Interchangeable Controllers for Air Delivery System Parameter Control
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Solution Overview
Problem
Existing flow generators for treating Sleep Disordered Breathing (SDB) and Non-Invasive Positive Pressure Ventilation (NIPPV) lack effective mechanisms to prevent inappropriate selection of operating parameters by untrained patients, potentially leading to ineffective or harmful treatment.
Innovation Solution
The introduction of interchangeable controllers with basic features for patients and advanced features for trained clinicians, allowing secure operation of the flow generator, with the primary controller being detachably mountable and programmable to restrict access to advanced settings, ensuring safe and effective treatment delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single control panel with multiple menus and features is provided, then the flow generator can support complex treatments, but untrained patients can inappropriately adjust operating parameters leading to ineffective or harmful treatment
Solution Approach 1:
The control panel is segmented into multiple hierarchical levels: a first level with basic controls accessible to patients, and a second level with advanced controls accessible only to trained clinicians. This segmentation allows the system to provide both simple and complex treatment capabilities while preventing untrained users from accessing potentially harmful advanced functions.
2Object-affected harmful factors
If security codes are implemented to prevent inappropriate adjustments, then patient safety is improved, but patients who learn the codes or if codes are not implemented, they can still access the same operating parameters as trained clinicians
Solution Approach 1:
The control interface is divided into distinct hierarchical levels with different accessibility requirements. The first level provides basic controls that are always accessible, while the second level requires verification of training status. This structural segmentation makes security inherent to the interface design rather than relying solely on secret codes that can be compromised.
3Object-affected harmful factors
If the control panel is simplified for patient use, then safety is improved, but the flow generator cannot provide complex treatments requiring advanced features
Solution Approach 1:
The control panel is organized into hierarchical levels where the first level contains basic controls for safe patient operation, and the second level contains advanced controls for complex treatments. This segmentation allows the system to simultaneously support both simplified patient operation and complex clinical treatments by providing appropriate controls at each level.
Solution Approach 2:
The control panel is designed to serve multiple functions and user types through its hierarchical structure. It can operate in a simplified mode for patient self-management and a full-featured mode for clinician-managed complex treatments, making the system universally applicable to both simple and complex treatment scenarios.
Data Source
AI summary
An air delivery system includes a controllable flow generator, a primary controller, and an auxiliary controller. The flow generator is operable to generate a supply of pressurized breathable gas to be provided to a patient for treatment. The primary controller is associated with at least one primary control feature to select at least a first aspect of operation of the flow generator. The auxiliary controller is associated with at least one auxiliary control feature to select at least a second aspect of operation of the flow generator. The second aspect selected by the auxiliary controller is different than the first aspect selected by the primary controller. The primary and auxiliary controllers may be interchangeably usable to control operation of the flow generator.