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 PDFInfo
- 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- Withdrawn
Links
- 230000002285 radioactive effect Effects 0.000 title claims description 12
- 238000000034 method Methods 0.000 title claims description 9
- 230000005855 radiation Effects 0.000 claims description 8
- 230000002950 deficient Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 2
- 230000035945 sensitivity Effects 0.000 claims description 2
- 239000000941 radioactive substance Substances 0.000 abstract 1
- 210000001367 artery Anatomy 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 208000018672 Dilatation Diseases 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000009206 nuclear medicine Methods 0.000 description 1
- 230000037390 scarring Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1048—Monitoring, verifying, controlling systems and methods
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
- A61N5/1002—Intraluminal radiation therapy
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
- A61N5/1002—Intraluminal radiation therapy
- A61N2005/1004—Intraluminal radiation therapy having expandable radiation sources
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
- A61N2005/1019—Sources therefor
- A61N2005/1021—Radioactive 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)
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
ID=38581978
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)
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 |
-
2006
- 2006-08-31 DE DE200610040831 patent/DE102006040831A1/en not_active Withdrawn
-
2007
- 2007-07-25 WO PCT/EP2007/006583 patent/WO2008025417A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2008025417A1 (en) | 2008-03-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8122 | Nonbinding interest in granting licenses declared | ||
8139 | Disposal/non-payment of the annual fee |