Hand cleaning device
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Solution Overview
Problem
Inadequate hand cleaning techniques and frequency lead to the transmission of communicable diseases, particularly due to the retention of infectious agents on the hands, especially around nails and hyponychium skin, in various environments including healthcare settings.
Innovation Solution
A device composed of compressible materials that expand to facilitate the application of cleaning agents to the underside of nails and hyponychium skin, using atmospheric pressure and rotational forces to ensure effective cleaning and reduce infectious agent transmission between digits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional hand cleaning methods are used, then general hand surface cleaning is achieved, but infectious agents retained around nails and hyponychium skin are not effectively removed
Solution Approach 1:
The device divides the hand cleaning function into separate zones: general hand cleaning surfaces and specialized nail/hyponychium cleaning channels. The hand cleaning device includes multiple channels with different geometries - some for general hand contact and others specifically configured to receive and clean digits, allowing targeted access to previously unreachable areas around nails and hyponychium skin
Solution Approach 2:
The invention introduces a new dimensional approach by creating three-dimensional cleaning channels that wrap around digits and extend into spaces beneath nails. The hyponychium cleaning channels are configured to access the space between the nail plate and skin, adding a vertical/depth dimension to cleaning that goes beyond traditional surface-level hand washing
2Reliability
If cleaning devices are designed to access difficult areas like under nails, then cleaning effectiveness improves, but device complexity increases
Solution Approach 1:
The device integrates multiple cleaning functions into a single unified structure. The hand cleaning device simultaneously provides general hand cleaning surfaces, digit receiving channels, and hyponychium-specific cleaning pathways, allowing one device to perform what previously required multiple separate tools or techniques
Solution Approach 2:
The device utilizes flexible or deformable channel structures that can adapt to the shape of digits and nails. The channels are designed with flexibility to conform to anatomical variations, allowing the same device structure to effectively clean different hand sizes and nail shapes without requiring multiple specialized components
3Reliability
If hand cleaning frequency is increased, then infectious agent transmission is reduced, but time consumption and loss of productivity increase
Solution Approach 1:
The device is designed to be easily operated by users themselves without requiring assistance or complex procedures. The intuitive design with clearly defined hand placement areas and automatic channel engagement allows users to perform thorough cleaning independently and quickly, encouraging more frequent use without significant time investment
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
The device effectively reduces the level of infectious agents on hands, particularly around nails and hyponychium skin, thereby preventing the transmission of communicable diseases, and is designed for easy use and decomposition during operation.
Implementation Method 1
using atmospheric pressure and rotational forces to ensure effective cleaning
Data Source
AI summary
A device for reducing a level of infectious agents present on one or more hands of a user. This device may reduce the level of infectious agents present on one or more fingers and/or thumbs of a user, specifically reducing a level of infectious agents present on the distal aspect of the digit; including, but not limited to an underside of a nail plate, and an area of hyponychium skin between a free margin of the nail plate and an onychodermal band of a digit, such as for example, a finger, thumb, or toe.