EP3571406A1 - Method to use and control a device for filling containers, and filling device - Google Patents
Method to use and control a device for filling containers, and filling deviceInfo
- Publication number
- EP3571406A1 EP3571406A1 EP18700510.3A EP18700510A EP3571406A1 EP 3571406 A1 EP3571406 A1 EP 3571406A1 EP 18700510 A EP18700510 A EP 18700510A EP 3571406 A1 EP3571406 A1 EP 3571406A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fluid
- rotating roller
- delivered
- flexible tube
- exit
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000012530 fluid Substances 0.000 claims abstract description 117
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 47
- 238000012384 transportation and delivery Methods 0.000 claims abstract description 36
- 238000007906 compression Methods 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 9
- 230000004044 response Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 description 55
- 239000007788 liquid Substances 0.000 description 9
- 230000000875 corresponding effect Effects 0.000 description 5
- 230000001052 transient effect Effects 0.000 description 5
- 239000003814 drug Substances 0.000 description 4
- 230000036541 health Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229940079593 drug Drugs 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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
- F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
-
- 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
- F04B43/0009—Special features
- F04B43/0081—Special features systems, control, safety measures
-
- 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
- F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
- F04B43/1238—Machines, pumps, or pumping installations having flexible working members having peristaltic action using only one roller as the squeezing element, the roller moving on an arc of a circle during squeezing
-
- 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
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
Definitions
- Embodiments of the present invention concern a method to define the precise and accurate delivery of predefined quantities of fluid into containers in relation to a filling device comprising a peristaltic pump.
- the present invention also concerns a filling device using said method to use and control the delivery in succession of precise and accurate quantities of fluid to fill containers.
- the filling device according to the present invention is applied particularly, but not restrictively, in the pharmaceutical or health sector, and in any case in any condition where defined and controlled quantities of fluid products are to be delivered, advantageously in succession, into suitable containers, even of minimum values.
- Some applications provide continuous delivery for the administration of medicines in liquid form to a patient.
- document US-A-2015/0037168 (US' 168) describes a deliverer for the continuous delivery of a constant flow of liquid medicines which is provided with a mono-roller peristaltic pump in which there is a flexible tube with an adjacent segment of its entrance and exit ends.
- this solution is intended to manage the delivery of a limited quantity of a medicine in a patient with a constant flow.
- the deliverer described in US' 168 provides to increase the rotation speed of the roller when it acts on the adjacent segment, since in some specific conditions, that is, far from the transients, the increase in the rotation speed of the roller allows to continuously deliver a quantity of medicine with a constant flow.
- Known peristaltic pumps normally have a flexible tube inserted into a cylindrical containing structure, containing a pressing element, normally planetary rollers, rotating around the same axis.
- the axis is central to the cylindrical containing structure, and the pressing element, rotating on its own axis, presses against a flexible tube disposed on at least part of the internal perimeter of the cylindrical containing structure, and inside which there is the fluid to be delivered.
- the entrance and exit of the flexible tube from the cylindrical containing structure normally conform to a U-shaped disposition.
- the prior art documents US-A-2005/0047925 and US-A-2015/0013825 describe two peristaltic pumps having a U-shaped flexible tube with a plurality of planetary rollers.
- peristaltic pumps require frequent maintenance because, as the result of the multiple compressions exerted by the planetary rollers on the flexible tube, the latter tends on the one hand to wear, and on the other hand it tends to age before time on the pressing side, and can even deform and/or be irreversibly damaged.
- Known peristaltic pumps also exist in which the flexible tube, is shaped like a " ⁇ " (Greek letter gamma), instead of being U-shaped. In this conformation, the flexible tube has an adjacent segment in which portions of the entrance and exit extensions are located substantially adjacent and opposite one another.
- the peristaltic pump described in US '825 requires that the rollers are repositioned in the initial position on each occasion and with each delivery, in order to obtain the initial configuration of the peristaltic pump, so that the latter can deliver, with every repetition, the desired quantity of fluid starting from the same initial configuration.
- Known peristaltic pumps have the pressing element that can consist of a roller, two opposite rollers, an orbital lobe, etc.
