Implantable Lymph Node Sensor for Cardiomyopathy Monitoring
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Solution Overview
Problem
Current implantable medical devices lack effective monitoring and treatment capabilities for cardiomyopathy and inflammation, particularly in detecting changes in cardiac lymph nodes that indicate worsening cardiomyopathy or ischemia, which can lead to inadequate treatment and progression of cardiac diseases.
Innovation Solution
An implantable sensor system positioned at a lymph node, including a detection circuit that monitors physiologic parameters such as size, pressure, fluid content, and cytokine concentration, generating an indication of inflammation or cardiomyopathy progression, and optionally providing therapy adjustments based on detected changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If implantable medical devices are used for monitoring cardiac conditions, then patient diagnosis capability is improved, but the ability to detect organ-specific inflammation and cardiomyopathy progression is insufficient
Solution Approach 1:
The implantable medical device is enhanced with multiple sensor types (acoustic transducer, optical sensor, strain sensor, electrical impedance sensor, chemical sensor, temperature sensor) that can monitor various physiological parameters including lymph node size, pressure, fluid content, flow rate, electrical impedance, cytokine concentration, and temperature. This multi-functional sensing capability allows the single device to detect organ-specific inflammation, cardiomyopathy progression, and other cardiac conditions, resolving the contradiction between measurement precision and monitoring scope.
2Loss of time
If lymph node parameters are monitored to detect cardiomyopathy, then early detection capability is improved, but device complexity increases
Solution Approach 1:
The monitoring function is segmented into multiple specialized sensors, each designed to detect specific lymph node parameters (acoustic transducer for size, pressure sensor for pressure, optical sensor for fluid content, etc.). This segmentation allows early detection of cardiomyopathy through comprehensive parameter monitoring while managing device complexity by assigning specific detection tasks to dedicated sensor components rather than using a single complex sensor system.
3Reliability
If therapy adjustment is provided based on detected changes, then treatment effectiveness is improved, but system complexity increases
Solution Approach 1:
The device incorporates a therapy circuit that receives feedback from the detection circuit about lymph node parameter changes and automatically adjusts therapy accordingly. When the detection circuit identifies changes indicating cardiomyopathy progression or inflammation, the therapy circuit modifies treatment parameters to address the detected condition. This feedback mechanism improves treatment effectiveness by enabling adaptive therapy while managing system complexity through automated control algorithms that process sensor data and generate appropriate therapy adjustments.
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
Enables early detection of cardiomyopathy and ischemia, allowing for timely intervention and optimized therapy, thereby improving patient outcomes by monitoring cardiac health through lymph node parameters and providing adaptive treatment strategies.
Implementation Method 1
an acoustic transducer, an optical sensor, and a strain sensor
Implementation Method 2
an acoustic transducer, an optical sensor, and a strain sensor
Implementation Method 3
an acoustic transducer, an optical sensor, and a strain sensor
Implementation Method 4
an implantable electrical impedance sensor to provide a sensor signal representative of electrical impedance
Data Source
AI summary
An apparatus comprises an implantable sensor and a detection circuit. The implantable sensor provides a physiologic sensor signal and is to be positioned at a lymph node of a subject. The detection circuit detects a change in a physiologic parameter of the lymph node that exceeds a threshold change, and deems that the change in the physiologic parameter indicates a change in inflammation of an organ associated with the lymph node.