DE102015219263A1 - Pump for a tribological load sensor ventricular assist device and use - Google Patents
Pump for a tribological load sensor ventricular assist device and use Download PDFInfo
- Publication number
- DE102015219263A1 DE102015219263A1 DE102015219263.6A DE102015219263A DE102015219263A1 DE 102015219263 A1 DE102015219263 A1 DE 102015219263A1 DE 102015219263 A DE102015219263 A DE 102015219263A DE 102015219263 A1 DE102015219263 A1 DE 102015219263A1
- Authority
- DE
- Germany
- Prior art keywords
- pump
- tribological
- tribological stress
- stress sensor
- sensor
- 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- Withdrawn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
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/50—Details relating to control
- A61M60/508—Electronic control means, e.g. for feedback regulation
- A61M60/515—Regulation using real-time patient data
- A61M60/531—Regulation using real-time patient data using blood pressure data, e.g. from blood pressure sensors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0001—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means
- G01L9/0005—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using variations in capacitance
-
- 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
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/10—Location thereof with respect to the patient's body
- A61M60/122—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body
- A61M60/165—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable in, on, or around the heart
- A61M60/178—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable in, on, or around the heart drawing blood from a ventricle and returning the blood to the arterial system via a cannula external to the ventricle, e.g. left or right ventricular assist 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
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/10—Location thereof with respect to the patient's body
- A61M60/122—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body
- A61M60/196—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body replacing the entire heart, e.g. total artificial hearts [TAH]
-
- 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
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/20—Type thereof
- A61M60/205—Non-positive displacement blood pumps
- A61M60/216—Non-positive displacement blood pumps including a rotating member acting on the blood, e.g. impeller
-
- 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
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/20—Type thereof
- A61M60/247—Positive displacement blood pumps
- A61M60/253—Positive displacement blood pumps including a displacement member directly acting on the blood
-
- 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
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/80—Constructional details other than related to driving
- A61M60/802—Constructional details other than related to driving of non-positive displacement blood pumps
- A61M60/81—Pump housings
- A61M60/816—Sensors arranged on or in the housing, e.g. ultrasound flow sensors
-
- 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
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/80—Constructional details other than related to driving
- A61M60/802—Constructional details other than related to driving of non-positive displacement blood pumps
- A61M60/818—Bearings
- A61M60/824—Hydrodynamic or fluid film bearings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
- G01K13/026—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow of moving liquids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/20—Clinical contact thermometers for use with humans or animals
-
- 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
- A61M2230/00—Measuring parameters of the user
- A61M2230/50—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/12—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
- F16C17/24—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired positions, e.g. for preventing overheating, for safety
- F16C17/243—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired positions, e.g. for preventing overheating, for safety related to temperature and heat, e.g. for preventing overheating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
- F16C19/525—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to temperature and heat, e.g. insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2233/00—Monitoring condition, e.g. temperature, load, vibration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2316/00—Apparatus in health or amusement
- F16C2316/10—Apparatus in health or amusement in medical appliances, e.g. in diagnosis, dentistry, instruments, prostheses, medical imaging appliances
- F16C2316/18—Pumps for pumping blood
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Cardiology (AREA)
- Animal Behavior & Ethology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Mechanical Engineering (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Medical Informatics (AREA)
- Fluid Mechanics (AREA)
- External Artificial Organs (AREA)
Abstract
Die Erfindung betrifft die Verwendung eines tribologischen Beanspruchungssensors (10) in einer Pumpe (100) eines ventrikulären Unterstützungssystems (1000) zur Abschätzung einer tribologischen Beanspruchung der Pumpe (100) sowie eine solche Pumpe (100) mit einem tribologischen Beanspruchungssensor (10).The invention relates to the use of a tribological stress sensor (10) in a pump (100) of a ventricular assisting system (1000) for estimating tribological stress on the pump (100) and to a pump (100) having a tribological stress sensor (10).
