Augmented Reality Heart Model for Transseptal Puncture Guidance
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Solution Overview
Problem
Current medical imaging techniques for transseptal puncture in cardiac procedures are inadequate, leading to complications such as pericardial tamponade, aortic perforation, and systemic embolization due to inaccurate localization of the septal wall, and require cumbersome and costly methods like transesophageal echocardiography and fluoroscopy, which can compromise patient safety and procedure efficacy.
Innovation Solution
An augmented reality system that overlays a virtual three-dimensional model of the heart onto the real-world environment, allowing medical practitioners to visualize and select optimal puncture locations and trajectories in real-time, enhancing precision and reducing procedural complexity by integrating pre-operative image data from MRI, x-ray, ultrasound, and CT scans.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional imaging techniques like fluoroscopy and transesophageal echocardiography are used to locate puncture sites, then puncture accuracy can be improved, but device complexity and procedural cost increase significantly
Solution Approach 1:
The patent creates a virtual three-dimensional model of the heart that replicates anatomical structures and puncture trajectories. This virtual copy allows physicians to plan and visualize procedures without requiring complex physical imaging equipment during the actual procedure, thereby maintaining measurement precision while reducing device complexity.
Solution Approach 2:
The system performs puncture trajectory planning and visualization before the actual procedure. By pre-calculating optimal puncture paths and displaying them in a virtual model, the system eliminates the need for complex real-time imaging guidance during the procedure, reducing both device complexity and procedural cost while maintaining accuracy.
2Loss of information
If fluoroscopy is used for imaging during the procedure, then real-time visualization is achieved, but patient exposure to harmful x-rays increases
Solution Approach 1:
The patent creates a pre-procedure virtual three-dimensional model that captures anatomical information before any radiation exposure. This virtual copy provides real-time visualization capability during the procedure without requiring additional x-rays, thereby eliminating harmful radiation exposure while maintaining continuous anatomical information availability.
Solution Approach 2:
The system acquires and processes imaging data before the procedure to create a comprehensive virtual model. This preliminary action stores all necessary anatomical information in advance, eliminating the need for harmful real-time x-ray imaging during the procedure while maintaining full visualization capability.
3Object-affected harmful factors
If heavy lead suits are worn by physicians during fluoroscopy procedures, then radiation protection is improved, but physician mobility and ease of operation deteriorate
Solution Approach 1:
The patent eliminates the need for radiation protection equipment by using a pre-acquired virtual three-dimensional model for guidance. Since no real-time x-rays are used, physicians can operate without heavy lead suits, fully restoring mobility and ease of operation while maintaining complete radiation protection through the use of the radiation-free virtual model.
Solution Approach 2:
The system performs all necessary imaging and model creation before the procedure begins. This preliminary action removes the need for radiation protection during the procedure entirely, allowing physicians to move freely without heavy equipment while the pre-created virtual model provides continuous guidance.
4Loss of information
If conventional monitors are used to display imaging data, then information presentation is achieved, but physician attention must be diverted from the patient, reducing procedure safety
Solution Approach 1:
The patent transitions from two-dimensional conventional monitor displays to a three-dimensional virtual model that can be viewed from multiple angles. This dimensional enhancement provides comprehensive anatomical information while allowing the physician to maintain direct visual contact with the patient, as the 3D model can be positioned and viewed without requiring the physician to look away from the surgical field.
Data Source
AI summary
A method for enhancing a surgical procedure includes providing a three-dimensional model of a patient's organ of a patient based on pre-operative image data of the patient's organ; identifying positional data corresponding to a first position of at least one target treatment anatomy of the patient relative to a second position of an ancillary target anatomy of the patient based on an analysis of the three-dimensional model of the patient's organ of the patient; selecting a puncture location based on the identified positional data; and displaying, by an augmented reality device, a virtual organ object via an augmented reality display system overlaying a real-world environment, the virtual organ object corresponding to the three-dimensional model and visually indicating the selected puncture location.