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 medical insights based on biometric data collected during exercise activities.
Innovation Solution
A bed system equipped with sensors that can sense biometric data through an inflatable air chamber, allowing users to perform exercises like climbing stairs without wearing sensors, and generate stress test outputs by comparing pre- and post-exercise data, providing insights on potential medical conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If users wear sensors to perform stress tests, then measurement precision is improved, but ease of operation deteriorates
Solution Approach 1:
The patent uses an inflatable air chamber as an intermediary between the user and the sensing system. The air chamber contacts the user's body during exercise, and pressure changes within the chamber are detected by sensors to infer biometric data such as heart rate and respiratory rate. This eliminates the need for direct skin contact sensors while maintaining measurement capability.
Solution Approach 2:
The patent replaces traditional mechanical/wearable sensor systems with a pneumatic sensing system. Instead of using accelerometers, gyroscopes, or skin-mounted sensors, the system uses pressure changes in an air chamber to detect cardiopulmonary rhythms and derive biometric information non-invasively.
2Loss of information
If bed systems perform stress testing, then medical insight capability is improved, but device complexity worsens
Solution Approach 1:
The patent makes the bed system multi-functional by integrating stress testing capability into an existing mattress platform. The same air chamber infrastructure used for mattress inflation and firmness control is repurposed for biometric sensing during exercise, eliminating the need for separate dedicated stress testing equipment.
Solution Approach 2:
The patent combines the stress testing system with the mattress structure itself. The air chamber that provides mattress support is also used as the sensing medium for detecting pressure changes during exercise, merging two functions into a single integrated system rather than adding separate components.
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 information on their health conditions.
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.