专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06540767B1 Recoilable thrombosis filtering device and method 失效
标题翻译：可回收血栓形成过滤装置及方法
公开(公告)号：US06540767B1
公开(公告)日：2003-04-01
申请号：US09500209
申请日：2000-02-08
申请人： Steven E. Walak , Bernedette Proskoczilo , Kristian DiMatteo , Robert B. DeVries
发明人： Steven E. Walak , Bernedette Proskoczilo , Kristian DiMatteo , Robert B. DeVries
IPC分类号： A61N2900
CPC分类号： A61F2/01 , A61F2002/016 , A61F2002/018 , A61F2210/0028 , A61F2210/0038 , A61F2230/005 , A61F2230/0067 , A61F2230/008
摘要： A thrombosis filter which can be securely affixed at a selected location in the vascular system of a patient and removed when no longer required, and method for removing the thrombosis filter. An embodiment of the thrombosis filter includes a plurality of struts made from a shape memory alloy which changes shape at a temperature other than body temperature, thereby allowing removal of the filter.
摘要翻译：一种血栓形成过滤器，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，以及用于去除血栓形成过滤器的方法。血栓形成过滤器的一个实施例包括由形状记忆合金制成的多个支柱，其在体温以外的温度下改变形状，从而允许去除过滤器。

2. 发明授权

US06872217B2 Recoilable thrombosis filtering device and method 失效
标题翻译：可回收血栓形成过滤装置及方法
公开(公告)号：US06872217B2
公开(公告)日：2005-03-29
申请号：US10350235
申请日：2003-01-23
申请人： Steven E. Walak , Bernedette Proskoczilo , Kristian DiMatteo , Robert B. DeVries
发明人： Steven E. Walak , Bernedette Proskoczilo , Kristian DiMatteo , Robert B. DeVries
IPC分类号： A61B17/00 , A61F2/00 , A61F2/01 , A61L33/00 , A61M1/02
CPC分类号： A61F2/01 , A61F2002/016 , A61F2002/018 , A61F2210/0028 , A61F2210/0038 , A61F2230/005 , A61F2230/0067 , A61F2230/008
摘要： A thrombosis filter which can be securely affixed at a selected location in the vascular system of a patient and removed when no longer required. An embodiment of the thrombosis filter includes a plurality of struts formed of a shape memory material. A change in temperature can cause the struts to extend and engage a wall of a blood vessel.
摘要翻译：一种血栓形成过滤器，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。血栓形成过滤器的一个实施例包括由形状记忆材料形成的多个支柱。温度的变化可导致支柱延伸并与血管的壁接合。

3. 发明申请

US20050131452A1 Recoilable thrombosis filtering device and method 审中-公开
标题翻译：可回收血栓形成过滤装置及方法
公开(公告)号：US20050131452A1
公开(公告)日：2005-06-16
申请号：US11043835
申请日：2005-01-26
申请人： Steven Walak , Bernedette Proskoczilo , Kristian DiMatteo , Robert DeVries
发明人： Steven Walak , Bernedette Proskoczilo , Kristian DiMatteo , Robert DeVries
IPC分类号： A61B17/00 , A61F2/00 , A61F2/01 , A61L33/00 , A61M1/02 , A61M29/00
CPC分类号： A61F2/01 , A61F2002/016 , A61F2002/018 , A61F2210/0028 , A61F2210/0038 , A61F2230/005 , A61F2230/0067 , A61F2230/008
摘要： A thrombosis filter which can be securely affixed at a selected location in the vascular system of a patient and removed when no longer required. A first embodiment of the thrombosis filter includes a plurality of struts having a first grouping and a second grouping. The first grouping of struts and the second grouping of struts radiate in opposite directions. The free ends of the struts include anchoring elements which anchor into the walls of a blood vessel. At least one grouping of struts is comprised of a shape memory material. When these struts are at body temperature, their free ends engage the wall of the blood vessel. When the temperature of the shape memory alloy struts is selectively varied from body temperature, the struts retract into the body portion of the thrombosis filter. A second embodiment of the thrombosis filter includes a generally cylindrical anchoring portion, and a generally conical filtering portion, the filtering portion includes a plurality of elongated strands interwoven to create a pattern of cells. These strands extend beyond the filtering portion to comprise the anchoring portion. These strands are made of a shape memory material. At body temperature, the thrombus filter takes on an expanded shape. At a temperature other than body temperature, the thrombus filter assumes a contracted shape. When the thrombus filter assumes a contracted shape, the anchoring portion retracts away from the walls of the blood vessel. A method is also disclosed for removing the thrombus filter from a blood vessel. The method comprises changing the temperature of the thrombus filter so that it assumes a retracted shape then pulling the thrombus filter inside the lumen of a retrieval catheter.
摘要翻译：一种血栓形成过滤器，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。血栓形成过滤器的第一实施例包括具有第一分组和第二分组的多个支柱。第一组支柱和第二组支柱沿相反方向辐射。支柱的自由端包括固定在血管壁上的锚定元件。至少一组支柱由形状记忆材料构成。当这些支柱处于体温时，其自由端接合血管的壁。当形状记忆合金支柱的温度从体温选择性地变化时，支柱缩回到血栓形成过滤器的主体部分。血栓形成过滤器的第二实施例包括大致圆柱形的锚固部分和大致锥形的过滤部分，过滤部分包括交织以形成细胞图案的多个细长股线。这些股线延伸超过过滤部分以包括锚固部分。这些股线由形状记忆材料制成。在体温下，血栓过滤器呈现膨胀形状。在体温以外的温度下，血栓过滤器呈现收缩形状。当血栓过滤器呈现收缩形状时，锚定部分从血管的壁缩回。还公开了从血管中去除血栓滤过器的方法。该方法包括改变血栓过滤器的温度，使其呈现缩回形状，然后将血栓过滤器拉回到取出导管的内腔内。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式