Catheter apparatus with telescoping lumen catheters and its use in methods for treating vasculatures
US9126020B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2013 |
| Grant date | Sep 8, 2015 |
| Priority date | — |
| Expiry date | Mar 15, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/1045
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention provides for methods and catheter apparatus for passing one or more guidewires (via the use of one or more telescoping guidewire lumens) through a chronic total occlusion of a vasculature. The catheter apparatus may include: a catheter shaft having a distal end; one or more telescoping guidewire lumen catheters passing longitudinally through the shaft, wherein the one or more guidewire lumen catheters are capable of telescoping beyond the distal end of the catheter shaft; an expansible distal portion of the shaft; and a retractable sheath covering at least a portion of the expansible distal portion of the shaft, wherein retracting the retractable sheath from the expansible distal portion of the shaft directly activates the expansible distal portion of the shaft causing expansion of the expansible distal portion of the shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.