Concentration-Marked Syringes for Accurate Dry-Drug Reconstitution
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Solution Overview
Problem
Traditional syringes used for reconstituted drugs and medicines in dry form lack clear indication of drug units, leading to confusion and potential errors due to varying concentration levels and different standard units among manufacturers, complicating proper reconstitution and administration.
Innovation Solution
Syringes are designed with markings indicating specific reconstitution concentrations, allowing practitioners to select and use syringes marked according to the desired concentration, ensuring accurate measurement and administration of drug units, using visual indicia such as numbers, rings, or colors to differentiate concentrations and manufacturing source identifiers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional syringes are used for reconstituted drugs without concentration markings, then the syringe structure remains simple, but measurement precision and reliability of drug administration are compromised due to confusion from varying concentration levels
Solution Approach 1:
The syringe is pre-marked with concentration-specific indicia before use, allowing the practitioner to select the appropriate syringe based on the drug's reconstitution concentration. This preliminary configuration eliminates the need for complex calculations or conversions during administration, directly improving measurement precision while keeping the device relatively simple.
Solution Approach 2:
Different syringes are marked with different visual indicia (numbers, rings, colors) corresponding to specific concentration levels. This local differentiation allows practitioners to quickly identify and select the syringe matching the drug concentration, resolving the measurement precision issue without requiring a single complex syringe design.
2Reliability
If syringes are marked with multiple concentration indicators, then reliability of drug administration improves, but ease of operation decreases due to the need to match syringe markings with drug concentrations
Solution Approach 1:
The syringe incorporates visual indicia such as color-coded rings, numbers, or patterns on the barrel that correspond to specific reconstitution concentrations. These visual cues enable rapid, intuitive matching between the syringe and the drug concentration, maintaining ease of operation while significantly improving reliability through reduced selection errors.
3Productivity
If standardized concentration markings are implemented on syringes, then productivity of drug administration increases by eliminating conversions, but adaptability decreases when dealing with drugs of varying concentrations from different manufacturers
Solution Approach 1:
The syringe design incorporates multiple concentration indicia (different numbers, ring patterns, or colors) on a single syringe barrel, allowing it to serve multiple functions across different drug concentration standards. This universal design enables the syringe to adapt to various manufacturers' concentration systems while maintaining standardized visual communication, thereby improving both productivity and adaptability.
Data Source
AI summary
A method of reconstituting and administering an injectable fluid distributed to practitioners in dry-form includes receiving a drug or medicine in dry form, selecting a reconstitution concentration for the drug or medicine, reconstituting a desired number of units of the drug or medicine by adding diluent to the dry-form drug or medicine, selecting a syringe having units marked according to the selected reconstitution concentration, drawing up a desired number of drug or medicine units using the selected syringe, and administering a desired number of units according to the unit markings on the selected syringe. Such a syringe includes a barrel, a plunger assembly that has a plunger handle and a piston, a needle, and a needle cap. The syringe includes a visual indicia, representing a first drug concentration contained in the barrel, that is distinguishable from a corresponding visual indicia, on a second syringe, representing a second drug concentration.