DE19723014A1 - System injecting contrast medium followed by isotonic flushing solution - Google Patents

System injecting contrast medium followed by isotonic flushing solution

Info

Publication number
DE19723014A1
DE19723014A1 DE1997123014 DE19723014A DE19723014A1 DE 19723014 A1 DE19723014 A1 DE 19723014A1 DE 1997123014 DE1997123014 DE 1997123014 DE 19723014 A DE19723014 A DE 19723014A DE 19723014 A1 DE19723014 A1 DE 19723014A1
Authority
DE
Germany
Prior art keywords
contrast medium
injector
safety limit
drip chamber
ball check
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Withdrawn
Application number
DE1997123014
Other languages
German (de)
Inventor
Erwin Dr Schaefer
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE1997123014 priority Critical patent/DE19723014A1/en
Publication of DE19723014A1 publication Critical patent/DE19723014A1/en
Withdrawn legal-status Critical Current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
    • 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
    • A61M5/007—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 for contrast media
    • 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
    • A61M5/1407—Infusion of two or more substances
    • A61M5/1408—Infusion of two or more substances in parallel, e.g. manifolds, sequencing valves
    • 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
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M5/1452—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons

Abstract

This equipment automatically operates a high pressure contrast medium injection unit with several flushing solutions. It has a new type of drip chamber with special ball-blocking valve combined with a switch operated by back-pressure, transmitting a safety signal. Non-return valves are located in the supply line to the patient. The system allows sequential, uniform, dependable and time-saving introduction of contrast medium and flushing solutions into the human body, from one or more supply vessels.

Description

Vorrichtung zum automatischen Betrieb eines Kontrastmittelhochdruckinjektors.Device for the automatic operation of a Contrast medium high pressure injector.

Kontrastmitteldruckinjektoren üblicher Bauart werden zur schnellen und gleichmäßigen Einbringung von Kontrastmitteln in den Körper in der bildgebenden Medizin eingesetzt. Da insbesondere in der Magnetresonanztomographie kleine Mengen angewendet werden und die Zuleitungen zum Patienten aufgrund der Magnetbohrung lang sind, ist ein Nachspülen z. B. mit physiologischer Kochsalzlösung erforderlich. Die Durchflußinjektoren auf der Basis einer Schlauchrollenpumpe beinhalten die Gefahr, daß beim leeren Kontrastmittelgefäß versehentlich Luft in den Patientenkreislauf gelangen könnte, mit der Folge einer fatalen Embolie. Die üblichen Injektoren, die nach dem Prinzip einer Druckspritze arbeiten, werden deswegen manuell befüllt und entlüftet.Contrast medium pressure injectors of the usual type become fast and even introduction of contrast agents into the body imaging medicine. Because especially in the Magnetic resonance imaging can be applied in small amounts and the leads to the patient are long due to the magnetic hole, is rinsing z. B. with physiological saline required. The flow injectors based on a Hose reel pumps contain the risk that when emptying Contrast medium inadvertently air into the patient circuit could result in a fatal embolism. The usual Injectors that work on the principle of a pressure syringe therefore manually filled and vented.

Bei einer Kontrastmittellösung und einer Spüllösung - wie es derzeit üblich ist - kommt es dadurch zu erheblichen Zeitverlusten.With a contrast medium solution and a rinsing solution - as is currently the case is common - this leads to considerable loss of time.

Der im Schutzanspruch angegeben Erfindung liegt das Problem zugrunde, eine automatische Vorrichtung zu schaffen, die zeitraubende manuelle Befüllung und Entlüftung des Injektors erübrigt, dabei sollte die Möglichkeit einer versehentlichen Luftinjektion ausgeschlossen werden.The invention specified in the protection claim is the problem to create an automatic device that time-consuming manual filling and venting of the injector is no longer necessary, this should include the possibility of accidental air injection be excluded.

Dieses Problem wird mit der im Patentanspruch 1 aufgeführten Anordnung von Kugelsperrventilen in der Tropfkammer in Kombination mit dem durch den Unterdruck zu betätigenden Sicherheitsendschalter und Rückschlagventilen in der Patientenzuleitung gelöst. This problem is solved with that in claim 1 arrangement of ball check valves in the drip chamber in Combination with that to be actuated by the vacuum Safety limit switches and check valves in the patient line solved.  

Mit der Erfindung wird erreicht, daß die zeitintensiven Vorgänge der Befüllung und Entlüftung des Injektors entfallen und somit ein hoher Patientendurchsatz erreicht wird.With the invention it is achieved that the time-consuming processes of Filling and venting of the injector are not necessary and therefore a high one Patient throughput is reached.

Eine vorteilhafte Ausgestaltung der Erfindung ist im Schutzanspruch 2 angegeben.An advantageous embodiment of the invention is specified in the protection claim 2 .

Die Weiterbildung nach Schutzanspruch 2 ermöglicht einen kontinuierlichen Betrieb des Injektors ohne das zwischenzeitlich beim Wechsel des Vorratsbehälters eine Entlüftung der Patientenzuleitung vorgenommen werden mußte und schließt dabei eine versehentliche Einbringung von Luft in den Körperkreislauf aus.The further development according to protection claim 2 enables the injector to be operated continuously without the patient supply line having to be vented in the meantime when the storage container is changed, and thereby prevents accidental introduction of air into the body circulation.

Ein Ausführungsbeispiel wird anhand der Zeichnung erläutert. Nach Anstechen des Kontrastmittelvorratsbehälters (1) wird manuell ein Spiegel in der Tropfkammer (2) erzeugt. Das Kugelsperrventil (3) gibt die Leitung frei, so daß der Injektor (6), durch die entsprechende Software gesteuert, einen Entlüftungsvorgang durchführt oder eine vorgegebene Menge an Kontrastmittel aufzieht. Die Anordnung der Rückschlagventile (5) gibt während der Injektion den Weg nur in Richtung des Patienten frei. Nach Applikation des Kontrastmittels wird in gleicher Weise mit Kochsalzlösung aus dem Vorratsbehälter (8) die verbliebene Kontrasmittelmenge in der Patientenzuleitung freigespült.An embodiment is explained with reference to the drawing. After piercing the contrast medium reservoir ( 1 ), a mirror is manually created in the drip chamber ( 2 ). The ball check valve ( 3 ) releases the line, so that the injector ( 6 ), controlled by the appropriate software, carries out a venting process or draws up a predetermined amount of contrast medium. The arrangement of the check valves ( 5 ) only clears the way in the direction of the patient during the injection. After application of the contrast medium, the remaining quantity of contrast medium in the patient supply line is flushed out in the same way with saline from the storage container ( 8 ).

Wenn das Kontrasmittel zur Neige geht, sinkt die Kugel in der Tropfkammer und sperrt die Patientenzuleitung sobald sie auf den Dichtsitz fällt (4). Durch den entstandenen Unterdruck wird der Kolben einer kleinen parallelgeschalteten Spritze (7) bewegt, welcher den Sicherheitsendschalter (9) betätigt. Dadurch wird der Betrieb des Injektors unterbrochen bzw. er fordert ein neues Vorratsgefäß an.When the contrast medium runs out, the ball sinks in the drip chamber and blocks the patient line as soon as it falls on the sealing seat ( 4 ). Due to the resulting negative pressure, the piston of a small parallel syringe ( 7 ) is moved, which actuates the safety limit switch ( 9 ). This interrupts the operation of the injector or it requests a new storage container.

Claims (2)

1. Vorrichtung zum automatischen Betrieb eines Kontrastmittelhochdruckinjektors mit mehreren Spüllösungen, dadurch gekennzeichnet, daß die Anordnung einer neuartigen Tropfkammer mit Kugelsperrventil in Kombination mit einem durch Unterdruck zu betätigenden Sicherheitsendschalter und Rückschlagventilen in der Patientenzuleitung eine sequenzielle, gleichmäßig wie sichere und zeitsparende Einbringung von Kontrastmittel und Spüllösungen in den menschlichen Körper aus einem oder mehreren Vorratsbehältern gewährleistet.1. Device for the automatic operation of a high-pressure contrast medium injector with several rinsing solutions, characterized in that the arrangement of a novel drip chamber with ball check valve in combination with a safety limit switch and non-return valves to be actuated by negative pressure in the patient supply line is a sequential, uniform and safe and time-saving introduction of contrast agents and rinsing solutions guaranteed in the human body from one or more storage containers. 2. Vorrichtung nach Patentanspruch 1, dadurch gekennzeichnet, daß die Ausgestaltung der Tropfkammer mit einem Kugelsperrventil in Kombination mit einem durch Unterdruck zu betätigenden Sicherheitsendschalter eine versehentliche Einbringung von Luft in den Körperkreislauf ausschließt, daß zum automatischen Betrieb des Injektors mit Kontrastmittel und einer Spüllösung 4 Rückschlagventile und 2 Tropfkammern mit Kugelsperrventilen sowie 2 Sicherheitsendschalter erforderlich sind.2. Device according to claim 1, characterized in that the design of the drip chamber with a ball check valve in combination with one by negative pressure an actuated safety limit switch Excludes the introduction of air into the body circulation, that for automatic operation of the injector with contrast medium and a rinsing solution with 4 check valves and 2 drip chambers Ball check valves and 2 safety limit switches are required.
DE1997123014 1997-06-02 1997-06-02 System injecting contrast medium followed by isotonic flushing solution Withdrawn DE19723014A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1997123014 DE19723014A1 (en) 1997-06-02 1997-06-02 System injecting contrast medium followed by isotonic flushing solution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1997123014 DE19723014A1 (en) 1997-06-02 1997-06-02 System injecting contrast medium followed by isotonic flushing solution

Publications (1)

Publication Number Publication Date
DE19723014A1 true DE19723014A1 (en) 1998-12-03

Family

ID=7831149

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1997123014 Withdrawn DE19723014A1 (en) 1997-06-02 1997-06-02 System injecting contrast medium followed by isotonic flushing solution

Country Status (1)

Country Link
DE (1) DE19723014A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001010487A1 (en) * 1999-08-06 2001-02-15 Proxima Therapeutics, Inc. Hazardous fluid infuser
EP1161960A2 (en) * 2000-06-09 2001-12-12 Sidam di Azzolini Graziano E C. S.a.s. Single-use preassembled medical device for administering at least two drugs in preset proportions to patients
FR3092762A1 (en) * 2019-02-20 2020-08-21 Cair L.G.L. MULTI-ACCESS DEVICE FOR CONNECTING TO AN INTRAVENOUS AND / OR ENTERAL INFUSION PUMP

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3982534A (en) * 1975-01-10 1976-09-28 Buckman Thomas P Intravenous administration system
DE3722484A1 (en) * 1987-07-08 1989-01-19 Stephan Gripp Arrangement for the introduction of liquids into the body
US4915688A (en) * 1987-12-03 1990-04-10 Baxter International Inc. Apparatus for administering solution to a patient
DE4036509C1 (en) * 1990-11-16 1992-02-06 Rolf 5880 Luedenscheid De Holthaus Valve assembly for infusion enhancing - has elastic tubes as fluid passages, and valve as tube clip two-position, rotary knob
US5211201A (en) * 1986-03-04 1993-05-18 Deka Products Limited Partnership Intravenous fluid delivery system with air elimination
US5230706A (en) * 1992-03-12 1993-07-27 Duquette Irene A Bi-directional valve assembly used in needleless injection or infusion ports
US5249579A (en) * 1990-03-09 1993-10-05 E-Z-Em, Inc. Contrast media injector
DE4440987A1 (en) * 1993-11-18 1995-05-24 Minnesota Mining & Mfg Cardioplegia application system and procedure
DE4426387A1 (en) * 1993-07-28 1995-08-24 Manfred Linner X=Ray contrast medium injection system using catheter
WO1996014099A1 (en) * 1994-11-07 1996-05-17 Teirstein Paul S Radiographic dye delivery apparatus and method
WO1997007842A1 (en) * 1995-08-25 1997-03-06 Debiotech S.A. Continuously operating infusion device and method

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3982534A (en) * 1975-01-10 1976-09-28 Buckman Thomas P Intravenous administration system
US5211201A (en) * 1986-03-04 1993-05-18 Deka Products Limited Partnership Intravenous fluid delivery system with air elimination
DE3722484A1 (en) * 1987-07-08 1989-01-19 Stephan Gripp Arrangement for the introduction of liquids into the body
US4915688A (en) * 1987-12-03 1990-04-10 Baxter International Inc. Apparatus for administering solution to a patient
US5249579A (en) * 1990-03-09 1993-10-05 E-Z-Em, Inc. Contrast media injector
DE4036509C1 (en) * 1990-11-16 1992-02-06 Rolf 5880 Luedenscheid De Holthaus Valve assembly for infusion enhancing - has elastic tubes as fluid passages, and valve as tube clip two-position, rotary knob
US5230706A (en) * 1992-03-12 1993-07-27 Duquette Irene A Bi-directional valve assembly used in needleless injection or infusion ports
DE4426387A1 (en) * 1993-07-28 1995-08-24 Manfred Linner X=Ray contrast medium injection system using catheter
DE4440987A1 (en) * 1993-11-18 1995-05-24 Minnesota Mining & Mfg Cardioplegia application system and procedure
WO1996014099A1 (en) * 1994-11-07 1996-05-17 Teirstein Paul S Radiographic dye delivery apparatus and method
WO1997007842A1 (en) * 1995-08-25 1997-03-06 Debiotech S.A. Continuously operating infusion device and method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001010487A1 (en) * 1999-08-06 2001-02-15 Proxima Therapeutics, Inc. Hazardous fluid infuser
EP1161960A2 (en) * 2000-06-09 2001-12-12 Sidam di Azzolini Graziano E C. S.a.s. Single-use preassembled medical device for administering at least two drugs in preset proportions to patients
EP1161960A3 (en) * 2000-06-09 2002-09-11 Sidam di Azzolini Graziano E C. S.a.s. Single-use preassembled medical device for administering at least two drugs in preset proportions to patients
US6712786B2 (en) 2000-06-09 2004-03-30 Sidam Di Azzolini Graziano E C. S.A.S. Single-use preassembled medical device for administering at least two drugs in preset proportions to patients
FR3092762A1 (en) * 2019-02-20 2020-08-21 Cair L.G.L. MULTI-ACCESS DEVICE FOR CONNECTING TO AN INTRAVENOUS AND / OR ENTERAL INFUSION PUMP
EP3698827A1 (en) * 2019-02-20 2020-08-26 Cair L. G. L. Multi-access device for connection to an intravenous and / or enteral infusion pump

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Legal Events

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OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8139 Disposal/non-payment of the annual fee