Portable Medical Sensor Signal Quality Feedback
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Solution Overview
Problem
Medical staff face inefficiencies in monitoring the quality of signals from portable medical devices, as they cannot visually assess signal quality from a central unit, leading to time-consuming checks and potential signal deterioration over time.
Innovation Solution
A patient-worn medical measuring device that directly measures and signals signal quality via acoustic and optical means, such as LEDs, to indicate poor signal quality, allowing for automatic and on-demand monitoring without needing to access a central unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If portable measuring apparatuses are used instead of stationary devices, then patient mobility and freedom of movement are improved, but the ability of medical staff to monitor signal quality in real-time deteriorates
Solution Approach 1:
The portable measuring apparatus incorporates a feedback mechanism that automatically evaluates measuring signal quality and provides real-time notifications to medical staff when signal quality deteriorates. This allows continuous monitoring without requiring medical staff to physically check the stationary apparatus, thus maintaining patient mobility while solving the monitoring problem.
Solution Approach 2:
The system enables self-service monitoring where the portable apparatus autonomously assesses its own signal quality and communicates status to medical staff. This eliminates the need for manual checking by medical personnel while preserving the portability benefit, as the device serves itself in monitoring its operational state.
2Reliability
If medical staff check signal quality at the stationary apparatus, then signal quality monitoring is achieved, but time consumption increases
Solution Approach 1:
The portable apparatus performs preliminary signal quality assessments continuously and automatically, so that when medical staff need to review status, the information is already prepared and available. This eliminates the need for time-consuming manual checks at the stationary apparatus while ensuring signal quality reliability through continuous preliminary evaluation.
Solution Approach 2:
The system replaces the mechanical process of medical staff physically going to check the stationary apparatus with an automated electronic notification system. The portable device substitutes human manual inspection with automatic signal quality evaluation and electronic communication, dramatically reducing monitoring time while maintaining reliability.
3Use of energy by moving object
If portable apparatuses with small displays are used, then device size and power consumption are reduced, but the ability to display detailed measuring data deteriorates
Solution Approach 1:
The system segments the display function between the portable apparatus and the stationary apparatus. The portable device displays only essential information (signal quality status, basic measurements) to minimize power consumption and size, while detailed measuring data is displayed at the stationary apparatus where full display capabilities are available. This segmentation resolves the contradiction by allocating display tasks appropriately.
Solution Approach 2:
The portable apparatus acts as an intermediary that collects and processes measuring data, then selectively transmits relevant information to medical staff or the stationary apparatus. It serves as a mediator between the sensors and the full display system, providing just enough information locally to maintain low power consumption while enabling access to detailed data when needed at the stationary device.
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
Reduces the time and effort required for medical staff to monitor signal quality, enabling immediate adjustments and ensuring reliable data transmission by providing real-time feedback on signal quality at the point of measurement.
Implementation Method 1
the at least one measuring apparatus can be designed to signal the quality of the measuring signal optically, for example by a display with LEDs or on an LCD. The light means may also be, for example, a three-colored LED
Data Source
AI summary
A medical measuring device or system (10) includes at least one measuring apparatus (12, 14). Each measuring apparatus, in turn, has at least one sensor (16, 18) for generating a measuring signal representing a sensed physiological parameter, e.g. ECG signals, of a patient (20, 22). The measuring apparatuses (12, 14) incorporate the measuring signal into a carrier signal which is transmitted a wireless communication route (24, 26) to a centrally located data detection device (24) which displays graphs (42) or numerical values (40) representing the sensed physiological parameters. The at least one measuring apparatus (12, 14) signals the quality of the measuring signals to a wearing patient (20) via an LED (32, 34) or loudspeaker (28, 30).