EP4078109A1 - Vorrichtung zur messung von volumina einer flüssigkeit in einem behältnis mittels messung einer abgegeben hochfrequenten strahlung - Google Patents
Vorrichtung zur messung von volumina einer flüssigkeit in einem behältnis mittels messung einer abgegeben hochfrequenten strahlungInfo
- Publication number
- EP4078109A1 EP4078109A1 EP20837970.1A EP20837970A EP4078109A1 EP 4078109 A1 EP4078109 A1 EP 4078109A1 EP 20837970 A EP20837970 A EP 20837970A EP 4078109 A1 EP4078109 A1 EP 4078109A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- ant
- frequency radiation
- liquid
- transmitter
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
-
- 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
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F22/00—Methods or apparatus for measuring volume of fluids or fluent solid material, not otherwise provided for
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/003—Bistatic radar systems; Multistatic radar systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/225—Supports; Mounting means by structural association with other equipment or articles used in level-measurement devices, e.g. for level gauge measurement
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
-
- 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
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
- A61M1/1621—Constructional aspects thereof
- A61M1/1643—Constructional aspects thereof with weighing of fresh and used dialysis fluid
-
- 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
-
- 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
- A61M2205/3317—Electromagnetic, inductive or dielectric 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
- A61M2205/3379—Masses, volumes, levels of fluids in reservoirs, flow rates
- A61M2205/3389—Continuous level detection
Definitions
- the invention relates to a device for measuring volumes of a liquid in a container by measuring an emitted high-frequency radiation.
- a device for measuring volumes of a liquid in a container by measuring an emitted high-frequency radiation having a control unit, a transmitter, at least one first transmitting antenna and at least one second transmitting antenna, at least one first receiving antenna and a receiver, the The transmitter is set up to emit high-frequency radiation during operation, the first transmitting antenna and the second transmitting antenna being set up to emit the high-frequency radiation during operation so that radiation can reach the container, the receiving antenna being set up to receive high-frequency radiation reflected by the container during operation, the receiver is set up to receive the high-frequency radiation picked up by the receiving antenna during operation, the control unit being set up to control the transmitter so that the transmitter emits high-frequency radiation, and the control unit continues to set up et is to evaluate the high-frequency radiation picked up by the receiver in such a way that a measure for the volume of the liquid in the container is determined, the measure for the volume of the liquid in the container being determined from a channel state information.
- a device for measuring volumes of a liquid in a container by measuring an emitted high-frequency radiation comprising a control unit, a transmitter, at least one first transmitting antenna and at least one second transmitting antenna, at least one first receiving antenna and one second receiving antenna and a receiver, the transmitter being set up to emit high-frequency radiation during operation, the first transmitting antenna and the second transmitting antenna being set up to emit the high-frequency radiation during operation so that radiation can reach the container, the first receiving antenna being set up to be high-frequency reflected from the container during operation Receiving radiation, wherein the second receiving antenna is set up to receive high-frequency radiation transmitted by the container during operation, wherein the control unit is set up to control the transmitter so that the transmitter emits high-frequency radiation, u nd wherein the control unit is further set up to evaluate the high-frequency radiation picked up by the receiver on the basis of received digital data packets so that a measure for the volume of the liquid in the Container is determined, the measure for the volume of the liquid in the container is determined from a channel
- FIG. 1 a schematic overview of elements in embodiments of the invention
- FIG. 2 shows a schematic arrangement of antennas in relation to the container according to embodiments of the invention
- FIG. 3 shows a schematic arrangement of antennas in relation to the container according to alternative or additional aspects in embodiments of the invention
- FIG. 4 shows a schematic arrangement of antennas in relation to the container according to alternative or additional aspects in embodiments of the invention
- FIG. 3 shows a schematic arrangement of antennas in relation to the container according to alternative or additional aspects in embodiments of the invention
- FIG. 4 shows a schematic arrangement of antennas in relation to the container according to alternative or additional aspects in embodiments of the invention
- FIG. 5 shows a schematic arrangement of antennas in relation to the container according to alternative or additional aspects in embodiments of the invention. Detailed description of the invention
- FIG. 1 shows a schematic overview of elements in embodiments of the invention. That is, not all elements are necessary for the solution according to the invention.
