Methods and apparatus for selective, oxidative patterning of a surface

    公开(公告)号:US20060127595A1

    公开(公告)日:2006-06-15

    申请号:US11333090

    申请日:2006-01-17

    IPC分类号: B41M5/00 C08F2/46

    摘要: The present invention provides methods and apparatus for selectively patterning surfaces using radical species generated with a photocatalyst. The photocatalyst may comprise a photocatalytic semiconductor or a photosensitizer. The radical species are brought into contact with an oxidizable coating disposed on the surface, thereby locally oxidizing and selectively patterning the surface. The photocatalyst is preferably disposed on a delivery device, such as a stamp, mask, or scanning probe, that is brought into close proximity or contact with the coated surface. The photocatalyst is then excited in a manner capable of generating radical species, for example, oxygen-containing radical species, in appropriate media. It is expected that these radical species will be transferred to the coated surface along a substantially shortest distance path, thereby locally oxidizing and patterning the surface.

    Powered tissue modification devices and methods
    2.
    发明申请
    Powered tissue modification devices and methods 有权
    动力组织修饰装置及方法

    公开(公告)号:US20070213735A1

    公开(公告)日:2007-09-13

    申请号:US11406486

    申请日:2006-04-17

    IPC分类号: A61B17/00

    摘要: A device for modifying tissue in a spine may include: a shaft having a proximal portion and a distal portion, the distal portion having dimensions which allow it to be passed into an epidural space of the spine and between target and non-target tissues; at least one distal force application member extending from the distal portion of the shaft and configured to facilitate application of at least one of anchoring force and tensioning force to the shaft; at least one movable tissue modifying member coupled with the shaft at or near its distal portion; at least one drive member coupled with the at least one tissue modifying member to activate the at least one tissue modifying member; and at least one power transmission member coupled with the at least one drive member to deliver power to the at least one drive member.

    摘要翻译: 用于修改脊柱中的组织的装置可以包括:具有近端部分和远侧部分的轴,所述远端部分具有允许其进入脊柱的硬膜外腔中以及靶和非靶组织之间的尺寸; 至少一个远端力施加构件,其从所述轴的远侧部分延伸并且构造成便于将锚固力和张紧力中的至少一个施加到所述轴; 至少一个可动组织修改构件,其在远端部分处或其附近与所述轴联接; 至少一个驱动构件与所述至少一个组织修改构件联接以激活所述至少一个组织修改构件; 以及与所述至少一个驱动构件联接的至少一个动力传递构件,以向所述至少一个驱动构件输送动力。

    System for optimizing anchoring force
    5.
    发明申请
    System for optimizing anchoring force 有权
    优化锚固力的系统

    公开(公告)号:US20050277983A1

    公开(公告)日:2005-12-15

    申请号:US10865736

    申请日:2004-06-09

    摘要: Systems for optimizing anchoring force are described herein. In securing tissue folds, over-compression of the tissue directly underlying the anchors is avoided by utilizing tissue anchors having expandable arms configured to minimize contact area between the anchor and tissue. When the anchor is in its expanded configuration, a load is applied to the anchor until it is optimally configured to accommodate a range of deflections while the anchor itself exerts a substantially constant force against the tissue. Various devices, e.g., stops, spring members, fuses, strain gauges, etc., can be used to indicate when the anchor has been deflected to a predetermined level within the optimal range. Moreover, other factors to affect the anchor characteristics include, e.g., varying the number of arms or struts of the anchor, positioning of the arms, configuration of the arms, the length of the collars, etc.

    摘要翻译: 这里描述了用于优化锚固力的系统。 在固定组织褶皱时,通过利用具有可扩张臂的组织锚来避免直接位于锚固件正下方的组织的过度压缩,所述组织锚构造成使锚和组织之间的接触面积最小化。 当锚固件处于其膨胀构型时,将负载施加到锚固件,直到其被最佳地构造成适应一定范围的偏转,同时锚固件本身对组织施加基本恒定的力。 可以使用各种装置,例如止动件,弹簧构件,保险丝,应变计等来指示锚固件何时被偏转到最佳范围内的预定水平。 此外,影响锚固特征的其他因素包括例如改变锚的臂或支柱的数量,臂的定位,臂的构型,套环的长度等。

    Two piece heart valve and anchor
    6.
    发明申请
    Two piece heart valve and anchor 审中-公开
    两片心脏瓣膜和锚

