Isolated Wearable Breast Pump Waterproof Ventilation Structure
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Solution Overview
Problem
Existing wearable breast pumps are prone to short circuits due to milk entering the main unit, especially when the diaphragm breaks, causing contamination and damage.
Innovation Solution
An isolated wearable breast pump design featuring a ventilation structure with a waterproof means, including a ventilation column and hole made from different rubber materials and a waterproof membrane, along with a liquid sensor and valve to prevent liquid entry, eliminating direct contact between the diaphragm and the main unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the diaphragm is directly connected to the main unit housing to form a negative pressure cavity, then the breast pump can effectively suck milk, but the diaphragm is prone to breakage and milk can enter the main unit causing short circuit
Solution Approach 1:
The patent divides the breast pump into two isolated parts: a milk collecting casing that is waterproof and a main unit housing, connected only through a waterproof ventilation structure. This segmentation prevents milk from directly contacting the main unit while maintaining separate functional zones.
Solution Approach 2:
The patent introduces a waterproof ventilation structure as an intermediary between the milk collecting casing and main unit housing. This intermediary allows air passage for milk suction while blocking liquid, solving the contradiction between maintaining negative pressure and preventing liquid entry.
2Reliability
If a waterproof means is added to the ventilation structure to prevent liquid entry, then the main unit is protected from milk, but the device complexity increases
Solution Approach 1:
The patent employs a waterproof membrane as a thin film within the ventilation structure that allows air to pass through while blocking liquid. This thin film solution provides effective waterproofing without adding significant structural complexity to the ventilation system.
3Stability of the object's composition
If the ventilation structure uses soft rubber material for the ventilation hole, then it provides good sealing, but it may be prone to deformation and leakage
Solution Approach 1:
The patent combines soft rubber material for the ventilation hole with a hard rubber ventilation column and waterproof membrane to create a composite structure. The soft rubber provides sealing flexibility while the hard rubber and membrane provide structural stability and resistance to deformation.
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
Prevents milk from entering the breast pump main unit, reducing the risk of contamination and damage, even if the diaphragm is broken, by ensuring a sealed and waterproof connection between the milk collecting casing and the breast pump main unit.
Implementation Method 1
a vacuum pump connected to the ventilation structure and used to draw the air in the milk collecting casing is arranged inside the breast pump main unit
Implementation Method 2
the waterproof means comprises a waterproof membrane disposed on the ventilation hole and/or the ventilation column
Data Source
AI summary
The present disclosure discloses an isolated wearable breast pump comprising a milk collecting casing for storing milk, and a breast pump main unit connected to the milk collecting casing for drawing air inside the milk collecting casing, wherein the connection surface between the milk collecting casing and the breast pump main unit is provided with a ventilation structure, which is provided with a waterproof means used to prevent liquid from entering the breast pump main unit. Compared with the prior art, the present disclosure only has one ventilation structure connecting the breast pump main unit with the milk collecting casing, and a waterproof means is disposed on the ventilation structure, on the one hand, to reduce the risk of contamination arising from milk's contact with the breast pump main unit, and on the other hand, to avoid the breast pump main unit from damaging due to milk's penetration.