Automated Lung Recruitment Maneuver System
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Solution Overview
Problem
Current lung recruitment manoeuvres in mechanically ventilated patients face challenges such as high and potentially harmful pressures, complexity in configuration and initiation, and the need for skilled clinicians, which can lead to adverse effects and increased morbidity.
Innovation Solution
An automated ventilation system and method that includes a full recruitment manoeuvre (FRM) with a recruitment phase and PEEP titration phase, and a quick recruitment manoeuvre (QRM) without PEEP titration, allowing for safer and quicker initiation by non-specialized medical personnel using preset settings and results from previous FRM manoeuvres.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a full recruitment manoeuvre with PEEP titration phase is performed, then optimal PEEP is identified and lung function is improved, but the procedure time is extended and complexity increases
Solution Approach 1:
The recruitment manoeuvre is divided into two distinct types: FRM (full recruitment manoeuvre) with PEEP titration phase for optimal PEEP identification, and QRM (quick recruitment manoeuvre) without PEEP titration for rapid execution. This segmentation allows clinicians to choose the appropriate procedure based on time availability and clinical needs, resolving the contradiction between thorough optimization and time efficiency.
Solution Approach 2:
The system stores results from previous FRM manoeuvres and automatically initiates QRM settings based on these pre-acquired data. This preliminary action eliminates the need to repeat the time-consuming PEEP titration phase when performing subsequent QRMs, while still maintaining reliability by basing settings on previously identified optimal parameters.
2Reliability
If high pressures are applied for effective lung recruitment, then collapsed alveoli are reopened, but the risk of ventilator induced lung injury increases
Solution Approach 1:
The system uses feedback from previous FRM results (including identified optimal PEEP and lung mechanics parameters) to automatically set QRM parameters. This feedback mechanism ensures that recruitment pressures are tailored to the specific patient's lung characteristics, achieving effective recruitment while minimizing the risk of over-distension and VILI.
Solution Approach 2:
The system dynamically adjusts pressure parameters based on patient-specific data from previous manoeuvres. By changing pressure levels according to individually determined optimal values rather than using fixed high pressures, the system maintains recruitment effectiveness while reducing harmful effects.
3Ease of operation
If automated recruitment settings are used, then the demand for clinical expertise is reduced, but the complexity of configuration and initiation remains high
Solution Approach 1:
The system performs preliminary configuration during the FRM manoeuvre, where all necessary patient-specific parameters and optimal settings are determined and stored. Subsequent QRMs can then be quickly initiated using these pre-configured settings, dramatically reducing both the expertise required and the configuration time for repeated manoeuvres.
Solution Approach 2:
The system copies successful FRM settings and results to initiate QRM configurations. Instead of requiring clinicians to manually configure complex parameters each time, the system automatically replicates proven settings from previous manoeuvres, simplifying operation while maintaining effectiveness.
Data Source
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AI summary
The present disclosure relates to ventilation system (1) comprising a breathing apparatus (2) for providing mechanical ventilation to a patient (3). The breathing apparatus is configured to perform, at a first point in time, an automated full recruitment manoeuvre, FRM, comprising a recruitment phase and a PEEP titration phase, the FRM being performed based on preset FRM settings. The breathing apparatus is further configured to perform, at a second and later point in time, an automated quick recruitment manoeuvre, QRM, comprising a recruitment phase but no PEEP titration phase, the QRM being performed based on preset QRM settings. The breathing apparatus is configured to initiate at least one QRM setting based on at least one FRM setting used for the FRM manoeuvre, and/or a result of the FRM manoeuvre.