发明名称 |
Early detection of low bicarbonate level |
摘要 |
This disclosure relates to early detection of low bicarbonate level. In certain aspects, a method includes receiving a first signal from a conductivity detector connected to a line through which a solution of salt concentrate and fluid flows and determining a first conductivity of the solution based on the first signal. The method also includes receiving a second signal from the conductivity detector at a time after receiving the first signal, determining a second conductivity of the solution based on the second signal, and determining whether the second conductivity is less than the first conductivity by at least a threshold amount. |
申请公布号 |
US8906240(B2) |
申请公布日期 |
2014.12.09 |
申请号 |
US201113220293 |
申请日期 |
2011.08.29 |
申请人 |
Fresenius Medical Care Holdings, Inc. |
发明人 |
Crnkovich Martin Joseph;Wang Aiyuan;Wang Fei |
分类号 |
B01D61/26;B01D61/28;B01D61/30;G08B21/00;G06F19/00;A61M1/16 |
主分类号 |
B01D61/26 |
代理机构 |
Fish & Richardson P.C. |
代理人 |
Fish & Richardson P.C. |
主权项 |
1. A method performed by data processing apparatus of a dialysis machine, the method comprising:
receiving a first signal from a conductivity detector connected to a line through which a solution of bicarbonate and fluid flows to a dialyzer of the dialysis machine, wherein the fluid flows from a fluid source, through a fluid line segment connected to the fluid source and the line, to the line; determining a first conductivity of the solution based on the first signal; receiving a second signal from the conductivity detector at a time after receiving the first signal; determining a second conductivity of the solution based on the second signal; and determining that solid bicarbonate in a container through which the solution flows is approaching a level insufficient to maintain the solution at a conductivity suitable for flowing though the dialyzer, based on a determination that the second conductivity is less than the first conductivity by at least a threshold amount. |
地址 |
Waltham MA US |