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METHOD AND DEVICE FOR SENSING THE DETACHMENT OF THE VENOUS NEEDLE FROM A PATIENT DURING AN EXTRACORPOREAL BLOOD TREATMENT IN A DIALYSIS MACHINE
METHOD AND DEVICE FOR SENSING THE DETACHMENT OF THE VENOUS NEEDLE FROM A PATIENT DURING AN EXTRACORPOREAL BLOOD TREATMENT IN A DIALYSIS MACHINE
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机译:用于在透析机中感测患者体外静脉血液分离过程中从患者中分离出静脉针的方法和装置
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摘要
A method of sensing the detachment of the venous needle (13) from a patient(P) during an extracorporeal blood treatment in a dialysis machine (1) havingan extracorporeal blood circuit (2), in which an electric current is made toflow along a closed-loop path (P1) of an electrical circuit (37) formed by anelectrical line (21, 22, 23) external to the extracorporeal circuit (2), aportion of extracorporeal circuit (2) directly connected to the venous needle(13), and the patient (P); a signal correlated with the electric current alongthe electrical line (21, 22, 23) is detected; and the signal is compared witha threshold value by means of a control unit (15).
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