Rotatable Handle Support for Manual Breast Pump Stability
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Solution Overview
Problem
Existing manual breast pumps suffer from unstable movement and increased muscle burden due to complex rotation mechanisms and fixed handle positions, making it difficult for users to operate them effectively for breast milk extraction.
Innovation Solution
A manual breast pump design featuring a rotatable holding member that supports the handle, allowing for adjustable positioning and simplified rotation mechanisms, thereby stabilizing the handle's movement and reducing muscle strain during repetitive operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a complex rotation mechanism is used to allow handle rotation, then the handle position can be adjusted to reduce muscle burden, but the device complexity increases and movement stability decreases
Solution Approach 1:
The holding member is divided into a stationary attachment portion fixed to the main body and a rotatable extension portion that supports the handle. This segmentation allows the handle-supporting part to rotate independently while the attachment remains stable, enabling position adjustment without complex overall rotation mechanisms.
Solution Approach 2:
The holding member extends in a direction substantially perpendicular to the rotational axis, creating a spatial arrangement where rotation occurs around one axis while handle support occurs in a perpendicular dimension. This dimensional separation simplifies the rotation mechanism while maintaining adjustability.
2Device complexity
If the rotation mechanism and handle support are positioned at the same height, then the structure is compact, but the handle movement becomes unstable during repeated operations
Solution Approach 1:
The holding member is segmented into an attachment portion at one height level and an extension portion at a different height level. The attachment portion is positioned at a first height for stable mounting, while the extension portion extends to a second height to support the handle, separating the rotational function from the support function vertically.
Solution Approach 2:
The extension portion acts as an intermediary element that transmits rotational motion from the attachment portion to the handle while providing stable support. This intermediary structure mediates between the stationary attachment and the moving handle, ensuring stable movement during repeated operations.
3Device complexity
If the handle position is fixed relative to the main body, then the structure is simple, but the user cannot adjust the handle to a comfortable position for repetitive operation
Solution Approach 1:
The holding member is designed with rotational freedom around the axial direction, transforming the fixed handle position into a dynamically adjustable position. The handle can rotate to different angular positions while maintaining its support function, allowing users to find comfortable operating positions without complicating the overall structure.
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 design stabilizes the handle's movement and reduces muscle burden, enabling easier and more efficient breast milk extraction by allowing for adjustable handle positioning and simplifying the rotation mechanism.
Implementation Method 1
a diaphragm provided to the main body and generating a negative pressure in the passage
Data Source
AI summary
To provide a manual breast pump capable of stabilizing movement of a handle while reducing burden on muscle resulting from a repetitive operation of the handle. A manual breast pump 2 has a main body 3 having a passage 312 through which extracted breast milk passes, a hood 4 connected to the main body 3 and placed onto a breast, a diaphragm 34 generating a negative pressure in the passage 312, a holding member 200 attached to the main body 3 and provided to be rotatable with respect to the main body 3, and a handle 5 for being operated thereby deforming the diaphragm 34, the handle being held by the holding member 200. When the holding member 200 rotates with respect to the main body 3, the handle 5 rotates with respect to the main body 3 together with the holding member 200.