EP4054672A1 - Infusionssystem, rotormodul zur verwendung in einem solchen infusionssystem und verfahren zur ermittlung einer durchflussrate einer infusionsflüssigkeit in einem solchen infusionssystem - Google Patents
Infusionssystem, rotormodul zur verwendung in einem solchen infusionssystem und verfahren zur ermittlung einer durchflussrate einer infusionsflüssigkeit in einem solchen infusionssystemInfo
- Publication number
- EP4054672A1 EP4054672A1 EP20801239.3A EP20801239A EP4054672A1 EP 4054672 A1 EP4054672 A1 EP 4054672A1 EP 20801239 A EP20801239 A EP 20801239A EP 4054672 A1 EP4054672 A1 EP 4054672A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor
- infusion
- flow rate
- infusion system
- rotational frequency
- 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.)
- Pending
Links
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
-
- 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
- A61M5/1411—Drip chambers
-
- 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
- A61M5/1413—Modular systems comprising interconnecting elements
-
- 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
- A61M5/1414—Hanging-up devices
-
- 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
- A61M5/148—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons flexible, e.g. independent bags
- A61M5/152—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons flexible, e.g. independent bags pressurised by contraction of elastic reservoirs
-
- 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
- A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
-
- 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
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3306—Optical measuring means
-
- 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
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
- A61M2205/3334—Measuring or controlling the flow rate
-
- 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
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3365—Rotational speed
-
- 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
- A61M2205/50—General characteristics of the apparatus with microprocessors or computers
- A61M2205/502—User interfaces, e.g. screens or keyboards
- A61M2205/505—Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches
-
- 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
- A61M2205/50—General characteristics of the apparatus with microprocessors or computers
- A61M2205/52—General characteristics of the apparatus with microprocessors or computers with memories providing a history of measured variating parameters of apparatus or patient
-
- 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
- A61M2205/75—General characteristics of the apparatus with filters
-
- 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
- A61M5/1424—Manually operated pumps
-
- 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
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16886—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body for measuring fluid flow rate, i.e. flowmeters
Definitions
- Infusion system rotor module for use in such an infusion system and method for determining a flow rate of an infusion liquid in such an infusion system
- the invention relates to an infusion system, a rotor module for use in such an infusion system, a method for determining a flow rate of an infusion liquid in such an infusion system, and a correspondingly computer-implemented method and associated computer program product.
- elastomer pumps in which the pump pressure is built up by stretching an elastomer body, the infusion rate being specified by a flow limiter such as a fine capillary.
- elastomer pumps are usually designed in such a way that an infusion flow rate that is theoretically fixed, predetermined by the design and layout of the system, is applied.
- common elastomer pumps have flow rate fluctuations with a relatively high tolerance window, since the flow rate can change due to the changes in tension on the elastic liquid reservoir.
- Other influencing factors on the flow rate in elastomer pumps are, for example, the temperature, the filling quantity, the viscosity of the infusion liquid and the ambient pressure.
- the user has no way of detecting or influencing a resulting deviation from the theoretically fixed, predetermined flow rate. In the absence of appropriate regulation options, a tolerable flow rate can only be guaranteed under strictly specified framework conditions.
- the object according to the invention is achieved by an infusion system according to claim 1, a rotor module for use in such an infusion system according to claim 9 and a method for determining a flow rate of an infusion liquid in such an infusion system according to claim 10. Further advantageous refinements of the invention emerge from the subclaims.
- the invention also provides a computer-implemented method for determining a flow rate of an infusion liquid in an infusion system according to claim 15 and a computer program product for executing the computer-implemented method according to claim 16 is available
- the infusion system comprises a chamber for receiving an infusion liquid and an infusion line for conveying the infusion liquid out of the chamber, the infusion line comprising at least one rotor module or at least connected at its downstream end to a rotor module whose rotor can be driven by the infusion liquid.
- the speed of the rotor corresponds to the flow rate of the infusion liquid.
