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DE102006040831A1 - Method for immediate evacuation of a balloon catheter with radioactive content - Google Patents

Method for immediate evacuation of a balloon catheter with radioactive content Download PDF

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Publication number
DE102006040831A1
DE102006040831A1 DE200610040831 DE102006040831A DE102006040831A1 DE 102006040831 A1 DE102006040831 A1 DE 102006040831A1 DE 200610040831 DE200610040831 DE 200610040831 DE 102006040831 A DE102006040831 A DE 102006040831A DE 102006040831 A1 DE102006040831 A1 DE 102006040831A1
Authority
DE
Germany
Prior art keywords
balloon catheter
radioactive content
balloon
defective
procedure
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Withdrawn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
DE200610040831
Other languages
German (de)
Inventor
Reiner Szepan
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 DE200610040831 priority Critical patent/DE102006040831A1/en
Priority to PCT/EP2007/006583 priority patent/WO2008025417A1/en
Publication of DE102006040831A1 publication Critical patent/DE102006040831A1/en
Withdrawn legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00Radiation therapy
    • A61N5/10X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1048Monitoring, verifying, controlling systems and methods
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00Radiation therapy
    • A61N5/10X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1001X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
    • A61N5/1002Intraluminal radiation therapy
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00Radiation therapy
    • A61N5/10X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1001X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
    • A61N5/1002Intraluminal radiation therapy
    • A61N2005/1004Intraluminal radiation therapy having expandable radiation sources
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00Radiation therapy
    • A61N5/10X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1001X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
    • A61N2005/1019Sources therefor
    • A61N2005/1021Radioactive fluid

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Pathology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Radiation-Therapy Devices (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

In den Körper verschleppte Spuren des radioaktiven Präparates lösen die Evakuierung des Ballonkatheters aus.Traces of a radioactive substance transported in a body trigger evacuation of a balloon catheter.

Description

Stand der Technik:State of the art:

Die Nuklearmedizin ermöglicht eine entscheidende Reduktion gefährlicher Narbenbildung (Reostenose), wie sie bei Ballondilatationen in arteriellen Blutgefäßen entstehen. Dabei wird der Ballon des Katheters mit radioaktiver Flüssigkeit gefüllt, die sowohl die hydraulische Druckübertragung als auch das lokale Veröden der Gefäßwand bewirkt. Stand der Technik ist die manuelle Applikation durch den Arzt mittels eines adaptierten Spritzenkolbens bei Beobachtung des Manometers. Neben der Strahlenbelastung des Personals besteht für den Patienten die radiologische Gefahr des Bruchs bzw der Leckage des Ballons in der Arterie. Bei Wahrnehmung eines Druckabfalls muss der Arzt deshalb sofort reagieren und die radioaktive Flüssigkeit manuell durch sofortiges rasches Herausziehen des Spritzenkolbens extrahieren.The Nuclear medicine allows a decisive reduction of dangerous Scarring (reostenosis), as in balloon dilatations in arterial Blood vessels arise. In doing so, the balloon of the catheter becomes radioactive filled, Both the hydraulic pressure transmission and the local become deserted causes the vessel wall. The prior art is the manual application by the doctor by means of an adapted syringe plunger when observing the manometer. In addition to the radiation exposure of the staff exists for the patient radiological risk of fracture or leakage of the balloon in the Artery. When perceiving a pressure drop, the doctor must therefore react immediately and the radioactive liquid manually by immediate quickly extract the syringe plunger.

Durch eine geeignete Antriebsvorrichtung lässt sich die Spritzenanordnung als Dosierpumpe gestalten, mittels Druckmessung kann dabei der Press- und Entnahmevorgang problemlos automatisiert werden, so dass die Strahlenbelastung des Personals reduziert wird. Ein leckbedingter Druckabfall der radioaktiven Flüssigkeit teilt sich dem Drucksensor jedoch erst verzögert mit, ferner verhält sich die Saugwirkung der Dosierpumpe träge, sodass eine erhebliche Ausschüttung in die Arterie auch mit diesem gedachten Automaten nicht zu vermeiden ist.By a suitable drive device is the syringe assembly design as dosing pump, by means of pressure measurement and removal process can be easily automated, so that the Radiation exposure of the staff is reduced. A leak Pressure drop of the radioactive fluid but shares the pressure sensor only delayed, further behaves the suction effect of the dosing pump sluggish, so a significant distribution into the artery even with this imaginary vending machine unavoidable is.

