Hot/Cold Breast Pack With Dual Thermal Conductance Sheets
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Solution Overview
Problem
Existing breast packs do not efficiently provide both heat and cold therapy using a single device and fail to effectively target all milk glands in the breast.
Innovation Solution
A breast pack with a laminate structure comprising different thermal conductance and loft properties in its front and back sheets, allowing for selective application of heat or cold therapy by choosing the appropriate sheet for the desired treatment, and containing a gel within the volume defined by these sheets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single breast pack is used for both heat and cold therapy, then device versatility is improved, but thermal performance optimization deteriorates
Solution Approach 1:
The breast pack employs different fabric compositions on its front and back surfaces. The front surface uses a fabric with higher thermal conductivity for efficient heat transfer during cold therapy, while the back surface uses a fabric with lower thermal conductivity for comfortable heat retention during warm therapy. This local differentiation of material properties enables the single device to optimize thermal performance for both hot and cold applications.
2Ease of manufacture
If uniform fabric composition is used on both sides of the breast pack, then manufacturing simplicity is improved, but therapeutic effectiveness deteriorates
Solution Approach 1:
The patent specifies different fabric compositions for the front and back surfaces of the breast pack. The front fabric is selected for optimal thermal contact with the breast during cold therapy, while the back fabric provides appropriate thermal insulation for comfort during warm therapy. This localized material differentiation enhances therapeutic effectiveness while maintaining relatively simple manufacturing processes.
3Area of stationary object
If the breast pack conforms closely to the breast shape, then coverage of milk glands is improved, but comfort deteriorates
Solution Approach 1:
The breast pack incorporates strategic openings and segmented structures that allow it to conform to the breast shape and cover milk gland areas while maintaining comfort. The openings permit nipple access and accommodate breast pump flanges, while the segmented design allows the pack to adapt to breast contours without creating excessive pressure or discomfort points.
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 breast pack provides comfortable and effective application of both heat and cold therapy, achieving optimal temperature ranges for engorgement mitigation and milk flow encouragement, with improved comfort and versatility.
Implementation Method 1
A gel is contained within this volume
Implementation Method 2
The first fabric has a first thermal conductance. A back sheet is also formed as a laminate that includes a second fluid-impervious layer and a second fabric. The second fabric has a second thermal conductance that is smaller than the first thermal conductance
Implementation Method 3
The first fabric has a first loft. A back sheet is also formed as a laminate that includes a second fluid-impervious layer and a second fabric. The second fabric has a second loft that is larger than the first loft
Data Source
AI summary
A hot/cold breast pack has a front sheet exhibiting a first thermal conductance and a back sheet exhibiting a second thermal conductance different from the first thermal conductance. The front and back sheets are bonded together at their periphery to enclose a gel. The user selects one of the front sheet and the back sheet for application to the breast to deliver heat or cold therapy.