- the rotor is designed precisely for smaller flow rates in order to be able to be driven at a speed corresponding to the flow rate.
- the flow rate of the infusion liquid can be determined objectively from the speed of the rotor in conjunction with the inflow cross-section.
- connection can take place directly or indirectly.
- An indirect or indirect connection can be particularly advantageous if a change in the flow rate of the infusion liquid is possible via the connection section, for example by interposing further elements, so that the actual flow rate can be determined at a location relevant for the dosage of the infusion.
- infusion system can be added or integrated on the upstream and / or downstream side of the rotor module, regardless of whether the rotor module is integrated into an infusion line or whether the rotor module is connected to the end of a (possibly “first”) infusion line a further (possibly then "second") infusion line and / or further devices, some of which are specifically described below.
- the rotor is at least partially visible from the outside through a transparent housing section of the rotor module.
- the rotational movement of the rotor can be detected and evaluated by an optical detection unit, which will be described later.
- a marking of the rotor described below, which can be observed in the transparent housing section can be used to determine the flow rate.
- the speed of the rotor and thus the corresponding flow rate can be displayed by a display that is independent of the transparent housing section, such as a scale, which is connected to the rotor, for example via a transmission.
- the rotor module can also generate a signal corresponding to the rotor speed, which can be forwarded to a display that is independent of the transparent housing section or to an external system. By forwarding them to an external system, flow rates can be logged and / or warning messages can be issued if specified limit values are exceeded. The latter is particularly advantageous when it cannot be guaranteed that the infusion recipient will be able to react appropriately so that the appropriate care personnel is informed.
- the rotor has at least one marking which can be observed through the transparent housing section at least while it is passing through the transparent housing section.
- Such a marking is optically easily perceptible and / or detectable and / or, depending on the speed and configuration, can generate a pattern that corresponds to a predetermined speed or a predetermined speed range. With regard to the latter, if the pattern fails to develop, it can be concluded that the flow rate is insufficient or too high.
- the chamber is a drip chamber of a gravity system or a drip chamber of a pressure infusion system.
- the chamber is an infusion reservoir of an elastomer pump.
- the infusion line has a flow rate reducer, in particular a roller clamp between the infusion reservoir and the rotor module.
- a corresponding flow rate reducer can be set so that in normal operation it already reduces the flow rate compared to a maximum flow rate to the predetermined value, so that in the event of an impermissible deviation, not only a reduction but also an increase in the flow rate depending on the required correction direction the flow rate reducer can be made.
- This can be implemented in a simple manner using a roller clamp, with which the relevant users are also very familiar. This is particularly advantageous in the case of elastomer pumps, which otherwise do not have the option of adjusting the flow rate.
- the infusion line and / or the rotor module comprises a filter and the rotor is arranged downstream of the filter in the downstream direction. Particles can be filtered out of the infusion liquid through the filter. Since the flow behavior of the infusion liquid can change after the particles have been filtered, the flow rate is determined via the speed of the rotor only in the flow path of the filtered infusion liquid.
- the infusion system comprises an optical detection unit, via which the rotational frequency of the rotor can be detected, in particular can be converted into a flow rate of the infusion liquid and can be displayed and / or stored.
- the optical detection unit can be designed as a scanner or camera.
- the optical detection unit is a mobile device such as a smartphone or a tablet (tablet computer), the smartphone or the tablet comprising a correspondingly integrated scanner or a correspondingly integrated camera.
- the detected speed can be converted using a calculation algorithm, for example by increasing the inflow diameter of the infusion line, or by comparing it with stored table values.
- the latter can also be designed to transmit signals for converting the rotational speed into a flow rate, for display and / or for storage of the flow rate to a higher-level system.
- the invention is directed to a rotor module for use in an infusion system described above, wherein the rotor module comprises a connection for connection to an infusion line and the rotor module has a rotor which is arranged such that the infusion liquid via the rotor to a downstream outlet of the Rotor module can be guided.
- the rotor module can be connected to a conventional infusion system to determine the flow rate of the infusion liquid.
