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A bioresorbable stent is a tube-like device that is used to open and widen clogged heart arteries and then dissolves or is absorbed by the body. It is made from a material that can release a drug to prevent scar tissue growth. It can also restore normal vessel function and avoid long-term complications of metal stents. [1] [2]
[15] [16] The balloon avoids the need for a double layer of metal which is used when an in-stent restenosis is treated with another stent within the original stent. Additionally, DCB treatment does not leave an implant in the body and is designed for faster drug delivery. Alternative treatments include brachytherapy, or intracoronary radiation ...
Coronary stents are placed during a coronary angioplasty.The most common use for coronary stents is in the coronary arteries, into which a bare-metal stent, a drug-eluting stent, a bioabsorbable stent, a dual-therapy stent (combination of both drug and bioengineered stent), or occasionally a covered stent is inserted.
When a stent is used, the stent tube mesh is initially collapsed onto the balloon component of the catheter. In this collapsed state, it is small enough to be passed though relatively narrow peripheral arteries and then inflated by the underlying balloon and pressed firmly against the diseased coronary artery wall.
Bioresorbable (also called biodegradable or bioabsorbable) metals are metals or their alloys that degrade safely within the body. [1] The primary metals in this category are magnesium-based [2] [3] and iron-based alloys, [4] although recently zinc has also been investigated.
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