Device for restricting blood flow to aneurysms

A system for use with a microcatheter and for treating a wide-neck vascular aneurysm, the system comprising:

• a non-occlusive device comprising:
• a coilable section configured, when deployed from the microcatheter within the wide-neck vascular aneurysm, to become coiled into a coil shaped so as to define a sequence of concentric loops, wherein the coil is configured to bridge a neck of the wide-neck vascular aneurysm so as to at least partially cover an orifice of the wide-neck vascular aneurysm, when in use;
• and
• a docking section configured to be deployed from the microcatheter within the wide-neck vascular aneurysm, wherein the docking section extends distally from an outermost one of the concentric loops of the coil and is shaped so as to define one or more concentric loops, wherein an outer diameter of the one or more concentric loops of the docking station is less than an outer diameter of the concentric loops of the coil, wherein the docking section is configured to, when in use, perform one or more functions selected from the group consisting of:
• anchoring the device within the wide-neck vascular aneurysm, stabilizing the device within the wide-neck vascular aneurysm, assisting with positioning of the device within the wide-neck vascular aneurysm, and intertwining embolic material delivered to the wide-neck vascular aneurysm;
• and
• a pusher wire that is disconnectably coupled to a proximal end of the coil of the coilable section such that the pusher wire is oriented essentially parallel to a central longitudinal axis of the sequence of concentric loops when the coilable section is deployed from the microcatheter within the wide-neck vascular aneurysm.

A method for treating a wide-neck vascular aneurysm, the method comprising:

• deploying a docking section of a non-occlusive device from a microcatheter within the wide-neck vascular aneurysm such that the docking section is shaped so as to define one or more concentric loops and such that the docking section performs one or more functions selected from the group consisting of:
• anchoring the device within the aneurysm, stabilizing the device within the aneurysm, assisting with positioning of the device within the wide-neck vascular aneurysm, and intertwining embolic material delivered to the wide-neck vascular aneurysm;
• and
• deploying a coilable section of the non-occlusive device from the microcatheter within the wide-neck vascular aneurysm, such that the coilable section becomes coiled into a coil that bridges a neck of the aneurysm so as to at least partially cover an orifice of the wide-neck vascular aneurysm, the coil shaped so as to define a sequence of concentric loops,
• wherein the docking section extends distally from an outermost one of the concentric loops of the coil, and wherein an outer diameter of the one or more concentric loops of the docking station is less than an outer diameter of the concentric loops of the coil.