2D HIFU Transducer Scanning for Multi-Depth Skin Treatment
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Solution Overview
Problem
Conventional HIFU devices lack flexibility in ultrasonic wave radiation patterns and intensities, limiting customized skin treatment and posing risks of tissue damage.
Innovation Solution
A high-intensity focused ultrasound device with a two-dimensional movement mechanism for the transducer along the X-axis and Y-axis, enabling various irradiation patterns and stepwise energy delivery using multiple transducers with different focal depths, synchronized with precise control over movement and ultrasound emission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional HIFU devices use a single ultrasonic radiation pattern and intensity, then the device structure is simple, but it cannot deliver customized treatment for various skin conditions and depths
Solution Approach 1:
The transducer is equipped with a two-dimensional movement mechanism that can dynamically change its position and radiation pattern on the skin surface. The controller enables the transducer to move along predefined paths (spiral, zigzag, wave) and adjust radiation patterns in real-time, transforming a static device into a dynamic system that adapts to different treatment requirements without requiring multiple fixed device configurations
Solution Approach 2:
The treatment area is divided into multiple zones with different radiation patterns and intensities. The controller segments the ultrasonic radiation into different phases, each targeting specific skin depths and areas with customized parameters, allowing tailored treatment for various skin conditions while using a single transducer head
2Reliability
If high-intensity ultrasonic waves are radiated to achieve deep skin penetration, then therapeutic effect is improved, but tissue damage and side effects increase
Solution Approach 1:
Different regions of the skin receive different ultrasonic intensities and radiation patterns according to their specific treatment requirements. The controller applies high intensity to deep dermis layers where needed while using lower intensity or different patterns for superficial layers, creating localized quality variations that maximize therapeutic effect while minimizing overall tissue damage risk
Solution Approach 2:
The system uses periodic or pulsed ultrasonic radiation rather than continuous high-intensity waves. The controller regulates the timing and duration of ultrasonic emission, allowing thermal energy to build up gradually in target depths while providing rest periods that prevent excessive heat accumulation and tissue damage at the skin surface
3Adaptability or versatility
If a single transducer is used for all treatment depths, then the device is simple, but it cannot deliver stepwise energy to various skin layers
Solution Approach 1:
The system achieves multi-depth treatment capability by dynamically changing ultrasonic radiation parameters rather than using multiple physical transducers. The controller adjusts frequency, intensity, and radiation pattern parameters in real-time to optimize energy delivery to different skin depths, allowing a single transducer to perform the work of multiple specialized transducers
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
Enables customized and safe skin treatment with improved therapeutic effects and reduced treatment time, achieving 40% improved skin elasticity and 30% reduced time compared to conventional methods.
Implementation Method 1
a transducer that is provided in the cartridge housing and delivers the ultrasonic waves to a target depth of the skin
Implementation Method 2
ultrasound energy having an intensity of 0.5 W/cm2 or greater, which is focused at a specific focal depth to deliver thermal energy to the deeper layers of the skin
Implementation Method 3
a driving unit configured to move the transducer... an X-axis driving unit configured to move the transducer in an X-axis direction, and a Y-axis driving unit configured to move the transducer in a Y-axis direction
Implementation Method 4
a controller electrically connected to the driving unit to control the operation thereof. The controller controls the driving unit such that the transducer forms a predefined two-dimensional pattern on the skin through a combination of movements in the X-axis and Y-axis directions
Data Source
AI summary
Disclosed is a device capable of delivering two-dimensional high-intensity focused ultrasound (HIFU). The device for delivering high-intensity focused ultrasound to the skin comprises: a cartridge housing configured to be positioned adjacent to the skin during ultrasound delivery; a transducer disposed within the cartridge housing and configured to transmit ultrasound toward the skin; a driving unit configured to move the transducer; and a controller electrically connected to the driving unit and configured to control the driving unit.