Infusion Height Warning Device Using Gravity Sensors
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Solution Overview
Problem
Conventional infusion devices face issues with maintaining a stable flow rate due to height differences between the infusion bottle and the patient, leading to discomfort, blockages, and backflow, as they lack a flexible two-stage warning and blocking mechanism, and are prone to false alarms from radio-frequency signal reflections.
Innovation Solution
An infusion height warning and blocking device utilizing gravity sensors to calculate infusion height differences and generate appropriate signals for warning and blocking, ensuring a stable flow rate by using a communication module, processing unit, and mechanical infusion blocker.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If radio-frequency signals combined with semi-obstructing metal structure are used to detect infusion height, then the infusion height can be detected, but false alarms occur due to signal reflections and the system lacks flexible two-stage operation
Solution Approach 1:
The patent replaces the radio-frequency signal-based detection system with a gravity sensor-based detection system. The gravity sensor directly measures gravitational acceleration to determine infusion height, eliminating the complexity of radio-frequency signal transmission, metal structure obstruction, and signal reflection issues that caused false alarms in the conventional system.
Solution Approach 2:
The patent changes the detection parameter from radio-frequency signal strength to gravity sensor output values. By using gravity sensor data to calculate infusion height, the system achieves more reliable detection without the false alarms caused by signal reflections, while enabling flexible two-stage operation through parameter-based control.
2Ease of operation
If the infusion bottle is positioned close to the patient to maintain comfort, then patient comfort is improved, but the infusion flow rate slows down and may cause blockages or backflow
Solution Approach 1:
The patent implements a feedback control system that continuously monitors infusion height using gravity sensors and provides real-time warnings when the infusion bottle is positioned too low. This feedback mechanism allows the system to maintain optimal infusion flow rate while ensuring patient comfort through automated monitoring and alerts.
Solution Approach 2:
The patent performs preliminary detection and warning before actual infusion problems occur. By using gravity sensors to detect infusion height in advance and providing warnings when the bottle is too close to the patient, the system prevents flow rate slowdown, blockages, and backflow before they happen, allowing proactive adjustment rather than reactive correction.
3Reliability
If nursing staff frequently change the needle due to infusion issues, then infusion problems are addressed, but patient discomfort increases and nursing time is consumed
Solution Approach 1:
The patent enables the infusion system to self-monitor and self-adjust by using gravity sensors to detect infusion height and automatically provide warnings when problems are detected. This self-service capability reduces the need for nursing staff to frequently intervene and change needles, thereby reducing nursing time and patient discomfort while maintaining infusion stability.
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
Accurately determines infusion height differences and performs differentiated operations to prevent backflow and excessive flow rates, enhancing patient comfort and reducing nursing interventions by using gravity sensors and a mechanical infusion blocker.
Implementation Method 1
capable of utilizing gravity sensors to accurately determine an infusion height difference
Data Source
AI summary
An infusion height warning and blocking device for an infusion stand is provided. The infusion height warning and blocking device includes a communication module for receiving at least one sensing signal from at least one gravity sensor; and a processing unit for calculating an infusion height difference between a start position and a usage position according to the at least one sensing signal, and generating at least one height indication signal according to the infusion height difference and at least one height difference threshold.