EP1380351B1 - Pompe distributrice avec dispositif antibactérienne - Google Patents

Pompe distributrice avec dispositif antibactérienne Download PDF

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Publication number
EP1380351B1
EP1380351B1 EP03015142A EP03015142A EP1380351B1 EP 1380351 B1 EP1380351 B1 EP 1380351B1 EP 03015142 A EP03015142 A EP 03015142A EP 03015142 A EP03015142 A EP 03015142A EP 1380351 B1 EP1380351 B1 EP 1380351B1
Authority
EP
European Patent Office
Prior art keywords
housing
opening
piston
double
piston rod
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.)
Expired - Lifetime
Application number
EP03015142A
Other languages
German (de)
English (en)
Other versions
EP1380351A1 (fr
Inventor
Ettore Masuzzo
Stefan Christ
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.)
Aero Pump GmbH
Original Assignee
Aero Pump 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 Aero Pump GmbH filed Critical Aero Pump GmbH
Publication of EP1380351A1 publication Critical patent/EP1380351A1/fr
Application granted granted Critical
Publication of EP1380351B1 publication Critical patent/EP1380351B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0037—Containers
    • B05B11/0039—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means
    • B05B11/0044—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means
    • B05B11/00444—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means with provision for filtering or cleaning the air flow drawn into the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0059—Components or details allowing operation in any orientation, e.g. for discharge in inverted position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1038—Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber
    • B05B11/104—Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber the outlet valve being opened by pressure after a defined accumulation stroke
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/105—Sealing arrangements around pump actuating stem
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1094—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle having inlet or outlet valves not being actuated by pressure or having no inlet or outlet valve
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14—Details; Accessories therefor
    • A61J1/1443—Containers with means for dispensing liquid medicaments in a filtered or sterile way, e.g. with bacterial filters
    • A61J1/145—Containers with means for dispensing liquid medicaments in a filtered or sterile way, e.g. with bacterial filters using air filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1066—Pump inlet valves
    • B05B11/107—Gate valves; Sliding valves

