Disposable Sensor Device with Bridge Circuit for Parallel Monitoring
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Solution Overview
Problem
Existing patient monitoring systems require multiple sensor devices for parallel readings, leading to bulkiness and inconsistent measurements due to separate excitation voltage supplies, which can result in different arterial pressure values when sensors are not at the same heart level.
Innovation Solution
A disposable sensor device with a bridge circuit and dual connectors allows for simultaneous connection to multiple monitoring devices, with an excitation sensing circuit to manage excitation voltage distribution, ensuring consistent measurements and reducing bulkiness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate sensor devices are used for parallel monitoring, then each monitoring device can independently read the parameter, but the sensor device becomes bulky and frequency response deteriorates
Solution Approach 1:
The patent combines multiple sensor devices into a single integrated sensor unit with a bridge circuit. Instead of using separate sensor devices for each monitoring device, the invention merges their functions into one sensor that can serve multiple monitoring devices simultaneously, thereby reducing the overall volume while maintaining compatibility with multiple monitoring systems.
Solution Approach 2:
The sensor device is designed with universal functionality to work with multiple types of monitoring devices. The bridge circuit configuration and standardized connector allow the single sensor device to be universally compatible with different monitoring systems, eliminating the need for multiple specialized sensor devices.
2Adaptability or versatility
If multiple separate sensor devices are used for parallel monitoring, then each monitoring device can independently read the parameter, but measurement consistency deteriorates due to different excitation voltage supplies
Solution Approach 1:
The patent merges the excitation voltage supply function into a single centralized source within the bridge circuit. This ensures that all sensor elements receive the same excitation voltage, eliminating variations that would occur with multiple separate supply sources, thereby maintaining measurement consistency across all monitoring devices.
Solution Approach 2:
The bridge circuit is designed to provide equipotential excitation to all sensor elements. By ensuring that all parts of the sensor device operate at the same electrical potential level with respect to excitation voltage, the system eliminates measurement discrepancies that arise from potential differences in separate supply systems.
3Productivity
If two sensor devices are closely spaced to detect the same parameter, then parallel monitoring is enabled, but the sensors cannot be located at the same heart level resulting in different arterial pressure values
Solution Approach 1:
The patent merges multiple sensing functions into a single sensor device with multiple connectors. This allows one sensor to be positioned at a single location (same heart level) while still enabling parallel monitoring through multiple output connections, thereby eliminating the positioning errors that would occur with multiple closely spaced sensors.
Solution Approach 2:
The sensor device is segmented into multiple functional outputs while maintaining a unified sensing position. The single sensor element is divided into multiple signal paths that can connect to different monitoring devices, allowing parallel monitoring without requiring multiple physical sensor locations.
4Volume of moving object
If a single sensor device is used with multiple monitoring devices, then bulkiness is reduced, but the connector structure becomes complex to manage excitation voltage distribution
Solution Approach 1:
The connector is segmented into multiple independent terminal groups, each handling specific functions (signal output, excitation voltage supply, ground). This segmentation allows the complex electrical connections to be organized into manageable, standardized sections, reducing the perceived complexity while enabling multiple monitoring device connections.
Solution Approach 2:
The connector design incorporates dynamic adaptability where the excitation voltage supply path can dynamically serve multiple signal output paths. The single excitation voltage input can be distributed to multiple monitoring devices through the bridge circuit, creating a dynamic system that adapts to different connection configurations without requiring complex manual setup.
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 parallel monitoring by multiple devices using a single sensor, maintaining measurement consistency and reducing the need for multiple sensors, thus improving frequency response and patient data accuracy.
Implementation Method 1
a sensor for providing an electric quantity based on a quantity to be detected, a first signal terminal for providing a tap for the electric quantity
Data Source
Figure 1~2
Figure 3~4
Figure 5~7
AI summary
The invention relates to a disposable sensor device (51) for patient monitoring comprising a sensor (52) for providing an electric quantity based on a quantity to be detected, a first signal terminal (54) for providing a tap for the electric quantity, a first supply terminal (53) for supplying the sensor with an electrical supply quantity, a first connector for accommodating the first signal terminal (54) and the first supply terminal (53), a second signal terminal (56) for providing a further tap for the electric quantity, and a second connector for accommodating at least the second signal terminal (56). The invention further relates to a disposable sensor device for patient monitoring comprising a sensor (7) for providing an electric quantity based on a quantity to be detected; a first signal terminal (22) for providing a tap for the electric quantity; a first connector (A) for accommodating the first signal terminal, wherein the first connector (A) is provided with a trimming element (R2) which simulates the influence of a selectively attachable first monitoring device (1) on a measuring of the electric quantity, wherein the trimming element (R2) is electrically effective depending on a connector structure of a corresponding further connector (B, C) to be coupled with the first connector (A).