- a device 1 is provided for measuring volumes of a liquid in a container B by measuring an emitted high-frequency radiation.
- the device 1 has a control unit C, a transmitter TX, at least one first transmitting antenna ANT_TX1 and at least one second transmitting antenna ANT_TX2, at least one first receiving antenna ANT_RX1 and a receiver RX. Such an arrangement is shown schematically in FIG.
- the transmitter TX is set up to emit high-frequency radiation during operation.
- the radiation can be modulated on one or more frequencies.
- the high-frequency radiation carries digital data packets.
- the first transmitting antenna ANT_TX1 and the second transmitting antenna ANT_TX2 are set up to emit the high-frequency radiation during operation, so that radiation can reach the container B.
- the receiving antenna ANT_RX1 is set up to receive high-frequency radiation reflected by the container B during operation.
- the device 1 has a predetermined arrangement of transmitting antenna (s), container B and receiving antenna (s).
- the receiver RX is set up to receive the high-frequency radiation picked up by the receiving antenna ANT_RX1 during operation.
- the control unit C is set up to control the transmitter TX in such a way that the transmitter TX emits high-frequency radiation. This means that the control system causes the transmitter TX to emit high-frequency radiation in a controlled manner (via one or more antennas) (on one or more frequencies).
- the control unit C is also set up to evaluate the high-frequency radiation recorded by the receiver RX (via one or more antennas) (at one or more frequencies) on the basis of received digital data packets so that a measure for the volume of the liquid in the container B is determined becomes.
- the measure for the volume of the liquid in the container B is preferably determined from channel state information.
- Channel state information is used in many wireless (digital) communication systems to characterize the properties of a communication channel.
- the Channel State Information thus reflects properties along the propagation path that are influenced, for example, by scattering, attenuation, loss of power due to distance, etc.
- channel state information By evaluating channel state information, it is possible, for example, to obtain clues as to how transmission properties should be changed so that given channel properties a secure connection with preselected properties (such as reaching a certain data rate) can be enabled.
- this adaptability is not important in the invention.
- the invention utilizes the change in channel state information data packets during the propagation of the signal, in particular when passing through liquids: Certain packets show errors after passing through a liquid. The knowledge of the occurrence of errors along the signal propagation is used to determine the liquid volume.
- the arrangement can be arranged as in FIG. 2 so that the connecting lines between the transmitting antennas ANT_TX1 and ANT_TX2 used form an angle of 1 ° to 180 °, preferably 30 ° to 90 °, with respect to the container B.
- a device 1 is provided for measuring volumes of a liquid in a container B by measuring an emitted high-frequency radiation.
- the device 1 in turn has a control unit C, a transmitter TX, at least one first transmitting antenna ANT_TX1 and at least one second transmitting antenna ANT_TX2, at least one first receiving antenna ANT_RX1 and a second receiving antenna ANT_RX2 and a receiver RX.
- a control unit C a transmitter TX, at least one first transmitting antenna ANT_TX1 and at least one second transmitting antenna ANT_TX2, at least one first receiving antenna ANT_RX1 and a second receiving antenna ANT_RX2 and a receiver RX.
- the transmitter TX is set up to emit high-frequency radiation during operation.
- the transmitter TX is set up to emit high-frequency radiation during operation.
- the radiation can be modulated on one or more frequencies.
- the high-frequency radiation carries digital data packets.
- the first transmitting antenna ANT_TX1 and the second transmitting antenna ANT_TX2 are set up to emit the high-frequency radiation during operation, so that radiation can reach the container B.
- the first receiving antenna ANT_RX1 is set up to receive high-frequency radiation reflected by the container B during operation.
- the second receiving antenna ANT_RX2 is set up to receive high-frequency radiation transmitted by the container B during operation. That is, the device 1 has a predetermined arrangement of transmitting antenna (s), container B and receiving antenna (s).
- the control unit C is set up to control the transmitter in such a way that the transmitter TX emits high-frequency radiation. This means that the control system causes the transmitter TX to emit high-frequency radiation in a controlled manner (via one or more antennas) (on one or more frequencies).
