GB2536261A - An ultrasonic piezo nebuliser - Google Patents
An ultrasonic piezo nebuliser Download PDFInfo
- Publication number
- GB2536261A GB2536261A GB1504097.5A GB201504097A GB2536261A GB 2536261 A GB2536261 A GB 2536261A GB 201504097 A GB201504097 A GB 201504097A GB 2536261 A GB2536261 A GB 2536261A
- Authority
- GB
- United Kingdom
- Prior art keywords
- liquid
- reservoir
- cartridge
- piezoelectric actuator
- drive circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
- A61M11/005—Sprayers or atomisers specially adapted for therapeutic purposes using ultrasonics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
- B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Devices For Medical Bathing And Washing (AREA)
- Medicinal Preparation (AREA)
- Percussion Or Vibration Massage (AREA)
Abstract
A device 10 for nebulising a liquid comprises a reservoir of liquid 16 connected to an outlet 19, and a drive circuit 17 electrically connected to a piezoelectric actuator 18 and a battery 15. The drive circuit 17 actuates to vibrate the piezoelectric actuator 18 so that it nebulises the liquid in the reservoir, which passes through the outlet as an aerosol 28. The device is supplied as a disposable, modular assembly, where the reservoir of liquid and battery are located in a cartridge which is detachable from a base unit comprising the drive circuit. The piezoelectric element may be part of the base unit or provided in the reservoir.
Description
AN ULTRASONIC PIEZO NEBULISER
BACKGROUND OF THE INVENTION
The present invention relates to a device for nebulising a liquid.
Nebulised liquids are used for many purposes. One such use is for therapy, for example, by application to the skin or by inhalation. One example is the nebulisation of sodium chloride for inhalation to assist with the removal of mucus and debris from the lungs. Another example is nebulisation of hyaluronic acid for skin beauty purposes.
A device for nebulising liquids to form a mist is disclosed in EP 2626052. It consists of a gas cylinder attached at its top end via a manifold to a separate cartridge containing a liquid to which gas is supplied in order to generate a mist. A face mask is attached at an outlet port on the top of the cartridge by which a user inhales the vapour.
In order to gain wider acceptance, there is a need for a more disposable version of such nebulisers.
SUMMARY OF THE INVENTION
According to the present invention there is provided a device for nebulising a liquid, the device comprising a reservoir of liquid fluidly connected to an outlet, and comprising a drive circuit electrically connectable to a piezoelectric actuator and a battery; wherein the drive circuit is actuatable to vibrate the piezoelectric actuator so that it nebulises the liquid in the reservoir such that the liquid passes through the outlet as an aerosol, wherein the device is supplied as an assembly wherein the reservoir of liquid and battery are located in a cartridge detachable from a base unit comprising the drive circuit. The present invention thus provides a device with few moving parts which is easy to use.
Rather than a battery, mains power or some other power source could be used to power the device.
The aerosol preferably comprises droplets of a diameter of less than 10um.
The liquid inside the reservoir may be a saline solution of sodium chloride. In this way, the device is then useable to assist with the removal of mucus and debris from the lungs. The liquid may instead contain hyaluronic acid so that the device can be used for skin beauty purposes.
The piezoelectric actuator may be located in the reservoir to better nebulise the liquid contained in the reservoir.
The cartridge is preferably single-use and disposable.
The present invention thus provides a simple device for dispensing a liquid in aerosol form. -3 -
BRIEF DESCRIPTION OF THE FIGURES
The invention will now be described with reference to the accompanying Figures lA and 1B which each show a cross 5 section view of a nebuliser device.
DETAILED DESCRIPTION
With reference to Figure 1A, there is shown an nebuliser device 10 which comprises a cartridge 11 defining a housing 12 within which is located a reservoir 16 for liquid. The cartridge 11 comprises a piezoelectric actuator 18 located in the reservoir 16 for nebulising the liquid contained therein. The piezoelectric actuator 18 is powered by a battery 15 located in a cavity 13 of the cartridge 11.
The reservoir 16 comprises an outlet 19 for the liquid from the cartridge 11. A valve (not shown in the Figures) is located between the reservoir 16 and the outlet 19 to control the flow of liquid through the outlet 19.
Ordinarily, the valve is biased into a closed position to prevent the escape of liquid from the reservoir 16.
The nebuliser device 10 also comprises a base unit 14 25 which is separate from the cartridge 11. The base unit 14 comprises a drive circuit 17 which is powered by the battery 15 located in the cartridge 11.
In use of the device 10, a cartridge 11 containing liquid to be nebulised connects to the base unit 14. In this position, the drive circuit 17 electrically connects to the battery 15 and the piezoelectric actuator 18 located in the cartridge 11. The base unit 14 is then operated to actuate the piezoelectric actuator 18 which causes the liquid contained in the reservoir 16 to nebulise, pass through the valve, and out of the device 10 as an aerosol spray 28.
