Portable Ventilator Host Interface for Continuous Respiratory Support
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Solution Overview
Problem
Patients requiring respiratory support face challenges during transfers between ventilators, including disruption of continuous ventilation, maintenance of positive end-expiratory pressure (PEEP), and risk of nosocomial infections due to repeated connection and disconnection from ventilator systems.
Innovation Solution
A portable ventilator system that allows continuous ventilation by seamlessly switching between a portable gas source and a host gas source, maintaining consistent ventilation parameters and preventing disconnection, with a design that includes a ventilation drive and patient interface section configured to removably connect to various hosts and gas sources, ensuring uninterrupted respiratory support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a patient is transferred between different ventilator systems (anesthesia ventilator to ICU ventilator), then the patient can receive appropriate respiratory support for different treatment settings, but the patient must be disconnected from one ventilator before connection to another, causing interruption of ventilation and exposing the airway to pathogens
Solution Approach 1:
The portable ventilator is designed with universal functionality to operate in both anesthesia and ICU settings. It can function as a standalone portable ventilator with integrated gas sources, or connect to external hosts (anesthesia machines or ICU ventilators) to provide respiratory support across different treatment environments without requiring patient disconnection
Solution Approach 2:
The portable ventilator acts as an intermediary device between the patient and different host ventilator systems. It maintains continuous connection to the patient while selectively connecting to or disconnecting from external hosts, thereby preventing direct exposure of the patient's airway to pathogens during transfers between ventilation systems
2Ease of operation
If a portable ventilator uses its own integrated gas source, then it can provide continuous ventilation during patient transport, but the gas supply duration is limited by the portable gas source capacity
Solution Approach 1:
The portable ventilator employs dynamic gas source selection capability. It can switch between its own integrated portable gas source during patient transport and external host gas sources when connected to fixed ventilator systems, thereby adapting the gas supply duration to match the operational context and extending overall ventilation support time
Solution Approach 2:
The portable ventilator is pre-equipped with an integrated gas source and power supply, enabling immediate independent operation during patient transport without requiring connection to external systems. This preliminary preparation ensures continuous ventilation can be maintained during critical transfer periods
3Duration of action of moving object
If the portable ventilator connects to external hosts for gas supply, then the duration of ventilation support is extended, but the system complexity increases with multiple connection interfaces
Solution Approach 1:
The portable ventilator incorporates universal connection interfaces that can interface with multiple types of host systems (anesthesia machines, ICU ventilators, gas sources). This multi-functionality is achieved through standardized connection protocols and adaptive recognition, allowing the device to extend ventilation duration across different settings without proportionally increasing operational complexity
Data Source
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AI summary
A ventilator system includes a ventilator and a host. The ventilator comprises a ventilation drive configured to drive ventilation gas from a gas source to a patient and a patient interface section configured to guide inspiratory gas along an inspiratory path from the ventilation drive to a patient connection, and guide expiratory gas along an expiratory path from the patient connection out of the ventilator. The patient interface section is configured to releasably connect to the ventilation drive. The ventilator is configured to removably connect to the host such that at least one of the inspiratory path and the expiratory path are diverted through the host when the ventilator is removably connected to the host.