Bidose Fluid Dispenser Visual Indicator Mechanism
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Solution Overview
Problem
Bidose fluid dispenser devices often fail to reliably indicate to users when one or both doses have been dispensed, leading to potential under-dosing or over-dosing, especially when administering medications to different nostrils, resulting in ineffective absorption or loss of the active ingredient.
Innovation Solution
A fluid dispenser device with a movable indicator that cooperates with two viewing windows on the dispensing head, changing visibility or color after each dose is dispensed to clearly indicate the completion of each dose, ensuring the user knows when each dose has been administered.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a bidose fluid dispenser device is used without a visual indication system, then the device structure remains simple, but the user cannot reliably know whether one or two doses have been dispensed, leading to potential under-dosing or over-dosing
Solution Approach 1:
The patent employs color-changing indicators (e.g., colored zones that change from visible to hidden or change color) to provide clear visual feedback to users about dosing status. This allows users to reliably distinguish between 0, 1, or 2 doses dispensed without complex mechanical or electronic systems, thus improving dosing accuracy while maintaining device simplicity
Solution Approach 2:
The patent introduces an intermediary visual indication system (indicators, windows, colored zones) that mediates between the dispensing mechanism and the user. This intermediary provides reliable information about dosing status without requiring the user to understand or track the complex internal mechanics of the bidose device, thereby improving reliability without significantly increasing device complexity
2Productivity
If the device includes a piston mechanism for bidose dispensing, then two doses can be dispensed, but it becomes difficult for the user to track how many doses have been dispensed
Solution Approach 1:
The patent implements visual feedback mechanisms (indicators that move or change appearance after each actuation) that provide immediate information to the user about the dosing status. After the first actuation, the first indicator becomes visible or changes; after the second actuation, the second indicator becomes visible or changes. This feedback loop prevents information loss about how many doses have been dispensed while maintaining the efficient piston-based bidose dispensing capability
Solution Approach 2:
The patent divides the visual indication system into separate segmented indicators (first indicator for first dose, second indicator for second dose) that can independently show the status of each dose. This segmentation allows users to clearly track each dose separately, preventing confusion about how many doses have been dispensed while maintaining the productivity of the piston mechanism
Data Source
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AI summary
A fluid product dispensing device comprising a tank (10) containing at least two doses of fluid product, a dispensing member (20), such as a piston, slidably mounted in said tank (10) to dispense fluid product, a dispensing head (30) provided with a dispensing orifice (31), said head (30) being movable relative to said tank (10) in order to move said actuating member (20) in said tank (10) and thus dispense fluid product through said dispensing orifice (31), said dispensing head (30) comprising at least two viewing windows (35, 36), said device comprising a mobile indicator (40) together with said tank (10), said indicator (40) cooperating with a respective viewing window (35, 36) after each actuation of the device.