Home based stress test
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Solution Overview
Problem
Current bed systems lack the capability to perform stress tests or cardiac stress tests without requiring users to wear sensors, and they do not provide real-time feedback or analysis of biometric data for medical conditions.
Innovation Solution
A bed system with a sensor integrated into the mattress that senses biometric data, instructs users to perform exercises like climbing stairs, and generates a stress test output based on pre- and post-exercise data, allowing for identification of potential medical conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a bed system performs stress testing without wearable sensors, then ease of operation is improved, but measurement precision deteriorates
Solution Approach 1:
The patent introduces an intermediary mechanism (the mattress itself) to capture biometric data. The mattress contains pressure-sensitive elements that detect cardiopulmonary signals through changes in air pressure within its chambers, eliminating the need for direct skin contact sensors while maintaining measurement capability
Solution Approach 2:
The patent replaces the mechanical wearable sensor system with a pneumatic sensing system embedded in the mattress. Instead of using mechanical pressure sensors requiring skin contact, the system uses air pressure changes within mattress chambers to detect cardiopulmonary rhythms, substituting one mechanical approach with another that achieves both comfort and precision
2Ease of operation
If biometric data is collected through air pressure changes in mattress chambers, then ease of operation is improved, but measurement precision deteriorates
Solution Approach 1:
The system performs preliminary signal processing and filtering on the raw air pressure data to enhance quality. By pre-processing the cardiopulmonary signals to remove noise and artifacts before analysis, the system maintains measurement precision despite using the less invasive mattress-based sensing approach
Solution Approach 2:
The patent transforms the raw air pressure parameter into more useful biometric parameters through signal processing. By converting pressure changes into heart rate, respiratory rate, and other cardiopulmonary metrics, the system maintains measurement precision while preserving the ease of operation benefits
3Measurement precision
If stress test output is generated by comparing pre- and post-exercise biometric data, then measurement precision is improved, but loss of time increases
Solution Approach 1:
The system implements real-time feedback during the stress test by continuously monitoring biometric parameters and providing immediate insights. This allows for dynamic adjustment of exercise intensity and provides timely medical insights without requiring lengthy post-test analysis periods
Solution Approach 2:
The system performs preliminary baseline measurements during the pre-exercise period to establish reference values. This preliminary data collection enables faster and more accurate comparison during and after exercise, reducing the total time needed for precise stress test evaluation
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 non-invasive stress testing and cardiac stress testing by analyzing changes in air pressure caused by cardiopulmonary rhythms, providing users and medical professionals with valuable insights into their health without the need for wearable sensors.
Implementation Method 1
The mattress can include an inflatable air chamber, wherein the sensor is in fluid communication with the air chamber to sense pressure signals of the user laying on the mattress
Data Source
AI summary
A first collection of biometric data of a user on a mattress of the bed system is sensed via a sensor of the bed system. The user is instructed to perform an exercise activity. The user is instructed to return to and lay on the mattress after performing the exercise activity. A second collection of biometric data of the user on the mattress of the bed system is sensed via the sensor of the bed system again after the user has performed the exercise activity. A stress test output is generated based on the sensed first biometric data and the sensed second biometric data. The stress test output is displayed to the user.