Multi-tag RFID Patient Identification System for Sanitation Compliance
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Solution Overview
Problem
In healthcare and other fields, there is a significant challenge in ensuring proper sanitation protocols are adhered to, particularly in preventing the spread of diseases, as existing methods lack effective monitoring and compliance tracking systems.
Innovation Solution
A multi-tag identification system is implemented, comprising patient identification devices with RFID tags and support structures, along with standoff RFID readers, to monitor and verify sanitization protocols in real-time, ensuring healthcare workers follow hand-sanitization protocols before and after patient encounters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional single-tag identification systems are used, then the device complexity is low, but the reliability of patient identification and sanitation monitoring is insufficient
Solution Approach 1:
The identification system is segmented into multiple independent RFID tags (e.g., wristband tag, medical record tag, equipment tag) that can be separately attached to different locations or items associated with the patient. Each tag contains identification information and can be independently read by the monitoring system, ensuring that patient identity is verified through multiple data points rather than a single point of failure.
Solution Approach 2:
The patent implements a hierarchical tagging structure where primary patient identification tags contain or reference secondary tags for specific medical records, treatment protocols, or equipment associations. This nested arrangement allows the system to maintain a core identification function while layering additional monitoring capabilities within the same physical structure.
2Productivity
If real-time monitoring of sanitation protocols is implemented, then the productivity of infection prevention is improved, but the loss of time for system operation and data tracking increases
Solution Approach 1:
The RFID monitoring system operates continuously in the background without requiring active user intervention. Once the multi-tag system is established, readers automatically and continuously scan for tag presence and exchange data, maintaining constant surveillance of sanitation protocol compliance without adding operational steps or time requirements to healthcare workflows.
Solution Approach 2:
The system performs self-monitoring through automatic tag detection and data logging. The RFID readers autonomously detect tag presence, verify identification information, and record compliance data without requiring manual data entry or system intervention. This self-service capability eliminates time loss associated with manual monitoring while maintaining continuous surveillance.
3Measurement precision
If multiple tags are used for comprehensive patient identification, then the measurement precision of patient identity verification is improved, but the difficulty of detecting and measuring tag signals increases
Solution Approach 1:
Each RFID tag is configured with specific local characteristics including unique identification codes, frequency assignments, or signal modulation patterns. The monitoring system is calibrated to recognize these localized tag qualities, allowing precise identification of each tag's purpose and origin. This local differentiation enables the system to distinguish between multiple tags and accurately interpret their individual information without signal confusion.
Solution Approach 2:
The patent introduces an intermediary processing layer between the multiple RFID tags and the central monitoring system. This intermediary component (integrated into the reader or gateway) manages tag signal reception, separates overlapping signals, validates tag authenticity, and consolidates information from multiple tags into a unified patient identification record, simplifying the detection process despite the presence of multiple tags.
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
This system enhances compliance by providing real-time monitoring and data tracking, reducing the risk of nosocomial infections and improving sanitation standards in healthcare settings and other facilities.
Implementation Method 1
a plurality of tags, each of the tags being configured to produce a wireless identification signal in response to an interrogation signal
Data Source
AI summary
Systems, apparatuses, methods, and software for monitoring compliance of sanitizees (e.g., health care workers, food service workers, sanitization/janitorial workers etc.) with sanitization protocols to be followed for encounters with sanitization-protocol targets (e.g., patients, food-preparation areas, health care facilities/appurtenances, restrooms, etc.). In one example, a system includes sanitization verification systems located close to the targets and mobile node devices issued to the sanitizees. Each verification system can be configured to test the efficacy of sanitization procedures performed by the sanitizees prior to encountering a target, to provide authorizations, via the node devices, to the sanitizees to proceed with target encounters, and to open monitoring sessions during which the node devices record information concerning interactions with the targets. The node devices are configured to annunciate sanitization statuses of the sanitizees throughout a work period as the sanitizees continually interact with verification stations and encounter targets.