The blood treatment device null which has the device which calculates manner and feature, and fistula recycling factor or the heart lung recycling amount factor calculating the recycling factor or heart lung recycling factor with

摘要

This invention the blood chamber and the dialysis fluid chamber (9) the diamond riser which is divided (6) the blood chamber (8) passing the blood which it should process, the semipermeable membrane (7) due to, flows into external blood circuit (i), the dialysis fluid, passes by the dialysis fluid chamber of the diamond riser inside dialysis fluid route (ii) and flows, during external blood processing recycling ratio with fistula and/or it regards the method of calculating heart lung recycling amount ratio. In addition, this invention, recycling ratio with fistula and/or recycling ratio with the device, and the fistula which calculate heart lung recycling amount ratio and/or regards the blood processing device which has the device which calculates heart lung recycling amount ratio. Method and the device by this invention are based on seeking fistula recycling ratio (R) with heart lung recycling amount ratio (R) harmony namely entire recycling ratio (R), in regard to two blood flows which differ mutually. Next, from the recycling ratio regarding two blood flows, fistula recycling ratio and/or heart lung recycling amount ratio is required. It is done the high blood flow where 1st recycling ratio measurement are times when fistula recycling occurs (Q) to in regard, as for 2nd measurement, fistula recycling does not occur, it is done low blood flow (Q) to in regard. These two measurable quantities, fistula recycling ratio and/or form the foundation in order to obtain heart lung recycling amount ratio.