JPH09538A - High-frequency medical treatment instrument - Google Patents

High-frequency medical treatment instrument

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Publication number
JPH09538A
JPH09538A JP7176868A JP17686895A JPH09538A JP H09538 A JPH09538 A JP H09538A JP 7176868 A JP7176868 A JP 7176868A JP 17686895 A JP17686895 A JP 17686895A JP H09538 A JPH09538 A JP H09538A
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JP
Japan
Prior art keywords
electrode
portion
treatment instrument
contact portion
high
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
Application number
JP7176868A
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Japanese (ja)
Inventor
Hirosada Hashimoto
大定 橋本
Original Assignee
Fuji Photo Optical Co Ltd
Hirosada Hashimoto
Shinko Koki Seisakusho:Kk
富士写真光機株式会社
有限会社新興光器製作所
大定 橋本
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Application filed by Fuji Photo Optical Co Ltd, Hirosada Hashimoto, Shinko Koki Seisakusho:Kk, 富士写真光機株式会社, 有限会社新興光器製作所, 大定 橋本 filed Critical Fuji Photo Optical Co Ltd
Priority to JP7176868A priority Critical patent/JPH09538A/en
Publication of JPH09538A publication Critical patent/JPH09538A/en
Application status is Pending legal-status Critical

Links

Abstract

PURPOSE: To perform various types of medical treatment via use of a single treatment instrument by applying a constitution that an electrode oscillating due to travel of a transmission rod inserted in an outer tube is formed to have a plane contact section, a line contact section at both right and left sides thereof, and a point contact section at the front end. CONSTITUTION: When an operation lever 12 is operated by fingers or the like, a transmission rod 21 is displaced along an axial line direction, thereby oscillating and displacing an electrode 3. Also, when a turning operation ring 24 is turned by fingers or the like for axially turning an outer tube 20, the electrode 3 turns. In this case, the side of an electrode body 30 of the electrode 3 is thinned and one side of the body 30 is formed as a plane contact section 30a of large area curved right and left. Also, right and left edges of the body 30 are formed as rounded and thin line contact sections 30b. In addition, the front end of the body 30 is sharpened in a dull state to form a point contact section 30c. According to this construction, not only a surgery, but also medical treatment for coagulation can be undertaken by the use of a single high-frequency medial treatment instrument. Furthermore, an incision can be easily and properly made along the prescribed direction.

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、体腔内において、臓器や組織その他の切開や切断、及び出血部分の凝固等の処置を行うための高周波処置具に関するものである。 BACKGROUND OF THE INVENTION This invention is in the body cavity, to a high-frequency treatment instrument for performing organ or tissue other incision and cutting, and a treatment such as coagulation of bleeding portion.

【0002】 [0002]

【従来の技術】例えば、腹腔内において、胆嚢の摘出手術を行う際に、複数のトラカールを腹腔内に差し込んで、そのうちの一つのトラカールには内視鏡を挿入して、この内視鏡による観察下で、鉗子その他の処置具を他のトラカールを介して腹腔内に挿入して、胆嚢を把持させた状態で、さらにもう一つのトラカールから所謂電気メスとも呼ばれる高周波処置具を挿入して、胆嚢を他の臓器から剥離するようにして行う。 BACKGROUND ART For example, in the abdominal cavity, when performing a surgical removal of the gall bladder, insert the plurality of trocars into the abdominal cavity, the one trocar of them by inserting an endoscope, according to the endoscope under observation, by inserting forceps and other treatment tools into the abdominal cavity through other trocars, while being gripped gallbladder, further by inserting the high frequency treatment instrument, also a so-called electrical scalpel from another trocar, performed as to peel the gallbladder from other organs.

【0003】この種の高周波処置具は、トラカール内に挿入される挿入部の先端部分に先端電極を設けたものであり、この先端電極と患者に当接させた患者側電極板との間に高周波電流を流し、先端電極が当接する体内組織部分にジュール熱を生じさせることによって、臓器や組織等の切開や切断等の処置を行うことができる。 [0003] high-frequency treatment instrument of this type are those having a tip electrode at the distal end portion of the insertion portion to be inserted into a trocar, between the patient-side electrode plate is brought into contact with the tip electrode and the patient flowing a high frequency current, by causing Joule heat in the body tissue portion tip electrode abuts, it is possible to perform treatment of incision and cutting, etc. of organs or tissues, or the like.

【0004】ここで、前述した肝臓から胆嚢を剥離する処置を施す場合等において、その境界部分に沿って正確に切断しなければならず、この切断部分が入り組んでいる場合があり、また血管が通っている部位を避けるようにして切断して行く必要がある等、高周波処置具における電極の方向や動きを微細に制御する必要がある。 [0004] Here, in such a case of applying a treatment for peeling the gallbladder from the liver as described above, must be accurately cut along the boundary portion, it may have intricate this cut portion, also blood vessels etc. it is necessary to cut so as to avoid the site which has passed through, the direction and movement of the electrodes in electro-surgical device has to be finely controlled. このために、従来は、直線状,L字状,J字状等のように、 For this, conventionally, straight, L-shaped, as J-shape or the like,
様々な形状をした電極を装着した複数の処置具を用意しておき、切開等を行う部位や方向等に応じて、最適な形状の電極を有する処置具を用いるようにしている。 We are prepared a plurality of treatment instrument equipped with electrodes of various shapes, depending on the site and direction for performing the incision or the like, and to use a treatment instrument having an electrode of the optimum shape.

