Oblong Medicinal Applicator Shaft for Uniform Canal Cream Coverage
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Solution Overview
Problem
Existing medicinal cream applicators for anal and vaginal canals are inefficient in uniformly covering the contours of these regions, often requiring assistance due to their circular cross-sections that fail to reach into folds and contours, making self-application difficult.
Innovation Solution
A medicinal dispenser with an oblong cross-sectional shaft and optional features like a medicine blocking ring, allowing for improved insertion and distribution of cream by rotating the shaft within the canal, ensuring even coverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a circular cross-section applicator is used, then the applicator can be easily manufactured with a simple shape, but it fails to reach into folds and contours of the anal or vaginal canal, resulting in poor coverage
Solution Approach 1:
The patent applies asymmetry by changing the applicator shaft cross-section from a circular shape to an oblong shape with flattened sides. This asymmetric design allows the applicator to conform to the contours and folds of the anal or vaginal canal, enabling the cream to be deposited more uniformly across the tissue surface while maintaining ease of manufacture through simple geometric modification
2Ease of operation
If a finger is used to spread medicinal cream, then the cream can be applied manually with some control, but it requires assistance from a second person, reducing ease of operation
Solution Approach 1:
The patent implements self-service by designing an applicator that enables independent self-application of medicinal cream. The oblong shaft with cream dispensing apertures allows the user to insert the applicator into the anal or vaginal canal and rotate it to distribute cream uniformly across the tissue surface without requiring assistance from another person
3Manufacturing precision
If the applicator shaft is rotated to coat the canal surface, then cream distribution improves, but leakage may occur due to improper positioning or excessive rotation
Solution Approach 1:
The patent applies parameter changes by modifying the geometric parameters of the applicator shaft, specifically the cross-sectional shape and the positioning of cream dispensing apertures. These parameter changes enable controlled rotation and positioning within the canal, allowing uniform cream distribution while preventing leakage through optimized aperture placement and shaft dimensions
Data Source
AI summary
A medicinal applicator that is defined by a base, a medicinal cream receiving port in the base, and a shaft extending along a shaft axis from the base and terminating at an applicator tip is useful in smearing medicinal cream in a person's colon. There is at least one exit aperture located along a portion of the shaft through which the cream can exit. The medicinal applicator has an unobstructed pathway is in communication with the receiving port and the exit aperture in addition to a stop plate that extends radially from the base delineating the base from the shaft. The shaft's outer shape is defined by an oblong cross section that is uniform along the entire length of the shaft.