Definitions

  • the invention relates to a suction-pressure pump for dispensing a liquid from a container, with a housing in which an axially drilled piston Sealed axially via a first housing section is displaceable, with a piston bore continuing hollow piston rod, which is in an opening of a Closing hood of housing and container movable is and on its free end a tightly fastened Actuating head, by the actuation of the Piston against the force of a return spring in one Pressure chamber of the housing builds up a pressure, wherein the Actuating head of a subsequent to the bore Outlet channel via a check valve to a Outlet opening is interspersed for the liquid, with at least one opening in a second housing section between the first housing portion and the Closure cap.
  • a known suction-pressure pump of this type (US 5,655,689 and DE 27 09 796 B2) is for spraying or spraying a product out of the container, but not for dispensing single drops of a liquid, especially not in a head-over-posture, as is common for issue Liquid medication is required, drop by drop For example, in the eyes, ears or nose should be introduced.
  • the invention is based on the object, a suction-pressure pump specify the type mentioned, the suitable for the dropwise discharge of a liquid is and at the same time a contamination of the liquid by penetrating from outside via the discharge opening Germs and bacteria prevented.
  • the opening in the second housing section a extensive emptying of the container in the head-over-attitude allows the passage allows a suction the liquid in the suction stroke of the piston in the Upside-down attitude.
  • the groove in the outside of the inner Sleeve of the actuating head facilitates training the adjoining the check valve section the outlet channel before mating the two sleeves and the sealing of the groove against a Contamination.
  • adjoining the groove Expansion space reduces the pressure and speed the liquid during a dispensing stroke of the piston, so that the liquid in conjunction with the spraying action preventing opening width of the Outlet opening emerges only as drops, without spraying to become.
  • the germ and bacteria killing agent can be an alloy made of silver and copper. Such Alloy has proven to be very effective against germs and Bacteria proved.
  • this means may be formed as a helix, which surrounds the inner end of the inner sleeve and sufficient Room for the unimpeded passage of the to be issued Leaves fluid.
  • the filter also contains a silver-copper alloy and in addition activated carbon, causing not only kills germs but also effectively kills bacteria become.
  • the actuating head a rod coaxial with the piston rod and the Cap for a coaxial pipe to the piston rod has, which closely mesh and relative to each other axially, by undercuts limited, are displaceable.
  • This pipe socket enable not just the displacement of the piston in the housing upon actuation of the actuator head and a Guide the actuating head through the pipe socket of the Closure hood, but also a far-reaching seal the cavity in the neck, but still one Compensation of the air pressure in the cavity during the relative displacement of the two stubs on actuation and relief of the actuator head.
  • the illustrated suction-pressure pump 1 is on the radial slightly protruding edge 6 of the opening of a container 2 via a sealing ring disc arranged therebetween 3 tightly fastened in the snap fit.
  • the suction pressure pump 1 has a cup-shaped housing 4, the bottom 5 is closed is.
  • In the housing 4 is a hohlzyliridrischer Piston 7, against the inside 4 of the housing in one first housing portion 4a sealed, axially displaceable.
  • the bore 8 of the piston 7 is in a molded on the piston 7 hollow piston rod. 9 continued.
  • the piston rod 9 is in an opening 10 a Cap 11 of the housing 4 and 2 container up a small game largely sealed displaced.
  • Piston rod 9 On the free end of the protruding from the housing 4 Piston rod 9 is an actuating head 12 of the suction-pressure pump 1 tight and firmly attached.
  • the operating head 12 passes through an outlet 13, which is at the hole 8 connects.
  • the outlet 13 is set via a check valve 14 with a valve closure piece 15 and a return spring 16 to a discharge opening 17 in a cup-like outer sleeve 18th the actuating head 12 continues.
  • a second sleeve 19 In the outer sleeve 18th is a second sleeve 19 on the inside of the outer Sleeve 18 inserted tightly.
  • the inner diameter one at the bottom of the outer sleeve 18 adjacent End portion of the sleeve 18 is reduced relative to the remaining portion of the sleeve 18.
  • the another step-like transition 20 to a lower Has diameter and close to the Opening 17 protrudes.
  • This is between the sleeves 18th and 19 in their end portion areas an expansion space 21 limited.
  • a Germs and bacteria killing agent 22 is arranged in this expansion space 21 .
  • This agent forms a helix, the inner, the smallest diameter end of the inner sleeve 19 surrounds and sufficient space for the largely unimpeded flow one from the container 2 dropwise dispensed liquid 23, here a drug, leaves free.
  • Means 22, here a drug contains an alloy of silver and copper, which is effective for killing germs and bacteria.
  • the opening width of the outlet opening 17 is sized so large that the liquid 23 at the output only can be issued dropwise and not sprayed becomes.
  • the valve closure piece 15 is made of rubber-elastic Material, here an elastomer, and has a cylindrical Body, which is about in its axial center surrounded by a sealing lip 24.
  • the sealing lip 24 is below one caused by its inherent elasticity Spring force on the inside of a coaxial with the Piston rod 9 extending first portion of the outlet channel 13 and locks in the unactuated state the actuating head 12 has a transverse bore 25 in it subsequent section 13b of the outlet channel 13.
  • This Section also has a groove 26 in the outside the inner sleeve 19.
  • the groove 26 is from the outer Covered sleeve 18 and extends to the Expansion space 21, i. to the diameter transition 20.
  • the next to the transition 20 and opposite the fürflußweite the groove 26 finally considerably expanding expansion space 21 supports the dropwise discharge of the liquid 23.
  • the outer sleeve 18 has an all-round shoulder 28 for depressing the operating head 12 by means two fingers of one hand and is by a snap fit attached protective hood 29 covered. Before the operation the suction-pressure pump 1 becomes this protective hood 29 removed.
  • the piston 7 is in its unactuated position after the Fig. 1 and 2 with a circumferential at its free end Sealing lip 30 closely to the inside of the housing 4th at. Above the sealing lip 30 of the piston allows one Game between itself and the inside of the housing 4 free.
  • a return spring 31, which is shown interrupted is supported on the one hand in the piston 7 on the ground an annulus 32 extending from the outer wall of the piston 7 and a pipe socket 33 is limited, and on the other hand on a shoulder 34 in the housing 4 from.
  • the housing 4 has at the in Fig. 1 lower end of a through the housing 4 limited pressure chamber 35 a gradation 36, below the inner diameter of the housing 4th slightly larger than the outer diameter of the sealing lip 30th of the piston 7 is.
  • the piston rod 9 surrounding recess 39th is an annular air filter 40, on the piston rod 9 adjacent, firmly inserted.
  • the air filter 40 is for impermeable to germs contained in the air and containing a silver-copper alloy as well as activated carbon to go through the filter 40 and the opening 10 through the container 2 due to the output of the liquid 23 occurring Underpressure-penetrating air of germs and bacteria to free.
  • the opening edge 6 of the housing 4 is in an annular groove 41 of the closure cap 11 behind a flat rib 42nd snapped in the snap fit.
  • the actuating head 12 has a piston rod to the 9th coaxial pipe socket 43, and the closure cap 11 has a to the piston rod 9 coaxial pipe socket 44.
  • Die Pipe sockets 43 and 44 almost close together and are relative to each other axially, by undercuts limited, movable.
  • the cap is 11 including the parts connected to it the suction-pressure pump 1 on the opening edge 6 of the housing 4 mounted in a snap fit, wherein the sealing ring disc 3 seals the connection.
  • Germs and bacteria are in the helical Means 22 killed. Likewise, any in the Liquid 23 containing germs and bacteria on the large surface of the agent 22 killed, so they not into the eyes treated with the drug, Ears or nostrils can get.
  • the filter 40 made of porous plastic, preferably one Polyethylene, made in which the alloy and the activated carbon are included.
  • a modification of the illustrated embodiment may for example be that the grooves 38 omitted and instead the openings 37 to the lower end in Fig. 1 of the grooves 38 are extended.
  • the passage would then in the position of the piston. 7 1 or 2 directly above the openings 37th Approved.
  • the formation of the passage in the form of Grooves 38 has the advantage that the wall of the housing 4 less weakened, so that they the in pushing the housing 4 in the annular groove 41st the closure cap 11 occurring pressure rather withstand.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)
  • External Artificial Organs (AREA)
  • Massaging Devices (AREA)

