초록 ▼

A number of improvements relating to methods and apparatuses for kidney dialysis are disclosed. These include checking of dialysate bypass status using flow measurement; using a flow sensor to confirm the absence of ultrafiltration during bypass; automatic testing of ultrafiltration function by remo

A number of improvements relating to methods and apparatuses for kidney dialysis are disclosed. These include checking of dialysate bypass status using flow measurement; using a flow sensor to confirm the absence of ultrafiltration during bypass; automatic testing of ultrafiltration function by removal of a discrete volume from a portion of the dialysate flow path coupled with a pressure test of that part of the flow path; using a touch screen user interface; bar graph profile programming of ultrafiltration, sodium, and bicarbonate parameters; using a RAM card to upload treatment instructions to, and to download treatment data from, the machine; automatic setting of proportioning mode (acetate or bicarbonate) based on connections of concentrate lines; predicting dialysate conductivity values based on brand and formulation of concentrates; minimizing no-flow dead time between dialysate pulses; initiating operation in a timed mode from a machine power-off condition; preserving machine mode during machine power-fail condition; calibration scheduling and reminding; automatic level adjusting; and blood leak flow rate detecting.

대표청구항 ▼

[ We claim:] [1.] A kidney dialysis machine comprising:(a) means for circulating dialysate at a dialysate conductivity through a dialysate circuit including a dialysate compartment for a dialyzer;(b) means for circulating blood from a dialysis patient through an extracorporeal blood circuit includin

[ We claim:] [1.] A kidney dialysis machine comprising:(a) means for circulating dialysate at a dialysate conductivity through a dialysate circuit including a dialysate compartment for a dialyzer;(b) means for circulating blood from a dialysis patient through an extracorporeal blood circuit including a blood compartment of the dialyzer; and(c) control means operable to receive chemical-composition data reflecting a particular selection of dialysate to be circulated and to calculate from the data an expected conductivity reading of the dialysate and to automatically set conductivity alarm limits around the expected conductivity reading. [2.] A kidney dialysis machine as recited in claim 1 wherein said control means comprises means for receiving data regarding expected conductivity values of dialysates made from various concentrates, and means for processing the data so as to compare actual dialysate conductivity values against the corresponding expected conductivity value.