Devices and methods for treating edema
US12318561B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2023 |
| Grant date | Jun 3, 2025 |
| Priority date | — |
| Expiry date | Jun 23, 2043 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3337
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The disclosure relates to devices and methods for the treatment of edema, which devices use a restrictor for flow compensation. Devices and methods of the invention further use a flow-restrictor in the circulatory system, upstream of an intravascular pump, to balance pressure changes induced by the pump and to compensate for downstream flow. The device may be provided as an indwelling, intravascular catheter with a mechanical pump such as an impeller and a selectively deployable restrictor such as an inflatable balloon. Congestive heart failure or edema is treated by\operating the pump in an innominate vein and using the restrictor for flow compensation, to restrict the upstream flow and thus amplify or maintain pressure reduction at the lymphatic outlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.