Systems and methods for power and flow rate control
US8652086B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2006 |
| Grant date | Feb 18, 2014 |
| Priority date | — |
| Expiry date | Nov 3, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M1/77
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention is generally directed to systems and methods for fluid control, and more particularly to systems and methods for power and flow rate control for aspiration. In accordance with one embodiment, an aspiration system includes an aspiration line having distal and proximal ends and an aspiration port defined in the distal end; a fluid transport device operatively coupled to the proximal end of the aspiration line; and a flow restrictor operatively coupled to the aspiration line in between the fluid transport device and the aspiration port. To measure occlusion within the line, first and second pressure sensors are utilized, the first sensor being operatively coupled to the aspiration line between the port and the restrictor and the second sensor being operatively coupled to the aspiration line between the restrictor and the fluid transport device. The pressure differential between the two sensors can provide an indication of the onset, presence, and/or elimination of an occlusion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.