DE3923079C2 - - Google Patents

Info

Publication number
DE3923079C2
DE3923079C2 DE19893923079 DE3923079A DE3923079C2 DE 3923079 C2 DE3923079 C2 DE 3923079C2 DE 19893923079 DE19893923079 DE 19893923079 DE 3923079 A DE3923079 A DE 3923079A DE 3923079 C2 DE3923079 C2 DE 3923079C2
Authority
DE
Germany
Prior art keywords
syringe
electrically conductive
electrode
drip chamber
capacitor
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 - Lifetime
Application number
DE19893923079
Other languages
German (de)
English (en)
Other versions
DE3923079A1 (de
Inventor
Hans-Dietrich Dr. 6370 Oberursel De Polaschegg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fresenius SE and Co KGaA
Original Assignee
Fresenius SE and Co KGaA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fresenius SE and Co KGaA filed Critical Fresenius SE and Co KGaA
Priority to DE19893923079 priority Critical patent/DE3923079A1/de
Publication of DE3923079A1 publication Critical patent/DE3923079A1/de
Application granted granted Critical
Publication of DE3923079C2 publication Critical patent/DE3923079C2/de
Granted legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies
    • A61M5/1684—Monitoring, detecting, signalling or eliminating infusion flow anomalies by detecting the amount of infusate remaining, e.g. signalling end of infusion
    • 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
    • G01F23/26—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 variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • G01F23/263—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 variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
    • 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
    • G01F23/26—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 variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • G01F23/263—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 variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
    • G01F23/268—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 variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors mounting arrangements of probes
DE19893923079 1989-07-13 1989-07-13 Verfahren und vorrichtung zum messen der fuellstandshoehe von elektrisch leitenden fluessigkeiten Granted DE3923079A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19893923079 DE3923079A1 (de) 1989-07-13 1989-07-13 Verfahren und vorrichtung zum messen der fuellstandshoehe von elektrisch leitenden fluessigkeiten

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19893923079 DE3923079A1 (de) 1989-07-13 1989-07-13 Verfahren und vorrichtung zum messen der fuellstandshoehe von elektrisch leitenden fluessigkeiten

Publications (2)

Publication Number Publication Date
DE3923079A1 DE3923079A1 (de) 1991-01-24
DE3923079C2 true DE3923079C2 (fr) 1991-12-19

Family

ID=6384901

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19893923079 Granted DE3923079A1 (de) 1989-07-13 1989-07-13 Verfahren und vorrichtung zum messen der fuellstandshoehe von elektrisch leitenden fluessigkeiten

Country Status (1)

Country Link
DE (1) DE3923079A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8197450B2 (en) 2005-04-24 2012-06-12 Novo Nordisk A/S Injection device
US8202256B2 (en) 2000-06-16 2012-06-19 Novo Nordisk A/S Injection device
US8226618B2 (en) 2006-05-16 2012-07-24 Novo Nordisk A/S Gearing mechanism for an injection device
US8298194B2 (en) 2006-03-10 2012-10-30 Novo Nordisk A/S Injection device and a method of changing a cartridge in the device
US8353878B2 (en) 2007-03-23 2013-01-15 Novo Nordisk A/S Injection device comprising a locking nut
US8361036B2 (en) 2006-03-10 2013-01-29 Novo Nordisk A/S Injection device having a gearing arrangement
US9192727B2 (en) 2006-05-18 2015-11-24 Novo Nordisk A/S Injection device with mode locking means
US20210123937A1 (en) * 2019-10-24 2021-04-29 Fenwal, Inc. Small volume processing systems and methods with capacitive sensing

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE470179B (sv) * 1992-02-20 1993-11-29 Metpump Ab Pumpanordning för pumpning av smält metall
DE19624215C1 (de) * 1996-06-18 1997-04-03 Tricumed Gmbh Implantierbare Infusionspumpe
DK1804865T3 (da) 2004-10-21 2010-02-01 Novo Nordisk As Neddrejeindstillingsmekanisme til en pen med fjederoptræk
CN101405582B (zh) * 2006-03-20 2012-09-05 诺沃—诺迪斯克有限公司 通过电容装置测定套筒容量
US9008764B2 (en) 2006-03-20 2015-04-14 Novo Nordisk A/S Determination of position of injection needle
US8052655B2 (en) 2006-09-29 2011-11-08 Novo Nordisk A/S Injection device with electronic detecting means
WO2009024562A1 (fr) 2007-08-17 2009-02-26 Novo Nordisk A/S Dispositif médical avec capteur de valeur
RU2491965C2 (ru) 2007-12-31 2013-09-10 Ново Нордиск А/С Инъекционное устройство со средствами электронного контроля
ES2395501B1 (es) * 2011-05-31 2013-12-27 Consejo Superior De Investigaciones Científicas (Csic) Dispositivo para la medición automática de la cantidad de líquido que fluye y el procedimiento para su medición.
CA2861706A1 (fr) 2011-12-29 2013-07-04 Novo Nordisk A/S Mecanisme a disque se deplacant vers le haut/vers le bas pour une seringue automatique
AT516283B1 (de) * 2015-01-28 2016-04-15 Seibersdorf Labor Gmbh Abgabevorrichtung
CN106323415B (zh) * 2016-08-18 2023-05-09 四川泛华航空仪表电器有限公司 电容式油量传感器电容值调整方法
US20220099626A1 (en) * 2018-12-27 2022-03-31 Shimadzu Corporation Method for detecting presence/absence of liquid suctioned by syringe pump, and device with syringe pump

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3701345A (en) * 1970-09-29 1972-10-31 Medrad Inc Angiographic injector equipment
DE2832908A1 (de) * 1978-07-27 1980-02-14 Olympia Werke Ag Anordnung zur abfrage des fuellstandes in einem fluessigkeitsbehaelter
DE3248449A1 (de) * 1982-01-16 1983-07-21 Jastram-Werke GmbH & Co KG, 2050 Hamburg Verfahren zur messung des fluessigkeitsspiegels von elektrisch leitenden medien in fluessigkeitsbehaeltern mit sich veraenderndem fluessigkeitsniveau und eine vorrichtung zur durchfuehrung des verfahrens

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8202256B2 (en) 2000-06-16 2012-06-19 Novo Nordisk A/S Injection device
US8206361B2 (en) 2000-06-16 2012-06-26 Novo Nordisk A/S Injection device
US8267899B2 (en) 2000-06-16 2012-09-18 Novo Nordisk A/S Injection device
US8333739B2 (en) 2000-06-16 2012-12-18 Novo Nordisk A/S Injection device
US8197450B2 (en) 2005-04-24 2012-06-12 Novo Nordisk A/S Injection device
US8298194B2 (en) 2006-03-10 2012-10-30 Novo Nordisk A/S Injection device and a method of changing a cartridge in the device
US8361036B2 (en) 2006-03-10 2013-01-29 Novo Nordisk A/S Injection device having a gearing arrangement
US8226618B2 (en) 2006-05-16 2012-07-24 Novo Nordisk A/S Gearing mechanism for an injection device
US9192727B2 (en) 2006-05-18 2015-11-24 Novo Nordisk A/S Injection device with mode locking means
US8353878B2 (en) 2007-03-23 2013-01-15 Novo Nordisk A/S Injection device comprising a locking nut
US20210123937A1 (en) * 2019-10-24 2021-04-29 Fenwal, Inc. Small volume processing systems and methods with capacitive sensing

Also Published As

Publication number Publication date
DE3923079A1 (de) 1991-01-24

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee