JP5960840B2 - エジェクタ機構、エジェクタ装置及びそれらの使用方法 - Google Patents
エジェクタ機構、エジェクタ装置及びそれらの使用方法 Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/0008—Introducing ophthalmic products into the ocular cavity or retaining products therein
- A61F9/0026—Ophthalmic product dispenser attachments to facilitate positioning near the eye
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/0008—Introducing ophthalmic products into the ocular cavity or retaining products therein
-
- 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
- B05B17/0638—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 spray being produced by discharging the liquid or other fluent material through a plate comprising a plurality of orifices
- B05B17/0646—Vibrating plates, i.e. plates being directly subjected to the vibrations, e.g. having a piezoelectric transducer attached thereto
-
- 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
- B05B17/0653—Details
- B05B17/0661—Transducer materials
-
- 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
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- Animal Behavior & Ethology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ophthalmology & Optometry (AREA)
- Vascular Medicine (AREA)
- Veterinary Medicine (AREA)
- Reciprocating Pumps (AREA)
- Medicinal Preparation (AREA)
- Micromachines (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
- Coating Apparatus (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Description
実施例A:操作モード
多くの配置が可能ではあるが、一実施形態では、20mmで50μmの厚さの304ステンレス鋼製エジェクタプレートに結合された、6mmの径で160μmの厚さのNi‐Coジェネレータプレートを含む、圧電駆動エジェクタ機構を使用する。エジェクタプレート環状体には、ジェネレータプレートと連携して配置された4mmの径の中央開口が含まれ、圧電アクチュエータは、エジェクタプレートに直接取り付けられている。108.0kHzの変調周波数を圧電アクチュエータに印加し、これによって、エジェクタプレートがほぼ同じ周波数で振動する。デジタルホログラフィック顕微鏡像を捕捉し、ジェネレータプレートの振動を観察する。
本開示のエジェクタ機構の特定の実施形態において、噴霧性能は、圧電アクチュエータの取付け構造によって影響を受けると考えられる。例えば、図17A〜17Cは、圧電取付体が、A)縁部取付け、B)エジェクタプレート縁部から1mm、及びC)エジェクタプレート縁部から2mmから開始し、エジェクタプレート(膜)の縁部から徐々に離れて移動する。圧電体が、エジェクタプレートの内部に向かって、ジェネレータプレートに接近して移動するに従って、モード及び吐出性能が次第に抑制される。
本開示のエジェクタ機構の特定の実施形態において、流体負荷は、エジェクタ機構の性能に影響を及ぼすと考えられる。図21(PZT 19 OD、14 ID 0.225mmの厚さ;ポストタブ取付け構造に取り付けられたNiCoジェネレータプレート、20μmの孔、50μmの厚さ;50μmの厚さのステンレス鋼製エジェクタプレート、21mm OD、4mm ID)は、圧電駆動電圧の増加によって、+/−Z面におけるジェネレータプレートの変位及び振動が直接増加することを示す。デジタルホログラフィックイメージングを、流体と接触させて、ジェネレータプレートの振動の動力学を測定するのに使用する。
本開示のエジェクタ機構の特定の実施形態において、ジェネレータプレートの固有モードは、励起時に、ジェネレータプレートの形状、及び発生した噴霧に影響を及ぼすと考えられる。図23は、類似するエジェクタ機構から捕捉したデジタルホログラフィー像と重ねた本開示のエジェクタ機構から吐出された噴霧を表す、高速画像フレームを示し、これは、140kHzにおける通常モードのジェネレータプレートの振動を示す。
本開示のエジェクタ機構の特定の実施形態において、ジェネレータプレートの開口の配置及び構造は、噴霧性能に影響を及ぼすと考えられる。図24A〜Bは、ジェネレータプレートの開口の配置及び構造が、噴霧性能に影響を及ぼすことを示す。図24Aに示すように、開口の円形対称配置によって、正方形のホールアレイ(図24B)と比較して、噴霧量(質量堆積)が約2倍増加する。
Claims (13)
- 吐出された液滴流を発生するエジェクタ装置であって、
ハウジングと、
一定容積の流体を収容するために該ハウジング内部に配置された貯蔵部と、
該貯蔵部と流体連通状態にあり、液滴流を吐出するように構成されたエジェクタ機構であって、前記貯蔵部の流体送出領域と流体連通状態にある第1の面と、ジェネレータプレート及び圧電アクチュエータに連結された第2の面を有するエジェクタプレートを備える、前記エジェクタ機構と
を備え、
該ジェネレータプレートは、前記エジェクタプレートに連結され前記貯蔵部の流体送出領域と流体連通状態にある第1の流体入口面と、第2の流体出口面と、前記ジェネレータプレートの厚さを貫通して形成された複数の開口を有し、前記開口は、開口径に対する開口の高さが1と10の間であるアスペクト比を有し、第2の流体出口面における平均開口径が第1の流体入口面における平均開口径より小さく、
該圧電アクチュエータが、一定周波数で、該エジェクタプレートを振動させることで前記ジェネレータプレートを振動させ、それにより、使用時に吐出された液滴流を発生させるように動作可能である、前記装置。 - 前記エジェクタプレートが、前記ジェネレータプレートと連携して配置された中央開口領域を有し、前記圧電アクチュエータが、前記ジェネレータプレートの複数の開口を閉塞しないように、前記エジェクタプレートの周辺領域に連結されている、請求項1に記載の装置。
- 前記ジェネレータプレートの複数の開口が、前記ジェネレータプレートの中央領域に配置され、該中央領域が、前記圧電アクチュエータに覆われず、前記エジェクタプレートの中央開口領域と連携して配置されている、請求項2に記載の装置。
- 前記ジェネレータプレートのサイズが、前記エジェクタプレートよりも小さく、前記ジェネレータプレートのサイズが、前記中央領域によって占有された領域、及び前記複数の開口の配置によって、少なくとも部分的に決定される、請求項3に記載の装置。
- 前記圧電アクチュエータの前記エジェクタプレートへの取付け手段と位置、並びに、前記エジェクタ機構の前記ジェネレータプレートを貫く前記開口のサイズ、形状、及び、パターンは、吐出された液滴流を発生するように構成され、
前記吐出された液滴流は15ミクロンよりも大きな平均吐出液滴径を有し、前記液滴流が、使用時に標的の上に堆積するように低い混入空気流量を有する、請求項1に記載の装置。 - 前記圧電アクチュエータの前記エジェクタプレートへの取付け手段と位置、並びに、前記エジェクタ機構の前記ジェネレータプレートを貫く前記開口のサイズ、形状、及び、パターンは、吐出された液滴流を発生するように構成され、これによって、吐出された液滴の質量の少なくとも約75%が使用時に標的の上に堆積する、請求項1に記載の装置。
- 前記圧電アクチュエータの前記エジェクタプレートへの取付け手段と位置、並びに、前記エジェクタ機構の前記ジェネレータプレートを貫く前記開口のサイズ、形状、及び、パターンは、吐出された液滴流を発生するように構成され、前記液滴流は、20から400ミクロンの範囲内の平均吐出液滴径を有している、請求項1に記載の装置。
- 前記圧電アクチュエータの前記エジェクタプレートへの取付け手段と位置、並びに、前記エジェクタ機構の前記ジェネレータプレートを貫く前記開口のサイズ、形状、及び、パターンは、吐出された液滴流を発生するように構成され、前記吐出された液滴流は、0.5m/sから20m/sの範囲内の平均初期吐出速度を有している、請求項1に記載の装置。
- 液滴流を吐出するように構成されたエジェクタ機構であって、該エジェクタ機構は、
第1の流体送出面と、ジェネレータプレート及び圧電アクチュエータに連結された第2の面を有するエジェクタプレートと、
該エジェクタプレートに連結された第1の流体入口面と、第2の流体出口面と、前記ジェネレータプレートの厚さを貫通して形成された複数の開口を有するジェネレータプレートプレートを備え、
前記開口は、開口径に対する開口の高さが1と10の間であるアスペクト比を有し、第2の流体出口面における平均開口径が第1の流体入口面における平均開口径より小さく、
