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WO2010137920A2 - Aiguille d'électrode de dispositif d'ablation par radiofréquence - Google Patents

Aiguille d'électrode de dispositif d'ablation par radiofréquence Download PDF

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Publication number
WO2010137920A2
WO2010137920A2 PCT/KR2010/003430 KR2010003430W WO2010137920A2 WO 2010137920 A2 WO2010137920 A2 WO 2010137920A2 KR 2010003430 W KR2010003430 W KR 2010003430W WO 2010137920 A2 WO2010137920 A2 WO 2010137920A2
Authority
WO
WIPO (PCT)
Prior art keywords
electrode
markers
electrode needle
guide tube
electrode pin
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.)
Ceased
Application number
PCT/KR2010/003430
Other languages
English (en)
Other versions
WO2010137920A3 (fr
Inventor
Kyong-Min Shin
Kyung-Hoon Shin
Kil-Soo Kim
Min-Woo Lee
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.)
Taewoong Medical Co Ltd
Original Assignee
Taewoong Medical Co Ltd
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 Taewoong Medical Co Ltd filed Critical Taewoong Medical Co Ltd
Publication of WO2010137920A2 publication Critical patent/WO2010137920A2/fr
Publication of WO2010137920A3 publication Critical patent/WO2010137920A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B18/1477—Needle-like probes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H39/00—Devices for locating or stimulating specific reflex points of the body for physical therapy, e.g. acupuncture
    • A61H39/04—Devices for pressing such points, e.g. Shiatsu or Acupressure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
    • A61B2018/00011—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
    • A61B2018/00595—Cauterization
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
    • A61B2090/3925—Markers, e.g. radio-opaque or breast lesions markers ultrasonic
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
    • 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

