Syringe Pressure Detection Device for Injection Placement
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Solution Overview
Problem
Current methods for precise injection of medications, such as hyaluronic acid for osteoarthritis and epidural anesthesia, lack proper guidance, leading to improper placement and associated complications like dural punctures and accidental intravascular injectate, which can result in severe health issues.
Innovation Solution
A pressure detection device that is a small, sterile, disposable, battery-powered attachment to a standard syringe, which includes a pressure transducer, microprocessor, and LED, allowing for real-time pressure monitoring and alerting the physician when the needle is correctly positioned for injection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pressure detection device is added to syringe, then injection placement precision is improved, but device complexity increases
Solution Approach 1:
The pressure detection device is nested within the syringe structure, with the pressure transducer, microprocessor, and LED integrated into a compact assembly that fits inside or on the syringe barrel. This nesting approach allows the complex functionality to be contained within a small form factor that does not significantly increase the overall device size or complexity from the user's perspective.
Solution Approach 2:
Multiple functional components (pressure transducer, microprocessor, power source, LED indicator) are merged into a single integrated pressure detection device that attaches to the syringe. This consolidation provides precise pressure monitoring and injection placement guidance while maintaining a unified, manageable device structure rather than requiring separate independent components.
2Measurement precision
If pressure transducer and microprocessor are integrated, then measurement capability is improved, but device size increases
Solution Approach 1:
The pressure transducer replaces traditional mechanical pressure measurement methods with a more compact electromechanical sensor that converts pressure directly into electrical signals. This substitution enables precise pressure measurement while maintaining a small form factor, as electronic sensors require significantly less space than mechanical gauge systems.
Solution Approach 2:
The microprocessor and other electronic components are integrated into a compact nested arrangement within the device housing, allowing the measurement capabilities to be concentrated in a small volume that does not significantly increase the overall device size.
3Reliability
If real-time pressure monitoring is implemented, then injection safety is improved, but energy consumption increases
Solution Approach 1:
The pressure monitoring system operates by taking periodic pressure measurements and comparing them against predetermined pressure profiles for correct injection placement. The microprocessor processes pressure data at key intervals during needle insertion and medication injection, rather than continuously, thereby maintaining real-time monitoring capability while minimizing energy consumption from the battery power source.
Solution Approach 2:
The system provides feedback through the LED indicator based on pressure measurements, allowing the practitioner to adjust needle placement in real-time. This feedback mechanism enhances injection safety by enabling immediate correction of improper placement while using energy efficiently through event-triggered rather than continuous processing.
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 precise placement of injections, reducing complications like misplaced needles, infections, and tissue trauma by providing accurate pressure feedback during the injection process, thereby enhancing treatment efficacy and safety.
Implementation Method 1
The device may include a pressure transducer, a power source, a control microprocessor, an interface to the user such as a light emitting diode (LED)
Implementation Method 2
an interface to the user such as a light emitting diode (LED)
Data Source
AI summary
A device may include a first locking mechanism configured to connect a first end of the device to a needle, a second locking mechanism configured to connect a second end of the device to a syringe, a pressure transducer, a microprocessor and a light emitting diode. The pressure transducer may be configured to measure a first pressure at a first time and a second pressure at a second time. The microprocessor may be configured to receive the first pressure and the second pressure from the pressure transducer, determine a pressure difference between the first pressure and the second pressure, and determine a time difference between the first time and the second time. The light emitting diode may be configured to signal when the needle is properly situated based on the pressure difference and the time difference.