# US 5,429,302 A · Nebulizing element and device

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 5,429,302 A
- Document ID: US5429302A
- Status: Granted
- Kind: A
- Application number: 08/063,576
- Filed: 1993-05-19
- Granted: 1995-07-04
- Earliest claimed: 1993-05-19
- Assignees: Fisons Limited
- Inventors: David D. Abbott
- Web page: https://patentgrep.com/patent/US5429302A

## CPC

- B05B 17/0615: {spray being produced at the free surface of the liquid or other fluent material in a container and subjected to the vibrations}
- A61M 15/0085: {using ultrasonics (spraying or atomising liquids using ultrasonic vibrations in general B05B17/06)}
- 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)
- 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)}

## Abstract

There is provided a nebulizing element suitable for nebulizing a liquid, comprising: a) oscillator means; and b) a cover sheet; the cover sheet being disposed between the oscillator means and the liquid to be nebulized in use; and having a metallic chemically inert layer which contacts the liquid to be nebulized in use, and a metallic energy transmission layer bonded thereto; characterized in that the metallic chemically inert layer and the metallic energy transmission layer are bonded to one another by a metallic bond. Nebulizer devices comprising such elements are also provided.

## Claims

### Claim 1

A nebulizing element suitable for nebulizing a liquid, comprising:
a) oscillator means; and
b) a cover sheet;
the cover sheet being disposed between the oscillator means and the liquid to be nebulized in use; and having a metallic chemically inert layer which contacts the liquid to be nebulized in use, and a metallic energy transmission layer bonded thereto; characterized in that the metallic chemically inert layer and the metallic energy transmission layer are bonded to one another by a metallic bond.

### Claim 2 (depends on 1)

A nebulizing element as claimed in claim 1, wherein the metallic bond is formed by roll bonding.

### Claim 3 (depends on 1)

A nebulizing clement as claimed in claim 1, wherein the metallic inert layer is of steel, gold, titanium or platinum.

### Claim 4 (depends on 1)

A nebulizing element as claimed in claim 1, wherein the metallic energy transmission layer is of aluminium, silver, magnesium or copper.

### Claim 5 (depends on 1)

A nebulizing element as claimed in claim 1, wherein the thickness of the metallic chemically inert layer is in the range 2.5.times.10.sup.-5 -1.0.times.10.sup.31 4 m (1/1000-4/1000").

### Claim 6 (depends on 1)

A nebulizing element as claimed in claim 1, wherein the thickness of the metallic energy transmission layer is in the range 1.5.times.10.sup.-4 -6.1.times.10.sup.-4 m (6/1000-24/1000").

### Claim 7 (depends on 1)

A nebulizer device including a nebulizing element as claimed in claim 1.

### Claim 8 (depends on 7)

A nebulizer device as claimed in claim 7 including a mouthpiece, which is a medicament inhalation device.

### Claim 9 (depends on 1)

A cover sheet adapted for use in a nebulizing element as defined in claim 1.