EP1570912A2 - Dispositif de dosage - Google Patents

Dispositif de dosage Download PDF

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Publication number
EP1570912A2
EP1570912A2 EP05003229A EP05003229A EP1570912A2 EP 1570912 A2 EP1570912 A2 EP 1570912A2 EP 05003229 A EP05003229 A EP 05003229A EP 05003229 A EP05003229 A EP 05003229A EP 1570912 A2 EP1570912 A2 EP 1570912A2
Authority
EP
European Patent Office
Prior art keywords
dosing
dosing device
channel
wall
medium
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Withdrawn
Application number
EP05003229A
Other languages
German (de)
English (en)
Other versions
EP1570912A3 (fr
Inventor
Joachim Körner
Holger Schürle
Michael Helmlinger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aptar Radolfzell GmbH
Original Assignee
Erich Pfeiffer GmbH
Ing Erich Pfeiffer GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Erich Pfeiffer GmbH, Ing Erich Pfeiffer GmbH filed Critical Erich Pfeiffer GmbH
Publication of EP1570912A2 publication Critical patent/EP1570912A2/fr
Publication of EP1570912A3 publication Critical patent/EP1570912A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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

Definitions

  • the invention relates to a metering device for dispensing a medium in an environment, with one by adjoining wall sections formed, compared to an environment substantially completed Dosing, with at least one inlet, at least a wall section for a communicating connection between the metering chamber and a medium reservoir penetrates, with a Dosierö Stammsan eleven, the at least one wall section for a communicating connection between the dosing chamber and the environment penetrates, with at least one on at least one wall section mounted vibration device, which is for a vibration application at least one wall portion of the dosing is provided.
  • Such a metering device is known from the European patent application EP 1 129 741 known.
  • a metering device is described, which is composed of an upper and a lower substrate, wherein wall portions of the substrates define a metering space, the is substantially completed against an environment.
  • the upper one Substrate are provided in the wall sections metering, through the medium to be discharged in the environment of the metering device can be delivered.
  • a vibration device is mounted, that for the vibration of the lower substrate and thus the medium provided in the metering space is formed.
  • At the metering device is a lateral, between a wall section of the upper substrate and a wall portion of the lower one Substrate arranged inlet provided, the inflow of Medium from a medium storage in the dosing allowed.
  • the invention is based on the object, a device of the above mentioned type, which is easier to manufacture as well allows an improved medium discharge.
  • the wall sections are in separate Housing components provided. This is a specific adaptation each applied to the housing parts manufacturing process on the Requirements of the corresponding wall sections possible. While a first housing component in particular for receiving the Dosierö Stammsan instrument may be provided and thus appropriate facilities for supporting, fixing and sealing the Dosierö Stammsan instrument may have a second housing part specific be provided for the attachment of the vibration device and in particular for a low-loss forwarding of the vibration device formed vibrations formed in the metering be.
  • the object of the invention is also achieved in that on the Wall section provided for the attachment of the vibration device is, a zone of elasticity against vibration decoupling other wall sections is provided.
  • a zone of elasticity against vibration decoupling other wall sections is provided on the Wall section provided for the attachment of the vibration device.
  • the elasticity zone can be an undesirable swinging of wall sections off of the vibration device acted upon by the vibration device Wall section prevented or at least significantly reduced.
  • an undesired transmission of Vibrations on components of a discharge device for media, in which the metering device is usually installed can be prevented whereby a longevity of such a discharge improves can be.
  • Vibration decoupling a particularly advantageous introduction and Transmission of the vibrations generated in the dosing and in particular be realized on the auzutragende medium, which to achieve an advantageous efficiency of the vibration device leaves. This is especially true for mobile dispensers having a limited supply of energy a maximum number of discharge operations of particular interest.
  • the elasticity zone is at least partially circumferential groove and / or bead in the wall portion executed.
  • This can be a particularly advantageous preparation of Elasticity zone, in particular by Ur- or forming process realized become.
  • at least partially encircling Groove and / or beading can also have a far-reaching effect on the Vibration behavior of the excited by the vibrator Medium are achieved in the dosing, whereby discharge characteristics the metering device targeted by the design of the elasticity zone can be influenced.
  • the at least partially circumferential groove differentiates with regard to an effect of at least one partially circumferential bead, since the groove is a change of a Wall thickness is provided at least one wall portion, through which achieve an increase in the elasticity in this wall section leaves.
