Bare-metal stent

Bare-metal stent

Bare-metal stent : A vascular stent without a coating (as used in drug-eluting stents).

BMS are mesh-like tubes of thin wire.

The first stents licenced for use in cardiac arteries were bare metal - Often 316L stainless steel.

More recent ('2nd generation') stents use cobalt chromium alloy. See drug-eluting stent#Design.

Examples

Stainless steel : (J&J, Cordis) BxVelocity, (Medtronic) Express2, R Stent, Matrix Stent (Sahajanand Medical technologies)

Cobalt-chromium alloy : (Medtronic) Driver, (Guidant, Abbott) ML Vision, Coronnium (Sahajanand Medical technologies)

References

External links

* [http://biomed.brown.edu/Courses/BI108/BI108_2004_Groups/Group05/Drug%20Eluting%20Stents/bare_metal_stents.htm Brown U. BMS. Has animation on stent placement]
* [http://www.freepatentsonline.com/5891191.html Cobalt-chromium-molybdenum alloys for stents]

ee also

* coronary stent
* angioplasty
* Percutaneous coronary intervention


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