VASCULAR PROSTHESIS

摘要

A vascular prosthesis configured for direct connection to an artery. The vascular prosthesis may include a tube of material other than autologous vascular tissue, having an end formation, which is configured for surgical connection to an opening formed in the artery, and a narrower portion prior to commencement of the end formation. The end formation may have an enlarged chamber adapted to induce a concave section in said blood vessel upon attachment thereto.

主权项

1. A vascular prosthesis comprising:
generally tubular portion that defines a blood-flow lumen and that has a luminal surface that contacts blood flowing through the lumen, and an abluminal surface that does not contact blood flowing through the lumen, wherein the luminal surface comprises a material other than vascular tissue,wherein
the tubular portion has an end formation, the end formation comprising an enlarged chamber having a first diameter and a second diameter transverse to the axis of the generally tubular portion, the first diameter is longer than the second diameter, the first diameter comprising a heel and a toe, a transition between the tubular portion the toe is outwardly initially convex before a final concave portion,and
the enlarged chamber is adapted to induce a concave section in a blood vessel.