Occlusion-crossing devices
US12137931B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2021 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | Nov 4, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/3735
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter device for crossing occlusions includes an elongate catheter shaft, a rotatable tip configured to rotate relative to the elongate catheter shaft, a drive shaft, and an OCT imaging sensor. The rotatable tip includes a central guidewire lumen, a distal grinding surface, and a fluted portion. The distal grinding surface can be substantially perpendicular to the guidewire lumen and include divots and sharp points that form pyramidal features, where the sharp points extend distally from the distal grinding surface. The fluted portion can have flutes extending around a circumference of the rotatable tip proximal to the distal grinding surface. The fluted portion may not include the divots and sharp points that form the pyramidal features of the distal grinding surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.