Dialysis system having non-invasive fluid velocity sensing
US9724456B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 8, 2014 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Mar 25, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2230/20
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A dialysis system includes a dialysis instrument including a blood pump, a dialysate inlet pump, a dialysate outlet pump, and at least one fluid velocity sensor, each sensor including an emitter and a receiver, a dialyzer arranged (i) to receive blood pumped by the blood pump, (ii) to receive fresh dialysate pumped by the dialysate inlet pump and (iii) such that used dialysate is pumped from the dialyzer by the dialysate outlet pump, and a disposable cassette including a to-dialyzer dialysate pathway carrying dialysate pumped by the dialysate inlet pump and a from-dialyzer dialysate pathway carrying used dialysate pumped by the dialysate outlet pump, wherein at least one of the to-dialyzer dialysate pathway or the from-dialyzer dialysate pathway includes at least one sensing area so positioned and arranged such that when the disposable cassette is mounted to the instrument, the sensing area is coupled operably with both the emitter and the receiver of the at least one fluid velocity sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.