Expandable atherectomy device
US10251667B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2015 |
| Grant date | Apr 9, 2019 |
| Priority date | — |
| Expiry date | Apr 26, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2217/005
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device and method for removing atheroma. An expandable atherectomy device comprises a rotatably motor-driven flexible hollow shaft that is slidable over a guidewire introducible through a flexible catheter tube and is coaxial with the longitudinal axis of the guidewire, an expandable cutting unit connected to a distal end of the hollow shaft, and an actuator which is operable to induce selective expansion of the cutting unit. The cutting unit, when expanded, is eccentrically rotatable about the longitudinal axis to cut and remove atheromous material from a blood vessel. In one embodiment, the method also includes the step of drilling an occlusion present in the lumen of a blood vessel by a drill unit connected to the cutting unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.