    公开(公告)号:US20050137691A1

    公开(公告)日:2005-06-23

    申请号:US10746942

    申请日:2003-12-23

    IPC分类号: A61F2/06 A61F2/24 A61F2/90

    摘要: Apparatus for endovascularly replacing a patient's heart valve, including: a custom-designed anchor; and a replacement valve, wherein the custom-designed anchor is adapted to engage native leaflets of the heart valve, and wherein the anchor and the valve are adapted for in vivo expansion and coupling to one another to form composite apparatus that endovascularly replaces the heart valve. The invention also includes a method for endovascularly replacing a patient's heart valve. In some embodiments the method includes the steps of: providing apparatus comprising an anchor piece and a replacement valve piece; endovascularly delivering the anchor piece to a vicinity of the heart valve in a collapsed delivery configuration; expanding the anchor piece to a deployed configuration; engaging at least one valve leaflet of the heart valve with the anchor piece; endovascularly delivering the replacement valve piece to the vicinity of the heart valve in a collapsed delivery configuration; expanding the replacement valve piece to a deployed configuration; and coupling the valve piece to the anchor piece in vivo to form composite two-piece apparatus that endovascularly replaces the patient's heart valve.

    摘要翻译: 用于血管内替代患者心脏瓣膜的装置,包括:定制设计的锚; 和替换阀,其中所述定制设计的锚适于接合所述心脏瓣膜的天然传单,并且其中所述锚固件和所述阀适于体内膨胀和彼此耦合以形成复合装置,所述复合装置血管内取代所述心脏瓣膜 。 本发明还包括一种用于血管内替换患者心脏瓣膜的方法。 在一些实施例中,该方法包括以下步骤:提供包括锚固件和替换阀件的设备; 在塌陷递送构造中将锚固件血管内输送到心脏瓣膜的附近; 将锚固件扩展到部署的配置; 将所述心脏瓣膜的至少一个瓣膜与所述锚固件接合; 在折叠的输送构造中将替换瓣膜血管内输送到心脏瓣膜的附近; 将更换的阀件扩展到部署的配置; 并且在体内将阀片联接到锚固件以形成血管内取代患者心脏瓣膜的复合两件式装置。

    Powered tissue modification devices and methods
    7.
    发明授权
    Powered tissue modification devices and methods 有权
    动力组织修饰装置及方法

    公开(公告)号:US07938830B2

    公开(公告)日:2011-05-10

    申请号:US11406486

    申请日:2006-04-17

    IPC分类号: A61B17/00

    摘要: A device for modifying tissue in a spine may include: a shaft having a proximal portion and a distal portion, the distal portion having dimensions which allow it to be passed into an epidural space of the spine and between target and non-target tissues; at least one distal force application member extending from the distal portion of the shaft and configured to facilitate application of at least one of anchoring force and tensioning force to the shaft; at least one movable tissue modifying member coupled with the shaft at or near its distal portion; at least one drive member coupled with the at least one tissue modifying member to activate the at least one tissue modifying member; and at least one power transmission member coupled with the at least one drive member to deliver power to the at least one drive member.

    摘要翻译: 用于修改脊柱中的组织的装置可以包括:具有近端部分和远侧部分的轴,所述远端部分具有允许其进入脊柱的硬膜外腔中以及靶和非靶组织之间的尺寸; 至少一个远端力施加构件,其从所述轴的远侧部分延伸并且构造成便于将锚固力和张紧力中的至少一个施加到所述轴; 至少一个可动组织修改构件,其在远端部分处或其附近与所述轴联接; 至少一个驱动构件与所述至少一个组织修改构件联接以激活所述至少一个组织修改构件; 以及与所述至少一个驱动构件联接的至少一个动力传递构件,以向所述至少一个驱动构件输送动力。

    Methods and apparatus for curved stent
    8.
    发明申请
    Methods and apparatus for curved stent 审中-公开
    弯曲支架的方法和装置

    公开(公告)号:US20060184232A1

    公开(公告)日:2006-08-17

    申请号:US11404450

    申请日:2006-04-14

    IPC分类号: A61F2/06

    摘要: The present invention provides a stent comprising a tubular flexible body having a wall with a web structure that is expandable from a contracted delivery configuration to deployed configuration. The web structure comprises a plurality of neighboring, interconnected, web patterns, each web pattern composed of adjoining webs. Each adjoining web comprises a central section interposed between two lateral sections, forming concave or convex configurations. Embodiments of the present invention comprising curvature for tracking tortuous anatomy and reducing localized restoring forces are provided. Methods of using stents in accordance with the present invention are also provided.

    摘要翻译: 本发明提供了一种支架,其包括管状柔性体,其具有壁,所述壁具有可从收缩输送构型扩展到展开构造的腹板结构。 幅材结构包括多个相邻的,互连的幅材图案,每个幅材图案由相邻的幅材组成。 每个邻接的腹板包括插入在两个横向部分之间的中心部分,形成凹形或凸形构造。 提供了包括用于跟踪曲折解剖结构并减少局部恢复力的曲率的本发明的实施例。 还提供了使用根据本发明的支架的方法。