MDI device with ultrasound sensor to detect aerosol dispensing
First Claim
1. In a device for administering metered doses of propellant driven medicament for inhalation by a patient, said device having a mouthpiece through which the medicament passes, the improvement which comprises an indicating system having sensor means for detecting a selected range of ultrasound, controller means associated with said sensor means for signalling said detected ultrasound, said controller means having a timer;
- means for recording actuations and flow rates; and
display means for displaying said signals.
3 Assignments
0 Petitions
Accused Products
Abstract
An intrapulmonary delivery device is provided for delivery of a propellant driven medicament. The device has an indicating system with a sensor responsive to a selected range of ultrasound, a controller associated with the sensor for signalling the detected ultrasound, a differential pressure sensor and a display for the signals. The controller is associated with a microprocessor where the signal level the duration and time of actuation is stored in memory.
163 Citations
20 Claims
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1. In a device for administering metered doses of propellant driven medicament for inhalation by a patient, said device having a mouthpiece through which the medicament passes, the improvement which comprises an indicating system having sensor means for detecting a selected range of ultrasound, controller means associated with said sensor means for signalling said detected ultrasound, said controller means having a timer;
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means for recording actuations and flow rates; and display means for displaying said signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. In a device for administering metered doses of propellant driven medicament for inhalation by a patient, said device having a mouthpiece through which the medicament passes, the improvement which comprises an indicating system having sensor means for detecting a selected range of ultrasound, controller means associated with said sensor means for signalling said detected ultrasound, said controller means having a timer;
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a differential pressure sensor associated with said controller for measuring flow rate of propellant; means for recording actuations and flow rates; and display means for displaying said signals. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification