Regional Saturation Shock Detection via Optical Sensor
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Solution Overview
Problem
Current methods for monitoring physiological shock in patients are invasive, provide global rather than local perfusion measurements, and rely on periodic clinical observations, which can be inaccurate and unreliable, especially in ill or pediatric patients.
Innovation Solution
A non-invasive monitoring system using regional saturation data from a sensor with light emitters and detectors spaced at different distances to assess oxygenation in specific tissues, determining regional saturation parameters and blood pressure, and providing real-time indicators of shock and fluid-responsiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If invasive procedures are used to monitor shock, then measurement precision is improved, but ease of operation deteriorates and device complexity increases
Solution Approach 1:
The patent replaces invasive mechanical procedures (catheters, needles) with non-invasive optical sensing. The optical sensor uses light absorption and scattering properties of blood to detect tissue perfusion and oxygen saturation, eliminating the need for physical penetration into the body while maintaining diagnostic accuracy for shock detection.
Solution Approach 2:
The patent introduces optical light as an intermediary medium to indirectly measure physiological parameters. Instead of directly measuring blood flow or pressure through invasive means, the system uses light interaction with tissue and blood to infer perfusion status and detect shock, providing an indirect but accurate measurement approach.
2Device complexity
If global perfusion measurements are used, then device complexity is reduced, but measurement precision deteriorates
Solution Approach 1:
The patent applies local quality by measuring perfusion at the specific tissue location where the optical sensor is placed rather than providing a global measurement. The sensor detects local tissue oxygen saturation and perfusion characteristics, enabling precise assessment of regional blood flow and identifying localized shock conditions in specific organ systems.
3Ease of operation
If periodic clinical observations are used, then ease of operation is improved, but reliability deteriorates
Solution Approach 1:
The patent implements continuous monitoring of tissue perfusion and oxygen saturation through the optical sensor, which continuously emits light and detects changes in real-time. This continuous data stream provides ongoing assessment of shock development and treatment response, eliminating the gaps and inaccuracies associated with periodic manual observations.
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 shock with local measurements, providing continuous and accurate monitoring of tissue perfusion, guiding therapy and assessing treatment effectiveness without the need for invasive procedures.
Implementation Method 1
a regional saturation sensor with an emitter and two detectors spaced at different distances from the emitter
Data Source
AI summary
According to various embodiments, a medical system and method for early detection of shock may include devices configured to provide information about multiple patient parameters. In certain embodiments, the system may receive input from a regional saturation sensor. Based on these inputs, the system may provide a diagnosis of shock and/or distinguish between various types of shock.