OPERATING METHOD FOR AN AEROSOL DELIVERY DEVICE AND AEROSOL DELIVERY DEVICE

• US 20130112197A1
• Filed: 04/26/2011
• Published: 05/09/2013
• Est. Priority Date: 04/26/2010
• Status: Abandoned Application

• Current Assignee: PARI Pharma GmbH (PARI MEDICAL HOLDING GmbH)
• Original Assignee: PARI Pharma GmbH (PARI MEDICAL HOLDING GmbH)
• Inventors: Schuschnig, Uwe, Seifert, Ren, Krner, Axel, Klopfer, Elisabeth
• Application Number:
  US13/643,585
• Publication Number:
  US 20130112197A1
• Time in Patent Office: Days
• US Class Current: 128/203.12
• CPC Class Codes: A61M 11/005 using ultrasonics spraying or atomising liquids using ultrasonic vibrations in general B05B17/06
• CPC Class Codes: A61M 15/0085 using ultrasonics spraying or atomising liquids using ultrasonic vibrations in general B05B17/06
• CPC Class Codes: A61M 15/08 Inhaling devices inserted into the nose
• CPC Class Codes: A61M 16/0006 with means for creating vibrations in patients' airways
• CPC Class Codes: A61M 16/0063 Compressors
• CPC Class Codes: A61M 16/14 by mixing different fluids, one of them being in a liquid phase
• CPC Class Codes: A61M 2209/02 Equipment for testing the apparatus
• CPC Class Codes: A61M 2210/0681 Sinus (maxillaris)

Abstract

The invention relates to a method for operating an aerosol delivery device (10), comprising the steps of generating a predetermined amount of an aerosol in the device (10) and inducing a transport flow in the device (10) for transporting at least a portion of the predetermined amount of the aerosol outside the device (10). During the aerosol generating step, the transport flow is first induced, then stopped after a predetermined first period of time and then induced again after a predetermined second period of time. Further, the invention relates to an aerosol delivery device (10) comprising an aerosol generator (3) for generating an aerosol in the device (10), a gas conveying element (1} for inducing a transport flow in the device (10) for transporting at least a portion of the generated aerosol outside the device (10), and a control configured, during the aerosol generating step, to first activate the gas conveying element (1), then deactivate the gas conveying element (1) after a predetermined first period of time and then activate the gas conveying element (1) again after a predetermined second period of time, so that the transport flow is first induced, then stopped after the first period of time and then induced again after the second period of time.

Claims

1. A method for operating an aerosol delivery device, comprising the steps of:

generating a predetermined amount of an aerosol in the device, and

inducing a transport flow in the device for transporting at least a portion of the predetermined amount of the aerosol outside the device,

wherein, during the aerosol generating step, the transport flow is first induced, then stopped after a predetermined first period of time and then induced again after a predetermined second period of time, and

the aerosol delivery device is not a respirator.

2. The method according to claim 1, wherein the total volume of transported gas/aerosol bolus during one period step is less than 50 ml, preferably between 5 ml and 20 ml.

3. The method according to claim 1, further comprising a step of pulsating the aerosol after the aerosol generating step.

4. The method according to claim 3, wherein the transport flow is stopped during the step of pulsating the aerosol.

5. The method according to claim 3, wherein the duration of the step of pulsating the aerosol is in the range of 0.1-15.0 s, preferably in the range of 0.5-1.0 s.

6. The method according to claim 3, wherein the pulsation of the aerosol has a frequency in the range of 1-200 Hz.

7. The method according to claim 1, wherein the aerosol is a pharmaceutical aerosol for the delivery of an active compound.

8. The method according to claim 1, wherein the aerosol delivery device is a vibrating membrane nebuliser.

9. The method according to claim 1, further comprising a step of low-frequency pulsation with a frequency in the range of less than 60 Hz, preferably between 5 to 40 Hz, most preferred between 10 and 20 Hz.

15. The subject-matter according to claim 1, wherein, preferably at least three times, the transport flow is periodically induced and stopped during the aerosol generating step.

16. The subject-matter according to claim 3, wherein the pulsation of the aerosol has a used maximal pulsation flow greater than 8 L/min, preferably greater than 12 L/min and more preferably greater than 14 L/min.

17. The subject-matter according to claim 15, wherein the frequency of periodically inducing and stopping the transport flow is less than 10 Hz, preferably between 1 and 10 Hz.

18. The subject-matter according to claim 1, wherein the first period of time and/or the second period of time is in the range of 50-300 ms.

10. An aerosol delivery device comprising:

an aerosol generator for generating an aerosol in the device,

a gas conveying element for inducing a transport flow in the device for transporting at least a portion of the generated aerosol outside the device, and

a control configured, during the aerosol generating step, to first activate the gas conveying element, then deactivate the gas conveying element after a predetermined first period of time and then activate the gas conveying element again after a predetermined second period of time, so that the transport flow is first induced, then stopped after the first period of time and then induced again after the second period of time, wherein

the aerosol delivery device is not a respirator.

11. The aerosol delivery device according to claim 10, further comprising a pulsator for pulsating the aerosol, wherein the control is configured to activate the pulsator after deactivating the aerosol generator.

12. The aerosol delivery device according to claim 11, wherein the control is configured to deactivate the gas conveying element during the pulsation of the aerosol.

13. The aerosol delivery device according to claim 11, further comprising a switch unit for switching the control between an operating mode which includes activating the pulsator after deactivating the aerosol generator and an operating mode in which the pulsator is not activated.

14. The aerosol delivery device according to claim 10, wherein the aerosol generator is a vibrating membrane nebuliser.

19. (canceled)