Monitor Device Calculating Alarm Generation Time Ratio

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Solution Overview

Problem

Current patient monitoring systems do not effectively quantify the workload of medical workers responding to alarms during physiological information measurement, requiring manual confirmation of patient and sensor states.

Innovation Solution

A monitoring method and system that calculates and outputs the alarm generation time and ratio for vital and technical alarms, enabling quantitative assessment of the workload on medical workers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If alarm notification is implemented during physiological information measurement, then patient safety is improved through timely abnormality detection, but medical worker workload increases due to frequent interruptions requiring physical presence at patient location

Engineering Contradiction:
Improvepatient safetyVSAvoidmedical worker workload
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent introduces an intermediary system (monitor device with display unit) between the alarm source and the medical worker. Instead of requiring the medical worker to physically approach the patient for every alarm, the system provides an intermediate display that shows alarm generation history, timing, and patterns, allowing the worker to assess situations remotely before deciding to intervene at the patient location.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Loss of information

If comprehensive alarm monitoring is implemented, then complete alarm history tracking is improved, but quantitative assessment of medical worker workload is lost without specific time ratio calculations

Engineering Contradiction:
Improvealarm history trackingVSAvoidworkload quantification
Core Design Contradiction:
Loss of informationVSLoss of time

Solution Approach 1:

The patent replaces manual workload assessment with an automated calculation system. The monitor device automatically computes the ratio of alarm generation time to total monitoring time, substituting manual time tracking and calculation with automated electronic computation. This provides quantitative workload data without requiring manual intervention for timing measurements.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system provides feedback to medical workers by displaying not only alarm history but also calculated time ratios that quantify workload. This feedback loop allows workers to understand the relationship between alarm frequency and their actual time investment, enabling better workload management and system optimization.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS20240099668A1Monitoring method and monitor
Publication Date: 2024.03.28 NIHON KOHDEN CORP
  • US20240099668A1 patent drawing
  • US20240099668A1 patent drawing
  • US20240099668A1 patent drawing

AI summary

A monitoring method includes a calculation step and an output step. The calculation step includes calculating an alarm generation time, in which at least one of a vital alarm notifying an abnormality of physiological information and a technical alarm is generated, or a ratio of the alarm generation time. The output step includes outputting the calculated alarm generation time or the calculated ratio.