Claims (8)

  1. Pompe aspirante-refoulante (1) pour distribuer un liquide (23) hors d'un récipient (2), comportant un boítier (4) dans lequel un piston (7) percé axialement est mobile en translation axiale avec étanchement sur un premier tronçon de boítier (4a), comportant une tige de piston (9) creuse prolongeant le perçage de piston (8), tige qui est mobile en translation dans une ouverture (10) d'un capuchon d'obturation (11) du boítier (4) et du récipient (2) et qui comprend à son extrémité libre une tête d'actionnement (12) fixée de façon étanche, tête par l'actionnement de laquelle le piston (7) établit une pression dans une chambre de pression (35) du boítier (4) à l'encontre de la force d'un ressort de rappel (31), la tête d'actionnement (12) étant traversée par un canal de sortie (13) se raccordant au perçage (8) via un clapet anti-retour (14) jusqu'à une ouverture de sortie (17) pour le liquide (23), comportant au moins une ouverture (37) dans un second tronçon de boítier (4b) entre le premier tronçon de boítier (4a) et le capuchon d'obturation (11), caractérisée en ce que dans l'état non actionné, sous l'effet de la force du ressort de rappel, le piston (7) libère un passage (38) entre la chambre de pression (35) et la ou chaque ouverture (37) dans le second tronçon de boítier (4b), en ce qu'entre deux douilles (18, 19) en forme de godet de la tête d'actionnement (12) qui sont enfichées latéralement l'une dans l'autre en prenant appui étanche l'une contre l'autre, un tronçon (13b) du canal de sortie (13), qui se raccorde au clapet anti-retour (14), présente une gorge (26) ménagée dans la face extérieure de la douille intérieure (19), gorge qui est recouverte par la douille extérieure (18) et qui s'étend jusqu'à une chambre d'expansion (21) en avant de l'ouverture de sortie (17) ménagée au fond de la douille extérieure (18), et en ce que dans la chambre d'expansion (21) est agencé un moyen (22) pour tuer des germes et des bactéries qui laisse passer le liquide (23) vers l'ouverture de sortie (17), en ce que le volume de distribution du piston (7) correspond au volume d'une goutte du liquide (23) et en ce que la largeur d'ouverture de l'ouverture de sortie (17) empêche un effet de pulvérisation.
  2. Pompe d'aspiration/refoulement selon la revendication 1, caractérisée en ce que le passage (38) est formé par au moins une gorge axiale dans la face intérieure d'un tronçon de boítier médian (4c) entre le premier et le second tronçon de boítier (4a, 4b).
  3. Pompe aspirante-refoulante selon la revendication 1 ou 2, caractérisée en ce que le moyen (22) pour tuer les germes et les bactéries comprend un alliage à base d'argent et de cuivre.
  4. Pompe aspirante-refoulante selon l'une des revendications 1 à 3, caractérisée en ce que le moyen (22) pour les germes et les bactéries forme une hélice qui entoure l'extrémité intérieure de la douille intérieure (19) et laisse libre suffisamment d'espace pour le passage sans obstacle du liquide (23) à distribuer.
  5. Pompe aspirante-refoulante selon l'une des revendications 1 à 4, caractérisée en ce que dans une échancrure (39) adjacente à l'ouverture (10) du capuchon d'obturation (11) et entourant la tige de piston (9), un filtre à air annulaire (40) est mis en place de façon fixe en prenant appui contre la tige de piston (9), filtre qui est imperméable vis-à-vis des germes contenus dans l'air.
  6. Pompe aspirante-refoulante selon la revendication 5, caractérisée en ce que le filtre contient un alliage à base d'argent et de cuivre et du charbon actif.
  7. Pompe aspirante-refoulante selon l'une des revendications 1 à 6, caractérisée en ce que la tête d'actionnement (12) comprend un manchon tubulaire (43) coaxial à la tige de piston (9) et le capuchon d'obturation (11) comprend un manchon tubulaire (44) coaxial à la tige de piston (9), qui s'emboítent l'un dans l'autre approximativement de façon étanche et qui sont mobiles en translation axiale l'un par rapport à l'autre en étant limités par des contre-dépouilles.
  8. Pompe aspirante-refoulante selon l'une des revendications 1 à 7, caractérisée en ce qu'une bordure d'ouverture (6) du boítier (4) est enclenchée par encliquetage dans une gorge annulaire (41) du capuchon d'obturation (11).
EP03015142A 2002-07-13 2003-07-04 Pompe distributrice avec dispositif antibactérienne Expired - Lifetime EP1380351B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10231749 2002-07-13
DE2002131749 DE10231749B4 (de) 2002-07-13 2002-07-13 Saug-Druck-Pumpe zum Ausgeben einer Flüssigkeit aus einem Behältnis

Publications (2)

Publication Number Publication Date
EP1380351A1 EP1380351A1 (fr) 2004-01-14
EP1380351B1 true EP1380351B1 (fr) 2005-09-14

Family

ID=29723891

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03015142A Expired - Lifetime EP1380351B1 (fr) 2002-07-13 2003-07-04 Pompe distributrice avec dispositif antibactérienne

Country Status (6)

Country Link
US (1) US6851583B2 (fr)
EP (1) EP1380351B1 (fr)
AT (1) ATE304410T1 (fr)
DE (2) DE10231749B4 (fr)
DK (1) DK1380351T3 (fr)
ES (1) ES2245429T3 (fr)

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DE102014221393A1 (de) * 2014-10-21 2016-04-21 F. Holzer Gmbh Pumpkopf für eine Dosiervorrichtung, Dosiervorrichtung sowie Verwendungsmöglichkeiten
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DE102016204953A1 (de) * 2016-03-24 2017-09-28 F. Holzer Gmbh Dosierpumpe für eine Dosiervorrichtung sowie Dosiervorrichtung
KR101817065B1 (ko) * 2016-06-01 2018-01-11 펌텍코리아 (주) 생산성과 밀폐력이 향상된 이종 내용물 혼합 용기
CN115339670B (zh) * 2022-09-02 2023-09-19 安徽立众新材料科技有限公司 一种可缓流进料的环保型液体物品装袋设备及其方法
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DE50301173D1 (de) 2005-10-20
US20040050858A1 (en) 2004-03-18
DK1380351T3 (da) 2006-01-02
DE10231749A1 (de) 2004-02-05
ES2245429T3 (es) 2006-01-01
DE10231749B4 (de) 2004-07-29
US6851583B2 (en) 2005-02-08
EP1380351A1 (fr) 2004-01-14
ATE304410T1 (de) 2005-09-15

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