Atherectomy devices and methods
US11759229B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2023 |
| Grant date | Sep 19, 2023 |
| Priority date | — |
| Expiry date | Apr 10, 2043 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/320766
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Rotational atherectomy devices and systems can remove or reduce stenotic lesions in blood vessels by rotating an abrasive element within the vessel. The abrasive element can be attached to a distal portion of an elongate flexible drive shaft that extends from a handle assembly. In particular embodiments, the handle assembly includes a compressed gas driven turbine member that drives rotation of the drive shaft. The turbine member can be rotatably attached to a carriage that is longitudinally translatable in relation to a housing of the handle assembly. The handle assembly can include a latch mechanism that when actuated allows the carriage to translate to a proximal-most position. While the carriage is in the proximal-most position, an open pathway is created so that a guidewire can be slidably passed through the handle assembly and a lumen of the drive shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.