Devices and methods for removal of acute blockages from blood vessels
US11103264B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2019 |
| Grant date | Aug 31, 2021 |
| Priority date | — |
| Expiry date | Jul 9, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/3966
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A clot retrieval device with an elongate shaft and an expandable section, the expandable section having a framework of interconnected strut elements distal of the elongate shaft, the strut elements forming an outer expandable body and an inner expandable body. At least a portion of the strut elements include a first coating of radiopaque material defining a plurality of micro-columns, wherein each micro-column includes a length extending between a first end coupled to one of the plurality of strut elements and a second free end opposite the first end, the length of each micro-column is longer than a width of each micro-column. The second free end is capable of moving further apart when a convex bend is applied to the respective strut element during use. Also including a second coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.