Integrated Syringe Test Module for Safe Injection Fluid Analysis
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Solution Overview
Problem
Traditional methods for testing the composition of injectable fluids require additional equipment and are time-consuming, increasing the risk of contamination and unsafe administration.
Innovation Solution
A fluid test device integrated with a syringe, featuring a test module with a local test chamber that draws a sample of the injection fluid for testing while the fluid is being drawn into the syringe, using a check valve to control fluid flow and a test medium, such as a test strip, to indicate the presence or concentration of substances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional test methods (test strips, separation tests, drip tests) are used, then the composition of injectable fluids can be tested, but additional equipment is required and the process becomes time-consuming
Solution Approach 1:
The test module is integrated directly into the syringe assembly, merging the testing function with the administration device. The test chamber, check valve, and test medium are incorporated within the syringe structure, eliminating the need for separate testing equipment and reducing overall system complexity while maintaining reliable composition testing
Solution Approach 2:
The syringe assembly is designed to perform multiple functions: fluid administration and composition testing. The integrated test module allows the same device to both administer the injectable fluid and test its composition, making the system universal and eliminating the need for separate specialized equipment
2Reliability
If traditional test methods are used, then the composition of injectable fluids can be tested, but significant time is required for assembly and settling
Solution Approach 1:
The test module is pre-assembled and ready-for-use within the syringe, eliminating the need for separate assembly steps. The test medium is pre-positioned in the test chamber, and the check valve is pre-configured, allowing immediate testing upon fluid introduction without time-consuming assembly or settling periods
Solution Approach 2:
By combining the test module with the syringe assembly, the invention eliminates the sequential process of assembling separate testing equipment and then performing the test. The integrated design allows the test to begin immediately as fluid is drawn into the syringe, significantly reducing total test time
3Reliability
If traditional test methods are used, then the composition of injectable fluids can be tested, but samples may become contaminated requiring repeating the process
Solution Approach 1:
The check valve automatically controls fluid flow direction based on pressure differential, allowing fluid to enter the test chamber during suction stroke while preventing backflow during the expulsion stroke. This self-regulating mechanism eliminates contamination risks without requiring additional manual control or separate equipment
Solution Approach 2:
The integrated test module with built-in check valve creates a closed, controlled testing environment within the syringe. The check valve prevents cross-contamination between the test chamber and external environment, ensuring sample integrity throughout the testing process and eliminating the need for repeated testing due to contamination
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
Enables safe and effective local pre-injection testing without additional equipment, reducing contamination risks and administration time, and allowing for real-time detection of substances like opioids during normal use.
Implementation Method 1
A check valve can be configured to open, allowing fluid into a test chamber, while a plunger in the barrel of the syringe moves to draw fluid into the syringe. The check valve can be configured to close, preventing fluid from entering the test chamber, while the plunger does not move or moves to expel fluid from the syringe.
Implementation Method 2
When the sample is received by the test module and exposed to the test medium, the test medium is configured to indicate information about the sample.
Implementation Method 3
the test medium may include a test strip configured to detect the presence or concentration of a substance in the sample. At least a portion of the test strip can be configured to change to a color indicative of the presence or concentration of the substance in the sample.
Data Source
AI summary
Embodiments for local and safe testing of injection fluids by drawing a sample of injection fluid into a local test chamber while drawing fluid to be tested into a syringe assembly and testing the sample of the injection fluid are disclosed. A fluid test device can include a syringe assembly, a plunger assembly, and a test module. The test module can determine information about fluid in a syringe assembly when the fluid enters a test chamber in the test module. Fluid may enter the test chamber through a one-way valve while a plunger in the plunger assembly is moved in a suction stroke to draw fluid into an interior of the syringe assembly. Fluid may not enter or be expelled from the test chamber when the plunger does not move or is moved in a compression stroke to expel fluid from the syringe assembly.