Dialysis Machine Internal Fluid System Universal Coupling
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Solution Overview
Problem
Existing dialysis machines face complexity and cost-intensiveness in changing between different therapy forms like hemodialysis, hemofiltration, and hemodiafiltration due to the need for different external fluid systems, which complicates sterility and tightness maintenance, and requires extensive procedural routines.
Innovation Solution
A dialysis machine with an internal fluid system that includes a dialysis fluid pump, a substituate pump, and separate drain and substituate supply lines with accessible coupling devices allows for easy connection and disconnection of external fluid systems, enabling seamless switching between therapy forms without reconfiguring external fluids, thus simplifying handling and reducing sterility and tightness risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different external fluid systems are used for different therapy forms (hemodialysis, hemofiltration, hemodiafiltration), then therapy versatility is improved, but device complexity and operational complexity increase
Solution Approach 1:
The patent implements a universal external fluid system that can perform multiple therapy forms (hemodialysis, hemofiltration, hemodiafiltration) through a single integrated circuit. The extracorporeal blood circuit is designed with universal connections that work across all therapy types, eliminating the need for separate fluid systems for each therapy form. This multi-functional design reduces device complexity while maintaining full therapy versatility.
Solution Approach 2:
The patent merges previously separate fluid management functions into a single integrated external fluid system. The blood circuit, substitution fluid connections, and drainage functions are combined into one unified extracorporeal system that can handle all therapy types. This consolidation reduces the number of separate components and simplifies the overall system architecture.
2Adaptability or versatility
If different external fluid systems are changed between therapy forms, then therapy adaptability is improved, but ease of operation deteriorates due to extensive procedural routines
Solution Approach 1:
The universal external fluid system eliminates the need to switch between different fluid systems when changing therapy forms. The single integrated circuit with standardized connections can accommodate all therapy types without requiring reconfiguration or replacement of fluid lines, significantly simplifying operator procedures and reducing training requirements.
3Adaptability or versatility
If different external fluid systems are used for different therapies, then therapy versatility is improved, but sterility and tightness maintenance becomes more difficult
Solution Approach 1:
The universal external fluid system maintains sterility and tightness across all therapy forms through standardized sterile barriers and sealed connections. The single integrated circuit is designed to maintain sterile conditions regardless of which therapy mode is active, eliminating the risk of contamination that arises from switching between multiple separate fluid systems.
4Adaptability or versatility
If multiple external fluid systems are maintained for different therapies, then therapy versatility is improved, but cost-intensiveness increases
Solution Approach 1:
The universal external fluid system reduces the quantity of fluid system components needed by eliminating redundant circuits for different therapy types. Instead of maintaining separate sterile fluid systems for hemodialysis, hemofiltration, and hemodiafiltration, a single multi-functional system performs all functions, reducing material costs and waste.
Data Source
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AI summary
The invention relates to a dialysis machine with an internal fluid system, wherein the internal fluid system comprises a dialysis fluid pump for pumping dialysis fluid from a dialysis fluid reservoir through a dialysis fluid supply line to a dialyzer and from the dialyzer through a dialysis fluid outlet to a waste reservoir, a substitution pump for supplying dialysis fluid as a substitute to an extracorporeal tubing system with patient-side connections through a substitution fluid supply line, and coupling devices for connecting the extracorporeal tubing system to the internal fluid system.