Dialysis Drain Line Plug Device for Secure Waste Fluid Disposal

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Solution Overview

Problem

Current dialysis systems face challenges in securely connecting and directing waste fluid from dialysis treatments into drains, leading to potential leaks and increased cleanup needs, especially in residential and commercial settings where standard connectors may not fit all drain fixtures.

Innovation Solution

The introduction of plug devices and guide devices that securely connect and position dialysis system drain lines over drains, ensuring waste fluid is directed into the drain receptacle, reducing leakage risks and simplifying waste disposal by using Luer type fittings and adaptable designs for various drain sizes and fixtures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If standard connectors are used for drain lines, then device complexity is reduced, but adaptability to various drain fixtures is worsened

Engineering Contradiction:
Improveconnector complexityVSAvoiddrain fixture compatibility
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent applies universality by designing a connector assembly that can adapt to multiple drain fixture types (drain holes, drain pipes, shower drains) through interchangeable components. The universal base plate with multiple mounting hole patterns and the ability to accommodate different connector types (basketball hose connector, garden hose connector) allows a single system to serve multiple drainage configurations without requiring entirely different connector designs.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If secure connection mechanisms are implemented, then reliability of waste fluid disposal is improved, but ease of operation is worsened

Engineering Contradiction:
Improveleak preventionVSAvoidconnector installation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent applies preliminary action by pre-assembling the connector components (connector body, sealing elements, mounting hardware) into a integrated connector assembly before installation. The base plate is pre-configured with multiple hole patterns and the connector is pre-attached with sealing elements in place, so that during installation, the user simply needs to position and secure the pre-assembled unit rather than assembling multiple separate components during the connection process.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If specialized connectors are used for all drain fixtures, then adaptability is improved, but device complexity is worsened

Engineering Contradiction:
Improvedrain fixture compatibilityVSAvoidconnector variety
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies segmentation by dividing the connector system into modular components: a universal base plate, interchangeable connector bodies (basketball hose connector, garden hose connector), and mounting hardware. This segmentation allows the system to handle various drain fixture types by simply swapping connector bodies while keeping the base plate and mounting mechanism the same, thereby providing adaptability without requiring complete specialized connectors for each fixture type.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3762059B1Devices for securing dialysis fluid lines and related systems
Publication Date: 2024.08.21 FRESENIUS MEDICAL CARE HOLDINGS INC
  • EP3762059B1 patent drawingFigure 1
  • EP3762059B1 patent drawingFigure 2
  • EP3762059B1 patent drawingFigure 3A~3B

AI summary

A dialysis system includes a dialysis machine, a drain line configured to be connected to the dialysis machine to direct waste fluid from the dialysis machine to a drain, and a plug device configured to be inserted into and secured to an opening of the drain. The plug device is connectable to the drain line to allow the waste fluid to be directed from the dialysis machine, through the drain line, through the plug device, and into the drain.