Bone Strength Simulation Using 3D Cancellous Bone Structural Analysis

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Solution Overview

Problem

Existing methods for assessing bone strength, such as DXA and QCT, rely on two-dimensional measurements and simple density values, which fail to accurately reflect the complex structural properties of bone, leading to incomplete and unreliable bone strength evaluations.

Innovation Solution

A bone strength simulation calculation method that involves obtaining three-dimensional data of cancellous bone, reconstructing a skeleton mechanical model, and performing feature analysis to extract skeleton strength data, including quantity and angle data of trabecular nodes, to calculate comprehensive bone strength values.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If two-dimensional measurement methods (DXA) are used to assess bone strength, then the measurement process is simple and quick, but the assessment accuracy is insufficient because it cannot reflect complex structural properties

Engineering Contradiction:
Improvebone strength assessment accuracyVSAvoidmeasurement method complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent transitions from two-dimensional bone density measurement to three-dimensional structural analysis. By obtaining 3D data of cancellous bone and constructing skeleton mechanical models, the system captures the complex spatial architecture of trabecular bone, including node quantities, angle data, and structural connectivity, thereby significantly improving bone strength assessment accuracy while managing computational complexity through automated processing algorithms

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Measurement precision

If simple density values are used for bone assessment, then the calculation process is straightforward, but the evaluation is incomplete because it ignores structural features

Engineering Contradiction:
Improvebone strength evaluation completenessVSAvoidcalculation method complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent segments the cancellous bone structure into discrete trabecular elements and identifies specific structural features including node quantities, angle data between trabeculae, and connectivity patterns. This segmentation approach extracts meaningful structural parameters from complex 3D data, enabling comprehensive bone strength evaluation that goes beyond simple density measurements while using automated algorithms to manage computational complexity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent transforms the assessment from using single density parameters to using multiple structural parameters including node quantity, angle data, and skeleton model features. By changing the parameter set from simple density to complex structural descriptors, the system achieves more complete bone strength evaluation while using computational algorithms to handle the increased parameter complexity

Inventive Principle:
Principle #35Parameter changes

3Measurement precision

If three-dimensional reconstruction and skeleton modeling are performed, then structural features are accurately captured, but the calculation time and computational resources increase

Engineering Contradiction:
Improvestructural feature accuracyVSAvoidcalculation time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent performs preliminary actions by pre-processing the 3D bone data to construct skeleton mechanical models and extract structural features (node quantities, angle data) before the actual bone strength assessment. This preliminary structuring of the data enables more efficient subsequent calculations and reduces real-time computational burden while maintaining high structural feature accuracy

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent extracts only the most critical structural features from the complete 3D bone data, specifically focusing on node quantities, angle data between trabeculae, and skeleton model characteristics. By extracting and analyzing only these key structural parameters rather than processing all raw 3D data, the system achieves accurate structural feature capture while reducing overall calculation time and computational resource requirements

Inventive Principle:
Principle #2Taking out (Extraction)

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 method provides a more accurate and comprehensive assessment of bone strength by accounting for the structural features of trabecular bone, enhancing the reliability and objectivity of bone strength evaluations.

Implementation Method 1

obtaining the three-dimensional data of the cancellous bone of the bone segment to be analyzed by using a Quantitative Computed Tomography, QCT measurement method

Methodology Applied
Scientific EffectX-ray attenuation: X-Ray

Data Source

PatentUS20250157035A1Bone strength simulation calculation method and device, and storage medium
Publication Date: 2025.05.15 THE FIRST MEDICAL CENT CHINESE PLA GENERAL HOSPITAL
  • US20250157035A1 patent drawing
  • US20250157035A1 patent drawing
  • US20250157035A1 patent drawing

AI summary

A bone strength simulation calculation method and device, and a storage medium. The bone strength simulation calculation method includes acquiring three-dimensional data of cancellous bone of a bone segment to be analyzed; obtaining a skeleton mechanical model according to the three-dimensional data; and performing feature analysis on the skeleton mechanical model to obtain skeleton strength data.