Syringe Packaging System Adapting to Variable Dose Sizes
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Solution Overview
Problem
Current automation systems for packaging oral syringes in hospital pharmacies are limited, leading to time-consuming, labor-intensive, and error-prone processes, particularly in preparing patient-specific doses, due to the variety of syringe sizes and medication forms, which increases the risk of medication errors.
Innovation Solution
A semi-automated Oral Syringe Packaging System (OSPS) that integrates manual and automated steps, using a local computer network to guide operators through the preparation and tracking of prescriptions, including a Medication Container Orientation and Log-In Process and Batch Fulfillment Process, utilizing adapter caps, barcode scanning, and robotic arms to ensure accurate filling, labeling, and packaging of oral syringes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual filling process is used for oral syringes, then flexibility in handling various syringe sizes and medication forms is maintained, but the process becomes time-consuming and labor-intensive
Solution Approach 1:
The system employs adjustable filling mechanisms that can dynamically adapt to different syringe sizes and medication viscosities. The filling apparatus includes variable speed motors and adjustable plunger speeds that can be programmed based on the specific syringe type and medication properties, allowing the automated system to maintain flexibility while improving productivity
Solution Approach 2:
The system changes operational parameters such as filling speed, plunger velocity, and sealing force based on the detected syringe type and medication characteristics. Sensors detect syringe dimensions and the system automatically adjusts filling parameters to optimize both speed and accuracy for each specific configuration
2Reliability
If manual filling process is used for oral syringes, then operators can visually inspect each syringe, but the process becomes error-prone due to human fatigue and distraction
Solution Approach 1:
The system replaces manual visual inspection with automated optical sensing and verification systems. Optical sensors and cameras detect fill levels, plunger positions, and syringe labeling accuracy, eliminating human error while maintaining high reliability. The automated verification system provides digital confirmation of each filling operation
Solution Approach 2:
The system incorporates real-time feedback mechanisms where sensors monitor filling progress and automatically detect deviations from target fill volumes. The system provides immediate feedback through visual or audible alerts and can automatically correct minor deviations by adjusting plunger speed or position, ensuring consistent medication accuracy
3Productivity
If automated filling system is implemented, then productivity increases, but the system becomes complex and difficult to operate
Solution Approach 1:
The system automatically identifies syringe types, selects appropriate filling parameters, and configures itself for different medication types without requiring operator intervention. The automated syringe recognition system reads barcodes or optical codes on syringes and automatically loads the corresponding programming, making the system self-configuring and easy to operate
Solution Approach 2:
The system is designed as a universal platform that can handle multiple syringe sizes, types, and medication viscosities through a single interface. The modular design allows different filling heads and adapters to be quickly swapped, and the control system automatically adapts to the configured setup, reducing operational complexity
4Measurement precision
If various syringe sizes are used for different pediatric doses, then accurate patient-specific dosing is achieved, but the variety of syringe configurations makes automation difficult
Solution Approach 1:
The system divides the filling process into discrete, independently controllable segments corresponding to different syringe size ranges. Each segment has pre-programmed parameters optimized for its size range, and the system automatically routes syringes to the appropriate segment based on detected dimensions, managing complexity through modular organization
Solution Approach 2:
The system pre-configures filling parameters for different syringe sizes and medication types before the actual filling process. Syringe templates and parameter sets are prepared in advance and stored in the system memory, allowing rapid automatic configuration without adding operational complexity during the filling process
Data Source
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AI summary
A semi-automated system (100) suitable for use in a hospital setting for filling patient- specific liquid prescriptions from bulk medicine containers (104) into oral syringes (S) for administration on a just-in-time basis. The system enables hospital pharmacists to simplify and streamline their task, increasing the number of prescriptions that can be filled in a day, improving patient safety and care by minimizing medication errors and the consequences that ensue.