Catheter assembly with plaque cutting balloon
US7303572B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2005 |
| Grant date | Dec 4, 2007 |
| Priority date | — |
| Expiry date | Dec 28, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/109
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A balloon catheter assembly comprises an elongate catheter shaft having a proximal portion and a distal portion, and an inflatable balloon secured to the shaft distal portion. A plurality of cutters are arranged along an outer surface of the balloon. The cutters are shielded by folds of the balloon when the balloon is uninflated, and are arranged and configured to facilitate breakdown of a vascular restriction when said balloon is inflated. Preferably, the cutters are arranged in at least three generally parallel longitudinal rows along the balloon outer surface, and there are at least three longitudinally-aligned cutters in each row. Preferably, the cutters are formed of the same or a similar base composition as the balloon, and are bonded to the balloon outer surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.