Dialysis device and control method
A technology of a dialysis device and a control method, which is applied in dialysis systems, blood filtration, etc., and can solve problems such as inability to remove water
Active Publication Date: 2021-02-05
JMS CO LTD
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- Abstract
- Description
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- Application Information
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Problems solved by technology
like Figure 6A As shown, when injecting 200 ml of rehydration fluid at 150 ml / min, each time is 80 seconds, and during 7 times of 560 seconds (9.3 minutes), water removal cannot be carried out
Method used
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no. 1 Embodiment approach ＞
[0034] figure 1 It is a diagram showing a schematic configuration of a dialysis apparatus 100 according to the first embodiment of the present invention.
[0035] Such as figure 1 As shown, the dialysis apparatus 100 includes a blood circuit 110 through which blood flows, a blood purification unit 120 , a dialysate circuit 130 , and a control unit 140 .
[0036] The blood circuit 110 has an arterial line 111 , a venous line 112 , a drug line 113 , and a priming solution discharge line 114 . The arterial line 111 , the venous line 112 , the medicine line 113 , and the priming solution discharge line 114 are all composed mainly of a flexible flexible tube through which liquid can flow.
[0037] One end of the artery-side conduit 111 is connected to a blood introduction port 122a of a blood purification unit 120 described later. An artery-side connecting portion 111 a , an artery-side air bubble detector 111 b , and a blood pump 111 c are arranged in the artery-side conduit ...
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Provided are a dialysis device and a control method that are capable of removing water in a volume proportional to body weight at a predetermined water removal rate irrespective of the embodiment of areplacement fluid. This dialysis device 100 is provided with: a blood circuit 110; a blood purification means 120; a dialysate circuit 130 having a dialysate delivery unit 133 that delivers a dialysate through the blood purification means 120 so as to perform fluid replacement by backfiltration or water removal; and a control unit 140 which performs control so as to cause the dialysate delivery unit 133 to carry out water removal from the blood circuit 110 and intermittent fluid replacement to the blood circuit 110. The time for performing fluid replacement is computed on the basis of a prescribed fluid replacement volume and a prescribed fluid replacement rate r. When fluid replacement is not being performed, water removal in a volume proportional to body weight is performed at a presetwater removal rate f1, and at the same time, water removal in a volume proportional to recovered replacement fluid is performed at a replacement fluid recovery rate f2 based on a prescribed replacement fluid volume. When fluid replacement is being performed, fluid replacement is carried out at a backfiltration rate R that is computed by subtracting the preset water removal rate f1 from the prescribed fluid replacement rate r.
Description
technical field [0001] The present invention relates to a dialysis device capable of performing fluid replacement intermittently and a control method using the dialysis device. Background technique [0002] In recent years, in the treatment of hemodiafiltration (so-called HDF), for example, in the treatment of hemodiafiltration (so-called HDF), it has been proposed to prevent the drop in blood pressure accompanying the decrease in circulating blood volume during dialysis treatment, improve peripheral circulation, and improve dialysis efficiency. The "intermittent replenishment type hemodiafiltration method (so-called I-HDF)" in which 150 ml to 200 ml of fluid replacement is repeated for 30 minutes is performed (see Non-Patent Document 1 and Non-Patent Document 2). [0003] With regard to the injection method of fluid replacement into the blood circuit, in the case of a dialysis device in which the dialysate is back-filtered and injected through a blood purification unit such...
Claims
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IPC IPC(8): A61M1/34A61M1/16
CPCA61M1/34A61M1/16
Inventor 田冈正宏正冈胜则
Owner JMS CO LTD