Actuated clot retrieval catheter
US11311304B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2020 |
| Grant date | Apr 26, 2022 |
| Priority date | — |
| Expiry date | Mar 4, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2217/005
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Devices described herein include an actuated clot retrieval catheter system. The system includes a catheter having a frame disposed proximate the distal end of the catheter. The frame expands to form a seal with the inner wall of a vessel. In some examples, the frame also captures a clot for removal from the vessel. The frame is manufactured from a shape memory material that can be heat set into a predetermined shape. An electrical connection to an electronic circuit causes a current to run through the frame. The electrical resistance of the shape memory material causes the frame to heat and transition from a martensite to an austenite phase. When the frame is heat set into an expanded configuration, the current causes the frame heat and expand. When the frame is heat set into a closed configuration, the current causes the frame heat and collapse upon a clot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.