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Controlling drug delivery apparatus

  • US 7,451,760 B2
  • Filed: 08/15/2001
  • Issued: 11/18/2008
  • Est. Priority Date: 02/11/2000
  • Status: Expired due to Term
First Claim
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1. A system for delivery of a drug to a patient comprising:

  • a drug delivery device arranged to deliver a dose of the drug to the patient over a plurality of breaths, the device including a breath analyser which(i) analyses a patient'"'"'s breathing during drug delivery, wherein the analysis by the breath analyzer includes quantitatively measuring at least one parameter of the patient'"'"'s breathing; and

    (ii) generates breath information on a patient'"'"'s breathing during drug delivery wherein the breath information includes the at least one quantitative measurement of the patient'"'"'s breathing;

    a data carrier onto which the drug delivery device is arranged to place the breath information for a number of drug deliveries;

    a data analyser arranged to analyze the breath information from the data carrier, and to derive characteristics of the patient'"'"'s breathing; and

    a trend generator of analyzing the breath information and the characteristics of the patient'"'"'s breathing over a number of treatments, wherein the breath information includes a total treatment time, a total inhalation time and a total exhalation time, and wherein the data analyser calculates a total no flow time value by subtracting the total inhalation time and the total exhalation time from the total treatment time.

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