  • the change of the vibration characteristics is primarily waved through a creation of a particular changed geometry of the wall section, which at Deformation builds up lower internal stresses and thus a changed one Causes vibration behavior.
  • a range of elasticity can also from circumferential, parallel and / or arranged alternately Grooves and beads be constructed so that a particularly preferred Vibration behavior results.
  • a bead-like design of a groove In a further embodiment also conceivable a bead-like design of a groove.
  • At least one housing part made of an elastic material.
  • elastic materials come in particular plastics, metals, composites Plastics and metals, in particular with reinforcements of glass and / or carbon fibers in question.
  • the vibration characteristics of the metering device be pre-set in a wide range, whereby an extensive influence on the energy consumption and the Number and size of the discharged liquid particles is possible.
  • a further aspect of the invention is in at least one wall section at least one with the dosing and with the environment and / or the medium memory communicating channel section provided.
  • a channel section in particular directly in advance of a medium discharge to be carried out with medium is fillable, in particular capillary forces for a filling provide the channel section, can provide an advantageous supply of the Dosing with medium during the discharge realized become.
  • capillary forces for a filling provide the channel section, can provide an advantageous supply of the Dosing with medium during the discharge realized become.
  • the discharge from the dosing to ensure a Predeterminable distribution of drop number and drop size depressurized.
  • a conveyor is responsible for the promotion the medium provided from a medium storage in the dosing is, during the discharge process is inactive and a supply line from the medium storage in the dosing, in particular by a Valve device is locked. Nevertheless, a sufficient amount of media from the metering room to be able to carry out in the environment and at the same time limit the size of the dosing space to one volume to be smaller than the amount of medium to be discharged, to a to achieve advantageous discharge behavior for the medium, which is at least a channel section is provided which communicates with the Dosing is connected, but at best indirectly in the area Vibration propagation provided by the vibration device is.
  • the channel section is at least arranged in sections circumferentially around the dosing around.
  • a preferred embodiment is a annular channel section for uniform medium supply of the provided throughout the dosing.
  • the one or more channel sections Circular and / or point symmetric around the Dosing arranged around, resulting in a particularly compact Arrangement of the channel sections and a homogeneous and low-friction Flow of medium into the dosing let realize.
  • the channel section is at least executed in sections meandering.
  • This will be a special compact integration of the channel section in the wall section allows. Due to the at least partially curved course the channel section can be a particularly favorable ratio between a channel section length, a channel section volume and a for this length or volume required area in the wall section be realized.
  • positive and negative curved channel sections can be the meandering design of the channel section particularly advantageous realize.
  • the channel section is one-sided open groove executed.
  • the design as a unilaterally open groove are in particular Channel sections that are to be filled by capillary forces, in a simple Way to realize because the necessary, extremely small Channel cross sections introduced from an outer surface of the wall section forth can be.
  • the channel section is through a flat surface housing part at least substantially opposite closed to the environment. This can in a particularly simple manner at least substantially closed to the environment Channel section can be realized.
  • the channel section is one, in particular by a filter unit from the environment delimited, ventilation opening facing away from the dosing End of the channel section provided. Through the ventilation opening In particular, air or a protective gas in the channel section inflow to an afterflow of the stored in the channel section Medium into the dosing chamber during the discharge process too facilitate.
  • the on the channel section resting wall section at least in sections as a filter membrane executed.
  • This can cause a subsequent flow of medium into the dosing ensured during the discharge from the channel section without contamination from the environment Dosing device can enter the channel section.
  • the filter membrane is hydrophobic and / or liquid-tight membrane with germ-blocking effect executed, so that when filling the channel section with a medium Leakage of the medium is excluded by the filter membrane. At the same time this ensures that germs or other contaminating Do not pass substances through the filter membrane into the channel section can get into it.
  • housing parts are at least partially connected cohesively.
  • a cohesive Connection of the housing parts in particular in the area of the metering and / or the channel sections limiting wall sections can be in a preferred manner a liquid-tight connection between the housing parts.
  • a cohesive connection between the housing parts can in particular by gluing, Ultrasonic welding or laser welding can be realized.
  • the Dosierö Stammsan extract and / or the vibration device in a plastic injection-molded part injected wall section injected.
