Devices and methods for treating edema
US11931560B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2020 |
| Grant date | Mar 19, 2024 |
| Priority date | — |
| Expiry date | Mar 29, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/12
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The disclosure relates to devices and methods for the treatment of edema which devices use an intravascular edema pump with an anticoagulant. The invention provides devices and methods for treating edema that use an indwelling catheter to place an impeller in a blood vessel of a patient, near an outlet of a lymphatic duct. Operating the impeller creates a local depression in blood pressure, which promotes drainage of lymph from the lymphatic system. The catheter is also used to release an anticoagulant such as heparin to wash and lubricate the impeller. Specifically, the anticoagulant inhibits clotting, hemolysis, or thrombosis from occurring and interfering with smooth operation of the impeller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.