Description
Stand der TechnikState of the art
Herzunterstützungssysteme, auch ventrikuläre Unterstützungssysteme genannt, werden bei schweren Herzerkrankungen zur Unterstützung der Pumpfunktion des Herzens eingesetzt. Beispielsweise ist aus
Tribologische Beanspruchungssensoren, wie beispielsweise aus
Offenbarung der ErfindungDisclosure of the invention
Vorteile der Erfindung Advantages of the invention
Die Erfindung betrifft eine Pumpe für ein ventrikuläres Unterstützungssystem, wobei die Pumpe mindestens einen tribologischen Beanspruchungssensor umfasst. Unter einem ventrikulären Unterstützungssystem kann insbesondere ein Herzunterstützungssystem oder ein künstliches Herz verstanden werden. The invention relates to a pump for a ventricular assist system, the pump comprising at least one tribological stress sensor. In particular, a ventricular assist system can be understood to mean a cardiac assist system or an artificial heart.
Die Erfindung beruht auf der Erkenntnis, dass tribologische Beanspruchungssensoren, welche in mechanischen Systemen mit hohen Beanspruchungen zum Einsatz kommen, auch auf dem Gebiet der Herzmedizintechnik vorteilhafterweise eingesetzt werden können. Ein tribologischer Beanspruchungssensor kann dabei insbesondere für eine Messung eines Blutdrucks und somit eines Kontaktdrucks zwischen Blut und Pumpe und/oder für eine Messung einer Bluttemperatur und somit einer Temperatur von mit dem Blut in Kontakt stehenden Teilen der Pumpe verwendet werden. Neben der vorteilhaften Bestimmung von Blutdruck und Bluttemperatur für medizinische Zwecke, beispielsweise für eine Überwachung einer medizinischen Konstitution eines Patienten, kann aus einer Messung dieser Größen vorteilhafterweise eine tribologische Beanspruchung der Pumpe abgeschätzt werden. Beispielsweise kann als tribologischer Beanspruchungssensor ein in
In einer vorteilhaften Weiterbildung der Erfindung ist der mindestens eine tribologische Beanspruchungssensor auf einem beweglichen Bauteil der Pumpe angeordnet. Dies hat den Vorteil, dass physikalische Eigenschaften wie Druck oder Temperatur eines an dem Bauteil vorbeifließenden Blutes gemessen werden können. Somit kann vorteilhafterweise eine tribologische Beanspruchung auf das bewegliche Bauteil in einer direkten Umgebung um den Sensor abgeschätzt werden. Beispielsweise ist der mindestens eine tribologische Beanspruchungssensor auf einer Welle oder auf einem Verdrängerbauteil der Pumpe angeordnet, beispielsweise auf einem Impeller, auf einer Turbinschaufel, auf einem Zahnrad, auf einem Flügel, auf einem Schraubenrotor oder auf einem Schneckenrotor. Bei einer Verwendung des aus
Vorzugsweise ist der tribologische Beanspruchungssensor in einer Vertiefung einer Oberfläche des Bauteils der Pumpe angeordnet. Die Anordnung in einer solchen Vertiefung oder Ausnehmung des Bauteils hat den Vorteil, dass der Fluss eines am entlang des Bauteils bewegten Blutes durch die Anwesenheit des Sensors nur minimal beeinflusst wird. Ferner hat die Anordnung in der Vertiefung den Vorteil, dass der tribologische Beanspruchungssensor durch die Vertiefung im Gegensatz zu einer Anordnung ohne Vertiefung stärker vor Abnutzung geschützt wird. Bevorzugt ist eine Höhe, vorzugsweise ein Volumen, der Vertiefung derart gewählt, dass durch die Anordnung des tribologischen Beanspruchungssensors in der Vertiefung ein bündiger Abschluss einer Oberfläche des tribologische Beanspruchungssensors mit einem Bereich um die Vertiefung erreicht ist.Preferably, the tribological stress sensor is arranged in a depression of a surface of the component of the pump. The arrangement in such a depression or recess of the component has the advantage that the flow of blood moving along the component is only minimally affected by the presence of the sensor. Furthermore, the arrangement in the recess has the advantage that the tribological stress sensor is protected by the recess in contrast to an arrangement without recess more resistant to wear. Preferably, a height, preferably a volume, of the depression is selected such that a flush closure of a surface of the tribological stress sensor with a region around the depression is achieved by the arrangement of the tribological stress sensor in the depression.
