Therapeutic Irradiation Device Feedback Control
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Solution Overview
Problem
Existing therapeutic irradiation devices lack effective means to control the wavelength of light and the light dose, which are crucial for achieving optimal therapeutic effects in light therapy.
Innovation Solution
A therapeutic irradiation device comprising a source that emits electromagnetic radiation in a predetermined spectral range, a sensor to detect and output a signal indicative of the radiation power, and a controller to monitor and compare the signal magnitude with a predetermined range, identifying optimal treatment periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If no sensor and controller are used, then the device structure is simple, but the wavelength and light dose cannot be controlled
Solution Approach 1:
The patent implements a feedback control system where a sensor detects the actual light output from the source and feeds this information back to the controller. The controller compares the detected light characteristics with the target wavelength and dose parameters, then adjusts the source accordingly. This closed-loop feedback mechanism enables precise control of wavelength and light dose while maintaining a relatively simple device structure.
Solution Approach 2:
The patent replaces complex mechanical wavelength selection mechanisms (such as rotating filters or prisms) with an electronic control system that uses sensors and controllers to dynamically adjust light parameters. This substitution of mechanical systems with electronic control achieves precise wavelength and dose control while reducing mechanical complexity.
2Manufacturing precision
If no sensor and controller are used, then the device is easy to operate, but the light dose cannot be controlled
Solution Approach 1:
The patent implements a self-regulating system where the sensor continuously monitors the light output and the controller automatically adjusts the source to maintain the prescribed light dose. This self-service capability eliminates the need for manual dosimetry calculations and adjustments by the operator, achieving precise light dose control while maintaining ease of operation.
Solution Approach 2:
The feedback loop between the sensor and controller enables automatic light dose control. The sensor detects the actual light dose delivered, and the controller adjusts the source intensity and duration accordingly, providing precise dosimetry without requiring complex manual operation or specialized operator skills.
3Reliability
If the relative position is not monitored, then the device structure is simple, but the therapeutic effect is suboptimal
Solution Approach 1:
The patent uses the sensor to provide feedback on the relative position between the device and the treatment target. By monitoring changes in detected light intensity or characteristics, the controller can determine position variations and adjust the light output or device positioning to maintain optimal therapeutic conditions, ensuring reliable treatment effects.
Solution Approach 2:
The patent replaces complex mechanical position measurement systems with an optical sensing approach. The sensor detects position information through light intensity or pattern changes, and the controller processes this information to maintain optimal positioning, achieving reliable therapeutic effects with reduced mechanical 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 accurately monitors and controls the light dose and wavelength, ensuring optimal therapeutic effects by maintaining the correct relative position between the device and the subject, thereby enhancing the efficacy of light therapy.
Implementation Method 1
a sensor configured to detect electromagnetic radiation in the predetermined spectral range of the electromagnetic radiation emitted by the source and to output a signal indicative of a power of the detected radiation
Data Source
AI summary
A therapeutic irradiation device may include: a source configured to emit electromagnetic radiation in a predetermined spectral range, a sensor configured to detect electromagnetic radiation in the predetermined spectral range of the electromagnetic radiation emitted by the source and to output a signal indicative of a power of the detected radiation, and a controller configured to monitor a magnitude of the signal output by the sensor and to compare the magnitude of the signal with a predetermined magnitude range, wherein the controller is configured to identify a time period during which the magnitude of the signal output by the sensor is included in the predetermined range.