EP3991177A1 - Verfahren zum automatisierten prüfen eines medizingeräts sowie voll-automatisiertes testsystem für ein medizingerät - Google Patents
Verfahren zum automatisierten prüfen eines medizingeräts sowie voll-automatisiertes testsystem für ein medizingerätInfo
- Publication number
- EP3991177A1 EP3991177A1 EP20737369.7A EP20737369A EP3991177A1 EP 3991177 A1 EP3991177 A1 EP 3991177A1 EP 20737369 A EP20737369 A EP 20737369A EP 3991177 A1 EP3991177 A1 EP 3991177A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- robot
- medical device
- code
- optical
- machine
- 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
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Classifications
-
- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H40/00—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices
- G16H40/40—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the management of medical equipment or devices, e.g. scheduling maintenance or upgrades
-
- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H40/00—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices
- G16H40/60—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices
Definitions
- the present invention relates to a method for preferably fully automated, but at least partially automated testing of a medical device, as well as a preferably fully automated, but at least partially automated test system for a medical device.
- Medical devices are conventionally checked for their functionality by means of manual tests during manufacture. During this manual check, the tester is informed of a test step to be performed via the screen of the medical device to be tested (the machine) or by means of the test protocol. Pictures and texts are used to explain which work steps or components the tester has to check.
- GUI graphical user interface
- a main obstacle to automating these manual test sequences is that direct communication between the test devices used and the machines to be tested is not possible because most machines do not have a suitable interface over which such communication could take place.
- Another problem is that, particularly in the medical field, additional data connections which could influence the functioning of the machines must be avoided in order to ensure patient safety.
- the present invention is therefore based on the object of mitigating or completely eliminating the disadvantages of the prior art. Specifically, the present invention has the task of providing an improved and more efficient testing method for medical devices.
- a method according to the invention for testing a medical device by means of at least one robot is preferably carried out automatically or fully automatically, the communication between the medical device and the robot taking place optically and the communication between the robot and the medical device taking place optically and / or haptically.
- a method according to the invention can also be carried out partially automatically, with individual steps being carried out manually.
- test process should be automated by means of a robot.
- the robot must be connected to the medical device (hereinafter also referred to as a machine draws) to find out which test steps to carry out and whether the test was successful or unsuccessful.
- the robot In the event of a failure, the robot then needs appropriate instructions from the machine on how to proceed, e.g. B. Change the service switch position, repeat the test step, cancel the test - sort out the machine.
- This communication with the machine is preferably carried out via a serial interface.
- further communication modules for e.g. B. WLAN, NFC), Bluetooth, etc. are attached via appropriate adapters.
- B. WLAN, NFC, Bluetooth, etc. are attached via appropriate adapters.
- the communication between the machine and the robot is therefore provision for the communication between the machine and the robot to be implemented optically. This prevents the robot from causing damage to the machine during the test.
- a cable connection between the robot and the machine to be tested can therefore be largely avoided or omitted. In this way, the number of cables required per machine can also be reduced, since fewer data cables and only cables for power supply (if no batteries are installed) are required.
- the medical device preferably uses an optical display, in particular in the form of a barcode, 2D code, color code, QR code or other graphic representation, which enables machine image recognition learned via a neural network, which test step for a specific one Time is to be carried out, the medical device preferably accessing and / or activating a program of a plurality of programs stored in the robot for carrying out various test steps.
- the medical device thus operates as a master who, as a slave, specifies certain actions for the robot and guides the robot through the test procedure.
- Such a master-slave operation means a hierarchical organization and distribution of tasks between higher-level stations, the so-called master stations, and one or more subordinate processing units, the so-called slaves.
- the master acts as the higher-level main computer, while the slaves, as dependent satellite computers, carry out the instructions of the master.
- the medical device gives the robot feedback by means of an optical display, in particular in the form of a barcode, 2D code, color code, QR code or another graphic representation, as to whether a test step leads to a positive or negative result has led.