- the control unit C is also set up to evaluate the high-frequency radiation picked up by the receiver RX on the basis of received digital data packets so that a measure for the volume of the liquid in the container B is determined.
- the measure for the volume of the liquid in the container B is preferably determined from channel state information.
- Channel state information is used in many wireless communication systems to characterize the properties of a communication channel.
- the channel state information thus reflects properties along the propagation path that are influenced, for example, by scattering, attenuation, loss of power due to distance, etc.
- the Channel State Information is to be distinguished from the less meaningful RSSI (Received Signal Strength Indicator).
- the invention uses the change of channel state information data packets when propagating the signal especially when passing through liquids, from: Certain packets show errors after passing through a liquid. Knowledge of the origin of errors along the signal propagation is used to determine the liquid volume. Data rate). However, this adaptability is not important in the invention. For the invention, only the description of the property of the propagation path is of interest. In this respect, other information that reflects the properties of the propagation path in a similar way can be used in the same way.
- This second embodiment is particularly suitable for the detection of liquids in bags that tend to change shape when the volume changes, e.g. due to lateral displacement, bulges, etc.
- creases, dents, displacements, etc. can occur, which can have a disruptive influence on other measuring arrangements, since this causes a wall of the container (namely the bag) to migrate relative to the measuring devices how sensors or antennas can lead.
- a measure for the volume of the liquid in the container B could be determined from a respective channel state information both at the same time or with a time delay. Both dimensions determined in this way can then be made available, for example, for a plausibility check and / or a message.
- one or more antennas can also serve as transmitting and receiving antennas (e.g. for different spatial measurements in one embodiment or in a first measurement according to the first embodiment and in a second measurement according to the second embodiment). That is to say, on the basis of a predetermined structure, the volume in a container B can be measured without contact in a particularly simple manner in all embodiments.
- the receiver RX and transmitter TX and / or the assigned antennas can be components of a WLAN device.
- a WLAN device e.g. certain network chipsets make it possible to determine channel state information or to provide the data on which this determination is based.
- An exemplary chipset is sold as the Atheros chipset. Chipsets that provide this information can usually also be found in access points, such as WLAN-enabled routers and MIMO-enabled devices.
- a chipset or a WLAN card that is capable of channel state information is also offered by Intel, for example.
- a corresponding device 1 can thus be implemented particularly easily with a single computer as the control unit C and two network interfaces which enable a CTI value to be determined.
- the distance between the first transmitting antenna ANT_TX1 and the first receiving antenna ANT_RX1 is at least 3/8 of the wavelength used for the high-frequency radiation to be emitted.
- the distance between the first transmitting antenna ANT_TX1 and / or the first receiving antenna ANT_RX1 in relation to the container B is at least 3/8 of the wavelength used of the high-frequency radiation to be emitted.
- the distance between the first transmitting antenna ANT_TX1 and the first receiving antenna ANT_RX1 is approximately 4 times the wavelength used for the high-frequency radiation to be emitted. Furthermore, it is provided in embodiments of the invention that the high-frequency radiation, radiation of a near-field communication system or radiation of a frequency that are approved for use for industrial, scientific, medical, domestic or similar purposes that are not radio applications are selected.
- Typical near-field communication systems are e.g. WLAN, Bluetooth (Low Energy), ZigBee, DECT (Ultra Low Energy), or their successor systems without being limited to a specific specification.
- Typical frequencies that are approved for use for industrial, scientific, medical, domestic or similar purposes that are not radio applications are in the frequency ranges 433.05 MHz - 434.79 MHz, 902 MHz -928 MHz, 2.4 GHz - 2.5 GHz, 5.725 GHz - 5.875 GHz, 24 GHz - 24.25 GHz, 61 GHz - 61.5 GHz, 122 GHz - 123 GHz as well as 244 GHz - 246 GHz, but without being limited to this.
- the container B is a bag. Bags are characterized by the fact that they are usually closed and the liquid can flow out of the bag / into the bag via a controlled opening. Bags can also change their external shape, e.g. when liquid is removed from container B. In particular, if a bag B provides a larger volume than a liquid in bag B requires, the external shape will be able to change under the influence of, for example, the force of gravity.
- Bags as container B represent a great challenge in terms of volume determination, but are easy to manage within the scope of the invention.
- at least one transmitting antenna ANT_TX1 is attached to the container B or a receptacle H.
- an antenna can be printed or glued on. The antenna can then be contacted with the transmitter by means of a suitable contact device.
- Providing an antenna on the container B or a receptacle H can be advantageous, for example, if the distance between the transmitting antenna and the container B or the liquid is to be small or defined.
- At least one receiving antenna ANT_RX1 is attached to the container B or a receptacle H.
- an antenna can be printed or glued on. The antenna can then be contacted with the transmitter by means of a suitable contact device.
- Providing an antenna on the container B or a receptacle H can be advantageous, for example, if the distance between the receiving antenna and the container B or the liquid is to be small or defined.
- the location of the attachment of such a transmitting antenna or receiving antenna can, for example, be selected on the basis of the properties of the container B, for example such that the liquid can be irradiated as independently as possible of the fill level of the liquid in the container B.
- a transmitting antenna or a receiving antenna can be arranged on the bottom of the container B.
- the container B has a flexible wall. It can then be provided that the device 1 for measurement - as sketched in FIG. 1 - has a receptacle H with a rigid wall, so that the container B rests laterally on the receptacle H in a filled state.
- the wall can be so high that a bag B fully filled with liquid, when it is in the receptacle H, does not protrude beyond the wall.
- the receptacle H can be designed as a rigid container, for example as a tub or drawer. It can be made of plastic, for example.
- the base of the receptacle H can be selected, for example, so that a bag B fully filled with liquid can be inserted into the receptacle H.
- the base area can be selected in such a way that a bag B completely filled with liquid touches the wall over about 50% of the wall area of the bag.
- the base area can of course also be determined by other considerations. For example, it may be desirable that the base size of the base area, such as the diameter, does not fall below a certain size, e.g. at least one wavelength of the related radiation.
- the receptacle H is designed as one or more spikes or rods on which a bag can be hung.
- a bag can have eyelets, for example, so that when hanging, spikes or rods protrude through corresponding eyelets.
- the device 1 also has a receiving antenna ANT_H for determining background radiation.
- the background radiation can also be determined by means of one or more existing receiving antennas. This is possible, for example, at times when the receiving antenna is not required for other types of measurements.
- auxiliary antennas in particular with directional auxiliary antennas (possible as both transmitting and receiving antennas), for example, the proportion of attenuation caused by free-space radiation can be determined very reliably, whereby a corrective parameter can be determined. If the influence of the free space attenuation is small, the determination can be dispensed with.
- a transmitting antenna (or several or all) ANT_TX1, ANT_TX2 can have a directional characteristic as an alternative to an omnidirectional characteristic.
- a receiving antenna (or several or all) ANT_RX1, ANT_RX2, ANT_RX3, ANT_H can have a directional characteristic as an alternative to an omnidirectional characteristic.
- Omnidirectional characteristics are provided by rod antennas, for example.
- Directional characteristics are exhibited, for example, by dipole antennas or panel antennas.
- the invention can be used in many areas.
- the medical field is of particular importance.
- medical devices M in which a weight or a volume of a liquid is monitored, for example during a treatment.
- a medical device M can measure the volume of a liquid in a container B which is supplied to a body of a mammal or discharged from a body of a mammal or is a liquid in a secondary circuit for the treatment of this liquid.
- Exemplary fluids that are supplied to a body of a mammal are, for example, infusions, heparin, blood, saline solutions, medicaments for intravenous administration, parenteral nutrition, etc.
- Exemplary fluids that are drained from a body of a mammal are, blood, urine.
- the medical device M can be a dialysis device, the liquid being a liquid in connection with dialysis, in particular dialysate.
- the form of dialysis is not fixed, but can be kidney dialysis, in particular in the form of hemodialysis, peritoneal dialysis, hemofiltration, hemodiafiltration and hemoperfusion, as well as liver dialysis, in particular apheresis, single pass albumin dialysis, molecular adsorbents recirculation system , affect.
- the medical device M is preferably a dialysis machine and the dialysis measures the volume of a liquid in one or more bags.
- the dialysis machine is connected to a bag B for fresh dialysate and / or for used dialysate.
