Expandable intravascular occlusion material removal devices and methods
of use
    1.
    发明授权
    Expandable intravascular occlusion material removal devices and methods of use 失效
    可扩张的血管内阻塞材料去除装置及使用方法

    公开(公告)号:US5540707A

    公开(公告)日:1996-07-30

    申请号:US261813

    申请日:1994-06-17

    IPC分类号: A61B17/22 A61B17/32 A61B19/00

    摘要: An improved expandable removal element for an atherectomy device wherein the expandable removal element is movable between an expanded position and a contracted position. In one embodiment of the present invention, a single drive shaft is operatively connected to the distal end of the expandable material removal element for rotating the removal element. A catheter surrounds a portion of the drive shaft. The catheter is shiftable with respect to the drive shaft for moving the material removal element between the expanded position and the contracted position. In another embodiment of the present invention, dual coaxial drive shafts are employed. The inner drive shaft and the outer drive are shiftable with respect to one another for moving the removal element between the expanded position and the contracted position. The present invention also describes several embodiments for an improved removal element. One embodiment or the present invention is to provide a braid pattern wherein each single primary braid wire within the braid pattern is individually radially wrapped with a second "wrapping" wire. The "wrapping" wire, which is coated with an abrasive, primarily performs the removal function. Finally, a number of novel methods for removing vascular occlusion material are provided.

    摘要翻译: 一种用于粥样斑块切除装置的改进的可扩张去除元件,其中所述可扩张移除元件可在扩张位置和收缩位置之间移动。 在本发明的一个实施例中,单个驱动轴可操作地连接到可膨胀材料去除元件的远端,用于旋转移除元件。 导管围绕驱动轴的一部分。 导管可相对于驱动轴移动,以便在扩张位置和收缩位置之间移动材料移除元件。 在本发明的另一实施例中,采用双同轴驱动轴。 内部驱动轴和外部驱动器可相对于彼此移动,用于使移除元件在扩张位置和收缩位置之间移动。 本发明还描述了改进的去除元件的几个实施例。 一个实施例或本发明是提供一种编织图案,其中编织图案内的每个单个主编织线用第二“缠绕”线单独径向包裹。 涂有研磨剂的“包裹”线主要执行去除功能。 最后,提供了许多用于去除血管闭塞材料的新方法。

    Expandable intravascular occlusion material removal devices and methods
of use

    公开(公告)号:US5836868A

    公开(公告)日:1998-11-17

    申请号:US621350

    申请日:1996-03-25

    IPC分类号: A61B17/22 A61B17/32

    摘要: An improved expandable removal element (16) for an atherectomy device wherein the expandable removal element (16) is movable between an expanded position and a contracted position. In one embodiment of the present invention, a single drive shaft (92) is operatively connected to the distal end of the expandable material removal element (16) for rotating the removal element (16). A catheter (178) may surround a portion of the drive shaft (92). The catheter (178) is shiftable with respect to the drive shaft (92) for moving the material removal element between the expanded position and the contracted position. In another embodiment of the present invention, dual coaxial drive shafts are employed. The inner drive shaft (312) and the outer drive (314) are shiftable with respect to one another for moving the removal element (252) between the expanded position and the contracted position. The present invention also describes several embodiments for an improved removal element (252). One embodiment of the removal element of the present invention comprised a plurality of braided wires having an abrasive disposed thereon. Another embodiment of a removal element is to provide a plurality of individual wires within each "braid" to increase the abrasive surface area of the removal element. In this "multi-ended" configuration, a plurality of wires are bundled together to form a single multi-ended strand (330). These single multi-ended strands are then braided together and an abrasive is disposed thereon to form the removal element (252). In another embodiment or the present invention is to provide a braid pattern wherein each single primary braid wire within the braid pattern is individually radially wrapped with a second "wrapping" wire (342). The "wrapping" wire (342), which may be coated with an abrasive (344), primarily performs the removal function. Finally, a number of novel methods for removing vascular occlusion material are provided.

    Expandable intravascular occlusion material removal devices and methods
of use
    3.
    发明授权
    Expandable intravascular occlusion material removal devices and methods of use 失效
    可扩张的血管内阻塞材料去除装置及使用方法

    公开(公告)号:US5897567A

    公开(公告)日:1999-04-27

    申请号:US924850

    申请日:1997-09-09

    IPC分类号: A61B17/32

    CPC分类号: A61B17/32

    摘要: An improved expandable removal element (16) for an atherectomy device wherein the expandable removal element (16) is movable between an expanded position and a contracted position. In one embodiment of the present invention, a single drive shaft (92) is operatively connected to the distal end of the expandable material removal element (16) for rotating the removal element (16). A catheter (178) may surround a portion of the drive shaft (92). The catheter (178) is shiftable with respect to the drive shaft (92) for moving the material removal element between the expanded position and the contracted position. In another embodiment of the present invention, dual coaxial drive shafts are employed. The inner drive shaft (312) and the outer drive (314) are shiftable with respect to one another for moving the removal element (252) between the expanded position and the contracted position. The present invention also describes several embodiments for an improved removal element (252).

