Pressure Measuring System for Sit Bone Distance Visualization
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Solution Overview
Problem
Existing pressure measuring systems for determining the sit bone distance of a human pelvis are either not suitable for visualization, are costly, or cannot digitize and store measurement results effectively, and existing solutions are complex and expensive to manufacture and use.
Innovation Solution
A pressure measuring system using a sheet of paper with knobs in shapes like a sugar loaf cone, pyramid, or circular cylinder, which deforms to indicate sit bone distance, allowing for permanent and cost-effective visualization and archiving of pressure distribution, enabling easy selection of an optimal saddle for pressure relief.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional measuring cardboards are used, then the sit bone distance can be measured, but they are not suitable for visualization and require separate purchase representing considerable cost
Solution Approach 1:
The invention combines the measurement function and visualization function into a single integrated system. The base plate with pressure-sensitive paper and knobs provides both measurement capability (determining sit bone distance) and visualization (showing pressure distribution patterns) simultaneously, eliminating the need for separate measuring cardboards and reducing costs.
Solution Approach 2:
The pressure-sensitive paper automatically records and visualizes the measurement results when pressure is applied through the knobs. The system serves itself by creating visible impressions directly on the paper without requiring additional equipment or complex processing, making the measurement both affordable and visually informative.
2Ease of manufacture
If electronic pressure measuring systems are used, then pressure points and distribution can be visually displayed, but they are expensive and complicated to use
Solution Approach 1:
The invention uses inexpensive pressure-sensitive paper that can be easily replaced after use. Instead of investing in expensive electronic systems, the patent employs disposable or reusable paper sheets that provide visualization through simple mechanical pressure recording, dramatically reducing system complexity and cost.
Solution Approach 2:
The invention extracts the essential visualization function from complex electronic systems and implements it through a simple mechanical approach using pressure-sensitive paper. By removing electronic components and relying on basic physical principles, the system achieves visualization capability without the associated complexity and expense.
3Ease of manufacture
If liquid or gel filled cushions are used, then pressure distribution can be visualized through color changes, but the system is too complex and expensive to manufacture and purchase
Solution Approach 1:
The invention replaces complex mechanical systems with liquid or gel cushions with a simpler system based on pressure-sensitive paper and rigid knobs. The paper records pressure through direct mechanical impression, eliminating the need for complex cushion structures while maintaining visualization capability.
Solution Approach 2:
The invention changes the approach to visualization from using color changes in liquid/gel systems to using physical impressions and markings on pressure-sensitive paper. This parameter change simplifies the system by using static paper properties rather than dynamic fluid properties, reducing manufacturing complexity.
4Ease of manufacture
If measuring methods requiring additional color particles are used, then footprint can be marked and visualized, but it is too expensive and complicated in preparation and measurement process
Solution Approach 1:
The pressure-sensitive paper is pre-prepared with pressure-sensitive material that automatically reacts when pressure is applied. This preliminary preparation eliminates the need for adding color particles during the measurement process, simplifying both preparation and operation while maintaining clear visualization of the footprint and sit bone distance.
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
This system provides a simple, cost-effective means to visually and permanently record sit bone distance, facilitating the selection of ergonomic saddles that reduce pressure in the perineal area for men and pubic bone area for women, improving customer comfort and reducing manufacturing costs for retailers.
Implementation Method 1
a sheet of paper or the like (2) on which pressure can be exerted from above by a body or object to be measured (1)
Implementation Method 2
the nubs press hard on the paper in places of high pressure, deforming it and creating depressions
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The device has a sheet paper (2) and a base plate with knobs (3), where the sheet paper is arranged in the base plate with knobs. The knobs of the base plate are designed in the form of circular cylinders, pyramids, triangular pyramids or circular cones, such as nails, with sphere section- or calvarium heads.