JPH09140723A - High-frequency treatment instrument - Google Patents
High-frequency treatment instrumentInfo
- Publication number
- JPH09140723A JPH09140723A JP7304211A JP30421195A JPH09140723A JP H09140723 A JPH09140723 A JP H09140723A JP 7304211 A JP7304211 A JP 7304211A JP 30421195 A JP30421195 A JP 30421195A JP H09140723 A JPH09140723 A JP H09140723A
- Authority
- JP
- Japan
- Prior art keywords
- high frequency
- transmission line
- frequency
- antenna
- frequency antenna
- 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.)
- Pending
Links
Landscapes
- Surgical Instruments (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は高周波アンテナから
高周波を生体に照射して治療する高周波治療器に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-frequency therapeutic device for irradiating a living body with high-frequency waves from a high-frequency antenna for treatment.
【０００２】[0002]
【従来の技術】高周波を利用した手術装置として、電気
メス（周波数は数百ＫＨｚ）やマイクロ波メス（周波数
は１００ＭＨｚ〜２４５０ＭＨｚ等）が知られている
（実開昭６２−１６０５号公報）。2. Description of the Related Art As a surgical device utilizing high frequency, an electric scalpel (frequency is several hundred KHz) and a microwave scalpel (frequency is 100 MHz to 2450 MHz) are known (Japanese Utility Model Publication No. 62-1605).
【０００３】従来の手術装置では高周波の伝送線路と高
周波アンテナとの間のインピーダンス整合は考慮されて
いなかった。つまり、従来の手術装置では高周波の供給
源とアンテナの間のインピーダンス整合が完全にとられ
ていない。In conventional surgical equipment, impedance matching between a high frequency transmission line and a high frequency antenna has not been taken into consideration. That is, in the conventional surgical apparatus, impedance matching between the high frequency power source and the antenna is not completely achieved.
【０００４】このため、高周波発振器から伝送線路を通
じて供給された高周波がアンテナを充分に励振すること
ができず、伝送線路で漏れ電流が発生し、使用時間が長
いと伝送線路やハンドピースが異常に加熱される等の虞
があり、使用上の制限があった。また、効率よく高周波
がアンテナに伝送されないので治療性能が低下する虞も
あった。For this reason, the high frequency supplied from the high frequency oscillator through the transmission line cannot sufficiently excite the antenna, a leak current is generated in the transmission line, and the transmission line and the handpiece become abnormal after a long use time. There is a risk of being heated, etc., and there was a limitation in use. Further, since the high frequency is not efficiently transmitted to the antenna, there is a possibility that the treatment performance is deteriorated.
【０００５】[0005]
【発明が解決しようとする課題】本発明は前記課題に着
目してなされたもので、その目的とするところは特に伝
送線路からアンテナに高周波が効率よく供給されるよう
にすることにより、伝送線路での高周波の損失を少なく
し、これにより伝送線路の異常発熱等の虞が少なくな
り、しかも、アンテナに高周波が効率よく供給されて処
理能力が高い高周波治療器を提供することにある。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and its object is to make it possible to efficiently supply a high frequency from a transmission line to an antenna, There is a need to provide a high-frequency treatment device in which high-frequency loss in the antenna is reduced, which reduces the risk of abnormal heat generation in the transmission line, etc., and in which the antenna is efficiently supplied with high-frequency waves and has high processing capability.
【０００６】[0006]
【課題を解決するための手段】本発明は生体を高周波で
処置するための高周波アンテナと、前記高周波アンテナ
に高周波を供給する高周波発振器と、前記高周波発振器
と高周波アンテナを接続する伝送線路を備えた高周波治
療器において、前記高周波アンテナと伝送線路の間の個
所にインピーダンス整合器を設け、高周波アンテナと伝
送線路の間のインピーダンス整合をとり、伝送線路から
高周波アンテナに効率よく高周波が供給されるようにし
たものである。The present invention comprises a high frequency antenna for treating a living body with a high frequency, a high frequency oscillator for supplying a high frequency to the high frequency antenna, and a transmission line connecting the high frequency oscillator and the high frequency antenna. In the high frequency treatment device, an impedance matching device is provided at a position between the high frequency antenna and the transmission line, impedance matching is performed between the high frequency antenna and the transmission line, and a high frequency is efficiently supplied from the transmission line to the high frequency antenna. It was done.
【０００７】[0007]
＜第１実施形態＞図１を参照して、本発明の第１実施形
態に係る高周波治療器を説明する。 （構成）図１において、１は高周波治療器のハンドピー
スであり、これには処置用高周波アンテナ２が設けられ
ている。高周波アンテナ２は同軸ケーブル（同軸管を含
む）によって構成された伝送線路３によって高周波発振
器４に接続されている。高周波発振器４は生体５の表面
に設ける対極板６と前記高周波アンテナ２の間に高周波
を印加する。高周波アンテナ２には前記伝送線路３を通
じて高周波発振器４からの高周波が供給される。<First Embodiment> With reference to FIG. 1, a high-frequency treatment device according to a first embodiment of the present invention will be described. (Structure) In FIG. 1, reference numeral 1 is a handpiece of a high-frequency treatment device, and a high-frequency antenna 2 for treatment is provided on the handpiece. The high frequency antenna 2 is connected to a high frequency oscillator 4 by a transmission line 3 formed by a coaxial cable (including a coaxial tube). The high frequency oscillator 4 applies a high frequency between the counter electrode 6 provided on the surface of the living body 5 and the high frequency antenna 2. A high frequency from a high frequency oscillator 4 is supplied to the high frequency antenna 2 through the transmission line 3.
【０００８】高周波アンテナ２と伝送線路３の間にはネ
ットワークのインピーダンス整合器７が設けられてい
る。このインピーダンス整合器７を設けることにより伝
送線路３から高周波アンテナ２へ高周波を効率よく供給
するようになっている。前記インピーダンス整合器４は
コイルＬ、コンデンサＣおよび抵抗Ｒなどの受動素子か
ら構成されている。A network impedance matching device 7 is provided between the high frequency antenna 2 and the transmission line 3. By providing this impedance matching device 7, a high frequency is efficiently supplied from the transmission line 3 to the high frequency antenna 2. The impedance matching device 4 is composed of passive elements such as a coil L, a capacitor C and a resistor R.
【０００９】前記高周波発振器４は電源及び調整器を含
む発振器制御装置８によって制御がなされる。また、高
周波発振器４の発振動作は、前記ハンドピース１に設け
たハンドスイッチやフットスイッチによって操作され
る。この高周波治療器は生体の切除・凝固・止血などの
処置を行うものであり、例えば電気メスとして機能する
構成になっている。The high frequency oscillator 4 is controlled by an oscillator controller 8 including a power supply and a regulator. Further, the oscillating operation of the high frequency oscillator 4 is operated by a hand switch or a foot switch provided on the handpiece 1. This high-frequency treatment device performs treatments such as excision, coagulation, and hemostasis of a living body, and is configured to function as an electric knife, for example.
【００１０】（作用）基本的な原理は次のようなもので
ある。対極板６の面積は高周波アンテナ２の面積に比べ
てかなり広いので、その高周波アンテナ２と対極板６の
間に高周波を印加すると、電流密度は高周波アンテナ２
の刃先で最も高くなり、その部位のみを選択的に処置す
ることができる。(Operation) The basic principle is as follows. Since the area of the counter electrode plate 6 is considerably larger than the area of the high frequency antenna 2, when a high frequency wave is applied between the high frequency antenna 2 and the counter electrode plate 6, the current density becomes high.
It becomes the highest at the cutting edge, and only that part can be selectively treated.