- the rotor module can be retrofitted.
- the rotor module can be used as required.
- the invention is also directed to a method for determining a flow rate of an infusion liquid in an infusion system described above, comprising the steps:
- the conversion is based on the correlation between the rotational frequency of the rotor and the flow rate of the infusion liquid.
- the advantages of this procedure arise analogously to the statements relating to the infusion system according to the invention.
- the rotational frequency of the rotor is recorded via an optical detection unit, in particular a scanner or a camera.
- the optical detection unit is aligned with the rotor. If the optical detection unit is not part of the rotor module, at least one housing section which is transparent for the optical detection unit and via which the rotational frequency of the rotor can be optically detected is to be provided. The detection of the rotational frequency via the optical detection unit takes place in particular over a predetermined period of time in order not to subject any short-term rotational speed fluctuations that may occur to a snapshot and / or if the rotational speed determination is based on the change in a detection state.
- the optical detection unit detects the rotational frequency of the rotor via a marking provided on the rotor.
- the change in position of the marking over a predetermined period of time or a pattern that forms over the marking in connection with the rotational frequency of the rotor can be detected by the optical detection unit.
- the optical detection unit displays the flow rate of the infusion liquid converted from the rotational frequency of the rotor.
- the display can also have a different colored background, for example to visualize critical flow rates accordingly in red.
- the optical detection unit such as a smartphone or tablet, can also be designed to alternatively or additionally send out an acoustic, optical and / or haptic signal.
- the optical detection unit can also transmit corresponding warning messages and / or messages to external systems.
- the optical detection unit is mobile and displays operating instructions for the detection process in particular.
- a mobile optical detection unit such as the smartphone or tablet device already mentioned above, with the respective integrated camera or scanner, enables the optical detection unit to be used flexibly.
- Smartphones or tablets are already carried by users as standard, so that they can be upgraded in a simple manner by installing a computer program product, which will be described later.
- the optical acquisition unit can also display operating instructions directly, so that in particular also non-medically trained specialists can directly implement the method according to the invention.
- the optical detection unit can indicate that its alignment with the rotor was not carried out correctly, that it must be kept steady, that the detection process has ended, or that the detection process must be repeated.
- the invention is also directed to a computer-implemented method for determining a flow rate of an infusion liquid in an infusion system described above, comprising the steps: - triggering a detection of a rotational frequency of the rotor of the rotor module,
- the detection can be triggered manually via an input interface or provided in an automated system continuously, at predetermined times or as a function of events.
- a triggering event can be, for example, the change in the ambient temperature, which, as stated above, can impair the flow rate of the infusion liquid.
- Another object of the present invention relates to a computer program product which comprises instructions which, when the program is executed, cause the program to execute the computer-implemented method described above.
- Such a computer program product can be made available, for example, in the form of an app, that is to say a user program, on a smartphone or a tablet.
- the computer program product can include further program sequences, for example using a test sequence to query the technical requirements of an optical detection unit for sufficient reliability of the detection of the rotational frequency of the rotor and to prevent detection if this is not guaranteed.
- access restrictions to the method or to parts thereof can be implemented via the computer program product.
- FIG. 1 shows a schematic view of an infusion system according to an exemplary first embodiment
- FIG. 2 shows a schematic view of an infusion system according to an exemplary second embodiment.
- FIG. 1 The schematic view of an infusion system 1 according to an exemplary first embodiment shown in FIG. 1 shows a chamber 10, which here is a drip chamber 10 of a gravitational or pressure infusion system.
- a rotor module 20 with a rotor 21 adjoins the infusion line 30.
- the rotor module 21 is encompassed here by the infusion line 30, but can also be connected downstream of the infusion line 30 in the flow direction of the infusion liquid and connected to it and again on a fluid outlet side, i.e. on the side on which an outlet for the infusion liquid flowing through the rotor module is provided, have a further line or a connection to further components.
