Adaptive Aerosol Delivery System Using Lung Function Data
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Solution Overview
Problem
Current pulmonary delivery techniques for aerosol particles to the lungs are inefficient due to variability in inhalation methods and patient-specific factors, leading to suboptimal drug delivery and compliance issues, as existing systems fail to automatically adjust aerosol parameters based on individual lung function data.
Innovation Solution
A method and system that adapt aerosol parameters such as inhalation volume and inspiratory flow rate using measured pulmonary function data, specifically using expiratory function parameters like FEV1, to tailor aerosol administration to a patient's breathing capabilities, eliminating the need for patients to concentrate on proper breathing techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If patients receive training for proper breathing maneuvers to ensure accurate aerosol formulation administration, then drug delivery accuracy is improved, but patient compliance and ease of operation deteriorate due to the inconvenience and difficulty of maintaining proper breathing techniques over time
Solution Approach 1:
The inhalation device automatically adapts aerosol parameters based on the patient's own lung function measurements, eliminating the need for patients to consciously control their breathing maneuvers. The device serves itself by using the patient's physiological data to autonomously optimize delivery parameters.
Solution Approach 2:
The system changes aerosol delivery parameters (inhalation volume, inspiratory flow rate) based on measured lung function parameters. By adapting these parameters to match the patient's actual breathing capabilities, the device maintains drug delivery accuracy without requiring the patient to maintain specific breathing techniques.
2Adaptability or versatility
If aerosol parameters are manually adjusted based on patient lung function parameters, then adaptability to individual patients is improved, but device complexity and the difficulty of determining specific values worsen
Solution Approach 1:
The patent replaces manual mechanical adjustment of aerosol parameters with an automated electronic control system. The controller automatically processes lung function measurements and adjusts aerosol delivery parameters without requiring manual calculation or adjustment by the user or clinician.
Solution Approach 2:
The controller acts as an intermediary between the lung function measurement and the aerosol delivery system. It translates measured lung function parameters into appropriate aerosol delivery settings, eliminating the need for direct manual intervention in the complex parameter matching process.
3Speed
If maximum inspiratory flow rate is used for aerosol administration, then delivery speed is improved, but comfort and reliability worsen because the maximum value differs from the comfortable continuous inhalation rate
Solution Approach 1:
Instead of using the maximum possible inspiratory flow rate, the system applies a partial action by selecting a flow rate that is optimized for continuous comfortable inhalation. This partial flow rate is sufficient for effective drug delivery while maintaining patient comfort and compliance over time.
Data Source
AI summary
The present invention is directed to methods, systems (100) and computer-readable products (280) for optimizing aerosol particle administration to the lungs. More specifically, the present invention relates to methods of tailoring inhaling maneuvers for aerosol particle administration using the subject's lung function data and to systems (100) and computer-readable products (280) carrying out such methods.