US 5,702,362 AGranted

Nasal applicator

AssigneeBayer Aktiengesellschaft

InventorsHeiko Herold, Axel Wollenschlager, Alfred von Schuckmann

Life of this patent

Estimating the term…

Loading patent…

Abstract

Nasal applicators are an important aid for introducing powdery, pharmacologically active medicaments into the nasopharyngeal space of a patient. The present nasal applicator is based on a manually actuated compressed air source connected to an inflow channel (8) for generating a compressed air jet, a storage container (3) for the medicament and a metering device for making available a portioned-off quantity of the medicament which is caught by the compressed air jet and transported through an outflow channel (9) into the nose. The metering device consists of a metering drum (5) in which the storage container (3) for the medicament is formed by the interior of the metering drum (5). In addition, the inflow channel (8) is connected to one end of a metering channel (7) and the outflow channel (9) to the other end of the metering channel (7). The quantity of medicament made available in one portioning chamber (13) of the metering drum (5) protrudes into the metering channel (7) in such a manner that it is completely caught by the compressed air jet and transported into the nasal cavities.

Claims8

Dependent claims

A powdered medication inhaler comprising a manually actuated air source, an inflow channel (8) having two ends, an outflow channel (9) having two ends and a metering channel (7) having two ends, said manually actuated air source being connected to one end of said inflow channel (8), one end of said metering channel (7) being connected to the other end of said inflow channel (8) and the other end of metering channel (7) being connected to one end of said outflow channel (9), the other end of outflow channel (9) comprising an opening for discharging powder out of the inhaler;

a metering drum (5), the interior of which comprises a powder storage container (3) and having portioning chambers (13) for metering predetermined quantities of powder from said powder storage container (3) to said metering channel (7) whereby, in operation, the rotation of metering drum (5) causes portioning chamber (13) to remove a predetermined quantity of powder from powder storage container (3) and place it in metering channel (7), and air introduced into inflow channel (8) by said manually actuated air source flows from inflow channel (8) into metering channel (7), entrains said predetermined quantity of powder placed in metering channel (7) by said portioning chamber (13), and carries it through outflow channel (9) and out of the inhaler.

Dependencies are inferred from the claim text.

Facts

Application: 08/646,828Filed 21 May 1996
Priority: DE 195 18 810.126 May 1995
Granted: 30 Dec 1997
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

A61M 15/08
Inhalators: inhaling devices inserted into the nose
A61M 11/02
Sprayers or atomisers specially adapted for therapeutic purposes: operated by air or other gas pressure applied to the liquid or other product to…
A61M 15/0065
Inhalators: inhalators with dosage or measuring devices
A61M 31/00
Devices for introducing or retaining media

Family

No related US applications are recorded in the indexed filing history.

Timeline

Citations

Open elsewhere

Building an agent or pulling many patents? Use the API or MCP server instead of scraping pages. Get an API key