Breast Pump Vacuum Curves for Sensitive Milk Expression
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Solution Overview
Problem
Existing electrically-driven breast pumps do not effectively accommodate individual maternal sensitivity to vacuum strength, leading to reduced milk expression for vacuum-sensitive mothers.
Innovation Solution
A breast pump with a controller that allows selection from a set of vacuum curves, adjusting cycle phases to maximize vacuum exposure based on user input, including cycle phase duration and vacuum strength, to enhance comfort and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a stronger vacuum strength is applied to increase milk extraction, then milk expression is improved, but comfort is worsened for vacuum-sensitive mothers
Solution Approach 1:
The system dynamically adjusts vacuum strength and cycle length based on real-time feedback from the mother's comfort level. The controller modifies the vacuum curve parameters during operation to balance milk extraction effectiveness with maternal comfort, transitioning from static pre-programmed curves to adaptive dynamic control.
Solution Approach 2:
The system changes multiple parameters simultaneously including vacuum strength, cycle length, and duty cycle based on user feedback. By coordinating changes across these parameters rather than adjusting vacuum strength in isolation, the system maintains effectiveness while improving comfort for sensitive users.
2Productivity
If a longer cycle length is used to increase vacuum exposure, then milk expression is improved, but comfort is worsened for vacuum-sensitive mothers
Solution Approach 1:
The system dynamically adjusts cycle length based on real-time feedback. Rather than using a fixed long cycle, the controller shortens the cycle length when discomfort is detected, creating an adaptive rhythm that balances adequate vacuum exposure with maternal comfort and tolerance.
Solution Approach 2:
The system incorporates feedback mechanisms where mothers can report comfort levels, and the controller uses this information to adjust cycle length and vacuum parameters. This closed-loop control ensures that vacuum exposure remains within comfortable limits while maintaining effective milk expression.
3Device complexity
If a single vacuum curve is used for all mothers, then device complexity is reduced, but adaptability to individual sensitivity is worsened
Solution Approach 1:
The system transitions from static pre-programmed vacuum curves to dynamic adaptive control. The controller continuously adjusts vacuum parameters based on real-time feedback, eliminating the need for multiple fixed curves while maintaining individualization. This dynamic approach reduces configuration complexity while enhancing adaptability.
Solution Approach 2:
The system enables mothers to self-regulate their vacuum experience through feedback mechanisms. Rather than requiring complex manual configuration or selection from multiple pre-set curves, the system allows users to naturally guide the vacuum parameters through their comfort feedback, simplifying operation while maintaining high adaptability.
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
The solution increases milk extraction by allowing mothers to choose vacuum curves tailored to their sensitivity, improving comfort and efficiency by optimizing vacuum application.
Implementation Method 1
a vacuum pump which has an electric motor that plugs into standard house current, and/or operates with battery power... generating the vacuum (negative pressure) to be applied at the breast
Implementation Method 2
an electric motor that plugs into standard house current... Electrically-driven breast pumps are commonplace, typically including a vacuum pump which has an electric motor
Data Source
AI summary
The present invention relates to a breast pump including a breast shield adapted to at least in part receive a breast of a lactating user, an aggregate for generating a cyclic suction profile according to vacuum curves for expressing milk from the breast, a milk container providing a reservoir for the expressed milk, a controller for controlling the aggregate.