EP0737273B1 - Mikropumpe - Google Patents
Mikropumpe Download PDFInfo
- Publication number
- EP0737273B1 EP0737273B1 EP95902252A EP95902252A EP0737273B1 EP 0737273 B1 EP0737273 B1 EP 0737273B1 EP 95902252 A EP95902252 A EP 95902252A EP 95902252 A EP95902252 A EP 95902252A EP 0737273 B1 EP0737273 B1 EP 0737273B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- movable wall
- micropump
- pumping chamber
- fluid
- micropump according
- 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
Links
- 238000005086 pumping Methods 0.000 claims description 93
- 239000012528 membrane Substances 0.000 claims description 60
- 239000012530 fluid Substances 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 7
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 230000002277 temperature effect Effects 0.000 claims description 2
- 230000001747 exhibiting effect Effects 0.000 claims 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 21
- 229910052710 silicon Inorganic materials 0.000 description 21
- 239000010703 silicon Substances 0.000 description 21
- 235000012431 wafers Nutrition 0.000 description 12
- 239000000126 substance Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 239000008188 pellet Substances 0.000 description 7
- 238000004026 adhesive bonding Methods 0.000 description 6
- 239000011521 glass Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 229910052814 silicon oxide Inorganic materials 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 230000032683 aging Effects 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 4
- 239000003814 drug Substances 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 229940079593 drug Drugs 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 210000000056 organ Anatomy 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000005459 micromachining Methods 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001647 drug administration Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical class [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/04—Pumps having electric drive
- F04B43/043—Micropumps
- F04B43/046—Micropumps with piezoelectric drive
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Claims (14)
- Mikropumpe mit zumindest einem Basisplättchen (2), zumindest einem oberen Plättchen (8) und einem zwischen die beiden anderen Plättchen (2, 8) eingefügten Zwischenplättchen (6), das aus einem Werkstoff besteht, der so bearbeitet werden kann, dass eine Pumpenkammer (50) definiert wird, zumindest einem Regelorgan (12) für den Fluideintritt, um die Pumpenkammer mit zumindest einem Eingang (10) der Mikropumpe zu verbinden, und zumindest einem Regelorgan (28) für den Fluidaustritt, um die Pumpenkammer (50) mit zumindest einem Ausgang (4) der Mikropumpe zu verbinden, wobei die Pumpenkammer (50) eine bewegliche Wand (56, 156, 256) umfasst, die aus dem Zwischenplättchen (6) herausgearbeitet worden ist und während des Ansaugens eines Fluids vom Eingang (10) in die Pumpenkammer (50) bzw. während des Ausstosses dieses Fluids aus der Pumpenkammer zum Ausgang (4) in zwei entgegengesetzten Richtungen verschoben werden kann, und Betätigungsorgane (70, 170, 270) vorgesehen sind, um die benannte bewegliche Wand (56, 156, 256) zu verschieben und so eine periodische Veränderung des Volumens der Pumpenkammer (50) hervorzurufen, während zweite Anschlagelemente (2, 60; 2, 160; 2, 260) dazu bestimmt sind, die Bewegung für den Fluidausstoss aus der Pumpenkammer (50) zu begrenzen, dadurch gekennzeichnet, dass die Mikropumpe erste Anschlagelemente (58, 62, 64; 158, 162, 164; 258, 270) umfasst, die die Bewegung für das Fluidansaugen in die Pumpenkammer (50) begrenzen, wobei die ersten und zweiten Anschlagelemente so eingerichtet sind, dass sie die Bewegungsamplitude der beweglichen Wand (56, 156, 256) in den beiden entgegengesetzten Richtungen begrenzen.
- Mikropumpe gemäss Anspruch 1, dadurch gekennzeichnet, dass die bewegliche Wand (56) eine starre zentrale Partie (58) hat, die von einer zusammen mit dieser starren zentralen Partie (58) aus einem Stück herausgearbeiteten, elastischen Einfassung geringerer Dicke (61) umgeben ist, wobei diese starre zentrale Partie aus der der Pumpenkammer (50) entgegengesetzten Seite der beweglichen Wand (56) hervorspringt, die dazu bestimmt ist, mit dem Plättchen (2, 8) in Berührung zu kommen, das ihr gegenüber angeordnet ist, um so die benannten ersten Anschlagelemente zu bilden, die die Fluidansaugbewegung der beweglichen Wand (56) begrenzen.
- Mikropumpe gemäss Anspruch 2, dadurch gekennzeichnet, dass die Weite der benannten starren zentralen Partie (58) zwischen 20 und 90 %, vorzugsweise zwischen 50 und 80 % der Weite der beweglichen Wand (56) schwankt.
