Title:
BLOOD PURIFICATION DEVICE, AND METHOD FOR DETERMINING DETECTION DEFECT IN FLOW METER
Document Type and Number:
WIPO Patent Application WO/2024/004482
Kind Code:
A1
Abstract:
The present invention comprises: a dialysate supply channel (52); a waste liquid discharge channel (53); a supply-side control flow meter (64) and a supply-side protective flow meter (65) for detecting the flow rate of the dialysate supply channel (52); a discharge-side control flow meter (73) and a discharge-side protective flow meter (74) for detecting the flow rate in the waste liquid discharge channel (53); a first water removal amount calculation unit (101) for calculating a control-side cumulative water removal amount on the basis of the flow rate detected by the supply-side control flow meter (64) and the flow rate detected by the discharge-side control flow meter (73); a second water removal amount calculation unit (102) for calculating a protection-side cumulative water removal amount on the basis of the flow rate detected by the supply-side protective flow meter (65) and the flow rate detected by the discharge-side protective flow meter (74); and a first detection defect determining unit (104) for determining a detection defect in the control flow meters (64), (73) on the basis of the difference between the control-side cumulative water removal amount and the protection-side cumulative water removal amount.
Inventors:
KATAYAMA YUKI (JP)
Application Number:
PCT/JP2023/019909
Publication Date:
January 04, 2024
Filing Date:
May 29, 2023
Export Citation:
Assignee:
NIKKISO CO LTD (JP)
International Classes:
A61M1/16
Foreign References:
| JPS63308519A | 1988-12-15 | |||
| JPH06254156A | 1994-09-13 | |||
| JPS56168848U | 1981-12-14 |
Attorney, Agent or Firm:
HIRATA & PARTNERS (JP)
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