- the rotor module 20 does not have to be connected directly to the infusion line adjoining the drip chamber, but can also form such a connection indirectly via components arranged in between.
- the rotor module 20 has on one side which allows a view of the axis of rotation of the rotor 21 and / or of a section of the rotor 21 extending radially to the axis of rotation of the rotor 21, i.e. a section in a plane perpendicular to the axis of rotation of the rotor 21, a transparent housing section 22.
- both the rotor 21 perpendicular to the axis of rotation and the marking 23 can be optically detected via the transparent housing section 22.
- the marking 23 consists of two vertical marking lines that are in the Cross the axis of rotation. The marking is detected via the optical detection unit 40, designed here as a scanner, and the rotational speed of the rotor is determined via it.
- the marking lines form a virtual line pattern as a function of the speed, that is to say a line pattern that deviates from the actual marking lines in a state of rest, the speed being derived from the distance between the virtual lines.
- the change in a position of the marking 23 or a marking line of the marking 23 can be used to determine the rotational speed.
- the optical detection unit 41 can calculate the current flow rate of the infusion liquid from the rotational speed of the rotor 21.
- the optical detection unit can also have an input unit, via which predetermined inflow cross-sections A can be selected and / or input, provided that variants can occur.
- the flow rate converted from the rotational speed is then displayed on the display 41 of the optical detection unit 40.
- the optical detection unit 40 can also transmit the determined rotational speed and / or the converted flow rate to external display devices and / or storage devices.
- FIG. 2 shows a schematic view of an infusion system 1 ' according to an exemplary second embodiment of the invention, in which the same reference symbols designate the same or corresponding elements.
- the chamber 10 ' is an infusion reservoir of an elastomer pump.
- an infusion line 30, which comprises a flow rate reducer 50, a filter 60 and a rotor module 20, is in turn connected.
- the determination of the speed of the rotor 21 takes place analogously to the procedure described for the first embodiment.
- the flow rate reducer 50 which is designed here as a roller clamp, can change the flow rate of the infusion liquid. If, for example, an impermissible deviation of the flow rate over the rotational speed of the rotor 21 is detected, the flow rate can be adapted to a predetermined target value or a permissible range of the flow rate. Correspondingly is located the flow rate reducer in particular upstream of the rotor module 20 in order to be able to check the result of the adjustment.
- the filter 60 is provided in the detection line in order to filter any particles from the infusion liquid. Accordingly, the rotor module is located downstream of the filter 60 in order to be able to determine the result of the rotational speed and thus the flow rates without the influence of any particles.
- FIG. 2 shows an optical detection unit 40 ' , which is formed here by a smartphone.
- the speed of the rotor 21 can be detected via the camera lens of the smartphone.
- a scanner function of the camera or an image processing program that evaluates a video sequence is used.
- the display of the smartphone or the optical detection unit 40 ' shows an operating instruction by means of which the user is instructed to keep the smartphone still during the detection process.
- the display indicates, by means of optical, acoustic or haptic characters, whether the optical detection unit 40 'is kept sufficiently steady.
- the display can have a green background when the posture is calm, while the color changes from green to red with increasing movement, until, for example, when there is a movement limit value, the measurement is ended or rejected.
- an acoustic signal or an acoustic signal sequence and / or haptic signals, such as a vibration, which corresponds to a movement of the optical detection unit 40 ′ can also be used as an alternative or in addition.
- the invention is not restricted to the embodiments described. In principle, details given for various embodiments can also be transferred to other embodiments, provided that they are not mutually exclusive. Even if a scanner was described for the first and second embodiment, it does not have to be designed as a pure scanner unit, but can also be provided via a smartphone, as in FIG. 2, or a tablet. Accordingly, the scanner can also be adapted by a camera or a camera with a Image processing program that is not necessarily restricted to scanner-adapting acquisition methods can be used. Smartphones and tablets with application programs installed on them are a familiar medium for users. For example, in the embodiment shown in FIG. 2, a table (computer) can be used instead of a smartphone. In addition, a process sequence managed via the application program can reduce errors for inexperienced users and generally simplify the process sequence.
