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DIALYSIS MACHINE HAVING A DEVICE FOR SENSING THE DETACHMENT OF THE VENOUS NEEDLE FROM A PATIENT DURING AN EXTRACORPOREAL BLOOD TREATMENT
DIALYSIS MACHINE HAVING A DEVICE FOR SENSING THE DETACHMENT OF THE VENOUS NEEDLE FROM A PATIENT DURING AN EXTRACORPOREAL BLOOD TREATMENT
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机译:透析机具有一种装置,该装置用于在体外前血液处理过程中感测患者静脉针的分离
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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 ) having an extracorporeal blood circuit ( 2 ), in which an electric current is made to flow along a closed-loop path (P 1 ) of an electrical circuit ( 37 ) formed by an electrical line ( 21, 22, 23 ) external to the extracorporeal circuit ( 2 ), a portion of extracorporeal circuit ( 2 ) directly connected to the venous needle ( 13 ), and the patient (P); a signal correlated with the electric current along the electrical line ( 21, 22, 23 ) is detected; and the signal is compared with a threshold value by means of a control unit ( 15 ).
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