Multi-Lumen CSF Purification Catheter for Targeted Toxin Removal
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Solution Overview
Problem
Existing CSF management systems fail to provide targeted, direct, and efficient removal of specific toxins from cerebrospinal fluid, leading to slow concentration reduction, reabsorption of toxins, and limited access to the total CSF volume, without addressing disease-specific needs.
Innovation Solution
A dual or multi-lumen catheter system for CSF processing that allows concurrent removal and return of conditioned CSF, with adjustable spacing between ports, and includes conditioning components like biospecific affinity and immunotherapy, enabling targeted removal of specific compounds and therapeutic agents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If passive dilution of CSF is used to reduce toxin concentration, then the volume of fluid required increases significantly, but the efficiency of toxin removal decreases and requires large volumes of artificial fluid
Solution Approach 1:
The patent extracts and removes specific toxic substances from CSF using selective filtration membranes and adsorbent materials that target and bind to particular toxins, rather than diluting the entire fluid volume. This allows concentrated removal of harmful substances while maintaining normal CSF volume and composition.
Solution Approach 2:
The invention employs porous filtration membranes with specific pore sizes and surface properties that selectively allow passage of beneficial CSF components while trapping and removing toxic substances. The porous structure provides large surface area for efficient toxin adsorption without requiring large fluid volumes.
2Ease of operation
If non-targeted CSF removal methods are used, then the procedure is simpler, but the ability to specifically remove particular toxins is lost
Solution Approach 1:
The patent incorporates different functional zones within the catheter system, with specific sections containing different adsorbent materials or filtration membranes tailored to target particular toxins. Each section has localized properties optimized for removing specific substances while maintaining overall procedural simplicity through a single catheter insertion.
3Device complexity
If close spatial placement of inflow and outflow catheters is used, then the device complexity is reduced, but the flow of CSF throughout the cerebrospinal fluid space is limited
Solution Approach 1:
The patent divides the catheter into multiple functional segments or lumens within a single device, with inflow and outflow ports positioned at different locations along the catheter length. This segmentation allows CSF to be drawn from and returned to different regions of the cerebrospinal fluid space, enhancing turnover efficiency while maintaining a relatively simple single-catheter configuration.
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
Achieves rapid, targeted, and efficient removal of toxins from CSF, minimizing reabsorption and accessing the entire CSF volume, providing a platform for treating various neurological diseases.
Implementation Method 1
using specific separation processes and therapeutic agents to address specific toxins
Implementation Method 2
with adjustable flow rates and port spacing for efficient mixing and turnover
Data Source
AI summary
The present invention provides methods and systems for conditioning cerebrospinal fluid (CSF) by removing target compounds from CSF. The systems provide for a catheter flow path and exchange of a majority volume portion of CSF in the CSF space. The removal and/or delivery of specific compounds can be tailored to the pathology of the specific disease. The removal is targeted and specific, for example, through the use of specific size-exclusion thresholds, antibodies against specific toxins, and other chromatographic techniques, as well as delivery and/or removal of targeted therapeutic agents.