【0005】 [0005]

【発明が解決しようとする課題】ところで、前述したように、処置を施す部位や、その状況に応じて異なる形状の電極を装着した高周波処置具を交換して使用するには、トラカールから抜き出して、他の処置具をこのトラカールに挿通しなければならないことから、その操作が極めて煩わしいものであるだけでなく、処置に要する時間が長くなる等といった問題がある。 [SUMMARY OF THE INVENTION Incidentally, as described above, or part subjected to treatment, to be used by replacing the high-frequency treatment instrument equipped with electrodes of different shapes depending on the situation, it is withdrawn from the trocar , from having to insert the other of the treatment instrument in the trocar, the operation is not only is extremely troublesome, there is a problem such that the time required for treatment becomes long. また、処置を施す間には、出血が生じることがあり、その止血を行うために高周波による凝固を行うが、前述した処置具では必ずしも凝固を確実に行えず、従って止血部分の凝固用の処置具も併せて用いる必要があり、さらに操作の煩わしさが増し、処置が長時間化するという問題もある。 Further, while performing a treatment, it may bleed occurs, it performs the coagulation by high frequency in order to perform the hemostasis can not be performed reliably necessarily coagulation by treatment instrument described above, therefore treatment for coagulation hemostatic portion must be used in conjunction also ingredients, it increases the further troublesome operation, there is a problem that the procedure is prolonged.

【0006】本発明は以上の点に鑑みてなされたものであって、その目的とするところは、単一の処置具によって、様々な処置を施せるようにすることにある。 The present invention was made in view of the above problems, it is an object by a single treatment tool is to make it Hodokoseru various procedures.

【0007】 [0007]

【課題を解決するための手段】前述した目的を達成するために、本発明は、外套管内に軸線方向に移動可能な伝達杆を挿通してなる挿入部の先端に、伝達杆の移動により揺動する電極を装着し、この電極は、曲面乃至平面形状となった面接触部と、この面接触部の左右両側に形成した線接触部と、先端に形成した点接触部を有する構成としたことをその特徴とするものである。 To SUMMARY OF THE INVENTION To achieve the above object, the present invention is the distal end of the insertion portion formed by inserting the transmission rod movable axially mantle tube, rocking the movement of the transmission rod the dynamic electrode mounted, the electrode has a surface contact portion where a curved surface to a planar shape, and the line contact portion formed on right and left sides of the surface contact portion, a structure having a contact portion that is formed at the tip it is to its said.

【0008】 [0008]

【作用】電極はトラカールに挿入される軸部材に固定されてはおらず、挿入部の先端に揺動可能に設けられ、この電極の揺動は術者が把持する操作部で行うことができる。 [Working electrodes is fixed to the shaft member inserted into the trocar Orazu swingably provided at the distal end of the insertion portion, the swing of the electrode can be performed in the operation section the surgeon to grip. これによって、処置が行われる部位に応じて、電極を適宜の角度状態に変位させることができ、臓器と臓器の間を剥離する等の操作を行う際に、所望の方向に向けて電極を当接させることができる。 Thereby, depending on the site where the treatment is carried out, electrodes can be displaced at an appropriate angular position, when performing operation such as peeling between the organ and the organ, the electrodes toward the desired direction equivalent it is possible to contact.

【0009】電極は、面接触部と、線接触部及び点接触部とを備えているから、極端に入り組んだり、狭い部分等がなく、比較的形状が安定している部位を切開するには、線接触部を利用する。 [0009] electrodes, and the surface contact portion, because and a line contact portion and the point contact portion, extremely complicated Dari, no narrow portion or the like, to incise the site where relatively shape is stable , to use the line contact part. そして、切断線の方向に応じて適宜電極を傾ける。 Then, inclining the appropriate electrodes in accordance with the direction of the cutting line. これによって、切断すべき部位がどの方向であっても、確実に線接触部を用いて切開を行える。 Thus, regardless of the direction the site to be cut, incise with reliable line contact portion. また、入り組んだ部位を切断したり、血管と血管との間を迂回しながら切断する等というように、電極を微細に動かす必要のある場合には、点接触部を接触させる。 You can also cleave site intricate, etc and so to cut while bypassing between the vessel and the vessel, when it is necessary to move the electrode fine is contacting the point contact portion. この点接触部では電流密度が高くなるために、より深い位置にまで切断できる。 For the current density becomes high at the point contact portion, it can be cut to a deeper position. そして、この操作の間には、出血が発生するおそれがあるが、出血した場合には、その出血個所に面接触部を当接させることによって、凝固を行える。 And, during this operation, there is a risk that bleeding occurs when bleeding, by abutting the surface contact portion to the bleeding point, allows the coagulation. これによって、1本の高周波処置具のみを用いれば良く、トラカールに複数の高周波処置具を交換して挿入する必要がなくなることから、処置を円滑に、しかも迅速に行える。 This may be used only one of the high-frequency treatment instrument, since there is no need to insert and replace a plurality of high-frequency treatment instrument into the trocar, smooth treatment, yet performed quickly.

【0010】電極の操作性をより向上させるには、この電極を揺動させるだけでなく、挿入部を軸回りに回動させることによって、電極を回動できるように構成する。 [0010] In order to further improve the operability of the electrode is not only swinging the electrode, by rotating the insertion portion around an axis, constituting the electrode so that it can rotate.
これによって、電極の回動操作と揺動操作とを複合することによって、電極における面接触部と、線接触部及び点接触部をどのような方向にも確実に、しかも容易に向けることができ、その制御性がさらに向上する。 Thus, by combining the turning operation and the rocking operation of the electrode, and the surface contact portion of the electrode, reliably to any direction line contact portion and the point contact portion, moreover can be easily directed , its controllability is further improved.