Erfindung:Invention:

Es ist daher Aufgabe dieser Erfindung, ein Verfahren zur unverzögerten Evakuierung eines Ballonkatheters mit radioaktivem Inhalt zu schaffen, welches die Nachteile der bisherigen Verfahren vermeidet. Die Erfindung ist durch 5 Ansprüche und der nachfolgenden Beschreibung mit weiteren vorteilhaften Ausgestaltungen gekennzeichnet.It is therefore an object of this invention, a method for instantaneous evacuation a balloon catheter with radioactive content to create which avoids the disadvantages of the previous method. The invention is through 5 claims and the following description with further advantageous embodiments characterized.

Beschreibung:Description:

Das Rohrleitungssystem der Dosierpumpe mit Ballonkatheter ist über ein Magnetventil mit einem geeignet dimensionierten Vakuumvorratsgefäß, dem Notablasstank, verbunden. Während der medizinischen Anwendung ist das Magnetventil aktiv geschlossen, also unter Stromaufnahme. Eine signaltechnische Meldung der Ballonleckage ebenso wie ein Ausfall der elektrischen Versorgung erzwingt das augenblickliche Öffnen des Magnetventils und bewirkt so das unmittelbare Aussaugen des Katheters mit physikalisch maximal möglicher Wirksamkeit.The Piping system of the dosing pump with balloon catheter is over a Solenoid valve with a suitably dimensioned vacuum storage vessel, the emergency lowering tank, connected. While the medical application, the solenoid valve is actively closed, So under power consumption. A signaling message of the balloon leakage as well as a failure of the electrical supply forces the instantaneous opening of the Solenoid valve and thus causes the immediate suction of the catheter with physically maximum possible Effectiveness.

Die Blutströmung bewirkt beim Bruch bzw bei Leckagen des Ballons die unmittelbare Verschleppung radioaktiven Präparats in der Arterie in Flussrichtung. Die unterdruckseitig des Ballons mit einem geeigneten Detektor gemessene Strahlung aus dem Körper ist demnach ein unmittelbares Indiz für den defekten Ballon. Zur sicheren Differenzierung der Strahlung von der der Umgebung kann die Richtungsempfindlichkeit des Strahlendetektors so genutzt werden, dass die primäre Strahlungsquelle, nämlich der Inhalt des Ballons, nur auf das Minimum wirkt. Praktisch kommt ua. das Isotop Re188 zur Anwendung, dessen Gammastrahlung das Körpergewebe durchdringt und sich somit auch zum Lecknachweis eignet. Ein Schwellenwert der leckbedingten Strahlung erzeugt ein Signal zur Einleitung des Notablasses des Katheters.The blood flow causes the direct carryover of radioactive preparation in the artery in the flow direction in the event of breakage or leakage of the balloon. The negative pressure side of the balloon with a suitable detector measured radiation from the body is therefore an immediate indication of the defective balloon. For reliable differentiation of the radiation from that of the environment, the directional sensitivity of the radiation detector can be used so that the primary radiation source, namely the contents of the balloon, acts only to the minimum. Practically comes among other things. the isotope Re 188 is used, whose gamma radiation penetrates the body tissue and thus is also suitable for leak detection. A threshold of leakage radiation generates a signal to initiate the emergency discharge of the catheter.

Neben dem strahlungserzeugten Signal zur Einleitung des Notentlehrung des Katheters dient der Druckabfall der radioaktiven Flüssigkeit im Katheter als, wenn auch zur ersteren verzögert, diversitäre Meldung.Next the radiation-generated signal to initiate the denomination The catheter serves to reduce the pressure of the radioactive fluid in the catheter as, albeit delayed to the former, diverse message.

Claims (5)

Das Verfahren zur unverzögerten Entleerung eines defekten Ballonkatheters mit radioaktivem Inhalt ist gekennzeichnet durch Detektion von auftretender charakteristischer Strahlung in, von der Ballonplatzierung entfernten, Körperbereichen.The procedure for the instantaneous emptying of a defective Balloon catheter with radioactive content is characterized by Detection of occurring characteristic radiation in, of the balloon placement removed, body areas. Das Verfahren zur unverzögerten Entleerung eines defekten Ballonkatheters mit radioaktivem Inhalt ist nach Anspruch 1 ferner gekennzeichnet durch die Minimumausrichtung der Empfindlichkeit eines deplazierten Strahlendetektors in Bezug auf den Ballon.The procedure for the instantaneous emptying of a defective A balloon catheter with radioactive content is further according to claim 1 characterized by the minimum orientation of the sensitivity a displaced radiation detector relative to the balloon. Das Verfahren zur unverzögerten Entleerung eines defekten Ballonkatheters mit radioaktivem Inhalt ist nach den vorangehenden Ansprüchen dadurch gekennzeichnet, dass sie über ein Magnetventil in einen Vakuumbehälter erfolgt.The procedure for the instantaneous emptying of a defective Balloon catheter with radioactive content is after the preceding claims characterized in that it has a solenoid valve in a vacuum vessel he follows. Das Verfahren zur unverzögerten Entleerung eines defekten Ballonkatheters mit radioaktivem Inhalt ist nach Anspruch 3 dadurch gekennzeichnet, dass das Magnetventil selbstschließend ist.The procedure for the instantaneous emptying of a defective A balloon catheter with radioactive content is characterized according to claim 3 characterized in that the solenoid valve is self-closing. Das Verfahren zur unverzögerten Entleerung eines defekten Ballonkatheters mit radioaktivem Inhalt ist nach den vorangehenden Ansprüchen dadurch gekennzeichnet, dass ein Druckabfall im Katheter die Notentleerung diversitär anregt.The procedure for the instantaneous emptying of a defective Balloon catheter with radioactive content is after the preceding claims characterized in that a pressure drop in the catheter emergency emptying diversely stimulates.
DE200610040831 2006-08-31 2006-08-31 Method for immediate evacuation of a balloon catheter with radioactive content Withdrawn DE102006040831A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE200610040831 DE102006040831A1 (en) 2006-08-31 2006-08-31 Method for immediate evacuation of a balloon catheter with radioactive content
PCT/EP2007/006583 WO2008025417A1 (en) 2006-08-31 2007-07-25 Method for the instantaneous evacuation of a balloon catheter having radioactive content

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610040831 DE102006040831A1 (en) 2006-08-31 2006-08-31 Method for immediate evacuation of a balloon catheter with radioactive content

Publications (1)

Publication Number Publication Date
DE102006040831A1 true DE102006040831A1 (en) 2008-03-06

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE200610040831 Withdrawn DE102006040831A1 (en) 2006-08-31 2006-08-31 Method for immediate evacuation of a balloon catheter with radioactive content

Country Status (2)

Country Link
DE (1) DE102006040831A1 (en)
WO (1) WO2008025417A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0826393A1 (en) * 1996-08-28 1998-03-04 Omnitron International Incorporated Combined angioplasty and intravascular radiotherapy method and apparatus
WO1999033515A2 (en) * 1997-12-31 1999-07-08 Cook Incorporated Apparatus for supplying radioactive gas to a delivery device
US6993376B2 (en) * 2002-01-28 2006-01-31 Testardi Louis R Radiation measurement within the human body
US7354391B2 (en) * 2003-11-07 2008-04-08 Cytyc Corporation Implantable radiotherapy/brachytherapy radiation detecting apparatus and methods

Also Published As

Publication number Publication date
WO2008025417A1 (en) 2008-03-06

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