Medical Headlamp Wing-Set for Pressure Relief
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Solution Overview
Problem
Medical headlamp headbands become uncomfortably rigid and painful to wear over time due to mismatch between flat straps and non-flat head shapes, and existing solutions, such as stabilizers, can be cumbersome, especially for individuals with long hair.
Innovation Solution
A closed-form headband with a resiliently deformable wing-set and tightness adjustment mechanism, featuring a central part and laterally extending wings that contact the head to lift the adjustment assembly away from the head, providing comfort and flexibility, along with interchangeable top straps made of different materials for improved fit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the headband is made rigid and fastened firmly to keep the headlamp in place, then the headlamp stability is improved, but the comfort of the wearer deteriorates due to pain from mismatch between flat strap and non-flat head shape
Solution Approach 1:
The headband is divided into multiple segments including a rigid central portion for stability and flexible side portions that can conform to the wearer's head shape. This segmentation allows different parts of the headband to serve different functions - the rigid center maintains headlamp positioning while the flexible sides provide comfort by adapting to non-flat head surfaces
Solution Approach 2:
Different portions of the headband are given different mechanical properties - the central portion maintains rigidity for stable headlamp mounting, while the side portions are made flexible to conform to the wearer's head contours. This local differentiation of material properties resolves the contradiction between needing rigidity for stability and flexibility for comfort
2Object-affected harmful factors
If a stabilizer is added to ease the sensation of wearing the headlamp, then the wearer comfort is improved, but the device complexity and bulk increase which may block long hair
Solution Approach 1:
The comfort function previously requiring a separate stabilizer component is merged directly into the headband structure itself. The flexible side portions are integrated into the headband, eliminating the need for additional stabilizer components while still providing the comfort function of conforming to head shape
Solution Approach 2:
The stabilizer function is extracted from being a separate bulky component and reimagined as an inherent property of the headband's side portions. By taking out the concept of a discrete stabilizer and embedding it into the headband's construction, the solution maintains comfort functionality while reducing overall device complexity and bulk
3Ease of manufacture
If the headband strap is made flat and simple in structure, then the manufacturing cost is reduced, but the adaptability to different head shapes deteriorates
Solution Approach 1:
The headband is segmented into a simple rigid central portion that is easy to manufacture and flexible side portions that provide adaptability. This segmentation allows the majority of the headband (the central portion) to remain simple and cost-effective to produce, while only the necessary side portions require complex flexible materials for head shape adaptation
4Stability of the object's composition
If the headband is fastened tightly to prevent headlamp movement, then the headlamp positioning stability is improved, but the pressure concentration on the head increases causing pain
Solution Approach 1:
The fastening function is segmented between the rigid central portion that provides stable positioning and the flexible side portions that distribute pressure. The rigid center maintains headlamp position with minimal pressure, while the flexible sides accommodate head contours and distribute any necessary pressure over larger surface areas, reducing pain
Solution Approach 2:
Different regions of the headband apply different amounts of pressure - the rigid central portion applies minimal localized pressure for positioning, while the flexible side portions distribute pressure more broadly across the head surface. This local differentiation of pressure application maintains stability while reducing pain
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 reduces discomfort by distributing pressure more evenly and accommodating various head shapes, allowing for extended wear without irritation, while also providing easy adjustment and compatibility with different hair styles.
Implementation Method 1
A resiliently deformable wing-set is supported by the headstrap subassembly on the head-facing side, about the tightness adjustment subassembly
Data Source
AI summary
A medical headlamp headband assembly, having a preferred orientation relative to a wearer's head, and comprising a closed form headband, adapted to encircle a human head horizontally, thereby defining a head-facing side and having a tightness adjustment feature in a rear central location relative to a wearer's head when the headband assembly is worn in its preferred orientation. A tightness adjustment subassembly, at a central rear location, is opposed to the front location. A resiliently deformable wing-set is supported by the headstrap subassembly on the head-facing side, about the tightness adjustment subassembly and including a central part and two wings, each extending laterally outwardly from the central part. Each wing extends forward as it extends laterally from the central part, to contact the wearer's head at a rear side location, thereby holding the tightness adjustment assembly back from the wearer's head.