SUPPLEMENTAL DEVICE FOR USE WITH AN INJECTION DEVICE, A METHOD OF OPERATION THEREOF, AND A COMPUTER PROGRAM FOR CONTROLLING A SUPPLEMENTAL DEVICE TO PERFORM THE METHOD
A supplemental device for use with an injection device, the supplemental device comprising: plurality of light sources each being configured to illuminate a surface portion of an injection device, in use, with light of a different wavelength at least one sensor for generating sensor outputs indicative of the respective intensities of light of different wavelengths reflected from the surface portion and a processor for: controlling the plurality of light sources to illuminate the surface portion with light of first to third different wavelengths obtaining first to third values for sensor outputs corresponding to the first to third different wavelengths respectively performing one or more calculations using at least the first and second values to provide one or more further values and using the third value and the or each further value, but not the first and second values, to determine a property of the injection device.本發明係關於一種與一注射裝置一起使用之輔助裝置,此輔助裝置包含:複數個光源,每個被設計成用於在使用中,利用不同波長的光照明一注射裝置之一表面部分;至少一感測器,用於產生感測器輸出,以代表從表面部分反射之不同波長的光之各個強度;以及一處理器,用於:控制複數個光源,用於利用第一至第三不同波長的光照明此表面部分;獲得分別對應於第一至第三不同波長之感測器輸出的第一至第三數值;藉由使用至少第一與第二數值執行一個或多個計算,以提供一個或多個更進一步的數值;以及使用第三數值與該或各個該等進一步的數值,而非第一與第二數值,用以測定一注射裝置之特性。10‧‧‧注射裝置17‧‧‧數字套筒26‧‧‧數字28‧‧‧劑量視窗/顯示窗34‧‧‧輔助裝置35‧‧‧系統匯流排36‧‧‧殼體38‧‧‧顯示單元40‧‧‧處理器42‧‧‧程式記憶體43‧‧‧補充記憶體44‧‧‧主記憶體46‧‧‧主要光學感測器單元47‧‧‧照明單元48‧‧‧輸入裝置50‧‧‧電源供應部56‧‧‧光學感測器單元57‧‧‧表面部分
