SELF-LEARNING DRUG DELIVERY SYSTEM

• US 20100087795A1
• Filed: 12/19/2007
• Published: 04/08/2010
• Est. Priority Date: 12/22/2006
• Status: Abandoned Application

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Van Bruggen, Michel Paul Barbara, Krijnsen, Hendrika Cecilia, Iordanov, Ventzeslav Petrov, Janner, Anna-Maria
• Application Number:
  US12/519,803
• Publication Number:
  US 20100087795A1
• Time in Patent Office: Days
• US Class Current: 604/500
• CPC Class Codes: A61M 2005/1405 Patient controlled analgesia [PCA]
• CPC Class Codes: A61M 2005/14208 with a programmable infusion control system, characterised by the infusion program
• CPC Class Codes: A61M 2205/52 with memories providing a history of measured variating parameters of apparatus or patient
• CPC Class Codes: A61M 5/1723 using feedback of body parameters, e.g. blood-sugar, pressure measurement of body parameters A61B5/00
• CPC Class Codes: A61P 25/04 Centrally acting analgesics, e.g. opioids

Abstract

Self-learning process for automatically adjusting a dosage of a substance administered to a person by a drug delivery device, a drug delivery device, wherein a dosage of a substance is adjusted by such a self-learning process and a drug delivery system comprising such a drug delivery device. Pain is experienced differently at certain times of day due to the origin causing the symptoms. Therefore, the medication providing pain relief should also be adjusted accordingly. The invention is to anticipate the pain experience and to deliver pain relief medication in such a way that Quality of Life is improved by appropriate timing of the right amount of medication and by appropriate timing of turning off the medication to reduce side effects.

Claims

1. Self-learning process for automatically adjusting a dosage of a substance administered to a subject by a drug delivery device, the process comprising the following steps:

administering the substance in a dosage in accordance with at least one recurring sequence,

adjusting the at least one recurring sequence in response to a feedback.

2. Process according to claim 1, wherein the recurring sequence is adjusted with regard to the dosage of the substance in the successive cycles of the sequence, in accordance with the feedback.

3. Process according to claim 1, wherein a number of preceding cycles of the recurring sequence is considered for the adjustment of the recurring sequence.

4. Process according to claim 1, wherein the recurring sequence is adjusted in consideration of a time delay between the administration of the substance and an occurrence of an effect of the substance on a blood drug level of the subject.

5. Process according to claim 4, wherein the time delay is adapted in dependence on a course of the recurring sequence.

6. Process according to claim 1, wherein the substance is administered in a number of recurring sequences, comprising one or more of circadian, ultradian, and infradian sequences.

8. Process according to claim 1, wherein the feedback is a demand on the part of the subject to increase, decrease, or maintain the dosage of the substance.

9. Process according to claim 1, wherein the feedback is an evaluation of the effect of the dosage of the substance.

10. Process according to claim 1, wherein the feedback relates to a level of pain sensation relief and/or to side effects experienced by the person.

11. Process according to claim 1, wherein an initial sequence for the dosage is preset according to a kind of disease to be treated and/or to the kind of substance to be administered.

12. Process according to claim 11, wherein the initial sequence is further adapted to one or more of:

(1) parameters related to the subject, (2) case-specific information on the subject, and (3) the subject'"'"'s disease.

14. Process according to claim 1, wherein the dosage of the substance is reduced so as to reduce a blood drug level upon an absence of the feedback.

15. Process according to claim 1, wherein a peak blood drug level over the recurring sequence is aligned with a maximum demand of the subject in accordance with the feedback over the recurring sequence.

7. (canceled)

13. (canceled)

16. (canceled)

17. Drug delivery device, comprising:

a dispenser for administering a substance,

a controller for controlling a dosage of the substance in accordance with a recurring sequence,

wherein the recurring sequence is adjustable by a self-learning process comprising the administration of the substance in a dosage in accordance with at least one recurring sequence and the adjustment of the at least one recurring sequence upon a feedback.

18. Drug delivery device according to claim 17, wherein the adjustment of the recurring sequence is done in dependence on a number of preceding cycles of the recurring sequence.

19. Drug delivery device according to claim 17, wherein the administration of the substance is done in a number of recurring sequences comprising one or more of circadian, ultradian, and infradian sequences.

20. Drug delivery system, comprising a drug delivery device according to claim 17, further comprising an input unit that is adapted to receive the feedback of the subject and to transfer an input to the drug delivery device.

21. Drug delivery system according to claim 20, wherein the input unit is a handheld device.

22. Drug delivery system according to claim 20, further comprising a microcomputer for executing calculations with regard to the adjustment of the recurring sequence.

23. Drug delivery system according to claim 20, further comprising a storage device on which the feedback and/or the adjustment of the recurring sequence can be stored.