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 tack, comprising:
a self expandable tubular body, having a proximal end, a distal end and a central lumen extending therethrough, the body comprising a plurality of metal struts and having a length of no more than about 15 mm; wherein the tubular body is radially expandable through a range of diameters which range exceeds 3 mm and the change in radial force upon expansion is no more than about 2.5 N at any point in the range.