Nasal Applicator Segmentation for Discharge Precision
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Solution Overview
Problem
Existing nasal discharge heads for pharmaceutical liquids from pressure reservoirs face manufacturing accuracy issues due to the integral configuration of the outer housing and base, leading to inconsistent discharge behavior and potential contamination, which complicates adaptation for different user groups.
Innovation Solution
A discharge head design featuring a separate outer component for the nasal applicator, allowing for greater manufacturing precision and interchangeability, with a movable outer component that can adjust the discharge characteristics by shifting relative to the inner component, enabling adult- or child-compatible configurations and hygiene adaptations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the outer housing is integrated with the base and nasal applicator, then manufacturing cost is reduced, but manufacturing accuracy at the discharge opening deteriorates
Solution Approach 1:
The nasal applicator is divided into an inner component (integrally connected to the base) and an outer component (surrounding the inner component). The discharge opening is formed in the outer component, which can be separately manufactured with high precision and then assembled to the inner component. This segmentation allows the discharge opening to be produced with greater accuracy while maintaining cost-effectiveness through modular manufacturing.
2Device complexity
If the discharge opening is far from the liquid supply point, then the integral configuration is achieved, but discharge behavior consistency deteriorates
Solution Approach 1:
By segmenting the nasal applicator into inner and outer components, the design maintains the advantages of integral configuration (simplicity, cost-effectiveness) while enabling precise manufacturing of the discharge opening in the separate outer component. This ensures consistent discharge behavior across different dispensers.
Solution Approach 2:
The inner component acts as an intermediary that connects the liquid supply from the base to the outer component containing the discharge opening. This intermediary structure ensures reliable fluid communication while allowing the discharge opening to be precisely positioned and manufactured separately.
3Adaptability or versatility
If the outer component is made separate and interchangeable, then adaptability for different user groups is improved, but device complexity increases
Solution Approach 1:
The separation of the nasal applicator into inner and outer components enables the outer component to be made interchangeable for different user groups (e.g., adults vs. children). This segmentation allows customization without significantly increasing overall device complexity, as the inner component and connection mechanisms remain standardized.
Solution Approach 2:
The inner component is designed as a universal base that can accommodate different outer components for various user groups. This multi-functionality approach allows a single dispenser body to serve multiple purposes by simply changing the outer nasal applicator component, thereby improving adaptability without proportionally increasing complexity.
Data Source
AI summary
A discharge head for the nasal application of pharmaceutical liquid from a pressure reservoir which has an outlet valve with a valve connector, to which force can be applied counter to a spring force in order to open the outlet valve. The discharge head has a nasal applicator which extends outward from an actuating surface and at the end of which a discharge opening is provided. The discharge opening is connected in a fluid-communicating manner to a hollow tube through an applicator channel of the nasal applicator for connection to the pressure reservoir. The nasal applicator has an inner component connected integrally to the actuating surface and an outer component separate from the inner component and attached to the inner component in a surrounding manner. The discharge opening is provided in the outer component, and the outer component and the inner component together bound the applicator channel.