該圧電アクチュエータが、一定周波数で、該エジェクタプレートを振動させることで前記ジェネレータプレートを振動させ、それにより、使用時に吐出された液滴流を発生させるように動作可能である、前記エジェクタ機構。 - 前記エジェクタプレートが、前記ジェネレータプレートと連携して配置された中央開口領域を有し、前記圧電アクチュエータが、前記ジェネレータプレートの複数の開口を閉塞しないように、前記エジェクタプレートの周辺領域に連結されている、請求項9に記載のエジェクタ機構。
- 前記ジェネレータプレートの複数の開口が、前記ジェネレータプレートの中央領域に配置され、該中央領域が、前記圧電アクチュエータに覆われず、前記エジェクタプレートの中央開口領域と連携して配置されている、請求項10に記載のエジェクタ機構。
- 前記ジェネレータプレートのサイズが、前記エジェクタプレートよりも小さく、前記ジェネレータプレートのサイズが、前記中央領域によって占有された領域、及び前記複数の開口の配置によって、少なくとも部分的に決定される、請求項11に記載のエジェクタ機構。
- 前記圧電アクチュエータの前記エジェクタプレートへの取付け手段と位置、並びに、前記エジェクタ機構の前記ジェネレータプレートを貫く前記開口のサイズ、形状、及び、パターンは、吐出された液滴流を発生するように構成され、
前記吐出された液滴流は、15ミクロン以上の平均吐出液滴径を有し、0.5m/sから20m/sの範囲内の平均初期吐出速度を有し、これによって、吐出された液滴の質量の少なくとも約75%が使用時に標的の上に堆積する、請求項1に記載の装置。
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US201161569739P | 2011-12-12 | 2011-12-12 | |
US61/569,739 | 2011-12-12 | ||
US201261591786P | 2012-01-27 | 2012-01-27 | |
US61/591,786 | 2012-01-27 | ||
PCT/US2012/069296 WO2013090459A1 (en) | 2011-12-12 | 2012-12-12 | Ejector mechanism, ejector device, and methods of use |
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JP2015506731A JP2015506731A (ja) | 2015-03-05 |
JP5960840B2 true JP5960840B2 (ja) | 2016-08-02 |
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JP2014547392A Active JP6105621B2 (ja) | 2011-12-12 | 2012-12-12 | 高弾性高分子エジェクタ機構、エジェクタ装置及びそれらの使用方法 |
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EP (2) | EP2790619A1 (ja) |
JP (2) | JP5960840B2 (ja) |
CN (1) | CN104487028A (ja) |
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WO (2) | WO2013090459A1 (ja) |
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WO2013090468A1 (en) | 2013-06-20 |
US10639194B2 (en) | 2020-05-05 |
CN104582647A (zh) | 2015-04-29 |
US20180085251A1 (en) | 2018-03-29 |
US20180116871A1 (en) | 2018-05-03 |
JP2015500132A (ja) | 2015-01-05 |
EP2790619A1 (en) | 2014-10-22 |
JP6105621B2 (ja) | 2017-03-29 |
US10646373B2 (en) | 2020-05-12 |
WO2013090459A1 (en) | 2013-06-20 |
HK1208145A1 (en) | 2016-02-26 |
US20130150812A1 (en) | 2013-06-13 |
US20130172830A1 (en) | 2013-07-04 |
CN104487028A (zh) | 2015-04-01 |
EP2790620A1 (en) | 2014-10-22 |
JP2015506731A (ja) | 2015-03-05 |
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