CN107497019B - Medical atomizer with improved structure - Google Patents
Medical atomizer with improved structure Download PDFInfo
- Publication number
- CN107497019B CN107497019B CN201710603239.1A CN201710603239A CN107497019B CN 107497019 B CN107497019 B CN 107497019B CN 201710603239 A CN201710603239 A CN 201710603239A CN 107497019 B CN107497019 B CN 107497019B
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- Prior art keywords
- nozzle
- housing
- aerosol
- improved structure
- nozzle hole
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- 239000000443 aerosol Substances 0.000 claims abstract description 39
- 239000012530 fluid Substances 0.000 claims abstract description 12
- 239000006200 vaporizer Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 description 21
- 230000000694 effects Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000006199 nebulizer Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
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
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- 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)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Nozzles (AREA)
Abstract
A medical atomizer with improved structure comprises a first shell and a second shell, wherein the first shell is integrally formed with a first nozzle, the first nozzle is provided with a first nozzle hole, the second shell is integrally formed with a second nozzle and a conical cover body, the second nozzle is provided with a second nozzle hole, the inner side of the conical cover body is provided with a protruding part and an annular inclined surface, and the protruding part forms an aerosol impact surface; the second shell is separably combined with the first shell, the second nozzle is positioned on the outer side of the first nozzle, a fluid channel is formed between the first nozzle and the second nozzle, the first nozzle hole is positioned on the inner side of the second nozzle hole, and the aerosol impact surface is positioned above the second nozzle hole.
Description
The technical field is as follows:
the present invention relates to a medical nebulizer, and more particularly, to a medical nebulizer capable of reducing a residual amount of a drug, which has an improved structure in which a structure is simplified into two integrally formed housings to ensure assembly accuracy and an atomization effect, and which has a conical cover body to collect and cyclically atomize relatively large aerosol particles.
Background art:
in the prior art (one) as disclosed in US4512341 (the patent family of which has british publication No. GB 2132508B), an atomizer is primarily disclosed, in which a nozzle is fed through a narrow space intermediate a flat bottom of a liquid reservoir and a flange (flight) secured to the bottom of the nozzle, wherein the space is sufficiently narrow to spray liquid toward the nozzle by capillary action, after the liquid passes at high velocity through a circular diffuser (round diffuser) and inverted cone (inverted cone) it impacts a baffle (baffle) to produce an aerosol, by which larger droplets coalesce and fall back into the reservoir. The circular diffuser may cause larger droplets to be sprayed onto the wall of the main body (main body) of the atomizer, but partially remain on the wall. Furthermore, according to the description of the prior art (one), the flange at the bottom of the nozzle extends almost to the wall surrounding the reservoir, and when the level of the liquid approaches the flange, larger droplets will fall back and remain on the flange. Therefore, there is still a need for improvement in the prior art (i) to further reduce the residual amount of liquid.
The prior art (two) is mainly disclosed as an atomizer having a liquid nozzle (liquid spray nozzle) and an atomizer diffuser (nebulizer diffuser) as in U.S. publication No. US5738086 (the patent family of which has australian publication No. AU1181595A, canadian publication No. CA2157581a1, european union publication No. EP0691862a1, japanese publication No. JPH08508671A, new zealand publication No. NZ276953A, U.S. publication No. US5579757, and PCT publication No. WO9520989a 1), and the liquid nozzle is a separate component, and the distance between a liquid orifice (fluid orifice) of the liquid nozzle and the atomizer diffuser may be different when the atomizer is assembled, thereby affecting the atomization effect. Furthermore, according to the description of the second prior art, an annular flange (annular flange) extends inwardly around the top of a second baffle (second baffle), and a pair of diffuser legs (diffuser legs) having longitudinal spaces (longitudinal spaces) extend downwardly from the inwardly extending annular flange to support the atomizer diffuser, which is exposed to the second baffle, which may spray larger droplets onto the wall of the atomizer, but partially remain on the wall. Therefore, there is still a need for improvement in the prior art (two) to further reduce the residual amount of liquid.