Definitions

  • the present invention relates to an electrode needle of a radio frequency ablation
  • thermotherapy including a high frequency thermotherapy device and a micro ablation device
  • RFA radio frequency
  • an electrode needle of an RFA device which is inserted into a human body to cauterize a lesion portion by using RF (including high frequency and microwave) heat, capable of easily checking the position or depth of the electrode needle for a medical operation within the human body.
  • a general RFA device is used to heat a lesion portion such as cancerous tissue, or the like, with RF to cauterize it to death.
  • TACE Transarterial chemoembolization
  • PEIT Percutaneous Ethanol Injection
  • PEIT Percutaneous Ethanol Injection
  • Systemic chemotherapy partial heat treatment
  • partial heat treatment is reported to be the most effective.
  • Partial heat treatment includes RFA (including microwave ablation), laser ablation, and the like, and among them, thermal treatment using RF (including high frequency and microwave) is favored by doctors or patients because it is considered to be the most effective treatment.
  • RFA including microwave ablation
  • RF including high frequency and microwave
  • the electrode device for RFA is configured such that an electrode needle radiating
  • RF is assembled to have a grip body (i.e., a body to be gripped), a cooling line for cir- culatively supplying cooling water into the interior of the grip body and the electrode needle, and an insulating portion is formed on an outer circumferential surface of the electrode needle. Accordingly, the electrode needle passes through the skin of a human body so as to be inserted into the lesion portion.
  • the electrode needle inserted into the lesion portion is heated to radiate RF, and the lesion portion, such as the cancerous tissue or the like, is cauterized and coagulated to death by the RF radiated from the electrode needle and heat.
  • a method for accurately recognizing the position of a medical (or surgical) operation by using imaging equipment for example, an ultrasound imaging device, or by irradiating X-rays allowing for the ascertaining of degree of insertion of the electrode needle when the electrode needle is inserted for a medical operation, and an improved electrode needle having a marker attached to facilitate indicating the position of a guide tube capable of variably adjusting the length of an energized portion (exposed part) of an electrode pin at an electrode having the guide tube.
  • An aspect of the present invention provides an electrode needle of a radio frequency ablation (RFA) device capable of allowing the position of a medical operation of an electrode pin with markers formed thereon and a guide tube to be easily recognized according to a radiation non-transmissive operation and diffused-reflection operation of ultrasonic waves when X-rays are applied or ultrasonic waves are radiated by using ultrasound imaging equipment from the exterior of a human body.
  • RFID radio frequency ablation
  • Another aspect of the present invention is to form a marker by bending a thin plate in a band- like shape or winding a wire to thus increase the utilization of the marker according to its usage conditions.
  • Another aspect of the present invention is to attach a marker to a guide tube to facilitate the indication of the position of the guide tube, which is configured such that the length of an energized portion of an electrode pin can be variably adjusted, thus allowing for the easy recognition of an operational depth of the electrode needle and the range of energization.
  • an electrode needle of an RFA device which is inserted into a lesion portion to cauterize the lesion portion by using RF radiated from the RFA device, wherein an electrode pin having a tip end is coupled to one end of an electrode main body that can be held or grasped by a user's hand, one or more markers coated or plated with a radiation non-transmissive material thereon are inserted into or wound around an outer circumferential surface of the electrode pin and then fixedly bonded by using a polymer adhesive, regions, excluding an end portion, of the electrode pin are wrapped (or covered), along with the markers, with an insulating tube, and heat is then applied thereto to allow the insulating tube to be contracted to fixedly compress the markers, whereby the position of the electrode pin can be easily recognized according to a non-transmissive operation when X-rays are irradiated to the marker or according to a diffused-reflection operation of ultrasonic waves when the marker is observed
  • the position of a medical operation of an electrode pin and a guide tube with markers formed thereon can be easily recognized according to a radiation non-transmissive operation and diffused-reflection operation of ultrasonic waves when X-rays are applied or ultrasonic waves are radiated by using ultrasound imaging equipment from the exterior of a human body.
  • the marker is formed by bending a thin plate in a band- like shape or winding a wire, utilization of the marker can be increased according to its usage conditions.
  • the marker is attached to a guide tube to facilitate the indication of the position of the guide tube, which is configured such that the length of an energized portion of an electrode pin can be variably adjusted, an operational depth of the electrode needle and the range of energization can be easily recognized.
  • FIG. 1 is an overall perspective view of an electrode needle connected to a radio frequency ablation (RFA) device according to an exemplary embodiment of the present invention
  • FIG. 2 is an overall front view of the electrode needle with a guide tube connected to the RFA device according to an exemplary embodiment of the present invention
  • FIG. 3 is an enlarged perspective view of the electrode needle of FIG. 1 ;
  • FIG. 4a is a view showing the process of bonding a marker in a band- like shape to an electrode pin of the electrode needle of FIG. 1 ;
  • FIG. 4b is a sectional view taken along line A-A in FIG. 4a;
  • FIG. 5a is a view showing the process of fixing the marker in the coil-like shape to the electrode pin of the electrode needle of FIG. 1 by using an insulating tube;
  • FIG. 5b is a sectional view taken along line B-B in FIG. 5a;
  • FIG. 6 is a partially enlarged front view of the guide tube of FIG. 2;
  • FIG. 7a is a view showing the process of fixing the marker in the band-like shape to the guide tube by using a polymer adhesive
  • FIG. 7b is a sectional view taken along line C-C in FIG. 7a;
  • FIG. 8a is a view showing the process of fixing the marker in a coil-like shape to the guide tube by using a polymer adhesive
  • FIG. 8b is a sectional view taken along line D-D in FIG. 8a;
  • FIG. 9a is a view showing the process of fixing the marker in the band-like shape to the guide tube by using an insulating tube
  • FIG. 9b is a sectional view taken along line E-E in FIG. 9a;
  • Fig. 10a is a view showing the process of fixing the marker in the coil-like shape to the guide tube by using an insulating tube;
  • FIG. 10b is a sectional view taken along line F-F in FIG. 10a;
  • FIG. 11 is a view showing how the electrode needle of FIG. 1 is used for a medical operation.
