Respiratory Humidifier Communication Hub for Coordinated Control

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Solution Overview

Problem

Existing respiratory humidification systems lack effective electronic communication between components, leading to inefficiencies and inaccuracies in controlling the delivery of humidified breathing gas.

Innovation Solution

Implementing a respiratory humidification system with electronic communication connections between components such as the humidifier, ventilator, and breathing circuit, allowing for data exchange and coordinated control of operating parameters and modes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If electronic communication is implemented between humidifier and peripheral devices, then system coordination and control accuracy are improved, but device complexity increases

Engineering Contradiction:
Improvecontrol accuracyVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The humidifier is designed with multi-functionality to serve as both a humidification device and a central communication hub. It can communicate with multiple peripheral devices (nebulizers, pulse oximeters, incubators, flow generators) simultaneously, coordinating their operations through a unified control interface. This allows the humidifier to improve system coordination accuracy without requiring each device to have complex independent communication capabilities.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Productivity

If sensor data from multiple components is integrated, then system performance and response time are improved, but information processing requirements increase

Engineering Contradiction:
Improvesystem performanceVSAvoidinformation processing
Core Design Contradiction:
ProductivityVSLoss of information

Solution Approach 1:

The system implements feedback mechanisms where sensor data from multiple components (humidifier sensors, nebulizer temperature sensors, pulse oximeter readings, incubator temperature sensors) is continuously communicated to the humidifier. The humidifier processes this information and adjusts operating parameters in real-time, creating closed-loop control that improves system performance while maintaining information integrity through structured data exchange protocols.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP3744377B1Respiratory humidifier communication systems
Publication Date: 2025.09.17 FISHER & PAYKEL HEALTHCARE LTD
  • EP3744377B1 patent drawingFigure 1~2
  • EP3744377B1 patent drawingFigure 3~4
  • EP3744377B1 patent drawingFigure 5

AI summary

A respiratory humidification system (10) includes a humidifier (20) that is capable of electronic communication with one or more other components of the system thereby permitting transfer of data or control signals between the humidifier and other components of the system. In some systems, a flow generator (14), such as a ventilator, is provided to supply a flow of breathing gas. The humidifier and the flow generator are capable of electronic communication with one another. In some arrangements, an operating mode or parameter of the humidifier to be set or confirmed by the flow generator, either automatically or manually through a user interface of the flow generator. The humidifier can also utilize data provided by the flow generator or other system component, such as an incubator (152 cf. fig. 8), to set or confirm an operating mode or parameter of the humidifier. In some arrangements, a user interface of the humidifier can display data from another system component, such as a nebulizer or pulse oximeter.