Lesion crossing shock wave catheter
US12274460B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2020 |
| Grant date | Apr 15, 2025 |
| Priority date | — |
| Expiry date | Nov 19, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/22094
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention provides a catheter for treating occlusions in blood vessels. The catheter includes at least one electrode pair positioned inside of a flexible angioplasty balloon at the distal end of the catheter. In some designs, the electrode pairs are arranged in a low-profile or coplanar configuration, reducing the diameter of the distal end of the device and permitting treatment of tight and hard-to-cross occlusions. The flexible angioplasty balloon has an extremely low profile and does need to be folded before insertion of the catheter into the cardiovascular system. During treatment, the balloon can be expanded a relatively small amount sufficient to immerse the electrode pairs in a conductive fluid before generating shock waves across the electrodes to treat the occlusion. The balloon can be made of material having elastomeric properties such that it returns to its original low profile configuration when it is deflated following treatment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.