Dosage counter for metered dose inhaler (MDI) systems using a miniature pressure sensor

Dosage counter for metered dose inhaler (MDI) systems using a miniature pressure sensor

A method and apparatus for directly counting the number of doses expended from a Metered Dose Inhaler (MDI) medicinal delivery system. A miniature pressure sensor and microprocessor is used to detect the pressure pulse in the transfer channel of the mouthpiece of the MDI through which the inhaler do...

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Hauptverfasser: SALERNO, ALLEN H, ISENSEE, ROBERT K, FERRARA, MICHAEL L, ROSSITER, DANIEL J, ROCCI, JR., MARIO L
Format: Patent
Sprache:eng
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DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
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creator SALERNO
ALLEN H
ISENSEE
ROBERT K
FERRARA
MICHAEL L
ROSSITER
DANIEL J
ROCCI, JR.
MARIO L
description A method and apparatus for directly counting the number of doses expended from a Metered Dose Inhaler (MDI) medicinal delivery system. A miniature pressure sensor and microprocessor is used to detect the pressure pulse in the transfer channel of the mouthpiece of the MDI through which the inhaler dose (the prescribed mixture of aerosol propellant and medicinal drug) is released. The microprocessor processes data reflecting the dynamics of the pressure pulse and counts the number of doses administered. The microprocessor displays the counted doses (or doses remaining) on a miniature digital display. Additional information also may be provided to a user from the display or via an audible signal.
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subjects DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
title Dosage counter for metered dose inhaler (MDI) systems using a miniature pressure sensor
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