Camera-Based Optical Code Detection for Medical Object Tracking
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Solution Overview
Problem
Medical care facilities face challenges in obtaining accurate operational metrics due to the inefficiencies and limitations of existing systems for monitoring medical procedures, personnel, and equipment, including high costs, user involvement burdens, and germ transmission issues with traditional methods.
Innovation Solution
A system comprising a camera and operational metrics device that generates digital images of detection areas to detect optical codes on medical objects, tracking their presence and duration, allowing for the generation of operational metrics data without requiring substantial user involvement and reducing germ transmission risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a laser scanner is used to scan patient identification bar codes, then information regarding patient time in room can be obtained, but substantial user involvement is required and germ transmission occurs
Solution Approach 1:
The system uses automatic optical code detection through camera imaging to capture medical object information without requiring medical personnel to manually scan codes. The camera system automatically detects optical codes on medical objects as they enter or leave the detection area, eliminating the need for user involvement in the scanning process while continuing to collect accurate time and presence data.
2Loss of information
If a laser scanner is used to scan patient identification bar codes, then information regarding patient time in room can be obtained, but germ transmission occurs
Solution Approach 1:
The system replaces the mechanical contact-based laser scanner with a non-contact optical imaging system. The camera captures images of the detection area and automatically detects optical codes on medical objects from a distance, eliminating the physical contact between scanning devices and medical objects that causes germ transmission, while maintaining accurate tracking of object presence and time data.
3Reliability
If RFID transmitters are provided on medical objects, then presence detection is possible, but it is difficult to retrofit existing objects and costs are prohibitively expensive
Solution Approach 1:
The system uses optical codes (visual copies) on medical objects instead of RFID transmitters. Optical codes can be printed or attached to existing medical objects without requiring electronic components, power sources, or complex integration. The camera system captures images of these optical codes and extracts presence and identification information, providing reliable detection capability while avoiding the high costs and difficulties of retrofitting RFID technology.
4Loss of information
If RFID detectors are used to detect RFID transmitters, then presence or absence information can be obtained, but movement detection within area is limited
Solution Approach 1:
The system transitions from RFID's one-dimensional presence/absence detection to two-dimensional spatial tracking using camera imaging. The optical code detection system not only detects whether medical objects are present but also determines their specific locations within the detection area by analyzing the position of detected codes in images. This enables comprehensive movement tracking and location monitoring that RFID technology cannot provide.
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 provides accurate and efficient operational metrics data on medical procedures, personnel, and equipment usage, enhancing operational efficiencies and cost management within medical care facilities while minimizing germ transmission.
Implementation Method 1
The first camera is configured to generate a first plurality of digital images of a first detection area during a first detection period
Data Source
AI summary
A system for generating operational metrics data for a medical care facility includes a first camera and an operational metrics device. The first camera generates digital images of a first detection area. The operational metrics device includes an optical code detector, a medical object detector, and an operational metrics generator. The optical code detector generates optical code detection data indicative of the presence or absence of optical codes within each of the digital images. Each of the optical codes is disposed on a respective medical object. The medical object detector generates medical object detection data indicative the presence or absence of each medical object within the first detection area. For each medical object, the operational metrics generator generates operational metrics data based at least partially on a determined amount of time that each medical object was present within the first detection area.