Devices and methods for crossing a chronic total occlusion
US7763012B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2003 |
| Grant date | Jul 27, 2010 |
| Priority date | — |
| Expiry date | Dec 9, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/1079
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter comprises an elongate tubular member having a proximal end and a distal end, and a deflectable tip at the distal end of the elongate tubular member. The deflectable tip comprises a first helical coil having a first diameter and a second helical coil having a second diameter, the first diameter being larger than the second diameter. The first and second helical coils are arranged in the manner of a double helix. When viewed in cross-section, the first helical coil and the second helical coil are aligned at a first point on a circumference of each coil and misaligned at a second point on the circumference of each coil, where the second point is approximately 180 degrees from the first point. In certain embodiments the catheter further includes a dilatation balloon. Methods of use for crossing a chronic total occlusion are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.