Transmyocardial Laser Revascularization System with AI Parameter Optimization

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Solution Overview

Problem

The existing Transmyocardial laser revascularization (TMLR) procedure faces challenges with heart tissue damage and limited safety due to inadequate control over laser parameters, particularly in creating and maintaining patent channels without causing thermal damage.

Innovation Solution

A system integrating a CO2 laser unit with EKG, VCG, echocardiography, and infrared units, along with a control unit and AI module, optimizes laser parameters such as angle, timing, power density, and wavelength to ensure channels are created when the heart is full of blood, minimizing thermal damage and enhancing channel patency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If laser is used to create channels in the heart to improve blood supply, then channel creation and blood supply improvement are achieved, but heart tissue damage and thermal damage occur

Engineering Contradiction:
Improvechannel patencyVSAvoidheart tissue damage
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The system performs preliminary assessment of cardiac electrical activity using EKG and VCG before laser channel creation. The control unit analyzes these signals to determine optimal timing when the heart is full of blood, preparing the conditions for safe laser application before the actual channel creation occurs.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system continuously monitors cardiac electrical activity through EKG and VCG units, providing real-time feedback to the control unit. This feedback mechanism allows dynamic adjustment of laser parameters based on the heart's physiological state, ensuring channels are created at optimal moments while preventing tissue damage.

Inventive Principle:
Principle #23Feedback

2Reliability

If laser parameters are increased to improve channel creation effectiveness, then channel patency improves, but thermal damage to heart tissue increases

Engineering Contradiction:
Improvechannel patencyVSAvoidthermal damage
Core Design Contradiction:
ReliabilityVSTemperature

Solution Approach 1:

The system dynamically adjusts laser parameters including power density, pulse duration, and wavelength based on real-time cardiac electrical activity signals. The control unit modifies these parameters continuously to match the optimal phase of the cardiac cycle, creating effective channels while preventing thermal damage through adaptive parameter control.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes multiple laser parameters simultaneously - power density, pulse duration, wavelength, and timing - based on feedback from EKG and VCG signals. This multi-parameter optimization ensures channel creation effectiveness while maintaining temperatures below damage thresholds through coordinated parameter adjustment.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If manual control of laser parameters is used to prevent heart damage, then safety improves, but automation and precision are reduced

Engineering Contradiction:
ImprovesafetyVSAvoidautomated delivery
Core Design Contradiction:
ReliabilityVSExtent of automation

Solution Approach 1:

The system uses the heart's own electrical signals from EKG and VCG to automatically determine optimal laser application timing and parameters. The control unit processes these signals and autonomously controls laser delivery without requiring manual intervention, allowing the system to self-regulate for both safety and precision.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system replaces manual mechanical control with automated electronic control based on electrical signal processing. The control unit uses algorithms to interpret EKG and VCG signals and automatically adjusts laser parameters, substituting human operator control with an automated electronic system that provides both safety and precision.

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

4Reliability

If laser parameters are optimized based on real-time cardiac activity to prevent damage, then safety and channel patency improve, but system complexity increases

Engineering Contradiction:
ImprovesafetyVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system integrates multiple functions into a unified platform - EKG monitoring, VCG analysis, real-time signal processing, and automated laser control - all managed by a single control unit. This multi-functional integration achieves high safety through comprehensive monitoring while managing complexity through centralized control architecture.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 approach significantly enhances the safety and effectiveness of the TMLR procedure by preventing unnecessary heart damage and maintaining channel patency, allowing for more precise and automated delivery of the laser therapy, thereby improving patient outcomes.

Implementation Method 1

a laser unit configured to generate a laser beam for the Transmyocardial laser revascularization (TMLR) procedure

Methodology Applied
Scientific EffectLaser ablation: Laser Ablation

Implementation Method 2

an electrocardiogram (EKG) unit for measuring an electrical activity of the heart

Methodology Applied
Scientific EffectElectrocardiogram:

Implementation Method 3

a Vectorcardiography (VCG) unit for measuring an electrical activity of the heart

Methodology Applied
Scientific EffectVectorcardiography:

Implementation Method 4

optimize a plurality of laser parameters of the laser unit... ensure channels are created by the laser unit while the heart is full of blood to prevent thermal damage

Methodology Applied
Scientific EffectThermal damage prevention:

Data Source

PatentUS11801093B1System and method for trans myocardial laser revascularization
Publication Date: 2023.10.31 MIRHOSEINI MAHMOOD
  • US11801093B1 patent drawing
  • US11801093B1 patent drawing

AI summary

A system and method for transmyocardial laser revascularization (TMLR) in patients in need thereof, such as patients suffering from coronary artery disease. The system includes a Laser unit, an Electrocardiogram (EKG) unit, Vectorcardiography (VCG) unit, an Echocardiography unit, a spectrum Infrared sensor unit, and a control unit. The control unit can receive investigational data from different units and use the same to optimize the laser parameters. The Control unit can further include an AI module that can further analyze patient-related data, such as age and medical condition to further optimize the laser parameters. The laser unit can operate based on the optimized parameters to prevent unnecessary damage to the heart and allow maintaining the patency of the channels made by the laser for a longer duration.