  • FIG. 12 is a view showing how the electrode needle of FIG. 2 is used by using a guide tube for a medical operation. Best Mode for Carrying out the Invention
  • RFA radio frequency radiated radiated from the RFA device
  • RFA radio frequency radiated radiated from the RFA device
  • an electrode main body 11 an electrode pin 12
  • markers 20 fixedly inserted to or wound around an outer circumferential surface of the electrode pin 12
  • an insulating tube 13 coupled to wrap the outer circumferential surface of the electrode pin 12 and the markers 20 therein.
  • the electrode main body 11 is configured to allow a user to hold it with his hand and connected to the RFA device (not shown) by using an electrode line 11a through which RF and cooling water are supplied.
  • one end of the electrode line 1 Ia is connected to the electrode main body 11, and a connector 1 Ib, which is connected to an RF generator, is connected to the other end of the electrode line 11a.
  • the electrode pin 12 having a tip end (i.e., having such a form that its end is acute), is connected to be coupled to one end of the electrode main body 11 such that it can be provided with RF and cooling water.
  • the electrode pin 12 has a hollow therein to allow cooling water to circulate therein to reduce heat when RF heat is generated.
  • One or more markers 20, coated with a non-transmissive (or opaque) material on its surface, are formed to be inserted into or wound around the outer circumferential surface of the electrode pin 12.
  • the markers 20 are configured by bending a thin plate coated or plated with a radiation non-transmissive material thereon in the shape of a band and inserting it into the outer circumferential surface of the electrode pin 12.
  • the marker 20 may also be configured by winding a wire 21 coated or plated with a radiation non-transmissive material thereon on the outer circumferential surface of the electrode pin 12.
  • the marker 20 formed on the electrode pin 12 is fixed to the electrode pin 12 by using a polymer adhesive (P) in order to prevent the marker 20 from moving on the electrode pin 12.
  • P polymer adhesive
  • An insulating tube 13 wraps the regions, excluding an end portion, of the outer circumferential surface of the electrode pin 12 and the markers 20 to insulate them.
  • the insulating tube 13 is configured to prevent human body tissues, other than the lesion portion, from being cauterized when RF is transmitted to the electrode pin 12.
  • the electrode needle 100 of the RFA device which is to be inserted into a lesion portion to cauterize the lesion portion by using RF radiated from the RFA device, includes the electrode main body 11, the electrode pin 12, a guide tube 14 formed as a polymer tube or a metal pipe and inserted into the outer circumferential surface of the electrode pin 12 such that it moves up and down on the outer circumferential surface of the electrode pin 12, and the markers 20 inserted into or wound around the outer circumferential surface of the guide tube 14.
  • the electrode main body 11 is configured to allow a user to hold it with his hand and connected to the RFA device (not shown) by using an electrode line 11a through which RF and cooling water are supplied.
  • one end of the electrode line 1 Ia is connected to the electrode main body 11, and a connector 1 Ib, which is connected to an RF generator, is connected to the other end of the electrode line 11a.
  • the electrode pin 12 having a tip end (i.e., having such a form that its end is acute), is connected to be coupled to one end of the electrode main body 11 such that it can be provided with RF and cooling water.
  • the electrode pin 12 has a hollow therein to allow cooling water to circulate therein to reduce heat when RF heat is generated.
  • the guide tube 14 wraps the regions, excluding an end portion, of the electrode pin
  • the guide tube 14 is drawn out of the electrode main body 11 or inserted into the electrode main body 11 to adjust the length of an energized portion of an electrode pin 12.
  • the markers 20 coated or plated with a radiation non-transmissive material on its surface is formed on the outer circumferential surface of the guide tube 14.
  • One or more markers 20 may be inserted into or wound around the outer circumferential surface of the guide tube 14.
  • the markers 20 are configured by bending a thin plate coated or plated with a radiation non-transmissive material thereon in the shape of a band and inserting it into the outer circumferential surface of the guide tube 14.
  • the marker 20 may also be configured by winding a wire 21 coated or plated with a radiation non-transmissive material thereon on the outer circumferential surface of the guide tube 14.
  • the marker 20 when the guide tube 14 is a polymer tube, the marker 20 may be fixedly bonded to the guide tube 20 with a polymer adhesive (P) which is harmless to the human body, and when the guide tube 14 is manufactured as the polymer tube, it can provide an insulating function, the same function as that of the insulating tube 13.
  • P polymer adhesive
  • the electrode needle 100 is configured to facilitate recognition of the position of the electrode pin 12 or the guide tube 14 according to a non-transmissive operation when X-ray is irradiated to the marker 20 or according to a diffused-reflection operation of ultrasonic waves when the marker 20 is observed by using ultrasound imaging equipment, in a state in which the electrode needle 100 is inserted for a medical operation.
  • the connector 1 Ib connected to the electrode line 1 Ia is connected to an RF generator (not shown), a sort of RFA device.
  • cooling water is circulatively supplied into the interior of the electrode pin 12, the position of a lesion portion 200 is checked, and the electrode pin 12 of the electrode needle 100 is inserted into the interior of the human body such that the electrode pin 12 protruded from the end of the insulating tube 13 is inserted into the lesion portion 200 such as a cancerous tissue.
  • the marker 20 is positioned at the inner side of the human body as the insulating tube 13 is inserted in the process of the medical procedure of the electrode needle 100.
  • the insertion depth or position of the electrode pin 12 or the insulating tube 13 can be simply checked by irradiating X-rays thereupon.
  • the electrode pin 12 is inserted along with the guide tube 14, and in this case, the length of an energized portion of the electrode pin 12 can be adjusted by adjusting the length of an exposed portion of the guide tube 14 by operating the switch l ie according to the area or depth degree of the lesion portion 200, in order to adjust the range of cauterization and, because the position of the marker 20 formed on the guide tube 14 can be accurately recognized, whether or not the insertion is precisely performed for cauterization can be recognized.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
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  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biomedical Technology (AREA)
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  • Pain & Pain Management (AREA)
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  • Surgical Instruments (AREA)

Abstract

L'invention concerne une aiguille d'électrode d'un dispositif d'ablation par radiofréquence (RFA), qui est introduit dans une partie de lésion afin de cautériser cette partie de lésion au moyen d'une radiofréquence émise par le dispositif RFA, une broche d'électrode possédant une extrémité pointue est couplée à une extrémité d'un corps d'électrode principal pouvant être porté ou saisi par la main de son utilisateur, un ou plusieurs marqueurs revêtus ou plaqués d'un matériau à rayonnement non transmissif sont introduits dans ou enroulés autour d'une surface circonférentielle externe de la broche d'électrode, des régions, à l'exception d'une partie d'extrémité de la broche d'électrode, sont enveloppées, avec les marqueurs, dans un tube isolant, et de la chaleur est appliquée à l'ensemble pour permettre au tube isolant de se contracter pour comprimer solidement les marqueurs, la position de la broche d'électrode pouvant ainsi aisément être reconnue dans un état dans lequel l'aiguille d'électrode est introduite en vue d'une opération médicale.
PCT/KR2010/003430 2009-05-28 2010-05-28 Aiguille d'électrode de dispositif d'ablation par radiofréquence Ceased WO2010137920A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020090047103A KR20100128608A (ko) 2009-05-28 2009-05-28 고주파 열 치료장치의 전극침
KR10-2009-0047103 2009-05-28

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WO2010137920A2 true WO2010137920A2 (fr) 2010-12-02
WO2010137920A3 WO2010137920A3 (fr) 2011-04-14

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WO (1) WO2010137920A2 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102397099A (zh) * 2011-08-30 2012-04-04 北京工业大学 动脉瘤介入式热疗装置
TWI626035B (zh) * 2016-01-28 2018-06-11 財團法人工業技術研究院 射頻消融電極針具
CN110974690A (zh) * 2019-11-22 2020-04-10 中国科学院电子学研究所 双向电针、适用于动物的精准穴位刺激装置及系统
CN112294431A (zh) * 2019-07-30 2021-02-02 上海睿刀医疗科技有限公司 用于不可逆电穿孔设备的超声可显影电极针
US11432870B2 (en) 2016-10-04 2022-09-06 Avent, Inc. Cooled RF probes
CN116570363A (zh) * 2023-07-14 2023-08-11 北京先瑞达医疗科技有限公司 一种射频导管

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KR101304423B1 (ko) * 2011-11-07 2013-09-05 광주과학기술원 전극침 및 그 제조 방법, 및 이를 포함하는 심부 국소 치료 장치
KR101449965B1 (ko) * 2012-02-10 2014-10-15 (주)알에프메디컬 고주파 수술용 전극 팁 및 이를 구비하는 고주파 수술용 전극
CN104546120A (zh) * 2015-01-14 2015-04-29 浙江伽奈维医疗科技有限公司 一种止血针芯及活检针
JP6995041B2 (ja) * 2015-10-20 2022-01-14 ジャイラス エーシーエムアイ インク 切除装置
KR102081033B1 (ko) * 2019-11-14 2020-02-24 최은숙 침습 길이 정밀도 향상을 위한 한방 침, 이를 위한 하이브리드 침습장치, 그리고 침습 길이 정밀도 향상을 위한 한방 침 제어 시스템

Family Cites Families (4)

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KR200287997Y1 (ko) * 2002-05-29 2002-09-09 이태권 피부미용 성형외과 수술용 전기바늘
AU2003262988A1 (en) * 2002-08-30 2004-03-19 Inrad, Inc. Localizing needle with fluid delivery
KR100603513B1 (ko) * 2004-09-15 2006-07-20 임현철 고주파 열치료의 전극장치
KR20080111824A (ko) * 2007-06-20 2008-12-24 김근식 무늬가 형성된 한방침

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102397099A (zh) * 2011-08-30 2012-04-04 北京工业大学 动脉瘤介入式热疗装置
TWI626035B (zh) * 2016-01-28 2018-06-11 財團法人工業技術研究院 射頻消融電極針具
US10888372B2 (en) 2016-01-28 2021-01-12 Industrial Technology Research Institute Radiofrequency ablation electrode needle
US11432870B2 (en) 2016-10-04 2022-09-06 Avent, Inc. Cooled RF probes
CN112294431A (zh) * 2019-07-30 2021-02-02 上海睿刀医疗科技有限公司 用于不可逆电穿孔设备的超声可显影电极针
CN110974690A (zh) * 2019-11-22 2020-04-10 中国科学院电子学研究所 双向电针、适用于动物的精准穴位刺激装置及系统
CN110974690B (zh) * 2019-11-22 2021-05-11 中国科学院电子学研究所 双向电针、适用于动物的精准穴位刺激装置及系统
CN116570363A (zh) * 2023-07-14 2023-08-11 北京先瑞达医疗科技有限公司 一种射频导管
CN116570363B (zh) * 2023-07-14 2024-04-02 北京先瑞达医疗科技有限公司 一种射频导管

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WO2010137920A3 (fr) 2011-04-14
KR20100128608A (ko) 2010-12-08

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