An alternative to the nebuliser device 10 of Figure lA is the nebuliser device 10' shown in Figure 1B. In this alternative device 10', the piezoelectric actuator 18 is located in the base unit 14, rather than in the reservoir 16 of the cartridge 11. As shown in Figure 1B, the piezoelectric actuator 18 is located on the base unit 14 such that it is next to the reservoir 16 when the cartridge of the cartridge 11 is connected to the base unit 14 to ensure efficient nebulisation of the liquid when the base unit is operated.
In either nebuliser device 10;10', the liquid contained within the reservoir 16 is any liquid which can be nebulised. Exemplary liquids which can be used include a saline solution of sodium chloride for when the device is used assisting with the removal of mucus and debris from the lungs, and hyaluronic acid fcr use in skin beauty purposes.
Claims (6)
- CLAIMS1. A device for nebulising a liquid, the device comprising a reservoir of liquid fluidly connected to an outlet, and 5 comprising a drive circuit electrically connectable to a piezoelectric actuator and a battery; wherein the drive circuit is actuatable to vibrate the piezoelectric actuator so that it nebulises the liquid in the reservoir such that the liquid passes through the outlet as an aerosol, wherein 10 the device is supplied as an assembly wherein the reservoir of liquid and battery are located in a cartridge detachable from a base unit comprising the drive circuit.
- 2. A device according to any preceding claim wherein the 15 aerosol comprises droplets of a diameter of less than 10pm.
- 3. A device according to any preceding claim wherein the liquid inside the reservoir is saline.
- 4. A device according to any preceding claim wherein the piezoelectric actuator is located in the reservoir.
- 5. A device according to any preceding claim wherein the cartridge is single-use and is disposable.
- 6. A device as substantially hereinbefore described with reference to the accompanying drawings.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1504097.5A GB2536261A (en) | 2015-03-11 | 2015-03-11 | An ultrasonic piezo nebuliser |
| PCT/EP2016/055317 WO2016142524A1 (en) | 2015-03-11 | 2016-03-11 | An ultrasonic piezo nebuliser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1504097.5A GB2536261A (en) | 2015-03-11 | 2015-03-11 | An ultrasonic piezo nebuliser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB201504097D0 GB201504097D0 (en) | 2015-04-22 |
| GB2536261A true GB2536261A (en) | 2016-09-14 |
Family
ID=52998730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1504097.5A Withdrawn GB2536261A (en) | 2015-03-11 | 2015-03-11 | An ultrasonic piezo nebuliser |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB2536261A (en) |
| WO (1) | WO2016142524A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4702418A (en) * | 1985-09-09 | 1987-10-27 | Piezo Electric Products, Inc. | Aerosol dispenser |
| JP2003290356A (en) * | 2002-04-03 | 2003-10-14 | Canon Inc | Liquid discharge cartridge and discharge device using the cartridge |
| WO2012062619A1 (en) * | 2010-11-08 | 2012-05-18 | British American Tobacco (Investments) Limited | Liquid droplet spray device |
| CN202289114U (en) * | 2011-10-19 | 2012-07-04 | 邓以翔 | Portable atomizer |
| US20140334804A1 (en) * | 2012-03-26 | 2014-11-13 | Enbright Co., Ltd. | Atomization control unit and a portable atomizing apparatus having the same |
| WO2014184044A1 (en) * | 2013-05-17 | 2014-11-20 | Koninklijke Philips N.V. | Multidose substance delivery module |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9604065D0 (en) * | 1996-02-27 | 1996-05-01 | Medix Ltd | A nebuliser |
| US7291126B2 (en) * | 2001-11-26 | 2007-11-06 | Nilimedix Ltd. | Drug delivery device and method |
| CN102458684B (en) * | 2009-05-11 | 2016-02-10 | 莫纳什大学 | For the microfluidic device of the atomization of liquid |
-
2015
- 2015-03-11 GB GB1504097.5A patent/GB2536261A/en not_active Withdrawn
-
2016
- 2016-03-11 WO PCT/EP2016/055317 patent/WO2016142524A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4702418A (en) * | 1985-09-09 | 1987-10-27 | Piezo Electric Products, Inc. | Aerosol dispenser |
| JP2003290356A (en) * | 2002-04-03 | 2003-10-14 | Canon Inc | Liquid discharge cartridge and discharge device using the cartridge |
| WO2012062619A1 (en) * | 2010-11-08 | 2012-05-18 | British American Tobacco (Investments) Limited | Liquid droplet spray device |
| CN202289114U (en) * | 2011-10-19 | 2012-07-04 | 邓以翔 | Portable atomizer |
| US20140334804A1 (en) * | 2012-03-26 | 2014-11-13 | Enbright Co., Ltd. | Atomization control unit and a portable atomizing apparatus having the same |
| WO2014184044A1 (en) * | 2013-05-17 | 2014-11-20 | Koninklijke Philips N.V. | Multidose substance delivery module |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201504097D0 (en) | 2015-04-22 |
| WO2016142524A1 (en) | 2016-09-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |