Dispenser for medicament

Details Dispenser for medicament Dispenser for medicament

2006-05-23

2006-05-23

Mitchell, Teena (Department: 3743)

Surgery

Liquid medicament atomizer or sprayer

Pre-pressurized container holding medicament

C128S205230

Reexamination Certificate

active

07047964

ABSTRACT:
A dispenser1has a source of medicament2with a can3and a metered dose valve4. The outlet stem5of the valve is fitted to a junction block6in a body7of the dispenser to which a breath actuated dose release mechanism8is connected for release of the medicament through a nozzle9. The can has an acoustic transducer11attached to its side wall12, in intimate acoustic contact. An electronic package14, comprising a detection circuit and a driver for a LCD display15are also mounted on the can wall, the transducer being connected to the circuit. The detection circuit is arranged to decrement a count shown on the LCD by one for every detection of noise of dispensing/metering of a dose from the can. The detection circuit is programmed to compare the spectrum of the noise with a known dose-dispensing spectrum and to decrement the counter according to the comparison.

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