WO2025143172A1 - Dispositif de traitement à haute fréquence et méthode de traitement à haute fréquence - Google Patents

Dispositif de traitement à haute fréquence et méthode de traitement à haute fréquence Download PDF

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Publication number
WO2025143172A1
WO2025143172A1 PCT/JP2024/046286 JP2024046286W WO2025143172A1 WO 2025143172 A1 WO2025143172 A1 WO 2025143172A1 JP 2024046286 W JP2024046286 W JP 2024046286W WO 2025143172 A1 WO2025143172 A1 WO 2025143172A1
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WO
WIPO (PCT)
Prior art keywords
output
frequency
period
high frequency
treatment
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Pending
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PCT/JP2024/046286
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English (en)
Japanese (ja)
Inventor
池内敦
松本岳郎
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Top KK
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Top KK
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Filing date
Publication date
Application filed by Top KK filed Critical Top KK
Publication of WO2025143172A1 publication Critical patent/WO2025143172A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/36014—External stimulators, e.g. with patch electrodes
    • A61N1/36021—External stimulators, e.g. with patch electrodes for treatment of pain

Definitions

  • the present invention relates to a high-frequency treatment device and a high-frequency treatment method that apply high-frequency current to a subject, such as a human or animal, to perform treatment.
  • PRF Pulsed radiofrequency
  • PRF is a known treatment for chronic pain.
  • PRF is a method of treating pain by passing a high-frequency current intermittently (in pulses) through electrodes into the living body of the treatment target, and by affecting nerve tissue, etc. with the generated electric field (see, for example, Non-Patent Document 1).
  • pulsed radiofrequency therapy is performed by passing a pulse wave of high-frequency current (e.g., 480 kHz) through a living body for several minutes at a constant frequency (e.g., 2 Hz) and a constant pulse width (e.g., 20 milliseconds).
  • high-frequency current e.g., 480 kHz
  • conventional pulsed radiofrequency therapy is performed by passing a high-frequency current intermittently for several minutes with a constant output period (e.g., 20 milliseconds) and a constant output stop period (e.g., 480 milliseconds).
  • the temperature around the electrode is kept below a predetermined threshold (42-45°C) during treatment to prevent degeneration of nerve tissue.
  • the temperature around the electrode is kept below the threshold value by controlling the output voltage of the radiofrequency power or by stopping the output of the radiofrequency power.
  • the present invention aims to provide a high-frequency treatment device and a high-frequency treatment method that can more effectively pass an intermittent high-frequency current through a treatment target.
  • the output pattern is set such that the longer the time length of the output period, the longer the time length of the individual cycle is.
  • the output pattern is set so that the time length of the output period is proportional to the time length of the individual cycles in the multiple output periods that are set.
  • the high-frequency treatment device and method of the present invention have the excellent effect of allowing intermittent high-frequency current to be more effectively passed through the treatment target.
  • FIG. 1 is a schematic diagram showing the appearance of a high-frequency treatment device 1 according to an embodiment of the present invention.
  • the high-frequency treatment device 1 of this embodiment is used to apply a high-frequency voltage to a living body, such as a human or animal, which is the subject of treatment, to pass a high-frequency current through the body, thereby performing treatment aimed at reducing pain, etc.
  • the high-frequency treatment device 1 is configured to perform not only the pulsed high-frequency treatment, in which a high-frequency current is intermittently passed through the body to create an electric field that acts on nervous tissue, but also other treatments such as high-frequency thermocoagulation, in which high-frequency current is used to heat and denature nervous tissue.
  • a high-frequency current is intermittently passed through the body to create an electric field that acts on nervous tissue
  • other treatments such as high-frequency thermocoagulation, in which high-frequency current is used to heat and denature nervous tissue.
  • high-frequency thermocoagulation in which high-frequency current is used to heat and denature nervous tissue.
  • the high-frequency treatment device 1 includes a main body 10, four electrodes 20 connected to the main body 10, and a return electrode plate 30 connected to the main body 10.
  • the main body 10 houses or supports the internal components described below.
  • the operation unit 16 is composed of a touch panel display 16a that accepts input operations such as various settings and displays various information, a button 16b that accepts operations to start and end treatment, and a control knob 16c for adjusting the output voltage.
  • a handle 17 is provided on the top of the main body 10 for carrying the main body 10.
  • a power connector and a power switch are provided on the back of the main body 10 for connecting to a commercial AC power source to receive power.
  • the electrode 20 is inserted into the inside of a target for high-frequency treatment in order to pass a high-frequency current through the target.
  • the electrode 20 is configured in a needle-like shape that can be directly inserted into the human body, etc.
  • the electrode 20 also has a built-in thermocouple 20c for measuring the temperature around the electrode 20 during treatment.
  • the electrodes 20 are electrically connected to the main body 10 via the electrode cable 21 and the electrode connectors 11 to 14. In this embodiment, up to four electrodes 20 can be used simultaneously.
  • the electrodes 20 may be of other shapes, such as rod-shaped electrodes inserted into a needle tube or catheter, or pad-shaped electrodes placed on the surface of the living body.
  • the thermocouple 20c may be provided separately from the electrodes 20.
  • the counter electrode 30 is a flat electrode that is attached to the surface of the treatment target, and is used to pass high-frequency current between the counter electrode 30 and the electrode 20.
  • the counter electrode 30 is electrically connected to the main body 10 via the counter electrode cable 31 and the counter electrode connector 15. Note that, although the counter electrode 30 is configured as a rectangular flat plate in this embodiment, the counter electrode 30 may have other shapes.
  • FIG. 2 is a block diagram showing an outline of the internal configuration of the high-frequency treatment device 1.
  • the high-frequency treatment device 1 includes, as its internal components, an output section 40, a switching section 50, a temperature measurement section 60, a voltage measurement section 71, a current measurement section 72, a main control section 80, and a sub-control section 90.
  • the output unit 40 generates and outputs high-frequency power of a preset frequency (e.g., 470-490 kHz) and a voltage (e.g., 18-80 Vrms) based on the power supplied from the commercial AC power source.
  • the output unit 40 is connected to the electrode connectors 11-14 and the return electrode connector 15 via the switching unit 50.
  • the electrode 20 is therefore connected to the output unit 40 via the electrode connectors 11-14 and the switching unit 50.
  • the output unit 40 is composed of known circuits each having a transformer, which isolates the treatment target from the commercial AC power source.
  • the switching unit 50 operates under the control of the sub-controller 90, and switches the connection state between the output unit 40 and the electrode connectors 11-14 and the return electrode connector 15 depending on the treatment to be performed.
  • the switching unit 50 is composed of multiple reed relays, but it may also be composed of a semiconductor switch or the like.
  • the temperature measurement unit 60 is composed of known circuits, etc., generates a temperature measurement signal based on the signal received from the thermocouple 20c, and transmits it to the sub-controller 90.
  • the temperature measurement unit 60 is connected to the thermocouple 20c in the electrode 20 via the electrode connectors 11 to 14, but a separate connector for the thermocouple 20c may also be provided.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Pain & Pain Management (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Electrotherapy Devices (AREA)

Abstract

Le problème décrit par la présente invention est de fournir un dispositif de traitement à haute fréquence et une méthode de traitement à haute fréquence grâce auxquels un courant intermittent à haute fréquence peut être appliqué plus efficacement à un sujet à traiter. La solution selon l'invention porte sur un dispositif de traitement à haute fréquence comprenant : une unité de sortie qui délivre une puissance à haute fréquence; une électrode qui est connectée à l'unité de sortie et qui est placée sur le sujet à traiter; et une unité de commande qui commande l'unité de sortie de telle sorte qu'une puissance à haute fréquence est délivrée par intermittence sur la base d'un motif de sortie prédéfini, le motif de sortie étant défini de telle sorte qu'une pluralité de périodes de sortie T1 pendant lesquelles la puissance à haute fréquence est délivrée sont définies avec des durées différentes, et de telle sorte que pour chacune de la pluralité de périodes de sortie T1, la période de sortie T1 est générée dans une période individuelle T5 différente.
PCT/JP2024/046286 2023-12-29 2024-12-26 Dispositif de traitement à haute fréquence et méthode de traitement à haute fréquence Pending WO2025143172A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2023223782 2023-12-29
JP2023-223782 2023-12-29

Publications (1)

Publication Number Publication Date
WO2025143172A1 true WO2025143172A1 (fr) 2025-07-03

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ID=96218102

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2024/046286 Pending WO2025143172A1 (fr) 2023-12-29 2024-12-26 Dispositif de traitement à haute fréquence et méthode de traitement à haute fréquence

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WO (1) WO2025143172A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020530361A (ja) * 2017-08-11 2020-10-22 ボストン サイエンティフィック ニューロモデュレイション コーポレイション 錯感覚のない脊髄刺激システム

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020530361A (ja) * 2017-08-11 2020-10-22 ボストン サイエンティフィック ニューロモデュレイション コーポレイション 錯感覚のない脊髄刺激システム

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