DE19539131C1 - Appts. for determining fullness of human bladder - Google Patents
Appts. for determining fullness of human bladderInfo
- Publication number
- DE19539131C1 DE19539131C1 DE1995139131 DE19539131A DE19539131C1 DE 19539131 C1 DE19539131 C1 DE 19539131C1 DE 1995139131 DE1995139131 DE 1995139131 DE 19539131 A DE19539131 A DE 19539131A DE 19539131 C1 DE19539131 C1 DE 19539131C1
- Authority
- DE
- Germany
- Prior art keywords
- bladder
- piezoelectric elements
- ultrasound energy
- location
- determining
- 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.)
- Expired - Fee Related
Links
- 238000002604 ultrasonography Methods 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 5
- 210000003815 abdominal wall Anatomy 0.000 claims description 4
- 239000000696 magnetic material Substances 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 239000011324 bead Substances 0.000 claims 1
- 210000001015 abdomen Anatomy 0.000 abstract 1
- 210000003932 urinary bladder Anatomy 0.000 description 22
- 206010046543 Urinary incontinence Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 230000002485 urinary effect Effects 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/20—Measuring for diagnostic purposes; Identification of persons for measuring urological functions restricted to the evaluation of the urinary system
- A61B5/202—Assessing bladder functions, e.g. incontinence assessment
- A61B5/204—Determining bladder volume
-
- 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
- G01F23/296—Acoustic waves
-
- 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
- G01F23/296—Acoustic waves
- G01F23/2962—Measuring transit time of reflected waves
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Biophysics (AREA)
- Medical Informatics (AREA)
- Physiology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Urology & Nephrology (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zum Bestimmen des Füllstands der menschlichen Harnblase.The invention relates to a device for determining the level of the human bladder.
Die Harninkontinenz, also die Unfähigkeit, die Harnblase zu steuern, ist ein häufig auftretendes, überaus lästi ges Leiden; die Abschätzung der sich jeweils in der Bla se befindlichen Urinmenge ist für die pflegerische Ar beit von großer Bedeutung. The urinary incontinence, i.e. the inability to the bladder steering is a common and extremely annoying task suffering; the estimate of each in the Bla The amount of urine present is for the nursing ar of great importance.
Aus der DE 35 26 164 A1 ist es bekannt, den Füllgrad der menschlichen Blase durch Auswerten der Signale eines an oder in der Blasenwand befestigten Ultraschallgebers zu ermitteln. In ähnlicher Weise wird in der DE 39 32 718 A1 vorgeschlagen, zwei Ultraschallsensor mit Abstand voneinander an der Blasenwand zu befestigen, deren Abstand zu ermitteln und so den Füllgrad der Blase zu bestimmen.From DE 35 26 164 A1 it is known to fill the human bladder by evaluating the signals of an or ultrasound generator attached in the bladder wall determine. Similarly, DE 39 32 718 A1 suggested two ultrasonic sensors at a distance to attach each other to the bladder wall, the Determine distance and so the filling level of the bubble too determine.
Gegenstand der US 4 852 578 und der US 4 926 871 sind Vorrichtungen, bei denen der Füllgrad der Blase durch eine Auswertung des von der Blase genommenen Ultra schallbildes bestimmt wird.The subject of US 4,852,578 and US 4,926,871 are Devices in which the degree of filling of the bladder through an evaluation of the ultra taken from the bladder sound image is determined.
Die erstgenannten Vorrichtungen setzen einen operativen Eingriff voraus, um die Referenzkörper an oder der Bla senwand zu befestigten, die letztgenannten Vorrichtungen erlauben auch bei hohem rechnerischen Aufwand keine zu verlässige Aussage über den Füllgrad der Blase.The former devices set an operative Intervention ahead to the reference body or the Bla to fix senwand, the latter devices do not allow any even with high computational effort reliable statement about the degree of filling of the bladder.
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrich tung zum zuverlässigen Bestimmen des Füllstands der menschlichen Harnblase unter Verwendung von Referenzkör pern zu schaffen, bei dem ein operativer Eingriff zum Anordnen der Referenzkörper nicht erforderlich ist.The invention has for its object a Vorrich device for reliably determining the fill level of the human bladder using reference body pern to create, in which an operative intervention to Arranging the reference body is not necessary.
Erfindungsgemäß wird diese Aufgabe durch die im kenn zeichnenden Teil des Anspruchs 1 bzw. des Anspruchs 2 angegebenen Merkmale gelöst. Die Unteransprüche geben vorteilhafte Ausgestaltungen dieser Vorrichtungen an.According to the invention, this task is characterized by the Drawing part of claim 1 and claim 2 specified features solved. Give the subclaims advantageous embodiments of these devices.
Die Erfindung wird im folgenden anhand einer Zeichnung erläutert. Dabei zeigt: The invention is described below with reference to a drawing explained. It shows:
Fig. 1 eine schematische Darstellung der Harnbla se, der in diese eingebrachten Körper sowie der auf die Bauchdecke aufgebrachten piezoe lektrischen Elemente in einer Seitenansicht, und Fig. 1 is a schematic representation of the urinary bladder se, the body introduced into this and the piezoe lectric elements applied to the abdominal wall in a side view, and
Fig. 2 eine Darstellung eines bevorzugten Ausfüh rungsbeispiels des ersten Körpers. Fig. 2 is an illustration of a preferred embodiment of the first body.
Zur Bestimmung des Füllstands der Harnblase wird ein erster Körper 12, dessen Dichte weniger als 1 g/cm³ be trägt und das aus einem Ultraschall reflektierenden Material besteht, über ein - nicht gezeigtes - Harnröh renkatheter in die Harnblase eingeführt.To determine the level of the bladder, a first body 12 , the density of which is less than 1 g / cm³ and which consists of an ultrasound reflecting material, is inserted into the bladder via a urethral catheter (not shown).
Zwei piezoelektrische Elemente 14, 16 werden in un terschiedlicher Höhe zur Harnblase 10 auf die Bauchdecke aufgebracht und elektrisch verschaltet. Die beiden piezoelektrischen Elemente 14, 16 werden zum Abgeben von Ultraschallenergie elektrisch angeregt. Die von dem Kör per 12 auf die piezoelektrischen Elemente reflektierte Ultraschallenergie wird elektrisch abgefragt, die Lauf zeiten der Ultraschallenergie von den piezoelektrischen Elementen 14, 16 hin zu und zurück von dem Körper 12 wird erfaßt. Aus den Laufzeiten der reflektierten Ultra schallenergie werden durch aus der Peiltechnik bekannte Verfahren der Ort des in die Harnblase eingebrachten und aufgrund seiner geringen Dichte aufschwimmenden Körpers 12 bestimmt.Two piezoelectric elements 14 , 16 are applied at different heights to the bladder 10 on the abdominal wall and electrically connected. The two piezoelectric elements 14 , 16 are electrically excited to emit ultrasonic energy. The ultrasound energy reflected from the body by 12 onto the piezoelectric elements is electrically queried, the transit times of the ultrasound energy from the piezoelectric elements 14 , 16 towards and back from the body 12 are detected. From the transit times of the reflected ultrasound energy, the location of the body introduced into the bladder and floating due to its low density body 12 are determined by methods known from the DF technology.
Aus dem Ort des Körpers 12, d. h. seiner Höhe gegenüber dem Harnblasenausgang, kann rechnerisch auf die Füllung der Harnblase rückgeschlossen werden.From the location of the body 12 , ie its height relative to the urinary bladder outlet, the filling of the urinary bladder can be calculated.
Bei dieser, den Gegenstand des Anspruchs 1 bildenden Vorrichtung wird davon ausgegangen, daß der Ort des Bla senausgangs bekannt ist. Falls dieser Ort jedoch nicht bekannt oder aber sich aufgrund des Füllstands der Bla se, der Lage des Körpers oder sonstige Einflüsse ändert, ist ein zweiter Körper in die Blase einzubringen, dessen Dichte größer als 1 g/cm³ ist. Dieser Körper wird sich damit immer am tiefsten Punkt der Harnblase 10 befinden. Bei einer Bestimmung auch des Orts dieses zweiten Kör pers 20 wird der Füllstand der Blase aus der relativen Ortsbeziehung der beiden Körper 12, 20 zueinander be stimmt.In this, the subject of claim 1 forming the device is assumed that the location of the Bla senausgangs is known. However, if this location is not known or changes due to the filling level of the blister, the position of the body or other influences, a second body must be inserted into the bladder, the density of which is greater than 1 g / cm³. This body will therefore always be at the lowest point of the bladder 10 . When determining the location of this second body 20 , the filling level of the bladder is determined from the relative spatial relationship of the two bodies 12 , 20 to one another.
Es versteht sich, daß bei Verwendung von lediglich zwei piezoelektrischen Elementen der Ort der Körper jeweils nur in der durch die beiden piezoelektrischen Elemente und den Körper 12, 20, dessen Ort jeweils bestimmt wird, aufgespannten Ebene bestimmt werden kann. Dies wird in vielen Anwendungsfällen ausreichend sein, bei Verwendung von drei Piezoelektrischen Elementen können die Orte der Körper 12, 20 jedoch auch in einem dreidimensionalen Sy stem genau bestimmt werden.It is understood that when using only two piezoelectric elements, the location of the body can only be determined in the plane spanned by the two piezoelectric elements and the body 12 , 20 , the location of which is determined in each case. This will be sufficient in many applications, but when using three piezoelectric elements, the locations of the bodies 12 , 20 can also be determined precisely in a three-dimensional system.
Der zweite Körper 20 kann in einem käfigartigen Geflecht gefangen sein, damit ein Verschluß des Harnausgangs durch diese sich ja jeweils am Boden der Blase befindli chen Körpers 20 verhindert wird. Dieses käfigartige Geflecht kann so ausgebildet sein, daß es sich bei dem Einführen eng an die Innenwandung des Katheters anlegt und sich erst bei Erreichen der Blase aufspannt.The second body 20 can be trapped in a cage-like network, so that a closure of the urinary outlet is prevented by this body 20 located on the bottom of the bladder. This cage-like braid can be designed in such a way that it fits tightly against the inner wall of the catheter during insertion and is only stretched when the bladder is reached.
Bei der in Fig. 2 dargestellten Ausbildung des ersten Körpers 12 durch drei miteinander über Distanzhalter 12d miteinander verbundene Elemente 12a, 12b, 12c wird sich dieser an die Decke der Blase anlegen. Dies erlaubt es, die Lage der Decke der Blase im Raum relativ zu dem Bla senausgang zu bestimmen. Diese erlaubt eine besonders genaue Bestimmung des jeweiligen Füllstands.In the embodiment of the first body 12 shown in FIG. 2 by means of three elements 12 a, 12 b, 12 c which are connected to one another via spacers 12 d, the latter will lie against the ceiling of the bladder. This allows the position of the ceiling of the bubble in the room to be determined relative to the bubble outlet. This allows a particularly precise determination of the respective fill level.
Die weiter vorgeschlagene Ausbildung der Körper 12, 20 aus einem magnetischen Material hat den Sinn, das - etwa erforderliche - Einfangen der Körper 12, 20 zu deren Entfernen durch ein Harnröhren-Katheter unter Einsatz eines magnetisierbaren Fängers zu erleichtern.The further proposed formation of the bodies 12 , 20 from a magnetic material has the purpose of facilitating the - possibly necessary - trapping of the bodies 12 , 20 for their removal by means of a urethral catheter using a magnetizable catcher.
Claims (6)
wenigstens zwei im Bereich der Bauchdecke in unter schiedlicher Höhe zu der Harnblase (10) aufzubringenden piezoelektrischen Elementen (14, 16),
Mitteln zum elektrischen Anregen der beiden piezoelek trischen Elemente (14, 16) zum Abgeben von Ultraschall energie,
Mitteln zum elektrischen Abfragen der von einem in die Harnblase eingebrachten Körper (12) mit einer Dichte < 1 aus einem Ultraschall reflektierenden Material auf die piezoelektrischen Elemente (16, 18) reflektierten Ultraschallenergie,
Mitteln zum Bestimmen des Orts des in die Harnblase (14) eingebrachten Körpers (12) aus den Laufzeiten der reflektierten Ultraschallenergie, und
Mitteln zum Berechnen des Füllstands der Blase (10) aus dem Ort des Körpers (12). 1. Device for determining the level of the human bladder ( 10 ) with
at least two piezoelectric elements ( 14 , 16 ) to be applied in the region of the abdominal wall at different heights to the bladder ( 10 ),
Means for electrically exciting the two piezoelectric elements ( 14 , 16 ) for emitting ultrasound energy,
Means for electrically interrogating the ultrasound energy reflected by a body ( 12 ) introduced into the bladder with a density <1 from an ultrasound reflecting material onto the piezoelectric elements ( 16 , 18 ),
Means for determining the location of the body ( 12 ) introduced into the bladder ( 14 ) from the transit times of the reflected ultrasound energy, and
Means for calculating the level of the bladder ( 10 ) from the location of the body ( 12 ).
wenigstens zwei im Bereich der Bauchdecke in unter schiedlicher Höhe zu der Harnblase (10) anzuordnenden piezoelektrischen Elementen (14, 16),
Mitteln zum elektrischen Anregen der beiden piezoelek trischen Elemente (14, 16) zum Abgeben von Ultraschall energie,
Mitteln zum elektrischen Abfragen der von einem in die Harnblase eingebrachten ersten Körper (12) mit einer Dichte < 1 aus einem Ultraschall reflektierenden Mate rial und der der von einem in die Harnblase eingebrach ten zweiten Körper (20) mit einer Dichte < 1 aus einem Ultraschall reflektierenden Material auf die piezoelek trischen Elemente (16, 18) reflektierten Ultraschall energie,
Mitteln zum Bestimmen des Orts der beiden in die Harn blase (10) eingebrachten Körper (12, 20) aus den Lauf zeiten der reflektierten Ultraschallenergie, und
Mitteln zum Berechnen des Füllstands der Blase (10) aus dem Ort der beiden Körper (12, 20).2. Device for determining the level of the human bladder ( 10 ) with:
at least two piezoelectric elements ( 14 , 16 ) to be arranged in the region of the abdominal wall at different heights to the bladder ( 10 ),
Means for electrically exciting the two piezoelectric elements ( 14 , 16 ) for emitting ultrasound energy,
Means for electrical interrogation of the first body ( 12 ) introduced into the bladder with a density <1 from an ultrasound reflecting material and that of a second body ( 20 ) introduced into the bladder with a density <1 from an ultrasound reflective material on the piezoelectric elements ( 16 , 18 ) reflected ultrasound energy,
Means for determining the location of the two bodies ( 12 , 20 ) introduced into the bladder ( 10 ) from the running times of the reflected ultrasound energy, and
Means for calculating the level of the bladder ( 10 ) from the location of the two bodies ( 12 , 20 ).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1995139131 DE19539131C1 (en) | 1995-10-20 | 1995-10-20 | Appts. for determining fullness of human bladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1995139131 DE19539131C1 (en) | 1995-10-20 | 1995-10-20 | Appts. for determining fullness of human bladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE19539131C1 true DE19539131C1 (en) | 1996-11-28 |
Family
ID=7775376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1995139131 Expired - Fee Related DE19539131C1 (en) | 1995-10-20 | 1995-10-20 | Appts. for determining fullness of human bladder |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE19539131C1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000033738A1 (en) * | 1998-12-04 | 2000-06-15 | The Johns Hopkins University | Telemetric in vivo bladder monitoring system |
| DE102008040266A1 (en) * | 2008-07-09 | 2010-01-14 | Biotronik Crm Patent Ag | Implantable measuring arrangement |
| DE102010045652A1 (en) | 2010-09-17 | 2012-03-22 | Universität Zu Lübeck | Artificial bladder has three-dimensional acceleration sensor to determine level of urine in bladder structure based on position of bladder structure and pressure acting on inner wall of bladder structure |
| DE102011090201B3 (en) * | 2011-12-30 | 2013-05-16 | Dualis Medtech Gmbh | Device for detecting filling level of hollow organ such as blister or intestine of human or animal patient, has filling level detector, where signal is displayable relating to filling level of hollow organ by filling level detector |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3526164A1 (en) * | 1985-07-22 | 1987-01-22 | Mueller Wickop Juergen Dr | DEVICE FOR DETERMINING THE FILLING LEVEL OF THE HUMAN BUBBLE |
| US4805628A (en) * | 1982-12-06 | 1989-02-21 | Indianapolis Center For Advanced Research, Inc. | Ultrasound contrast media for medically implantable and insertable devices |
| US4852578A (en) * | 1986-11-13 | 1989-08-01 | The United State Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Rapidly quantifying the relative distention of a human bladder |
| US4926871A (en) * | 1985-05-08 | 1990-05-22 | International Biomedics, Inc. | Apparatus and method for non-invasively and automatically measuring the volume of urine in a human bladder |
-
1995
- 1995-10-20 DE DE1995139131 patent/DE19539131C1/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4805628A (en) * | 1982-12-06 | 1989-02-21 | Indianapolis Center For Advanced Research, Inc. | Ultrasound contrast media for medically implantable and insertable devices |
