Inhalation Flow Chamber Visual Feedback Mechanism
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Solution Overview
Problem
Current inhalation therapy devices fail to prevent medication loss, do not indicate ideal inspiratory flow, and are ineffective for pediatric or tracheostomy patients, particularly those with hearing impairments, as they do not account for low inspiratory flows and lack clear feedback mechanisms.
Innovation Solution
An inhalation flow chamber with a visible flow indicator that shows ideal inspiratory flow levels between 30 cm H2O and 60 cm H2O, allowing synchronization of inspiration and activation, and enabling medication delivery directly to the mouth or tracheostomy, or via an oronasal mask, enhancing patient comfort and education for healthcare professionals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If sound indicators are used to indicate inspiratory flow, then feedback is provided to patients, but patients with hearing impairments cannot receive this feedback
Solution Approach 1:
The patent replaces the acoustic feedback mechanism with a visual feedback mechanism using a flow indicator that displays inspiratory flow levels. This substitution allows patients with hearing impairments to receive feedback through visual channels rather than auditory channels, resolving the contradiction between providing feedback and accommodating hearing impaired patients.
Solution Approach 2:
The patent changes the feedback parameter from acoustic (sound-based) to visual (light or display-based). By transforming the feedback modality from auditory to visual, the system becomes accessible to patients with hearing impairments while maintaining the essential function of providing inspiratory flow feedback.
2Device complexity
If inhalation therapy devices are used without flow indication, then device complexity is reduced, but medication loss occurs due to inadequate inspiratory flow
Solution Approach 1:
The patent introduces a flow indicator that provides real-time feedback to patients about their inspiratory flow levels. This feedback mechanism guides patients to achieve the optimal inspiratory flow range, ensuring proper medication delivery while preventing medication loss due to insufficient flow, without adding excessive complexity to the device.
3Ease of operation
If MDI is used directly on patient's mouth, then device portability is maintained, but oropharyngeal impact increases and coordination is required
Solution Approach 1:
The patent introduces a flow indicator as an intermediary element between the MDI and the patient. This intermediary provides visual feedback that guides the patient's inspiration, reducing the coordination burden and minimizing oropharyngeal impact by ensuring proper inhalation technique without requiring complex patient-device coordination.
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 device optimizes medication delivery by ensuring correct inspiratory flow, reducing medication loss, and providing clear feedback, making it suitable for pediatric and tracheostomy patients, including those with hearing impairments, by visually indicating ideal flow levels and preventing medication loss during exhalation.
Implementation Method 1
a flow indicator that indicates the ideal levels
Data Source
AI summary
The invention is related to devices for inhalation therapy that allow optimizing the delivery of the medicament either directly to the mouth, the tracheostomy of the patient, or through the use of an oronasal mask. The inhalation flow chamber (1) comprises a mixed connector (3), an anterior body (19) with an exhalation window (15) housing an exhalation unidirectional membrane (5), an inhalation unidirectional membrane (10), a valve seal (14), a cylinder (18), a coupling port for the pressure indicator (20), a flow indicator (17), a lid for the chamber (7) and a coupling port for the metered-dose inhaler (6).