Methods and systems for treatment of acute ischemic stroke
US10722251B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2018 |
| Grant date | Jul 28, 2020 |
| Priority date | — |
| Expiry date | Aug 30, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0681
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Described are systems for performing a medical procedure at a treatment site in a cerebral vessel of a patient. The system includes a catheter and an inner member sized to slide within the catheter lumen. The inner member defines a single lumen and has a distal portion and a distal-most end having a distal opening, the distal portion having a first outer diameter that tapers distally to a second outer diameter that is smaller than the first outer diameter. A flexibility of the distal portion decreases smoothly from a flexibility at the second outer diameter to a flexibility at the first outer diameter when the system is in an advancement configuration. The system is sufficiently flexible that, when in the advancement configuration, the system is configured to be advanced distal to a petrous portion of an internal carotid artery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.