JP3342034B2 - High frequency treatment tool - Google Patents

High frequency treatment tool

Info

Publication number
JP3342034B2
JP3342034B2 JP05821492A JP5821492A JP3342034B2 JP 3342034 B2 JP3342034 B2 JP 3342034B2 JP 05821492 A JP05821492 A JP 05821492A JP 5821492 A JP5821492 A JP 5821492A JP 3342034 B2 JP3342034 B2 JP 3342034B2
Authority
JP
Japan
Prior art keywords
electrodes
frequency treatment
frequency
gripping
treatment
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 - Fee Related
Application number
JP05821492A
Other languages
Japanese (ja)
Other versions
JPH05253241A (en
Inventor
隆康 宮城
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.)
Olympus Corp
Original Assignee
Olympus Optic 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 Olympus Optic Co Ltd filed Critical Olympus Optic Co Ltd
Priority to JP05821492A priority Critical patent/JP3342034B2/en
Publication of JPH05253241A publication Critical patent/JPH05253241A/en
Application granted granted Critical
Publication of JP3342034B2 publication Critical patent/JP3342034B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は、切除等の処置が必要と
される組織部分のみに高周波電流を通電して医療処置を
行う高周波処置具に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-frequency treatment device for applying a high-frequency current only to a tissue portion requiring treatment such as resection to perform a medical treatment.

【0002】[0002]

【従来技術】高周波処置具は種々の外科手術に使用され
ており、最近では開腹しないで、内視鏡の観察下での手
術にも多用されている。従来は、切除とか止血等の処置
を行う場合には、2本の処置具を使って1つの処置具で
処置したい部位を把持し、処置しやすいようにして(処
置しやすい位置に移動して)もう1つの処置具を(主に
高周波処置具が挙げられる)使って処置していた。
2. Description of the Related Art A high-frequency treatment device is used for various surgical operations, and recently, it is often used for operations under observation of an endoscope without laparotomy. Conventionally, when performing a procedure such as excision or hemostasis, a portion to be treated is grasped with one treatment tool using two treatment tools so that the treatment is facilitated (by moving to a position where treatment is easy). ) Another treatment tool (mainly a high-frequency treatment tool) was used for treatment.

【0003】この方法であると、2本の処置具を使用す
るので、作業が複雑になるし、また患者にとっても体皮
に開ける各種処置具、内視鏡を挿入するための挿入穴の
数が増えて、負担が大きくなるという2つの欠点があ
る。又、上記方法であると、高周波処置具が目的部位以
外の正常組織に触れることも多々あるので、正常組織に
電気的損傷を与えるおそれもある。
According to this method, since two treatment tools are used, the operation becomes complicated, and the number of insertion tools for inserting various treatment tools and endoscopes which can be opened in the body skin for a patient. However, there are two drawbacks in that the load increases and the burden increases. In addition, according to the above-described method, the high-frequency treatment instrument often touches normal tissue other than the target site, and thus may cause electrical damage to the normal tissue.

【0004】このため、例えば特開昭61ー50106
8号の従来例では、処置具の先端に目的部位を挟んでそ
の挟んだ部材に高周波電流を流して処置することが可能
な外科用の処置具を開示している。
For this reason, for example, Japanese Patent Application Laid-Open No. 61-50106
No. 8 discloses a surgical treatment tool capable of performing treatment by sandwiching a target portion at the distal end of the treatment tool and applying a high-frequency current to a member sandwiched between the target portions.

【0005】[0005]

【発明が解決しようとする問題点】上記従来例の処置具
であると、高周波電流を流す部材が外部にむき出しにな
っており、対象部位の周りの正常な生体組織に電気的損
傷を負わしてしまうという欠点がある。
In the above-mentioned conventional treatment device, the member for flowing the high-frequency current is exposed to the outside, and the normal living tissue around the target site is electrically damaged. There is a disadvantage that it will.

