Nebulizer and nebulizer kit

Patent metadata

Field	Value
Publication number	US-9498789-B2
Application number	US-201414289300-A
Country	US
Kind code	B2
Filing date	May 28, 2014
Priority date	Dec 27, 2011
Publication date	Nov 22, 2016
Grant date	Nov 22, 2016

Abstract

A nebulizer kit includes a case body having a compressed air introduction tube in an upper end portion of which is a nozzle hole that expels compressed air, a suction channel formation member forming a suction channel for sucking liquid toward the upper end portion and forming an atomizing area in an exit region of the hole, and a flow channel formation member having an aerosol discharge port. The suction channel has first and second suction channels respectively extending upward along an outer circumferential surface of the tube and from the suction channel toward the hole at a leading end area of the tube and has a liquid suction port that expels the liquid. A particle segregating portion having a blade portion, whose orientation to the atomizing area is adjustable, is between the atomizing area and the port. The suction channel formation member is fixed to the case body.

First claim

The invention claimed is:

1. A nebulizer kit comprising:
a case body, having an open upper end, and including a compressed air introduction tube, extending upward, into which compressed air is introduced and in an upper end portion of which a nozzle hole that expels the compressed air is formed, and further including a liquid reservoir portion provided surrounding an outer circumferential surface of the compressed air introduction tube at a bottom area of the compressed air introduction tube;
a suction channel formation member that forms a suction channel that sucks a liquid held in the liquid reservoir portion toward the upper end portion of the compressed air introduction tube and forms an atomizing area in an exit region of the nozzle hole provided in the compressed air introduction tube by covering the outer circumferential surface of the compressed air introduction tube to supply the liquid directly into the flow of compressed air; and
a flow channel formation member, including an aerosol discharge port that discharges an aerosol formed at the atomizing area to the exterior, that is attached to the case body so as to cover an upper opening of the case body,
wherein the suction channel includes:
a first suction channel that extends upward along the outer circumferential surface of the compressed air introduction tube; and
a second suction channel that extends from the first suction channel toward the nozzle hole at a leading end area of the compressed air introduction tube and has a liquid suction port that expels the liquid that has been sucked up,
a particle segregating portion that has a blade portion and that segregates particles of the aerosol using the blade portion and discharges the aerosol of a desired particle size to the exterior is provided between the atomizing area and the aerosol discharge port;
the suction channel formation member is fixed to the case body;
an orientation or a position of the blade portion relative to the atomizing area can be adjusted; and
the position of the blade portion relative to the atomizing area is adjusted by moving the blade portion so as to increase or decrease a gap between the blade portion and the atomizing area.

2. The nebulizer kit according to claim 1 ,
wherein the orientation of the blade portion relative to the atomizing area is adjusted by rotating the blade portion.

3. The nebulizer kit according to claim 2 ,
wherein the blade portion is configured to occupy a space between the atomizing area and the aerosol discharge port in a fan shape.

4. The nebulizer kit according to claim 2 ,
wherein the blade portion is configured to occupy a space between the atomizing area and the aerosol discharge port in a linear shape.

5. The nebulizer kit according to claim 1 ,
wherein the blade portion is configured to be removable from the flow channel formation member.

6. The nebulizer kit according to claim 1 ,
wherein the blade portion is provided toward an end of the particle segregating portion in the lengthwise direction of the particle segregating portion.

7. The nebulizer kit according to claim 1 ,
wherein the particle segregating portion is configured to be removable from the flow channel formation member.

8. The nebulizer kit according to claim 1 ,
wherein the flow channel formation member includes an upper cylinder portion having the aerosol discharge port; and
the blade portion and the particle segregating portion are assembled with the upper cylinder portion.

9. The nebulizer kit according to claim 1 ,
wherein a channel through which the aerosol flows between the atomizing area and the aerosol discharge port is configured to have a smaller inner diameter in an area near the aerosol discharge port than in an area near the atomizing area.

10. A nebulizer comprising:
a main body including a compressor that discharges compressed air;
a compressed air tube portion through which the compressed air discharged by the compressor is introduced; and
the nebulizer kit according to claim 1 , to which one end of the compressed air tube portion is attached and that produces an aerosol.

Assignees

• Omron Healthcare Co Ltd

Inventors

• Esaki Masayuki
• Sasai Yoichi

Classifications

• B05B7/2429 Primary

  the carried liquid and the main stream of atomising fluid being brought together after discharge (B05B7/2435 takes precedence) · CPC title

• A61M2206/14

  Static flow deviators in tubes disturbing laminar flow in tubes, e.g. archimedes screws · CPC title

• A61M2209/10

  Equipment for cleaning · CPC title

• B05B7/2491 Primary

  characterised by the means for producing or supplying the atomising fluid, e.g. air hoses, air pumps, gas containers, compressors, fans, ventilators, their drives · CPC title

• A61M11/06

  of the injector type · CPC title