Catheter systems with a blocking mechanism and methods for bypassing an occlusion in a blood vessel
US9320874B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 15, 2013 |
| Grant date | Apr 26, 2016 |
| Priority date | — |
| Expiry date | Mar 10, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/09125
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter for use with a subintimal reentry guidewire includes a proximal portion having a proximal guidewire lumen and a proximal inflation lumen, a distal portion having a distal guidewire lumen and a distal inflation lumen, and an intermediate portion disposed between the proximal portion and the distal portion and having an intermediate inflation lumen in fluid communication with the proximal and distal inflation lumens. The intermediate portion is devoid of a guidewire lumen. A blocking mechanism disposed in the distal portion of the catheter is transformable from a non-blocking configuration in which a guidewire is free to translate through the distal guidewire lumen and a blocking configuration in which a guidewire disposed in the distal guidewire lumen is prevented from translating through the distal guidewire lumen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.