VASCULAR FILTER
    5.
    发明申请
    VASCULAR FILTER 有权
    血管滤过器

    公开(公告)号:US20120245620A1

    公开(公告)日:2012-09-27

    申请号:US13426933

    申请日:2012-03-22

    IPC分类号: A61F2/01

    摘要: An inferior vena cava filter (340) for use in the inferior vena cava (4) to capture thrombus (8) passing through the inferior vena cava (4) towards the heart and lungs to prevent pulmonary embolism comprises a proximal support hoop (302), a distal support hoop (312) and a plurality of support struts (303) extending between the proximal support hoop (302) and the distal support hoop (312). The filter (340) also comprises a plurality of capture arms (121) which are movable from a capturing configuration to an open configuration. The capture arms (121) are biased towards the open configuration. A biodegradable suture holds the capture arms (121) in the capturing configuration.

    摘要翻译: 用于下腔静脉(4)中的下腔静脉过滤器(340)用于捕获通过下腔静脉(4)朝向心肺的血栓(8)以防止肺栓塞,包括近端支撑箍(302) ,远侧支撑箍(312)和在所述近端支撑箍(302)和所述远侧支撑箍(312)之间延伸的多个支撑支柱(303)。 过滤器(340)还包括可从捕获构型移动到打开构型的多个捕获臂(121)。 捕获臂(121)被朝向打开构型偏置。 可生物降解的缝合线将捕获臂(121)保持在捕获构型中。

    Embolic protection device
    7.
    发明授权
    Embolic protection device 有权
    栓塞保护装置

    公开(公告)号:US08038697B2

    公开(公告)日:2011-10-18

    申请号:US11529525

    申请日:2006-09-29

    IPC分类号: A61M29/00

    摘要: A collapsible filter element for a transcatheter embolic protection device, the filter element comprises a collapsible filter body of polymeric material which is movable between a collapsed stored position for movement through a vascular system and an expanded position for extension across a blood vessel such that blood passing through the blood vessel is delivered through the filer element. A proximal inlet portion of the filter body has one or more inlet openings sized to allow blood and embolic material enter the filter body. A distal outlet portion of the filter body has a plurality of generally circular outlet openings sized to allow through-passage of blood, but to retain embolic material within the filter body. The distal outlet portion of the filter body in the region of the outlet openings has means for reducing shear stress on blood passing through the outlet openings. The shear stress reducing means includes lead-in and lead-out radiussed portions of the filter body leading to the outlet holes. The porosity of the distal portion of the filter body decreases towards the distal end. A blind portion extends for at least 5% of the length of the body. Preferably there are between 200 and 300 outlet opening with an average diameter of approximately 150 microns.

    摘要翻译: 一种用于经导管栓塞保护装置的可折叠过滤器元件,所述过滤元件包括聚合材料的可折叠过滤体,其可在通过血管系统移动的折叠存储位置和用于延伸穿过血管的扩张位置之间移动,使得血液通过 通过血管通过滤器元件输送。 过滤器本体的近端入口部分具有一个或多个入口开口,其大小允许血液和栓塞物质进入过滤器主体。 过滤器主体的远端出口部分具有多个大致圆形的出口开口,其尺寸允许血液通过,但是将栓塞材料保持在过滤器本体内。 在出口开口区域中的过滤器本体的远端出口部分具有减少通过出口开口的血液的剪切应力的装置。 剪切应力减小装置包括通向出口孔的过滤体的引入和引出半径部分。 过滤器主体的远端部分的孔隙朝向远端减小。 盲部延伸至身体长度的至少5%。 优选地,具有200至300个出口开口,平均直径约为150微米。

    VASCULAR FILTER DEVICE
    8.
    发明申请
    VASCULAR FILTER DEVICE 有权
    VASCULAR过滤器

    公开(公告)号:US20100185230A1

    公开(公告)日:2010-07-22

    申请号:US12688616

    申请日:2010-01-15

    IPC分类号: A61B17/22

    摘要: A vascular filter device comprises a support; and a filter comprising one or more filter elements configured to capture thrombus passing through a blood vessel. A holder holds the filter in a closed filtering state and releases to convert the filter to an open state after a period of time. The filter is adapted to retain thrombus after said conversion. In one case the filter elements are arranged to remain in a closed state after release by the holder, because they are blocked by a retained clot from opening fully, and the filter elements are biased to the open state with a bias level which is counter balanced by force exerted by a retained clot under action of blood flow.

    摘要翻译: 血管过滤装置包括支架; 以及包括一个或多个过滤元件的过滤器,所述过滤元件被配置为捕获通过血管的血栓。 持有者将过滤器保持在封闭过滤状态,并释放以在一段时间后将过滤器转换成打开状态。 所述过滤器适于在所述转化后保留血栓。 在一种情况下,过滤器元件布置成在保持器释放之后保持处于关闭状态,因为它们被保留的凝块阻塞以完全打开,并且过滤器元件被偏置到打开状态,其中偏置电平是平衡的 由血液作用下由保留的凝块施加的力。

    Embolic protection device
    9.
    发明授权

    公开(公告)号:US07510565B2

    公开(公告)日:2009-03-31

    申请号:US11325480

    申请日:2006-01-05

    IPC分类号: A61M29/00

    摘要: An embolic protection device has a collapsible filter element (105) mounted on a carrier such as a guidewire (101). The filter element (105) collapses into the outer end of a catheter (118) for deployment and retrieval through a vascular system of a patient. The filter element (105) has a collapsible filter body with a proximal inlet end and a distal outlet end. The proximal inlet end has inlet openings sized to allow blood and embolic material enter the filter body. The outlet end has outlet openings which allow through passage of blood but retain embolic material within the filter body. After use, the catheter (118) is movable along the guidewire (101) to engage the proximal end of the filter element and close the inlet openings before sliding over the filter element from the proximal end to the distal end to progressively collapse the filter body on the guidewire (101) for retrieval. The filter element (105) may conveniently be mounted on a tubular sleeve (104) which is slidable and rotatable on the guidewire (101) between spaced-apart stops (106, 120) on the guidewire (101) which allows some manipulation of the guidewire independently of the filter when the filter is in use.

    EMBOLIC PROTECTION DEVICE
    10.
    发明申请
    EMBOLIC PROTECTION DEVICE 审中-公开
    嵌入式保护装置

    公开(公告)号:US20080188884A1

    公开(公告)日:2008-08-07

    申请号:US11613480

    申请日:2006-12-20

    IPC分类号: A61F2/01 A61M29/00

    摘要: An embolic protection device has a collapsible filter element (105) mounted on a carrier such as a guidewire (101). The filter element (105) collapses into the outer end of a catheter (118) for deployment and retrieval through a vascular system of a patient. The filter element (105) has a collapsible filter body with a proximal inlet end and a distal outlet end. The proximal inlet end has inlet openings sized to allow blood and embolic material enter the filter body. The outlet end has outlet openings which allow through passage of blood but retain embolic material within the filter body. After use, the catheter (118) is movable along the guidewire (101) to engage the proximal end of the filter element and close the inlet openings before sliding over the filter element from the proximal end to the distal end to progressively collapse the filter body on the guidewire (101) for retrieval. The filter element (105) may conveniently be mounted on a tubular sleeve (104) which is slidable and rotatable on the guidewire (101) between spaced-apart stops (106, 120) on the guidewire (101) which allows some manipulation of the guidewire independently of the filter when the filter is in use.

    摘要翻译: 栓塞保护装置具有安装在诸如导丝(101)的载体上的可折叠过滤元件(105)。 过滤元件(105)塌陷进入导管(118)的外端,用于通过患者的血管系统进行展开和回收。 过滤元件(105)具有可折叠的过滤器本体,其具有近端入口端和远端出口端。 近端入口端具有入口开口,其尺寸允许血液和栓塞物质进入过滤体。 出口端具有允许血液通过但保持栓塞材料在过滤器主体内的出口。 在使用之后,导管(118)可沿导丝(101)移动以接合过滤器元件的近端并且在从过滤元件从近端滑动到远端之前关闭入口开口,以使过滤体逐渐收缩 在导丝(101)上进行检索。 过滤元件(105)可以方便地安装在管状套筒(104)上,管状套筒(104)可在引导线(101)上的间隔开的止动件(106,120)之间在导丝(101)上滑动和旋转, 当过滤器使用时,导丝与过滤器无关。