Blood Purification Unit Calibration Data Sharing for Faster Setup

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Solution Overview

Problem

The setup time for separable-type blood purification devices is prolonged due to the need for recalibration of sensors and actuators when units are replaced.

Innovation Solution

A blood purification device comprising separate units with a storage unit to store calibration data, allowing data sharing and synchronization between units upon connection, thereby eliminating the need for recalibration during setup.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of repair

If the blood purification device is composed of separate replaceable units, then ease of maintenance is improved, but setup time increases due to recalibration requirements

Engineering Contradiction:
Improveease of maintenanceVSAvoidsetup time
Core Design Contradiction:
Ease of repairVSLoss of time

Solution Approach 1:

The patent uses data copying to transfer calibration data from a storage unit to a control unit when units are connected. This allows the control unit to acquire previously calibrated data without performing recalibration, thereby maintaining ease of maintenance through unit replacement while eliminating setup time loss.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent performs calibration in advance and stores the calibration data in a storage unit before unit replacement. When units are connected, this pre-stored data is automatically transferred to the control unit, eliminating the need for recalibration and reducing setup time while maintaining the ability to replace units for maintenance.

Inventive Principle:
Principle #10Preliminary action

2Loss of time

If calibration data is stored and shared between units, then setup time is reduced, but device complexity increases

Engineering Contradiction:
Improvesetup timeVSAvoiddevice complexity
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The patent segments the data management function by separating the storage unit (for calibration data) from the control unit (for data processing and unit coordination). This segmentation reduces device complexity by distributing functions across separate components while enabling calibration data sharing to reduce setup time.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a storage unit as an intermediary component that holds calibration data and enables transfer between units. This intermediary simplifies the data sharing mechanism compared to direct unit-to-unit communication, reducing overall system complexity while achieving rapid setup through data transfer.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP4653026A1Blood purification device and blood purification system
Publication Date: 2025.11.26 NIKKISO CO LTD
  • EP4653026A1 patent drawingFigure 1A~1B
  • EP4653026A1 patent drawingFigure 2
  • EP4653026A1 patent drawingFigure 3

AI summary

This blood purification device 1 is configured by being divided into a plurality of units 3 and 4. At least one unit 3 of the plurality of units 3 and 4 is configured so as to have a storage part 7 for storing calibration data 91 of the unit 3, and when the unit 3 is connected to the other unit 4, the calibration data 91 can be shared with the other unit 4.