Millions of people have a tiny meta mesh tube inserted into their coronary arteries each year to prop it open so that there is uninterrupted blood flow to the cardiac tissues. However, the blood vessel can harden over this metal tube in a few months, and cause problems. The metal blocks X-ray and MRI scan s, and it can also, in rare cases, lead to clot information.
Abbot has now developed a stent made of a biodegradable material (poly-lactic acid) which dissolves away in a couple of years, while the blood vessel retains its shape. Patient will have before long have a choice - have permanent metal stents or biodegradable stents which dissolve with time.
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