【0011】 [0011]

【実施例】以下、図面に基づいて本発明の実施例を説明する。 EXAMPLES Hereinafter, the embodiments of the present invention will be described with reference to the drawings. まず、図1に高周波処置具の全体構成を示す。 First, the overall configuration of a high frequency treatment instrument in Fig. また、図2及び図3には、それぞれ操作部側及び電極側の部分の断面を、さらに図4及び図5に、処置具の先端部分の外観を、図6には電極枢着部の断面を、また図7に電極の外観をそれぞれ示す。 Further, in FIGS. 2 and 3, a cross section of a portion of the respective operating unit side and the electrode side, further 4 and 5, the appearance of the distal end portion of the treatment instrument, the cross section of the electrode pivot point in FIG. 6 and also in FIG. 7 shows the appearance of the electrodes, respectively.

【0012】図中において、1は操作部、2は挿入部、 [0012] In the figure, 1 is an operation unit, 2 an insertion portion,
3は電極である。 3 is an electrode. 操作部1はグリップ本体10と、このグリップ本体10に軸11により枢動自在に連結した作動レバー12とを備えている。 An operation unit 1 grip body 10, and a actuation lever 12 which is connected pivotally by a shaft 11 to the grip body 10. 術者はグリップ本体10 The operator grip body 10
と作動レバー12とを握持することにより操作できるようになっている。 It has to be operated by gripping the operating lever 12 and. グリップ本体10と作動レバー12との間には、一対からなる板ばね13,13が設けられ、 Between the grip body 10 and the actuating lever 12, the leaf springs 13, 13 comprising a pair are provided,
この板ばね13,13の付勢力によって、作動レバー1 By the urging force of the plate spring 13, the operating lever 1
2はグリップ本体10から離間する方向に回動するように付勢されている。 2 is biased to rotate in a direction away from the grip body 10. そして、グリップ本体10にはラチェット部材14が図1の矢印方向に回動可能に連結されており、このラチェット部材14のラチェット歯14a Then, the grip body 10 ratchet member 14 are pivotally connected to the direction of the arrow in FIG. 1, the ratchet teeth 14a of the ratchet member 14
は作動レバー12の端部に係脱可能となっている。 It has become disengageably to the end of the actuating lever 12. 従って、作動レバー12を所望の角度位置とした状態で、ラチェット部材14を作動レバー12の端部に当接させると、この作動レバー12はその角度位置で固定できるようになる。 Accordingly, the operating lever 12 in a state in which the desired angular position and to abut the ratchet member 14 to the end portion of the actuating lever 12, the actuating lever 12 will be able to fixed in its angular position.

【0013】挿入部2は、外套管20内に伝達杆21を軸線方向に移動可能に挿通させてなるものであり、図2 [0013] insertion portion 2 is made by the transmission rod 21 into the mantle tube 20 movably is inserted in the axial direction, FIG. 2
にも示したように、外套管20は操作部1におけるグリップ本体10の上面に固着して設けた保持筒15内に挿通されている。 As also shown in, the mantle tube 20 is inserted into the holding cylinder 15 provided with fixed to an upper surface of the grip body 10 in the operation section 1. 伝達杆21の基端部には押動駒22が連結され、この押動駒22には作動レバー12が軸23で枢支されており、従って作動レバー12を軸11を中心として回動させると、押動駒22は前後方向に移動するものである。 The base end portion of the transmission rod 21 is connected is pushed piece 22, actuating lever 12 is in the pressing piece 22 is pivotally supported by a shaft 23, thus rotating the actuating lever 12 about the axis 11 When, pushing piece 22 is to move in the front-rear direction.

【0014】また、外套管20における保持筒15への挿通部を通過した部位には、電極3を回動させるための回動操作リング24が嵌合固定されている。 Further, a portion having passed through the insertion portion of the holding cylinder 15 in the mantle tube 20, the rotation operation ring 24 for rotating the electrode 3 is fixedly fitted. この回動操作リング24には操作指片24aが設けられており、この操作指片24aを手指等で回動させると、挿入部2の外套管20がこれに追従回動する。 This is the rotation operation ring 24 is provided with operating fingers 24a, it is rotated the operating fingers 24a with a finger or the like, the outer tube 20 of the insertion portion 2 to follow rotation thereto. そして、操作部1のグリップ本体10には止めねじ16が螺挿されており、 Then, the grip body 10 of the operation section 1 has been inserted a set screw 16 is threaded,
この止めねじ16のねじ部分の先端は保持筒15を貫通して、外套管20に接離可能となっている。 The tip of the threaded portion of the set screw 16 extends through the holding cylinder 15, and can contact and separation in the outer tube 20. 従って、止めねじ16を緩めた状態で、回動操作リング24の操作指片24aを回動操作すると、外套管20が追従回動することになり、また止めねじ16を外套管20の外表面に圧接させると、この外套管20は軸線方向にも、回動方向にも固定される。 Accordingly, in a state of loosening the set screw 16, when the operation fingers 24a of the rotation operation ring 24 is rotated operation, will be the mantle tube 20 to follow rotation, also the outer surface of the set screw 16 mantle tube 20 When is pressed against, the mantle tube 20 is also in the axial direction, and is also fixed to the rotating direction.

