| facilitate invagination | 0.45 |
| remove atheromatous and… | 0.36 |
| open the blood vessel | 0.25 |
| improve blood flow | 0.25 |
| say elongated flexible … | 0.25 |
| constructed in accordan… | 0.68 |
| set forth in claim | 0.63 |
| intended for intravascu… | 0.27 |
| used to remove material | 0.25 |