US20090097995A1 - Syringe pump - Google Patents
Syringe pumpDownload PDFInfo
- Publication number
- US20090097995A1 US20090097995A1US12/250,365US25036508AUS2009097995A1US 20090097995 A1US20090097995 A1US 20090097995A1US 25036508 AUS25036508 AUS 25036508AUS 2009097995 A1US2009097995 A1US 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
- 239000007788liquidSubstances0.000claimsabstractdescription8
- 239000000843powderSubstances0.000claimsabstractdescription8
- 239000000565sealantSubstances0.000claimsdescription3
- 239000012530fluidSubstances0.000abstractdescription12
- 239000000126substanceSubstances0.000description2
- 241000256247Spodoptera exiguaSpecies0.000description1
- 238000007792additionMethods0.000description1
- 230000002542deteriorative effectEffects0.000description1
- 238000004519manufacturing processMethods0.000description1
- 238000000034methodMethods0.000description1
- 238000012986modificationMethods0.000description1
- 230000004048modificationEffects0.000description1
- 238000006467substitution reactionMethods0.000description1
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 inventionrelates 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 pumpuses 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 systemis used to supply a precise quantity of chemical solution in a laboratory or medical substance as a medical instrument.
- a stepping motoris generally used as a driving means for controlling the movement of a piston.
- the conventional fixed quantity feeder systemhas 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 systemmay sometimes cause vibration or resonance at certain frequency, thereby deteriorating the function of supplying a fixed quantity fluid.
- the present inventionhas 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 pumpcapable 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 pumpcomprising 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 actuatormay comprise a piezoelectric motor constituted by piezoelectric mediums.
- FIG. 1is a sectional view of a syringe pump according to an embodiment of the present invention
- FIG. 2is an exploded perspective view showing a piston and an actuator of the syringe pump shown in FIG. 1 ;
- FIG. 3is a sectional view of a syringe pump according to another embodiment of the present invention.
- FIG. 4is an exploded perspective view showing a piston and an actuator of the syringe pump shown in FIG. 3 .
- FIG. 1is a sectional view of a syringe pump according to an embodiment of the present invention
- FIG. 2is an exploded perspective view showing a piston and an actuator of the syringe pump shown in FIG. 1 .
- FIG. 3is a sectional view of a syringe pump according to another embodiment of the present invention
- FIG. 4is an exploded perspective view showing a piston and an actuator of the syringe pump shown in FIG. 3 .
- the syringe pumpincludes a linear actuator 3 .
- the syringe pumpcomprises 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 2are 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 powderwill be referred to as fluid.
- the cylinder 1is 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 1further 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 4comprises 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 4are 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 motoris 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 2includes 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. 2can move the piston 2 by moving by itself.
- FIG. 3 and FIG. 4Another method for achieving connection between the piston 2 and the linear actuator 3 is illustrated in FIG. 3 and FIG. 4 .
- a rod 5may be additionally mounted between the piston 2 and the linear actuator 3 .
- the rod 5is 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 inventioncan also be easily adopted in existing syringe pumps.
- connection protrusion 51having 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 2is 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 2are 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 ais 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 3may 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 pistoncan be performed more precisely by intermittently supplying power to a linear actuator.
- quantity of fluid taken in and out of a cylindercan be precisely controlled.
- the piezoelectric linear motoris used as a linear actuator for operating the piston, the syringe pump can be achieved in a compacter size.
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- 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)
Abstract
Description
- 1. Technical Field
- 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.
- Especially, 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.
- 2. Description of the Related Art
- Generally, 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.
- In such a fixed quantity feeder system, a stepping motor is generally used as a driving means for controlling the movement of a piston.
- However, 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.
- In addition, 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.
- Therefore, 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.
- Especially, it is another object of the present invention to provide 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.
- More preferably, it is yet another object of the present invention to provide a syringe pump, capable of reducing the whole size of the pump by using the piezoelectric linear motor as a linear actuator.