- peristaltic pumps if used for functions of transferring fluids that have to be controlled at least in volume, create many difficulties with regard to an accurate control.
- the pressing element works simultaneously, and sometimes not uniformly, on both extensions of the flexible tube, where the pressing element also acts in the adjacent segment of the flexible tube with entrance and exit transients that are not uniform and do not correspond to the characteristics of the remaining part of the flexible tube.
- the pressing element temporarily stops at any angular position whatsoever, also randomly, where the peristaltic pump has to be able to deliver quantities of fluid in sequence, but not uniform.
- the purpose of the present invention is to obtain a method to use and control a filling device comprising a peristaltic pump in which there is an adjacent segment of the entrance and the exit extensions of the tube, and in which an accurate control is required of the quantity delivered, said quantity being repeated and able to vary over time, or with precise frequencies.
- the method allows to deliver precise and accurate quantities of fluid, even minimal, ensuring the constancy of the volume of fluid delivered both over time and also during the transient when the pressing element is acting on the adjacent segment.
- Another purpose of the present invention is to provide a filling device that uses the control method to deliver defined and precise quantities of fluid, also for filling containers in succession.
- the Applicant has devised, tested and embodied the present invention to overcome the shortcomings of the state of the art and to obtain these and other purposes and advantages.
- the present invention concerns a method to use and control a device for filling containers with predefined quantities of fluid delivered discretely into each container by means of a peristaltic pump selectively activated to perform a cycle of filling a container.
- the peristaltic pump can comprise a containing structure with a cylindrical chamber in which a flexible tube is circumferentially disposed, provided with an entrance extension connectable to a power source and with an exit extension with an exit for the delivery of the fluid.
- the flexible tube has a circumferential segment that defines an adjacent segment of at least part of the entrance extension with the exit extension.
- the peristaltic pump can comprise a single rotating roller able to progressively compress the flexible tube for a desired angle value, along a circumferential path, in order to convey discretely predefined quantities of the fluid.
- peristaltic pump is selectively started and stopped for each container to be filled with the desired quantity.
- the flexible tube has an adjacent segment of at least part of its entrance and exit extensions, and is configured as a gamma shape " ⁇ ".
- the flexible tube is functionally associated with a pressing element able to progressively and continuously compress the flexible tube for the desired circumferential path determined by the expected flow rate, in order to transfer a defined and precise quantity of fluid from the entrance end to the delivery end of the flexible tube itself.
- the pressing element can deliver the required quantity of fluid, passing through a portion of the flexible tube, or one or more circuits of the flexible tube, even incomplete ones and/or a part of the adjacent segment.
- the use and control method provides:
- This aspect achieves an efficient and continuous control of the quantity actually delivered by the peristaltic pump, which allows to manage the functioning of the latter until the volume to be delivered into each container is reached.
- the detection can be carried out by a sensor, such as a weight sensor, a level sensor, a presence sensor, or other sensor suitable to detect the instantaneous quantity of fluid delivered.
- a sensor such as a weight sensor, a level sensor, a presence sensor, or other sensor suitable to detect the instantaneous quantity of fluid delivered.
- the use and control method can provide to process the total volume of the fluid to be delivered in relation to the starting position of the rotating roller and to command the rotating roller along the circumferential path defined between the starting and stopping positions of the rotating roller corresponding to the specific total volume of the fluid to be delivered.
- the sectors can be uniform, or differentiated, and can also be sized according to the minimum tolerance admitted both in relation to the quantity of fluid to be delivered and in absolute terms.
- the use and control method allows to deliver quantities of fluid also considering portions of sector in relation to the volume of fluid to be completed.
- the method can provide to drive the rotating roller by a movement member subjected to a control and command unit in order to define, on each occasion, the specific angular position of the rotating roller.
- the angular speed of the rotating roller can be constant.
- the angular speed of the rotating roller can be variable continuously or between one delivery and the next.
