Auto-Injector Sensing Control to Prevent Wet Injections
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Solution Overview
Problem
Existing auto-injection devices lack safety features and digital capabilities, leading to incomplete medication administration, accidental needle sticks, and reduced therapy compliance due to inefficiencies in delivering the full dose to the patient.
Innovation Solution
A medicament delivery system with integrated detection elements and a controller that regulates the actuation mechanism based on sensor outputs to ensure complete dose delivery and prevent wet injections, featuring a stopper mechanism and various sensing technologies to monitor and control the injection process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If traditional mechanically spring-loaded auto-injection devices are used, then automation of drug delivery is achieved, but safety features and digital capabilities are lacking
Solution Approach 1:
The patent replaces purely mechanical spring-loaded actuation with an electronically controlled system that uses a motorized actuator and digital sensors to regulate the injection process, thereby enhancing safety and reliability while maintaining automation
Solution Approach 2:
The patent incorporates detection elements that provide real-time feedback on injection progress, needle position, and dose delivery status to a controller, enabling closed-loop control that improves safety and prevents errors
2Ease of operation
If traditional auto-injection devices are used, then convenience of self-administration is achieved, but incomplete medication administration and reduced therapy compliance occur
Solution Approach 1:
The detection elements monitor injection progress and provide feedback to ensure complete dose delivery, alerting the patient if the injection is incomplete or if the needle is removed prematurely, thereby ensuring reliable medication administration
Solution Approach 2:
The electronic control system replaces mechanical spring-loaded mechanisms with programmable motorized actuation that can precisely control injection speed, pause, and completion, ensuring reliable dose delivery while maintaining ease of use
3Device complexity
If traditional auto-injection devices are used, then simplicity of mechanical system is maintained, but advanced digital capabilities and wet injection prevention are lacking
Solution Approach 1:
The detection elements provide real-time feedback on injection status and needle position, enabling the controller to detect and prevent wet injections by stopping medication flow if the needle is removed or improperly positioned
Solution Approach 2:
The patent introduces electronic control systems with detection elements and processors that replace simple mechanical systems, enabling wet injection prevention through digital monitoring and control while maintaining manageable device complexity
Data Source
AI summary
In an embodiment, a medicament delivery system is provided. The medicament delivery system includes a container for storing a medicament prior to use, the container having a first end and a second end, an injection member in fluid communication with the container, an actuation mechanism associated with the container and configured to deliver the medicament from the container through the injection member when the actuation mechanism is activated. The medicament delivery system further includes at least one detection element associated with the system, wherein in a first mode of operation of the system, medicament is delivered through the injection member and in a second mode of operation of the system, medicament is not delivered through the injection member, and the mode of operation is dependent on an output from the at least one detection element.