Frequency Signal Processing Circuit for Implantable Electrical Stimulation
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Solution Overview
Problem
Current implantable electrical stimulation devices require precise alignment with external controllers for wireless power supply, leading to decreased efficiency and increased complexity, and are prone to interference from electromagnetic waves, making them difficult to use effectively.
Innovation Solution
An electrical stimulation device with a signal receiving circuit and a signal processing circuit that receives and processes frequency signals for generating electrical stimulation signals, allowing for reduced circuit complexity, smaller device size, and increased convenience, including a protection circuit to prevent erroneous operations due to external interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If wireless power supply is used without batteries, then device size is reduced, but precise alignment with external controller is required and efficiency decreases
Solution Approach 1:
The patent employs periodic pulsed electrical stimulation signals with specific duty cycles and frequencies to achieve effective nerve stimulation while maintaining efficient wireless power transfer. The periodic activation allows the device to receive power in pulses rather than continuous transmission, improving overall system efficiency.
Solution Approach 2:
The patent utilizes adjustable electrical parameters including frequency, amplitude, and pulse width of the stimulation signals to optimize both power transfer efficiency and stimulation effectiveness. By dynamically changing these parameters, the system adapts to different implantation depths and tissue characteristics.
2Reliability
If implantable electrical stimulator is placed deep in body, then therapeutic effect is improved, but efficiency of receiving electrical energy is greatly decreased
Solution Approach 1:
The patent employs dynamic adjustment of stimulation parameters based on real-time feedback and implantation depth. The system can adaptively modify frequency, amplitude, and pulse characteristics to maintain optimal energy transfer efficiency regardless of implantation depth, ensuring effective power delivery to deep-located nerves.
Solution Approach 2:
The patent replaces traditional mechanical battery-powered systems with wireless electromagnetic energy transmission. This substitution eliminates the need for physical battery compartments and complex power management mechanisms, enabling deeper implantation without compromising energy supply efficiency through direct electromagnetic coupling.
3Adaptability or versatility
If implantable electrical stimulator is close to unspecified emission source, then device may be induced to perform electrical stimulation, but this increases user trouble and reduces ease of operation
Solution Approach 1:
The patent incorporates feedback mechanisms that monitor the electrical environment and distinguish between intentional control signals and external interference. The system uses acknowledgment signals and protocol verification to confirm legitimate commands while ignoring spurious emissions, preventing erroneous stimulation while maintaining responsiveness to valid user input.
Solution Approach 2:
The patent implements preliminary authentication and signal verification protocols before executing stimulation commands. The device checks for proper signal formatting, timing, and authorization codes in advance, preventing activation by unauthorized or erroneous electromagnetic sources while maintaining readiness for legitimate therapeutic delivery.
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 solution effectively decreases circuit complexity, reduces device size, and enhances user convenience by enabling wireless energy transmission and reducing the risk of unintended stimulation due to external electromagnetic interference.
Implementation Method 1
The external controller and the implantable electrical stimulator without battery must be precisely aligned, otherwise the implantable electrical stimulator may not receive electrical energy
Data Source
AI summary
The present disclosure provides an electrical stimulation device. The electrical stimulation device includes a signal receiving circuit and a signal processing circuit. The signal receiving circuit receives and outputs a frequency signal. The signal processing circuit receives the frequency signal and provides an electrical stimulation signal according to the frequency signal.