Urine Analysis Spacer Prevents Recirculation

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Solution Overview

Problem

Existing urine analysis devices face issues with limited urine collection and recirculation of drain fluid at the collection aperture, leading to inefficiencies and potential contamination.

Innovation Solution

The device incorporates a spacer protruding from the rear face to maintain the collection aperture away from the toilet bowl, preventing obstruction and recirculation, while also featuring an array of ribs on the rear face to guide urine towards the collection aperture.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the collection aperture is positioned close to the toilet bowl for efficient urine collection, then urine collection efficiency is improved, but the aperture becomes obstructed by the toilet bowl causing recirculation of drain fluid

Engineering Contradiction:
Improveurine collection efficiencyVSAvoidrecirculation of drain fluid
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

A spacer element is introduced as an intermediary component between the collection aperture and the toilet bowl. This spacer maintains a controlled distance, preventing direct contact between the aperture and the toilet bowl interior, thereby eliminating recirculation of drain fluid while preserving efficient urine collection through the aperture.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The problem is solved by transitioning from a two-dimensional positioning issue to a three-dimensional solution. By introducing the spacer that extends in the depth dimension (away from the toilet bowl), the collection aperture is repositioned in space to achieve both close proximity for efficient collection and sufficient distance to prevent recirculation.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Volume of moving object

If the rear face is positioned close to the toilet bowl for compact design, then device compactness is improved, but the collection aperture becomes obstructed creating a bottleneck

Engineering Contradiction:
Improvedevice compactnessVSAvoidbottleneck formation
Core Design Contradiction:
Volume of moving objectVSDevice complexity

Solution Approach 1:

The spacer acts as a mediating structure that resolves the spatial conflict between the rear face and the toilet bowl. It provides the necessary separation to prevent bottleneck formation at the collection aperture while maintaining overall device compactness through its optimized dimensions and positioning.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If the collection aperture is positioned to avoid obstruction, then recirculation is prevented, but urine collection volume is reduced

Engineering Contradiction:
Improverecirculation preventionVSAvoidurine collection volume
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The spacer serves as an optimal mediator that balances two conflicting requirements: it positions the collection aperture far enough from the toilet bowl to prevent recirculation of drain fluid, while simultaneously maintaining it close enough to ensure efficient urine collection. The spacer's specific dimensions and material properties are optimized to achieve this balance.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS20250057455A1Spacer for urine analysis device
Publication Date: 2025.02.20 WITHINGS SAS
  • US20250057455A1 patent drawing
  • US20250057455A1 patent drawing
  • US20250057455A1 patent drawing

AI summary

A urine analysis device includes a case configured to be positioned entirely within a toilet bowl. The case includes a front face for receiving a stream of urine directly from a user urinating in the toilet bowl and a rear face opposite the front face. The device includes a collection aperture located on the rear face, the collection aperture being configured to collect liquid inside the case. The device includes at least a spacer protruding out of the rear face and configured to be in contact with the toilet bowl.