Medicament Delivery Device Visual Instruction Alignment
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Solution Overview
Problem
Current medicament delivery devices are not intuitive for users to operate correctly, often requiring extensive instruction manuals and user training, and existing instruction arrangements are difficult for users to see.
Innovation Solution
A sub-assembly of a medicament delivery device featuring a main body with a main window for observing the medicament, multiple medicament delivery instructions along the exterior, and a plunger rod with engagement members that guide the user through intuitive movements by aligning visual indications with instructions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If instruction signs are placed in a narrow space between thumb pad and device body, then the device structure remains compact, but the instructions become difficult for users to see
Solution Approach 1:
The patent moves the instruction display from a narrow lateral space to the longitudinal dimension by using the plunger rod's travel path. Instructions are positioned along the length of the device body, and the plunger rod has visual indicators that move past these instructions during operation, allowing users to see both the instructions and the current operation status in the same visual field.
Solution Approach 2:
The plunger rod serves as an intermediary element that carries visual indicators (such as colored bands or markers) which move past the instruction signs positioned on the device body. This intermediary mechanism allows the instructions to be displayed in a location that is easily visible while still maintaining the compact device structure.
2Reliability
If extensive instruction manuals and user training are provided, then users can operate the device correctly, but the process becomes time and resource-consuming
Solution Approach 1:
The device is designed to be self-instructing through visual feedback mechanisms. As the user operates the plunger rod, visual indicators move past instruction signs that provide real-time guidance on the correct operation sequence. This allows users to learn and operate the device correctly without extensive external training or instruction manuals.
Solution Approach 2:
The device provides continuous visual feedback through the movement of plunger rod indicators past fixed instruction signs. This feedback mechanism guides users through the correct operation sequence in real-time, reducing the need for prior training and ensuring reliable operation.
3Ease of operation
If the plunger rod is made movable along the main body length, then medicament delivery is enabled, but the operation becomes non-intuitive requiring instructions
Solution Approach 1:
The patent adds a visual dimension to the linear movement of the plunger rod by positioning instruction signs along the length of the device body and using visual indicators on the plunger rod that move past these signs. This transforms the simple linear motion into an informative visual sequence that guides users intuitively through the operation.
Solution Approach 2:
The plunger rod incorporates visual indicators such as colored bands or markers that change position relative to the instruction signs during operation. These color-coded visual elements provide intuitive guidance, allowing users to understand the current operation stage without needing to read detailed instructions.
Data Source
AI summary
The present disclosure relates to a sub-assembly of a medicament delivery device comprising a main body configured to accommodate a medicament, a plunger rod being moveable inside the main body along a length of the main body upon a user applying force to the plunger rod, and wherein the main body comprises a window through which the plunger rod is observable upon moving along said length, the main body further being provided with medicament delivery instructions along the length of an exterior of the main body, wherein the medicament delivery instructions are configured to instruct the user to move the plunger rod further into the main body to align a first visual indication of the plunger rod observable through said window with a next medicament delivery instruction to be performed along the length of the main body.