【0015】挿入部2は所定の長さを有するものであり、電極3は、この挿入部2の先端部分に装着されている。 The insertion portion 2 are those having a predetermined length, the electrode 3 is mounted on the tip portion of the insertion portion 2. 図3乃至図6に示したように、外套管20の先端部分は所定の長さ分だけ半割り部20aとなっており、伝達杆21の先端部はこの半割り部20aの部位にまで延在されている。 As shown in FIGS. 3 to 6, the tip portion of the mantle tube 20 has a predetermined by the length halves 20a, extends to the region of the tip the halves 20a of the transmission rod 21 It has been Zaisa. 伝達杆21の先端は連結筒体25に挿通されており、その先端部分は太径部21aとなっている。 The tip of the transmission rod 21 is inserted through the coupling tube 25, the distal end portion thereof has a large diameter portion 21a. これによって、伝達杆21は連結筒体25に回動自在に連結されている。 Thus, the transmission rod 21 is rotatably connected to the connecting cylinder 25. そして、この連結筒体25は外形が略半円形状となった往復動部材26に固着されている。 Then, the connection cylinder 25 is secured to the reciprocating member 26 which outer shape becomes substantially semi-circular shape. 往復動部材26の先端はほぼ外套管20の先端部と同じ位置にまで延在されており、これら往復動部材26 The tip of the reciprocating member 26 is extended to approximately the same position as the front end portion of the mantle tube 20, these reciprocating members 26
及び外套管20には、先端から所定の位置までスリット26a,20bが形成されている。 And the mantle tube 20 is slit 26a from the tip to a predetermined position, 20b are formed.

【0016】電極3は、電極本体30と連結部31とから構成され、連結部31は厚みが比較的薄い方形の部材からなり、この連結部31には2箇所に軸孔32,33 The electrode 3 is constituted by the electrode body 30 connecting portion 31., the connecting portion 31 is made of a relatively thin rectangular member thickness, the axial hole 32, 33 in two places in the connecting portion 31
が設けられている。 It is provided. 一方、往復動部材26及び外套管2 On the other hand, the reciprocating member 26 and the mantle tube 2
0のスリット26a,20b内に臨む円形の突出部からなる支軸27,28が設けられ、電極3の連結部31がスリット26a,20b内に配置されて、軸孔32,3 0 of the slit 26a, the support shaft 27, 28 comprising a circular protrusion facing the inside 20b are provided, the connecting portion 31 of the electrode 3 is disposed in the slit 26a, in 20b, a shaft hole 32,3
3に支軸27,28が挿嵌されるように組み付けられる。 3 spindle 27, 28 is assembled as inserted into. これによって、伝達杆21が軸線方向に移動すると、電極3は支軸28を中心として、図3の実線位置から仮想線で示した方向に所定角度、例えば90°程度揺動変位できるようになる。 Thereby, the transmission rod 21 moves in the axial direction, around the electrode 3 is the supporting shafts 28, consisting of the solid line position of FIG. 3 a predetermined angle in the direction indicated by the imaginary lines, for example to be 90 ° about swings .

【0017】以上により、作動レバー12を手指等により操作すると、伝達杆21が軸線方向に変位して、電極3が揺動変位することになり、また回動操作リング24 [0017] Thus, when operated by a finger or the like actuating lever 12, with transmission rod 21 is displaced in the axial direction, will be the electrodes 3 is swung, also rotates the operation ring 24
を手指等で回動させ、外套管20を軸回りに回動させると、電極3が回動する。 The is rotated by a finger or the like, rotates the mantle tube 20 about the axis, the electrode 3 is rotated. この外套管20の回動には、電極3が追従するが、これ以外にも連結筒体25及び往復動部材26が回動する。 This rotation of the mantle tube 20, the electrode 3 is to follow, linking cylinder 25 and the reciprocating member 26 is also rotated in addition to this. ただし、伝達杆21は非回動状態に保持される。 However, transmission rod 21 is held in a non-rotation state.

【0018】さらに、電極3の電極本体30は、図7からも明らかなように、平面状態では、略三角形の形状となり、側面側は薄肉となっている。 Furthermore, the electrode body 30 of the electrode 3, as is apparent from FIG. 7, in the planar state, a shape of substantially triangular side surface has a thin. 従って、この電極本体30の一側面は左右に湾曲した広い面積を有し、この部分を体内組織に押し当てると、凝固を行うのに適した面接触部30aとなる。 Accordingly, one aspect of the electrode main body 30 has a large area curved to the left and right, when pressed against this portion into the body tissue, the surface contact portion 30a suitable for performing coagulation. また、左右のエッジ部分は丸みを帯びた肉厚の薄いものであり、この部位は体内組織に当接させて、組織等の切断を行うのに適した線接触部3 Further, the left and right edges are those small thickness of a rounded, this site is brought into contact with the body tissue, the line contact part 3 suitable for performing the cutting of the tissue, such as
0b,30bとなる。 0b, the 30b. さらに、先端部は鈍い状態で尖っており、この先端部を体内組織に当接させると、かなりの深さにまで細い穿孔したり、狭い部位を凝固したりするのに適した点接触部30cを構成している。 Furthermore, the tip is pointed in a dull state, is brought into contact with the tip into the body tissue, or thin perforated to a considerable depth, the contact portion 30c that is suitable for or solidified narrow site constitute a. なお、面接触部30aは湾曲した曲面形状となっているが、平坦面形状とすることもできる。 Although the surface contact portion 30a has a curved curved shape may be a flat surface shape.

【0019】以上の構成を有する高周波処置具には、図1から明らかなように、その押動駒22の基端部に接点部40が突設されており、この接点部40には、高周波電源装置41からのケーブル42のコネクタ43が着脱可能に接続される。 [0019] The high-frequency treatment instrument having the above configuration, as is clear from FIG. 1, a contact portion 40 projecting from the proximal end of the pressing piece 22, to the contact portion 40, a high frequency connector 43 of cable 42 from the power supply unit 41 is detachably connected. また、患者には、平板状の患者側電極44が当接されて、電極3の電極本体30と患者側電極44との間に所定の電位差が生じるようになっている。 Also, patients tabular patient side electrode 44 is abutted, so that the predetermined potential difference is generated between the electrode body 30 and the patient-side electrode 44 of the electrode 3.

【0020】電極本体30以外の部位に電流が漏れないようにするために、この電極本体30以外の部材で、導電性を有する部材の外部に露出されている部位及び電極3の連結部31から電極本体30に入り込んだ部位までは、電気絶縁性を有するフッ素樹脂等からなる絶縁コーティングが施される。 [0020] In order to prevent current leakage in the portion other than the electrode body 30, a member other than the electrode body 30, the connecting portion 31 of the site and the electrode 3 is exposed to the outside of an electrically conductive member to the site that has entered the electrode body 30, an insulating coating is applied made of a fluorine resin or the like having an electrically insulating property. 接点部40から電極本体30までの電源供給路を確保するために、少なくとも押動駒2 To ensure the power supply path from the contact portion 40 to the electrode body 30, at least the pushing piece 2
2,伝達杆21,連結筒体25及び往復動部材26は、 2, transmission rod 21, connecting cylinder 25 and the reciprocating member 26,
電極3と同様導電性を有する金属で形成される。 It is formed of a metal having a similar conductivity and electrode 3. そして、接点部40は、押動駒22内に挿入されており、また伝達杆21は押動駒22内に挿入されており、この挿入されている部分は押動駒22側も伝達杆21側も絶縁コーティングを施されていない。 The contact portion 40 is inserted into the pressing piece 22, also transmission rod 21 is inserted into the pressing piece 22, the portion being the insertion also pressing piece 22 side transmission rod 21 side is also not subjected to the insulation coating. また、伝達杆21の先端部は連結筒体25に挿入され、連結部材26は往復動部材26と当接しているが、これらの挿入部及び当接部は絶縁コーティングを行わない。 The tip portion of the transmission rod 21 is inserted into the coupling tube 25, the connecting member 26 is in contact with the reciprocating member 26, but these insertion portion and the contact portion does not perform the insulation coating. ただし、押動駒22, However, the pressing piece 22,
伝達杆21,連結筒体25及び往復動部材26のそれら以外の部位は所定の厚みの絶縁コーティングが施される。 Transmission lever 21, a site other than their connection cylinder 25 and the reciprocating member 26 is an insulating coating of predetermined thickness is performed. また、往復動部材26と電極3との間は、図6から明らかなように、往復動部材26に設けた支軸27には絶縁コーティングを行わず、また電極3の連結部31に穿設した軸孔32には絶縁コーティングしないようにする。 Further, between the reciprocating member 26 and the electrode 3, as is apparent from FIG. 6, without insulation coating on a support shaft 27 provided on the reciprocating member 26, also formed in the connecting portion 31 of the electrode 3 It is to prevent the insulating coating on the shaft hole 32. そして、これらの部位以外は、図中に符号Cで示したように絶縁コーティングが施される。 Then, except these sites, insulative coating as indicated by reference numeral C is performed in FIG.

【0021】このように構成することによって、接点部41から電極3までの電源供給路が確保される。 [0021] By such a structure, the power supply path from the contact portion 41 to the electrode 3 is secured. ここで、より安全性を向上させるには、少なくとも電極3の電極本体30の部分から外套管20までの間の部位には絶縁カバーで被装させるようにする。 Here, in order to improve the safety is in the region between the portion of the electrode body 30 of at least the electrode 3 to the outer tube 20 so as to covered state with the insulating cover. また、外套管20 In addition, the outer tube 20
及び押動駒22を電気絶縁性のある樹脂で形成し、内部に挿通される伝達杆21を金属で形成し、この伝達杆2 And pressing piece 22 is formed with an electrically insulating resin, the transmission rod 21 to be inserted therein is formed of a metal, the transmission rod 2
1を押動駒22を貫通させるようになし、伝達杆21の押動駒22からの突出端部を接点部として機能させて、 None 1 so as to penetrate the pressing piece 22, to function as a contact portion projecting end of the pressing piece 22 of the transmission rod 21,
押動駒22と外套管20との間及び外套管20と電極3 During and mantle tube of the pressing piece 22 and trocar 20 20 and the electrode 3
の連結部31との間にそれぞれ絶縁カバーを被装させるようにしても良い。 Each may be the insulating cover so as to covered state between the coupling portion 31 of the.

【0022】電極本体30以外の部位に電流が漏れないようにするために、さらに、図8に示したように構成することもできる。 [0022] In order to prevent current leakage in the portion other than the electrode body 30, it may also be configured as shown in FIG. 即ち、外套管20を硬質の樹脂パイプで形成するか、または金属で形成する場合には、その内外面及び両端部等、外部に露出している部位全体を完全に電気絶縁コーティングを行い、この外套管20における回動操作リング24への連設部を含む部位から操作部1全体を覆う絶縁保護カバー50を装着し、また外套管20と電極3の電極本体30の基端側の部位との間にも絶縁保護チューブ51を装着するように構成することもできる。 That is, when forming the mantle tube 20 or formed of a resin pipe rigid, or metal, performs perfectly electrically insulating coating inner and outer surfaces, and both end portions or the like, the entire site exposed to the outside, this the operation unit 1 an insulating protective cover 50 covers the entire from site comprising connecting portion to rotate the operation ring 24 in the mantle tube 20 is mounted, also a part of the base end side of the electrode body 30 of the mantle tube 20 and the electrode 3 also it may be configured to mount the insulating protection tube 51 between.

