Wearable Breast Pump Pressure Sensing for Discreet Milk Expression
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Solution Overview
Problem
Existing breast pumps are cumbersome, visible, require external power sources, and lack discreetness and efficiency, making them inconvenient for working mothers and others needing to express milk away from home.
Innovation Solution
A portable, self-powered breast pump system with a contoured design mimicking natural nursing, featuring real-time pressure control, automated compliance sensing, and a non-contact pressure sensing arrangement, integrated into a bra or clothing, with a milk collection container and data tracking capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a portable, self-powered breast pump system is designed, then ease of operation and discretion are improved, but device complexity increases due to integration of battery, motor, sensors, and control systems
Solution Approach 1:
The patent integrates the motor, battery, pressure sensors, compliance sensors, and control circuitry into a single unified pump assembly that can be worn on the body. This merging of previously separate components (motor housing, battery pack, sensor systems) into one compact unit enables portable operation while maintaining all necessary functions for effective milk expression.
Solution Approach 2:
The pump system incorporates multiple functions within a single device: it includes pressure sensing for real-time vacuum monitoring, compliance sensing for detecting breast tissue deformation, battery power for portability, motor-driven pumping for milk extraction, and data tracking for volume monitoring. This multi-functionality eliminates the need for separate devices and external power sources.
2Productivity
If real-time pressure control and automated compliance sensing are implemented, then productivity and accuracy of milk expression are improved, but use of energy increases due to continuous operation of sensors and motor
Solution Approach 1:
The system employs pressure sensors to continuously monitor vacuum levels and compliance sensors to detect breast tissue deformation during the pumping cycle. This feedback information is processed by the control circuitry to automatically adjust motor speed, pump duration, and vacuum levels in real-time, optimizing milk expression efficiency while adapting to individual user needs.
Solution Approach 2:
The pump operates through cyclic compression and decompression of the breast tissue, creating periodic suction waves that stimulate milk flow. The motor activates intermittently rather than continuously, with the compression member moving back and forth to create pumping cycles. This periodic operation reduces energy consumption compared to continuous suction while maintaining effective milk expression.
3Ease of operation
If a contoured design mimicking natural nursing is used, then ease of operation and comfort are improved, but manufacturing precision requirements increase to achieve accurate pressure control and proper fit
Solution Approach 1:
The pump assembly incorporates a contoured breast contact member with specifically designed surface properties in different regions: a smooth nipple-contact area for comfortable fit, a compression member with controlled elasticity for applying pressure, and sensor integration points positioned for optimal detection. Each local area has tailored characteristics to achieve natural nursing mimicry while maintaining functional precision.
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 system provides discreet, efficient milk expression with reduced nipple motion, comfortable wear, and accurate volume monitoring, enhancing user convenience and privacy.
Implementation Method 1
a driving mechanism configured to establish a vacuum profile within the conduit
Implementation Method 2
a non-contact pressure sensing arrangement that does not touch the skin or the milk inside the tube while accurately determining internal pressure of the tube
Data Source
AI summary
Systems and methods for pumping milk from a breast, wherein the milk is expressed from the breast under suction and milk is expulsed from the pumping mechanism to a collection container under positive pressure. In one embodiment, there is provided a breast pump assembly that fits within a bra and includes a milk collection container.