Irrigator Shielding Cover Prevents Liquid Splash
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Solution Overview
Problem
Conventional ear, nose, and throat irrigators often result in splashing of washing liquid during use, making them inconvenient for both users and patients.
Innovation Solution
The design incorporates a shielding cover on the spray head, which prevents splashing by shielding the water spray, along with features like clamping and anti-rotation protrusions for secure attachment, a resisting protrusion for stability, and a transparent, deformable shielding cover for better visibility and functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a spray head is used to irrigate the ear, nose, and throat, then the irrigation function is achieved, but washing liquid is prone to splash around and splash on the user or patient
Solution Approach 1:
A shielding cover is introduced as an intermediary component between the spray head and the external environment. The shielding cover includes a spray head accommodating portion that receives the spray head, and a spray shielding surface that blocks washing liquid from splashing outward. This mediator structure effectively prevents the harmful splashing effect while maintaining the irrigation function.
Solution Approach 2:
The shielding cover is designed to preemptively block the path of washing liquid before it can splash onto the user or patient. The spray shielding surface is positioned to intercept droplets in advance, creating a protective barrier that prevents the harmful effect from occurring in the first place.
2Object-affected harmful factors
If a shielding cover is added to prevent splashing, then washing liquid splash is reduced, but the device complexity increases
Solution Approach 1:
The shielding cover is designed as a thin-walled hollow structure with a spray head accommodating portion and a spray shielding surface. This shell-like structure provides effective splash protection while maintaining simplicity in design and manufacturing. The thin-walled construction minimizes material usage and structural complexity while achieving the protective function.
Solution Approach 2:
The shielding cover serves multiple functions simultaneously: it shields against washing liquid splash, accommodates the spray head, and can be integrated with the bottle body through various connection methods (screw connection, snap-fit, or adhesive). This multi-functionality reduces the need for additional separate components, thereby limiting the increase in device complexity.
3Loss of information
If the shielding cover is made transparent, then visibility of the irrigation area is improved, but the shielding effect may be reduced
Solution Approach 1:
The shielding cover is designed to be transparent or translucent, allowing light to pass through while still maintaining its physical barrier function. This optical property change enables users to observe the irrigation area and the condition of the spray head without compromising the shielding effect, as the transparency is achieved through material selection rather than structural modification.
Data Source
AI summary
An ear, nose, and throat irrigator includes a bottle body, a housing; a water pump, a first tube body, a second tube body, and a shielding cover. A first end of the housing is connected with the bottle body. A spray head is arranged on a second end of the housing. The water pump is arranged in the housing. A first end of the first tube body is inserted into the bottle body. A second end of the first tube body is connected with a water inlet joint of the water pump. A first end of the second tube body is connected with a water outlet joint the water pump. A second end of the second tube body is connected with the spray head. The shielding cover is arranged on the spray head. The shielding cover is configured to shield water sprayed from the spray head.