Apparatus for performing peritoneal ultrafiltration
US11590269B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2020 |
| Grant date | Feb 28, 2023 |
| Priority date | — |
| Expiry date | Mar 5, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/8206
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus for ultrafiltration of a patient being overhydrated due to congestive heart failure, comprising a tube set including a connector (21) for connection to a patient line (3) for access to the peritoneal cavity of the patient. A flow pump (41-43) is arranged for addition and removal outflow and inflow (recirculation) of fluid from/to the peritoneal cavity. An osmotic agent peristaltic pump (16) is arranged for replenishment of glucose solution to the fluid added to the peritoneal cavity for promoting ultrafiltration. The glucose is replenished intermittently for keeping a concentration of glucose substantially constant in the peritoneal cavity. The flow pump comprises a pressure chamber (43) with rigid walls and a flexible pump bag (41) arranged therein. An air pump (45) pressurizes the chamber for outflow of fluid from the peritoneal cavity by a sub pressure and inflow of fluid to the peritoneal cavity by an overpressure, which pressures are maintained within safe limits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.