Gemäß einer vorteilhaften Weiterbildung der Erfindung weist der tribologische Beanspruchungssensor eine Länge zwischen 1 Nanometer (nm) und 2000 Mikrometer (µm) und/oder einer Breite zwischen 1 nm und 50 µm und/oder eine Dicke 1 nm und 1 µm auf. Diese Abmessungen haben den Vorteil, dass der tribologische Beanspruchungssensor im Vergleich zu einer typischen Größe einer Herzpumpe sehr klein ausgeführt und somit an fast jeder beliebigen Stelle in und auf der Pumpe angebracht werden kann, ohne dass die Funktionstüchtigkeit des Sensors hierdurch beeinträchtigt wäre. According to an advantageous development of the invention, the tribological stress sensor has a length between 1 nanometer (nm) and 2000 micrometers (μm) and / or a width between 1 nm and 50 μm and / or a thickness of 1 nm and 1 μm. These dimensions have the advantage that the tribological stress sensor can be made very small in comparison to a typical size of a heart pump and thus can be mounted almost anywhere in and on the pump, without the functionality of the sensor would be affected.
In einer vorteilhaften Weiterbildung der Erfindung umfasst die Pumpe eine mit dem mindestens einen tribologischen Beanspruchungssensor verbundene Schnittstelle zur Datenübertragung. Dies hat den Vorteil, dass durch den Sensor erfasste Messwerte für eine Auswertung über die Schnittstelle übermittelt werden können. Vorzugsweise ist die Schnittstelle für eine drahtlose Datenübertragung eingerichtet, beispielsweise über Bluetooth® oder ZigBee. Dies hat den Vorteil, dass die erfassten Messwerte außerhalb des Körpers des Patienten weiterverarbeitet werden können.In an advantageous embodiment of the invention, the pump comprises an interface connected to the at least one tribological stress sensor for data transmission. This has the advantage that measured values acquired by the sensor can be transmitted for evaluation via the interface. Preferably, the interface is for wireless data transmission set up, for example via Bluetooth ® or ZigBee. This has the advantage that the acquired measured values can be further processed outside the body of the patient.
Die Erfindung umfasst auch ein ventrikuläres Unterstützungssystem mit mindestens einer erfindungsgemäßen Pumpe. The invention also includes a ventricular assist system with at least one pump according to the invention.
Ferner umfasst die Erfindung die Verwendung eines tribologischen Beanspruchungssensors in einer Pumpe eines ventrikulären Unterstützungssystems, insbesondere zur Messung einer Bluttemperatur und/oder eines Blutdrucks. Damit können vorteilhafterweise Blutdruck und/oder Bluttemperatur für medizinische Zwecke bestimmt werden, beispielsweise für eine Überwachung einer medizinischen Konstitution eines Patienten. Vorzugsweise werden ein oder mehrere tribologische Beanspruchungssensoren in der Pumpe für eine Abschätzung einer tribologischen Beanspruchung der Pumpe verwendet. Eine solche Verwendung hat den Vorteil, dass eine kontinuierliche Überwachung der Betriebsfunktion der Pumpe über die dem tribologischen Beanspruchungssensor zugänglichen physikalischen Messgrößen ermöglicht wird. Bei diesen Messgrößen kann es sich beispielsweise um einen Blutdruck in der Umgebung des Sensors und somit auf den Sensor oder einer Bluttemperatur in einer Umgebung und somit an einer Grenzfläche zu dem Sensor handeln. Durch eine kontinuierliche Aufzeichnung der gemessenen Sensorwerte kann über tribologische Modelle die tribologische Beanspruchung der Pumpe abgeschätzt werden. Furthermore, the invention comprises the use of a tribological stress sensor in a pump of a ventricular assist system, in particular for measuring a blood temperature and / or a blood pressure. Thus, blood pressure and / or blood temperature can advantageously be determined for medical purposes, for example for monitoring a medical constitution of a patient. Preferably, one or more tribological stress sensors in the pump are used to estimate tribological stress on the pump. Such a use has the advantage that a continuous monitoring of the operating function of the pump is made possible by the physical measured variables which are accessible to the tribological load sensor. By way of example, these measured variables may be a blood pressure in the vicinity of the sensor and thus the sensor or a blood temperature in an environment and thus at an interface with the sensor. By continuous recording of the measured sensor values, the tribological load of the pump can be estimated via tribological models.
In einer vorteilhaften Ausgestaltung der Erfindung wird für die Abschätzung der tribologischen Beanspruchung ein Blutdruck eines durch die Pumpe verdrängten Blutes gemessen. Da das durch die Pumpe verdrängte Blut in direktem Kontakt mit einer Umgebung um den tribologischen Sensor steht, kann über den Blutdruck auf den Druck auf den tribologischen Sensor und somit zumindest auf einen Bereich um die Pumpe geschlossen werden. In an advantageous embodiment of the invention, a blood pressure of a blood displaced by the pump is measured for the estimation of the tribological stress. Since the blood displaced by the pump is in direct contact with an environment around the tribological sensor, the blood pressure can be used to determine the pressure on the tribological sensor and thus at least a region around the pump.
Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung wird für die Abschätzung der tribologischen Beanspruchung eine Temperatur eines durch die Pumpe verdrängten Blutes gemessen. Da das durch die Pumpe verdrängte Blut in direktem Kontakt mit einer Umgebung um den tribologischen Sensor steht, kann über die Bluttemperatur auf die Temperatur zumindest eines Bereichs der Pumpe um den tribologischen Sensor geschlossen werden. According to a further advantageous embodiment of the invention, a temperature of a blood displaced by the pump is measured for the estimation of the tribological stress. Since the blood displaced by the pump is in direct contact with an environment around the tribological sensor, the blood temperature can be used to determine the temperature of at least one region of the pump around the tribological sensor.
In einer vorteilhaften Weiterbildung der Erfindung ist ein tribologischer Beanspruchungssensor an einer Seite eines Spaltes in der Blutpumpe angeordnet. Wie in Absatz [0022] in
In einer weiteren vorteilhaften Ausgestaltung der Erfindung ist der tribologische Beanspruchungssensor derart auf einem Bauteil der Pumpe angeordnet, dass er ein anderes Bauteil der Pumpe kontaktiert. Auf diese Weise kann der tribologische Beanspruchungssensor zur Messung eines Kontakt zwischen den beiden Bauteilen verwendet werden, woraus ebenfalls eine tribologische Beanspruchung abgeleitet werden kann. In a further advantageous embodiment of the invention, the tribological stress sensor is arranged on a component of the pump such that it contacts another component of the pump. In this way, the tribological stress sensor can be used to measure a contact between the two components, from which also a tribological stress can be derived.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Ausführungsbeispiele der Erfindung sind in den Zeichnungen schematisch dargestellt und in der nachfolgenden Beschreibung näher erläutert. Für die in den verschiedenen Figuren dargestellten und ähnlich wirkenden Elemente werden gleiche Bezugszeichen verwendet, wobei auf eine wiederholte Beschreibung der Elemente verzichtet wird. Embodiments of the invention are shown schematically in the drawings and explained in more detail in the following description. The same reference numerals are used for the elements shown in the various figures and similarly acting, wherein a repeated description of the elements is dispensed with.
Es zeigen: Show it:
Ausführungsformen der ErfindungEmbodiments of the invention
Eine elektrische Kontaktierung der Doppel-T-Struktur der Sensorschicht über einen ersten elektrischen Kontakt
Wenn der Spalt
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- US 2013/0303833 A1 [0001] US 2013/0303833 A1 [0001]
- DE 10144269 A1 [0002, 0004, 0005, 0013, 0020, 0020, 0020, 0020, 0022] DE 10144269 A1 [0002, 0004, 0005, 0013, 0020, 0020, 0020, 0020, 0022]
Claims (13)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015219263.6A DE102015219263A1 (en) | 2015-10-06 | 2015-10-06 | Pump for a tribological load sensor ventricular assist device and use |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015219263.6A DE102015219263A1 (en) | 2015-10-06 | 2015-10-06 | Pump for a tribological load sensor ventricular assist device and use |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102015219263A1 true DE102015219263A1 (en) | 2017-04-06 |
Family
ID=58355958
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102015219263.6A Withdrawn DE102015219263A1 (en) | 2015-10-06 | 2015-10-06 | Pump for a tribological load sensor ventricular assist device and use |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102015219263A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021200399A1 (en) | 2021-01-18 | 2022-07-21 | Robert Bosch Gesellschaft mit beschränkter Haftung | Sensor device, mechanical system with sensor device, method for producing a sensor device and use of a sensor device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5702430A (en) * | 1992-08-06 | 1997-12-30 | Electric Boat Corporation | Surgically implantable power supply |
