US20090097995A1 - Syringe pump - Google Patents
Syringe pump Download PDFInfo
- Publication number
- US20090097995A1 US20090097995A1 US12/250,365 US25036508A US2009097995A1 US 20090097995 A1 US20090097995 A1 US 20090097995A1 US 25036508 A US25036508 A US 25036508A US 2009097995 A1 US2009097995 A1 US 2009097995A1
- Authority
- US
- United States
- Prior art keywords
- piston
- syringe pump
- linear actuator
- pump according
- cylinder
- 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.)
- Abandoned
Links
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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/142—Pressure infusion, e.g. using pumps
- A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
- A61M5/1452—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/142—Pressure infusion, e.g. using pumps
- A61M5/14212—Pumping with an aspiration and an expulsion action
- A61M5/14216—Reciprocating piston type
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/02—General characteristics of the apparatus characterised by a particular materials
- A61M2205/0272—Electro-active or magneto-active materials
- A61M2205/0294—Piezoelectric materials
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
- A61M5/31515—Connection of piston with piston rod
Definitions
- the present invention relates to a syringe pump for suction and exhaustion of a fixed quantity, and more particularly to a syringe pump, which is capable of taking in and out a fixed quantity of liquid or powder (hereinafter, collectively referred to as “fluid”) more precisely by moving a piston using a linear actuator.
- the above syringe pump uses the linear actuator which applies linear motion of a piezoelectric motor in order to move the piston, such that suction and exhaustion of the fluid can be performed more precisely through controlling of power supply with respect to the piezoelectric linear motor.
- a fixed quantity feeder system is used to supply a precise quantity of chemical solution in a laboratory or medical substance as a medical instrument.
- a stepping motor is generally used as a driving means for controlling the movement of a piston.
- the conventional fixed quantity feeder system has such a complicated structure that manufacturing thereof is difficult. Furthermore, since the structure is hard to be in a compact size, handling of the system is inconvenient.
- the stepping motor conventionally applied in the fixed quantity feeder system may sometimes cause vibration or resonance at certain frequency, thereby deteriorating the function of supplying a fixed quantity fluid.
- the present invention has been made in view of the above problems, and it is an object of the present invention to provide a syringe pump, capable of controlling movement of a piston more precisely.
- a syringe pump capable of controlling a moving distance of a piston more precisely by intermittently supplying power to a linear actuator that moves the piston, and accordingly precisely controlling quantity of fluid being taken in and out of a cylinder.
- a syringe pump comprising a cylinder which includes a receiving space, a piston which is mounted in the cylinder to pump liquid or powder in and out of the cylinder, and a piezoelectric linear actuator which moves the piston in a reciprocating manner.
- the piezoelectric linear actuator may comprise a piezoelectric motor constituted by piezoelectric mediums.
- FIG. 1 is a sectional view of a syringe pump according to an embodiment of the present invention
- FIG. 2 is an exploded perspective view showing a piston and an actuator of the syringe pump shown in FIG. 1 ;
- FIG. 3 is a sectional view of a syringe pump according to another embodiment of the present invention.
- FIG. 4 is an exploded perspective view showing a piston and an actuator of the syringe pump shown in FIG. 3 .
- FIG. 1 is a sectional view of a syringe pump according to an embodiment of the present invention
- FIG. 2 is an exploded perspective view showing a piston and an actuator of the syringe pump shown in FIG. 1 .
- FIG. 3 is a sectional view of a syringe pump according to another embodiment of the present invention
- FIG. 4 is an exploded perspective view showing a piston and an actuator of the syringe pump shown in FIG. 3 .
- the syringe pump includes a linear actuator 3 .
- the syringe pump comprises a cylinder 1 which includes a receiving space, a piston 2 which is mounted in the cylinder 1 to move liquid or powder in and out with respect to the cylinder 1 , and a linear motor 3 which moves the piston 2 in a reciprocating motion.
- the cylinder 1 and the piston 2 are used to take in certain liquid or micro powder and exhaust the liquid or powder to a desired place, having a similar structure with a syringe.
- the liquid and powder will be referred to as fluid.
- the cylinder 1 is formed as a tube holding a receiving space 1 a for receiving the fluid. As shown in FIG. 1 and FIG. 3 , one end of the cylinder 1 is totally open while the other end is sealed but having an inlet and outlet hole to let the fluid move in and out.
- the cylinder 1 further includes a needle connection part 11 having a small diameter at the inlet and outlet hole such that the fluid can be supplied to or taken in from a narrow space as desired. Additionally, a needle 4 is removably connected to the needle connection part 11 .
- the needle 4 comprises a longitudinal fluid hole 4 a having a very small diameter, and a piston connection part 41 fixed to the needle connection part 11 .
- the above cylinder 1 and needle 4 are structured in substantially the same manner as those of a general syringe. Therefore, the structure of the present invention can be achieved by adding a piston which includes the linear actuator 3 to the general conventional syringe.
- the linear actuator 3 constituting the syringe pump, as shown in the drawings, is preferably implemented by a piezoelectric linear motor in order to reciprocate the piston 2 .
- the piezoelectric linear motor is a sort of motor that applies the principle in that a piezoelectric element contracts and expands according to power supply. As shown in the drawings, the piezoelectric linear motor includes a plurality of legs extending and contracting in a certain direction like a motion of an inchworm in accordance with power supply, thereby moving by itself or moving other parts in a pushing manner. Since the piezoelectric linear motor is generally known and applied in the art, detailed description thereof will be omitted herein.
- the piston 2 includes a connection recess 21 having a spherical shape for connection with a connection protrusion 31 having a spherical shape formed on a bottom surface of the linear actuator 3 , so that the linear actuator 3 can be directly connected with the piston 2 .
- the linear actuator 3 shown in FIG. 1 and FIG. 2 can move the piston 2 by moving by itself.
- FIG. 3 and FIG. 4 Another method for achieving connection between the piston 2 and the linear actuator 3 is illustrated in FIG. 3 and FIG. 4 .
- a rod 5 may be additionally mounted between the piston 2 and the linear actuator 3 .
- the rod 5 is used to connect the piston 2 to the linear actuator 3 and therefore, the piston 2 is moved as the rod 5 is moved up and down by the operation of the linear actuator 3 . That is, the linear actuator 3 pushes the rod 5 , while being fixed to the inner wall of the cylinder 1 .
- the linear actuator 3 used in the embodiment of the present invention can also be easily adopted in existing syringe pumps.
- connection protrusion 51 having a spherical shape is formed at an end of the rod 5 , facing the piston 2 so as to connect the rod 5 with the piston 2 .
- the piston 2 is formed with the connection recess 21 of a spherical shape for force-fit with the connection protrusion 51 .
- connection parts of the rod 5 and the piston 2 are structured in the form of the spherical protrusion and the spherical recess, respectively, the piston 2 can be moved vertically in the cylinder 1 even when the rod 5 is inclined to a certain direction.
- a sealant member 2 a is mounted around the outer circumference of the piston 2 to prevent leakage of the fluid through a gap between the piston 2 and the cylinder 1 .
- the linear actuator 3 may have various modified configurations according to the present invention. Also, the embodiment is illustrated in the drawings only by way of example, but does not limit the present invention.
- control of a moving distance of a piston can be performed more precisely by intermittently supplying power to a linear actuator.
- quantity of fluid taken in and out of a cylinder can be precisely controlled.
- the piezoelectric linear motor is used as a linear actuator for operating the piston, the syringe pump can be achieved in a compacter size.
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (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)
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20070103742 | 2007-10-15 | ||
KR10-2007-0103742 | 2007-10-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20090097995A1 true US20090097995A1 (en) | 2009-04-16 |
Family
ID=40534399
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/250,365 Abandoned US20090097995A1 (en) | 2007-10-15 | 2008-10-13 | Syringe pump |
Country Status (3)
Country | Link |
---|---|
US (1) | US20090097995A1 (ja) |
EP (1) | EP2065062A1 (ja) |
JP (1) | JP2009097516A (ja) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110216013A1 (en) * | 2010-03-05 | 2011-09-08 | Sony Ericsson Mobile Communications Ab | Touch-sensitive input device, touch screen device, mobile device and method for operating a touch-sensitive input device |
WO2011120587A1 (en) | 2010-04-01 | 2011-10-06 | AlpiMed Sàrl | Inductively operated fluid dispensing device |
US8403888B2 (en) | 2010-04-15 | 2013-03-26 | Teneo Innovations Inc. | Device and electronic controller for syringe piston control |
US20140051564A1 (en) * | 2011-03-29 | 2014-02-20 | Emd Millipore Corporation | Method and device for centrifugation and filtration |
US20160243308A1 (en) * | 2013-10-07 | 2016-08-25 | Sio2 Medical Products, Inc. | Convertible plungers, film coated plungers and related syringe assemblies |
US20180060362A1 (en) * | 2016-08-30 | 2018-03-01 | Oracle International Corporation | Method and system for implementing distributed lobs |
US10918800B2 (en) | 2016-05-31 | 2021-02-16 | Sio2 Medical Products, Inc. | Convertible plungers and methods for assembling the same in a medical barrel |
WO2022039926A1 (en) * | 2020-08-19 | 2022-02-24 | Portal Instruments, Inc. | Shuttle nib for control stopper during injection |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2452872C2 (ru) * | 2010-07-15 | 2012-06-10 | Андрей Леонидович Кузнецов | Пьезоэлектрический насос |
EP2972183B1 (en) * | 2013-03-15 | 2022-09-14 | X-Ray Optical Systems, Inc. | Non-homogeneous sample handling apparatus and x-ray analyzer applications thereof |
JP2015226578A (ja) * | 2014-05-30 | 2015-12-17 | 株式会社 ユニフローズ | シリンジ |
RU2667476C2 (ru) * | 2016-12-05 | 2018-09-20 | Общество с Ограниченной Ответственностью "РЭНК" ООО "РЭНК" | Шаговый пьезоэлектрический двигатель |
RU2715881C2 (ru) * | 2017-07-26 | 2020-03-05 | Общество с Ограниченной Ответственностью "ДИНАМИЧЕСКИЙ УРОВЕНЬ" (ООО "ДИНАМИЧЕСКИЙ УРОВЕНЬ") | Шаговый пьезодвигатель |
RU2715880C2 (ru) * | 2017-07-26 | 2020-03-05 | Общество с Ограниченной Ответственностью "ДИНАМИЧЕСКИЙ УРОВЕНЬ" (ООО "ДИНАМИЧЕСКИЙ УРОВЕНЬ") | Пьезоэлектрический двигатель шагового типа |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020025260A1 (en) * | 2000-07-10 | 2002-02-28 | Teruo Maruyama | Fluid discharge apparatus and fluid discharge method |
US20050100457A1 (en) * | 2000-01-26 | 2005-05-12 | Dl Technology, Llc | System and method for control of fluid dispense pump |
US6981854B1 (en) * | 2003-06-05 | 2006-01-03 | Chemilizer Products, Inc. | Small piston pump |
US20070110599A1 (en) * | 2003-09-13 | 2007-05-17 | Danfoss A/S | Plunger piston compressor for refrigerants |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3902084A (en) * | 1974-05-30 | 1975-08-26 | Burleigh Instr | Piezoelectric electromechanical translation apparatus |
US5928202A (en) * | 1997-10-23 | 1999-07-27 | Bristol-Myers Sauibb Company | Preloadable syringe for automated dispensing device |
US20050277887A1 (en) * | 2000-05-08 | 2005-12-15 | Joel Douglas | Micro infusion drug delivery device |
US6380661B1 (en) * | 2000-06-05 | 2002-04-30 | Burleigh Instruments, Inc. | Linear incremental bi-directional motor |
US20050015057A1 (en) * | 2002-11-28 | 2005-01-20 | Soren Steenfeldt-Jensen | Cylindrical piston press foot |
US7170214B2 (en) * | 2003-09-08 | 2007-01-30 | New Scale Technologies, Inc. | Mechanism comprised of ultrasonic lead screw motor |
US20070129681A1 (en) * | 2005-11-01 | 2007-06-07 | Par Technologies, Llc | Piezoelectric actuation of piston within dispensing chamber |
-
2008
- 2008-10-13 EP EP08166474A patent/EP2065062A1/en not_active Withdrawn
- 2008-10-13 US US12/250,365 patent/US20090097995A1/en not_active Abandoned
- 2008-10-15 JP JP2008266599A patent/JP2009097516A/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050100457A1 (en) * | 2000-01-26 | 2005-05-12 | Dl Technology, Llc | System and method for control of fluid dispense pump |
US20020025260A1 (en) * | 2000-07-10 | 2002-02-28 | Teruo Maruyama | Fluid discharge apparatus and fluid discharge method |
US6981854B1 (en) * | 2003-06-05 | 2006-01-03 | Chemilizer Products, Inc. | Small piston pump |
US20070110599A1 (en) * | 2003-09-13 | 2007-05-17 | Danfoss A/S | Plunger piston compressor for refrigerants |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110216013A1 (en) * | 2010-03-05 | 2011-09-08 | Sony Ericsson Mobile Communications Ab | Touch-sensitive input device, touch screen device, mobile device and method for operating a touch-sensitive input device |
US8789727B2 (en) | 2010-04-01 | 2014-07-29 | Alpimed Sarl | Inductively operated fluid dispensing device |
WO2011120587A1 (en) | 2010-04-01 | 2011-10-06 | AlpiMed Sàrl | Inductively operated fluid dispensing device |
US8403888B2 (en) | 2010-04-15 | 2013-03-26 | Teneo Innovations Inc. | Device and electronic controller for syringe piston control |
US9566540B2 (en) * | 2011-03-29 | 2017-02-14 | Emd Millipore Corporation | Method and device for centrifugation and filtration |
US20140051564A1 (en) * | 2011-03-29 | 2014-02-20 | Emd Millipore Corporation | Method and device for centrifugation and filtration |
US20160243308A1 (en) * | 2013-10-07 | 2016-08-25 | Sio2 Medical Products, Inc. | Convertible plungers, film coated plungers and related syringe assemblies |
US10561795B2 (en) * | 2013-10-07 | 2020-02-18 | Sio2 Medical Products, Inc. | Convertible plungers, film coated plungers and related syringe assemblies |
US10918800B2 (en) | 2016-05-31 | 2021-02-16 | Sio2 Medical Products, Inc. | Convertible plungers and methods for assembling the same in a medical barrel |
US11896807B2 (en) | 2016-05-31 | 2024-02-13 | Sio2 Material Products, Inc | Convertible plungers and methods for assembling the same in a medical barrel |
US20180060362A1 (en) * | 2016-08-30 | 2018-03-01 | Oracle International Corporation | Method and system for implementing distributed lobs |
US11907251B2 (en) * | 2016-08-30 | 2024-02-20 | Oracle International Corporation | Method and system for implementing distributed lobs |
WO2022039926A1 (en) * | 2020-08-19 | 2022-02-24 | Portal Instruments, Inc. | Shuttle nib for control stopper during injection |
US11786666B2 (en) | 2020-08-19 | 2023-10-17 | Portal Instruments, Inc. | Shuttle nib for control of stopper during injection |
Also Published As
Publication number | Publication date |
---|---|
JP2009097516A (ja) | 2009-05-07 |
EP2065062A1 (en) | 2009-06-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20090097995A1 (en) | Syringe pump | |
US20080304979A1 (en) | Reaction Drive Energy Transfer Device | |
US10153420B2 (en) | Strain amplification structure and synthetic jet actuator | |
RU2011154213A (ru) | Гидравлический дисковый насос | |
CN104956199B (zh) | 用于液相色谱法的泵和注射阀 | |
JP2006194181A (ja) | ダイアフラムポンプ | |
US7325478B2 (en) | High pressure low volume pump | |
Henderson | Novel piezo motor enables positive displacement microfluidic pump | |
EP1213479B1 (en) | High pressure low volume pump | |
JP5028624B2 (ja) | ポンプ | |
AU2002219963A1 (en) | High pressure low volume pump | |
CN216975182U (zh) | 双谐振柱塞泵 | |
JP6174776B1 (ja) | 塗布液供給装置 | |
JP2010144616A (ja) | ローリングダイヤフラムポンプ | |
JP2006219986A (ja) | 振動式圧縮機 | |
CN210239922U (zh) | 注液泵 | |
JP2007330702A (ja) | 搾乳器 | |
JPH0381585A (ja) | 圧電ポンプ | |
JP2008284441A (ja) | 液剤滴下装置 | |
JP2018021503A (ja) | 往復動ポンプ | |
US7600440B2 (en) | Air displacement apparatus for use with a fluid transfer device | |
JP4970661B2 (ja) | サックバックバルブ | |
JPH05346105A (ja) | マイクロアクチュエータ | |
JP2006226832A (ja) | 分注ヘッドおよび分注ヘッドを用いた分注装置 | |
CN216975181U (zh) | 推拉谐振泵 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: KOREA INSTITUTE OF MACHINERY & MATERIALS, KOREA, D Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HAM, YOUNG-BOG;PARK, JUNG-HO;YUN, SO-NAM;AND OTHERS;REEL/FRAME:021675/0446 Effective date: 20080922 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |