公开(公告)号：EP1737384B1

公开(公告)日：2009-11-11

申请号：EP05737989.3

申请日：2005-04-18

申请人： Cook, Inc. ,  William Cook Europe ApS

发明人： OSBORNE, Thomas, A. ,  MOLGAARD-NIELSEN, Arne ,  HENDRIKSEN, Per ,  HEMMINGSEN, Allan

IPC分类号： A61F2/01

CPC分类号： A61F2/01 ,  A61F2002/011 ,  A61F2002/016 ,  A61F2002/8483 ,  A61F2230/005 ,  A61F2230/008

摘要： The present invention involves a removable filter for capturing thrombi in a blood vessel. The filter comprises a plurality of primary struts and a plurality of secondary struts. The plurality of primary struts has first ends attached together along a longitudinal axis. Each primary strut has an arcuate segment extending from the first end to an anchoring hook. The primary struts are configured to move between an expanded state for engaging the anchoring hooks with the blood vessel and a collapsed state for filter retrieval or delivery. Each primary strut is configured to cross another primary strut along the longitudinal axis in the collapsed state such that each anchoring hook faces the longitudinal axis away from the blood vessel for filter retrieval or delivery. The plurality of secondary struts has connected ends attached together along the longitudinal axis. The secondary struts extend therefrom to free ends to centralize the filter in the expanded in the blood vessel.

公开(公告)号：EP1802252B1

公开(公告)日：2011-07-20

申请号：EP05798700.0

申请日：2005-09-27

申请人： Cook, Inc.

发明人： HENKRIKSEN, Per ,  MOLGAARD-NIELSON, Arne ,  OSBORNE, Thomas, A.

IPC分类号： A61F2/01

CPC分类号： A61F2/01 ,  A61F2002/016 ,  A61F2230/005 ,  A61F2230/008

摘要： A removable vena cava filter configured for simplified delivery to and retrieval from the vena cava of a patient is disclosed. In one embodiment, the filter comprises a plurality of primary struts (12) having first ends attached together along a longitudinal axis. The primary struts are movable between a closed state during delivery to the blood vessel and an open state when engaged with the blood vessel. Each primary strut comprises a first portion (20), a second portion (23), and a axial bend (25). The first portion extends from the first end and generally is disposed within a first portion plane intersecting the longitudinal axis. The axial bend is oriented along a circumferential direction relative to the longitudinal axis. The second portion generally is disposed within a second portion plane intersecting the first portion plane and terminates at an anchoring hook (A).