公开(公告)号：EP2895088A2

公开(公告)日：2015-07-22

申请号：EP13837325.3

申请日：2013-07-02

申请人： Cardiovascular Systems, Inc.

发明人： CAMBRONNE, Matthew David

IPC分类号： A61B17/3207 ,  A61M25/09

CPC分类号： A61B17/320758 ,  A61B17/3207 ,  A61B2017/320004 ,  A61B2017/320032 ,  A61B2017/320766 ,  A61M25/09 ,  A61M2025/09083 ,  A61M2025/09183

摘要： The invention provides a rotational atherectomy device having, in various embodiments, a flexible, elongated, rotatable drive shaft with a system of eccentric abrading heads attached thereto. At least part of the eccentric enlarged abrading heads in the system have a tissue removing surface—the abrading heads may be at least partially hollow. Preferably the abrading heads have centers of mass spaced radially from the rotational axis of the drive shaft, facilitating the ability of the system of abrading heads to work together to open the stenotic lesion to a diameter larger than the outer resting diameter of the abrading heads when operated at high speeds. Therefore, certain embodiments comprise a system having unbalanced centers of mass to not only stimulate greater rotational diameters but also arranged in a manner whereby a debris-removing augering effect occurs. Other embodiments may comprise systems having abrading heads with balanced centers of mass.

公开(公告)号：EP2895088B1

公开(公告)日：2019-05-15

申请号：EP13837325.3

申请日：2013-07-02

申请人： Cardiovascular Systems, Inc.

发明人： CAMBRONNE, Matthew David

IPC分类号： A61B17/3207 ,  A61M25/09