| Title of Invention | AN INHALER FOR PRODUCING AN INHALABLE AEROSOL OF A POWDERED MEDICAMENT |
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| Abstract | An inhaler for producing an inhalable aerosol of a similar powdered medicament includes an aerosolising device in the form of a cylindrical vortex chamber 1. The vortex chamber 1 has a tangential inlet port 3 and an axial exit port 2. The ratio of the diameter of the vortex chamber 1 to the diameter of the exit port 2 is between 4 and 12. The length of the exit port 2 is less than its diameter. The cross-section of the inlet port 3 is rectangular and is defined at the bottom and at the radially outermost edge by the walls of the vortex chamber 1. The cross-sectional area of the inlet conduit 7, which supplies the medicament in a gas flow to the inlet port 3, decreases in the direction towards the vortex chamber 1. The inlet conduit 7 may be curved. The inhaler is capable of repeat ably producing an aerosol of a medicament with a high proportion of particles in the range 1 to 3 microns, while using a 20 relatively small amount of energy. (FIG. 1) |
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1352-kolnp-2003-granted-abstract.pdf
1352-kolnp-2003-granted-claims.pdf
1352-kolnp-2003-granted-correspondence.pdf
1352-kolnp-2003-granted-description (complete).pdf
1352-kolnp-2003-granted-drawings.pdf
1352-kolnp-2003-granted-examination report.pdf
1352-kolnp-2003-granted-form 1.pdf
1352-kolnp-2003-granted-form 18.pdf
1352-kolnp-2003-granted-form 2.pdf
1352-kolnp-2003-granted-form 26.pdf
1352-kolnp-2003-granted-form 3.pdf
1352-kolnp-2003-granted-form 5.pdf
1352-kolnp-2003-granted-letter patent.pdf
1352-kolnp-2003-granted-reply to examination report.pdf
1352-kolnp-2003-granted-specification.pdf
| Patent Number | 220475 | ||||||||||||||||||||||||
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| Indian Patent Application Number | 01352/KOLNP/2003 | ||||||||||||||||||||||||
| PG Journal Number | 22/2008 | ||||||||||||||||||||||||
| Publication Date | 30-May-2008 | ||||||||||||||||||||||||
| Grant Date | 28-May-2008 | ||||||||||||||||||||||||
| Date of Filing | 21-Oct-2003 | ||||||||||||||||||||||||
| Name of Patentee | VECTURA DELIVERY DEVICES LIMITED | ||||||||||||||||||||||||
| Applicant Address | UNIVERSITY OF BATH CAMPUS, CLAVERTON DOWN, BATH BA2 7AY | ||||||||||||||||||||||||
Inventors:
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| PCT International Classification Number | A61M 15/00 | ||||||||||||||||||||||||
| PCT International Application Number | PCT/EP02/05186 | ||||||||||||||||||||||||
| PCT International Filing date | 2002-05-10 | ||||||||||||||||||||||||
PCT Conventions:
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