  • This can be a particularly intimate connection between the Dosierö Stammsan instrument and / or the vibration device and the corresponding wall section be generated. It will also be in a connection area between the Dosierö Stammsan extract and / or the vibration device and the wall portion, the material from which the wall portion is only slightly disturbed, because of subsequent energy inputs and / or solvents contained in otherwise required adhesives can be waived.
  • a further embodiment of the invention are in and / or on wall sections made of electrically insulating materials electrical interconnects intended for contacting electrical components.
  • These Guideways in particular by a multi-component injection molding process allow a simple integration of electrical Consumers, sensors and / or switches in the wall sections. On complicated contacting measures after the production of corresponding wall sections can be dispensed with. In order to can be a particularly easy and reliable manufacturable contact Realize the electrical components.
  • the interconnects can also by subsequently applied PVD metal coatings, Screen printing or pad printing of metal layers or the like Way be realized.
  • a metering device 1 essentially of an upper part 3, a Lower part 4, a Dosierö Stammsan instrument 5 and a vibration device 6 built. It is made of silicon material Dosierö Stammsan extract 5 from an underside of the upper part 3 forth in introduced the upper part 3 and secured with an adhesive connection 14.
  • an adhesive connection 14 is in the Upper part 3 a arranged around a recessed receiving area 15, circumferential adhesive groove 16 is provided. This adhesive groove 16 allows a Dodge excess adhesive during the bonding process and thus ensures that one provided with metering 17 End face of the Dosierö Stammsan extract 5 not contaminated by adhesive becomes.
  • the meandering running Channel section 8 has an annular channel 18 which communicates a Connection with the metering chamber 19 shown in more detail in FIG. 3 having.
  • the annular channel 18 is further communicating with an inlet 9 connected, in turn, a connection not shown with produces a medium storage.
  • a ventilation opening 20 is provided, communicating with a ventilation duct 21, which in turn either in an environment or in the media store opens to emptying the channel section 8 during the discharge process to enable.
  • the lower part 4 and the upper part 3 form with their respective opposite Wall sections 2a, 2b the dosing 19, which also by the Dosierö Stammsan accent 5 is limited.
  • the vibration device 6 is also cohesively on one after attached outside wall portion 2c and with not shown, electrical contacting means for a power supply to Generation of vibrations connected.
  • the dosing 19 includes of the present embodiment has a height of about 50 ⁇ m.
  • the meandering channel section 8 is under Inclusion of the annular channel 18 a much larger volume than the metering chamber 19 has.
  • a substantially pressure-free discharge process for the medium can thus be a multiple of the immediate in the Discharge 19 absorbable amount of liquid without that a Nachbine of medium from the medium storage, not shown via the inlet 9 is required.
  • the metering chamber 19 is in its volume compared to a filling volume the channel portion 8 and the annular space 18, the common form a pre-metering chamber, negligible.
  • the Channel section 58 as an open groove in an outward from the dosing away facing front side of the upper part 53 and realized by means of a filter membrane 60, the material fit on the front side of the upper part 53 can be applied, closed.
  • the filter membrane 60 is at least in sections as hydrophobic, gas-permeable and germ-blocking Executed membrane and thus allows an influx of ambient atmosphere, in particular air, into the channel section 58 during the discharge process.
  • the filter membrane 60 allows during filling the channel sections, in particular by capillary forces can take place, an outflow of air flowing through the incoming Medium is displaced.
  • the Dosierö Stammsan instrument 55 corresponds to that from Figs. 1 to 3, i. Also here metering openings 67 are provided. Also the cohesive connection of the Dosierö Stammsan extract 55 with the top 53 is the same as in the embodiment 1 to 3 carried out.
  • the metering chamber 69 is bounded by a metal diaphragm 74 down, wherein in the metal membrane 74 is a circular, concentrically arranged Elastic zone 57, which is designed as a bead provided is.
  • the vibration device 56 is cohesively on an underside of Metal diaphragm 74 is attached and in the same way as the vibration device 6 electrically contacted according to FIGS. 1 to 3.
  • the metal membrane 74 is in the top 53 by a with stamping 76 provided centering 75 held positively.
  • the printing stamp 76 represent a surface edition of a top of Metal diaphragm 74 against a bottom of the upper 53 safe.
  • the amount of filling by the conveyor is in any case set larger than the maximum filling volume of the channel section and the annulus and thus the pre-metering chamber. excess Liquid will automatically enter through the vent pipe the medium storage returned. It is therefore always a complete one and thus ensuring filling without the conveyor have special requirements for exact dosages got to. As a promotion is also a medium transport by capillary action to understand. In this case, the conveyor by a shut-off device defined, which shuts off the filling by capillary action or releases.

