Neuromuscular Stimulation for CSF Drainage via Lymphatic Pumping
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for cerebrospinal fluid (CSF) drainage are inadequate, leading to abnormalities linked to neurodegenerative diseases and other conditions, as they fail to effectively clear metabolic waste and pathogenic elements from the brain.
Innovation Solution
The systems and methods described stimulate lymph movement through the neck lymphatic system using neuromuscular electrical stimulation, mechanical actuators, vacuum suction devices, and implantable balloons to enhance CSF drainage, directing flow in a proximal direction and improving circulation and clearance of pathological materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional CSF drainage methods are used, then the drainage process is simple and non-invasive, but the drainage efficiency is insufficient and cannot effectively clear metabolic waste and pathogenic elements
Solution Approach 1:
The system segments the CSF drainage function into multiple independent components: a pump device for active fluid transport, a catheter system for targeted delivery, and a control system for regulation. This segmentation allows each component to be optimized for its specific function while maintaining overall system effectiveness.
Solution Approach 2:
The patent introduces an intermediary pump device that actively mediates CSF transport between the ventricular system and the absorption sites. This intermediary mechanism overcomes the passive limitations of natural CSF drainage and enables controlled, efficient fluid removal while clearing metabolic waste.
2Productivity
If active pumping mechanisms are introduced to improve drainage, then CSF clearance efficiency increases, but the risk of tissue damage and infection increases
Solution Approach 1:
The system employs a disposable or replaceable pump device and catheter assembly that can be sterilized or discarded after use. This approach minimizes the risk of persistent infection and tissue damage by ensuring that components in direct contact with CSF are either sterile single-use items or can be fully sterilized between uses.
Solution Approach 2:
The control system incorporates feedback mechanisms that monitor CSF flow rates, pressure levels, and system status in real-time. This feedback allows the system to adjust pumping parameters dynamically, preventing excessive pressure that could cause tissue damage and detecting potential infection or malfunction early.
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
These approaches effectively alleviate conditions such as Alzheimer's disease, hydrocephalus, and traumatic brain injuries by accelerating CSF drainage and clearance, thereby improving brain health and sleep quality.
Implementation Method 1
The controller is configured to deliver a neuromuscular electrical stimulation signal including at least one burst of pulses to at least one muscle in the subject's neck. The neuromuscular electrical stimulation signal is configured to induce a plurality of contractions of the at least one muscle.
Implementation Method 2
The contractions of the at least one muscle are configured to squeeze at least one lymph node to create a pumping force, and the pumping force is configured to direct CSF flow in a proximal direction.
Implementation Method 3
The controller is configured to sequentially activate the mechanical actuators to exert a positive pressure sequence in proximity to at least one lymph node in the subject's neck.
Implementation Method 4
The controller is configured to activate the vacuum suction device to exert a negative pressure sequence in proximity to at least one lymph node in the subject's neck.
Implementation Method 5
The controller is configured to inflate, using the actuator, the implantable balloon to compress the subject's cisterna magna.
Data Source
AI summary
Systems and methods for draining cerebrospinal fluid (CSF) are described herein described herein. In one implementation, an example system includes a signal generator, a plurality of electrodes operably connected to the signal generator, and a controller operably connected to the signal generator. The controller includes a processor and a memory. The controller is configured to deliver a neuromuscular electrical stimulation signal including at least one burst of pulses to at least one muscle in the subject's neck. The neuromuscular electrical stimulation signal is configured to induce a plurality of contractions of the at least one muscle. Additionally, the contractions of the at least one muscle are configured to squeeze at least one lymph node to create a pumping force, and the pumping force is configured to direct CSF flow in a proximal direction. The results in CSF drainage through the subject's neck lymphatic system.