Ventilation Mask Forehead Support Flexible Strap Guide
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Solution Overview
Problem
Existing ventilation masks face integration challenges with adjustable forehead supports, as traditional methods like rods or screws complicate the incorporation into the mask geometry, and indirect adjustments limit optimal fitting on diverse facial shapes.
Innovation Solution
A flexible connecting device with a strap-like or spiral configuration, guided in a curved track, allows direct adjustment of the forehead support relative to the mask base, with locking mechanisms and spring bracing for secure positioning, enabling integration within the mask's geometric shape and improving mechanical stability and precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If rods or screws are used to adjust the forehead support, then the adjusting functionality is achieved, but the integration into the mask geometry becomes complex
Solution Approach 1:
The patent applies this principle by using a flexible connecting device made of a strap-like element that can bend and conform to the mask geometry. This flexible strap replaces rigid rods or screws, allowing the forehead support to be adjusted while maintaining a simple integrated design that follows the contours of the mask base.
Solution Approach 2:
The patent applies this principle by designing the connecting device with a curved guide track that follows the rounded contour of the mask base. The strap-like connecting element bends along this curved path, enabling smooth integration into the geometric shape of the mask while providing adjustment functionality.
2Ease of operation
If rotation about transverse or vertical axes is used, then the forehead support positioning is achieved, but the distance adjustment between forehead support and mask base becomes indirect
Solution Approach 1:
The patent applies this principle by providing a movable connection between the forehead support and mask base through the flexible strap and guide mechanism. The connecting device can move along the curved guide track, dynamically adjusting the distance between the forehead support and mask base directly, rather than requiring indirect adjustment through rotation about fixed axes.
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 allows for precise and direct adjustment of the forehead support on the patient's face, enhancing fit and comfort while simplifying integration and operation, thereby addressing the integration and adjustment limitations of traditional ventilation masks.
Implementation Method 1
Ease of operation is assisted by providing the connecting device with an operating button. A structurally simple realization with the use of bending stresses within the connecting device can be achieved if the connecting device can be locked relative to the guide by spring bracing.
Data Source
AI summary
A ventilation mask has a base, a hose connection, and at least one sealing element and is provided with a forehead support. The forehead support is arranged in such a way that it can be positioned relative to the base of the mask. A connecting device that couples the forehead support with the base of the mask is flexible. The connecting device is arranged so that it can be moved relative to a guide in such a way that the connecting device projects a predeterminable distance from the guide and can be locked in at least two different positions relative to the guide.