【００１１】一方、インピーダンス整合器７はコイル
Ｌ、コンデンサＣ、抵抗Ｒなどの受動素子からなるネッ
トワークであり、これによって高周波アンテナ２と伝送
線路３の間のインピーダンス整合をとる。ここで、仮に
伝送線路３と高周波アンテナ２のみではその両者のイン
ピーダンスの整合を完全にとるのは難しいが、この間に
適当な値の素子を介在させるインピーダンス整合器７を
設けることにより、その伝送線路３と高周波アンテナ２
の両者のインピーダンスの整合がなされる。On the other hand, the impedance matching device 7 is a network composed of passive elements such as a coil L, a capacitor C, and a resistor R, and thereby impedance matching between the high frequency antenna 2 and the transmission line 3 is achieved. Here, it is difficult to perfectly match the impedances of the transmission line 3 and the high-frequency antenna 2 alone, but by providing an impedance matching device 7 with an element of an appropriate value interposed therebetween, the transmission line 3 and the high-frequency antenna 2 can be matched. 3 and high frequency antenna 2
Both impedances are matched.
【００１２】（効果）伝送線路３と高周波アンテナ２の
両者のインピーダンスの整合がなされることにより高周
波発振器４から送信された高周波エネルギーが伝送線路
３を通じて高周波アンテナ２から生体５へ効率よく放射
される。つまり、高周波発振器４から供給された高周波
エネルギーは伝送線路で反射したり漏れたりすることな
く生体５へ作用するので、その治療効率が高い。また、
同様の理由で高周波発振器４を保護することができる。(Effect) By matching the impedances of the transmission line 3 and the high frequency antenna 2, the high frequency energy transmitted from the high frequency oscillator 4 is efficiently radiated from the high frequency antenna 2 to the living body 5 through the transmission line 3. . In other words, the high-frequency energy supplied from the high-frequency oscillator 4 acts on the living body 5 without being reflected or leaked on the transmission line, so that the treatment efficiency is high. Also,
The high frequency oscillator 4 can be protected for the same reason.
【００１３】＜第２実施形態＞図２及び図３を参照し
て、本発明の第２実施形態に係る高周波治療器を説明す
る。<Second Embodiment> A high frequency treatment device according to a second embodiment of the present invention will be described with reference to FIGS. 2 and 3.
【００１４】（構成）図２は一般にバイポーラ電極とよ
ばれる双極のアンテナを有する高周波治療器のハンドピ
ース１０を示している。(Structure) FIG. 2 shows a handpiece 10 of a high frequency treatment device having a bipolar antenna generally called a bipolar electrode.
【００１５】このハンドピース１０の先端には高周波ア
ンテナ１１が設けられている。この高周波アンテナ１１
はセラミックや樹脂等の誘電体（電気的絶縁体）１２に
陽極１３と陰極１４が内包されており、この高周波アン
テナ１１が生体１５に触れると、この両電極１３，１４
の間に高周波電流が流れ、切除・凝固・止血などの処置
が生体１５に施される。A high frequency antenna 11 is provided at the tip of the handpiece 10. This high frequency antenna 11
Includes a positive electrode 13 and a negative electrode 14 in a dielectric (electrical insulator) 12 such as ceramic or resin. When the high frequency antenna 11 touches a living body 15, both electrodes 13, 14
A high-frequency current flows during this period, and the living body 15 is subjected to treatments such as excision, coagulation and hemostasis.
【００１６】この高周波アンテナ１１には図示しない高
周波発振器から同軸ケーブル（同軸管を含む）からなる
伝送線路１６を通じて高周波が供給される。高周波アン
テナ１１と伝送線路１６の間には、使用波長の１／４の
長さの円筒状導体からなる１／４波長スリーブと呼ばれ
るインピーダンス整合器１７と円環状のフェライトビー
ズ１８が設けられている。１／４波長スリーブは円筒状
でなくともそのインピーダンス整合機能を奏する程度に
実質的に筒状のものであればよいものである。A high frequency is supplied to the high frequency antenna 11 from a high frequency oscillator (not shown) through a transmission line 16 formed of a coaxial cable (including a coaxial tube). Between the high frequency antenna 11 and the transmission line 16, an impedance matching device 17 called a 1/4 wavelength sleeve made of a cylindrical conductor having a length of 1/4 of the used wavelength and an annular ferrite bead 18 are provided. . The quarter-wave sleeve is not limited to a cylindrical shape, but may be a substantially cylindrical shape as long as it exhibits its impedance matching function.
【００１７】前記高周波アンテナ１１のアンテナ形状は
図３（Ａ），（Ｂ），（Ｃ）にそれぞれ示すようなバリ
エーションが考えられる。図３（Ａ）で示すアンテナ形
状は２本の針状電極２１，２２を露出させて平行に突出
したものである。図３（Ｂ）で示すアンテナ形状は誘電
体（電気的絶縁体）２３に内包した陽極２４と陰極２５
の先端を誘電体２３の先端面に並べて露出させたもので
ある。図３（Ｃ）で示すアンテナ形状は誘電体（電気的
絶縁体）２６にその刃部２７に沿って陽極２８と陰極２
９を並べて露出させたものである。The antenna shape of the high frequency antenna 11 may be varied as shown in FIGS. 3 (A), 3 (B) and 3 (C). The antenna shape shown in FIG. 3A is one in which two needle electrodes 21 and 22 are exposed and are projected in parallel. The antenna shape shown in FIG. 3B has an anode 24 and a cathode 25 enclosed in a dielectric (electrical insulator) 23.
The tips of the are aligned and exposed on the tip surface of the dielectric 23. The antenna shape shown in FIG. 3 (C) has a dielectric (electrical insulator) 26, an anode 28 and a cathode 2 along a blade portion 27 thereof.
9 are exposed side by side.
【００１８】（作用）この高周波治療器では図示しない
高周波発振器から伝送線路１６を通じて高周波アンテナ
１１に高周波が供給される。このときの高周波アンテナ
１１と伝送線１６との間のインピーダンス整合は１／４
波長の円筒導体からなる１／４波長スリーブと呼ばれる
インピーダンス整合器１７によって行われる。(Operation) In this high frequency treatment device, a high frequency is supplied from the high frequency oscillator (not shown) to the high frequency antenna 11 through the transmission line 16. At this time, impedance matching between the high frequency antenna 11 and the transmission line 16 is 1/4.
This is performed by an impedance matching device 17 called a quarter-wave sleeve made of a cylindrical conductor of wavelength.
【００１９】また、フェライトビーズ１８は伝送線路１
６から高周波アンテナ１１以外への高周波の漏れ電流に
対して高インピーダンス素子として作用する。このた
め、高周波アンテナ１１以外への電流の漏れを阻止す
る。Further, the ferrite beads 18 are the transmission line 1
It acts as a high-impedance element against high-frequency leakage current from 6 to other than the high-frequency antenna 11. For this reason, the leakage of current to other than the high frequency antenna 11 is prevented.
【００２０】（効果）前記インピーダンス整合器１７は
１／４波長スリーブからなるので、小型の整合器を構成
することができる。また、高周波アンテナ１１の先端部
分を小型軽量に保ったままインピーダンス整合ができ
る。(Effect) Since the impedance matching device 17 is composed of a quarter wavelength sleeve, a small matching device can be constructed. Further, impedance matching can be performed while keeping the tip portion of the high frequency antenna 11 small and lightweight.
【００２１】＜第３実施形態＞図４を参照して、本発明
の第３実施形態に係る高周波治療器を説明する。 （構成）図４において、３１は高周波治療器のハンドピ
ースであり、このハンドピース３１には処置用高周波ア
ンテナ３２が設けられている。この高周波アンテナ３２
には同軸ケーブル（同軸管を含む）からなる伝送線路３
３が接続されている。高周波アンテナ３２は伝送線路３
３を構成する同軸ケーブルの中心導体３４に接続された
ループ状電極３５を有し、このループ状電極３５からマ
イクロ波を放射し、生体を切除するようになっている。<Third Embodiment> With reference to FIG. 4, a high-frequency treatment device according to a third embodiment of the present invention will be described. (Structure) In FIG. 4, reference numeral 31 is a handpiece of a high-frequency treatment device, and a high-frequency antenna 32 for treatment is provided on the handpiece 31. This high frequency antenna 32
Is a transmission line 3 consisting of a coaxial cable (including a coaxial tube)
3 are connected. The high frequency antenna 32 is the transmission line 3
3 has a loop-shaped electrode 35 connected to the central conductor 34 of the coaxial cable, and microwaves are radiated from the loop-shaped electrode 35 to excise the living body.
