Multifrequency Bioimpedance Device for Heart Failure Monitoring
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for monitoring heart failure status in patients are unreliable due to variations in fat and fluid content, and existing devices are often painful and impractical for long-term use outside a hospital setting, leading to poor patient compliance and inaccurate remote monitoring.
Innovation Solution
A medical device using multiple stimulation frequencies and waveforms to measure bioimpedance values, with electrodes and circuitry to isolate fluid and fat contributions, allowing for accurate physiological reporting and remote monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple stimulation frequencies and waveforms are used to measure bioimpedance, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent segments the bioimpedance measurement into multiple frequency components (e.g., low frequency for extracellular fluid, high frequency for total body water) and waveform types. By applying different frequencies and waveforms separately and analyzing their distinct responses, the system achieves precise differentiation of fluid compartments without requiring a single complex measurement system.
Solution Approach 2:
The patent changes the electrical stimulation parameters (frequency and waveform shape) to extract different physiological information. By varying frequency from low to high and using different waveform configurations, the system measures different tissue properties and fluid compartments, improving measurement precision through parameter variation rather than increasing hardware complexity.
2Ease of operation
If non-intrusive measurement methods are used, then ease of operation is improved, but measurement precision deteriorates
Solution Approach 1:
The patent creates a universal measurement system that uses the same non-intrusive electrode interface for multiple measurement functions. The single device performs various bioimpedance measurements by changing stimulation parameters rather than requiring different invasive probes, maintaining ease of operation while achieving precise measurements through multi-functional parameter analysis.
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 reliable and comfortable long-term monitoring of physiological parameters, including fluid and fat status, improving patient compliance and enabling remote health status tracking, which is critical for heart failure management.
Implementation Method 1
circuitry to measure fluid bioimpedance, fat bioimpedance or a combination thereof, as a result of the generated multiple stimulation frequencies, multiple waveforms or a combination thereof
Data Source
AI summary
Embodiments relate to a device and a method of monitoring and analyzing physiological parameters of a patient. The method includes electrically connecting one or more electrodes with a measurement site of a patient, generating a stimulation signal or signals sufficient to provide multiple stimulation frequencies, multiple waveforms or a combination thereof, measuring a one or more bioimpedance values from the generated signals and analyzing at least one of a fluid bioimpedance contribution, fat bioimpedance contribution or ion bioimpedance contribution within the one or more bioimpedance values sufficient to generate a physiological report.