Circuit for extracorporeal blood circulation
US7264607B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 19, 2004 |
| Grant date | Sep 4, 2007 |
| Priority date | — |
| Expiry date | Jun 20, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/123
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A circuit for extracorporeal blood circulation, which is used for a single-needle dialysis, comprises a blood withdrawal line (2) having an arterial pump portion (23), and a blood return line (4) having a venous pump portion (43). Pump portions are designed to be coupled with corresponding peristaltic pumps (6), (7). An arterial expansion chamber (25) is arranged on the withdrawal line downstream from said arterial pump portion. A venous expansion chamber (45) is arranged on the return line upstream from said venous pump portion. The two expansion chambers are firmly joined one to the other into an integrated structure (9), which is equipped inside with two ducts connecting the arterial expansion chamber with two fluid connections attached outside to the integrated structure. The circuit can be assembled and disassembled from a dialysis machine easily and rapidly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.