- an optical display in particular in the form of a barcode, 2D code, color code, QR code or another graphic representation
- a chessboard pattern which can be used to calculate the distortion and angle of the screen in relation to the camera.
- a green tick can be used to indicate that the exam has been passed and a red cross to indicate that the exam has been failed.
- the codes e.g. Barcodes, 2D codes, color codes or QR codes can be used.
- the robot's camera system analyzes the optical feedback from the medical device to determine whether the signal of the optical feedback from the medical device looks like a cross or a hook and also checks the color of the signal. This ensures that the correct symbol has been recognized. If the result is repeated negative (test failed), the medical device can be sent for repair or discarded.
- the medical device and the robot are preferably also positioned relative to one another by means of an optical signal or an optical display, in particular in the form of a barcode, 2D code, color code or QR code, which indicates and / or specifies a specific relative positioning.
- the optical signal is preferably output by means of an output unit for optical / visual signals, which is part of the medical device, for example.
- the robot uses a detection unit (camera or camera system) to detect the position of a signal displayed on the output unit, such as a barcode, and uses this to calculate the exact position of the machine. From this, the robot can then derive the position of certain components / elements of the machine, such as the position of the blood pump door or the suction rods, etc.
- the robot can be correctly positioned relative to an output unit of the medical device, preferably an output unit for optical / visual signals, by means of a signal output by the output unit, for example a signal light (LED traffic light) and / or a fine adjustment program which the medical device specifies for the robot at least one predefined position on the output unit, which the robot optically detects and / or scans hap-table, whereby a verification step is preferably used to check whether the alignment of the robot relative to the medical device and / or the output unit of the Medical device falls within a predetermined tolerance range.
- a signal output by the output unit for example a signal light (LED traffic light) and / or a fine adjustment program which the medical device specifies for the robot at least one predefined position on the output unit, which the robot optically detects and / or scans hap-table, whereby a verification step is preferably used to check whether the alignment of the robot relative to the medical device and / or the output unit of the Medical device falls within a predetermined tolerance range.
- the robot can have at least one color sensor and / or at least one camera system for detecting the optical signals output by the medical device.
- the robot is positioned in space and relative to the medical device by means of a driverless movement system and / or the medical device is positioned relative to the robot by means of a driverless movement system.
- the method according to the invention is preferably used in the manufacture of the medical device and / or in a functional check as part of the commissioning of the medical device.
- the method preferably comprises a test step for measuring protective conductor resistance.
- Another aspect of the present invention relates to a system for testing a medical device with at least one robot, which is designed to communicate with an optical output unit of the medical device, with a plurality of programs for performing various test steps being stored in the robot are activated by means of the optical output unit of the medical device.
- the robot is preferably designed to receive from the optical output unit of the medical device optical commands, in particular in the form of a barcode, 2D code, color code, QR code or other graphic representation, which specify which test step the robot should perform on the medical device ren is, and the robot is also designed to communicate with the medical device by means of haptic and / or optical signals or to give it feedback on the test steps carried out.
- the robot has at least one optical detection system, e.g. a camera system or a camera and / or a color sensor.
- the robot can have at least one driverless travel system, by means of which the robot can be positioned relative to the medical device.
- the medical device can also have at least one such driverless travel system.
- the robot is preferably designed to communicate optically with the medical device using a QR stream.
- a QR stream is to be understood here as a continuous sequence of QR codes by means of which a continuous data stream can be transmitted.
- the display unit of the medical device is preferably a touch-sensitive monitor or a touch screen.
- the invention is applied to a blood treatment machine, in particular a dialysis machine and especially a hemodialysis machine (HD machine) as a medical device.
- a blood treatment machine in particular a dialysis machine and especially a hemodialysis machine (HD machine) as a medical device.
- the inven tion can be applied to medical devices of any kind, in particular to machines for hemodiafiltration (HDF) or for hemofiltration (HF).
