Blood Treatment Parameter Control Using Target-Value Feedback
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Solution Overview
Problem
Existing blood treatment systems require manual adjustment of treatment parameters by users, which can lead to errors and reduce patient safety due to mental calculations and input errors.
Innovation Solution
A control device or closed-loop control device that automatically determines new adjustable values for blood treatment parameters based on actual and target values, reducing the need for manual input and minimizing errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual adjustment of treatment parameters is performed by users, then flexibility and adaptability are improved, but error rate and reduction of patient safety increase
Solution Approach 1:
The control device automatically determines new adjustable values by itself using the comparison result between actual and target values, without requiring manual calculation or adjustment by users. The system serves itself by autonomously generating correction values or new adjustable values based on the deviation detected, thereby eliminating human error while maintaining adaptability.
Solution Approach 2:
The control device continuously compares actual values with target values and uses this feedback to automatically determine correction values or new adjustable values. This closed-loop feedback mechanism ensures that the system adapts to changing conditions while maintaining reliability through automated, error-free adjustments.
2Ease of operation
If manual adjustment of treatment parameters is performed by users, then ease of operation is maintained, but time consumption and efficiency decrease
Solution Approach 1:
The control device automatically performs the entire adjustment process without user intervention. It reads measurement values, compares them with target values, and determines new adjustable values autonomously, eliminating the time users would spend on manual calculations and input while maintaining operational simplicity through automated presentation of results.
Solution Approach 2:
The control device prepares and determines the new adjustable values in advance based on the comparison result, so that when adjustment is needed, the corrected values are already ready for immediate implementation. This preliminary automatic calculation eliminates time consumption during critical adjustment moments.
3Reliability
If automatic determination of new adjustable values is implemented, then reliability and patient safety are improved, but device complexity increases
Solution Approach 1:
The control device uses a straightforward feedback mechanism: it reads measurement values, compares them with stored target values, and determines correction values or new adjustable values based on the deviation. This simple feedback loop achieves high reliability and patient safety without requiring complex algorithms or additional hardware.
Solution Approach 2:
The control device acts as an intermediary between the measurement system and the treatment parameter adjustment. It automatically processes the comparison result and generates the appropriate correction, simplifying the overall system architecture by consolidating the calculation function in a single dedicated component rather than requiring complex user-side processing.
4Productivity
If automatic determination of new adjustable values is implemented, then productivity and efficiency are improved, but ease of operation may worsen
Solution Approach 1:
The control device automatically determines new adjustable values and presents them to the user through the user interface. This automated feedback process significantly improves productivity by eliminating manual calculation time while maintaining ease of operation through simple presentation and confirmation interfaces that require minimal user interaction.
Data Source
AI summary
The present disclosure relates to a control device or closed-loop control device programmed to control or regulate a blood treatment apparatus during an administered treatment of a patient's blood using an extracorporeal blood tubing set and the blood treatment apparatus based on set adjustable values of treatment parameters set by using the blood treatment apparatus or using another device optionally connected to the extracorporeal blood tubing set, wherein the control device or closed-loop control device is further programmed, after reading, to compare at least one measurement value collected during the administered treatment, as the actual value of a blood parameter with a stored target value of the blood parameter. Based on this comparison and observation of a set adjustable value of one of the treatment parameters, either a correction value or correction factor to change the set adjustable value or a new adjustable value is determined in each case.