Cerebral Fluidic Device Sensor Deflection Monitoring
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Solution Overview
Problem
Current treatments for hydrocephalus, which involve devices to drain excess cerebrospinal fluid (CSF), have high failure rates, and there is no non-invasive way to assess whether these devices are functioning properly, leading to unnecessary procedures.
Innovation Solution
A fluidic device with a sensor system is positioned in a cerebral ventricle to detect CSF flow rates, using a deflection mechanism to measure flow and an optical system to focus light on the sensor, allowing for non-invasive monitoring of device functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a device is implanted to drain excess CSF, then the treatment of hydrocephalus is achieved, but the reliability of long-term device functionality deteriorates with high failure rates
Solution Approach 1:
The patent implements a sensor that continuously monitors CSF flow rates and provides real-time feedback about device functionality. This allows for early detection of device malfunction or obstruction, enabling timely intervention before complete failure occurs, thereby improving long-term reliability and extending effective service life.
Solution Approach 2:
The patent replaces traditional mechanical assessment methods with optical sensing technology. An optical sensor detects CSF flow by measuring light transmission or scattering properties, substituting mechanical measurement mechanisms with optical fields to achieve more reliable and non-invasive monitoring.
2Measurement precision
If invasive procedures are performed to assess device functionality, then accurate diagnosis is achieved, but patient risk and procedure complexity increase
Solution Approach 1:
The patent introduces an optical field as an intermediary to assess device functionality. Light serves as a non-invasive mediator that interacts with the CSF and sensor without requiring additional invasive procedures, thereby maintaining measurement precision while eliminating patient risk associated with invasive assessment methods.
Solution Approach 2:
The patent substitutes invasive mechanical assessment procedures with non-invasive optical sensing. Instead of requiring surgical intervention or physical manipulation to check device function, the system uses optical fields to detect CSF flow characteristics, achieving accurate diagnosis without patient risk.
3Ease of operation
If traditional CSF drainage devices are used, then hydrocephalus treatment is provided, but the ability to monitor device performance non-invasively is lost
Solution Approach 1:
The patent incorporates a sensing mechanism that provides continuous feedback on CSF flow rates and device performance. This feedback system enables non-invasive monitoring of device operation, allowing clinicians to assess functionality without invasive procedures while preventing information loss about device status.
Solution Approach 2:
The patent replaces the need for invasive monitoring procedures with an integrated optical sensing system. The optical sensor continuously measures CSF flow parameters, substituting mechanical assessment methods with optical detection to enable convenient non-invasive monitoring while preserving complete device performance information.
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 fluidic device provides a non-invasive means to assess CSF flow and device functionality, potentially reducing unnecessary procedures and improving the management of hydrocephalus and related conditions.
Implementation Method 1
The sensor is configured to deflect in response to a flow between the first channel and the second channel
Implementation Method 2
an optical system to focus light on the sensor
Data Source
Figure 1
Figure 2~4
AI summary
The present disclosure provides a fluidic device including (a) a first channel including a first inlet and a first outlet, (b) a second channel including a second inlet and a second outlet, wherein the second inlet of the second channel is in fluid communication with the first outlet of the first channel, and (c) a sensor positioned between the first outlet and the second inlet, wherein the sensor includes a sensor configured to deflect in response to a flow between the first channel and the second channel.