Single needle alternating flow blood pump system
US4063554A · kind A · utility
8Cited by
4References
8Claims
0Family size
Inventors
Key dates
| Filing date | Apr 16, 1976 |
| Grant date | Dec 20, 1977 |
| Priority date | — |
| Expiry date | Apr 16, 1996 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M1/307
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A blood pump system, typically employed in dialysis, includes a blood pump for withdrawing blood via a single hypodermic needle and valve means operated in synchronism therewith for returning treated blood via the same hypodermic needle. The operation of the blood pump is cyclically interrupted and the valve means opened for the alternate withdrawal and return of blood.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.