Virtual Stent Simulation for Aortic Dissection Risk Evaluation

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Solution Overview

Problem

Current methods cannot timely evaluate the postoperative condition of patients with aortic dissection, making it difficult for doctors to plan medical treatment effectively, leading to a high mortality rate if not treated promptly.

Innovation Solution

A method and apparatus using virtual stent technology to simulate aortic dissection surgery on preoperative models, calculating displacement amounts between preoperative and postoperative models to assess surgical risk and potential complications, and evaluating postoperative recovery based on pressure intensity differences between true and false lumens.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If aortic dissection surgery is performed without preoperative simulation and evaluation, then the surgery can be conducted quickly, but the surgical risk and mortality rate increase due to inability to timely evaluate postoperative conditions

Engineering Contradiction:
Improvesurgical safetyVSAvoidtime for surgical planning
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent performs preoperative virtual simulation of aortic dissection surgery before actual surgery to evaluate postoperative conditions. The system constructs preoperative and postoperative aortic models, simulates the surgical procedure, calculates displacement amounts of vessel nodes, and evaluates surgical risks in advance, enabling doctors to make informed decisions before surgery without delaying the treatment timeline

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent creates virtual copies of the patient's aortic structure through 3D modeling from medical images. The preoperative aortic model and postoperative aortic model are digital replicas that allow risk evaluation without affecting the actual patient, enabling safe and rapid assessment of surgical outcomes

Inventive Principle:
Principle #26Copying

2Measurement precision

If virtual stent technology and 3D modeling are used to simulate aortic dissection surgery, then surgical risk evaluation accuracy improves, but the complexity of the evaluation system increases

Engineering Contradiction:
Improvesurgical risk evaluation accuracyVSAvoidevaluation system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent uses virtual copying of the aortic structure through 3D modeling from medical images. The preoperative and postoperative aortic models are digital replicas that enable precise measurement of displacement amounts and accurate evaluation of surgical risks without requiring complex physical testing equipment

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent replaces complex physical surgical testing with computational modeling and simulation. The system uses algorithm-based displacement calculation and risk evaluation instead of mechanical measurement devices, reducing physical complexity while maintaining or improving measurement precision

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS20220296304A1Method and Apparatus for Evaluating Aortic Dissection Surgery, Electronic Device, and Storage Medium
Publication Date: 2022.09.22 BEIJING INST OF TECH
  • US20220296304A1 patent drawing
  • US20220296304A1 patent drawing
  • US20220296304A1 patent drawing

AI summary

A method and apparatus for evaluating aortic dissection surgery, an electronic device, and a storage medium are provided. The method comprises: obtaining a preoperative aortic model of a patient; simulating aortic dissection surgery on the basis of a virtual stent technology and the preoperative aortic model to obtain a postoperative aortic model; obtaining displacement amount of the same blood vessel node between the preoperative aortic model and the preoperative aortic model; and evaluating a surgical risk degree of the patient on the basis of the displacement amount. The occurrence probability of postoperative complications is related to the displacement amount.