Ultrasonic Sonotrode Micro-Texturing for Liposuction
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Solution Overview
Problem
Current ultrasonic liposuction devices face issues with thermal shock, tissue burns, and increased diameter requirements, leading to complications and instability during fat emulsification procedures.
Innovation Solution
An ultrasonic surface optimizer with an elongated cannula-type sonotrode featuring micro surfaces at the end, optimizing ultrasound output by creating a larger active area through irregularities and micro-textures, reducing thermal impact and the risk of burns while allowing efficient fat emulsification through smaller incisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a smooth cannula surface is used for ultrasonic liposuction, then the device structure is simple and easy to manufacture, but the ultrasound output efficiency is insufficient and thermal impact on tissues increases
Solution Approach 1:
The cannula surface is modified with micro-irregularities and micro-textures only at the treatment zone (distal end), while the rest of the cannula maintains a smooth surface for easy manufacture. This localized texturing increases the active area for ultrasound emission and improves fat emulsification efficiency without requiring complex fabrication of the entire cannula structure.
Solution Approach 2:
The invention transitions from a two-dimensional smooth surface to a three-dimensional micro-textured surface with peaks and valleys. This dimensional change creates multiple active emission points across the cannula surface, significantly increasing the effective area for ultrasound output and improving emulsification productivity.
2Stability of the object's composition
If the cannula diameter is increased to improve stability during procedure, then procedural stability improves, but the incision size must be increased and tissue trauma worsens
Solution Approach 1:
The invention changes the surface parameter (adding micro-textures) rather than the dimensional parameter (increasing diameter). This allows the cannula to maintain a small diameter for minimal incision and reduced tissue trauma, while the surface texturing provides the necessary stability and control during the procedure through increased tissue interaction surface area.
3Productivity
If high power ultrasonic output is used to improve fat emulsification speed, then productivity increases, but thermal shock and burn risk to tissues increase
Solution Approach 1:
The ultrasonic emission surface is segmented into multiple micro-scale active areas distributed across the cannula surface. This segmentation distributes the ultrasonic energy output across many small points rather than concentrating it, allowing high total power output for fast emulsification while reducing the power density at any single point, thereby minimizing thermal shock and burn risk.
4Productivity
If a micro-textured surface is created on the sonotrode, then the active area for ultrasound emission increases and emulsification efficiency improves, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
Instead of using complex mechanical systems to create micro-textures during manufacturing, the invention employs surface treatment processes such as chemical etching, plasma treatment, or laser texturing. These processes substitute complex mechanical machining with simpler, more cost-effective surface modification techniques that achieve the desired micro-irregularities without significantly increasing device complexity.
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
The device effectively reduces thermal impact on tissues, minimizes the risk of burns and complications, and enhances the efficiency of fat emulsification with reduced power consumption and increased stability, optimizing ultrasound output for improved procedural outcomes.
Implementation Method 1
High-frequency ultrasonic sound waves are used to obtain a homogenized mixture, which are transmitted through a solid cannula-type tube called a sonotrode and which allows the emulsification process of adipose tissue to be carried out
Implementation Method 2
An ultrasonic surface optimizer with an elongated cannula-type sonotrode featuring micro surfaces at the end, optimizing ultrasound output by creating a larger active area through irregularities and micro-textures
Implementation Method 3
reducing the thermal impact towards the tissue of the human body, in addition to reducing the risks of burns and complications
Data Source
AI summary
The present invention refers to an ultrasonic surface optimizer or ultrasonic probe to which a rough texture has been added to the entire tip of the sonotrode, which constitutes an improvement not only in its design but also in process efficiency, since it allows fragmenting or emulsify subcutaneous soft tissues optimally. The probe contains the following components: an ultrasonic vibrational energy source, a longitudinal handle with a proximal end and a distal end, each with a longitudinal stem axis. A connection at the proximal end of the longitudinal stem for connecting the longitudinal stem to the ultrasonic vibratory energy source; a point at the distal end of the longitudinal shank and one or more grooves near the tip, the grooves being generally transverse to the axis.