Aneurysm Separating Plane Determination for Precise Size Measurement

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Solution Overview

Problem

Current methods for determining the size of an aneurysm, such as coil embolization, rely on approximate measurements using polyhedral shapes, which lack precision and do not accurately represent the actual shape of the aneurysm.

Innovation Solution

A method involving an electronic device that generates a vessel mesh, centerline, parent artery mesh, and separating plane to accurately define the aneurysm region, enabling precise size determination.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If polyhedral shapes are used to approximate aneurysm size, then the measurement process is simple, but the measurement precision is insufficient

Engineering Contradiction:

Improveaneurysm size measurement precisionVSAvoidmeasurement method complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent segments the aneurysm measurement process into multiple components: generating a vessel mesh, extracting a centerline, creating a parent artery mesh, and determining a separating plane. This segmentation allows complex 3D geometry to be broken down into manageable computational steps, achieving precise measurement while maintaining systematic simplicity

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent transitions from 2D polyhedral approximations to 3D mesh-based measurement. By creating a vessel mesh and parent artery mesh in three dimensions, then using a separating plane to divide them, the system achieves precise volumetric measurement that captures the actual aneurysm shape without the simplifying assumptions of polyhedral geometry

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Manufacturing precision

If traditional polyhedral approximation methods are used, then the process is easy to implement, but the accuracy of coil embolization planning is compromised

Engineering Contradiction:

Improvecoil embolization planning accuracyVSAvoidease of aneurysm analysis

Core Design Contradiction:

Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The patent performs preliminary computational actions by generating the vessel mesh and parent artery mesh before determining the separating plane. These preliminary steps prepare the geometric data structure needed for accurate aneurysm segmentation, enabling precise coil embolization planning while automating the complex geometry processing

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent introduces a separating plane as an intermediary element that divides the vessel mesh from the parent artery mesh. This intermediary structure enables precise aneurysm segmentation without requiring complex direct manipulation of the 3D geometry, simplifying the overall process while maintaining high accuracy for coil placement planning

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS20250072971A1Method for determining separating plane for separating aneurysm from parent artery and electronic device thereof

Publication Date: 2025.03.06 MEDIPIXEL INC

AI summary

Provided is a method for determining a separating plane for separating aneurysm from a parent artery to obtain precise size information of an aneurysm. The method includes generating an aneurysm region including: generating a vessel mesh; generating a centerline based on the vessel mesh; generating a parent artery mesh based on the centerline; and generating a separating plane based on the parent artery mesh to obtain the aneurysm region.