# US 2013/0152924 A1 · Nozzle and inhaler and method for producing a nozzle

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- Number: US 2013/0152924 A1
- Document ID: US20130152924A1
- Status: Published application
- Kind: A1
- Application number: 13/770,035
- Filed: 2013-02-19
- Published: 2013-06-20
- Earliest claimed: 2008-01-16
- Assignees: Boehringer Ingelheim Pharma GmbH & Co. KG
- Inventors: Stephen T. DUNNE
- Web page: https://patentgrep.com/patent/US20130152924A1

## CPC

- A61M 11/00: Sprayers or atomisers specially adapted for therapeutic purposes (in general B05B; {aerosol containers B65D83/14})
- A61M 11/001: {Particle size control}
- A61M 11/007: {Syringe-type or piston-type sprayers or atomisers}
- A61M 11/02: operated by air {or other gas} pressure applied to the liquid {or other product} to be sprayed or atomised {(sprayers for horticulture A01G, A01H; killing insects A01M; air humidifying by nozzles F24F6/14, F24F6/18; cooling by spraying F28B, F28C)}
- A61M 11/04: operated by the vapour pressure of the liquid to be sprayed or atomised {(air-humidification, e.g. "room humidifiers" F24F6/00)}
- A61M 15/0021: {Mouthpieces therefor}
- A61M 15/0045: {using multiple prepacked dosages on a same carrier, e.g. blisters}
- A61M 15/0065: {Inhalators with dosage or measuring devices (A61M15/0028 takes precedence; dosage devices incorporated in aerosol cans B65D83/52)}
- A61M 15/009: {using medicine packages with incorporated spraying means, e.g. aerosol cans (pocket atomiser of the injector type A61M11/08)}
- B05B 1/26: with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
- B05B 11/1091: {being first hold in a loaded state by locking means or the like, then released (B05B11/1092 takes precedence)}
- A61M 2202/0468: non-physiological
- B05B 11/1001: {Piston pumps (B05B11/1087, B05B11/1088, B05B11/109 take precedence)}
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}
- B05B: SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES (spray-mixers with nozzles B01F25/72; processes for applying liquids or other fluent materials to surfaces by spraying B05D)

## Abstract

A nozzle, an inhaler with a nozzle and a method for producing a nozzle are proposed. The nozzle comprises two holes formed in a flat plate. Then, the plate is deformed such that the axes of the holes intersect so that jets of fluids generated by the holes impinge with each other.

## Claims

### Claim 1

In a nozzle (12) for generating at least two impinging jets (20), the nozzle (12) comprising at least two holes (21) for dispensing a fluid, in particular an inhalation formulation (2), in order to generate the jets (20) of fluid, the improvement which is
characterized in
that the nozzle (12) comprises a plate (22) with the holes (21), the plate (22) being deformed or the holes (21) being inclined in the flat plate (22) such that the axes (23) of the holes (21) intersect each other at an outlet side (24) of the nozzle (12).

### Claim 2 (depends on 1)

The nozzle according to claim 1, characterized in that the plate (22) is made of metal, in particular stainless steel, ceramic, silicon or plastic.

### Claim 3 (depends on 1)

The nozzle according to claim 1, characterized in that the plate (22) is deformed by deep drawing or bending or folding.

### Claim 4 (depends on 1)

The nozzle according to claim 1, characterized in that the plate (22) is thin, in particular has a thickness (31) of less than 200 preferably of about 10 to 100 μm.

### Claim 5 (depends on 1)

The nozzle according to claim 1, characterized in that the plate (22) is initially flat.

### Claim 6 (depends on 1)

The nozzle according to claim 1, characterized in that the plate (22) is deformed after forming the holes (21).

### Claim 7 (depends on 1)

The nozzle according to claim 1, characterized in that the holes (21) are formed by drilling, in particular laser drilling, or punching the plate (22).

### Claim 8 (depends on 1)

The nozzle according to claim 1, characterized in that the plate (22) forms a depression (32), the holes (21) being located on opposite sides of the depression (32).

### Claim 9 (depends on 1)

The nozzle according to claim 1, characterized in that the distance (30) between the holes (21) is about between 30 and 300 μm, preferably about between 50 and 200 μm.

### Claim 10 (depends on 1)

The nozzle according to claim 1, characterized in that the holes (21) have respectively a hydraulic diameter of 2 to 50 μm, in particular of 3 to 30 μm, preferably between 5 and 15 μm.

### Claim 11 (depends on 1)

In an inhaler (1) for dispensing of an inhalation formulation (2) as an aerosol (14), which comprises:
a conveying means for conveying and/or nebulising the inhalation formulation (2), in particular for generating the aerosol (14), and
a nozzle (12),
the improvement which is
characterized in
that the nozzle (12) is as recited in claim 1.