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    • 1. 发明申请
    • Snare with loop made of heat shrinkable shape memory material and method of use thereof
    • 具有由热收缩形状记忆材料制成的圈圈的圈圈及其使用方法
    • US20070088369A1
    • 2007-04-19
    • US11250921
    • 2005-10-14
    • William ShawKristian DiMatteo
    • William ShawKristian DiMatteo
    • A61B17/26
    • A61B17/32056A61B2017/00867A61B2017/00871
    • A tissue snare comprises an elongated member having a distal end and a loop formed of a shape memory material, the loop including a tissue receiving interior opening and being connected to the distal end of the elongated member, properties of the shape memory material being selected so that, when a temperature of the loop exceeds a critical temperature thereof, the loop constricts from an expanded state to a constricted state. A method of treating tissue comprises placing a loop of a snare around a portion of tissue to be treated while the loop is in an expanded configuration, the loop being formed of a shape memory material having a critical temperature so that, when a temperature of the loop is above the critical temperature, the loop transitions from the expanded configuration to a constricted configuration in combination with transitioning, after the loop has been placed around the portion of tissue to be treated, the loop from the expanded configuration to the constricted configuration to tighten the loop around the portion of tissue to be treated.
    • 组织圈套包括具有远端的细长构件和由形状记忆材料形成的环,所述环包括组织容纳内部开口并连接到细长构件的远端,形状记忆材料的特性被选择为 当环路的温度超过其临界温度时,环路从膨胀状态收缩到收缩状态。 一种治疗组织的方法包括将环圈环绕在待处理组织的一部分上,同时循环处于膨胀构型,该环由具有临界温度的形状记忆材料形成,使得当 循环高于临界温度,循环在放置在待处理组织的部分周围,从膨胀构型到收缩构型的环状收缩之后,循环从扩张构型转变为结合转变的收缩构型 围绕待处理组织部分的环。
    • 7. 发明授权
    • Thrombus filter with break-away anchor members
    • 血栓过滤器具有脱离锚定构件
    • US08273099B2
    • 2012-09-25
    • US10615652
    • 2003-07-09
    • Kristian DiMatteo
    • Kristian DiMatteo
    • A61M29/00
    • A61F2/01A61B2017/1205A61B2090/037A61F2002/011A61F2002/016A61F2230/005A61F2230/0067A61F2230/008A61F2250/0071
    • A thrombus filter which can be securely fixed at a selected location in the vascular system of a patient and removed when no longer required. The thrombus filter includes a body portion and a plurality of struts, each strut having a joined end and a free end. The joined end of each strut is fixably attached to the body portion. The struts radiate outwardly from the body member such that the thrombus filter is generally conical in shape. The free end of each strut includes an anchor member. A weakened portion is disposed proximate the free end of each strut. When removal of the thrombus filter is desired, forces are applied to the thrombus filter causing the struts to break at the weakened portions proximate the free ends. When breaking of the struts has been accomplished, the thrombus filter may be freely pulled into the lumen of the retrieval catheter. Once the thrombus filter is disposed inside the lumen of the retrieval catheter, the removal of the thrombus filter from the body of the patient becomes a simple matter of withdrawing the retrieval catheter from the blood vessel.
    • 一种血栓过滤器,其可以牢固地固定在患者的血管系统中的选定位置,并且在不再需要时被去除。 血栓过滤器包括主体部分和多个支柱,每个支柱具有连接端和自由端。 每个支柱的连接端可固定地附接到主体部分。 支柱从身体构件向外辐射,使得血栓过滤器通常为锥形。 每个支柱的自由端包括锚定构件。 弱化部分靠近每个支柱的自由端设置。 当需要去除血栓过滤器时,将力施加到血栓过滤器,导致支柱在靠近自由端的弱化部分断裂。 当已经完成支柱的断裂时,可以将血栓过滤器自由地拉入到取出导管的内腔中。 一旦将血栓过滤器设置在取回导管的内腔内,则从患者体内移除血栓滤器成为从血管中取出取出导管的简单问题。