Innovative Design and Experimental Research for a Novel Electric Assisted Inhaler
Based on the difficulty of hand and mouth coordination and the unclear number of remaining doses in the process of medication for asthma patients,a novel electric asthma assisted inhaler is designed..Firstly,the working principle of negative pressure triggering is pro-posed,the motion mechanism of the inhaler is designed,and the electric push rod,which is key component of the device,is calculated and selected.Secondly,the electric assisted inhaler is divided into the main structure and the drug loading structure,and the detailed struc-ture design is carried out.Thirdly,the control system of the device is built,and the booster circuit,buck circuit and battery capacity are designed and calculated in detail.Finally,a physical prototype of the device is developed,the convenience of operation of the structure is tested by fuzzy evaluation method,the accuracy of the drug delivery device is researched by image comparison method,and the injection time of the device is studied by camera tracking method.the results show that the convenience of operation of the device is excellent,and the accuracy of drug delivery reached 97.43％.The injection time is 0.85s,which can meet the needs of patients.
Electric assisted inhalerNegative pressure triggeringStructural designControl system design
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