Single-needle artificial kidneys
US5047147A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1988 |
| Grant date | Sep 10, 1991 |
| Priority date | — |
| Expiry date | Nov 23, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M1/342
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Artificial kidney of the single-needle type, incorporating an extracorporeal blood circuit provided with a haemodialyser (13) or haemofilter (31) positioned between two blood circulation pumps (12, 19). This circuit is also provided with a bubble trap (18) and a safety clamp (26) and means for perfusing quantities of liquid which are capable of being relatively large. The perfusing means comprise a reservoir (23) and a perfusion pump (24) the motion of which is under the control of the sequential motion of one of the two blood circulation pumps (12, 19) and also comprise a conduit connecting the reservoir (23) to the extracorporeal blood circuit by way of the perfusion pump (24).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.