- the dialysis machine M can determine the fluid balance during a treatment by measuring fresh and used dialysate.
- a dialysis machine M has one or more receptacles H, for example for hanging, from one or more containers B, for example bags - for example for dialysate - on its housing, for example on the lower edge, and a device 1 according to the invention for measuring the volume of a Liquid in such a way that the dialysis machine M can measure the volume of liquid in attached containers B by means of high-frequency radiation.
- FIGS. 6 to 9 schematically show different attachment locations in relation to a medical device M.
- the medical device M has, for example, an optional display SC, e.g. a (flat) screen) on which results relating to one or more volume measurements, e.g. current volume, volume change, volume flow, etc. can be displayed.
- the optional display SC can also provide a user interface with which, for example, a measurement can be initiated manually by the device 1.
- Several receptacles H_1, H_2, H_3_ H_4 are shown in the figures. However, only one receptacle H or even more receptacles can be provided.
- instead of one container B several containers B can also be provided.
- the antennas ANT_1 ... ANT_4 ... ANT_N of the device 1 can be arranged on the upper side of the medical device M, for example, as shown in FIGS. 6a-6c.
- the antennas can, however, also be arranged on the underside of the medical device M, as shown in FIGS. 7a-7c. However, this does not exclude other arrangements.
- the antennas can also be arranged in a distributed manner. While ANT_1 is arranged more centrally on the front, the antennas ANT_2 and ANT_3 can e.g. be arranged distributed on the underside.
- antenna ANT_1 is arranged offset to antennas ANT_2 ... ANT_4.
- the function of the antennas ANT_1 ... ANT_5 ... ANT_N of the device 1, i.e. as a transmitting antenna and / or as a receiving antenna, can be suitably selected.
- the medical device of FIGS. 6-9 can be a dialysis treatment machine (in particular a hemodialysis machine) with a device 1 according to the invention.
- a dialysis treatment machine for example, the fill level in a connected container B is measured (and monitored).
- the container B is typically a 5 L plastic canister.
- a typical liquid that is stored in such a container B is a concentrate for dialysis treatment.
- the liquids contain acetates or bicarbonates.
- the measure for the volume of the liquid in the container B is determined via a large number of individual measurements, e.g. several tens of thousands of measurements, for example 27 thousand measurements. For example, a large number of data packets can be sent and received.
- the associated parameters such as the channel state information, can themselves represent an averaged value or, if necessary, be averaged themselves.
- the measuring arrangement of transmitting antenna (s) and receiving antenna (s) are present several times.
- an arrangement according to FIG. 2 is provided several times, it can be provided, for example, that the arrangements have an angle of 15 ° to 135 to one another, as shown in FIG.
- a first arrangement could consist of the transmitting antennas ANT_TX1, ANT_TX2 and the receiving antenna ANT_RX1
- a second arrangement shown in mirror image, consists of the transmitting antennas ANT_TX3, ANT_TX4 and the receiving antenna ANT_RX2.
- the arrangements can generally have different positions with respect to one another and / or the arrangement can be constructed differently from one another.