DE10144269A1 (en) | 2001-09-08 | 2003-03-27 | Bosch Gmbh Robert | Sensor element for measuring a physical variable between two bodies which move relative to each other and are subjected to high tribological strain, whereby the element has very high wear resistance to increase its service life |
DE102006036948A1 (en) * | 2006-08-06 | 2008-02-07 | Akdis, Mustafa, Dipl.-Ing. | blood pump |
US20130303833A1 (en) | 2012-05-11 | 2013-11-14 | Heartware, Inc. | Silver motor stator for implantable blood pump |
-
2015
- 2015-10-06 DE DE102015219263.6A patent/DE102015219263A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5702430A (en) * | 1992-08-06 | 1997-12-30 | Electric Boat Corporation | Surgically implantable power supply |
DE10144269A1 (en) | 2001-09-08 | 2003-03-27 | Bosch Gmbh Robert | Sensor element for measuring a physical variable between two bodies which move relative to each other and are subjected to high tribological strain, whereby the element has very high wear resistance to increase its service life |
DE102006036948A1 (en) * | 2006-08-06 | 2008-02-07 | Akdis, Mustafa, Dipl.-Ing. | blood pump |
US20130303833A1 (en) | 2012-05-11 | 2013-11-14 | Heartware, Inc. | Silver motor stator for implantable blood pump |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021200399A1 (en) | 2021-01-18 | 2022-07-21 | Robert Bosch Gesellschaft mit beschränkter Haftung | Sensor device, mechanical system with sensor device, method for producing a sensor device and use of a sensor device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3094951B1 (en) | Capacitive pressure-measuring cell having at least one temperature sensor and pressure measurement method | |
EP2994725B1 (en) | Method and apparatus for monitoring of at least one specific property of a fluid medium for a level measurement | |
DE2706505A1 (en) | PRESSURE TRANSDUCER | |
EP3152530B1 (en) | Method and device for monitoring the level of a medium in a container | |
EP1319935B1 (en) | Signal processing arrangement for a pressure switch or the like | |
DE102011055284A1 (en) | Implantable pressure measuring device | |
DE102011078557A1 (en) | Method for operating an absolute or relative pressure sensor with a capacitive transducer | |
WO2006021295A1 (en) | Device and method for determining the filling level of an ampoule | |
EP2038627A2 (en) | Force sensor and method for detecting at least one force component | |
EP2784462B1 (en) | Capacitative pressure measurement cell for detecting the pressure of a medium adjacent to the measurement cell | |
DE102016110299A1 (en) | Sensor body for a flow-pressure sensor | |
DE102010062622A1 (en) | Method for self-monitoring of a ceramic pressure measuring cell of a capacitive pressure sensor and an evaluation circuit for carrying out the method | |
DE102015219263A1 (en) | Pump for a tribological load sensor ventricular assist device and use | |
DE112016002011T5 (en) | Main resistance measuring device | |
EP3754329B1 (en) | Hydrogen sensor and method for producing the same, measuring device and method for measuring hydrogen concentration | |
EP2543979A2 (en) | Pressure transducer | |
DE102007049526A1 (en) | Medium's i.e. dielectric fluid, process factor determining and/or monitoring device, has probe electrode arranged in such manner that electrode opens out on end surface of sensor unit, where end surface is provided in split-free manner | |
EP3913347A1 (en) | Measuring device for detecting strain in an elastomeric hose | |
WO2010040588A1 (en) | Sensor system and method for operating a sensor system | |
DE102014224222A1 (en) | Capacitive measuring sensor and position measuring device for determining a position of a measuring object and positioning device with such a measuring sensor | |
DE102019101632A1 (en) | Drive device | |
DE102005016812B3 (en) | Measurement device for pressure in a flow channel has a closed flow channel filled by a flow substance and a membrane distorted by changes in pressure | |
EP3572104A1 (en) | Component for conveying a fluid with a sensor | |
DE102014218403B4 (en) | Temperature monitoring of a controlled resonant converter with variable switching frequency | |
DE102014200891B4 (en) | Method for determining the position of a piston in a hydraulic cylinder and method for determining the position of an actuator, and actuator adapted for carrying out the method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R163 | Identified publications notified | ||
R081 | Change of applicant/patentee |
Owner name: KARDION GMBH, DE Free format text: FORMER OWNER: ROBERT BOSCH GMBH, 70469 STUTTGART, DE |
|
R079 | Amendment of ipc main class |
Free format text: PREVIOUS MAIN CLASS: A61M0001100000 Ipc: A61M0060000000 |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |