Flowable Drug Applicator With Tactile Metered Dosing
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Solution Overview
Problem
Existing delivery systems for flowable pharmaceutical preparations, particularly for oral, topical, and vaginal applications, lack accuracy, precision, and user-friendly features such as visual, tactile, and metered dosing mechanisms, making it difficult for patients, especially the visually impaired, to administer correct dosages, and they often fail to prevent evaporation and contamination.
Innovation Solution
A unidirectional rotatable platform with visual, audible, and tactile elements that interact with major and minor side ticks to deliver calibrated volumetric amounts of flowable compositions, featuring a bi-audible and bi-tactile mechanism, and adapters for connecting jar dispensers to cavity applicators, ensuring precise dosing and preventing evaporation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If standard vaginal applicators with printed dosing rulers are used, then patients can see dosage markings, but visually impaired patients cannot read the faint printed numbers and cannot administer accurate dosages
Solution Approach 1:
The patent applies color-coded segments on the plunger that change or differentiate in color to indicate various dosage levels. These color changes provide visual feedback that is easily distinguishable for visually impaired patients, replacing the traditional faint printed numbers with vibrant, contrasting color indicators that can be detected through color vision or associated tactile markers.
Solution Approach 2:
The patent incorporates tactile feedback mechanisms including raised tactile markers, audible clicks, and haptic responses that provide real-time feedback to patients during the dosing process. This feedback system allows visually impaired patients to sense dosage levels through touch and sound, enabling accurate dosage administration without relying on visual reading of printed numbers.
2Measurement precision
If commercially available delivery systems are used, then basic medication delivery is possible, but accuracy and precision of dosing are insufficient
Solution Approach 1:
The patent divides the plunger into multiple color-coded segments, each representing a specific dosage level. This segmentation allows patients to easily identify and select the correct dosage by observing which segment is visible or by feeling the corresponding tactile marker, thereby improving dosage accuracy without requiring complex measurement mechanisms.
Solution Approach 2:
The patent enables patients to self-administer accurate dosages through an intuitive interface that requires no specialized training or complex operations. The color-coded segments and tactile markers allow patients to independently and accurately determine the correct dosage level, eliminating the need for healthcare provider assistance while maintaining high dosing precision.
3Measurement precision
If traditional applicator designs are used, then basic functionality is provided, but feedback mechanisms for proper dosing are non-existent
Solution Approach 1:
The patent incorporates multiple feedback mechanisms including visual feedback through color-coded segments, tactile feedback through raised markers and haptic responses, and audible feedback through clicking sounds. These feedback mechanisms provide real-time confirmation to patients that the correct dosage has been selected and administered, eliminating the need for complex verification procedures while ensuring dosing accuracy.
Solution Approach 2:
The patent integrates multiple feedback modalities (visual, tactile, audible) into a single unified system that serves both dosing indication and verification functions. This multi-functional approach provides comprehensive dosage confirmation through different sensory channels, enhancing reliability without requiring separate complex verification mechanisms.
4Measurement precision
If manual dosing methods are used, then simple administration is possible, but accurate and precise dosing cannot be achieved
Solution Approach 1:
The patent uses color-coded segments on the plunger that provide immediate visual indication of dosage levels. Patients can easily identify the correct dosage by observing the color or position of segments, eliminating the need for complex measurement calculations or interpretations while maintaining high dosing accuracy.
Solution Approach 2:
The patent provides real-time tactile and audible feedback that confirms dosage selection and administration. This feedback mechanism guides patients through the dosing process step-by-step, ensuring accurate dosing while keeping the operation simple and intuitive through sensory cues that require no specialized knowledge.
Data Source
AI summary
A transdermal delivery apparatus for delivering specific desired quantities of cream-base medicament or any flowable composition is disclosed. The apparatus comprises a revolving platform, a threaded screw-complex, a house, an applicator pad, and a safety cap. The revolving platform produces audible and tactile sensations upon interaction with projections from the house. The threaded screw-complex interacts with an elevator to transport the medicament upwards. The house confines an inner chamber to store the medicament. The applicator pad comprises a center outlet where the composition exits the chamber.