Blood-Brain Barrier Ultrasound Control Using Microbubble Feedback
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Solution Overview
Problem
Existing technologies face challenges in efficiently and safely controlling the opening of the blood-brain barrier for effective transfer of therapeutic agents, often causing damage to perivascular tissue due to unpredictable ultrasound irradiation.
Innovation Solution
An ultrasonic wave control method that analyzes acoustic signals from microbubble interactions to adjust ultrasound energy parameters in real time, using a therapeutic ultrasonication system with a signal generation condition setting unit, collection unit, frequency analysis, and control unit to manage duty cycle, pulse repetition frequency, and applied voltage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ultrasound energy is irradiated to open the blood-brain barrier, then therapeutic agents can be transferred into the brain, but perivascular tissue damage occurs
Solution Approach 1:
The patent applies feedback by receiving acoustic signals from microbubbles in real-time during ultrasound irradiation and adjusting the ultrasound parameters based on this feedback. The processor modifies the ultrasound output condition according to the acoustic signal characteristics, enabling dynamic control to achieve blood-brain barrier opening while minimizing perivascular tissue damage.
Solution Approach 2:
The patent implements dynamics by making the ultrasound output condition adjustable and variable rather than fixed. The system dynamically adapts the ultrasound parameters (such as intensity, duration, or frequency) based on real-time acoustic feedback, allowing optimal control of the blood-brain barrier opening process while avoiding excessive energy that could cause tissue damage.
2Reliability
If ultrasound irradiation parameters are not controlled, then the blood-brain barrier can be opened, but the opening is unstable and damage occurs
Solution Approach 1:
The system uses acoustic signal feedback to automatically adjust ultrasound parameters, reducing the need for manual control complexity. The processor continuously monitors acoustic signals and autonomously modifies output conditions to maintain stable blood-brain barrier opening, simplifying the operational burden while ensuring stability.
Solution Approach 2:
The patent changes physical parameters of the ultrasound energy based on acoustic signal analysis. By dynamically adjusting parameters such as intensity, duration, or frequency according to real-time acoustic feedback, the system achieves stable blood-brain barrier opening without requiring complex manual parameter control.
3Productivity
If microbubbles are used to enhance blood-brain barrier opening, then therapeutic agent transfer is improved, but acoustic signal analysis complexity increases
Solution Approach 1:
The system uses acoustic signal feedback from microbubbles to control ultrasound parameters, which improves therapeutic agent transfer efficiency. The feedback mechanism automatically adjusts settings based on microbubble response, reducing the need for complex manual analysis while maintaining high productivity.
Solution Approach 2:
The system allows the microbubbles themselves to provide information through their acoustic signals that guides the ultrasound treatment. The acoustic signals from the microbubbles are used to automatically adjust the treatment parameters, enabling the system to self-optimize based on the biological material's response without requiring complex external analysis systems.
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
Minimizes damage to perivascular tissue while stabilizing the blood-brain barrier opening by adjusting ultrasound energy based on acoustic feedback, ensuring safe and effective transfer of therapeutic agents.
Implementation Method 1
outputting, by the at least one processor, ultrasound energy corresponding to the output condition to the object, receiving, by the at least one processor, an acoustic signal due to an acoustic cavitation phenomenon of the acoustic cavitation generation material
Implementation Method 2
a therapeutic ultrasonication system for blood-brain barrier opening and an ultrasonic wave control method of the therapeutic ultrasonication system
Data Source
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AI summary
The present invention relates to an ultrasonic wave control method of a therapeutic sonication system for opening a blood-brain barrier, the method comprising the steps of: setting output conditions for outputting ultrasonic energy to an acoustic cavitation-inducing substance administered to a subject; outputting ultrasonic energy corresponding to the output conditions to the subject; receiving an acoustic signal resulting from acoustic cavitation induced by the acoustic cavitation-inducing substance; analyzing the acoustic signal to determine whether preset control conditions have been satisfied; and, depending on whether the preset control conditions have been satisfied, outputting ultrasonic energy after adjusting at least one of a duty cycle, the number of stimulation pulses per a predetermined time unit, pulse repetition frequency per a predetermined time unit, and applied voltage, among the output conditions of ultrasonic energy, or stopping the outputting of ultrasonic energy.