Neuromodulation System Segmentation for Autonomic Control
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Solution Overview
Problem
Current neuromodulation systems for treating spinal cord injuries and autonomic dysfunctions suffer from poor selectivity and stability, leading to inadequate control over autonomic functions and potential side effects, particularly in managing blood pressure fluctuations.
Innovation Solution
A neuromodulation system comprising a sensing unit, control unit, and stimulation unit, which includes CNS and PNS modules, allows for precise control of autonomic functions by monitoring physiological parameters and adjusting stimulation parameters such as electrode configuration, frequency, and amplitude to stabilize autonomic functions, minimizing side effects and enabling continuous control and rehabilitation support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional neuromodulation systems are used for treating spinal cord injuries, then motor function restoration is achieved, but selectivity and stability are poor leading to inadequate control over autonomic functions
Solution Approach 1:
The system divides the neuromodulation approach into two distinct modules: a CNS stimulation module for restoring motor function and a PNS stimulation module for controlling autonomic functions. This segmentation allows each module to be optimized independently, with the PNS module providing selective control over blood pressure and other autonomic parameters without interfering with motor recovery efforts.
Solution Approach 2:
The system introduces physiological sensors as intermediaries that continuously monitor blood pressure, heart rate, and other autonomic parameters. These sensors provide real-time feedback to the control unit, which then adjusts PNS stimulation parameters accordingly. This intermediary feedback mechanism enables precise control over autonomic functions while maintaining overall system stability.
2Productivity
If neuromodulation is applied to restore motor function, then locomotion is improved, but side effects occur due to poor selectivity in stimulation
Solution Approach 1:
By separating motor function restoration (CNS module) from autonomic function control (PNS module), the system eliminates side effects that occur when a single stimulation approach is used for both purposes. The PNS module specifically targets peripheral nerves involved in blood pressure and heart rate control, avoiding unintended effects on motor circuits while maintaining motor recovery benefits.
Solution Approach 2:
The system applies different stimulation qualities to different physiological systems: high-frequency CNS stimulation for motor pathway activation and parameter-adaptive PNS stimulation for autonomic control. Each module uses stimulation parameters optimized for its specific target, reducing harmful effects on non-target tissues while maintaining therapeutic efficacy.
3Reliability
If blood pressure control is attempted after spinal cord injury, then cardiovascular stability is improved, but system complexity increases
Solution Approach 1:
The system combines blood pressure monitoring, heart rate monitoring, and PNS stimulation control into an integrated module that works alongside the CNS stimulation module. The control unit receives input from both modules and coordinates their operation, managing complexity through unified control logic rather than separate independent systems.
Solution Approach 2:
The system implements continuous feedback loops where physiological sensors monitor blood pressure and heart rate in real-time, and the control unit automatically adjusts PNS stimulation parameters based on this feedback. This closed-loop control achieves blood pressure stability without requiring complex manual intervention or overly sophisticated system architecture.
4Reliability
If continuous monitoring of physiological parameters is implemented, then autonomic function control is improved, but energy consumption increases
Solution Approach 1:
The system uses periodic sampling of physiological parameters rather than truly continuous monitoring. The control unit checks blood pressure and heart rate at defined intervals and adjusts PNS stimulation parameters accordingly. This periodic approach maintains adequate autonomic control while significantly reducing energy consumption compared to high-frequency continuous monitoring.
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 system provides optimized neuromodulation for improved recovery and daily life functionality by precisely controlling autonomic functions, reducing side effects, and maintaining stable blood pressure, thereby addressing the limitations of existing systems.
Implementation Method 1
a sensing unit wherein the sensing unit is configured to provide a sensor signal correlating with a physiological value, which describes neurological function or dysfunction
Implementation Method 2
a control unit, wherein the control unit is configured to detect a dysfunction of the neurological function, preferably autonomic function of the patient based on the sensor signal and to trigger neuromodulation
Implementation Method 3
a stimulation unit wherein the stimulation unit comprises at least one Central Nervous System (CNS) stimulation module for providing CNS stimulation, and/or at least one Peripheral Nervous System (PNS) stimulation module for providing PNS stimulation
Data Source
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AI summary
A neuromodulation and/or neurostimulation system (10, 110) comprising at least the following components: - at least one sensing unit (12, 112), wherein the sensing unit (12, 112) is configured to provide a sensor signal correlating with a physiological value, which describes neurological function or dysfunction, preferably autonomic function or dysfunction of a patient; - at least one control unit (14, 114), - at least one stimulation unit (16, 116), - at least one Central Nervous System (CNS) stimulation module for providing CNS stimulation (18), and/or at least one Peripheral Nervous System (PNS) stimulation module for providing PNS stimulation (20, 120); wherein the control unit (14, 114) is configured to detect a dysfunction of the neurological function, preferably autonomic function of the patient based on the sensor signal and to trigger neuromodulation for stabilization and/or treatment of the neurological function, preferably autonomic function of the patient. The invention further relates to a method for providing neuromodulation and/or neurostimulation and the use of a neuromodulation system in a method for the treatment of a patient.