【００２２】ループ電極３５の根元には筒状の導体３６
が設けられている。この筒状の導体３６は前記同軸ケー
ブルからなる伝送線路３３とループ状の高周波アンテナ
３２のインピーダンス整合がとれる適当な長さに例えば
実験的に決定して設定されている。A cylindrical conductor 36 is provided at the base of the loop electrode 35.
Is provided. The tubular conductor 36 is, for example, empirically determined and set to an appropriate length so that the impedance of the transmission line 33 formed of the coaxial cable and the loop-shaped high frequency antenna 32 can be matched.
【００２３】また、筒状の導体３６を含め、ループ状の
高周波アンテナ３２の根元までシリコンあるいはテフロ
ン等の誘電体で被覆されており、その誘電体の外周には
絶縁体からなる鞘３７が被嵌して設けられている。鞘３
７は前後スライド自在に被嵌されている。In addition, the base of the loop-shaped high-frequency antenna 32 including the cylindrical conductor 36 is covered with a dielectric such as silicon or Teflon, and the outer periphery of the dielectric is covered with a sheath 37 made of an insulating material. It is fitted. Sheath 3
7 is fitted so as to be slidable back and forth.
【００２４】（作用）この実施形態での高周波治療器は
前述した第１実施形態や第２実施形態とは異なり、生体
に対して直接に触れるのはホット（能動）側のループ状
電極３５のみであるが、マイクロ波はそれを高周波アン
テナ３２として生体に放射される。(Operation) Unlike the first and second embodiments described above, the high-frequency treatment device according to this embodiment directly touches the living body only with the loop electrode 35 on the hot (active) side. However, the microwave is radiated to the living body by using the microwave as the high frequency antenna 32.
【００２５】高周波アンテナ３２のループ状電極３５と
同軸ケーブルからなる伝送線路３３との間のインピーダ
ンス整合はそのままではとれないが、その間に実質的に
筒状の導体３６を設け、これを１／４波長スリーブ等の
インピーダンス整合器とするため、同軸ケーブルからな
る伝送線路３３から供給されたマイクロ波は高周波アン
テナ３２のループ状電極３５から効率よく放射される。Impedance matching between the loop-shaped electrode 35 of the high-frequency antenna 32 and the transmission line 33 formed of a coaxial cable cannot be taken as it is, but a substantially cylindrical conductor 36 is provided between them and the impedance is reduced to 1/4. Since the impedance matching device such as the wavelength sleeve is used, the microwave supplied from the transmission line 33 formed of the coaxial cable is efficiently radiated from the loop electrode 35 of the high frequency antenna 32.
【００２６】また、ループ状電極３５をいわゆる高周波
スネアとして使用できる。ループ状電極３５に隆起した
生体組織を掛け、鞘３７を高周波アンテナ３２の方向に
押し出すと、そのループ状電極３５は絞り込まれて小さ
なループ形状となり、生体組織を縛り込むことができ
る。この状態で高周波アンテナ３２からマイクロ波を放
射すると、結紮部がマイクロ波で凝固されつつ切除され
るので、非観血的に胃や腸のポリープや食道静脈瘤等の
組織を切除することができる。Further, the loop electrode 35 can be used as a so-called high frequency snare. When a raised living tissue is applied to the loop electrode 35 and the sheath 37 is pushed out toward the high frequency antenna 32, the loop electrode 35 is narrowed down into a small loop shape, and the living tissue can be bound. When microwaves are radiated from the high frequency antenna 32 in this state, the ligated portion is coagulated by the microwaves and excised, so that tissues such as polyps of the stomach and intestines and esophageal varices can be excised noninvasively. ..
【００２７】（効果）筒状の導体３６は小型のインピー
ダンス整合器を構成できるので、高周波アンテナの先端
部を小型軽量に保ったままインピーダンス整合ができ
る。(Effect) Since the tubular conductor 36 can constitute a small impedance matching device, impedance matching can be performed while keeping the tip of the high frequency antenna small and lightweight.
