Portable Artificial Diuresis Device with Segmented Disposable Unit
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Solution Overview
Problem
Current diuresis methods, including pharmacological treatments and traditional ultrafiltration equipment, are inadequate for effectively managing fluid overload in clinical situations, as they are either ineffective or pose risks due to complexity and require specialized settings, limiting their use and effectiveness.
Innovation Solution
A portable, safe artificial diuresis device that reduces the volume of extracorporeal blood, incorporating a reusable machine and disposable unit with integrated filtering and measurement systems, allowing for self-administration and use in various settings without the need for specialized staff.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional ultrafiltration equipment is used, then fluid removal effectiveness is improved, but device complexity and portability are worsened
Solution Approach 1:
The device is divided into a reusable machine portion and a disposable unit portion. The disposable unit contains the filtering assembly and blood reservoir, separating complex components that need sterilization from those that can be reused, thereby reducing overall device complexity while maintaining ultrafiltration effectiveness.
Solution Approach 2:
A disposable unit is introduced containing the filtering assembly and blood reservoir. This allows the complex filtering components to be discarded after single use, eliminating the need for complex sterilization systems and making the overall device simpler and more portable while maintaining effective fluid removal.
2Productivity
If traditional ultrafiltration equipment is used, then fluid removal effectiveness is improved, but ease of operation is worsened
Solution Approach 1:
The device is designed to be worn by the patient on their body, allowing self-administration of the therapy. The portable design with integrated pump and filtering assembly enables patients to perform ultrafiltration treatments independently without requiring specialized medical staff or hospital settings.
3Productivity
If high volume extracorporeal blood is used, then ultrafiltration effectiveness is improved, but patient safety is worsened
Solution Approach 1:
The blood reservoir is pre-filled with saline solution before connection to the patient. This preliminary action primes the system and ensures that when the pump operates, blood is drawn into the reservoir gradually rather than creating large volumes of extracorporeal blood circulation, thereby reducing the risk of blood loss while maintaining effective ultrafiltration.
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
The device enables safe and effective ultrafiltration in any setting, including home use, with reduced risk of blood loss and the ability to manage fluid overload continuously, progressively, and adjustably, facilitating prolonged treatments without the need for specialized medical staff.
Implementation Method 1
a peristaltic pump (12) for circulation of the organic liquid through the disposable unit (3)
Implementation Method 2
a filtering unit (5) for separation of an ultra-filtered liquid (LU) from the treated organic liquid (Lh2)
Data Source
Figure 1~2
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AI summary
An artificial diuresis device wearable by a patient (H) and comprising a reusable machine (2) and a disposable unit (3); wherein said disposable unit (3) is completely filled, before use, with treatment liquid (Lt).