Cryogenic Probe System With Automated Temperature Feedback Control
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Solution Overview
Problem
Current cosmetic treatments for wrinkles, fat, and cellulite often involve injecting toxins or untested cocktails, which pose risks and have limited effectiveness, and cryogenic treatments require careful temperature control to avoid tissue injury.
Innovation Solution
A cryogenic system comprising a probe, handpiece, and control unit that regulates cryogenic cooling, including a cryogen cartridge assembly for delivering refrigeration power, with automated refrigeration cycles and safety features like backup power and sensors for precise temperature control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If cryogenic cooling is applied to remodel target tissue, then cosmetic results are improved, but temperature control must be carefully maintained to avoid tissue injury
Solution Approach 1:
The system incorporates temperature sensors that continuously monitor the temperature of the probe and surrounding tissue, feeding this information back to the control unit. The control unit automatically adjusts the cryogen flow rate and cooling power based on real-time temperature readings, ensuring the tissue remains within the safe treatment window and preventing over-cooling that could cause injury.
Solution Approach 2:
The system dynamically changes multiple parameters including cryogen flow rate, cooling power, and treatment duration based on real-time temperature measurements and tissue response. The control unit modifies these parameters throughout the treatment process to maintain optimal cooling intensity while preventing tissue damage, allowing precise control over the remodeling effect.
2Productivity
If cryogen flow is increased to improve cooling effectiveness, then treatment speed is improved, but temperature control becomes more difficult
Solution Approach 1:
The control unit receives continuous temperature feedback from sensors and automatically adjusts the cryogen flow rate to match the actual cooling需求. When tissue temperature approaches the target range, the system reduces flow rate; when temperature is higher, it increases flow. This closed-loop control enables fast treatment without sacrificing temperature precision.
Solution Approach 2:
The system transitions from static, pre-programmed cooling protocols to dynamic, real-time adjustment of cryogen flow and cooling power. The control unit continuously adapts the cooling intensity based on actual tissue temperature and thermal conductivity measurements, allowing the treatment to respond to changing tissue conditions throughout the procedure.
3Measurement precision
If automated refrigeration cycles are implemented to improve temperature regulation, then treatment accuracy is improved, but device complexity increases
Solution Approach 1:
The control unit autonomously manages the entire refrigeration process without requiring manual intervention. It automatically activates the cryogen flow, monitors temperature sensors, adjusts cooling power, and terminates treatment when targets are reached. The system self-regulates based on sensor feedback, eliminating the need for operator judgment and reducing operational complexity despite the sophisticated control algorithms.
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 safe and effective remodeling of tissues with minimal collateral damage and pain, reducing the need for toxic injections and providing improved cosmetic results with greater control and accuracy.
Implementation Method 1
delivering refrigeration power to cool tissue
Implementation Method 2
cooling fluid flows through the probe and probe temperature decreases
Data Source
AI summary
A cryogenic system having a base unit tethered to a handpiece connectable to a needle probe. The handpiece holds a replaceable cryogen canister assembly. The base unit connects to mains to provide power to the handpiece. The base unit includes a back-up power source in the event of interruptions of power via mains.