- an optical communication / communication interface between the robot and the machine.
- the machine is / remains the master and provides an optical output on the monitor using a 2D code or similar, e.g. B. color codes, QR codes or other graphic representation of the robot, wel che test steps are to be carried out.
- a 2D code or similar e.g. B. color codes, QR codes or other graphic representation of the robot, wel che test steps are to be carried out.
- the robot then carries out the corresponding test steps / tasks and gives feedback with the help of a defined push (haptic feedback) on the touchscreen, see Fig. 1.
- a defined push haptic feedback
- the robot can tell the machine or the master whether it was able to perform the tasks successfully or e.g. . B. could not move to a position because of its limited work area and therefore did not perform the task.
- the machine then specifies how to proceed. The machine thus guides the robot through the test.
- the robot program thus comprises a chain of self-contained sub-programs for the individual test steps.
- the corresponding test steps can be called up and carried out depending on the specifications from the master.
- Fig. 2 the communication circuit between the HD machine and the robot is shown graphically. This cycle is independent of the optical output of the medical device and the corresponding receiving module of the robot, such.
- This communication circuit is explained below using a camera system as an optical detector. This is followed by an explanation of this optical communication circuit using a color sensor.
- the communication interface between the robot and the machine is also to be used for fine adjustment in relation to the absolute position of the machine to the original coordinate system of the robot.
- a camera or a camera system is used on the robot side for the detection, analysis and interpretation of the optical signals / output image files from the dialysis machine.
- the Kame rasystem is used in addition to visual communication for object recognition, to z. B. to localize the machine in space and to transfer its position to the robot controller.
- the robot is to be brought to the machine via a driverless transport system, then connected to the power supply, started and the machine's commands carried out.
- the robot should work through the test procedure and the protective conductor resistance measurement.
- the machine is then switched off again and the robot drives to the next machine with the aid of the driverless transport system.
- the main program is divided into the following three work packages (AP): Localization and switching on of the HD machine, test procedure and protective conductor resistance measurement.
- the overall system preferably has the following main components (which are provided with the following reference symbols in FIG. 3):
- Robotiq load cell haptic feedback for the display unit / monitor
- J + K adapter system profile frame for the MiR-UR transition
- Machine 8 with a monitor 10 and a further output unit 11 for optical signals
- the system can furthermore have a test device, such as, for example, a test device used to measure protective conductor resistance.
- a test device such as, for example, a test device used to measure protective conductor resistance.
- a plurality of test devices can also be provided.
- the robot's camera is initially only used for object recognition, in order to determine the position of the machine in space in relation to the original coordinate system of the robot, as shown in FIGS. 4 and 5 is shown.
- FIG. 4 the distance between the robot and the machine 8 is still quite large
- FIG. 5 the robot is already very close to the machine 8.
- PAP diamond branches plan
- the internal device serial number is checked against the serial number affixed to the type plate. This allows the "Assembly" checkpoint to be completed before the new "Test Procedure” checkpoint is can be selected, see FIGS. 9 and 11.
- the camera system is used for this serial number check. To do this, the robot moves to a suitable position to read the barcode on the machine's nameplate.
- the serial number on the type plate is then compared with the serial number on the machine monitor. To do this, the robot aligns the camera lens parallel to the monitor level at a distance of approx. 15 cm. The camera software can then recognize the serial number from the numeric / letter code shown. Alternatively, a simple QR code could be used for this. If these two serial numbers do not match, the robot can correct the serial number via a display / control panel on the touch-sensitive monitor of the medical device, for example via a displayed menu item “Serial Number Entry”, as shown in FIG. The entire process is shown in FIG. 17 as a program flow chart, as well as the individual steps for the first individual test at the test point “test procedure”.
- a view / input mask opens for entering data, see Fig. 10.
- a number block then appears on the monitor, in which only the serial number is missing.
- These are entered as haptic feedback / haptic feedback via the robot.