The invention content is as follows:
in view of the above-mentioned drawbacks and needs of the prior art, it is an object of the present invention to provide a medical vaporizer with an improved structure, which includes a first housing and a second housing, the first housing integrally forms a first nozzle having a first nozzle hole, the second housing integrally forms a second nozzle having a second nozzle hole and a conical cover having a protrusion and an annular inclined surface on the inner side, the protrusion forms an aerosol impact surface; the second shell is separably combined with the first shell, the second nozzle is positioned on the outer side of the first nozzle, a fluid channel is formed between the first nozzle and the second nozzle, the first nozzle hole is positioned on the inner side of the second nozzle hole, and the aerosol impact surface is positioned above the second nozzle hole.
The present invention has the advantages that the second nozzle and the conical cover body are integrally formed on the second shell, and the distance between the aerosol impact surface and the second nozzle hole is determined by a mould without assembly difference. Therefore, the present invention can ensure the assembling accuracy and the atomizing effect.
The invention has the beneficial effects that the aerosol impact surface is positioned at the inner side of the conical cover body, most of larger liquid drops are sprayed to the annular inclined surface of the conical cover body, and the wall surface of the medical atomizer reduces the attachment of the liquid drops. Therefore, the present invention can further reduce the residual amount of the liquid.
The invention has the beneficial effects that the conical cover body can form a proper aerosol escape space by the annular inclined surface and the second nozzle, and the annular inclined surface is beneficial to collecting and falling back larger liquid drops. Therefore, the present invention can optimize the amount of aerosol discharged and the amount of large droplet collected.
The features, technical means, specific functions and specific embodiments of the present invention are described in detail with reference to the drawings and the accompanying drawings.
Description of the drawings:
FIG. 1 is a perspective view of a preferred embodiment of the present invention.
FIG. 2 is a perspective exploded view of the preferred embodiment of the present invention.
Fig. 3 is a sectional view from a-a of fig. 1.
Fig. 4 is a sectional view taken along line B-B of fig. 1.
FIG. 5 is a schematic diagram illustrating the operation of the preferred embodiment of the present invention.
Fig. 6 is a cross-sectional view taken along line C-C of fig. 1.
Fig. 7 is another perspective view of the second housing of the present invention.
Fig. 8 is a cross-sectional view taken along line D-D of fig. 7.
Fig. 9 is another perspective view of the first housing of the present invention.
Fig. 10 is a cross-sectional view E-E of fig. 9.
The specific implementation mode is as follows:
referring to fig. 1 to 4, in a preferred embodiment, the medical vaporizer of the present invention includes a first housing 10 and a second housing 20; the first housing 10 has a first receiving space 11, the first receiving space 11 has a first nozzle 12, the first nozzle 12 has a first nozzle hole 120, a bottom 13 of the first housing 10 extends outward to form a gas inlet pipe 14, and the gas inlet pipe 14 is communicated with the first nozzle 12; the second housing 20 has a second nozzle 22, the second nozzle 22 has a second nozzle hole 220, the top 23 of the second housing 20 has an aerosol output tube 24, the aerosol output tube 24 is connected to a conical cover 25, the conical cover 25 is connected to the second nozzle 22, the inner side of the conical cover 25 has a protrusion 251 and an annular inclined surface 252, the protrusion 251 forms an aerosol impact surface 253; the second housing 20 is detachably coupled to the first housing 10, the second nozzle 22 is located outside the first nozzle 12, a fluid channel 26 is formed between the first nozzle 12 and the second nozzle 22, the first nozzle hole 120 is located inside the second nozzle hole 220, the aerosol impact surface 253 is located above the second nozzle hole 220, a first distance D1 is formed between the aerosol impact surface 253 and the second nozzle hole 220, a second distance D2 is formed between the top end 222 of the second nozzle hole 220 and the annular inclined surface 252, and the second nozzle hole 220 is higher than the bottom edge 254 of the annular inclined surface 252.
Referring to fig. 3 to 5, the operation of the present invention is illustrated as follows: when the second housing 20 is separated from the first housing 10, the first accommodating space 11 of the first housing 10 can be filled with the liquid 30 with the medicament; when the first housing 10 is combined with the second housing 20, the gas input pipe 14 can be connected to a pipe 40, the pipe 40 can be connected to a gas supply source (not shown) to input gas, and the gas forms a gas flow 41 at the second nozzle 22; when the airflow 41 passes through the first nozzle hole 120, the air pressure near the first nozzle hole 120 changes, so that the liquid 30 is guided to the fluid channel 26, and the airflow 41 drives the liquid 30 through the second nozzle hole 220 to form a jet (not shown) which generates a plurality of aerosols 31 and a plurality of larger droplets 32 after impacting the aerosol impact surface 253.
The manufacturing method of the first housing 10 and the second housing 20 will be described as follows: the first nozzle 12 and the gas input pipe 14 are integrally formed in the first housing 10; the second nozzle 22 and the conical cover 25 are integrally formed with the second housing 20; wherein the first separation D1 between the aerosol impact surface 253 and the second nozzle aperture 220 is determined by the mold without assembly variation. Therefore, the present invention can ensure the assembling accuracy and the atomizing effect.
The aerosol outlet conduit 24 is shown attached to the conical enclosure 25 in the following manner: the aerosol output tube 24 is connected to the conical cover 25 by a plurality of first connecting ribs 27, the adjacent first connecting ribs 27 form an aerosol window 271, and the height of the conical cover 25 ranges from 3 mm to 8 mm; wherein a plurality of aerosols 31 enter the aerosol output tube 24 through a plurality of aerosol windows 271, and a plurality of aerosols 31 are output from the aerosol output tube 24, as shown in fig. 5 and 7.
The connection between the second nozzle 22 and the conical cover 25 is described as follows: the conical cover 25 is connected to the second nozzle 22 by a plurality of second connecting ribs 28, as shown in fig. 7 to 8. Furthermore, the first distance D1 between the aerosol impact surface 253 and the second nozzle hole 220 ranges from 1 mm to 3 mm, and the second distance D2 between the top 222 of the second nozzle hole 220 and the annular inclined surface 252 ranges from 1.5 mm to 5 mm; the aerosol impact surface 253 is located inside the conical cover 25, and most of the larger droplets 32 will be sprayed onto the annular inclined surface 252 of the conical cover 25, so that the wall surface of the medical vaporizer will reduce the adhesion of the droplets 32. Therefore, the present invention can further reduce the residual amount of the liquid 30, as shown in fig. 4 to 5.
The positional relationship between the second nozzle hole 220 and the annular inclined surface 252 will be described below: the second nozzle hole 220 forms a third spacing D3 with the bottom edge 254 of the annular inclined surface 252, the third spacing D3 ranging from 0.1 mm to 3 mm; the annular inclined surface 252 of the conical cover 25 forms an included angle a, which ranges from 45 degrees to 70 degrees; the conical cover 25 forms a suitable aerosol escape space with the second nozzle 22 by the annular inclined surface 252, and the annular inclined surface 252 facilitates the collection and fall-back of the larger droplets 32. Therefore, the present invention can optimize the amount of the aerosol 31 discharged and the amount of the larger droplets 32 collected, as shown in fig. 3 to 5.
A first embodiment of the fluid channel 26 is illustrated as follows: a first gap g1 is formed between an end edge 223 of the second nozzle 22 and the bottom 13 of the first housing 10; the fluid passage 26 may be formed by a second gap g2 between the first nozzle 12 and the second nozzle 22, as shown in fig. 4 and 7.
A second embodiment of the fluid channel 26 is illustrated as follows: a first gap g1 is formed between an end edge 223 of the second nozzle 22 and the bottom 13 of the first housing 10; the second nozzle 22 is provided with a plurality of inner grooves 261 to form the fluid passage 26, as shown in fig. 4 and 7.
The structural changes of the first housing 10 and the second housing 20 are described as follows: the bottom 13 of the first housing 10 has an inclined extension 15 to reduce the residual amount of the liquid 30, as shown in fig. 9 to 10. Furthermore, the end edge 223 of the second nozzle 22 has a plurality of protrusions 225 to ensure a minimum distance of the first gap g1, as shown in fig. 4 and 7. In addition, the first housing 10 further has an annular leg 18, the length of the annular leg 18 is greater than the length of the gas inlet pipe 14, and the annular leg 18 has a plurality of notches 181, as shown in fig. 9 to 10.
The structural changes of the second housing 20 are described as follows: the aerosol output tube 24 has a first output tube portion 241 and a second output tube portion 242, the first output tube portion 241 is located outside the top portion 23 of the second housing 20, the second output tube portion 242 is located inside the top portion 23 of the second housing 20; when the medical vaporizer of the present invention is tilted, the second outlet tube 242 prevents the liquid 30 from flowing out of the second housing 20, as shown in fig. 3 to 8.
The combination of the first housing 10 and the second housing 20 is described as follows: the first casing 10 has a plurality of positioning blocks 19, the second casing 20 has a plurality of positioning slots 29, and when the first casing 10 and the second casing 20 rotate relatively, each positioning block 19 can enter or exit each positioning slot 29, as shown in fig. 3 to 10.
Claims (6)
1. A medical vaporizer having an improved structure, characterized by comprising:
a first housing (10) having a first receiving space (11), the first receiving space (11) having a first nozzle (12), the first nozzle (12) having a first nozzle hole (120), a bottom (13) of the first housing (10) extending outward to form a gas inlet pipe (14), the gas inlet pipe (14) communicating with the first nozzle (12);
a second housing (20) having a second nozzle (22), the second nozzle (22) having a second nozzle orifice (220), a top (23) of the second housing (20) having an aerosol outlet conduit (24), the aerosol outlet conduit (24) being connected to a conical cap (25), the conical cap (25) being connected to the second nozzle (22), the conical cap (25) having an inner side with a protrusion (251) and an annular inclined surface (252), the protrusion (251) forming an aerosol impact surface (253);
wherein the second housing (20) is detachably coupled to the first housing (10), the second nozzle (22) is located outside the first nozzle (12), a fluid channel (26) is formed between the first nozzle (12) and the second nozzle (22), the first nozzle hole (120) is located inside the second nozzle hole (220), the aerosol impact surface (253) is located above the second nozzle hole (220), a first distance (D1) is formed between the aerosol impact surface (253) and the second nozzle hole (220), a second distance (D2) is formed between the top end (222) of the second nozzle hole (220) and the annular inclined surface (252), and the second nozzle hole (220) is located higher than the bottom edge (254) of the annular inclined surface (252);
wherein the aerosol output tube (24) is connected with the conical cover body (25) by a plurality of first connecting ribs (27), the adjacent first connecting ribs (27) form an aerosol window (271), and the height range of the conical cover body (25) is between 3 mm and 8 mm;
wherein the conical cover (25) is connected to the second nozzle (22) by a plurality of second connecting ribs (28), the first distance (D1) ranges from 1 mm to 3 mm, and the second distance (D2) ranges from 1.5 mm to 5 mm;
wherein the second nozzle aperture (220) forms a third spacing (D3) with the bottom edge (254) of the annular inclined surface (252), the third spacing (D3) ranging from 0.1 mm to 3 mm;
wherein the annular inclined surface (252) of the conical cover (25) forms an included angle (a) ranging from 45 degrees to 70 degrees.
2. The improved structure of the medical vaporizer according to claim 1, wherein a first gap (g1) is formed between a distal edge (223) of the second nozzle (22) and the bottom (13) of the first housing (10); the fluid passageway (26) is formed by a second gap (g2) intermediate the first nozzle (12) and the second nozzle (22).
3. The improved structure of the medical vaporizer according to claim 1, wherein a first gap (g1) is formed between a distal edge (223) of the second nozzle (22) and the bottom (13) of the first housing (10); the second nozzle (22) is provided with a plurality of inner grooves (261) to form the fluid passage (26).