【0006】本発明は上述した点に鑑みてなされたもの
で、高周波処置を簡単にできると共に、安全性も確保で
きる高周波処置具を提供することを目的とする。
[0006] The present invention has been made in view of the above points, and has as its object to provide a high-frequency treatment instrument which can simplify high-frequency treatment and can ensure safety.

【0007】[0007]

【問題点を解決する手段及び作用】先端に先端把持部を
備え、生体内に挿入して高周波電流を通電して医療処置
を行う高周波処置具において、前記先端把持部は対向す
る把持面を有して開閉自在に配置され、少なくとも一方
の前記把持面の一端から他端近傍に亘って、少なくとも
1本のライン状の電;極が設けられると共に、前記ライ
ン状の電極以外の部分が電気的に絶縁されていることに
より、先端把持部の対向する把持面で対象となる組織を
挟んで把持することで、把持面に設けた電極で切除等の
高周波処置が簡単にでき、且つ電極が接触する部位以外
の生体組織には電気的損傷を与えることを防止して安全
性を確保している。
To the means and act to solve the problem] tip distal clasps
A high-frequency treatment device for performing a medical treatment by inserting a high-frequency current into a living body and performing medical treatment, wherein the distal-end gripping portions face each other.
Openable and closable, with at least one
At least from one end of the gripping surface to the vicinity of the other end.
One line-shaped electrode;
The target tissue is grasped on the opposing gripping surface of the tip gripping part because the parts other than the pin-shaped electrode are electrically insulated.
By sandwiching and grasping, high-frequency treatment such as excision can be easily performed with the electrode provided on the grasping surface , and safety is secured by preventing electrical damage to living tissue other than the area where the electrode contacts. are doing.

【0008】[0008]

【実施例】以下、図面を参照して本発明の実施例を具体
的に説明する。図1及び図2は本発明の第1実施例に係
り、図1は第1実施例の高周波処置具の全体構成を示
し、図2は高周波処置具の先端に形成した先端把持部の
拡大図を示す。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to the drawings. 1 and 2 relate to a first embodiment of the present invention. FIG. 1 shows the entire configuration of the high-frequency treatment device of the first embodiment, and FIG. 2 is an enlarged view of a distal end grip portion formed at the distal end of the high-frequency treatment device. Is shown.

【0009】図1に示すように第1実施例の高周波処置
具1は硬性の軸部2と、この軸部2の先端に形成された
先端把持部3と、前記軸部2の後端に設けられた1対の
ハンドル4a,4bとから構成される。この1対のハン
ドル4a,4bはピン5で回動自在に連結され、下端に
は指掛けが形成されている。一方のハンドル4aの頂部
に軸部2を形成するパイプ2aの後端が挿入され、接着
剤などで固定されている。
As shown in FIG. 1, a high-frequency treatment instrument 1 according to a first embodiment has a rigid shaft portion 2, a tip grip portion 3 formed at the tip of the shaft portion 2, and a rear end of the shaft portion 2. It is composed of a pair of handles 4a, 4b provided. The pair of handles 4a and 4b are rotatably connected by a pin 5, and a finger hook is formed at a lower end. The rear end of the pipe 2a forming the shaft 2 is inserted into the top of one handle 4a, and is fixed with an adhesive or the like.

【0010】このパイプ2a内に挿通された軸棒2bの
後端は絶縁部材6と接続され、この絶縁部材6の後端の
半球部は他方のハンドル4bの頂部に形成した溝内に収
納されている。又、一方のハンドル4aの頂部には高周
波ピン7が突設され、この高周波ピン7の基端の図示し
ない2接点は軸部2を形成するパイプ2a又はこのパイ
プ2aの内部に挿通される軸棒2bの図示しない2本の
導体部と導通している。又、パイプ2aと軸棒2bは先
端把持部3を形成する把持部材3a,3bに設けた電極
8a,8b(図2参照)と導通している。又、1対のハ
ンドル4a,4bは絶縁塗装されている。
The rear end of the shaft rod 2b inserted into the pipe 2a is connected to an insulating member 6, and the hemispherical portion at the rear end of the insulating member 6 is housed in a groove formed on the top of the other handle 4b. ing. A high-frequency pin 7 protrudes from the top of one handle 4a, and two contacts (not shown) at the base end of the high-frequency pin 7 are connected to a pipe 2a forming the shaft portion 2 or a shaft inserted into the pipe 2a. It is electrically connected to two conductors (not shown) of the rod 2b. The pipe 2a and the shaft 2b are electrically connected to the electrodes 8a and 8b (see FIG. 2) provided on the holding members 3a and 3b forming the tip holding portion 3. The pair of handles 4a and 4b are coated with insulation.

