Treatment Tip Pressure Sensing for Adaptive RF Skin Contact Control
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Solution Overview
Problem
Conventional high-frequency output devices face issues with poor clinical and treatment effects due to inadequate timing of treatment, misjudgment, and increased internal space occupancy by multiple sensors, leading to potential skin damage and inefficient treatment.
Innovation Solution
A method for controlling a high-frequency output device using a pressure-sensitive sensor on the treatment tip to determine contact conditions, adjusting operation parameters such as power and frequency based on sliding speed and pressing force, reducing the need for multiple sensors and optimizing internal space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple sensors are added to the treatment tip to detect different movements, then the treatment timing accuracy is improved, but the internal space occupancy rate increases and cost increases
Solution Approach 1:
The pressure-sensitive sensor is designed to perform multiple detection functions simultaneously. It detects both pressing force (through pressure magnitude) and sliding speed (through pressure change rate), replacing what would traditionally require multiple separate sensors. This multi-functional approach improves treatment timing accuracy while minimizing internal space occupancy.
Solution Approach 2:
The patent utilizes different parameter extraction methods from a single pressure signal. By analyzing the pressure magnitude and its change rate over time, the system derives multiple pieces of information (contact detection, pressing force, sliding speed) from one sensor's output, thereby achieving high measurement precision without increasing sensor quantity or internal space requirements.
2Measurement precision
If multiple sensors are added to the treatment tip to detect different movements, then the treatment timing accuracy is improved, but the cost increases
Solution Approach 1:
The pressure-sensitive sensor serves multiple detection purposes: contact detection, pressing force measurement, and sliding speed measurement. This single-component multi-functional design reduces the total component count, lowering manufacturing costs while maintaining high treatment timing accuracy.
Solution Approach 2:
The patent merges the functions of multiple potential sensors (contact sensor, force sensor, motion sensor) into a single pressure-sensitive sensor. This consolidation reduces component procurement costs, assembly costs, and calibration costs, thereby improving ease of manufacture while achieving accurate treatment timing.
3Device complexity
If the treatment tip cannot perform treatment at the appropriate time, then the device simplicity is maintained, but the treatment effect deteriorates and skin injury may occur
Solution Approach 1:
The pressure-sensitive sensor provides real-time feedback on contact status, pressing force, and sliding speed. The control system uses this feedback to dynamically adjust treatment parameters or activate/deactivate treatment, ensuring treatment occurs at appropriate times. This feedback mechanism improves treatment safety and efficacy while maintaining relatively simple device structure.
Solution Approach 2:
The system performs preliminary detection of contact conditions, pressing force, and sliding speed before initiating treatment. By evaluating these parameters in advance, the system ensures treatment is activated only when appropriate conditions are met, preventing skin injury and improving treatment efficacy without requiring complex device architecture.
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
Improves treatment efficacy and safety by dynamically adjusting operation parameters to match the contact mode between the treatment tip and skin, ensuring effective and safe treatment while minimizing sensor space occupancy.
Implementation Method 1
a pressure-sensitive sensor configured to detect the contact condition between the treatment tip and the skin
Implementation Method 2
uses energy such as high-frequency ultrasound and high-frequency alternating current for achieving non-invasive treatment. This technology transmits high-frequency energy waves to a specific small area below the epidermis to produce local thermal effects
Data Source
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AI summary
Disclosed are a method for controlling a high-frequency output device based on a pressure-sensitive sensor, a treatment tip, and a high-frequency output device, relating to the technical field of high-frequency output devices. The pressure-sensitive sensor is provided at the treatment tip of the high-frequency output device, and the treatment tip is configured to contact skin. The method includes: step S10, obtaining a contact signal collected by the pressure-sensitive sensor, the contact signal being generated while the treatment tip contacts the skin; and step S20, determining a contact condition between the treatment tip and the skin according to the contact signal, controlling the high-frequency output device to output an operation power and/or an operation frequency with a corresponding value to the treatment tip.