Urine Collection System Self-Cleaning Pump Mechanism

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Solution Overview

Problem

Conventional urine collection systems require users to manually empty and clean the collection container, which can lead to spills and unsanitary conditions.

Innovation Solution

A urine collection system that allows for cleaning and removal of urine from the collection container without removing it from the system, using a pump to create a vacuum for fluid transfer and a cleaning solution dispenser integrated into the lid.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual emptying and cleaning of the collection container is required, then the system structure can be simple, but hygiene conditions deteriorate and spills occur

Engineering Contradiction:
Improvehygiene conditionsVSAvoidsystem structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system enables self-cleaning through automated mechanisms. The collection container is equipped with a cleaning solution dispenser that automatically dispenses cleaning solution into the container, and a suction mechanism that automatically removes the cleaning solution and waste without requiring manual intervention. This self-service approach maintains hygiene conditions while minimizing the need for complex manual cleaning procedures.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

A cleaning solution is introduced as an intermediary substance to facilitate the cleaning process. The cleaning solution is dispensed into the collection container, allows for automatic removal of waste, and is then evacuated through a suction mechanism. This intermediary approach enables effective cleaning while maintaining system simplicity and preventing spills.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If the collection container is removed for cleaning, then cleaning access is improved, but the risk of spills and unsanitary conditions increases

Engineering Contradiction:
Improvecleaning accessVSAvoidspills and unsanitary conditions
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The cleaning solution acts as an intermediary that enables cleaning to occur while the container remains in place. The solution is dispensed through a port on the container lid, flows into the container, and is then suctioned out through the same or a separate port. This eliminates the need to remove the container for cleaning, thereby preventing spills and maintaining sanitary conditions.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The manual mechanical process of removing and hand-washing the container is replaced with an automated fluid-based cleaning system. A pump-driven suction mechanism draws the cleaning solution and waste through conduits, eliminating the need for manual handling and reducing the risk of spills during the cleaning process.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If a pump system is added for automated cleaning, then hygiene is improved, but device complexity increases

Engineering Contradiction:
Improvehygiene maintenanceVSAvoidpump and conduit system
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The pump system is designed to perform multiple functions: it evacuates urine from the collection container, dispenses cleaning solution into the container, and removes the cleaning solution and waste. By consolidating these functions into a single multi-functional pump system, the overall device complexity is minimized while maintaining effective hygiene maintenance.

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

Solution Approach 2:

The cleaning and evacuation functions are merged into a single integrated system. The same pump and conduit infrastructure used for urine evacuation is utilized for cleaning solution dispensing and waste removal. This merging of functions reduces the number of separate components needed and simplifies the overall system architecture.

Inventive Principle:
Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Facilitates sanitary cleaning and removal of urine without manual handling, reducing the risk of spills and maintaining hygiene.

Implementation Method 1

a pump in fluid communication with the canister interior region and configured to create a vacuum in the canister interior region effective to draw the urine from the urine collection device through the conduit into the canister

Methodology Applied
Scientific EffectVacuum: Vacuum

Implementation Method 2

dispensing the cleaning solution through the conduit and into the canister interior region... mixing the cleaning solution with the urine in the canister interior region

Methodology Applied
Scientific EffectMixing:

Implementation Method 3

activating the pump thereby creating a negative pressure in the canister interior region effective to draw the cleaning solution through the conduit and dispenser port into the canister interior region

Methodology Applied
Scientific EffectNegative pressure: Pressure Gradient

Data Source

PatentEP4358905B1Urine collection systems having a cleaning system, and related methods
Publication Date: 2025.12.31 PUREWICK CORP
  • EP4358905B1 patent drawingFigure 1A
  • EP4358905B1 patent drawingFigure 1B
  • EP4358905B1 patent drawingFigure 1C

AI summary

Examples relate to urine collection systems having a cleaning system, and related methods. A urine collection system includes a urine collection device, a canister having an interior region, a base including a pump, a lid, a cleaning solution container having a cleaning port, a first conduit, and a second conduit. The urine collection device is configured to be positioned at least proximate to a urethra of a user. The lid is secured or securable to the canister and includes a vacuum port, a urine port, and a dispenser port. The first conduit has an outlet detachably secured or securable to the dispenser port and/or the urine port, and an inlet detachably secured or securable to the urine collection device and/or the cleaning port. The second conduit is in fluid communication with the pump and has an inlet releaseably securable to the vacuum port.