Dialysate Preparation Control via Session Count Comparison
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Solution Overview
Problem
In blood purification systems, determining whether additional preparation of undiluted dialysate solution is necessary is challenging due to variations in treatment sessions across multiple courses in a day, leading to potential shortages or overpreparation.
Innovation Solution
A blood purification system with a determining unit that compares the estimated number of treatment sessions to the actual number performed, determining if additional preparation of the undiluted dialysate solution is needed, and a control unit that manages the preparation process accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the volume of undiluted dialysate solution is prepared based on current treatment session demand only, then the preparation process is simple and quick, but a shortage of dialysate solution may occur if there are additional treatment courses remaining
Solution Approach 1:
The determining unit performs preliminary assessment of total treatment course requirements before finalizing the dialysate solution preparation volume. By estimating the number of treatment courses and calculating total dialysate volume needed in advance, the system ensures adequate supply for all treatment sessions while avoiding shortages
Solution Approach 2:
The system continuously monitors the actual number of treatment sessions performed and compares it with the estimated number. Based on this feedback, the determining unit dynamically adjusts the dialysate solution preparation volume to match actual treatment demands, ensuring both adequacy and efficiency
2Reliability
If the volume of undiluted dialysate solution is prepared to cover all possible treatment courses, then supply adequacy is ensured, but excessive preparation leads to waste of resources
Solution Approach 1:
The system dynamically determines the dialysate solution preparation volume based on real-time treatment session data. The determining unit adjusts the preparation volume according to the actual number of treatment courses performed, transitioning from static over-preparation to dynamic demand-matched preparation, thereby eliminating waste while ensuring adequacy
Solution Approach 2:
The system changes the preparation volume parameter based on treatment course variations. By calculating the required dialysate volume as a function of actual treatment sessions performed rather than using fixed maximum values, the system optimizes the preparation parameter to match actual demand, preventing both shortages and waste
3Ease of operation
If the determination of additional preparation is made without considering treatment course variations, then the control process is simple, but accuracy of determination deteriorates
Solution Approach 1:
The determining unit automatically performs comprehensive determination of additional preparation needs by integrating treatment session data, course information, and dialysate consumption calculations. The system self-services the complex determination process without requiring manual intervention, maintaining simplicity of operation while achieving high determination accuracy through automated multi-parameter analysis
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution accurately determines the need for additional dialysate solution preparation, ensuring adequate supply without excess, thus optimizing resource utilization and treatment efficiency.
Implementation Method 1
a dialysate-supplying unit that prepares a working dialysate at a predetermined concentration by diluting the undiluted dialysate solution
Data Source
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AI summary
To provide a blood purification system and a solution-preparation-determining apparatus with which the determination of whether additional preparation of an undiluted dialysate solution is necessary is achieved accurately. A blood purification system includes a solution-preparing unit that prepares an undiluted dialysate solution, a dialysate-supplying unit that prepares a working dialysate at a predetermined concentration by diluting the undiluted dialysate solution received from the solution-preparing unit, a blood-purification-treatment section that includes a blood-purification-apparatus group including at least one blood purification apparatus that performs blood purification treatment in which the working dialysate prepared by the dialysate-supplying unit is supplied to the blood-purification-apparatus group, and a determining unit that determines whether additional preparation of the undiluted dialysate solution by the solution-preparing unit is necessary from a result of comparison between an estimated number of treatment sessions expected to be performed by the blood-purification-apparatus group throughout a predetermined period and an actual number of treatment sessions performed by the blood-purification-apparatus group as of a time point during the predetermined period.