Skin Treatment Device Pressure Feedback Control
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Solution Overview
Problem
Existing skin treatment devices provide feedback that can be annoying when applied incorrectly, particularly when the user intentionally pauses the treatment, undermining user trust in the feedback system.
Innovation Solution
A skin treatment device with a force or pressure sensor that provides distinct feedback indications for optimal pressure range, too high pressure, too low pressure, and non-contact, with additional thresholds to differentiate between intentional pauses and actual device release, ensuring continuous operation and accurate feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If feedback is provided to guide user pressure application, then treatment effectiveness is improved, but user annoyance increases when feedback is provided during intentional pauses
Solution Approach 1:
The feedback system dynamically adapts its behavior based on detected user actions. When the device detects that the user has deliberately paused or removed the device from the skin, the feedback mechanism suspends or modifies its feedback output, thereby avoiding annoyance during intentional pauses while maintaining effectiveness during actual treatment.
Solution Approach 2:
The system provides feedback about pressure application to guide the user during treatment, but the feedback mechanism is intelligent enough to detect when the user is pausing or removing the device, and accordingly suspends feedback during these periods to avoid annoyance while maintaining helpfulness during active use.
2Measurement precision
If multiple feedback indications are provided for different pressure levels, then guidance accuracy is improved, but device complexity increases
Solution Approach 1:
The feedback system segments the pressure range into distinct zones (optimal pressure range, too high pressure, too low pressure) and provides different indications for each zone. This segmentation allows for precise and differentiated feedback while managing complexity through clear, discrete categories rather than continuous complex analysis.
Solution Approach 2:
The system uses visual indicators such as color changes to communicate different pressure states to the user. Different colors or light patterns represent different pressure levels (optimal, too high, too low), providing intuitive and accurate feedback without requiring complex textual or auditory explanations, thereby reducing perceived system complexity.
3Duration of action of stationary object
If the device provides feedback during brief interruptions, then continuous guidance is maintained, but unwanted feedback causes annoyance
Solution Approach 1:
The feedback system dynamically detects whether the user is in the middle of a treatment interruption or has deliberately paused. During brief, unintentional interruptions, feedback continues to provide guidance. During deliberate pauses or removals, feedback is suspended or modified, thereby maintaining continuity during accidental breaks while avoiding annoyance during intentional pauses.
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
Enhances user experience by providing relevant feedback, optimizing treatment effectiveness, and maintaining device functionality during brief interruptions, thus encouraging optimal usage and reducing annoyance.
Implementation Method 1
a force or pressure sensor for determining a force or pressure with which the skin treatment device is held against the skin of a user during use
Data Source
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AI summary
A skin treatment device provides feedback to a user relating to the force or pressure they are applying. In addition to the feedback provided for indicating that the pressure is too high, correct, or too low, there is a further feedback type when the force or pressure is below a lowest threshold value, indicating that there is no contact between the skin and the device. Providing the same feedback information when the user is applying a too low pressure as when the user has deliberately released the device from contact with the skin is thereby avoided.