Split flexible tube biasing and directional atherectomy device and method
US8162964B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 2009 |
| Grant date | Apr 24, 2012 |
| Priority date | — |
| Expiry date | Aug 6, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/320733
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention provides a rotational atherectomy system, device and method having a flexible, elongated, rotatable catheter tube that is split into two elements, a biasing element and a cutting element, distally and wherein the biasing element and cutting element are capable of forming a first and retracted position for insertion into a lumen and a second and expanded position for ablation. The biasing element is biased in the expanded position, thereby placing a biasing force against the lumen wall and pressing the cutting element against the opposite side of the lumen wall for directional cutting and/or grinding, either by rotation, axial translation, vibration or a combination thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.