Landscapes

  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Measuring Volume Flow (AREA)
  • Nozzles (AREA)
  • Special Spraying Apparatus (AREA)
  • Reciprocating Pumps (AREA)
EP05003229A 2004-03-05 2005-02-16 Dispositif de dosage Withdrawn EP1570912A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004011726A DE102004011726A1 (de) 2004-03-05 2004-03-05 Dosiervorrichtung
DE102004011726 2004-03-05

Publications (2)

Publication Number Publication Date
EP1570912A2 true EP1570912A2 (fr) 2005-09-07
EP1570912A3 EP1570912A3 (fr) 2008-02-20

Family

ID=34745443

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05003229A Withdrawn EP1570912A3 (fr) 2004-03-05 2005-02-16 Dispositif de dosage

Country Status (4)

Country Link
US (1) US20050201870A1 (fr)
EP (1) EP1570912A3 (fr)
JP (1) JP2005246377A (fr)
DE (1) DE102004011726A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2189175A1 (fr) * 2008-11-24 2010-05-26 Microflow Engineering SA Nébuliseur
WO2013160883A1 (fr) * 2012-04-26 2013-10-31 Koninklijke Philips N.V. Nébuliseur et procédé de fabrication d'un nébuliseur
EP1850896B1 (fr) * 2005-02-11 2017-06-07 PARI Pharma GmbH Dispositif générateur d'aérosol et appareil thérapeutique d'inhalation équipé d'un tel dispositif

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1792662A1 (fr) * 2005-11-30 2007-06-06 Microflow Engineering SA Appareil de distribution de gouttelettes
DE102006061506B4 (de) 2006-12-15 2008-10-30 Ing. Erich Pfeiffer Gmbh Dosiervorrichtung
EP1952896B1 (fr) * 2007-02-01 2012-11-07 EP Systems SA Appareil de distribution de gouttelettes
DE602008003319D1 (de) * 2008-06-03 2010-12-16 Microflow Eng Sa Spendervorrichtung für flüchtige flüssige Tröpfchen
DE102010024913A1 (de) 2010-06-15 2011-12-15 Ing. Erich Pfeiffer Gmbh Zerstäubervorrichtung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5898259A (ja) 1981-12-08 1983-06-11 Matsushita Electric Ind Co Ltd インクジエツトヘツド
EP0923957A1 (fr) 1997-11-19 1999-06-23 Microflow Engineering SA Nébuliseur de goutelettes pour un Inhalateur thérapeutique
EP1273355A1 (fr) 2001-02-23 2003-01-08 Microflow Engineering SA Procédé de fabrication d'un nébuliseur de goutelettes et un tel nébuliseur
EP1287905A1 (fr) 2001-09-03 2003-03-05 Microflow Engineering SA Dispositif de pulvérisation de gouttes de liquide
US20030047620A1 (en) 2001-05-02 2003-03-13 Aerogen, Inc. Base isolated nebulizing device and methods
US20030192959A1 (en) 2002-03-05 2003-10-16 Microflow Engineering Sa Method and system for ambient air scenting and disinfecting based on flexible, autonomous liquid atomizer cartridges and an intelligent networking thereof

