Portable Ventilation Mask with Sensor-Activated Blower
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Solution Overview
Problem
Patients under conscious sedation often experience unsafe levels of ventilation during medical procedures, and existing bag-valve-mask devices are difficult to use effectively, leading to potential respiratory complications due to improper tidal volume and breath rate delivery.
Innovation Solution
A portable ventilation system with a mask and blower assembly that includes a breath delivery mechanism, allowing for one-handed operation and sensor-activated airflow delivery, which can be worn on the wrist and powered by a battery assembly, enabling efficient and controlled ventilation support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a bag-valve-mask device is used to provide manual ventilation, then ventilation support can be provided to patients incapable of spontaneous respiration, but the device requires use of both hands and full attention of the clinician, making it difficult to master and operate
Solution Approach 1:
The patent replaces the manual mechanical squeezing action with an automated blower mechanism that delivers breaths through a mask. The system uses a breath delivery mechanism with sensors to detect when a breath is needed and automatically activates the blower to provide controlled ventilation, eliminating the need for manual operation while maintaining reliable ventilation support.
Solution Approach 2:
The ventilation system monitors the patient's respiratory status and automatically determines when ventilation is needed. The breath delivery mechanism activates the blower based on detected respiratory parameters, allowing the system to self-regulate and provide appropriate ventilation without requiring continuous manual intervention or full clinician attention.
2Ease of operation
If a blower assembly is integrated into the ventilation mask for automated breath delivery, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The patent combines the blower assembly, breath delivery mechanism, and ventilation mask into a single integrated device. The blower is positioned in fluid communication with the mask through a tube assembly, merging the ventilation delivery components into one unified system that can be operated with one hand while providing automated breath delivery.
3Measurement precision
If sensor-activated breath delivery is implemented, then precision of tidal volume delivery is improved, but device complexity and cost increase
Solution Approach 1:
The patent incorporates sensors that detect respiratory parameters and provide feedback to the breath delivery mechanism. The sensors monitor when a breath is needed and activate the blower accordingly, enabling precise control of tidal volume delivery while automatically adjusting to patient needs without requiring complex manual adjustment mechanisms.
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 system provides reliable and controlled ventilation support, reducing the risk of respiratory complications by allowing for precise tidal volume delivery and monitoring of respiratory parameters, even with varying leak conditions, thus improving patient safety during procedures.
Implementation Method 1
a blower assembly positioned in fluid communication with the inlet opening of the mask body to direct the airflow to the inlet opening of the mask body
Implementation Method 2
the breath delivery mechanism includes a sensor coupled to the ventilation mask, and the sensor detects squeezing pressure applied to opposite sides of the outer surface of the mask body
Data Source
AI summary
A portable ventilation system (100) can have a ventilation mask. The ventilation mask includes a mask body (102) having an outer surface (106) and an inner surface (108) configured for engagement with a face of a subject. The mask body (102) defines an inlet opening (110) configured to receive an airflow. The ventilation system (100) further includes a blower assembly (112) positioned in fluid communication with the inlet opening (110) of the mask body (102) to direct the airflow to the inlet opening (110). A breath delivery mechanism (104a-b), that when manually operated, activates the blower assembly (112) and delivers a breath to the subject by increasing a pressure within the ventilation mask.