Syringe Dose and Position Measurement with Plunger Travel Sensors
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Solution Overview
Problem
Current syringe systems rely on subjective and less accurate methods, such as viewing graduations on the syringe body, to determine medication dose, lacking precise measurement and feedback for injection training and delivery.
Innovation Solution
The Syringe Dose and Position Apparatus (SDPA) integrates sensors and a controller to measure plunger travel accurately, track injection procedures, and provide feedback, including time, medication type, location, and user identity, using sensors like rotary potentiometers and inertial navigation systems, with wireless communication for data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sensors and controllers are integrated into the syringe system, then measurement precision and feedback capability are improved, but device complexity increases
Solution Approach 1:
The SDPA is integrated within the syringe structure by mounting it to the syringe flange or positioning it elsewhere on the syringe body. The apparatus nests sensors, controllers, and power sources within the existing syringe form factor, achieving precise measurement without significantly increasing external complexity
Solution Approach 2:
The SDPA performs multiple functions including measuring plunger travel, tracking injection procedures, providing real-time feedback, recording data, and enabling wireless communication. This multi-functionality consolidates what would otherwise require separate devices into a single integrated apparatus
2Reliability
If real-time feedback and data tracking are implemented, then injection procedure monitoring is improved, but loss of time for data processing and transmission occurs
Solution Approach 1:
The SDPA provides real-time feedback during injection procedures by continuously measuring plunger travel and transmitting data wirelessly. This immediate feedback loop enables real-time monitoring without significant time loss, as the system processes and transmits data continuously rather than in batches
Solution Approach 2:
The system replaces manual monitoring methods with automated sensors and wireless communication. This substitution eliminates the time required for manual data recording and processing, as the electronic system automatically captures, processes, and transmits injection data in real-time
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 precise measurement and recording of injection parameters, providing real-time feedback and analysis for improved training and delivery accuracy, reducing errors and ensuring compliance with regulatory standards.
Implementation Method 1
measure plunger travel accurately, track injection procedures, and provide feedback, including time, medication type, location, and user identity, using sensors like rotary potentiometers
Implementation Method 2
using sensors like rotary potentiometers and inertial navigation systems
Data Source
AI summary
An injection system can have a Syringe Dose and Position Apparatus (SDPA) mounted to a syringe. The SDPA can have one or more circuit boards. The SDPA can include one or more sensors for determining information about an injection procedure, such as the dose measurement, injection location, and the like. The SDPA can also include a power management board, which can be a separate board than a board mounted with the sensors. The syringe can also include a light source in the needle. Light emitted from the light source can be detected by light detectors inside a training apparatus configured to receive the injection. The syringe can have a power source for powering the sensors and the light source. The SDPA and the power source can be mounted to the syringe flange.