- the determination of the volumes can be obtained by applying a functional relation that combines one or more chemical- physical characteristics of the fluid chosen from a group comprising viscosity, response to compression, the properties of adhesion to a surface and the sliding properties inside the flexible tube, with one or more structural characteristics of the peristaltic pump chosen from a group comprising the response to the compression of the flexible tube, its disposition in the cylindrical chamber, the thickness of its walls, and the diameter of the channel where the fluid passes.
- the present invention concerns a filling device of a peristaltic pump to fill containers with predefined quantities of fluid delivered discretely into each container, comprising a peristaltic pump selectively activated to perform a cycle of filling a container.
- the peristaltic pump can comprise a containing structure with a cylindrical chamber in which a flexible tube is circumferentially disposed, provided with an entrance extension connectable to a power source, and with an exit extension with an exit for the delivery of the fluid, wherein the flexible tube has a circumferential segment that defines an adjacent segment of at least part of the entrance extension with the exit extension, said peristaltic pump comprising a single rotating roller able to progressively compress the flexible tube for a desired angle value, along a circumferential path, in order to convey discretely predefined quantities of fluid.
- the filling device comprises:
- a processing unit configured to determine the volumes of fluid contained in sectors defined sequentially by angular segments of the flexible tube, including the adjacent segment, between the initial contact of the rotating roller and the exit of the exit extension;
- a memorization unit configured to record, for every predefined quantity of fluid to be delivered, the circumferential starting and stopping position of the rotating roller, wherein the predefined quantity to be delivered into each container corresponds to the sum of the volumes contained in a number of sectors and/or in angular portions of the latter, affected by the rotating roller;
- control and command unit configured to selectively activate the rotating roller to deliver in succession the predefined quantity of fluid into the containers in relation to the circumferential starting position of the rotating roller; the control and command unit being configured to control the quantity of fluid delivered into each container, comparing the instantaneous quantity detected by the sensor with the predefined quantity to be delivered in order to deactivate the rotating roller when the predefined quantity to be delivered is reached.
- the senor can be a weight sensor, such as a load cell for example.
- control and command unit can be configured to determine the circumferential path defined between the starting and stopping positions of the rotating roller corresponding to the specific total volume of fluid to be delivered.
- the rotating roller can be configured to proceed at a constant angular speed.
- the rotating roller can be configured to proceed at an angular speed that is variable continuously or between one delivery and the next.
- the control and command unit is intended to command the pressing element in relation to its position in a coordinated manner with its defined and accurate volumes to be delivered on each occasion.
- - fig. 1 schematically shows a peristaltic pump according to a possible embodiment of the present invention
- - figs. 2-3 show a detail of fig. 1 with a pressing element operating in the initial and final position of the adjacent segment of the flexible tube;
- - fig. 4 shows figs. 2 and 3 overlapping with the sectors of the adjacent segment.
- Embodiments of the present invention concern a method to control a peristaltic pump 10 configured to deliver a desired quantity of a fluid 1 1 in a precise, accurate and controlled manner.
- the present invention allows controlled delivery of fluid 1 1 of any nature, even comprising different substances, and having various chemical-physical characteristics.
- fluid 11 refers, by way of example, to any fluid whose chemical-physical characteristics are known in relation to the specific needs of its use.
- the chemical-physical characteristics can be viscosity, response to compression, the properties of adhesion to a surface, or other properties related to the flow of the fluid inside a flexible tube.
- the delivery can be defined on each occasion, or repeated for a defined or definable number of times.
- Possible embodiments described using fig. 1 concern a filling device 100 for containers with predefined quantities of fluid 1 1 discretely delivered into each container comprising a peristaltic pump 10 which can be selectively activated to carry out a filling cycle of a container.
- the peristaltic pump 10 comprises a containing structure 12, having a cylindrical chamber 13 in which a flexible tube 14 is circumferentially disposed.
- the flexible tube 14 is connected on one side to a power source 15 and, on the other, to the delivery user device 16.
- the containing structure 12 can comprise, in relation to the openings where the flexible tube 14 enters and exits, suitable connections 17 configured to fluidically connect the flexible tube 14 to the power source 15 and/or to the delivery user device 16 through possible tubes or connection means 18.
- the power source 15 can comprise a deliverer, a container, or another type of source of fluid 1 1 provided with an opening 28 fluidically connected to the peristaltic pump 10.
