Pharmacy Dispensing System with Scan-Verified Locks
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Solution Overview
Problem
Manual dispensing of pharmaceutical products in pharmacies often results in human errors, leading to incorrect drugs or quantities being dispensed, which can be dangerous for patients.
Innovation Solution
A dispensing system featuring individually lockable storage bins with actuators, a database associating bin identifiers with product codes, and a dispensing server that requires matching scan data to send unlock signals, ensuring accurate product selection and dispensing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual picking of drug packages from storage bins is used, then ease of operation is improved, but reliability deteriorates due to human error in selecting wrong drugs or quantities
Solution Approach 1:
The patent replaces the manual mechanical picking system with an automated control system that uses barcode scanning, database lookup, and electronic lock actuation. The dispensing server automatically verifies product-bin associations and controls lock mechanisms, eliminating human error in drug selection while maintaining operational simplicity through user-friendly interfaces.
Solution Approach 2:
The system enables self-service functionality where the dispensing server automatically performs verification, validation, and lock control without requiring manual intervention. The system self-checks product-bin associations through database queries and automatically actuates locks based on verified match criteria, reducing reliance on human judgment while preserving ease of use.
2Reliability
If individually lockable storage bins with actuators and scan verification are implemented, then reliability is improved by preventing erroneous picking, but device complexity increases
Solution Approach 1:
The dispensing server performs multiple functions including receiving product selections, scanning barcodes, querying the database, verifying associations, and actuating locks. The database serves both storage and verification purposes. This multi-functionality consolidates complexity into centralized components rather than distributing it across individual bins, making the system more manageable despite increased overall complexity.
Solution Approach 2:
The patent introduces a database as an intermediary layer between products and storage bins, storing and verifying associations. The dispensing server acts as a mediator that coordinates between the user interface, database, and lock mechanisms. These intermediary components abstract the complexity, providing a clear verification workflow that improves reliability while organizing system complexity into manageable layers.
3Manufacturing precision
If scan data verification and matching is required before unlocking bins, then manufacturing precision is improved in terms of accurate product-bin association, but productivity decreases due to additional verification steps
Solution Approach 1:
The system performs preliminary actions by pre-storing product-bin associations in the database and pre- verifying matches before lock actuation. The dispensing server queries the database in advance to determine the correct bin for each product, and only after verification does it proceed to unlock. This preliminary verification ensures accuracy while streamlining the subsequent dispensing process.
Solution Approach 2:
The system implements feedback through the verification workflow where scan data is compared against database records, and lock actuation is contingent on match confirmation. This feedback mechanism ensures accuracy by providing real-time verification, while the automated nature of the feedback loop minimizes manual intervention time, balancing precision with productivity.
Data Source
AI summary
There is disclosed a dispensing system for pharmaceutical products, the dispensing system comprising: a plurality of individually lockable storage bins for storing respective pharmaceutical products, each storage bin comprising a lock coupled to an actuator; a database which associates respective bin identifiers with respective product codes of the pharmaceutical products; and a dispensing server comprising a dispensing module which is configured to: receive a selection of one of said pharmaceutical products; receive scan data indicative of a product code for the selected product; determine, from said database, a bin identifier associated with the product code; and send an unlock signal to the actuator of a storage bin corresponding to said bin identifier.