Humidification Chamber Vibration for High-Flow Vapor Control
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Solution Overview
Problem
Existing gas humidification systems face challenges in maintaining optimal temperature and humidity levels during high gas flow rates, leading to reduced vapor production due to boundary layer formation and heat loss, which affects the quality of gases delivered to patients.
Innovation Solution
The system incorporates a heater base with a vibrating humidification chamber and conduits with continuous heating elements, along with features like thermally conductive materials and ultraviolet light exposure to enhance vaporization and reduce contamination, while using sensors and processors for precise control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If gas flow rate is increased, then productivity is improved, but temperature and humidity levels deteriorate due to heat loss and boundary layer formation
Solution Approach 1:
The humidification chamber is mechanically vibrated at high frequency to disrupt the boundary layer formation on the liquid surface, preventing the stable layer that causes heat loss and reducing vapor production. This vibration mechanism directly addresses the temperature deterioration issue at high gas flow rates by continuously renewing the liquid surface and enhancing heat and mass transfer efficiency.
Solution Approach 2:
The system dynamically adjusts heating power and vibration frequency as controllable parameters to maintain optimal temperature and humidity levels despite varying gas flow rates. The controller modifies these parameters in real-time to compensate for heat loss and boundary layer effects, ensuring consistent vapor production across different productivity levels.
2Productivity
If gas flow rate is increased, then productivity is improved, but humidity levels deteriorate due to reduced vapor production
Solution Approach 1:
High-frequency mechanical vibration of the humidification chamber disrupts boundary layer formation and enhances liquid evaporation, directly increasing vapor production capacity. This allows the system to maintain adequate humidity levels even when gas flow rate is increased, resolving the contradiction between productivity and humidity maintenance.
Solution Approach 2:
The vibration mechanism operates continuously during gas flow to maintain constant disruption of boundary layers and sustained evaporation rates. This continuous action ensures that vapor production remains adequate throughout the gas flow process, preventing humidity deterioration at high productivity levels.
3Temperature
If heating is increased, then temperature level is improved, but energy consumption increases
Solution Approach 1:
The vibration mechanism enhances heat transfer efficiency from the heating element to the liquid by preventing boundary layer formation, which reduces the heating power required to achieve desired temperature levels. This efficiency improvement lowers energy consumption while maintaining effective vapor production.
Solution Approach 2:
The system dynamically adjusts heating power parameters based on real-time temperature feedback and gas flow conditions, applying heat only when and where needed. This intelligent control optimizes the balance between temperature maintenance and energy consumption, avoiding unnecessary energy waste.
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
The solution effectively maintains desired temperature and humidity levels, enhancing vapor production and ensuring consistent gas quality for patients, even at high flow rates, with reduced manufacturing costs and improved safety.
Implementation Method 1
The heater base energizes the heater, which in turn heats the liquid to a temperature that causes at least some of the liquid to become vapor through one or more of evaporation, vaporization and/or atomization
Implementation Method 2
The heater base energizes the heater, which in turn heats the liquid to a temperature that causes at least some of the liquid to become vapor through one or more of evaporation, vaporization and/or atomization
Implementation Method 3
at least a first portion of at least one of the side wall and the top wall being configured to allow for increased heat loss from gases in the gas flow path
Implementation Method 4
one or more fiber-optic cables, and/or ultrasonic reflection
Data Source
AI summary
In some embodiments, a humidification system includes a heater base having a heater plate, a humidification chamber, and circuit. The circuit can include various conduits, including an inspiratory conduit, expiratory conduit, Y-piece, patient conduit, and/or dry conduit. In use, the chamber contains a quantity of liquid. The heater base heats the heater plate, which in turn heats the liquid to a temperature that causes at least some of the liquid to become vapor, thereby humidifying the gases within the chamber. The gas is delivered to the patient via the inspiratory conduit. Various features can help control the system and ensure the patient receives gases having the desired conditions. These features can be used individually or in various combinations and subcombinations both in existing humidification systems and improved systems for respiratory humidification, laparoscopy, and other purposes.