    摘要翻译: 一种用于粥样斑块切除装置的改进的可扩张去除元件(16),其中所述可扩张移除元件(16)可在展开位置和收缩位置之间移动。 在本发明的一个实施例中,单个驱动轴(92)可操作地连接到可膨胀材料移除元件(16)的远端,用于旋转移除元件(16)。 导管(178)可围绕驱动轴(92)的一部分。 导管(178)可相对于驱动轴(92)移动,用于在扩张位置和收缩位置之间移动材料移除元件。 在本发明的另一实施例中,采用双同轴驱动轴。 内部驱动轴(312)和外部驱动器(314)可以相对于彼此移动,以在移动元件(252)之间在扩张位置和收缩位置之间移动。 本发明还描述了改进的去除元件(252)的几个实施例。

    Methods and apparatus for treating body tissue sphincters and the like
    7.
    发明授权
    Methods and apparatus for treating body tissue sphincters and the like 有权
    用于治疗身体组织括约肌等的方法和装置

    公开(公告)号:US08187164B2

    公开(公告)日:2012-05-29

    申请号:US12610633

    申请日:2009-11-02

    IPC分类号: A61F2/00 A61F13/00

    摘要: A plurality of structures that resiliently attract one another are provided for implanting in a patient around a body tissue structure of the patient. For example, the body tissue structure may be the esophagus, and the plurality of structures may be implanted in an annulus around the outside of the esophagus, the annulus being substantially coaxial with the esophagus. The attraction may be between annularly adjacent ones of the structures in the annulus, and it may be provided, for example, by magnets or springs. The array of structures is preferably self-limiting with respect to the smallest area that it can encompass, and this smallest area is preferably large enough to prevent the apparatus from applying excessive pressure to tissue passing through that area.

    摘要翻译: 提供弹性地彼此吸引的多个结构,用于将患者周围的身体组织结构植入患者体内。 例如,身体组织结构可以是食道,并且可以将多个结构植入围绕食管外侧的环带中,环与食道基本上同轴。 吸引物可以在环形结构中的环形相邻结构之间,并且其可以例如由磁体或弹簧提供。 结构的阵列优选地相对于其可以包围的最小面积是自限制的,并且该最小面积优选地足够大以防止装置对通过该区域的组织施加过大的压力。

    METHODS AND APPARATUS FOR TREATING BODY TISSUE SPHINCTERS AND THE LIKE
    8.
    发明申请
    METHODS AND APPARATUS FOR TREATING BODY TISSUE SPHINCTERS AND THE LIKE 有权
    用于治疗身体组织细胞的方法和装置

    公开(公告)号:US20100076573A1

    公开(公告)日:2010-03-25

    申请号:US12610633

    申请日:2009-11-02

    IPC分类号: A61F2/04 A61B17/08

    摘要: A plurality of structures that resiliently attract one another are provided for implanting in a patient around a body tissue structure of the patient. For example, the body tissue structure may be the esophagus, and the plurality of structures may be implanted in an annulus around the outside of the esophagus, the annulus being substantially coaxial with the esophagus. The attraction may be between annularly adjacent ones of the structures in the annulus, and it may be provided, for example, by magnets or springs. The array of structures is preferably self-limiting with respect to the smallest area that it can encompass, and this smallest area is preferably large enough to prevent the apparatus from applying excessive pressure to tissue passing through that area.

    摘要翻译: 提供弹性地彼此吸引的多个结构,用于将患者周围的身体组织结构植入患者体内。 例如,身体组织结构可以是食道,并且可以将多个结构植入围绕食管外侧的环带中,环与食道基本上同轴。 吸引物可以在环形结构中的环形相邻结构之间,并且其可以例如由磁体或弹簧提供。 结构的阵列优选地相对于其可以包围的最小面积是自限制的,并且该最小面积优选地足够大以防止装置对通过该区域的组织施加过大的压力。

    Endovascular graft system
    10.
    发明授权

    公开(公告)号:US06652572B2

    公开(公告)日:2003-11-25

    申请号:US09928790

    申请日:2001-08-13

    IPC分类号: A61F206

    摘要: The invention provides an attachment member for anchoring a graft system at a desired location in a vessel of a patient's vascular system. The attachment member comprises a cranial zone having a first radial strength, a caudal zone having a second radial strength, and an intermediate zone having multiple joining longitudinal struts located between and connecting the cranial and caudal zones. The intermediate zone has a third radial strength which is less than the first and second radial strengths, and the cranial and caudal zones are formed from a self-expanding material capable of expanding from a first delivery configuration to a second deployed configuration. The invention also provides an endovascular graft system, a method for deploying an aortic attachment member, and a method for repairing an aneurysm in an aorta.