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MD Turbo is intended to assist with the delivery of aerosolized medications when used in conjunction with commercialized pressurized metered dose inhalers (pMDI). MD Turbo is also intended for use by patients to count the number of doses remaining in their pMDI.

The Respirics Inc. MD Turbo™ is a prescription accessory device designed for use with specific pressurized metered dose inhalers (pMDI). The MD Turbo™ is comprised of a triggering mechanism and dose counter. In addition to its primary function of assisting with the delivery of medications from pMDIs, the secondary function monitors the quantity of medication remaining in the pMDI canister. MD Turbo™ is designed to work with a number of different style pMDIs, without modification. The entire pMDI, i.e., canister and plastic actuator, is inserted into the MD Turbo™. If necessary, the pMDI can be removed for cleaning or if the MD Turbo™ becomes inoperable. Once the pMDI has been placed into the MD Turbo™, the device is prepared for use by the depression of a loading lever. After the loading lever is depressed, the pMDI can be triggered to deliver the prescribed medication through either breath-actuation or manual actuation. For breathactuation, the patient inhales through the pMDI actuator mouthpiece that has been inserted into the MD Turbo™. When the inspiratory flow of the patient reaches the target inspiratory flow rate, the device mechanism is triggered to actuate the pMDI canister and the medication is delivered to the patient. Alternatively, the patient can trigger MD Turbo™ to actuate the pMDI canister by depressing a recessed button on the back of the device. The MD Turbo™ also functions as a dose counter. Once a pMDI has been inserted into MD Turbo™, the patient selects the number of doses contained in the pMDI canister. The number is displayed on an LCD on the side of the device. Every time the MD Turbo™ is activated, the counter decrements appropriately. When the counter reaches 20 or fewer doses, the number display will start to flash.