Capillary Fluid Indicator for Compact Accurate Dosage Display
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Solution Overview
Problem
Existing fluid dispensing devices are cumbersome, lack accuracy, require significant space, and are costly, making them difficult to use and inaccessible for many users.
Innovation Solution
A visual indicator device comprising a bracelet with a transparent capillary chamber and a displacement member, responsive to measurable inputs, which minimizes space and provides a flexible, aesthetic, and reliable indication of fluid dosage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If automated fluid dosage devices are used, then fluid dispensing accuracy is improved, but device size and complexity increase making them cumbersome
Solution Approach 1:
The device is divided into distinct functional segments: a reservoir for fluid storage, a pump mechanism for controlled dispensing, a capillary indicator chamber for visual measurement, and a drive mechanism. This segmentation allows each component to be optimized independently while maintaining overall compactness, resolving the contradiction between accuracy and size.
Solution Approach 2:
The capillary indicator chamber is positioned within or adjacent to the pump mechanism, and the drive mechanism is integrated into the housing structure. This nesting arrangement allows multiple functional elements to occupy overlapping or adjacent spatial volumes, significantly reducing the overall device footprint while maintaining accurate fluid dosing capability.
2Measurement precision
If computerized pump devices are used, then fluid dosage control is improved, but device complexity and cost increase
Solution Approach 1:
The device replaces complex computerized control systems with a mechanical cam-driven pump mechanism. The cam profile is precisely engineered to provide the desired pump stroke and fluid dosing characteristics, eliminating the need for microprocessors, sensors, and electronic control circuits while maintaining accurate dosage control through pure mechanical means.
Solution Approach 2:
The mechanical cam mechanism automatically converts rotational motion into the precise reciprocating motion required for pump operation and fluid dosing. The system is self-regulating through the mechanical geometry of the cam and follower, requiring no external control electronics or power supply beyond what is needed to rotate the cam shaft, thereby reducing overall device complexity.
3Volume of moving object
If visual indicator devices are made compact, then device portability is improved, but readability and measurement accuracy deteriorate
Solution Approach 1:
The capillary indicator chamber utilizes the vertical dimension by positioning the fluid meniscus at different heights within the narrow capillary tube to indicate dosage levels. This vertical arrangement allows for clear visual differentiation of dosage amounts without requiring a large horizontal footprint, maintaining readability while achieving compact device dimensions.
Solution Approach 2:
The device employs color-coded indicators or colored fluid within the capillary chamber to enhance visual contrast and readability. Different colors may indicate different dosage levels or fluid types, allowing for quick and accurate visual assessment of the measured amount without requiring a large indicator scale, thus maintaining compactness while improving measurement precision.
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
The device offers a quick, readable, and cost-effective method for dispensing fluids like drugs or perfumes, adaptable to various body parts and objects, ensuring accurate and comfortable fluid administration.
Implementation Method 1
a transparent capillary chamber matched to an indicia having a primary length and a width less than the primary length
Data Source
AI summary
A device for fluid display comprising a fluid, wherein the fluid is displaced by an electrowetting process. The device is filled with at least 2 immiscible fluids, whereas one fluid is located within the electrical field generated by a reference electrode and a control electrode and partially within the electrical field generated by the same reference electrode and at least one second control electrode so that the electric activation of the second control electrode generates a deformation or movement of the fluid in the direction of the second control electrode. Also provided is a method of switching the control electrodes of the device above-mentioned device in a sequence so that a portion of the fluid is displaced within the device.