| into the site of the blockage | 5 | location |
| according to claim | 2 | other |
| catheter → have → stent | 10 |
| catheter → include → stent | 4 |
| catheter → contain → stent | 3 |
| catheter → call → stent | 3 |
| negative | neutral | positive |
| 0.056 | 0.893 | 0.050 |
| Raw frequency | 20 |
| Normalized frequency | 0.315 |
| Modifier score | 0.500 |
| Perplexity | 61.444 |