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CA2589389A1 - Improvements in and relating to drug delivery apparatus - Google Patents

Improvements in and relating to drug delivery apparatus Download PDF

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Publication number
CA2589389A1
CA2589389A1 CA002589389A CA2589389A CA2589389A1 CA 2589389 A1 CA2589389 A1 CA 2589389A1 CA 002589389 A CA002589389 A CA 002589389A CA 2589389 A CA2589389 A CA 2589389A CA 2589389 A1 CA2589389 A1 CA 2589389A1
Authority
CA
Canada
Prior art keywords
duration
patient
pulse
measuring
volume
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002589389A
Other languages
French (fr)
Other versions
CA2589389C (en
Inventor
Jonathan Stanley Harold Denyer
Anthony Dyche
Ivan Richard Prince
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Respironics UK Ltd
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB9823434A external-priority patent/GB2343122B/en
Application filed by Individual filed Critical Individual
Publication of CA2589389A1 publication Critical patent/CA2589389A1/en
Application granted granted Critical
Publication of CA2589389C publication Critical patent/CA2589389C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

A nebuliser comprises means for determining the duration of a pulse of atomisation during inspiration, the determination means including means for measuring the tidal volume of a patient, timing means for measuring the duration of inspiration, means for storing estimates of the volume of a patient's upper airway, and means for calculating the duration of the pulse. The duration of the pulse is calculated on the basis of the tidal volume measured by the tidal volume measuring means, the duration of inspiration measured by the timing means, and the stored estimated volume of patient's upper airway from the storage means.
CA002589389A 1998-10-26 1999-10-26 Improvements in and relating to drug delivery apparatus Expired - Lifetime CA2589389C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9823434A GB2343122B (en) 1998-10-26 1998-10-26 Improvements in and relating to nebulisers
GB9823434.7 1998-10-26
CA002347699A CA2347699C (en) 1998-10-26 1999-10-26 Improvements in and relating to drug delivery apparatus

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002347699A Division CA2347699C (en) 1998-10-26 1999-10-26 Improvements in and relating to drug delivery apparatus

Publications (2)

Publication Number Publication Date
CA2589389A1 true CA2589389A1 (en) 2000-05-04
CA2589389C CA2589389C (en) 2008-12-30

Family

ID=38337981

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002589389A Expired - Lifetime CA2589389C (en) 1998-10-26 1999-10-26 Improvements in and relating to drug delivery apparatus

Country Status (1)

Country Link
CA (1) CA2589389C (en)

Also Published As

Publication number Publication date
CA2589389C (en) 2008-12-30

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Effective date: 20191028