Endovascular implant

摘要

A plaque tack can be used for holding plaque against blood vessel walls such as in treating atherosclerotic occlusive disease. The plaque tack can be formed as a thin, annular band for holding loose plaque under a spring or other expansion force against a blood vessel wall. Focal elevating elements and/or other features, such as anchors, can be used to exert a holding force on a plaque position while minimizing the amount of material surface area in contact with the plaque or blood vessel wall and reducing the potential of friction with the endoluminal surface. This approach offers clinicians the ability to perform a minimally invasive post-angioplasty treatment and produce a stent-like result without using a stent.

主权项

1. An intravascular implant having a tubular body defining a longitudinal axis and comprising a plurality of struts and open areas in between struts, the struts forming at least two circumferential rings spaced apart along the longitudinal axis and bridge members connecting the circumferential rings, the bridge members not being connected to one another, wherein the open area between the at least two circumferential rings and bridge members connecting the circumferential rings is open area bounded by struts, the struts defining a radially outwardly facing surface; and
wherein at least one of the bridge members includes a first V bend, a second V bend, and an eyelet, the first and second V bends positioned on opposite sides of the eyelet; and wherein when expanded the sum of the radially outwardly facing surface of the struts is no more than about 12% of the sum of all of the open area bounded by struts.