- In accordance with an aspect of the present invention, there is provided 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.
- In addition, the piezoelectric linear actuator may comprise a piezoelectric motor constituted by piezoelectric mediums.
- The above and other objects, features and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
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 inFIG. 1 ;FIG. 3 is a sectional view of a syringe pump according to another embodiment of the present invention; andFIG. 4 is an exploded perspective view showing a piston and an actuator of the syringe pump shown inFIG. 3 .- Hereinafter, an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings such that those who are skilled in the art can easily understand and implement the present invention.
FIG. 1 is a sectional view of a syringe pump according to an embodiment of the present invention, andFIG. 2 is an exploded perspective view showing a piston and an actuator of the syringe pump shown inFIG. 1 .FIG. 3 is a sectional view of a syringe pump according to another embodiment of the present invention, andFIG. 4 is an exploded perspective view showing a piston and an actuator of the syringe pump shown inFIG. 3 .- As shown in the drawings, the syringe pump includes a
linear actuator 3. - More specifically, the syringe pump according to the embodiment of the present invention comprises a
cylinder 1 which includes a receiving space, apiston 2 which is mounted in thecylinder 1 to move liquid or powder in and out with respect to thecylinder 1, and alinear motor 3 which moves thepiston 2 in a reciprocating motion. - In the above-structured syringe pump with the piezoelectric linear motor, the
cylinder 1 and thepiston 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. - That is, the
cylinder 1 is formed as a tube holding areceiving space 1afor receiving the fluid. As shown inFIG. 1 andFIG. 3 , one end of thecylinder 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 aneedle 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, aneedle 4 is removably connected to theneedle connection part 11. - As shown in
FIGS. 1 and 3 , theneedle 4 comprises alongitudinal fluid hole 4ahaving a very small diameter, and apiston connection part 41 fixed to theneedle connection part 11. - The
above cylinder 1 andneedle 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 thelinear 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 thepiston 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.
- In the above structure, as shown in
FIG. 1 andFIG. 2 , thepiston 2 includes a connection recess21 having a spherical shape for connection with aconnection protrusion 31 having a spherical shape formed on a bottom surface of thelinear actuator 3, so that thelinear actuator 3 can be directly connected with thepiston 2. - In a case where the
piston 2 is thus directly connected to thelinear actuator 3, thepiston 2 is moved as thelinear actuator 3 moves along an inner wall of thecylinder 1. - In other words, the
linear actuator 3 shown inFIG. 1 andFIG. 2 can move thepiston 2 by moving by itself. - Another method for achieving connection between the
piston 2 and thelinear actuator 3 is illustrated inFIG. 3 andFIG. 4 . - As shown in the drawings, a
rod 5 may be additionally mounted between thepiston 2 and thelinear actuator 3. - More specifically, as shown in
FIG. 3 andFIG. 4 , therod 5 is used to connect thepiston 2 to thelinear actuator 3 and therefore, thepiston 2 is moved as therod 5 is moved up and down by the operation of thelinear actuator 3. That is, thelinear actuator 3 pushes therod 5, while being fixed to the inner wall of thecylinder 1. - Furthermore, when the
piston 2 is connected thus using therod 5, thelinear actuator 3 used in the embodiment of the present invention can also be easily adopted in existing syringe pumps. - As shown in the drawings, a
connection protrusion 51 having a spherical shape is formed at an end of therod 5, facing thepiston 2 so as to connect therod 5 with thepiston 2. In addition, thepiston 2 is formed with the connection recess21 of a spherical shape for force-fit with theconnection protrusion 51. - Thus, since connection parts of the
rod 5 and thepiston 2 are structured in the form of the spherical protrusion and the spherical recess, respectively, thepiston 2 can be moved vertically in thecylinder 1 even when therod 5 is inclined to a certain direction. - In addition, a
sealant member 2ais mounted around the outer circumference of thepiston 2 to prevent leakage of the fluid through a gap between thepiston 2 and thecylinder 1. - In the above-structured syringe pump, 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. - As can be appreciated from the above description, in accordance with a syringe pump according to the embodiment of the present invention, control of a moving distance of a piston can be performed more precisely by intermittently supplying power to a linear actuator. As a result, quantity of fluid taken in and out of a cylinder can be precisely controlled.
- Especially, since the piezoelectric linear motor is used as a linear actuator for operating the piston, the syringe pump can be achieved in a compacter size.
- Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.
Claims (10)
1. 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.
2. The syringe pump according toclaim 1 , wherein the piezoelectric linear actuator comprises a piezoelectric linear motor performing a linear motion.
3. The syringe pump according toclaim 1 , further comprising a rod mounted between the piston and the linear actuator.
4. The syringe pump according toclaim 2 , further comprising a rod mounted between the piston and the linear actuator.
5. The syringe pump according toclaim 3 , wherein the rod includes a connection protrusion formed in a spherical shape on a surface thereof facing the piston, and the piston includes a connection recess formed in a spherical shape and ball-jointed with the connection protrusion.
6. The syringe pump according toclaim 4 , wherein the rod includes a connection protrusion formed in a spherical shape on a surface thereof facing the piston, and the piston includes a connection recess formed in a spherical shape and ball-jointed with the connection protrusion.
7. The syringe pump according toclaim 5 , further comprising a sealant member mounted around the outer circumference of the piston.
8. The syringe pump according toclaim 6 , further comprising a sealant member mounted around the outer circumference of the piston.
9. The syringe pump according toclaim 7 , further comprising:
a needle connection part having a small diameter, being disposed an inlet and outlet end; and
a needle removably connected to the needle connection part.
10. The syringe pump according toclaim 8 , further comprising:
a needle connection part having a small diameter, being disposed an inlet and outlet end; and
a needle removably connected to the needle connection part.
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 |
|---|---|
| US20090097995A1true US20090097995A1 (en) | 2009-04-16 |
Family
ID=40534399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US12/250,365AbandonedUS20090097995A1 (en) | 2007-10-15 | 2008-10-13 | Syringe pump |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20090097995A1 (en) |
| EP (1) | EP2065062A1 (en) |
| JP (1) | JP2009097516A (en) |
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 (en) | 2010-07-15 | 2012-06-10 | Андрей Леонидович Кузнецов | Piezoelectric pump |
| CN105247338B (en)* | 2013-03-15 | 2018-11-27 | X射线光学系统公司 | Heterogeneous sample processing equipment and its application in X-ray analyzer |
| JP2015226578A (en)* | 2014-05-30 | 2015-12-17 | 株式会社 ユニフローズ | Syringe |
| RU2667476C2 (en)* | 2016-12-05 | 2018-09-20 | Общество с Ограниченной Ответственностью "РЭНК" ООО "РЭНК" | Stepper piezoelectric motor |
| RU2715881C2 (en)* | 2017-07-26 | 2020-03-05 | Общество с Ограниченной Ответственностью "ДИНАМИЧЕСКИЙ УРОВЕНЬ" (ООО "ДИНАМИЧЕСКИЙ УРОВЕНЬ") | Stepping piezoelectric motor |
| RU2715880C2 (en)* | 2017-07-26 | 2020-03-05 | Общество с Ограниченной Ответственностью "ДИНАМИЧЕСКИЙ УРОВЕНЬ" (ООО "ДИНАМИЧЕСКИЙ УРОВЕНЬ") | Stepping piezoelectric motor |
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- 2008
- 2008-10-13USUS12/250,365patent/US20090097995A1/ennot_activeAbandoned
- 2008-10-13EPEP08166474Apatent/EP2065062A1/ennot_activeWithdrawn
- 2008-10-15JPJP2008266599Apatent/JP2009097516A/enactivePending
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| 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 (en) | 2009-05-07 |
| EP2065062A1 (en) | 2009-06-03 |
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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 |