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    • 2. 发明申请
    • FIXATION FOR IMPLANTABLE MEDICAL DEVICES
    • 可植入医疗器械的固定
    • WO2015017234A1
    • 2015-02-05
    • PCT/US2014/047962
    • 2014-07-24
    • MEDTRONIC, INC.
    • KUHN, Jonathan I.CAMPBELL, Michael P.GRUBAC, VladimirRYS, Kenneth D.SWENSON, Richard W.WILSON, Charles L.
    • A61N1/05A61N1/375A61N1/372
    • A61N1/0573A61N1/059A61N1/37205A61N1/37518A61N1/3756
    • A tissue penetrating fixation component for an implantable medical device, the component comprising a base portion (603) and at least one tine portion (630), the base portion defining a longitudinal axis and being configured to be fixedly attached to the medical device such that the longitudinal axis extends approximately parallel to a longitudinal axis of the device. The tine portion comprises a hook segment (631) and a distal segment (632) terminated by a tissue-piercing tip (622). The hook segment is pre-set to extend along a pre-set curvature that encloses an angle of between 135 degrees and 270 degrees, from a proximal end thereof, in proximity to the base portion, to a distal end thereof, and is elastically deformable from the pre-set curvature to an open position. The distal segment is pre-set to extend along a relatively straight line that is approximately tangent to the distal end of the hook segment, from the distal end of the hook segment to the tip. The hook segment (631) tapers from a first width (W1) thereof, in proximity to the proximal end thereof, to a smaller second width (W2) thereof, in proximity to the distal end thereof, and the tissue-piercing tip (622) of the tine portion has a width (W3) that is greater than the second width (W2) of the hook segment.
    • 一种用于可植入医疗装置的组织穿透固定部件,所述部件包括基部(603)和至少一个齿部(630),所述基部限定纵向轴线并且构造成固定地附接到医疗装置,使得 纵向轴线大致平行于装置的纵向轴线延伸。 齿部分包括钩部分(631)和由组织穿刺尖端(622)终止的远端部分(632)。 钩部分被预先设定为沿预定的曲率延伸,该预定曲率包围从基部的近端135度到270度之间的角度到其远端,并且可弹性变形 从预设曲率到打开位置。 远侧段被预先设定为沿着与钩段的远端大致相切的相对直线延伸,从钩段的远端到尖端。 钩部分(631)从其近端的第一宽度(W1)逐渐变细到靠近其远端的较小的第二宽度(W2),并且组织穿刺尖端(622 )的宽度(W3)大于钩部的第二宽度(W2)。