Tourniquet Hazard Suppressor for Touchscreen Safety
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Solution Overview
Problem
Surgical tourniquet systems with touchscreen user interfaces pose additional hazards due to user errors and malfunctions, which can lead to unintended changes in cuff pressure, potentially causing injury or blood flow during surgical procedures.
Innovation Solution
A hazard suppressor system that monitors user-initiated actions through a touchscreen interface and remote interface, using a combination of sensors and logic to detect malfunctions and prevent potentially hazardous actions, such as cuff deflation or pressure changes, by selectively interrupting power supply and activating alarms to ensure safe operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a touchscreen user interface is implemented in a surgical tourniquet system, then ease of operation is improved, but reliability deteriorates due to user errors and malfunctions
Solution Approach 1:
A hazard suppressor module is introduced as an intermediary between the touchscreen user interface and the cuff pressure control system. This intermediary monitors user inputs and system states, blocking potentially hazardous actions (such as unintended cuff deflation or pressure changes) while allowing safe operations to proceed. The hazard suppressor thus mediates between the user interface and the critical pressure control functions, preventing user errors from causing harm.
2Ease of operation
If touchscreen interface functionality is enhanced, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The tourniquet system is segmented into distinct functional modules: the touchscreen user interface, the hazard suppressor module, the pressure control system, and the cuff system. The hazard suppressor is further divided into sub-components including a user action detector, a hazard detector, and a suppressor. This segmentation allows each module to be independently designed, tested, and maintained, managing overall system complexity while preserving enhanced user interface functionality.
3Reliability
If hazard detection and suppression capabilities are added, then reliability is improved, but device complexity increases
Solution Approach 1:
The hazard suppressor module combines multiple functions into a single integrated unit: user action detection, hazard detection, and action suppression. Rather than adding separate independent systems for each function, they are merged into one cohesive module that interfaces with the existing touchscreen and pressure control systems. This merging approach improves reliability through comprehensive hazard monitoring while minimizing the increase in device complexity.
Data Source
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AI summary
A tourniquet hazard suppressor suppresses an action initiated by a user of a surgical tourniquet system having a touchscreen user interface if implementation of that action by the system may be hazardous to a surgical patient.