making and using same
    9.
    发明授权
    Coated medical devices and methods of making and using same 有权
    涂层医疗器械及其使用方法

    公开(公告)号：US09320592B2

    公开(公告)日：2016-04-26

    申请号：US13844577

    申请日：2013-03-15

    Applicant: Covidien LP

    Inventor： John Wainwright ,  Todd Mendelson ,  Kurt Haggstrom ,  Masoud Molaei ,  Victoria Schuman ,  Min-Shyan Sheu

    IPC: A61F2/06 ,  A61F2/07 ,  A61F2/90

    CPC classification number: A61F2/07 ,  A61F2/90 ,  A61F2002/072 ,  A61F2002/823 ,  A61F2250/0067

    Abstract: Coating methods and related devices are provided. Such devices can include stents. For example, the device can comprise a sidewall and a plurality of pores in the sidewall that are sized to inhibit flow of blood through the sidewall into an aneurysm to a degree sufficient to lead to thrombosis and healing of the aneurysm when the tubular member is positioned in a blood vessel and adjacent to the aneurysm. The device can also comprise an anti-thrombogenic coating distributed over at least a portion of the device such that the pores are substantially free of webs formed by the coating.

    Abstract translation: 提供涂布方法和相关设备。 这样的装置可以包括支架。 例如，该装置可以包括侧壁和侧壁中的多个孔，其尺寸被设计成当管状构件定位时防止血液通过侧壁流入动脉瘤至足以导致动脉瘤血栓形成和愈合的程度 在血管中并且与动脉瘤相邻。 该装置还可以包含分布在装置的至少一部分上的抗血栓形成的涂层，使得孔基本上不含由涂层形成的网。

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