Removable Cartridge Applicator for Precise Topical Agent Dispensing
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Solution Overview
Problem
Applying topical agents to hard-to-reach areas or for individuals with limited mobility can be difficult and imprecise, leading to inefficiency and potential misuse of expensive medications.
Innovation Solution
A removable cartridge applicator with a handle and actuator system that allows for precise dispensing of topical agents onto the skin, featuring a fluid path and applicator surface for targeted application, with options for ergonomic handling and refillability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a topical agent is applied manually without an applicator device, then the application process is simple, but the precision and accuracy of application to specific skin areas deteriorates
Solution Approach 1:
The applicator device is segmented into distinct functional components: a cartridge containing the topical agent, a plunger mechanism for controlled dispensing, and an applicator head with delivery surfaces. This segmentation allows each component to be optimized for its specific function while maintaining overall system precision.
Solution Approach 2:
The applicator device serves as an intermediary tool between the topical agent container and the skin surface. It includes intermediate components such as a fluid path system, delivery apertures, and applicator surfaces (sponge, brush, or roller) that mediate the transfer of the agent from the cartridge to the target area with controlled precision.
2Length of moving object
If a topical agent is applied to hard-to-reach areas without an extended applicator, then the device structure remains simple, but the ability to reach and treat distant or difficult areas deteriorates
Solution Approach 1:
The applicator device extends the reach in multiple spatial dimensions through an elongated handle structure that connects the user's hand to the applicator head. This dimensional extension allows treatment of hard-to-reach areas on the body while maintaining a manageable device structure through ergonomic design.
3Ease of manufacture
If the entire applicator is disposable, then manufacturing and sterilization are simplified, but cost and environmental waste increase
Solution Approach 1:
The applicator device is segmented into disposable and reusable components. The cartridge containing the topical agent and the applicator head are designed as disposable elements that can be discarded after use, while the handle and plunger mechanism are designed as reusable components that can be sterilized and reused, reducing both manufacturing complexity and material waste.
Solution Approach 2:
The design allows for selective discarding of consumable components (cartridge with agent, applicator head) while recovering and reusing durable components (handle, plunger mechanism). This approach reduces material waste compared to complete disposability while maintaining ease of manufacture and sterilization for the reusable portions.
4Ease of operation
If the applicator allows free flow of topical agent, then the application process is simple, but control over the amount and placement of agent deteriorates
Solution Approach 1:
The topical agent is pre-loaded into a sealed cartridge during manufacturing, eliminating the need for user filling and ensuring proper dosing. The cartridge is designed to dispense a controlled amount of agent through a fluid path system when the plunger is actuated, providing both ease of operation and precise agent placement without requiring complex user actions.
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
Enhances ease and accuracy of topical agent application, particularly for hard-to-reach areas, reducing waste and ensuring targeted treatment, especially for individuals with mobility limitations.
Implementation Method 1
The cartridge includes an actuator to cause dispensation of the topical agent through an exit aperture
Implementation Method 2
The applicator body includes an applicator surface and a fluid path to fluidly couple the exit aperture and the applicator surface
Implementation Method 3
In some embodiments, the applicator surface comprises a sponge
Data Source
AI summary
An applicator for a topical agent includes a handle and an applicator body. The applicator further includes a cartridge for carrying the topical agent insertable into the applicator body. The cartridge includes an actuator to cause dispensation of the topical agent through an exit aperture. The applicator body also includes an applicator surface and a fluid path to fluidly couple the exit aperture and the applicator surface. The cartridge may be single-use and disposable, or may be refillable and reusable.