Time-interleaved OSA stimulation system based on pulse amplitude modulation and multi-modal closed loop
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-04-30
- Publication Date
- 2026-07-17
AI Technical Summary
Existing treatments for obstructive sleep apnea (OSA), such as CPAP and hypoglossal nerve stimulation devices, suffer from discomfort when worn, significant surgical trauma, high costs, and problems with DC bias accumulation. Traditional time-intervention (TI) technology has high power consumption, is difficult to miniaturize, and lacks a closed-loop regulation mechanism.
A time-interference OSA stimulation system based on pulse amplitude modulation and multimodal closed loop is adopted. The STM32F407 chip generates a high-frequency PWM carrier signal, which is combined with PAM modulation and active charge balance feedback module to achieve non-invasive and adaptive nerve stimulation. A time-interference electric field is formed in the deep region through multimodal electrode array, and the current guidance and frequency are dynamically adjusted to achieve closed-loop control.
It achieves non-invasive, painless, and low-power nerve stimulation, avoids the trauma of implantation surgery, meets the requirements of portable design, ensures tissue safety and high energy efficiency for long-term use, and has real-time closed-loop regulation capability.
Smart Images
Figure CN122399241A_ABST