Coronary stenting with bioabsorbable materials? Greek to me

Stents dissolve. Stents are traditionally made of metal alloys. Newer devices are being made of materials that may be absorbed by the body after an interval long enough for the healing process to no longer need the structural support of traditional metal stents.
Emerging technology. Absorbable materials are attractive to surgeons since they leave nothing behind, however this is a new technology and will have a lot of kinks to work out.