RFID Medical Device Tracking System

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Solution Overview

Problem

Tracking and managing the location, calibration, and maintenance of medical devices in hospitals is inefficient and cumbersome, especially as they are moved between wards, leading to potential equipment loss and misuse.

Innovation Solution

A system that uses unique device identifiers and network connections to track the location of medical devices, including patient monitors and sensors, through a server-based system that integrates RFID technology, diagnostic capabilities, and notification subsystems to ensure proper configuration, calibration, and maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual tracking methods are used for medical devices, then device location information can be obtained, but the process is inefficient and time-consuming

Engineering Contradiction:

Improvetracking efficiencyVSAvoidtime for location tasks

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The patent replaces manual mechanical tracking methods with an automated electronic system using RFID tags and readers. The system automatically captures device locations through wireless communication, eliminating the need for manual recording and significantly improving tracking efficiency while reducing time consumption.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces RFID tags as intermediary objects attached to medical devices and RFID readers as intermediary detection devices. These intermediaries enable automatic identification and tracking of devices, serving as a bridge between physical devices and the digital tracking system, thereby resolving the inefficiency of manual tracking.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If manual tracking methods are used for medical devices, then device locations can be recorded, but the process is cumbersome and prone to errors

Engineering Contradiction:

Improvetracking accuracyVSAvoidtracking system complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces error-prone manual tracking with automated RFID-based electronic tracking. The system uses wireless communication between RFID tags on devices and readers to automatically capture and record location data, eliminating human errors while maintaining manageable system complexity through standardized protocols.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent implements self-service tracking where medical devices equipped with RFID tags automatically provide their own identification and location information when detected by readers. The system autonomously records tracking data without requiring human intervention, improving reliability while keeping the operational process simple.

Inventive Principle:

Principle #25Self-service

3Productivity

If RFID tracking system is implemented, then tracking efficiency is improved, but system complexity increases

Engineering Contradiction:

Improvetracking efficiencyVSAvoidsystem complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent implements a universal RFID tracking infrastructure that can track multiple types of medical devices (infusion pumps, ventilators, monitors, etc.) using the same system architecture. The RFID tags and readers serve multiple functions including location tracking, device identification, and maintenance scheduling, improving efficiency without proportionally increasing complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent segments the tracking system into independent modular components: RFID tags attached to individual devices, RFID readers positioned in locations, and a central server for data management. This segmentation allows the system to scale incrementally and maintain manageable complexity while achieving high tracking efficiency through coordinated operation of discrete elements.

Inventive Principle:

Principle #1Segmentation

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 system efficiently tracks and manages medical devices, ensuring they are properly accounted for, calibrated, and maintained, reducing the time and effort required for location and maintenance tasks, while preventing equipment loss and misuse.

Implementation Method 1

The medical device includes a radio frequency identification (RFID) tag. A reader reads the RFID tag to determine a current location of the medical device.

Methodology Applied

Scientific EffectRFID (Radio Frequency Identification): Electromagnetic Induction

Data Source

PatentUS8334768B2Systems and methods for determining a location of a medical device

Publication Date: 2012.12.18 SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD

AI summary

Medical devices to be located on a network include a unique identifier, which may be transmitted to a server over the network. The network may have a plurality of network connection points. The server may include a location subsystem configured to store a location of each of the plurality of network connection points. The server may also include a device tracking subsystem configured to store a last known device location based on the unique device identifier. The last known location of the medical device may be updated when the medical device is connected to the network based on the location of the one of the plurality of network connection points used to transmit the unique device identifier.