Single-Cassette CRRT Fluid Path Control for Simpler Dialysis
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing renal replacement therapies, such as continuous renal replacement therapy (CRRT), require complex, bulky equipment that necessitate specialized training and intervention by healthcare personnel, limiting their use to intensive care settings and complicating patient care.
Innovation Solution
A single cassette system integrated with a dialysis device for performing various renal replacement techniques, including SCUF, CWH, CVVHD, CVVHDF, and TPE, which simplifies operation, reduces operator errors, automates treatments, and allows use without specialized staff, using three main pumps and a controller to manage fluid paths and valves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional renal replacement therapy equipment is used, then treatment functionality is provided, but device complexity and bulkiness increase, requiring specialized training and limiting use to intensive care settings
Solution Approach 1:
The system is divided into modular components including a reusable pump unit and disposable patient modules, allowing the complex functionality to be segmented into manageable parts that can be used in different care settings without requiring full complex equipment
Solution Approach 2:
The pump unit is designed as a universal device that can perform multiple renal replacement therapies (hemodialysis, hemofiltration, hemodiafiltration) by simply changing the patient module, eliminating the need for multiple specialized devices and reducing overall system complexity
2Adaptability or versatility
If multiple pump systems are used to provide comprehensive renal replacement therapy, then treatment versatility is improved, but device complexity and operator requirements increase
Solution Approach 1:
A single pump unit is designed to perform all renal replacement therapy functions (hemodialysis, hemofiltration, hemodiafiltration) by controlling fluid flow through different disposable patient modules, eliminating the need for multiple specialized pump systems and reducing operator training requirements
Solution Approach 2:
Disposable patient modules are used instead of complex reusable systems for each therapy type, allowing treatment versatility while simplifying operation since the disposable modules are pre-configured and require no specialized assembly or maintenance
3Adaptability or versatility
If complex equipment with multiple consumables is used, then comprehensive treatment capability is achieved, but ease of operation decreases and specialized training is required
Solution Approach 1:
The disposable patient modules are designed to be self-contained and self-configuring, automatically connecting to the pump unit and requiring no specialized assembly or programming by the operator, thereby maintaining comprehensive treatment capability while dramatically improving ease of operation
Solution Approach 2:
The complexity of different therapy configurations is extracted into separate disposable patient modules, allowing the main pump unit to remain simple and easy to operate while still providing comprehensive treatment capability through module selection
Data Source
Figure 1~2
Figure 3~4
Figure 5~5'
AI summary
The invention relates to a blood processing system comprising a single cassette capable of performing the various CRRT treatments.