×

MDI device with ultrasound sensor to detect aerosol dispensing

  • US 5,794,612 A
  • Filed: 04/02/1997
  • Issued: 08/18/1998
  • Est. Priority Date: 04/02/1997
  • Status: Expired due to Fees
First Claim
Patent Images

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.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×