- the robot presses digits displayed on the touch-sensitive monitor.
- the robot could also enter the equivalent ASCII number with the appropriate identifier.
- the test software can then automatically convert these into the respective letters.
- test point is complete. Via the menu item “Change Process”, the test point “Testing procedures” is selected, see Fig. 11. All the individual tests belonging to this test point (test 1, test 2 etc.) are then listed, see Fig. 12.
- test point test Procedure carried out individually from top to bottom. If the exam is passed, a visual feedback is given. If the exam is not passed, a visual feedback is given which differs from the feedback if the exam is passed. If the exam is not passed, it can be repeated individually later. If all the individual tests have been passed, a corresponding visual feedback is output, preferably the menu item “Testing Procedures” lights up green and the protective conductor resistance measurement can be started.
- the first test in the test procedure is to check the contact sensor for a door of the machine, in particular a blood pump door of a dialysis machine. This should automatically determine whether the blood pump door is open or closed.
- the blood pump door has a threshold value. If the door is open up to this threshold value / limit value, the contact should still register it as closed. This threshold value is tested manually with a standard finger.
- the robot selects the "Blood pump door" item, see Fig. 12. This is followed by instructions on which tasks / test steps are to be carried out. In this case, it will show how far the blood pump door should be opened to test the threshold limit.
- the robot receives the information required for this from the machine via the camera system, see Fig. 13.
- the robot's camera system recognizes the pixelated image of the blood pump door shown in Fig. 13 and can use this to derive the work steps to be carried out for the robot.
- the robot then executes the commands and the machine uses the contact sensor and the corresponding haptic feedback from the robot to register whether the contact sensor is working correctly.
- this is communicated to the robot by the machine through visual feedback via the output unit, for example with a green tick on the monitor, see FIG. 14.
- an error message appears.
- an unsuccessful test is communicated by the machine by visual feedback via the output unit.
- a red X is displayed on the machine's screen together with a QR code describing the error message, see Fig. 15.
- the QR code is read by the robot's camera system and the robot can take appropriate countermeasures.
- the error message is preferably also shown as a numerical code for the user.
- test point “test procedure” has thus failed and a corresponding visual feedback is given, for example a display next to this test point also lights up red, see Fig. 16.
- a display next to this test point also lights up red, see Fig. 16.
- Fig. 16 there is a red lighted display field with an “R” and a Green illuminated display field marked with a "G".
- the camera system recognizes that a test has failed in the test procedure and can repeat it in a targeted manner. It is therefore not necessary to repeat all exams that have already been passed.
- FIG. 17 The entire step chain described up to this point is shown in FIG. 17 in the form of a program flow chart.
- this task is also performed by the camera system.
- a QR code is read from the monitor, which specifies a traffic light color, see FIG. 18. In FIG. 18, the traffic light color in the display field 12 is red.
- the robot then moves the camera to a suitable position and the camera system checks whether the correct color is output. The robot can then confirm this. or report a machine error.
- An optical sensor preferably a color sensor, can be used as the detector.
- the protective conductor resistance measurement is carried out with the machine switched off.
- the robot can therefore no longer receive commands from the machine.
- the camera is only used to set the protective conductor tester and to determine the exact position of the measuring points.
- the measuring points are all touchable, electrically conductive parts that are connected to the protective conductor and must therefore be taken into account during the measurement.
- the robot's camera is used to determine the exact position of the pulled-out screen so that the corresponding measuring points can be targeted.
- a defined force is preferably always used, for example 15 Newtons.
- the measured values are wired by the protective conductor tester, preferably via LAN or furthermore preferably via a serial interface, e.g. an RS-232 line, sent to the robot so that it can check whether these are within the permissible tolerance range. After completion, the machine is returned to its initial state. If an error occurs in the measured values during the test, the machine will be marked accordingly for repair.
- the entire program sequence is shown graphically in the program flow chart in FIG. Then the checkpoint "test procedure" is completely processed.
- communication with the machine can also be carried out with a preferably robot-side color sensor or color sensor system.
- position detection cannot be carried out.
- the machine must always be in exactly the same position over z.
- an adjustment device can be positioned in relation to the robot.
- the robot program always moves the same sequence of approach points in the form a step chain. It is recognized when the machine is no longer correctly positioned. However, this issue cannot be remedied without outside intervention.
- the machine is to be brought to the robot via a conveyor system.
- Sensors e.g. light barriers
- the robot then runs its program with absolute coordinates. In other words, the robot uses absolute coordinates for its positioning.
- the robot receives feedback from the machine via the color sensor through signal colors, see e.g. Fig. 16.
- the fields marked with “G” are green and the fields marked with “R” are red.
- the optical feedback from the machine e.g. the green tick from FIG. 14 in the event of a successful test and the red cross in FIG. 15 in the event of a failure can be recognized.
- the robot thus has the appropriate sensor system for recording the feedback output by the medical device or the machine in the form of a visual / optical signal and records this feedback accordingly. Reading out a QR code in order to be able to interpret the error message more precisely cannot be carried out with the color sensor. A modified QR color code can be used for this.
- the test procedure in connection with a color sensor is explained in more detail below.
- the protective conductor resistance measurement is identical to the measurement described above, only this is carried out here without a camera. It is therefore particularly important that the machine is positioned exactly so that the robot can approach the measuring points without further optical guidance / orientation using the camera and configure the protective conductor test device.
- the color sensor cannot be used to measure the protective conductor resistance.
- the color sensor can be used for all steps or only for the most necessary steps. Steps that require the color sensor are the signal light / traffic light signal color test and the final check to ensure that all tests have been completed without errors.
- the robot with the color sensor moves through all the display fields of the individual test points for the test “test procedure” from FIG. 12 at the end of the test.
- the color sensor With the color sensor, however, an error message could be detected and processed during the boot process.
- the test procedure testing software would have to be modified at various points with multi-colored images, for example in red-green-black.
- a barcode scanner is used to check the serial number on the nameplate. This could also be used for the screen to compare the two serial numbers. The robot gripper can then correct this or acknowledge it immediately.
- the color sensor can stably distinguish eight colors with a constant light source. To do this, it records the RGB colors of the source. These are then specified in an interval for this color and whenever the RGB colors are within this interval, the corresponding color is recorded or reported back.
- a number pad is preferably displayed next to the QR color code.
- the robot can send back the input read out as numerical feedback. This ensures that the color sensor system has correctly read the QR color code.
- the position finding of the machine via the signal traffic light with the camera can only be realized up to a tolerance of +/- 5 mm. To achieve higher positional accuracy, too many components subject to tolerances are included in the cycle of action.
- the display unit or the monitor of the machine should be used for fine adjustment.
- the robot presses the screen, preferably with a gripper tip, at four defined points with a preset force, see black ellipses in FIG. 22. These pressed points are recognized by the screen and returned as coordinate feedback. The number of pressed points can be set as desired. In FIG. 22, the defined points which the robot touches are identified by the reference symbol 12. The number of defined points can be set as required.
- the feedback takes place once in the form of a QR code for the camera system and a readable code for a user.
- the exact plane in which the screen of the machine is located can be determined.
- the fourth point is only used for safety and is included in the calculation of the plane in order to achieve greater accuracy. From this level, the exact orientation and the distance to the global coordinate system of the robot can be inferred.
- a verification step can optionally be used to check whether the fine adjustment was successful.
- the screen specifies a specific coordinate point in the form of a QR code.
- the robot's camera system reads this out and the robot tries to scan it optically and / or haptically, e.g. to hit with his gripper arm as precisely as possible. If the point tapped with the robot gripper lies within a tolerance range for the specified coordinate point, the verification is successful and the “Select Process” main menu, as shown in FIG. 11, is called up.
- FIG. 23 the fine adjustment process is shown again in the form of a program flow chart.
