Apparatus and methods for controlled clot aspiration
US12408933B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2023 |
| Grant date | Sep 9, 2025 |
| Priority date | — |
| Expiry date | Sep 18, 2043 |
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 connection tubing configured to act as a fluid conduit between the vacuum source and the aspiration catheter. A controllable valve is configured to control a level of vacuum in the connection tubing provided by the vacuum source, and one or more pressure sensors are associated with the connection tubing. A controller is configured to periodically sample flow when the current flow state is unrestricted, utilize an artificial neural network to classify a flow state for the sampled flow, close the controllable valve if the flow state for the sampled flow is classified as unrestricted, and hold the controllable valve open if the flow state for the sampled flow is classified as restricted or obstructed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.