【0023】ここで、絶縁保護チューブ51は、図9に示したように、外套管20及び電極本体30にそれぞれ円環状の凹溝52,52を形成しておき、絶縁保護チューブ51の両端にこれら凹溝52に嵌合するリング部5 [0023] Here, the insulating protective tube 51, as shown in FIG. 9, respectively cannula 20 and the electrode body 30 previously formed an annular groove 52, on both ends of the insulating protective tube 51 ring portion 5 fitted to these grooves 52
1a,51aを形成することによって、この絶縁保護チューブ51は交換可能で、しかも処置具から逸脱したり、ずれたりしない状態に装着できる。 1a, by forming a 51a, the insulating protective tube 51 is replaceable, moreover can be mounted or departing from the treatment instrument, in a state that does not or displaced. 従って、絶縁保護チューブ51は弾性のある部材で形成され、また電極3における電極本体30の基端側の円形の部位をある程度長くして、この部位に凹溝52を形成する。 Therefore, the insulating protective tube 51 is formed of a member having elasticity, also a circular portion of the base end side of the electrode body 30 in the electrode 3 and long to some extent, to form a concave groove 52 at this site. これに対して、操作部1側に装着される絶縁保護カバー50は、 In contrast, the insulating protective cover 50 mounted on the operating unit 1 side,
その外から操作部1のグリップ本体10及び作動レバー12を把持し、また電極3を揺動させるための作動レバー12の操作を行い、さらに止めねじ16の螺出入及び回動操作リング24の操作による外套管20の回動操作を行うために、透明性及び柔軟性が要求される。 Holding the grip body 10 and the actuating lever 12 of the operation unit 1 from the outside, also do the operating lever 12 for pivoting the electrodes 3, further threading and out and operation of the swing operation ring 24 of the setscrew 16 to perform the rotational operation of the mantle tube 20 due to, transparency and flexibility are required. 勿論、 Of course,
破損等のおそれがないようにするために、十分な強度を持つものから選択される。 To ensure that there is no danger such as breakage, it is selected from those having a sufficient strength.

【0024】本実施例は以上のように構成されるものであって、この高周波処置具はトラカール等のガイド部材を介して体腔内に挿入されて、臓器や組織等の切開及び出血部を止血するための凝固等の処置を施すことができる。 The present examples are intended to be constituted as described above, the high-frequency treatment instrument is inserted into the body cavity through the guide member such trocar, hemostasis incision and bleeding of organs and tissues, etc. treatment such as coagulation to can be subjected.

【0025】まず、切開を行う際には、電極3における電極本体30の線接触部30bを体内組織等に当接させる。 Firstly, when performing incision to abut the line contact portion 30b of the electrode main body 30 in the electrode 3 into the body tissue or the like. この線接触部30bの接触により、高周波によるジュール熱の作用による切断が行われる。 By contact of the line contact portion 30b, the cutting by the action of Joule heat due to the high frequency is performed. ここで、切断方向は必ずしも挿入部2の軸線方向と一致するとは限らない。 Here, the cutting direction is not necessarily coincident with the axial direction of the insertion portion 2. そこで、操作部1におけるラチェット部材14の作動レバー12への係合を解除して、作動レバー12を板ばね13に抗する方向に回動させる。 Therefore, to release the engagement of the actuating lever 12 of the ratchet member 14 in the operation unit 1 to rotate the actuating lever 12 in a direction against the leaf spring 13. これによって、作動レバー12に連結されている押動駒22が軸線方向に移動することになり、この押動駒22に連結されている伝達杆21が外套管20内を移動して、その先端に連結されている連結筒体25及び往復動部材26も同方向に移動する。 This makes that the pressing piece 22 which is connected to the actuating lever 12 is moved in the axial direction, transfer rod 21 which is connected to the pressing piece 22 is moved through the mantle tube 20, the distal end connecting cylinder 25 and the reciprocating member 26 is connected also moves in the same direction. 押動部材26は支軸27を介して電極3の連結部31に連結されているから、電極3は外套管20の支軸28を中心として揺動することになり、電極本体3 Since the pressing member 26 is connected to the connecting portion 31 of the electrode 3 via a support shaft 27, the electrode 3 is made to swing about the support shaft 28 of the mantle tube 20, the electrode body 3
0の線接触部30bの方向を変えることができる。 It is possible to change the direction of the line contact portion 30b of 0. そして、電極3を所望の方向に向けた状態で、ラチェット部材14のラチェット歯14aを作動レバー12に係合させれば、その状態に固定できる。 Then, an electrode 3 in a state in which in a desired direction, if engaged with the ratchet teeth 14a of the ratchet member 14 to the actuating lever 12, can be fixed in that state.

【0026】また、止めねじ16を緩めると、外套管2 [0026] In addition, loosening the set screw 16, the outer tube 2
0の保持筒15への固定が解除されることになり、回動操作リング24の操作指片24aを手指で押動することによって、外套管20を回動させることができる。 Will be fixed to the holding cylinder 15 of 0 is released by pushing the operating fingers 24a of the rotation operation ring 24 with a finger, it is possible to rotate the mantle tube 20. 外套管20の先端部には電極3が連結されており、この電極3はその連結部31が往復動部材26に、また往復動部材26には連結筒体25が連結されているが、この連結筒体25は伝達杆21に対して相対回動可能となっているから、外套管20の回動により、電極3及び往復動部材26及び連結筒体25が回動し、伝達杆21は非回動状態に保持される。 The distal end portion of the mantle tube 20 and electrode 3 is connected, the electrode 3 on the connecting part 31 reciprocating member 26, Although the reciprocating member 26 is connected a connecting cylinder 25, the since connecting cylinder 25 is adapted to be relatively rotated with respect to transmission lever 21, by the rotation of the mantle tube 20, the electrode 3 and the reciprocating member 26 and the connecting cylinder 25 is rotated, transmission lever 21 is It is held in a non-rotating state. そして、外套管20を所望角度だけ回動させた後に、止めねじ16を締め付けるようにすれば、外套管20はその回動状態に固定される。 Then, after the mantle tube 20 is desired angle by turning, if to tighten the set screw 16, the mantle tube 20 is fixed to the rotation state.

