Apparatus and methods for controlled clot aspiration
US11759219B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 2019 |
| Grant date | Sep 19, 2023 |
| Priority date | — |
| Expiry date | Sep 10, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/7545
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A vacuum aspiration control system for use with a vacuum source and an aspiration catheter includes a connecting tube configured to connect the vacuum source with a lumen of an aspiration catheter. An on-off valve is operatively coupled to the connecting tube, and a sensing unit is configured to detect flow within the connecting tube and provide a signal representative of flow. A controller receives the signal to decide whether to open or close the valve. The controller may automatically close the valve to stop flow when flow through the connecting tube is unrestricted, or according to a predetermined timing sequence. The controller can further periodically open a closed valve to determine whether flow has entered an acceptable range. The controller can still further engage pulsed aspiration with a pressure manipulation assembly when flow is restricted or occluded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.