Pharmacy Pouch Verification Using Dual-Spectrum Imaging
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Solution Overview
Problem
Current pharmacy packaging systems lack effective verification methods to ensure accurate counting and identification of pharmaceuticals within pouches, leading to potential errors in dispensing.
Innovation Solution
A pharmacy packaging system incorporating a camera system capable of capturing images in both visible and infrared spectra, combined with light sources for illumination, and a processor to generate images that verify the number and type of pills in pouches, providing a dashboard for real-time monitoring and comparison against expected contents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional verification methods are used for pharmaceutical pouches, then the system is simpler and easier to operate, but the accuracy and reliability of verifying pill count and identification is insufficient
Solution Approach 1:
The verification system is divided into distinct functional modules: infrared imaging subsystem for pill detection, visible light imaging subsystem for label verification, illumination subsystem with separate infrared and visible light sources, and processing subsystem. Each module performs a specific function, allowing the complex verification task to be broken down into manageable components that can be independently optimized and maintained.
Solution Approach 2:
The patent introduces dual light sources (infrared and visible light) as intermediaries between the pharmaceutical pouch and the camera system. These light sources enable the camera to capture different types of information from the same pouch - infrared illumination reveals pill presence and count, while visible light illumination verifies labels and packaging integrity. This intermediary approach allows single-camera multi-functionality without requiring complex spectral analysis hardware.
2Reliability
If multiple verification methods are implemented to ensure accurate pill counting and identification, then verification reliability improves, but the time required for verification increases
Solution Approach 1:
The verification system employs periodic illumination switching between infrared and visible light sources, with each light source activated in sequence to illuminate the pouch for a brief period. The camera captures images during each illumination phase, and the processor rapidly analyzes both images. This periodic action allows comprehensive verification (pill count + label verification) to be completed in a single pass through the verification station, minimizing verification time while maintaining high reliability through multiple verification checks.
3Measurement precision
If dual spectrum imaging (infrared and visible) is used to verify pharmaceuticals, then the ability to detect and identify pills improves, but the cost and complexity of the system increases
Solution Approach 1:
The patent makes a single camera system universal by enabling it to capture both infrared and visible light spectra through the use of separate illumination sources. Instead of requiring specialized infrared cameras and visible light cameras, the system uses one camera that can detect both spectra when appropriate light sources are activated. This multi-functionality approach achieves dual-spectrum imaging capability while avoiding the costs and complexities of maintaining multiple specialized imaging devices.
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
Ensures high accuracy in verifying the correct number and type of pharmaceuticals in each pouch, reducing errors and enhancing the reliability of the packaging process.
Implementation Method 1
a first light source configured to output an infrared spectrum light
Implementation Method 2
a second light source configured to output a visible spectrum light
Data Source
AI summary
A method and verification system for verifying pharmaceuticals packaged within a pouch using a pharmacy packaging system. The method includes activating a first light source to illuminate the pharmaceutical pouch, capturing a first image of the pharmaceutical pouch while illuminated by the first light source, activating a second light source to illuminate the pharmaceutical pouch, and capturing a second image of the pharmaceutical pouch while illuminated by the second light source. The method further includes generating a third image based on the first image and the second image, generating a dashboard to simultaneously display first images, second images, and third images from a plurality of pharmaceutical pouches, providing a number of pills indication of a number of pills detected in the pouch against a number of pills expected in the pouch, and displaying the dashboard.