【0027】この結果、外套管20を回動させて、電極3を所望の回動状態となし、作動レバー12の操作により電極3を揺動させるように操作すれば、その電極本体30における線接触部30bを任意の方向に向けることができる。 [0027] As a result, the mantle tube 20 is rotated, the electrode 3 desired rotation state and without, if operated to swing the electrodes 3 by the operation of the operating lever 12, the line in the electrode body 30 contact portion 30b can be directed in any direction. 従って、臓器や組織における切断部分がどのような方向であっても、線接触部30bをそれに応じた方向に確実に向けることができる。 Thus, whatever the direction of the cutting portion in the organs and tissues, the line contact portion 30b can be oriented reliably in a direction corresponding thereto.

【0028】また、切開等の処置を施す間には、出血を生じることがある。 Further, between performing a treatment of incision or the like, which may cause bleeding. この場合には、電極本体30の面接触30aを出血部に当接させることによって、この出血部分を凝固させることができる。 In this case, by abutting the surface contact 30a of the electrode body 30 to the bleeding part, it is possible to coagulate the bleeding portion. 勿論、この場合においても、電極3を回動させたり、また揺動させたりすることによって、面接触部30aを確実に出血部に面接触させることができる。 Of course, in this case, or to rotate the electrodes 3, also by or swung, it is possible to surface contact with the reliably bleeding part surface contact portion 30a. ここで、面接触部30aは広い面で接触することから、線接触部30bより電流密度が低くなり、発生するジュール熱も低いから、凝固を行うのに都合が良い。 Here, since the surface contact portion 30a is in contact with a wide surface, the line contact portion 30b current density is lower than, because the Joule heat is low to occur, convenient to perform coagulation.

【0029】さらに、入り組んだ部分の切開を行ったり、血管と血管との間を迂回させる等、狭い部位を切断する等の場合には、電極本体30の点接触部30cを用いる。 Furthermore, or perform incision intricate parts, such as diverting between blood vessels and blood vessels, in the case of such cutting the narrow sites, using point contact portion 30c of the electrode body 30. ここで、点接触部30cは微小な部位に電流密度が集中するから、狭い部位においても、ある程度の深さまで切断が可能となる。 Here, because the point contact portion 30c current density is concentrated on small parts, even in a narrow region, it is possible to cut up to a certain depth. また、出血個所が小さい場合には、この点接触部30cを僅かに接触させるようにすれば、凝固個所を最小限にして止血を行える。 Also, when bleeding points is small, if the point contact portion 30c so as to slightly contact, perform hemostasis with minimal solidification point. 勿論、この点接触部30cを確実に接触部位に向けるには、電極3 Of course, it directs the point contact portion 30c in firm contact sites, the electrode 3
を回動させたり、また揺動させたりする。 Or rotates the, also or swung.

【0030】 [0030]

【発明の効果】以上説明したように、本発明は高周波処置具における電極に面接触部,線接触部及び点接触部を持たせるようになし、かつこの電極を挿入部に揺動可能に連結する構成としたので、単一の高周波処置具を用いて、切開だけでなく、凝固も行うことができ、しかも切開を行うべき部位がどのようになっていても、またどの方向であっても、容易にかつ確実に所定の方向に切開を行うことができる等の効果を奏する。 As described in the foregoing, the present invention is surface contact portion to the electrodes of the high-frequency treatment instrument, without so as to have a line contact portion and the point contact portion, and swingably connected to the electrode in the insertion portion configuration and the so that, by using a single high-frequency treatment instrument, not incising, coagulation can also be carried out, moreover even if the site to perform an incision becomes how, also be any direction , the effect of such can be carried out easily and reliably incised in a predetermined direction.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の一実施例を示す高周波処置具の全体構成図である。 1 is an overall configuration diagram of a high-frequency treatment instrument showing an embodiment of the present invention.

【図2】高周波処置具の操作部側の要部断面図である。 2 is a fragmentary cross-sectional view of the operation unit side of the high-frequency treatment instrument.

【図3】高周波処置具の電極側の部分の断面図である。 3 is a cross-sectional view of an electrode side portion of the high-frequency treatment instrument.

【図4】高周波処置具の先端部分の底面図である。 4 is a bottom view of a distal portion of the high-frequency treatment instrument.

【図5】高周波処置具の先端部分の平面図である。 5 is a plan view of a distal portion of the high-frequency treatment instrument.

【図6】図3のX−X断面図である。 6 is a sectional view taken along line X-X of FIG.

【図7】電極の外観図である。 7 is an external view of an electrode.

【図8】高周波処置具において、電極以外に電流が漏れないようにするための構成を示す構成説明図である。 In [8] the high frequency treatment instrument is a block diagram showing a configuration for preventing current leakage in addition to the electrode.