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- Heart & Thoracic Surgery (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Public Health (AREA)
- Urology & Nephrology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Veterinary Medicine (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Anesthesiology (AREA)
- Emergency Medicine (AREA)
- Biomedical Technology (AREA)
- Fluid Mechanics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Thermal Sciences (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019219816.3A DE102019219816A1 (de) | 2019-12-17 | 2019-12-17 | Vorrichtung zur Messung von Volumina einer Flüssigkeit in einem Behältnis mittels Messung einer abgegeben hochfrequenten Strahlung |
| PCT/EP2020/086647 WO2021122897A1 (de) | 2019-12-17 | 2020-12-17 | Vorrichtung zur messung von volumina einer flüssigkeit in einem behältnis mittels messung einer abgegeben hochfrequenten strahlung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4078109A1 true EP4078109A1 (de) | 2022-10-26 |
Family
ID=74130184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20837970.1A Withdrawn EP4078109A1 (de) | 2019-12-17 | 2020-12-17 | Vorrichtung zur messung von volumina einer flüssigkeit in einem behältnis mittels messung einer abgegeben hochfrequenten strahlung |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20230024911A1 (de) |
| EP (1) | EP4078109A1 (de) |
| CN (1) | CN114829887A (de) |
| DE (1) | DE102019219816A1 (de) |
| WO (1) | WO2021122897A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117771460B (zh) * | 2024-02-27 | 2024-05-03 | 中国人民解放军东部战区总医院 | 一种便携式血液透析设备远程监测方法及系统 |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19935743A1 (de) * | 1999-07-29 | 2001-02-01 | Asg Luftfahrttechnik Und Senso | Verfahren und Anordnung zur Bestimmung eines Füllstandes |
| DE10214699A1 (de) * | 2002-04-03 | 2003-10-16 | Kohr Gmbh & Co Medizintechnik | Einrichtung und Verfahren zur Füllstandserfassung |
| US8029454B2 (en) * | 2003-11-05 | 2011-10-04 | Baxter International Inc. | High convection home hemodialysis/hemofiltration and sorbent system |
| DE102005044724A1 (de) * | 2005-09-19 | 2007-03-22 | Endress + Hauser Gmbh + Co. Kg | Laufzeitmessverfahren zur Ermittlung der Distanz |
| US8226595B2 (en) * | 2006-05-26 | 2012-07-24 | Baxter International Inc. | Automated dialysis system driven by gravity and vacuum |
| GB2440767A (en) * | 2006-08-11 | 2008-02-13 | Zarlink Semiconductor Ltd | Antenna with fluid dielectric |
| US8141417B2 (en) * | 2007-08-23 | 2012-03-27 | Mallinckrodt Llc | Syringe content detection using RF energy |
| DE102009017304A1 (de) * | 2009-04-11 | 2010-10-21 | Fresenius Medical Care Deutschland Gmbh | Vorrichtung und Verfahren zur Messung eines Blutbestandteils im Blut für eine extrakorporale Blutbehandlungsvorrichtung |
| US8817258B2 (en) * | 2012-05-21 | 2014-08-26 | Common Sensing Inc. | Dose measurement system and method |
| DE102013100817A1 (de) * | 2013-01-28 | 2014-07-31 | Sick Ag | Mikrowellenschranke und Verfahren zur Erkennung eines Objekts in einem Mikrowellenpfad |
| EP2810669B1 (de) * | 2013-06-03 | 2016-04-20 | Dentsply IH AB | Zusammenlegbarer zylindrischer Behälter |
| DE102013108496A1 (de) * | 2013-08-07 | 2015-02-12 | Karl Storz Gmbh & Co. Kg | Füllstandsüberwachung an einem Flüssigkeitsbeutel |
| DE102013016204A1 (de) * | 2013-09-28 | 2015-04-02 | Fresenius Medical Care Deutschland Gmbh | Sensorik zur Detektion von Phasen und/oder Phasenübergängen bei Peritonealdialysebehandlungen |
| US11013867B2 (en) * | 2016-03-25 | 2021-05-25 | Microtek Medical, Inc. | Medical weighing systems |
| DE102016008868A1 (de) * | 2016-07-20 | 2018-01-25 | Fresenius Medical Care Deutschland Gmbh | Verfahren zur Beladung eines medizinischen Gerätes |
| US10458831B2 (en) * | 2017-07-05 | 2019-10-29 | Saudi Arabian Oil Company | System and method for acoustic container volume calibration |
| HUE053290T2 (hu) * | 2017-10-06 | 2021-06-28 | Grieshaber Vega Kg | Radar töltöttségi szintet mérõ eszköz chipen |
-
2019
- 2019-12-17 DE DE102019219816.3A patent/DE102019219816A1/de active Pending
-
2020
- 2020-12-17 US US17/785,056 patent/US20230024911A1/en not_active Abandoned
- 2020-12-17 EP EP20837970.1A patent/EP4078109A1/de not_active Withdrawn
- 2020-12-17 CN CN202080087007.5A patent/CN114829887A/zh active Pending
- 2020-12-17 WO PCT/EP2020/086647 patent/WO2021122897A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE102019219816A1 (de) | 2021-06-17 |
| US20230024911A1 (en) | 2023-01-26 |
| CN114829887A (zh) | 2022-07-29 |
| WO2021122897A1 (de) | 2021-06-24 |
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