Bare-metal stent

Bare-metal stent is a stent without a coating or covering (as used in covered stents drug-eluting stents).wikipedia
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Stent

stentsstentingstent graft
Bare-metal stent is a stent without a coating or covering (as used in covered stents drug-eluting stents).

Drug-eluting stent

Drug-eluting stentsdrug eluting stentDrug Eluting Stents
Bare-metal stent is a stent without a coating or covering (as used in covered stents drug-eluting stents).
Drug-eluting stents in current clinical use were approved by the FDA after clinical trials showed they were statistically superior to bare-metal stents for the treatment of native coronary artery narrowings, having lower rates of major adverse cardiac events (usually defined as a composite clinical endpoint of death + myocardial infarction + repeat intervention because of restenosis).

OrbusNeich

Orbus began as a medical device company and developed the R stent, a bare-metal stent with a novel dual helix design.

Restenosis

coronary restenosisre-stenosisrestenotic
Drug-eluting stents are often preferred over bare-metal stents because the latter carry a higher risk of restenosis, the growth of tissue into the stent resulting in vessel narrowing.
A 2010 study in India comparing coronary drug-eluting stents (DES) with coronary bare-metal stents (BMS) reported that restenosis developed in 23.1% of DES patients vs 48.8% in BMS patients, and female sex was found to be a statistically significant risk factor for developing restenosis.

Gastrointestinal tract

intestinegastrointestinaldigestive tract
The first stents used in gastrointestinal conditions of the esophagus, gastroduodenum, biliary ducts, and colon were plastic; bare metal stents were first brought into the clinic in the 1990s.

Genous

dual-therapy stentGenous Bio-engineered R stent

Abbott Laboratories

AbbottAbbott LabsAbbot Laboratories

Boston Scientific

Boston Scientific CorporationBoston Scientific - MiamiBoston Scientific Ltd

Angioplasty

balloon angioplastyangioplastiespercutaneous transluminal angioplasty