【0011】上記軸部2の先端は図1の拡大図に示すよ
うに軸棒2bの先端はリンク機構9を介して1対の把持
部材3a,3bと接続され、軸棒2bを進退移動するこ
とによって1対の把持部材3a,3bを開閉できるよう
になっている。又、この軸棒2bとパイプ2aとの先端
にはOリング11を介装して水密構造にしている。又、
このパイプ2aの外周面は絶縁チューブ12で被覆され
ている。
As shown in the enlarged view of FIG. 1, the tip of the shaft portion 2 is connected to a pair of gripping members 3a, 3b via a link mechanism 9 to move the shaft 2b forward and backward. Thus, the pair of gripping members 3a, 3b can be opened and closed. An O-ring 11 is interposed at the tip of the shaft 2b and the pipe 2a to form a watertight structure. or,
The outer peripheral surface of the pipe 2a is covered with an insulating tube 12.

【0012】図2は把持部材3a,3bを拡大して示
し、把持部材3a,3bにおける生体組織を把持する把
持面13a,13bには電極8a,8bが設けてある。
つまり、把持部材3a,3bにおける対向する内側の把
持面13a,13bにおける対向する位置にそれぞれラ
イン状の電極8a,8bが埋設されており、把持部材3
a,3bが閉じた時接触する様になっている。
FIG. 2 shows the gripping members 3a and 3b in an enlarged manner. Electrodes 8a and 8b are provided on gripping surfaces 13a and 13b of the gripping members 3a and 3b for gripping living tissue.
That is, the line-shaped electrodes 8a and 8b are embedded at opposing positions on the opposing inner gripping surfaces 13a and 13b of the gripping members 3a and 3b, respectively.
When a and 3b are closed, they come into contact with each other.

【0013】この電極8a,8bは図示しないリード線
でパイプ2a又は軸棒2bの導体部(例えば一方の導体
部はパイプ2aで他方の導体部はパイプ2aと絶縁され
たリード線)と導通している。把持部材3a,3bにお
ける電極8a,8b以外の表面は絶縁塗装されている。
なお、電極8a,8bの面積は等しく、且つ把持面13
a,13b全体の面積に比較して十分小さく設けられて
いる。
The electrodes 8a and 8b are electrically connected to conductors of the pipe 2a or the shaft 2b by lead wires (not shown) (for example, one conductor is a pipe 2a and the other conductor is a lead wire insulated from the pipe 2a). ing. The surfaces of the gripping members 3a, 3b other than the electrodes 8a, 8b are coated with insulation.
The areas of the electrodes 8a and 8b are equal, and
a, 13b are provided sufficiently smaller than the entire area.

【0014】この第1実施例の使用例を説明する。ま
ず、図示しないトラカールで生体の腹部などに穿刺穴を
開け、スコープとかこの高周波処置具1を挿入する。
又、高周波ピン7をケーブルを介して高周波電源と接続
し、高周波電源のスイッチをONする。
An example of use of the first embodiment will be described. First, a puncture hole is made in the abdomen or the like of a living body with a trocar (not shown), and a scope or this high-frequency treatment instrument 1 is inserted.
Further, the high frequency pin 7 is connected to a high frequency power supply via a cable, and a switch of the high frequency power supply is turned on.