4. The improved structure of the medical vaporizer of claim 1, wherein the bottom (13) of the first housing (10) has an inclined extension (15), and the distal edge (223) of the second nozzle (22) has a plurality of projections (225); the first housing (10) further has an annular stand (18), the length of the annular stand (18) being greater than the length of the gas inlet pipe (14), the annular stand (18) having a plurality of notches (181).
5. The improved structure of a medical vaporizer according to claim 1, wherein the aerosol discharge tube (24) has a first discharge tube portion (241) and a second discharge tube portion (242), the first discharge tube portion (241) being located outside the top portion (23) of the second housing (20), the second discharge tube portion (242) being located inside the top portion (23) of the second housing (20).
6. The improved structure of the medical vaporizer according to claim 1, wherein the first housing (10) has a plurality of positioning blocks (19), the second housing (20) has a plurality of positioning grooves (29), and each positioning block (19) can enter or exit each positioning groove (29) when the first housing (10) and the second housing (20) rotate relatively.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW106121339A TWI674117B (en) | 2017-06-23 | 2017-06-23 | Medical nebulizer with improved structure |
| TW106121339 | 2017-06-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107497019A CN107497019A (en) | 2017-12-22 |
| CN107497019B true CN107497019B (en) | 2020-08-21 |
Family
ID=60689393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710603239.1A Active CN107497019B (en) | 2017-06-23 | 2017-07-22 | Medical atomizer with improved structure |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107497019B (en) |
| TW (1) | TWI674117B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0170715A1 (en) * | 1984-08-09 | 1986-02-12 | Inge Brugger | Nebulizer |
| US4657007A (en) * | 1982-06-28 | 1987-04-14 | Whittaker General Medical Corporation | Nebulizer |
| DE19755660A1 (en) * | 1997-12-15 | 1999-06-24 | Pari Gmbh | New unit useful as a sputtering unit |
| EP1541186A1 (en) * | 2003-12-12 | 2005-06-15 | FLAEM NUOVA S.p.A. | Nebulizer device |
| TWI339587B (en) * | 2007-09-21 | 2011-04-01 | Hsiner Co Ltd | |
| WO2011158715A1 (en) * | 2010-06-14 | 2011-12-22 | オムロンヘルスケア株式会社 | Nebulizer kit, and nebulizer |
| CN105233380A (en) * | 2015-11-16 | 2016-01-13 | 刘磊 | Medical atomizer |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201208444Y (en) * | 2008-06-06 | 2009-03-18 | 王京 | Novel atomizer |
| US9539408B2 (en) * | 2012-10-31 | 2017-01-10 | Trudell Medical International | Nebulizer apparatus |
| TWM542474U (en) * | 2017-02-13 | 2017-06-01 | Yu-Qi Chen | Liquid medicine atomizer |
-
2017
- 2017-06-23 TW TW106121339A patent/TWI674117B/en active
- 2017-07-22 CN CN201710603239.1A patent/CN107497019B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4657007A (en) * | 1982-06-28 | 1987-04-14 | Whittaker General Medical Corporation | Nebulizer |
| EP0170715A1 (en) * | 1984-08-09 | 1986-02-12 | Inge Brugger | Nebulizer |
| DE19755660A1 (en) * | 1997-12-15 | 1999-06-24 | Pari Gmbh | New unit useful as a sputtering unit |
| EP1541186A1 (en) * | 2003-12-12 | 2005-06-15 | FLAEM NUOVA S.p.A. | Nebulizer device |
| TWI339587B (en) * | 2007-09-21 | 2011-04-01 | Hsiner Co Ltd | |
| WO2011158715A1 (en) * | 2010-06-14 | 2011-12-22 | オムロンヘルスケア株式会社 | Nebulizer kit, and nebulizer |
| CN105233380A (en) * | 2015-11-16 | 2016-01-13 | 刘磊 | Medical atomizer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107497019A (en) | 2017-12-22 |
| TW201904620A (en) | 2019-02-01 |
| TWI674117B (en) | 2019-10-11 |
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