- a result XML file (Extensible Markup Language) is written by the machine with the test results.
- This file is transferred when the machine is connected to a server.
- This determines the original file and sends it with the test results from the protective conductor resistance measurement to the server via the robot network. This allows a large amount of data to be transferred relatively quickly.
- the machine can be designed for communication via QR stream.
- FIG. 24 It would therefore also be possible to implement a purely or completely optical communication interface between the machine and the robot, see FIG. 24.
- the robot only needs a small monitor, for example on the camera housing, in order to be able to stream the QR codes.
- the machine would also need a camera.
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- Business, Economics & Management (AREA)
- General Business, Economics & Management (AREA)
- Epidemiology (AREA)
- General Health & Medical Sciences (AREA)
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Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019117117.2A DE102019117117A1 (de) | 2019-06-25 | 2019-06-25 | Verfahren zum automatisierten Prüfen eines Medizingeräts sowie automatisiertes Testsystem für ein Medizingerät |
| PCT/EP2020/067662 WO2020260373A1 (de) | 2019-06-25 | 2020-06-24 | Verfahren zum automatisierten prüfen eines medizingeräts sowie voll-automatisiertes testsystem für ein medizingerät |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3991177A1 true EP3991177A1 (de) | 2022-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20737369.7A Pending EP3991177A1 (de) | 2019-06-25 | 2020-06-24 | Verfahren zum automatisierten prüfen eines medizingeräts sowie voll-automatisiertes testsystem für ein medizingerät |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3991177A1 (de) |
| DE (1) | DE102019117117A1 (de) |
| WO (1) | WO2020260373A1 (de) |
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| DE102023120216A1 (de) | 2023-07-28 | 2025-01-30 | Fricke Abfülltechnik GmbH & Co. KG | Arbeitsplatz an einer Duftorgel |
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| KR100624387B1 (ko) * | 2005-04-25 | 2006-09-20 | 엘지전자 주식회사 | 주행영역 지정이 가능한 로봇 시스템 |
| US7997847B2 (en) * | 2007-12-10 | 2011-08-16 | Robotic Systems & Technologies, Inc. | Automated robotic system for handling surgical instruments |
| US8761938B2 (en) * | 2008-04-18 | 2014-06-24 | David Jenkinson | Robotic device tester |
| JP2013022705A (ja) * | 2011-07-25 | 2013-02-04 | Sony Corp | ロボット装置及びロボット装置の制御方法、コンピューター・プログラム、並びにロボット・システム |
| CN102355052A (zh) * | 2011-07-30 | 2012-02-15 | 山东电力研究院 | 基于变电站智能机器人巡检系统及其变电站操作监护方法 |
| US9138895B2 (en) * | 2014-01-10 | 2015-09-22 | Recognition Robotics, Inc. | Method for picking up an article using a robot arm and associated system |
| US20160121487A1 (en) * | 2014-11-03 | 2016-05-05 | Qualcomm Incorporated | Communicating Configurable Instruction Sets to Robots for Controlling Robot Behavior |
| CA3029968C (en) * | 2016-07-18 | 2024-06-04 | Lael Odhner | Training robotic manipulators |
| CN109108982B (zh) * | 2018-10-10 | 2024-01-09 | 烟台大学 | 基于标准量具的多关节机器人几何尺寸精度校准装置及校准方法 |
| US11117263B2 (en) * | 2018-11-13 | 2021-09-14 | Zebra Technologies Corporation | Method and apparatus for labeling of support structures |
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2019
- 2019-06-25 DE DE102019117117.2A patent/DE102019117117A1/de active Pending
-
2020
- 2020-06-24 EP EP20737369.7A patent/EP3991177A1/de active Pending
- 2020-06-24 WO PCT/EP2020/067662 patent/WO2020260373A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020260373A1 (de) | 2020-12-30 |
| DE102019117117A1 (de) | 2020-12-31 |
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