Reentry catheter for crossing a vascular occlusion
US11154312B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 2020 |
| Grant date | Oct 26, 2021 |
| Priority date | — |
| Expiry date | Apr 2, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/09175
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A reentry catheter for crossing a vascular occlusion includes an elongate flexible tubular body, having a proximal end, a distal end and at least one lumen extending there through. A reentry zone on the tubular body includes at least two and preferably three sets of opposing pairs of axially spaced exit apertures in communication with the lumen. The apertures are rotationally offset from each other and aligned in a spiral pattern around the tubular body. Each aperture may be defined within a radiopaque reinforcing ring embedded within the tubular body. A first set of opposing pairs of reinforcing rings may be separated axially from a second set of opposing pairs of reinforcing rings and may be connected by a flexible hinge section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.