Bone Scaffold Model Perforation via Unit Lattice Segmentation
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Solution Overview
Problem
Existing methods for designing porous bone scaffolds are computationally intensive and difficult to parallelize, limiting user autonomy in customizing lattice structures and affecting the efficiency of bone scaffold model processing.
Innovation Solution
A perforation information processing method that segments a nonporous bone scaffold model into unit lattices, generates short girders, and uses equidistant sampling points with a Marching-Cubes algorithm to create a porous scaffold model, allowing for high parallelization of core computation steps and user customization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional Boolean operation method is used to cut bone scaffold models, then porous structure can be achieved, but computation time is excessive and parallelization is difficult
Solution Approach 1:
The patent divides the bone scaffold model into discrete unit lattices, where each lattice can be processed independently. This segmentation enables parallel computation across multiple processing units, dramatically reducing computation time while maintaining the accuracy of the porous structure through systematic Boolean operations on each lattice unit.
Solution Approach 2:
The patent pre-generates a library of unit lattice structures with varying porosity parameters before the actual scaffold construction. This preliminary preparation allows the main computation to simply assemble and select from pre-processed components, avoiding repeated complex Boolean operations and significantly reducing computation time.
2Adaptability or versatility
If traditional modeling methods are used, then bone scaffold can be generated, but user autonomy in customizing lattice structures is limited
Solution Approach 1:
The patent implements dynamic parameter control for unit lattices, allowing users to adjust porosity, size, and distribution characteristics through programmable parameters. This dynamic approach enables flexible customization of lattice structures without requiring complex manual modeling, as parameters can be modified systematically to achieve desired structural variations.
Solution Approach 2:
The patent uses parameter-based control to define unit lattice characteristics, where changing numerical parameters directly modifies lattice geometry and distribution. This approach simplifies customization by replacing complex geometric modeling with parameter adjustment, enabling users to easily create varied lattice structures through systematic parameter modification.
Data Source
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AI summary
The present invention relates to a perforation information processing method and device for a bone scaffold model. The method includes: step S1: importing a nonporous-bone-scaffold initial model; step S2: segmenting the nonporous-bone-scaffold initial model into a plurality of unit lattices according to an input signal; and step S3: perforating each of the unit lattices, to obtain a porous bone scaffold model. Compared with the related art, in the present invention, users have great autonomy in design and can completely customize the lattice structure, and the core computation steps can be highly parallelizable, which can greatly reduce the time required for computation.