- the delivery user device 16 can comprise, by way of example, a deliverer of fluid 1 1 or other similar element able to continuously and/or sequentially deliver one or more desired quantities of fluid 1 1 into a container, or other.
- the flexible tube 14 can have an internal diameter of any normal but known value, just as the characteristics of the constituent material are known.
- the flexible tube 14 is configured to convey a fluid 11 and has a circumferential segment 29 closed in a ring, obtaining an adjacent segment 19 of at least part of its entrance extension 20 with its exit extension 21.
- the flexible tube 14 is functionally associated with a pressing element 22 which acts progressively and continuously compressing the flexible tube 14 by a desired angle value, along a circumferential path, determined by the expected flow rate, in order to transfer a defined and precise quantity of fluid 1 1 from the input end 23 to the delivery end 24 of the flexible tube 14 itself.
- the pressing element 22 is a roller suitable for the purpose.
- the pressing element 22 can therefore comprise a single rotating roller.
- the pressing element 22 can comprise a plurality of rotating rollers, or an orbital lobe, or other.
- the pressing element 22 is driven by a motor member (not shown) which acts on a movement member 25, which is configured to allow the pressing element 22 to operate in a controlled manner along the circumferential section 29.
- the movement member 25 is subjected to a control and command unit 27 to define on each occasion the specific angular position and therefore the circumferential path of the pressing element 22.
- the rotary movement of the pressing element 22 is controlled angularly by the control and command unit 27 associated with an encoder system, or analogous system which makes it possible to accurately recognize the angular position of the pressing element 22 also in the transient when it operates in the adjacent segment 19.
- the pressing element 22 in the case where the pressing element 22 consists of a single roller, it will rotate around the axis of rotation 30 of the cylindrical chamber 13 of the containing structure 12.
- the flexible tube 14 is progressively and continuously compressed by the pressing element 22, so that the flexible tube 14 is gradually and continuously squeezed, causing the fluid 11 to advance downstream and aspirating the fluid 1 1 upstream.
- the pressing element 22 can deliver the quantity of fluid 1 1 required by passing through a portion of flexible tube 14, or one or more circuits thereof, also not complete and/or a part of the adjacent segment 19.
- the inventive idea therefore provides to identify the starting point and the end point of the perturbation created by the pressing element 22 on the adjacent segment 19 of the flexible tube 14.
- the sectors Si will be correlated to the degree of precision required in the flow of fluid 1 1.
- the sectors Si can be uniform, or differentiated, according to operational needs.
- the sectors Si can be sized according to the minimum tolerance allowed in relation to the quantity of fluid 1 1 to be delivered.
- the quantity of fluid 11 delivered can be precisely defined. According to possible embodiments, this definition can be theoretical and/or practical.
- the use and control method for a filling device 100 can provide to:
- the index i refers to the i-th sector (SI, S2, S3, ...) where the i-th volume (VI, V2, V3, ...) is contained.
- the use and control method can provide to continuously detect the volume of fluid 11 relating to the sum of the volumes Vi of the sectors Si progressively affected by the pressing element 22, to compare the total volume of fluid 11 displaced on each occasion with the volume of fluid 1 1 to be delivered, and to command the pressing element 22 to stop when the defined and precise volume of fluid to be delivered is reached.
- the use and control method can provide to process the total volume of fluid 11 to be delivered in relation to the starting position of the pressing element 22 and to command the pressing element 22 along a precise circumferential path defined according to the starting position and therefore according to the defined and precise volume of fluid to be delivered.
- the use and control method allows to deliver quantities of fluid 1 1 also from portions of sectors Si as a function of the volume of fluid 1 1 contained in the portion of sector Si.
- the pressing element 22 can deliver the required quantity of fluid 1 1 along at least a portion of the circumferential path.
- the plurality of sectors Si can be determined in relation to the flexible tube 14 and to the circumferential path explored on each occasion by the pressing element 22.
- the path can possibly comprise the adjacent portion 19 of the flexible tube 14, in which the flow rate of the fluid 11 at exit varies if not suitably controlled.
