Forehead Thermal Regulator for Sleep Modulation
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Solution Overview
Problem
Current treatments for insomnia, such as sedative-hypnotics and cognitive behavior therapy, are not entirely satisfactory due to adverse events and high costs, and there is a need for a safe, effective, non-invasive, non-pharmaceutical device to improve sleep and treat sleep disorders like insomnia.
Innovation Solution
Applying and maintaining target 'warm' temperatures between 25°C and 40°C to a subject's forehead using a thermal regulator unit and thermal applicator to enhance sleep, reduce sleep onset latency, and increase deeper sleep stages relative to stage 1 sleep.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sedative-hypnotics are used to treat insomnia, then sleep onset and maintenance are improved, but adverse events such as addiction, memory loss, and coordination problems occur
Solution Approach 1:
The patent replaces pharmacological treatment (chemical system) with a physical/thermal system. A thermal applicator delivers controlled heat to the forehead region, substituting the mechanical/chemical action of sedative-hypnotics with a thermal stimulus that modulates brain temperature to promote sleep without the harmful side effects of medications.
Solution Approach 2:
The patent introduces a thermal intermediary (heated applicator) between the user and the sleep regulation process. The thermal applicator acts as a mediator that transfers controlled heat to the forehead, which then influences hypothalamic thermoregulatory centers to modulate sleep-wake cycles, avoiding direct pharmacological intervention.
2Reliability
If cognitive behavior therapy is used to treat insomnia, then sleep quality is improved, but treatment cost and time investment increase significantly
Solution Approach 1:
The patent replaces the complex psychological/behavioral intervention system with a simplified physical thermal stimulation system. Instead of requiring lengthy cognitive behavior therapy sessions, the device applies controlled thermal stimulus to the forehead, providing a more time-efficient alternative that directly targets thermoregulatory sleep mechanisms.
3Reliability
If forehead temperature is increased to enhance sleep, then sleep quality and duration are improved, but risk of overheating and discomfort increases
Solution Approach 1:
The patent implements dynamic temperature control where the applicator adjusts heating levels based on real-time feedback. The system monitors temperature and automatically modulates the heating element to maintain optimal thermal stimulus without exceeding safe thresholds, preventing overheating while sustaining sleep-promoting effects.
Solution Approach 2:
The patent incorporates a feedback control system with temperature sensors that continuously monitor the applicator and forehead temperature. This feedback loop allows the control circuitry to adjust heating power in real-time, ensuring the thermal stimulus remains within the safe and effective range (32-40°C) to promote sleep without causing overheating or discomfort.
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 method significantly decreases sleep onset latency, increases sleep duration, and enhances the quality of sleep by promoting deeper sleep stages, as demonstrated in clinical studies with improved sleep efficiency and subjective sleep quality.
Implementation Method 1
maintaining the temperature of the thermal transfer region at a target temperature that is warmer than ambient temperature
Data Source
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Figure 1C
AI summary
Apparatuses and methods to enhance sleep, reduce sleep onset latency, extend sleep duration and/or increasing the duration of deeper sleep stages relative to stage 1 sleep. In general, these apparatuses and methods apply and maintain one or more target "warm" temperatures to a subject's forehead for a time period. The target temperature may be between 25 °C and 42°C. The target temperature may be a fixed amount greater than ambient temperature. The time period may be a fixed time period or a variable time period. These methods and apparatuses may limit the application of thermal energy to the subject's forehead region.