From: Analysis of trends and prospects regarding stents for human blood vessels
| Classification | Bare Metal Stents | Drug Eluting Stents | Bioresorbable Stents | Coronary Artery Stents |
|---|---|---|---|---|
| Early development | 0 | 6 | 6 | 7 |
| Pre-Clinical | 0 | 7 | 5 | 1 |
| Clinical | 9 | 25 | 11 | 3 |
| In Approval Process | 2 | 4 | 3 | 2 |
| Sum | 11 | 42 | 25 | 13 |