Patent ID: 9655752
Date: 2017-05-23
CPC Classifications: A61F,A61L

Claim:
1. A method for placement of a magnesium biodegradable stent for implantation in a surgically-created arteriovenous fistulae comprising: providing a magnesium biodegradable stent comprising a cylinder having a longitudinal length, said stent being fabricated from magnesium foil comprising pure magnesium or magnesium alloys that are biodegradable, wherein the cylinder is configured to be balloon-expandable and comprises a a plurality of circumferential struts; a solid upper ring located at one end of the cylinder, and a solid lower ring located at the other end of the cylinder, said solid rings having different expansion properties than the rest of the stent; optionally, removing or cutting one or more of the solid rings before the stent is implanted; creating an arteriovenous fistulae with an end to side anastomosis between an artery and a vein; inserting the stent into the vein; positioning the stent so a first end of the stent is aligned with an open end of the dissected vein; suturing the vein to the artery; incising the artery across the anastomosis; inserting a balloon via the incision in the artery to the stent; expanding the balloon to expand the stent; and suturing the incision in the artery.