| 摘要 |
<p>A visualization marker capable of making a polymer stent clearly visible under X-ray is made of a marker body (1), and the material of the marker body (1) is gold, titanium, or platinum for medical use etc. The metallic marker body (1) is embedded in a prepared hole (3) of the stent from the outer surface of the polymer stent (2) in a manual manner, and at the side of the marker body (1) on the outer surface of the prepared hole (3) is formed a visualization marker (4) that is larger than the diameter of the outer surface of the prepared hole and protrudes from the outer surface of the stent, to form a "T" shaped marker(5) which is secured firmly in the prepared hole. The other side of the "T" shaped marker (5) does not protrude from the inner surface of the stent. After planting the stent, the marker is clamped firmly between the stent and the wall of blood vessel, so the marker can withstand long-term blood vessel movement and blood flow impaction but not fall off. The visualization marker has good visualization effect, and is safe for human body.</p> |