- Mikropumpe gemäss Anspruch 1, dadurch gekennzeichnet, dass die dem Innenraum der Pumpenkammer (50) zugewandte Seite der beweglichen Wand (56) ein oder mehrere Erhebungen (60, 160, 260) umfasst, die zusammen mit dem ihnen gegenüber angeordneten Plättchen (2) die zweiten Anschlagelemente bilden, die die Fluidausstossbewegung begrenzen.
- Mikropumpe gemäss einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Betätigungsorgane (70) ein Antriebsorgan (72), das beweglich entweder auf das Basisplättchen (2) oder auf das obere Plättchen (8) montiert ist, sowie ein Zwischenstück (84), das zwischen der beweglichen Wand (56) und dem Antriebsorgan (72) angeordnet ist, umfassen.
- Mikropumpe gemäss Anspruch 5, dadurch gekennzeichnet, dass das Antriebsorgan (72) beweglich auf die Aussenseite des benannten oberen Plättchens (8) montiert ist, wobei das benannte Zwischenstück (84) durch eine Öffnung (89) des oberen Plättchens (8) hindurchtritt.
- Mikropumpe gemäss Anspruch 6, dadurch gekennzeichnet, dass das Antriebsorgan ein piezoelektrisches Element (72, 80) ist, das über einen Abstandshalter (82) auf die Aussenseite des oberen Plättchens (8) montiert ist.
- Mikropumpe gemäss Anspruch 6 oder 7, dadurch gekennzeichnet, dass das Zwischenstück (84) einen mit dem piezoelektrischen Element (72, 80) fest verbundenen flachen Kopf (86) sowie einen Schaft (88) umfasst, der durch das obere Plättchen (8) hindurchtritt und mit seinem Ende auf die bewegliche Wand (56) einwirkt.
- Mikropumpe gemäss Anspruch 1, dadurch gekennzeichnet, dass sie Elektroden (62, 64; 162, 164; 262, 264) umfasst, die einander gegenüberstehend auf der beweglichen Wand (56; 156; 256) und auf dem oberen Plättchen (8) angeordnet und mit einem Stromkreis verbunden sind, der es gestattet, die Funktion der deformierbaren Wand (56; 156; 256) zu steuern.
- Mikropumpe gemäss Anspruch 1, dadurch gekennzeichnet, dass die bewegliche Wand (156) aus einer Membran besteht, die eine hervorspringende zentrale Partie (158) aufweist, die zusammen mit dem oberen Plättchen (8) die benannten ersten Anschlagelemente bildet und von einem piezoelektrischen Element (172) umgeben ist, das an der Membran befestigt ist und in der Mitte eine Bohrung (173) aufweist, die den Durchtritt des Mittelstücks (158) gestattet.
- Mikropumpe gemäss Anspruch 1, dadurch gekennzeichnet, dass die ersten Anschlagelemente von einer Stellschraube (90, 265) gebildet werden, die das obere Plättchen (8) durchquert und deren eines Ende gegenüber der beweglichen Wand (56, 256) angeordnet ist.
- Mikropumpe gemäss Anspruch 11, dadurch gekennzeichnet, dass ein piezoelektrisches Element (270) zwischen das benannte Ende der Schraube (265) und die bewegliche Wand (256) eingefügt und mit letzterer fest verbunden worden ist.
- Mikropumpe gemäss Anspruch 11 oder 12, dadurch gekennzeichnet, dass die Schraube oder Schrauben (90, 265) aus einem Material gefertigt sind, das geeignet ist, die durch Temperatureffekte hervorgerufenen Gestaltsänderungen der beweglichen Wand (56, 256) auszugleichen.
- Mikropumpe gemäss einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, dass sie zweite, einander gegenüber angeordnete Elektroden (44, 46) umfasst, wobei eine (44) dieser zweiten Elektroden auf eine bewegliche Wand montiert ist, die stromab von der Pumpenkammer (50) so angeordnet ist, dass der Fluidausstoss der Mikropumpe gesteuert werden kann.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH3878/93 | 1993-12-28 | ||
CH387893 | 1993-12-28 | ||
PCT/IB1994/000435 WO1995018307A1 (fr) | 1993-12-28 | 1994-12-21 | Micropompe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0737273A1 EP0737273A1 (de) | 1996-10-16 |
EP0737273B1 true EP0737273B1 (de) | 1998-05-20 |
Family
ID=4265440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95902252A Expired - Lifetime EP0737273B1 (de) | 1993-12-28 | 1994-12-21 | Mikropumpe |
Country Status (8)
Country | Link |
---|---|
US (1) | US5759015A (de) |
EP (1) | EP0737273B1 (de) |
JP (1) | JP3718724B2 (de) |
AU (1) | AU681470B2 (de) |
CA (1) | CA2179063C (de) |
DE (1) | DE69410487T2 (de) |
SG (1) | SG44800A1 (de) |
WO (1) | WO1995018307A1 (de) |
Families Citing this family (138)
Publication number | Priority date | Publication date | Assignee | Title |
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DE19546570C1 (de) * | 1995-12-13 | 1997-03-27 | Inst Mikro Und Informationstec | Fluidpumpe |
FR2748310A1 (fr) | 1996-05-03 | 1997-11-07 | Debiotech Sa | Dispositif d'obturation par pincement d'un tube souple |
FR2757906A1 (fr) | 1996-12-31 | 1998-07-03 | Westonbridge Int Ltd | Micropompe avec piece intermediaire integree |
DE19719862A1 (de) * | 1997-05-12 | 1998-11-19 | Fraunhofer Ges Forschung | Mikromembranpumpe |
WO1999009321A1 (fr) * | 1997-08-20 | 1999-02-25 | Westonbridge International Limited | Micropompe comprenant un organe de controle d'entree permettant son auto-amorcage |
US6106245A (en) * | 1997-10-09 | 2000-08-22 | Honeywell | Low cost, high pumping rate electrostatically actuated mesopump |
US5836750A (en) * | 1997-10-09 | 1998-11-17 | Honeywell Inc. | Electrostatically actuated mesopump having a plurality of elementary cells |
US6247908B1 (en) * | 1998-03-05 | 2001-06-19 | Seiko Instruments Inc. | Micropump |
US6908770B1 (en) | 1998-07-16 | 2005-06-21 | Board Of Regents, The University Of Texas System | Fluid based analysis of multiple analytes by a sensor array |
US6148635A (en) * | 1998-10-19 | 2000-11-21 | The Board Of Trustees Of The University Of Illinois | Active compressor vapor compression cycle integrated heat transfer device |
EP0995908A1 (de) * | 1998-10-20 | 2000-04-26 | vanden Brande, Pierre | Molekularpumpe |
JP3620316B2 (ja) * | 1998-11-16 | 2005-02-16 | 株式会社日立製作所 | マイクロポンプとその製造方法 |
EP1179139B1 (de) * | 1999-05-17 | 2003-08-13 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Mikromechanische pumpe |
EP1204859B1 (de) | 1999-07-16 | 2006-11-22 | The Board Of Regents, The University Of Texas System | Verfahren und vorrichtung zur zuführung von proben zu einer chemischen sensormatrix |
JP3814132B2 (ja) * | 1999-10-27 | 2006-08-23 | セイコーインスツル株式会社 | ポンプ及びその駆動方法 |
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FR1177065A (fr) * | 1956-05-29 | 1959-04-20 | Kontak Mfg Co Ltd | Diaphragme et pompe à diaphragme |
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CH679555A5 (de) * | 1989-04-11 | 1992-03-13 | Westonbridge Int Ltd | |
EP0435653B1 (de) * | 1989-12-27 | 1994-06-01 | Seiko Epson Corporation | Mikropumpe |
KR910012538A (ko) * | 1989-12-27 | 1991-08-08 | 야마무라 가쯔미 | 마이크로 펌프 및 그 제조 방법 |
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-
1994
- 1994-12-21 AU AU11180/95A patent/AU681470B2/en not_active Ceased
- 1994-12-21 EP EP95902252A patent/EP0737273B1/de not_active Expired - Lifetime
- 1994-12-21 CA CA002179063A patent/CA2179063C/en not_active Expired - Fee Related
- 1994-12-21 JP JP51787595A patent/JP3718724B2/ja not_active Expired - Lifetime
- 1994-12-21 WO PCT/IB1994/000435 patent/WO1995018307A1/fr active IP Right Grant
- 1994-12-21 US US08/640,797 patent/US5759015A/en not_active Expired - Lifetime
- 1994-12-21 DE DE69410487T patent/DE69410487T2/de not_active Expired - Lifetime
- 1994-12-21 SG SG1996007796A patent/SG44800A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
US5759015A (en) | 1998-06-02 |
AU1118095A (en) | 1995-07-17 |
WO1995018307A1 (fr) | 1995-07-06 |
DE69410487T2 (de) | 1998-11-05 |
SG44800A1 (en) | 1997-12-19 |
DE69410487D1 (de) | 1998-06-25 |
CA2179063C (en) | 2005-02-15 |
CA2179063A1 (en) | 1995-07-06 |
JPH09507279A (ja) | 1997-07-22 |
AU681470B2 (en) | 1997-08-28 |
EP0737273A1 (de) | 1996-10-16 |
JP3718724B2 (ja) | 2005-11-24 |
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