Design and development of a cost-effective cpap device with oxygenation and an automated mdi delivery system

Résumé

Patients suffering from Covid-19 and Chronic Obstructive Pulmonary Disease (COPD), or asthma comorbidities receive Continuous Positive Airway Pressure (CPAP) therapy as one of the treatment options. They additionally require regular administration of a bronchodilator medication using a Metered Dose Inhaler (MDI) to open the airways of the lungs to make breathing easier. However, some challenges have been identified with existing techniques of using MDI with CPAP; a nurse must remain at the bedside to manually time the actuations and actuate the MDI. One of the current methods does not provide Positive End-Expiratory Pressure (PEEP), thereby reducing the medication's effectiveness. The current global Covid-19 pandemic has resulted in the limited number of Intensive Care Unit (ICU) resources such as bedside nurses and ventilators. Therefore, a need for a device that can provide oxygenation and automated MDI medication delivery has been identified to reduce the number of ICU admissions, increase the effectiveness of MDI treatment, and reduce the number of patients requiring intubation. This design project entails the development of a prototype as well as verification and validation tests. The prototype was built by focusing on the functional blocks and iterating the core component of the design. The prototype was then verified and validated. It was found the Proof of Concept of the device meets the requirements and works as intended. In conclusion, the project highlights how the needs are met and the drawbacks of the design are identified. Recommendations are then made on the improvement of the device's functionality and usability features.

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