【００２８】（変形例）第３実施形態の高周波アンテナ
３２は伝送線路３３を構成する同軸ケーブルの中心導体
３４に接続されたループ状電極３５によって構成してい
るが、そのループを形成するものに陽極と陰極を設けて
第２実施形態での高周波アンテナのように双極のアンテ
ナを構成してもよい。陽極と陰極の配置はループワイヤ
に沿って両方の電極を並べたり、ループワイヤの一方の
片側部分を陽極、他方の片側部分を陰極にして別々に設
けたりすることが考えられる。ループワイヤ自体を導電
ワイヤーで形成してもよい。また、高周波アンテナ近く
の伝送線路３３の同軸ケーブルの部分に円環状のフェラ
イトビーズを設けてもよい。(Modification) The high frequency antenna 32 of the third embodiment is constituted by the loop electrode 35 connected to the center conductor 34 of the coaxial cable which constitutes the transmission line 33. A bipolar antenna may be constructed by providing an anode and a cathode, like the high frequency antenna in the second embodiment. As for the arrangement of the anode and the cathode, it is conceivable that both electrodes are arranged along the loop wire, or that one side portion of the loop wire is used as an anode and the other side portion is used as a cathode and are separately provided. The loop wire itself may be formed of a conductive wire. Further, an annular ferrite bead may be provided on the coaxial cable portion of the transmission line 33 near the high frequency antenna.
【００２９】［付記］ （１）生体を高周波で処置するための高周波アンテナ
と、前記高周波アンテナに高周波を供給する高周波発振
器と、前記高周波発振器と高周波アンテナを接続する伝
送線路を備えた高周波治療器において、前記高周波アン
テナと伝送線路の間の個所にインピーダンス整合器を設
け、高周波アンテナと伝送線路の間のインピーダンス整
合をとるようにしたことを特徴とする高周波治療器。 （２）前記インピーダンス整合器が４分の１波長スリー
ブであることを特徴とする付記第１項に記載の高周波治
療器。 （３）使用する高周波がマイクロ波であることを特徴と
する付記第１，２項に記載の高周波治療器。[Additional Notes] (1) A high-frequency therapeutic device including a high-frequency antenna for treating a living body with high-frequency waves, a high-frequency oscillator for supplying a high-frequency wave to the high-frequency antenna, and a transmission line connecting the high-frequency oscillator and the high-frequency antenna. 2. A high-frequency therapeutic device, characterized in that an impedance matching device is provided between the high-frequency antenna and the transmission line so as to achieve impedance matching between the high-frequency antenna and the transmission line. (2) The high-frequency treatment device according to appendix 1, wherein the impedance matching device is a quarter wavelength sleeve. (3) The high frequency treatment device according to any one of items 1 and 2, wherein the high frequency wave used is a microwave.
【００３０】[0030]
【発明の効果】以上説明したように本発明は高周波アン
テナと伝送線路の間の個所にインピーダンス整合器を設
け、高周波アンテナと伝送線路の間のインピーダンス整
合をとり、伝送線路から高周波アンテナに効率よく高周
波が供給されるよるようにしたものであるから、伝送線
路での高周波の損失は少なくなり、伝送線路の異常発熱
等の虞が少なくなり、また、高周波発振器を保護するこ
とができる。しかも、アンテナに高周波が効率よく供給
し処理能力を高めることができる。As described above, according to the present invention, an impedance matching device is provided between the high frequency antenna and the transmission line to achieve impedance matching between the high frequency antenna and the transmission line so that the high frequency antenna can be efficiently transferred from the transmission line. Since the high frequency is supplied, the loss of the high frequency in the transmission line is reduced, the risk of abnormal heat generation of the transmission line is reduced, and the high frequency oscillator can be protected. Moreover, high frequency can be efficiently supplied to the antenna to enhance the processing capability.
【図１】第１実施形態に係る高周波治療器の説明図。FIG. 1 is an explanatory diagram of a high frequency treatment device according to a first embodiment.
【図２】第２実施形態に係る高周波治療器のハンドピー
スの部分の斜視図。FIG. 2 is a perspective view of a portion of a handpiece of the high frequency treatment device according to the second embodiment.
【図３】同じく第２実施形態に係る高周波治療器の高周
波アンテナ形状のバリエーションを示す説明図。FIG. 3 is an explanatory view showing variations of the shape of a high frequency antenna of the high frequency treatment device according to the second embodiment.
【図４】（Ａ）は第３実施形態に係る高周波治療器のハ
ンドピースの先端部付近の斜視図、（Ｂ）は異なる状況
におけるハンドピースの斜視図。FIG. 4A is a perspective view of the vicinity of a distal end portion of a handpiece of a high-frequency treatment device according to a third embodiment, and FIG. 4B is a perspective view of the handpiece in different situations.
１…ハンドピース、２…処置用高周波アンテナ、３…伝
送線路、４…高周波発振器、５…生体、６…対極板、７
…インピーダンス整合器、８…発振器制御装置、１０…
ハンドピース、１１…高周波アンテナ、１２…誘電体、
１３…陽極、１４…陰極、１５…生体、１６…伝送線
路、１７…インピーダンス整合器、１８…フェライトビ
ーズ、２１，２２…針状電極、２３…誘電体、２４…陽
極、２５…陰極、２６…誘電体、２７…刃部、２８…陽
極、２９…陰極、３１…ハンドピース、３２…高周波ア
ンテナ、３３…伝送線路、３４…中心導体、３５…ルー
プ状電極、３６…導体、３７…鞘。1 ... Handpiece, 2 ... Treatment high-frequency antenna, 3 ... Transmission line, 4 ... High-frequency oscillator, 5 ... Living body, 6 ... Counter plate, 7
... Impedance matching device, 8 ... Oscillator control device, 10 ...
Handpiece, 11 ... High frequency antenna, 12 ... Dielectric,
13 ... Anode, 14 ... Cathode, 15 ... Living body, 16 ... Transmission line, 17 ... Impedance matching device, 18 ... Ferrite beads, 21, 22 ... Needle-like electrode, 23 ... Dielectric material, 24 ... Anode, 25 ... Cathode, 26 ... Dielectric material, 27 ... Blade portion, 28 ... Anode, 29 ... Cathode, 31 ... Handpiece, 32 ... High frequency antenna, 33 ... Transmission line, 34 ... Central conductor, 35 ... Loop electrode, 36 ... Conductor, 37 ... Sheath .
Claims (1)
テナと、 前記高周波アンテナに高周波を供給する高周波発振器
と、 前記高周波発振器と高周波アンテナを接続する伝送線路
を備えた高周波治療器において、 前記高周波アンテナと伝送線路の間の個所にインピーダ
ンス整合器を設け、高周波アンテナと伝送線路の間のイ
ンピーダンス整合をとるようにしたことを特徴とする高
周波治療器。1. A high-frequency treatment device comprising a high-frequency antenna for treating a living body with a high-frequency wave, a high-frequency oscillator for supplying a high-frequency wave to the high-frequency antenna, and a transmission line connecting the high-frequency oscillator and the high-frequency antenna. A high-frequency therapeutic device characterized in that an impedance matching device is provided between the antenna and the transmission line so that impedance matching can be achieved between the high-frequency antenna and the transmission line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7304211A JPH09140723A (en) | 1995-11-22 | 1995-11-22 | High-frequency treatment instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7304211A JPH09140723A (en) | 1995-11-22 | 1995-11-22 | High-frequency treatment instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09140723A true JPH09140723A (en) | 1997-06-03 |
Family
ID=17930353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7304211A Pending JPH09140723A (en) | 1995-11-22 | 1995-11-22 | High-frequency treatment instrument |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09140723A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009028542A (en) * | 2007-07-30 | 2009-02-12 | Vivant Medical Inc | Electrosurgical system and printed circuit board for use with it |
| JP2010505571A (en) * | 2006-10-10 | 2010-02-25 | マイクロオンコロジー・リミテッド | Surgical antenna |
| WO2011092946A1 (en) * | 2010-01-29 | 2011-08-04 | オリンパスメディカルシステムズ株式会社 | Treatment device for electrosurgery |
| JP2012533378A (en) * | 2009-07-20 | 2012-12-27 | クレオ・メディカル・リミテッド | Surgical antenna structure |
| JP2018011994A (en) * | 2011-08-10 | 2018-01-25 | 国立大学法人滋賀医科大学 | Microwave surgical instrument |
| US12023094B2 (en) | 2017-12-27 | 2024-07-02 | Creo Medical Limited | Electrosurgical ablation instrument |
-
1995
- 1995-11-22 JP JP7304211A patent/JPH09140723A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010505571A (en) * | 2006-10-10 | 2010-02-25 | マイクロオンコロジー・リミテッド | Surgical antenna |
| JP2009028542A (en) * | 2007-07-30 | 2009-02-12 | Vivant Medical Inc | Electrosurgical system and printed circuit board for use with it |
| JP2012533378A (en) * | 2009-07-20 | 2012-12-27 | クレオ・メディカル・リミテッド | Surgical antenna structure |
| US9236646B2 (en) | 2009-07-20 | 2016-01-12 | Creo Medical Limited | Surgical antenna structure |
| US10136946B2 (en) | 2009-07-20 | 2018-11-27 | Creo Medical Limited | Surgical antenna structure |
| WO2011092946A1 (en) * | 2010-01-29 | 2011-08-04 | オリンパスメディカルシステムズ株式会社 | Treatment device for electrosurgery |
| JP5037727B2 (en) * | 2010-01-29 | 2012-10-03 | オリンパスメディカルシステムズ株式会社 | Electrosurgical instrument |
| US8702701B2 (en) | 2010-01-29 | 2014-04-22 | Olympus Medical Systems Corp. | Treatment device for electrosurgery |
| JP2018011994A (en) * | 2011-08-10 | 2018-01-25 | 国立大学法人滋賀医科大学 | Microwave surgical instrument |
| US12023094B2 (en) | 2017-12-27 | 2024-07-02 | Creo Medical Limited | Electrosurgical ablation instrument |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5511265B2 (en) | Microwave antenna assembly having a dielectric body portion with radial sections of dielectric material | |
| JP3690808B2 (en) | Medical coagulation equipment | |
| US8382748B2 (en) | High efficiency, precision electrosurgical apparatus and method | |
| CN105592886B (en) | Difunctional plasma and unionized microwave condenses electrosurgical unit and integrates the electrosurgery unit that the difunctional plasma and unionized microwave condense electrosurgical unit | |
| AU2003267607B2 (en) | Microwave applicator | |
| US8968297B2 (en) | Microwave and RF ablation system and related method for dynamic impedance matching | |
| JP6583744B2 (en) | Microwave surgical instrument | |
| US7922713B2 (en) | High efficiency, precision electrosurgical apparatus and method | |
| US9028482B2 (en) | Microwave and RF ablation system and related method for dynamic impedance matching | |
| JP2011161224A (en) | Electrosurgical device with choke shorted to biological tissue | |
| US5964759A (en) | Electroconvergent cautery system | |
| JPH06126B2 (en) | Surgical equipment | |
| KR19990082157A (en) | Surgical Electric Cutting Device | |
| JP2004267644A (en) | Electrode rod for biological tissue treatment | |
| KR100360055B1 (en) | Apparatus for biological tissue treatment utilizing high frequency | |
| US20050222566A1 (en) | Electromagnetic field surgical device and method | |
| JP2012020135A (en) | Dual antenna assembly with user-controlled phase shifting | |
| JP7406811B2 (en) | electrosurgical instruments | |
| JP2011050743A (en) | Electrosurgical electrode with insulative coating | |
| JP2022119896A (en) | Ultrapolar electrosurgery blade assembly and ultrapolar electrosurgery pencil with argon beam capability | |
| JP2001518344A (en) | Electric field concentration type electrosurgical electrode | |
| JPH09140723A (en) | High-frequency treatment instrument | |
| JPH08187297A (en) | Microwave treatment device | |
| JP2003111770A (en) | Treating instrument for surgery | |
| JP6784433B2 (en) | Medical treatment tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20041005 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20050308 |