Vaso-occlusive apparatuses, including implants, and methods of using them to treat aneurysms. The vaso-occlusive implants described herein include one or more soft and expandable braided member coupled to a pushable member such as a coil that maybe inserted and retrieved from within an aneurism using a delivery catheter as well as a friction element between the soft braided member and the coil. The friction element allows the relatively soft and elongate implant to be pushed out of a cannula without binding up within the cannula.

An occluder support and a preparation method thereof are disclosed. The occluder support includes a mesh body and a trailing structure connected to the mesh body. The trailing structure is inwardly folded into a blunt shape.

A medical device includes a first end, a second end, and a central segment proximate a middle of the medical device and about which the medical device is symmetrical. The medical device also includes a pair of inner reverse bends spaced from the central segment by a first body plane extending from the central segment to the pair of inner reverse bends in a first longitudinal direction, and a pair of outer reverse bends. The outer reverse bends are spaced from the pair of inner reverse bends by a second body plane extending from the pair of inner reverse bends to the pair of outer reverse bends in a second, opposite longitudinal direction, and the outer reverse bends are spaced from the first and second ends of the medical device by a third body plane extending in the first direction from the outer reverse bends to the first and second ends.

Heart valve replacement often involves complications associated with paravalvular leaks. Vascular plug and occlusive devices, as well as heart valves particularly beneficial in treating the phenomenon of paravalvular leaks are described to address this issue.

An occlusive device, occlusive device delivery system, method of using, and method of delivering an occlusive device, and method of making an occlusive device to treat various intravascular conditions is described.

Disclosed is an intravascular indwelling stent that include a stent main body and a polymer film covering the stent main body. Through-holes are formed in the polymer film. The through-holes connect an inside and an outside of a cylinder of the intravascular indwelling stent to each other and each have an opening size of 0.02 mm or more and 0.2 mm or less. An opening occupancy, which is the ratio of the opening area of all the through-holes included in a unit area of the outer surface of the polymer film to the unit area, is 25% or more and 41% or less. A surface density of boundary, which is the ratio of the length of opening edges of all the through-holes included in a unit area of the outer surface of the polymer film to the unit area, is 9.5/mm or more and 30/mm or less.

The invention relates to the treatment of aneurysms, and more particularly to intravascular devices and methods for the occlusion of an aneurysm. The device includes a first portion having an expandable and compressible mesh having dimensions for insertion into and expansion against the wall of an aneurysm and a second disk portion having a flexible, collapsible mesh operatively connected to an outer surface of the first portion and having dimensions for covering an outside of the neck opening. The combination of the first portion and second disk portion have a combined resilient flexibility to effectively bias the second disk portion against the neck opening in a substantially flat manner when the first portion is engaged within the aneurysm.

Implants can be used as flow diverters for treating aneurysms. Implants can include a stabilizing frame for anchoring the implant and an occluding element for diverting blood flow from the aneurysm neck. The stabilizing frame can have two parts, the first part sized to anchor within the sac of the aneurysm and the exterior part sized to anchor against a region of the blood vessel wall adjacent the aneurysm neck. The occluding element can be attached to the interior frame and positioned to occlude the aneurysm neck. The implant can have a central node that can be positioned near the center of the aneurysm neck at which the interior frame is attached to the exterior frame and from which the interior frame and the exterior frame extend.

A device and method for establishing retrograde blood flow during recanalization of a vessel having a targeted blockage. While in a collapsed state an occluding component is introduced distally intravascularly traversing the targeted blockage to its distal side. Then, the occluding component transitions to an expanded state having an enlarged diameter forming a seal with an internal wall of the vessel prohibiting anterograde blood flow beyond the expanded occluding component. Retrograde blood flow is thereby established in a region of the vessel bound at one end by the occluding component and at an opposite end by the targeted blockage by dispensing a flushing fluid into the region of the vessel.

Embodiments of the present invention provide an improved vascular occlusion device for occlusion of a passageway, cavity, or the like. According to one embodiment, a medical device for occluding a left atrial appendage is provided. The medical device includes a first portion having at least one plane of occlusion that is configured to be positioned outside of the left atrial appendage, and a second portion having at least one plane of occlusion that is configured to be at least partially positioned within a cavity defined by the left atrial appendage.