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)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019217315.2A DE102019217315A1 (de) | 2019-11-08 | 2019-11-08 | Infusionssystem, Rotormodul zur Verwendung in einem solchen Infusionssystem und Verfahren zur Ermittlung einer Durchflussrate einer Infusionsflüssigkeit in einem solchen Infusionssystem |
PCT/EP2020/080881 WO2021089582A1 (de) | 2019-11-08 | 2020-11-04 | Infusionssystem, rotormodul zur verwendung in einem solchen infusionssystem und verfahren zur ermittlung einer durchflussrate einer infusionsflüssigkeit in einem solchen infusionssystem |
Publications (1)
Publication Number | Publication Date |
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EP4054672A1 true EP4054672A1 (de) | 2022-09-14 |
Family
ID=73131748
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20801239.3A Pending EP4054672A1 (de) | 2019-11-08 | 2020-11-04 | Infusionssystem, rotormodul zur verwendung in einem solchen infusionssystem und verfahren zur ermittlung einer durchflussrate einer infusionsflüssigkeit in einem solchen infusionssystem |
Country Status (5)
Country | Link |
---|---|
US (1) | US20220387701A1 (de) |
EP (1) | EP4054672A1 (de) |
CA (1) | CA3156975A1 (de) |
DE (1) | DE102019217315A1 (de) |
WO (1) | WO2021089582A1 (de) |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
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DE2047785A1 (de) * | 1970-09-29 | 1972-04-06 | Siemens Ag | Durchflußanzeiger |
IT1250853B (it) * | 1991-11-05 | 1995-04-21 | Hospal Dasco Spa | Rilevatore di flusso. |
ES2205820T3 (es) * | 1999-05-03 | 2004-05-01 | Bd Infusion Therapy Gmbh | Aparato de infusion. |
US7503903B2 (en) * | 2004-02-20 | 2009-03-17 | Fluidnet Corporation | Automated fluid flow control system |
DE102006047613A1 (de) * | 2006-10-07 | 2008-04-10 | Sanofi-Aventis Deutschland Gmbh | Peristaltische Mikropumpe mit wechselbarem Pumpenkopf |
DE102008018632A1 (de) * | 2008-04-11 | 2009-10-15 | Kolesov, Vladimir A. | Strömungsmesser für Flüssigkeiten und Gase mit einem Laufrad |
US9375531B2 (en) * | 2011-10-27 | 2016-06-28 | Zyno Medical, Llc | Syringe pump with improved flow monitoring |
US9242037B2 (en) * | 2012-12-13 | 2016-01-26 | Zyno Medical, Llc | Flow sensor for medical pump |
DE102014219140A1 (de) * | 2014-09-23 | 2016-03-24 | Robert Bosch Gmbh | Vorrichtung zum Messen einer Drehzahl eines Turboverdichters |
DE102016214325A1 (de) * | 2016-08-03 | 2018-02-08 | B. Braun Melsungen Ag | Elastomeres Reservoir einer Infusionspumpe |
CN108333383B (zh) * | 2018-01-16 | 2024-01-16 | 华北电力大学 | 基于智能手机与图像处理的转速测量系统 |
-
2019
- 2019-11-08 DE DE102019217315.2A patent/DE102019217315A1/de active Pending
-
2020
- 2020-11-04 CA CA3156975A patent/CA3156975A1/en active Pending
- 2020-11-04 EP EP20801239.3A patent/EP4054672A1/de active Pending
- 2020-11-04 US US17/773,318 patent/US20220387701A1/en active Pending
- 2020-11-04 WO PCT/EP2020/080881 patent/WO2021089582A1/de unknown
Also Published As
Publication number | Publication date |
---|---|
US20220387701A1 (en) | 2022-12-08 |
WO2021089582A1 (de) | 2021-05-14 |
DE102019217315A1 (de) | 2021-05-12 |
CA3156975A1 (en) | 2021-05-14 |
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