Integrated Dialysis Plug for Concurrent Grounding Integrity
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Solution Overview
Problem
Dialysis machines, particularly hemodialysis machines, face safety risks due to inadequate grounding connections, which can lead to unacceptable leakage currents, failing to meet safety standards like IEC 60364-7-710, and may operate without essential hydraulics grounding, increasing the likelihood of electrical hazards.
Innovation Solution
A combined plug configuration that includes separate grounding connections for the power supply and hydraulics systems, ensuring both connections are made simultaneously and maintained concurrently, meeting international safety standards by providing distinct and concurrent grounding via a single plug with a handle for easy connection, and non-conductive prongs for improved integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate grounding connections are provided for power supply and hydraulics systems, then patient safety and compliance with safety standards are improved, but device complexity and ease of operation deteriorate
Solution Approach 1:
The patent combines separate grounding connections for the power supply system and hydraulics system into a single integrated plug. This plug simultaneously establishes both grounding connections when inserted into the AC power outlet, thereby maintaining patient safety and compliance with IEC 60364-7-710 standards while eliminating the complexity of managing separate plugs and connections.
Solution Approach 2:
The integrated plug serves multiple functions: it provides both the power supply grounding connection and the hydraulics system grounding connection through a single device. This multi-functional design ensures that both essential grounding requirements are met simultaneously, improving reliability without requiring the user to manage multiple separate connection devices.
2Reliability
If separate grounding connections are provided for power supply and hydraulics systems, then compliance with safety standards is improved, but ease of operation deteriorates
Solution Approach 1:
The patent merges the requirement to connect two separate grounding systems into a single plug insertion action. When the user inserts this integrated plug into the AC power outlet, both the power supply grounding and hydraulics system grounding are established simultaneously, ensuring safety standards compliance while simplifying the operational process to a single straightforward action.
3Object-affected harmful factors
If concurrent grounding connections are ensured, then protection against leakage currents is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple grounding functions into a single integrated plug structure. This design ensures that both the power supply grounding and hydraulics system grounding are established concurrently when the plug is inserted, providing protection against leakage currents while containing the structural complexity within a single unified component rather than requiring multiple separate devices.
Data Source
AI summary
A dialysis machine comprising: a power supply for providing power to the dialysis machine, the power supply including a power supply cable that includes a first ground wire electrically connected to a first ground prong; and a hydraulics system for making dialysate, supplying the dialysate to a dialysate circuit, and draining spent dialysate from the dialysate circuit, the hydraulics system including a hydraulics grounding cable that includes a second ground wire electrically connected to a second ground prong.