- the sectors Si can be defined as angular sectors explored by the pressing element 22.
- the determination of the volumes Vi of fluid 11 is obtained by applying a functional relation which, based on the chemical-physical characteristics of the fluid 1 1 and the structural characteristics of the peristaltic pump 10, that is, the characteristics of the flexible tube 14 and of how it is disposed in the cylindrical chamber 13, allows to precisely determine the quantity of fluid 1 1 contained in the individual sectors Si of the adjacent segment 19.
- the functional relation combines one or more chemical-physical characteristics of the fluid 11 chosen from a group comprising viscosity, response to compression, properties of adhesion to a surface, and the sliding properties inside the flexible tube 14; with one or more structural characteristics of the peristaltic pump 10 chosen from a group comprising the response to compression of the flexible tube 14, the disposition of the flexible tube 14 in the cylindrical chamber 13, the thickness of the walls of the flexible tube 14, and the diameter of the channel 26 of the flexible tube 14.
- the position of the pressing element 22 can be detected for example by means of a detection element 31 , such as for example an encoder associated therewith, for example, on the axis of rotation 30 of the movement member 25.
- the encoder can be comprised in the control and command unit 27.
- the angular speed of the pressing element 22 can be constant, or variable continuously or on each occasion.
- these operations are performed, controlled and managed by a control and command unit 27.
- the control and command unit 27 can be a microprocessor, or other electric and/or electronic device able to perform one or more of the operations described, possibly by dedicating parts or sub-units thereof to perform the individual operations for which the control and command unit 27 itself is configured.
- the filling device 100 can comprise:
- a processing unit 32 configured to determine the volumes Vi of fluid 1 1 contained in the sectors Si sequentially defined by angular segments of the flexible tube 14, including the adjacent segment 19, between the initial contact of the rotating roller 22 and the exit of the exit extension 21 ;
- a memorization unit 33 configured to record, for each predefined quantity of fluid 1 1 to be delivered, the circumferential starting and stopping position of the rotating roller 22, wherein the predefined quantity to be delivered into each container corresponds to the sum of the volumes Vi contained in a number of sectors Si and/or in angular portions thereof, affected by the rotating roller 22; - at least one sensor 34 to detect the instantaneous quantity of fluid 1 1 delivered;
- control and command unit 27 configured to selectively activate the rotating roller 22 to deliver in succession into the containers the predefined quantity of fluid 11 in relation to the circumferential starting position of the rotating roller 22; said control and command unit 27 being configured to compare the instantaneous quantity detected by the sensor 34 with the predefined quantity to be delivered in order to deactivate the rotating roller 22 when the predefined quantity to be delivered has been reached.
- the control and command unit 27 can be configured to determine the position of the pressing element 22 on each occasion, to process the volumes Vi of fluid 1 1 relating to the individual sectors Si affected by the pressing element 22 in rotation in relation to the circumferential path. According to possible embodiments, the control and command unit 27 is configured to continuously compare the volume of fluid 1 1 displaced on each occasion with the volume of fluid 1 1 to be delivered, and to command the pressing element 22 to stop when the defined and precise volume of fluid 1 1 to be delivered has been reached.
- control and command unit 27 can be configured to determine the circumferential path that the pressing element 22 has to perform to deliver the defined and precise volume of fluid 1 1 to be delivered.