【図9】図8の要部拡大図である。 An enlarged view of a main portion of FIG. 9] FIG. 8.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 操作部 2 挿入部 3 電極 10 グリップ本体 12 作動レバー 14 ラチェット部材 15 保持筒 16 止めねじ 20 外套管 21 伝達杆 22 押動駒 24 回動操作リング 25 連結筒体 26 往復動部材 27,28 支軸 30 電極本体 30a 面接触部 30b 線接触部 30c 点接触部 31 連結部 40 接点部 41 高周波電源装置 50 絶縁保護カバー 51 絶縁保護チューブ 1 operating portion 2 insertion portion 3 electrode 10 grip body 12 actuating lever 14 the ratchet member 15 holding cylinder 16 set screw 20 mantle tube 21 transfer lever 22 push piece 24 rotates the operation ring 25 connected cylinder 26 reciprocating member 27 supported axis 30 electrode body 30a faces the contact portion 30b line contact portion 30c point contact portion 31 connecting portion 40 contact portion 41 high-frequency power supply apparatus 50 insulating protective cover 51 insulating protective tube

Claims (4)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 外套管内に軸線方向に移動可能な伝達杆を挿通してなる挿入部の先端に、伝達杆の移動により揺動する電極を装着し、この電極は、曲面乃至平面形状となった面接触部と、この面接触部の左右両側に形成した線接触部と、先端に形成した点接触部を有する構成としたことを特徴とする高周波処置具。 The tip of claim 1 insertion portion into the mantle tube formed by inserting the transmission rod movable in the axial direction, the electrodes for oscillating mounted by the movement of the transmission lever, becomes the electrode includes a curved or planar shape and a surface contact portion, the high-frequency treatment instrument, wherein the line contact portion formed on right and left sides of the surface contact portion, that it has a structure having a contact portion that is formed at the tip.
  2. 【請求項2】 前記挿入部の外套管を軸回り方向に回動可能となし、この外套管の回動に追従して電極が回動する構成としたことを特徴とする請求項1記載の高周波処置具。 Wherein none and pivotable mantle tube of the insertion portion around the axis, of claim 1, wherein the electrode by following the rotation of the mantle tube is characterized by being configured to rotate high-frequency treatment instrument.
  3. 【請求項3】 前記挿入部の伝達杆を前記電極への電源供給路となし、この伝達杆に押動駒を連設して、この押動駒に高周波電源装置のコネクタを連結する接点部を設けると共に、この電源供給路の外周及びそれ以外の導電性部材の外表面に電気絶縁性を有する絶縁コーティングを施す構成としたことを特徴とする請求項1または2記載の高周波処置具。 3. A power supply path and without the transmission rod of the insertion portion to the electrode, and continuously provided a pushing piece to the transmission lever, the contact portion connecting the connector of the high-frequency power supply device to the push piece the provided with high-frequency treatment instrument according to claim 1, wherein it is configured such that applying an insulating coating having an electrical insulating property on the outer surface of the outer periphery and the other conductive members of the power supply path.
  4. 【請求項4】 前記挿入部の基端部に操作部を連設し、 4. A continuously provided an operation portion on the proximal end of the insertion section,
    この操作部を電気絶縁性を有する絶縁保護カバーで覆うようになし、また前記外套管と電極との間に電気絶縁性を有する絶縁保護チューブを装着する構成としたことを特徴とする請求項1または2記載の高周波処置具。 Claim 1 The operation unit None to cover with an insulating protective cover having electrical insulation properties, also characterized in that a structure for mounting the insulating protective tube having an electrically insulating between the mantle tube and electrode or high-frequency treatment instrument according.
JP7176868A 1995-06-21 1995-06-21 High-frequency medical treatment instrument Pending JPH09538A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7176868A JPH09538A (en) 1995-06-21 1995-06-21 High-frequency medical treatment instrument

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Application Number Priority Date Filing Date Title
JP7176868A JPH09538A (en) 1995-06-21 1995-06-21 High-frequency medical treatment instrument

Publications (1)

Publication Number Publication Date
JPH09538A true JPH09538A (en) 1997-01-07

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US10258360B2 (en) 2014-09-25 2019-04-16 Covidien Lp Surgical instruments
US10206736B2 (en) 2015-03-13 2019-02-19 Covidien Lp Surgical forceps with scalpel functionality
US9848935B2 (en) 2015-05-27 2017-12-26 Covidien Lp Surgical instruments including components and features facilitating the assembly and manufacturing thereof
US9956022B2 (en) 2015-05-27 2018-05-01 Covidien Lp Surgical forceps and methods of manufacturing the same
US9974602B2 (en) 2015-05-27 2018-05-22 Covidien Lp Surgical instruments and devices and methods facilitating the manufacture of the same
US10226269B2 (en) 2015-05-27 2019-03-12 Covidien Lp Surgical forceps
US10213221B2 (en) 2015-10-28 2019-02-26 Covidien Lp Surgical instruments including cam surfaces
US10154877B2 (en) 2015-11-04 2018-12-18 Covidien Lp Endoscopic surgical instrument
US10172672B2 (en) 2016-01-11 2019-01-08 Covidien Lp Jaw force control for electrosurgical forceps
USD819815S1 (en) 2016-03-09 2018-06-05 Covidien Lp L-shaped blade trigger for an electrosurgical instrument
USD828554S1 (en) 2016-03-09 2018-09-11 Covidien Lp Contoured blade trigger for an electrosurgical instrument
USD854149S1 (en) 2017-06-08 2019-07-16 Covidien Lp End effector for open vessel sealer
USD854684S1 (en) 2017-06-08 2019-07-23 Covidien Lp Open vessel sealer with mechanical cutter
USD859658S1 (en) 2017-06-16 2019-09-10 Covidien Lp Vessel sealer for tonsillectomy

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