Hand washing system and method
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Solution Overview
Problem
Current systems lack the capability to effectively verify and monitor hand hygiene practices in critical environments, such as hospitals and food production factories, where improper hand hygiene can lead to infections and contamination.
Innovation Solution
A hand washing system that includes an integrated reagent and water dispensing unit with a personal identification module, sensors to monitor hand washing sequences, and a controller to manage operations and store data, ensuring compliance with regulatory requirements by dispensing the appropriate cleaning agents and water based on individual profiles and hand washing sequences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If health authorities issue recommendations and guidelines for handwashing practices, then hand hygiene standards are established, but there is no system to verify and confirm that employees have washed hands in the proper way
Solution Approach 1:
The system enables automatic self-verification of handwashing compliance through sensors that detect proper technique and duration, eliminating the need for manual supervision while ensuring reliable verification of hygiene practices
Solution Approach 2:
Manual verification methods are replaced with automated sensor-based detection systems that use optical, capacitive, or other sensing technologies to monitor handwashing actions, reducing system complexity while improving reliability
2Reliability
If a monitoring system is implemented to verify handwashing compliance, then hand hygiene practices can be controlled and monitored, but the system complexity and cost increase
Solution Approach 1:
The monitoring system is designed to perform multiple functions including detection, verification, data logging, and reporting within a single integrated platform, reducing overall system complexity while maintaining comprehensive compliance monitoring capabilities
Solution Approach 2:
The system provides real-time feedback to users about their handwashing technique and duration, enabling self-correction and reducing the need for complex supervisory mechanisms while ensuring reliable compliance verification
3Loss of substance
If the system controls the amount of reagent and water dispensed, then resource usage is optimized, but the dispensing mechanism becomes more complex
Solution Approach 1:
The system pre-configures optimal dispensing parameters based on detected handwashing duration and technique, automatically adjusting reagent and water delivery to match actual needs, thereby reducing waste without requiring complex real-time control mechanisms
Solution Approach 2:
The dispensing mechanism dynamically adjusts flow rates and volumes based on real-time sensor feedback about handwashing progress, optimizing resource usage while maintaining a relatively simple dispensing structure through adaptive control
4Measurement precision
If the system monitors the handwashing sequence and provides compliance scores, then proper technique is ensured, but the measurement and verification requirements increase
Solution Approach 1:
The handwashing process is divided into discrete detectable actions (wetting, lathering, rubbing, rinsing, drying), with sensors monitoring each segment separately, thereby enabling precise technique verification through manageable measurement components
Data Source
AI summary
A hand washing system, comprising a reagent and water dispensing unit connected to a server. The dispensing unit comprises a personal identification unit, a reagent dispenser, a connection to a water source, one or more sensors for monitoring the handwashing act, and a controller comprising processor and memory for operating the dispensing unit and for storing handwashing data parameters. The server receives and analyzes handwashing data parameters. When an individual approaches the dispensing unit the identification unit identifies the individual, the one or more sensors confirm that the individual's hands are at location apt for receiving reagent from the reagent dispenser and water for at least a predetermined amount of time and the processor sends the server handwashing data parameters.