| US4926871A (en) * | 1985-05-08 | 1990-05-22 | International Biomedics, Inc. | Apparatus and method for non-invasively and automatically measuring the volume of urine in a human bladder |
| DE3526164A1 (en) * | 1985-07-22 | 1987-01-22 | Mueller Wickop Juergen Dr | DEVICE FOR DETERMINING THE FILLING LEVEL OF THE HUMAN BUBBLE |
| US4852578A (en) * | 1986-11-13 | 1989-08-01 | The United State Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Rapidly quantifying the relative distention of a human bladder |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000033738A1 (en) * | 1998-12-04 | 2000-06-15 | The Johns Hopkins University | Telemetric in vivo bladder monitoring system |
| DE102008040266A1 (en) * | 2008-07-09 | 2010-01-14 | Biotronik Crm Patent Ag | Implantable measuring arrangement |
| DE102010045652A1 (en) | 2010-09-17 | 2012-03-22 | Universität Zu Lübeck | Artificial bladder has three-dimensional acceleration sensor to determine level of urine in bladder structure based on position of bladder structure and pressure acting on inner wall of bladder structure |
| DE102011090201B3 (en) * | 2011-12-30 | 2013-05-16 | Dualis Medtech Gmbh | Device for detecting filling level of hollow organ such as blister or intestine of human or animal patient, has filling level detector, where signal is displayable relating to filling level of hollow organ by filling level detector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69127629T2 (en) | CATHETER WITH CIRCULAR ULTRASONIC CONVERTER | |
| EP0668488A2 (en) | Device for measuring the filling level of a container | |
| DE102017101476B3 (en) | Locating an object in an environment of a motor vehicle by an ultrasonic sensor system | |
| DE3407465A1 (en) | METHOD AND DEVICE FOR IDENTIFYING PARTICLES IN A FLOW | |
| EP1664838A1 (en) | Method and computer program for the detection of the contour of an obstacle in the surroundings of a vehicle | |
| EP0105220B1 (en) | Apparatus for producing images of an object under examination with nuclear magnetic resonance | |
| DE2703439B2 (en) | Device for measuring physical quantities of a liquid with two ultrasonic transducers | |
| DE4241161A1 (en) | High power focussed acoustic pulse generator for clinical use - has pressure sensors for determining spatial position of treated region as function of time, electric motors for adjusting focus of acoustic waves to area to be treated over three=dimensional coordinates, and fuzzy logic controller | |
| DE102009006214B4 (en) | Method for providing a representation of the surroundings of a vehicle | |
| DE2329387A1 (en) | PROCEDURE AND EQUIPMENT FOR ULTRASONIC TESTING OF AN OBJECT | |
| DE4344509A1 (en) | Measuring acoustic back scattering characteristics of water floor esp. sea-bed | |
| DE19539131C1 (en) | Appts. for determining fullness of human bladder | |
| DE3743822C2 (en) | ||
| DE102005017536B4 (en) | ultrasonic sensor | |
| DE10030628A1 (en) | Liquid level measuring system | |
| EP0010797A1 (en) | Method and devices for determining the contour of a body for the reconstruction of an absorption distribution in a plane examined area of this body | |
| DE69902296T2 (en) | EVACUATION DEVICE | |
| DE3526164A1 (en) | DEVICE FOR DETERMINING THE FILLING LEVEL OF THE HUMAN BUBBLE | |
| DE19939793A1 (en) | Active helical scanner for detecting structure embedded in medium in three-dimensional mode has pitch of spiral-shaped movement path less than width of overlap between receiving and emission spaces | |
| DE102020206001A1 (en) | Method and device for classifying the height of an object detected by ultrasound | |
| DE4014990A1 (en) | Liquid lever measurement arrangement - uses ultrasonic pulse reflection from surface and transition time measurement for use with moving or static liquid e.g. in vehicle fuel tank | |
| DE60026782T2 (en) | ultrasound probe | |
| WO2002063247A2 (en) | Method and device for rough detection of a filling material in a container in liquid or bulk material | |
| DE102022115035A1 (en) | RADAR MARKER | |
| DE3038900A1 (en) | "METHOD FOR CLASSIFYING UNDERWATER OBJECTS" |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8100 | Publication of the examined application without publication of unexamined application | ||
| D1 | Grant (no unexamined application published) patent law 81 | ||
| 8364 | No opposition during term of opposition | ||
| 8327 | Change in the person/name/address of the patent owner |
Owner name: TRICUMED MEDIZINTECHNIK GMBH, 24143 KIEL, DE |
|
| 8339 | Ceased/non-payment of the annual fee |