【0015】図1に示すようにハンドル4a,4bを把
持し、2点鎖線で示すように一方のハンドル4aに対し
て他方のハンドル4bを開く操作を行うことによって把
持部材3a,3bを開くことができる。そして開いた把
持部材3a,3bで切除すべき対象組織を把持するよう
に把持部材3a,3bを閉じる。すると、電極8a,8
bの間に高周波電流が流れ、電極8a,8bに接触する
組織を高周波電流で切除することができる。なお、把持
部材3a,3bを閉じた後、フットスイッチ等をONし
て高周波電流を流すようにしても良い。
Opening the gripping members 3a, 3b by gripping the handles 4a, 4b as shown in FIG. 1 and performing an operation of opening the other handle 4b with respect to one handle 4a as shown by a two-dot chain line. Can be. Then, the gripping members 3a, 3b are closed so as to grip the target tissue to be cut by the opened gripping members 3a, 3b. Then, the electrodes 8a, 8
The high-frequency current flows during the period b, and the tissue in contact with the electrodes 8a and 8b can be cut by the high-frequency current. After closing the grip members 3a and 3b, a high-frequency current may be supplied by turning on a foot switch or the like.

【0016】この第1実施例によれば先端把持部3も電
極8a,8b以外は絶縁されているので、目的部位以外
の正常な組織に電気的損傷を負わすことがなく、安全で
ある。
According to the first embodiment, the distal end gripping portion 3 is also insulated except for the electrodes 8a and 8b, so that normal tissues other than the target site are not electrically damaged and are safe.

【0017】又、電極8a,8bの面積は十分に小さい
ので、確実な切除等の処置が可能になる(電極8a,8
bに展開するエネルギはその表面積の逆数に比例す
る)。従来は2本の処置具を使用して行っていた処置を
1本の処置具で可能にしているので、患者に開ける挿入
穴も少なくて済み、患者の負担も少なくなる。さらに、
術者の側からみても、処置を容易かつ短時間に終了でき
る。
Further, since the area of the electrodes 8a and 8b is sufficiently small, it is possible to reliably perform a treatment such as excision (the electrodes 8a and 8b).
The energy developed in b is proportional to the reciprocal of its surface area). Conventionally, treatment using two treatment tools is performed with one treatment tool, so that the number of insertion holes to be opened in the patient can be reduced, and the burden on the patient can be reduced. further,
The procedure can be completed easily and in a short time from the viewpoint of the surgeon.

【0018】図3は本発明の第2実施例における先端把
持部21を示す。この第2実施例は図2に示す把持部材
3a,3bにおける電極8a,8bに加え、その両側に
1対の電極22a,22bと23a,23bとを設けて
ある。この実施例では中央の電極8a,8bは切除用電
流を流す電極で、その両側の電極22a,22bと23
a,23bは止血用電流を流す電極としている。電極2
2a,22bと23a,23bは例えば電極8a,8b
と同じ形状及び面積であるが、流す電流の波形が異な
る。
FIG. 3 shows a tip grip 21 according to a second embodiment of the present invention. In the second embodiment, a pair of electrodes 22a, 22b and 23a, 23b are provided on both sides in addition to the electrodes 8a, 8b of the gripping members 3a, 3b shown in FIG. In this embodiment, the central electrodes 8a and 8b are electrodes through which a current for ablation flows, and the electrodes 22a, 22b and 23 on both sides thereof.
Reference numerals a and 23b denote electrodes through which a hemostatic current flows. Electrode 2
2a, 22b and 23a, 23b are, for example, electrodes 8a, 8b
Although the shape and area are the same as those described above, the waveform of the flowing current is different.

【0019】互いに対向する電極22a,22bと23
a,23bは図示しないリード線を介して高周波ピン7
と接続されている。この高周波ピン7を介して高周波電
源から電極8a,8bには切除用電流が供給され、電極
22a,22bと23a,23bには止血用電流が供給
される。その他の構成は第1実施例と同様である。
The electrodes 22a, 22b and 23 facing each other
a and 23b are high-frequency pins 7 via lead wires (not shown).
Is connected to An ablation current is supplied to the electrodes 8a and 8b from the high-frequency power supply via the high-frequency pin 7, and a hemostatic current is supplied to the electrodes 22a and 22b and 23a and 23b. Other configurations are the same as in the first embodiment.

【0020】この実施例によれば、対象とする部位を切
除或いは切断する時に、電極8a,8bには切除用電流
を、電極22a,22bと23a,23bには止血用電
流を同時に流すと、対象とする部位を電極8a,8bに
当たる部分で2つに切断するのと同時に止血の処置を行
える。その他の作用・効果は第1実施例と同じである。
According to this embodiment, when a target site is cut or cut, a cutting current is applied to the electrodes 8a and 8b and a hemostatic current is applied to the electrodes 22a and 22b and 23a and 23b at the same time. At the same time as the target portion is cut into two portions at the portions corresponding to the electrodes 8a and 8b, a hemostatic treatment can be performed. Other functions and effects are the same as those of the first embodiment.

【0021】ところで、従来のトラカールに付いている
封止弁(オートバルブ、トランペット弁)はスコープ挿
入時は付勢された弁が常にスコープと接触している為、
軟性スコープには適用できなかった。又、弁の構造が複
雑な為、洗浄が面倒であった。このため、図4(a)に
示すような捻り弁付きトラカールの外套構造にしても良
い。
By the way, the sealing valve (auto valve, trumpet valve) attached to the conventional trocar has a biased valve which is always in contact with the scope when the scope is inserted.
Not applicable to flexible scope. Further, since the structure of the valve is complicated, cleaning is troublesome. For this reason, a trocar with a torsion valve as shown in FIG.

【0022】トラカールの外套管31のフランジ状基部
32の手元側に、外周に複数の螺旋溝33を設けた軟性
チューブ34の一端が接続されている。この軟性チュー
ブ34の他端はフランジ状基部35の開口部に接続さ
れ、この開口部は軟性チューブ34を介してフランジ状
基部32の開口部、つまり外套管31の管腔と連通して
いる。
One end of a flexible tube 34 provided with a plurality of spiral grooves 33 on the outer periphery is connected to the proximal side of the flange-like base 32 of the outer tube 31 of the trocar. The other end of the flexible tube 34 is connected to an opening of the flange base 35, and this opening communicates with the opening of the flange base 32 via the flexible tube 34, that is, the lumen of the mantle tube 31.

【0023】そして、2つの基部32、35は軟性チュ
ーブ34の外周に設けたバネ等の付勢部材36で連結さ
れ、この付勢部材36による付勢力で通常の状態では軟
性チューブ34は捻られており、トラカールの開口部は
閉じられている。又、軟性チューブ34には螺旋溝33
が設けてあるので、容易に捻ることができる。この付勢
部材36を取り除くと図4(b)に示すように外套管3
1にチューブ34が接続された普通の筒状態になる。
The two bases 32 and 35 are connected by a biasing member 36 such as a spring provided on the outer periphery of the flexible tube 34. The flexible tube 34 is twisted in a normal state by the biasing force of the biasing member 36. And the opening of the trocar is closed. The flexible tube 34 has a spiral groove 33.
Is provided, so that it can be easily twisted. When the urging member 36 is removed, as shown in FIG.
1 is in a normal tubular state in which the tube 34 is connected.

【0024】この外套管31の作用は以下のようにな
る。図4(a)に示す状態に対し、軟性チューブ34の
捻りを外力を加えて戻すことにより、開口部は大きく開
口し、そこにスコープ、処置具等を挿入して、外力を取
り除くと軟性チューブ34は付勢部材36により、また
元に戻ろうとする(開口部が閉じた状態になろうとす
る)。これにより、挿入物が挿入された時でも気密構造
となる。
The operation of the mantle tube 31 is as follows. In the state shown in FIG. 4 (a), the opening of the flexible tube 34 is largely opened by applying an external force to return the torsion of the flexible tube 34, and a scope, a treatment tool or the like is inserted therein. Numeral 34 tries to return to the original state by the urging member 36 (the opening is about to be closed). This provides an airtight structure even when the insert is inserted.

【0025】従って、気密構造に容易に保つことができ
る。又、弁構造等が複雑な構造でなく、1本の筒になる
ので洗浄性が向上する。さらに、あらゆる径の挿入物で
も気密を保つことが可能になる。
Therefore, the airtight structure can be easily maintained. In addition, since the valve structure and the like are not complicated structures and are formed as a single tube, the cleaning performance is improved. Furthermore, it is possible to keep the inserts of any diameter airtight.

【0026】ところで、送気・送水チューブのようにダ
ブルルーメンチューブを1本に合流させる場合、以下に
示すようにして合流させても良い。図5(a)に示すダ
ブルルーメンチューブ41の2つの断面が円形の管路4
2、43の互いに対向(隣接)する半円部を端部側から
取り除くように切断して図5(b)に示すようにする。
そして、対向する切断面44、45をテーパ状に合流さ
せ、対向する2つの切断面44、45を接合して、隣接
する半円部は円形にされ、図5(c)に示すように合流
したチューブにする。
Incidentally, when the double lumen tubes are merged into one such as the air / water supply tube, they may be merged as shown below. A pipe 4 having two circular cross sections of a double lumen tube 41 shown in FIG.
The semicircular portions 2 (43) facing each other (adjacent) are cut so as to be removed from the end side, as shown in FIG. 5B.
Then, the opposing cut surfaces 44 and 45 are merged in a tapered shape, and the two opposing cut surfaces 44 and 45 are joined to form an adjacent semicircular portion into a circular shape, as shown in FIG. Tube.

【0027】一方、図6(a)及び図6(b)に示すよ
うに2つのチューブ51、52において、一方のチュー
ブ51は軸と直角に中央まで切断し、その切断面から外
径方向にテーパ状に切断し、他方のチューブ52は端面
を中心から外径方向にテーパ状に切り欠く。おのおのの
チューブ51、52をその切断面で滑らかに合流するよ
うに接合して図6(c)に示すように合流したチューブ
にする。
On the other hand, as shown in FIGS. 6A and 6B, in the two tubes 51 and 52, one of the tubes 51 is cut to the center at right angles to the axis, and the outer surface is cut in the radial direction from the cut surface. The tube 52 is cut into a tapered shape, and the other tube 52 is cut out from the center in a tapered shape in the outer diameter direction from the center. The tubes 51 and 52 are joined so that they merge smoothly at the cut surface to form a merged tube as shown in FIG.

【0028】図5又は図6に示すチューブによれば、チ
ューブ同士の接合なので、パイプによるつなぎ大きさを
小さくできる。又、簡単に送気・送水管路を合流できる
ので、流路が単純になる。又、チューブ接続部の省スペ
ースを実現できるので、スコープの細径化が可能にな
る。又、流体の流路が単純になるので、洗浄性が向上す
る。
According to the tubes shown in FIGS. 5 and 6, since the tubes are joined to each other, the size of the pipe connection can be reduced. Further, since the air / water supply conduit can be easily joined, the flow path is simplified. In addition, since the space for the tube connection can be saved, the diameter of the scope can be reduced. In addition, since the flow path of the fluid is simplified, the cleaning property is improved.

【0029】なお、図1の軸部2をフレキシブルにして
軟性内視鏡のチャンネル内を挿通して使用できるように
しても良い。又、先端把持部を2つの把持部材が開閉す
る構造に限らず、3つ以上に開閉しその中の2つ以上の
把持部材における対向する把持面に電極を設けるように
しても良い。
It should be noted that the shaft portion 2 in FIG. 1 may be made flexible so that it can be used by being inserted through the channel of the flexible endoscope. In addition, the structure is not limited to the structure in which the two gripping members open and close the tip gripping portion, and three or more gripping members may be opened and closed, and electrodes may be provided on the opposite gripping surfaces of two or more gripping members.

【0030】[0030]

【発明の効果】以上説明したように本発明によれば、先
端把持部を形成する把持部材の対向する把持面に電極を
設けてあるので、切除などを行う対象部組織以外に電気
的損傷を与えることを防止でき、安全性を向上できる。
又、把持する操作で切除などの高周波処置を簡単に行う
ことができる。
As described above, according to the present invention, since the electrodes are provided on the opposite gripping surfaces of the gripping members forming the tip gripping portions, electrical damage is caused to the tissue other than the target tissue to be cut or the like. Can be prevented and safety can be improved.
In addition, high-frequency treatment such as excision can be easily performed by a gripping operation.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の第1実施例の高周波処置具の全体構成
図。
FIG. 1 is an overall configuration diagram of a high-frequency treatment device according to a first embodiment of the present invention.

【図2】第1実施例の高周波処置具の先端把持部を拡大
して示す斜視図。
FIG. 2 is an enlarged perspective view showing a distal end grip portion of the high-frequency treatment device according to the first embodiment.

【図3】本発明の第2実施例の高周波処置具における先
端把持部を拡大して示す斜視図。
FIG. 3 is an enlarged perspective view showing a distal end grip portion in a high-frequency treatment device according to a second embodiment of the present invention.

【図4】捻り弁付きのトラカール外套管の構造を示す斜
視図。
FIG. 4 is a perspective view showing the structure of a trocar mantle tube with a torsion valve.

【図5】ダブルルーメンチューブを形成する工程の1例
を示す説明図。
FIG. 5 is an explanatory view showing one example of a process for forming a double lumen tube.

【図6】ダブルルーメンチューブを形成する工程の他の
1例を示す説明図。
FIG. 6 is an explanatory view showing another example of the step of forming the double lumen tube.

【符号の説明】[Explanation of symbols]

1…高周波処置具 2…軸部 3…先端把持部 3a,3b…把持部材 4a,4b…ハンドル 5…ピン 7…高周波ピン 8a,8b…電極 9…リンク機構 12…絶縁チューブ 13a,13b…把持面 DESCRIPTION OF SYMBOLS 1 ... High frequency treatment tool 2 ... Shaft part 3 ... Tip holding part 3a, 3b ... Holding member 4a, 4b ... Handle 5 ... Pin 7 ... High frequency pin 8a, 8b ... Electrode 9 ... Link mechanism 12 ... Insulating tube 13a, 13b ... Holding surface

Claims (4)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 先端に先端把持部を備え、生体内に挿入
して高周波電流を通電して医療処置を行う高周波処置具
において、前記先端把持部は対向する把持面を有して開閉自在に配
置され、少なくとも一方の前記把持面の一端から他端近
傍に亘って、少なくとも1本のライン状の電極が設けら
れると共に、前記ライン状の電極以外の部分が電気的に
絶縁されている ことを特徴とする高周波処置具。
1. A high-frequency treatment instrument having a distal end grip portion at a distal end thereof, which is inserted into a living body to apply a high-frequency current to carry out a medical treatment, wherein the distal end grip portion has an opposite gripping surface and can be freely opened and closed. Arrangement
From one end of at least one of the gripping surfaces to the other end.
At least one linear electrode is provided alongside
And the parts other than the linear electrodes are electrically
A high-frequency treatment instrument characterized by being insulated .
【請求項2】(2) 前記ライン状の電極は前記対向する把持The line-shaped electrodes are the opposite grips
面のそれぞれに設けられることを特徴とする請求項1に2. The method according to claim 1, wherein each of the surfaces is provided.
記載の高周波処置具。The high-frequency treatment device as described in the above.
【請求項3】(3) 前記ライン状の電極は前記対向する把持The line-shaped electrodes are the opposite grips
面の先端から基端近傍に亘って設けられたことを特徴とCharacterized by being provided from the front end of the surface to the vicinity of the base end
する請求項1または2に記載の高周波処置具。The high-frequency treatment device according to claim 1 or 2, wherein
【請求項4】(4) 前記ライン状の電極は略並行に設けられThe linear electrodes are provided substantially in parallel.
た3本の電極からなり、中心に設けられた電極は切除用Consists of three electrodes, and the center electrode is for cutting
電流が流される電極からなると共に、残余の電極は止血It consists of electrodes through which current flows, and the remaining electrodes stop bleeding
用電流が流される電極からなることを特徴とする請求項The electrode comprises a current-carrying electrode.
1ないし3のいずれか1つに記載の高周波処置具。4. The high-frequency treatment device according to any one of 1 to 3.
JP05821492A 1992-03-16 1992-03-16 High frequency treatment tool Expired - Fee Related JP3342034B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP05821492A JP3342034B2 (en) 1992-03-16 1992-03-16 High frequency treatment tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP05821492A JP3342034B2 (en) 1992-03-16 1992-03-16 High frequency treatment tool

Publications (2)

Publication Number Publication Date
JPH05253241A JPH05253241A (en) 1993-10-05
JP3342034B2 true JP3342034B2 (en) 2002-11-05

Family

ID=13077809

Family Applications (1)

Application Number Title Priority Date Filing Date
JP05821492A Expired - Fee Related JP3342034B2 (en) 1992-03-16 1992-03-16 High frequency treatment tool

Country Status (1)

Country Link
JP (1) JP3342034B2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5807393A (en) * 1992-12-22 1998-09-15 Ethicon Endo-Surgery, Inc. Surgical tissue treating device with locking mechanism
US8123746B2 (en) 2003-04-28 2012-02-28 Olympus Corporation High-frequency current treatment tool
JP4197983B2 (en) * 2003-04-28 2008-12-17 オリンパス株式会社 High frequency treatment tool
JP2007282847A (en) 2006-04-17 2007-11-01 Olympus Medical Systems Corp Flexible bipolar forceps
CN101553177B (en) 2006-11-09 2012-03-07 国立大学法人滋贺医科大学 Microwave endoscope forceps
US20090048589A1 (en) * 2007-08-14 2009-02-19 Tomoyuki Takashino Treatment device and treatment method for living tissue
PL2959854T3 (en) * 2014-06-25 2018-07-31 Erbe Elektromedizin Gmbh Surgical instrument

Also Published As

Publication number Publication date
JPH05253241A (en) 1993-10-05

Similar Documents

Publication Publication Date Title
JP4436698B2 (en) High frequency treatment tool
US7083617B2 (en) Methods and apparatus for the treatment of gastric ulcers
JP2552424B2 (en) Bipolar electrosurgical forceps
JP3384750B2 (en) High frequency treatment tool
US5827279A (en) Knife coupler mechanism for an endoscopic instrument
US5423814A (en) Endoscopic bipolar coagulation device
US6110171A (en) Electrosurgical cutting and coagulating instrument for open surgery
CA2188241C (en) Self protecting knife for curved jaw surgical instruments
EP1813303B1 (en) Medical instrument including an end effector having a medical treatment electrode
ES2365020T3 (en) SEALING PRESSURE CONTROL OF A VASCULAR FABRIC.
EP1994904B1 (en) High frequency surgical instrument
US6443970B1 (en) Surgical instrument with a dissecting tip
US6554829B2 (en) Electrosurgical instrument with minimally invasive jaws
US20020173786A1 (en) Methods and apparatus for on-endoscope instruments having end effectors and combinations of on-endoscope and through-endoscope instruments
JPH11137563A (en) Composite type bi-polar scissors and gripping apparatus
JP4767761B2 (en) High frequency treatment tool
JP2008054926A (en) Microwave surgical instrument
JP2002528167A (en) Endoscope bipolar electrosurgical forceps
JPH055106U (en) High frequency treatment tool for endoscope
JP3342034B2 (en) High frequency treatment tool
JP2003175054A (en) High frequency treatment tool
WO1998043548A1 (en) Hand-held forceps instrument
JPH0542167A (en) High-frequency treating means for endoscope
US20050080451A1 (en) Device with deflectable distal end and related methods of use
US20210307807A1 (en) Multi-modality forceps

Legal Events

Date Code Title Description
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20020807

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20080823

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090823

Year of fee payment: 7

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100823

Year of fee payment: 8

LAPS Cancellation because of no payment of annual fees