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AU681470B2 (en) * 1993-12-28 1997-08-28 Westonbridge International Limited Micropump
CH689836A5 (fr) * 1994-01-14 1999-12-15 Westonbridge Int Ltd Micropompe.
US5996903A (en) * 1995-08-07 1999-12-07 Omron Corporation Atomizer and atomizing method utilizing surface acoustic wave
US6053976A (en) * 1997-05-08 2000-04-25 Fuji Photo Film Co., Ltd. Fluid injecting apparatus and method of manufacturing fluid injection apparatus
DE19944383A1 (de) * 1999-09-16 2001-04-19 Ticona Gmbh Gehäuse für elektrische oder elektronische Vorrichtungen mit integrierten Leiterbahnen
CA2311622A1 (fr) * 2000-06-15 2001-12-15 Moussa Hoummady Distributeur goutte a goutte de quantites inferieures au nanolitre, et methode connexe
JP2002121404A (ja) * 2000-10-19 2002-04-23 Polymatech Co Ltd 熱伝導性高分子シート
DE10065855A1 (de) * 2000-12-22 2002-07-04 Bsh Bosch Siemens Hausgeraete Dosiervorrichtung zur Förderung geringer Stoffmengen
EP1236517A1 (fr) * 2001-02-23 2002-09-04 Microflow Engineering SA Procédé de fabrication d'un nébuliseur de goutelettes et un tel nébuliseur
US6550691B2 (en) * 2001-05-22 2003-04-22 Steve Pence Reagent dispenser head
DK1287904T3 (da) * 2001-09-03 2006-04-03 Microflow Eng Sa Forstövningsindretning til væsker
US6543701B1 (en) * 2001-12-21 2003-04-08 Tung-Huang Ho Pocket-type ultrasonic atomizer structure
US6945627B2 (en) * 2002-06-27 2005-09-20 Canon Kabushiki Kaisha Ink jet recording apparatus and ink jet recording method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5898259A (ja) 1981-12-08 1983-06-11 Matsushita Electric Ind Co Ltd インクジエツトヘツド
EP0923957A1 (fr) 1997-11-19 1999-06-23 Microflow Engineering SA Nébuliseur de goutelettes pour un Inhalateur thérapeutique
EP1129741A2 (fr) 1997-11-19 2001-09-05 Microflow Engineering SA Dispositif de pulvérisation pour inhalateur
EP1273355A1 (fr) 2001-02-23 2003-01-08 Microflow Engineering SA Procédé de fabrication d'un nébuliseur de goutelettes et un tel nébuliseur
US20030047620A1 (en) 2001-05-02 2003-03-13 Aerogen, Inc. Base isolated nebulizing device and methods
EP1287905A1 (fr) 2001-09-03 2003-03-05 Microflow Engineering SA Dispositif de pulvérisation de gouttes de liquide
US20030192959A1 (en) 2002-03-05 2003-10-16 Microflow Engineering Sa Method and system for ambient air scenting and disinfecting based on flexible, autonomous liquid atomizer cartridges and an intelligent networking thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1850896B1 (fr) * 2005-02-11 2017-06-07 PARI Pharma GmbH Dispositif générateur d'aérosol et appareil thérapeutique d'inhalation équipé d'un tel dispositif
EP2189175A1 (fr) * 2008-11-24 2010-05-26 Microflow Engineering SA Nébuliseur
WO2013160883A1 (fr) * 2012-04-26 2013-10-31 Koninklijke Philips N.V. Nébuliseur et procédé de fabrication d'un nébuliseur
RU2627380C2 (ru) * 2012-04-26 2017-08-08 Конинклейке Филипс Н.В. Ингалятор и способ изготовления ингалятора
US9821125B2 (en) 2012-04-26 2017-11-21 Koninklijke Philips N.V. Nebulizer and a method of manufacturing a nebulizer

Also Published As

Publication number Publication date
DE102004011726A1 (de) 2005-09-22
US20050201870A1 (en) 2005-09-15
EP1570912A3 (fr) 2008-02-20
JP2005246377A (ja) 2005-09-15

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