Injection Feedback Mechanism for Self-Administered Medical Injectors
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Solution Overview
Problem
Conventional portable medical injection systems lack feedback mechanisms to inform patients about injection initiation and completion, leading to potential incomplete drug administration or excessive handling time.
Innovation Solution
A medical injection system with an automatic trigger mechanism that includes an actuator and click collar, generating injection initiation and completion feedback prompts through mechanical interactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a portable medical injection system is used for self-administration, then patient convenience and portability are improved, but the patient cannot be informed whether injection has been initiated or completed, leading to potential incomplete drug administration or excessive handling time
Solution Approach 1:
The patent implements a feedback mechanism through an actuator that generates audible click sounds at specific stages of the injection process. The actuator includes a click surface that contacts an impact plate to produce injection initiation feedback and another click surface that contacts the impact plate to produce injection completion feedback. This allows the patient to receive real-time auditory information about injection status without compromising portability or self-administration capability.
2Loss of information
If the injection system provides feedback mechanisms, then injection status information is improved, but the device complexity increases
Solution Approach 1:
The patent uses a mechanical intermediary system consisting of a click collar with click surfaces and an actuator with an impact plate. The click collar rotates during the injection process, and at specific rotational positions, the click surfaces contact the impact plate to generate audible feedback. This mechanical intermediary translates the complex internal injection mechanics into simple, reliable audible signals without requiring electronic components or complex control systems.
Solution Approach 2:
The feedback mechanism is self-actuating through the natural rotation of the click collar during the injection process. The click surfaces are positioned to automatically contact the impact plate at appropriate moments based on the mechanical movement of the injection system components, eliminating the need for external control or additional power sources.
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 accurate and convenient self-administration of medical fluids by providing intuitive feedback prompts for injection initiation and completion, improving user experience.
Implementation Method 1
the click surface contacts the impact plate to generate an injection initiation feedback prompt
Data Source
AI summary
A medical injection system is provided. The medical injection system includes an injection initiation feedback module. The injection initiation feedback module includes an actuator and a click collar, which comprise an impact plate and a click surface, respectively. The click collar further includes a click surface protrusion to restrict the click surface from contacting the impact plate. The actuator further includes an impact plate groove to accommodate the click surface protrusion at the initiation of injection and the click surface contacts the impact plate to generate an injection initiation feedback prompt.