Hemodialysis apparatus

Abstract

A hemodialyzer not causing any medical malpractice such as air inclusion or blood loss during hemodialysis by detecting even a minute connection failure, if any. The hemodialyzer comprising a hemodialyzer (D), a dialyzing fluid supply line (L1), a dialyzing fluid discharging line (L2), an arterial blood line (L3), a venous blood line (L4), first fluid sending means (P1), second fluid sending means (P2), third fluid sending means (P3), a blood pump (P4), a venous chamber (Cv), an overflow line (L5), a venous pressure monitor line (L6), dialyzing fluid pressure measuring means (MT), venous pressure measuring means (Mv), clamps (CLL4, CLL5), control means (G1) which closes the clamp (CLL5) when a predetermined time has elapsed from the start of the priming, allows the third fluid sending means (P3) to operate in the reverse filtration direction or in the water removing direction simultaneously with the closure of the clamp (CLL5), and then opens the clamp (CLL5) when a predetermined time has elapsed, and judging means (J1) which judging the normality of the circuit connection after comparing a variation of the dialyzing fluid pressure or the venous pressure while the clamp (CLL5) is closed with a predetermined reference value.

Description

technical field [0001] The present invention relates to a hemodialysis apparatus as an apparatus for treatment with extracorporeal circulation of blood such as hemodialysis, continuous hemofiltration, plasma exchange, etc., and in particular, the present invention relates to a hemodialysis apparatus which is used in preparation for starting treatment Or immediately before the start of treatment, confirm the airtightness of the extracorporeal circulation circuit that circulates blood, etc., to judge the normality of the circuit connection, and prevent medical accidents such as air infiltration or blood loss during treatment in the future. Background technique [0002] The hemodialysis device is a kind of medical equipment that purifies the blood of patients with renal insufficiency and drug poisoning through extracorporeal circulation. Generally, (1) the blood is contacted with the dialysate through a semi-permeable membrane to purify the blood. (2) Dialysate supply and disch...

AI Technical Summary

Problems solved by technology

Therefore, in this detection method, in terms of appearance, it looks like a normal connection, but there is a small gap in the circuit connection part, and it is impossible to detect the so-called slow leakage in which liquid leaks from the gap very little at a time.

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