DE2407559C3 - Heat probe - Google Patents

Heat probe

Info

Publication number
DE2407559C3
DE2407559C3 DE19742407559 DE2407559A DE2407559C3 DE 2407559 C3 DE2407559 C3 DE 2407559C3 DE 19742407559 DE19742407559 DE 19742407559 DE 2407559 A DE2407559 A DE 2407559A DE 2407559 C3 DE2407559 C3 DE 2407559C3
Authority
DE
Germany
Prior art keywords
probe
heat
cooling
radiation
tissue
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
Application number
DE19742407559
Other languages
German (de)
Other versions
DE2407559A1 (en
DE2407559B2 (en
Inventor
Wolfgang Dr. 7759 Immenstaad Hepp
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.)
Dornier System GmbH
Original Assignee
Dornier System GmbH
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 Dornier System GmbH filed Critical Dornier System GmbH
Priority to DE19742407559 priority Critical patent/DE2407559C3/en
Publication of DE2407559A1 publication Critical patent/DE2407559A1/en
Publication of DE2407559B2 publication Critical patent/DE2407559B2/en
Application granted granted Critical
Publication of DE2407559C3 publication Critical patent/DE2407559C3/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/06—Electrodes for high-frequency therapy

Description

Die Erfindung betrifft eine stabförmige Sonde zur gezielten Applikation von Wärmeenergie auf begrenzte Gewebebezirke des Körpers von Lebewesen, wobei innerhalb der Sonde eine Einrichtung zur Abstrahlung elektromagnetischer Strahlung vorhanden ist.The invention relates to a rod-shaped probe for the targeted application of thermal energy to a limited extent Tissue areas of the body of living beings, with a device for radiation inside the probe electromagnetic radiation is present.

Eine Sonde dieser Art ist aus der DE-AS 11 61 362 bekannt, wobei der Strahler eine über seine gesamte Länge gleichmäßige Energieabstrahlung sicherstellen soll.A probe of this type is from DE-AS 11 61 362 known, the radiator ensuring uniform energy radiation over its entire length target.

Die Aufgabe der Erfindung besteht darin, eine stabförmige Sonde der eingangs angegebenen Art zu schaffen, wobei die anliegenden Gewebeflächen wärmeentlastet werden.The object of the invention is to provide a rod-shaped probe of the type specified at the beginning create, whereby the adjacent tissue surfaces are relieved of heat.

Diese Aufgabe wird erfindungsgemäß gelöst durch eine innerhalb der Sonde angeordnete Kühleinrichtung, die die dem Körper zugewandte Oberfläche der Sonde kühlt.This object is achieved according to the invention by a cooling device arranged within the probe, which cools the surface of the probe facing the body.

Durch Wahl des Verhältnisses von mittels der Einrichtung zur Abstrahlung abgegebener Wärme zu der durch Kühlung mittels der Kühleinrichtung abgeleiteten Wärme kann der Absland des Temperaturmaximums im Gewebe von der Sondenoberfläche in gewissen Grenzen variiert werden. Durch Variation der absoluten Beträge von abgegebener und durch Kühlung abgeleiteter Wärme bei konstantem Verhältnis kann die Höhe des Temperaturmaximums eingestellt werden.By choosing the ratio of heat emitted by the device for radiation to the heat dissipated by cooling by means of the cooling device can remove the temperature maximum can be varied within certain limits in the tissue of the probe surface. By varying the absolute amounts of heat dissipated and dissipated by cooling at a constant ratio can be the The height of the temperature maximum can be set.

Nach einer vorteilhaften Ausgestaltung der Erfindung sind an oder in der Sonde Temperaturfühler zur Steuerung der applizierten Wärmemenge angebracht
Die Erfindung wird nachfolgend anhand der Zeichnung näher erläutertAccording to an advantageous embodiment of the invention, temperature sensors for controlling the amount of heat applied are attached to or in the probe
The invention is explained in more detail below with reference to the drawing

Die Zeichnung zeigt eine Querschnittsansicht einer Sonde 2 zur gezielten Applikation von Wärmeenergie auf begrenzte Gewebebezirke. Die Sonde 2 steht über ein Koaxialkabel 4 mit einer nichtgezeigten Hochfrequenzenergiequelle in Verbindung. Im Inneren der Sonde 2 befinden sich zwei Antennenelektroden 6,8 und eine Kühlwasserzuleitung 10, die mit einem Kühlwassereinlauf 12 in Verbindung steht.The drawing shows a cross-sectional view of a probe 2 for the targeted application of thermal energy to limited tissue areas. The probe 2 is connected to a coaxial cable 4 with a high frequency energy source, not shown in connection. Inside the probe 2 there are two antenna electrodes 6, 8 and a cooling water supply line 10 which is connected to a cooling water inlet 12.

Nahe dem Kopf 14 der Sonde 2 gelangt Kühlwasser 16 in einen Ringraum 18 und von diesem in einen Kühlwasserablaüf 20. Jeweils ein Teil der Antennenelektroden 6 und 8 liegt an der inneren Wandung 22 des Sondenschafts 24 an, während der andere Teil am Mantel der Kühlwasserleitung 10 anliegt und von dieser mittels ein°r Isolierung 26 getrennt ist.Near the head 14 of the probe 2, cooling water 16 passes into an annular space 18 and from this into one Kühlwasserablaüf 20. Each part of the antenna electrodes 6 and 8 lies on the inner wall 22 of the Probe shaft 24, while the other part rests on the jacket of the cooling water line 10 and from this is separated by means of an insulation 26.

Die Sondt 2 kann in verschiedenartigste Körperhöhlen eingeführt werden. Die Antennenstrahler 6 und 8 senden vorzugsweise Dezimeterwellen aus, die durch das die Antennenelektroden 6,8 umgebende Wasser 16 auf ca. Ve ihrer Wellenlänge in Luft herabgesetzt werden. Im Gewebe beträgt die Wellenlänge ca. 8,5 cm. Anstatt der Dezimeterwellen können für besondere Anwendungsfälle auch Mikrowellen zur Anwendung gelangen. Anstatt des Wassers 16 können auch andereThe probe 2 can be used in a wide variety of body cavities to be introduced. The antenna radiators 6 and 8 preferably send out decimeter waves that go through the water 16 surrounding the antenna electrodes 6, 8 is reduced to about Ve of its wavelength in air will. The wavelength in the tissue is approx. 8.5 cm. Instead of decimeter waves you can use for special Use cases microwaves can also be used. Instead of the water 16, others can also be used

so Kühlmittel verwendet werden.so coolant can be used.

Durch das Verhältnis von mittels der Antennenstrahler 6, 8 eingestrahlter Wärme zu der durch Kühlung mittels des Kühlmittelstroms 16 abgeleiteten Wärme kann das Temperaturmaximum in seiner Lage im Gewebe verschoben werden. Durch Variation der absoluten Beträge von durch die Strahler 6, 8 abgegebener und durch Kühlung abgeleiteter Wärme kann die Höhe des Temperaturmaximums eingestellt werden.Due to the ratio of the heat radiated by means of the antenna radiators 6, 8 to that caused by cooling by means of the coolant flow 16 dissipated heat can the temperature maximum in its position in Tissues are moved. By varying the absolute amounts of through the radiators 6, 8 The heat given off and dissipated by cooling can set the maximum temperature will.

Die Kontrolle des Temperaturfeldes erfolgt während kurzzeitiger Unterbrechung der Energieeinstrahlung durch Messung der Oberflächentemperatur mittels Sensoren, z. B. Thermowiderständen 28.The control of the temperature field takes place during a brief interruption of the energy irradiation by measuring the surface temperature using sensors, e.g. B. Thermoresistors 28.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (2)

Patentansprüche:Patent claims: !. Stabförmige Sonde zur gezielten Applikation von Wärmeenergie auf begrenzte Gewebebezirke des Körpers von Lebewesen, wobei innerhalb der Sonde eine Einrichtung zur Abstrahlung elektromagnetischer Strahlung vorhanden ist, gekennzeichnet durch eine innerhalb der Sonde (2) angeordnete Kühleinrichtung (10, 12,18,20), die die dem Körper zugewandte Oberfläche der Sonde kühlt.! Rod-shaped probe for the targeted application of thermal energy to limited areas of tissue of the body of living beings, with a device for emitting electromagnetic radiation within the probe Radiation is present, characterized by an inside the probe (2) arranged cooling device (10, 12,18,20), which the body facing surface of the probe cools. 2. Sonde nach Anspruch 1, dadurch gekennzeichnet, daß an oder in ihr Temperaturfühler (28) zur Steuerung der applizierten Wärmemenge angebracht sind.2. Probe according to claim 1, characterized in that on or in it temperature sensor (28) for Control of the applied amount of heat are attached.
DE19742407559 1974-02-16 1974-02-16 Heat probe Expired DE2407559C3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19742407559 DE2407559C3 (en) 1974-02-16 1974-02-16 Heat probe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742407559 DE2407559C3 (en) 1974-02-16 1974-02-16 Heat probe

Publications (3)

Publication Number Publication Date
DE2407559A1 DE2407559A1 (en) 1975-08-28
DE2407559B2 DE2407559B2 (en) 1981-04-16
DE2407559C3 true DE2407559C3 (en) 1982-01-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19742407559 Expired DE2407559C3 (en) 1974-02-16 1974-02-16 Heat probe

Country Status (1)

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DE (1) DE2407559C3 (en)

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