- Formulations of the present invention also provide a peristaltic pump 10 comprising a control and command unit 27 to deliver precise and accurate quantities of fluid.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Reciprocating Pumps (AREA)
- Saccharide Compounds (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT102017000005714A IT201700005714A1 (en) | 2017-01-19 | 2017-01-19 | METHOD OF USE AND CONTROL OF A PERISTALTIC PUMP AND PERISTALTIC PUMP USING THIS METHOD. |
PCT/EP2018/051353 WO2018134375A1 (en) | 2017-01-19 | 2018-01-19 | Method to use and control a device for filling containers, and filling device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3571406A1 true EP3571406A1 (en) | 2019-11-27 |
EP3571406B1 EP3571406B1 (en) | 2020-11-04 |
Family
ID=58737739
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18700510.3A Active EP3571406B1 (en) | 2017-01-19 | 2018-01-19 | Method to use and control a device for filling containers, and filling device |
Country Status (7)
Country | Link |
---|---|
US (1) | US20190368477A1 (en) |
EP (1) | EP3571406B1 (en) |
JP (1) | JP7030124B2 (en) |
CN (1) | CN110446856B (en) |
ES (1) | ES2847413T3 (en) |
IT (1) | IT201700005714A1 (en) |
WO (1) | WO2018134375A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113007080B (en) * | 2021-03-05 | 2022-09-16 | 保定雷弗流体科技有限公司 | Peristaltic pump quantitative output control method and peristaltic pump control equipment |
CN113713209B (en) * | 2021-08-27 | 2022-06-07 | 四川大学华西医院 | High-precision analgesia pump and control method |
CN114109788B (en) * | 2021-11-10 | 2023-06-06 | 保定雷弗流体科技有限公司 | Peristaltic pump quantitative output control method |
CN114100973A (en) * | 2021-11-29 | 2022-03-01 | 安徽奥弗医疗设备科技股份有限公司 | Automatic rubber coating device of puncture ware sleeve pipe |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4227357A1 (en) * | 1992-08-19 | 1994-02-24 | Heidolph Elektro Gmbh & Co Kg | Flexible tube displacement pump with tube arranged in housing - has rotor assigned to pump tube which is rotated by drive organ and rotor is provided with number of rotor arms which with rotation of rotor successively depress tube |
US5954486A (en) * | 1997-07-01 | 1999-09-21 | Daiichi Techno Co., Ltd. | Squeeze pump having shrink fitter rollers |
JP2004092537A (en) | 2002-08-30 | 2004-03-25 | Hitachi Koki Co Ltd | Discharge quantity control device for peristaltic pump |
US7104769B2 (en) * | 2003-08-26 | 2006-09-12 | Hewlett-Packard Development Company, L.P. | Peristaltic pump and method with parking position |
JP5740950B2 (en) * | 2010-12-09 | 2015-07-01 | セイコーエプソン株式会社 | Fluid transport device and fluid transport method |
ITMI20120281A1 (en) | 2012-02-24 | 2013-08-25 | I M A Ind Macchine Automatic He S P A | ZERO DOSAGE PROCEDURE AND FILLING EQUIPMENT FOR FILLING LIQUID CONTAINERS |
ITVR20120034A1 (en) * | 2012-03-02 | 2013-09-03 | Tecres Spa | UNIVERSAL INFUSER DEVICE FOR MEDICINAL AND SIMILAR LIQUIDS, AND METHOD FOR CONTROL OF MEDICINAL AND SIMILAR DISTRIBUTION DISPOSAL. |
DE102013210548A1 (en) * | 2013-06-06 | 2014-12-11 | Bausch + Ströbel Maschinenfabrik Ilshofen GmbH + Co. KG | Peristaltic pump with reduced pulsation and use of peristaltic pump |
-
2017
- 2017-01-19 IT IT102017000005714A patent/IT201700005714A1/en unknown
-
2018
- 2018-01-19 ES ES18700510T patent/ES2847413T3/en active Active
- 2018-01-19 WO PCT/EP2018/051353 patent/WO2018134375A1/en active Search and Examination
- 2018-01-19 EP EP18700510.3A patent/EP3571406B1/en active Active
- 2018-01-19 US US16/479,587 patent/US20190368477A1/en not_active Abandoned
- 2018-01-19 CN CN201880019556.1A patent/CN110446856B/en active Active
- 2018-01-19 JP JP2019538598A patent/JP7030124B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN110446856A (en) | 2019-11-12 |
ES2847413T3 (en) | 2021-08-03 |
US20190368477A1 (en) | 2019-12-05 |
JP2020505545A (en) | 2020-02-20 |
WO2018134375A1 (en) | 2018-07-26 |
CN110446856B (en) | 2021-07-20 |
IT201700005714A1 (en) | 2018-07-19 |
JP7030124B2 (en) | 2022-03-04 |
EP3571406B1 (en) | 2020-11-04 |
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