Auto-Injectable Medicament Delivery With Completion Feedback
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Solution Overview
Problem
Existing medicament delivery devices require multiple user actions and lack intuitive, ergonomic design, particularly for self-administration, and do not provide reliable confirmation of injection completion when used in areas where visibility is limited.
Innovation Solution
A medicament delivery device with a drive means, holding means, and feedback means that automatically expels medicament upon activation, providing audible, tactile, or visual confirmation of completion, and includes a tubular housing, activation member, and signal generating mechanism to ensure ergonomic handling and minimize human error.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the device requires multiple user actions for activation and operation, then the device can be controlled precisely, but the ease of operation deteriorates and user error risk increases
Solution Approach 1:
The drive means is pre-loaded and held in a pre-tensioned state by the holding means before use. The activation means is pre-configured to automatically trigger the drive means upon insertion, eliminating the need for separate activation steps. This preliminary preparation allows the device to operate with minimal user actions while maintaining precise control through the pre-engineered mechanical system.
2Ease of operation
If the device is used in areas where visibility is limited (e.g., waist, backside, buttocks), then patient comfort and accessibility improve, but the ability to detect and measure injection completion deteriorates
Solution Approach 1:
The device incorporates feedback means that interact with both the holding means and drive means to generate audible and/or tactile and/or visual signals indicating when medicament has been completely expelled. This feedback system allows patients to confirm injection completion without needing to visually monitor the device, enabling comfortable use in hidden areas while maintaining reliable detection of injection status.
3Productivity
If the device provides automatic medicament expulsion with minimal user interaction, then productivity and ease of operation improve, but the reliability of precise dosing may deteriorate
Solution Approach 1:
The drive means is pre-loaded with a specific amount of medicament and the holding means is pre-tensioned to deliver a precise, predetermined dose. The mechanical system is designed to expel the complete contents of the medicament container automatically, ensuring that the full intended dose is delivered without requiring user judgment or adjustment, thus maintaining both speed and precision.
Solution Approach 2:
The device is designed to automatically complete the entire medicament delivery process once activated. The drive means self-actuates through the mechanical connection with the activation means, and the feedback means automatically monitor and signal completion. This self-service mechanism eliminates human error in dosing while maintaining rapid delivery.
Data Source
AI summary
A medicament delivery device is presented having a drive configured to act on a medicament container for expelling a medicament; a holder configured to hold said drive in a pre-tensioned state; an activator configured to interact with said holder for releasing said drive from the pre-tensioned state; wherein the device further includes a feedback mechanism configured to interact both with said holder and with said drive for generating an audible and/or tactile and/or visual signal indicating that the medicament has been completely expelled.