Portable Hand Hygiene Dispenser Locking and Zone Tracking

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Solution Overview

Problem

Existing hand hygiene dispenser monitoring systems are unable to effectively track usage events for portable dispensers in healthcare settings, leading to challenges in compliance monitoring and security issues such as theft, as they rely on costly RTLS infrastructure and lack secure mounting options.

Innovation Solution

A portable point-of-care dispenser system with ultra-low power RF transmission for tracking usage events and secure locking mechanisms, including undercut features to prevent unauthorized access, integrated with a docking unit for secure mounting, allowing for accurate zone assignment and theft prevention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If RTLS infrastructure is used to track portable dispensers, then position tracking capability is improved, but system cost and complexity increase significantly

Engineering Contradiction:
Improveposition tracking accuracyVSAvoidinfrastructure complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces complex RF triangulation infrastructure with simple RFID tags and readers. Instead of using multiple RF transceivers throughout the facility to triangulate dispenser position, the system uses RFID tags attached to portable dispensers that are read by RFID readers at fixed locations (sinks, counters, walls). This substitution dramatically reduces infrastructure complexity while maintaining position tracking capability.

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

2Reliability

If secure locking mechanisms are added to prevent theft, then security is improved, but ease of access for authorized users deteriorates

Engineering Contradiction:
Improvetheft preventionVSAvoidaccess convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The locking mechanism is integrated with the RFID reader system. When an authorized user presents their RFID card or badge, the system automatically unlocks the dispenser without requiring manual intervention. The lock and unlock functions serve themselves through automated RFID authentication, eliminating the need for separate manual locking/unlocking actions while maintaining security.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The security locking mechanism is merged with the RFID authentication system. The same RFID reader that identifies the dispenser location and tracks usage also controls the locking mechanism. This integration means that authorized users access the dispenser through a single RFID authentication action that simultaneously identifies them and releases the lock, combining security verification and access control into one unified system.

Inventive Principle:
Principle #5Merging (Combining)

3Measurement precision

If monitoring systems are implemented to track hand hygiene compliance, then compliance monitoring capability is improved, but system cost increases

Engineering Contradiction:
Improvecompliance tracking accuracyVSAvoidmonitoring system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The RFID system performs multiple functions simultaneously: it tracks dispenser position, monitors usage events, enables secure access control, and provides compliance data. Instead of implementing separate systems for each function (position tracking, usage monitoring, access control), the patent uses a single RFID infrastructure that accomplishes all these tasks, reducing overall system complexity and cost while maintaining comprehensive monitoring capability.

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

Data Source

PatentUS9920553B2Point-of-care hand hygiene dispenser having security features
Publication Date: 2018.03.20 DEB IP LIMITED
  • US9920553B2 patent drawing
  • US9920553B2 patent drawing
  • US9920553B2 patent drawing

AI summary

Various embodiments of a point-of-care hygiene dispenser and an electronic hand hygiene event monitoring system are disclosed. One embodiment is directed to point-of-care dispenser and a corresponding electronic monitoring system, wherein the point-of-care dispenser is movable between predetermined zones of interest. Another embodiment is directed to a secure point-of-care dispenser having corresponding dispenser cover and main body interlocks. A still further embodiment is directed to point-of-care dispensing system comprising a point-of-care dispenser having a dispenser cover and a main body, a locking mechanism configured to secure the dispenser covers with the main body in a closed condition, and a docking unit configured for mounting with the point-of-care dispenser.