Topical Applicator Head With Integrated Dose-Marking Compartment

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Solution Overview

Problem

Existing applicator heads for topical formulations lack a precise dosing mechanism, leading to inconsistent application and inconvenience, especially for medicinal use, as users rely on estimation or cumbersome methods like dosing cards, which are unhygienic and difficult to use.

Innovation Solution

An applicator head with a dosing aid featuring a dose marking on the applicator surface that circumscribes an inner dosing compartment, allowing for precise dosing by visually indicating a predefined amount of topical formulation to be applied, with the outlet opening positioned inside the compartment to control the spread.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a dosing card is used to measure product length, then dosing precision is improved, but device complexity and ease of operation deteriorate due to requiring multiple components and cumbersome handling

Engineering Contradiction:

Improvedosing precisionVSAvoidnumber of components

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent combines the dosing aid directly onto the applicator surface, merging the dosing function with the application function. The dosing aid comprises a dosing compartment and dose marking integrated into the applicator head, eliminating the need for separate dosing cards or measurement tools.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The applicator head serves multiple functions: it applies the topical formulation to the skin and simultaneously measures the predefined dose through the integrated dosing aid. The dosing compartment and dose marking enable precise dosing while the applicator surface enables direct application, combining what were previously separate functions.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Measurement precision

If a dosing card is used for precise dosing, then dosing precision is improved, but ease of operation deteriorates due to difficult handling and cleaning requirements

Engineering Contradiction:

Improvedosing precisionVSAvoidhandling convenience

Core Design Contradiction:

Measurement precisionVSEase of operation

Solution Approach 1:

The dosing aid is merged with the applicator head, creating a single integrated component. Users handle only one object (the applicator head) to both measure and apply the product, eliminating the need to coordinate handling of separate dosing cards and applicators.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The applicator head with integrated dosing aid enables users to complete the entire dosing and application process with a single tool. The dosing compartment automatically contains the measured dose, and the applicator surface directly transfers it to the skin, eliminating secondary steps of transferring product from a dosing card.

Inventive Principle:

Principle #25Self-service

3Measurement precision

If a dosing card is used to measure product, then dosing precision is improved, but hygiene deteriorates due to product spillage and contamination risks

Engineering Contradiction:

Improvedosing precisionVSAvoidproduct contamination

Core Design Contradiction:

Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

By merging the dosing compartment with the applicator head, the patent eliminates the transfer step between separate components. The product remains contained within the integrated system from measurement to application, reducing opportunities for spillage and contamination.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The integrated dosing aid enables the applicator head to self-contained the measured dose in its dosing compartment and directly apply it to the skin. This self-service mechanism eliminates the need for users to manually transfer product between components, reducing contamination risks.

Inventive Principle:

Principle #25Self-service

4Ease of operation

If product is applied directly using applicator surface, then ease of operation is improved, but dosing precision deteriorates without a dosing mechanism

Engineering Contradiction:

Improveapplication convenienceVSAvoiddosing precision

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The patent merges the dosing function with the application function by integrating the dosing aid (dosing compartment and dose marking) directly onto the applicator surface. This allows users to maintain the convenience of direct application while achieving precise dosing through the integrated measurement features.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS12569660B2Applicator head with dosing aid

Publication Date: 2026.03.10 HALEON CH SARL

AI summary

There is provided an applicator head (10) for administration of a topical formulation, comprising a dosing aid for application of a predefined dose of the topical formulation. The applicator head (10) comprises an applicator surface (20) adapted to apply the topical formulation to a user's skin. The applicator surface (20) comprises an outlet opening (40). The dosing aid comprises a dose marking, or dose markings (60, 60′, 60″, 62′, 62″) on the applicator surface (20), and wherein the dose marking (60, 60′, 60″, 62′, 62″) circumscribes an inner dosing compartment (64) that serves to measure the predefined dose of the topical formulation, and wherein the outlet opening (40) is disposed inside the inner dosing compartment.