JPH1024051A - Coagulation forceps with separating function - Google Patents

Coagulation forceps with separating function

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Publication number
JPH1024051A
JPH1024051A JP25020796A JP25020796A JPH1024051A JP H1024051 A JPH1024051 A JP H1024051A JP 25020796 A JP25020796 A JP 25020796A JP 25020796 A JP25020796 A JP 25020796A JP H1024051 A JPH1024051 A JP H1024051A
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Prior art keywords
part
separating
means
gripping
coagulating
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JP25020796A
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Japanese (ja)
Inventor
Yasuhiko Kikuchi
Shinichi Nishigaki
康彦 菊地
晋一 西垣
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Olympus Optical Co Ltd
オリンパス光学工業株式会社
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Abstract

PROBLEM TO BE SOLVED: To enhance controllability by providing a coagulating part, which comprises a pair of gripping means which grips a tissue and can carry currents, and a separating means for separating the tissue gripped and coagulated by the coagulating part, and enabling either a coagulating part opening/closing means or a separating means to be selectively operated. SOLUTION: A surgical forceps 1 includes a hollow insertion pipe 3 forming an inserted part 2 that is inserted into a selom and an at-hand control part 4 connected to the first end of the insertion pipe 3. The end portion of the insertion pipe 3 has an end gripping part 5 for gripping and coagulating a tissue inside a celom for hemostasis, and a separation means for separating the tissue gripped is passed through the insertion pipe 3. The at-hand control part 4 is provided with a gripping mechanism part 11, a feeding connection 12, and a separating part 13, a gripping operation and a separating operation are selectively performed by means of an operation selecting mechanism part 14, and a handle 11 made of a U-shaped plate spring member is provided between the support member 16 of the at-hand control part 4 and an opening/ closing slider 91.

Description

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

【0001】 [0001]

【発明の属する技術分野】本発明は内視鏡の観察下で体腔内の部位を外科手術する際に使用される切離機能付凝固鉗子に関する。 The present invention relates to relates to with the separating functional coagulation forceps used when surgical site in a body cavity under observation of the endoscope.

【0002】 [0002]

【従来の技術】この種の切離機能付凝固鉗子は、USP BACKGROUND OF THE INVENTION coagulation forceps with this kind of disconnection functions, USP
第2,031,682号明細書やUSP第4,655, No. 2,031,682 Pat and USP No. 4,655,
216号明細書において知られるように、開閉と通電可能な電極を有した高周波凝固部と、該高周波凝固部の領域内を移動あるいは旋回する切離手段を備えて成るものである。 As known in 216 Pat are those consisting includes a high-frequency coagulation unit having an energizable and closing the electrodes, a separating means for moving or turning the region of the high-frequency coagulation section.

【0003】これらの凝固鉗子では通常、切離しようとする組織を、高周波凝固部の電極で把持しながら通電して凝固した後、その組織を把持した状態で切離手段を作動させることにより、組織の凝固止血された部位を電気的あるいは機械的に切離する。 [0003] Typically in these coagulation forceps, the tissue of the disconnecting, after solidified by energizing while holding the electrode of the high-frequency coagulation unit, by actuating the separating means while gripping the tissue, tissue electrically or mechanically Kirihanasuru the coagulation hemostasis has been site. このような処理を行うことで、所望の組織部分を出血させることなく、切離することが可能ならしめるものである。 By performing such processing, without bleeding the desired tissue portions, in which makes it possible for dissecting.

【0004】 [0004]

【発明が解決しようとする課題】 [Problems that the Invention is to Solve

(従来技術の欠点)従来の凝固鉗子では組織を把持する凝固電極を兼ねた把持部材による操作と、その把持した組織を切離する操作は手元側において個別的に設けた各操作手段によって互いに関連なく独立して作動するように構成されている。 Related to each other by the operation means provided individually and manipulation by gripping member which also serves as a coagulation electrode grasping tissue, operation for dissecting the grasped tissue in hand side in the (prior disadvantages of the prior) conventional coagulation forceps It is configured to operate independently without.

【0005】このため、例えば、術者が組織を凝固止血させる前に、不用意に切離手段を作動させると、組織を切離して出血させてしまう可能性があり、術者は組織を把持凝固する間、切離手段を不用意に作動させないように気を使って作業を行わなければならず、必ずしも操作性がよいものではなかった。 [0005] Thus, for example, before the surgeon to coagulate hemostasis tissue, when inadvertently actuate the separating means, there is a possibility that bled disconnect the tissue, the surgeon grasping coagulate tissue during the must perform work with care so as not to inadvertently actuate separating means was not necessarily good operability.

【0006】(発明の目的)本発明は前述した課題に着目してなされたものであり、その目的とするところは組織の把持、凝固止血中において不用意に切離手段を動作させて出血させるようなことが回避でき、組織の把持、 [0006] (object of the invention) The present invention has been made in view of the problems described above, the gripping of the tissue it is an object to bleeding inadvertently operating the separating means during solidification hemostasis it can be avoided, such as, gripping of the organization,
凝固止血、組織の切離の各動作を手順通り、確実に操作することができる操作性のよい切離機能付凝固鉗子を提供することにある。 Coagulation hemostasis, following the procedures of each operation of the severing of the tissue, is to provide a reliably operating coagulation forceps with good operability separating function can be.

【0007】 [0007]

【課題を解決するための手段】本発明は、体腔内に挿入される挿入部を有した操作部本体と、前記挿入部の先端付近に設けられた組織を把持する通電可能な一対の把持手段から成る凝固部と、前記凝固部で把持、凝固した組織を切離する切離手段と、前記操作部本体側に設けられ前記凝固部の把持手段を開閉操作する凝固部開閉操作手段と、前記操作部本体側に設けられ前記切離手段を操作する切離操作手段と、凝固部開閉操作手段と切離操作手段のいずれか一方を選択してその操作手段の動作だけを行うことが許容される操作選択手段とを具備したことを特徴とする切離機能付凝固鉗子である。 Means for Solving the Problems The present invention includes an operation portion main body having an insertion portion to be inserted into a body cavity, energizable pair of gripping means for gripping tissue provided near the distal end of the insertion portion a coagulation unit consisting, gripped by the solidified portion, and a separating means for dissecting the coagulated tissue, the solidified portion opening and closing means for opening and closing the gripping means of the solidified portion provided in the operation portion main body, wherein and separating operation means for operating said separating means provided in the operation portion main body, to perform the operation of only the operation unit is allowed to select one of the solidified portion opening and closing means and separating operation means a coagulation forceps with the separating function, characterized by comprising an operation selection unit that.

【0008】 [0008]

【発明の実施の形態】 DETAILED DESCRIPTION OF THE INVENTION

(構成)図1は本発明の第1の実施の形態に係る外科用鉗子1の全体の外観を示す。 (Configuration) FIG. 1 shows the overall appearance of the surgical forceps 1 according to a first embodiment of the present invention. この外科用鉗子1は体腔内に挿入されるべき挿入部2を形成する中空の挿入パイプ3と、この挿入パイプ3の基端側に連結される手元操作部4に大別される。 The forceps 1 is a hollow insertion pipe 3 to form the insertion portion 2 to be inserted into the body cavity, it is broadly divided into the operation portion 4 connected to a proximal end side of the insertion pipe 3. 挿入パイプ3の先端部分には体腔内で組織を把持、凝固止血するための先端把持部5が設けられ、その挿入パイプ3には把持した組織を切離する切離手段6が挿通されている。 Grasp tissue at the distal end portion in the body cavity of the insertion pipe 3 is provided with a distal grip portion 5 for coagulation hemostasis, separating means 6 is inserted for dissecting the grasped tissue in the insertion pipe 3 . 先端把持部5と切離手段6 Distal clasps 5 and separating means 6
は手元操作部4に設けた後述する如くの複数の機構によって操作され、また同じく手元操作部4に設けられる給電接続部を通じて必要な給電が行われるようになっている。 Is adapted to be operated by a plurality of mechanisms as described later provided in the operation portion 4, also the required power is supplied again through the feed connection portion provided on the hand operation section 4.

【0009】ところで、外科用鉗子1は次のような部組(ユニット)を単位として分解とそれらの再組立てがユーザサイドで容易に行うことが可能な構造のものである。 By the way, forceps 1 is a re-exploded and their following component assembly (the unit) as the unit of readily be capable of performing structure on the user side. つまり、図2で示されるように、挿入パイプ3に連結した状態の手元操作部4と、前記切離手段6と、前記先端把持部5を含む把持部本体8と、前記先端把持部5 That is, as shown in Figure 2, the operation portion 4 in the connected state the insertion pipe 3, and the separating means 6, the gripper body 8 including the distal clasps 5, wherein the distal clasps 5
を開閉操作するための中空の管状部材を有した開閉操作体9の4つの部組に分解することが可能であるとともに、分解された各部組を再び図1に示すような組付け状態に直ちに組み立てることが可能な構成になっている。 Together can be decomposed into four component assembly handling members 9 having a hollow tubular member for opening and closing the immediately to such assembled state as shown in disassembled various parts set again Figure 1 It has become configured to be capable assemble.

【0010】図3(a)は、先端把持部5を開閉操作するための開閉操作体9を示し、図3(b)は切離手段6 [0010] 3 (a) shows the handling members 9 for opening and closing the distal clasps 5, FIG. 3 (b) separating means 6
を示している。 The shows. また、図4乃至図14は先端把持部5を含む把持部本体8を示している。 Further, FIGS. 4 to 14 show the gripper body 8 including a tip gripper 5. 前記切離手段6は前記把持部本体8の内腔内にその軸方向に沿って挿入される。 It said separating means 6 are inserted along the axial direction within the lumen of the gripper body 8. 把持部本体8の外周には開閉操作体9が被嵌される。 The outer periphery of the gripper body 8 handling members 9 are fitted on. この組付け状態で切離手段6と把持部本体8と開閉操作体9が挿入パイプ3から挿入されて手元操作部4におけるそれぞれの操作手段に組付け装着されるようになっている。 Handling members 9 and separating means 6 and the holding body 8 is inserted from the insertion pipe 3 is adapted to be mounted assembled to each operation means in the operation portion 4 in the assembled state.

【0011】前記手元操作部4には把持操作機構部11 [0011] The gripping operation mechanism section 11 in the operation portion 4
と給電接続部12と切離操作部13の各操作手段が設けられ、さらに操作選択機構部14が設けられている。 Each operating means is provided in the feed connection 12 and the separating operation unit 13, further operation selection mechanism section 14 is provided with. 把持操作機構部11と給電接続部12及び切離操作部13 Feed connection and the gripping operation mechanism unit 11 12 and the separating operation unit 13
は手元操作部4の中心軸に沿って前記挿入パイプ3と同軸的に1列に並べて配置され、一方、操作選択機構部1 Is located the inserted pipe 3 coaxial with side by side in a row along the central axis of the operation portion 4, whereas, the operation selection mechanism 1
4は手元操作部4の中心軸の下方へ位置し他の機構部に隣接する状態で配置されている。 4 is arranged in a state adjacent to the other mechanism located below the central axis of the operation portion 4.

【0012】次に、これらの各機構部分を具体的に説明する。 [0012] Next, specifically described respective mechanical portions. 図2で示すように前記挿入パイプ3の後端には操作部本体15の1つの部材としての筒状部材からなる第1支持部材16が固定的に取着されており、この第1支持部材16には固定的に設置される第2支持部材17が連結されている。 The insert at the rear end of the pipe 3 is first support member 16 made of a cylindrical member as a single member of the operation section main body 15 is fixedly attached, the first support member as shown in Figure 2 the second support member 17 which is fixedly installed is connected to 16. 第2支持部材17は手元操作部4の中心軸から下方へ偏位して手元操作部4の中心軸と平行な中間部分17aとその両端に形成された屈曲部17b, The second support member 17 is bent portion 17b formed at both ends of the central axis parallel to the intermediate portion 17a of the operation portion 4 and offset downwards from the center axis of the operation portion 4,
17cとから成り、鉗子1の側面から見てその全体が略コの字型の形状となっている。 It consists of a 17c, in its entirety as viewed from the side of the forceps 1 is in the shape of the shape of substantially U. 第2支持部材17の一方の屈曲部17bは前記第1支持部材16に取着固定され、他方の屈曲部17cは給電接続部12の部材を回転自在に保持している。 One of the bent portion 17b of the second supporting member 17 is attached fixed to the first support member 16, the other bent portion 17c is held rotatably a member feed connection 12. 第2支持部材17は給電接続部1 The second support member 17 is feed connection 1
2を第1支持部材16に対して一定の間隔をもって鉗子1の軸方向には位置決めするとともに、その軸上で回転可能に保持している。 Thereby positioning the axial direction of the forceps 1 with a constant interval 2 with respect to the first support member 16 and rotatably held on its axis.

【0013】次に、図4ないし図14を参照して把持部本体8の構成を説明する。 [0013] Next, with reference to FIGS 14 illustrating the configuration of the gripper body 8. すなわち、この把持部本体8 That is, the grasping portion main body 8
は硬性な材料によって形成された中空のロッド部40を有しており、このロッド部40の先端側部分には2本の線状の弾性部材41によってそれぞれ保持された2つの把持部材42a,42bを設けて前記先端把持部5を構成している。 Has a hollow rod portion 40 formed by a rigid material, two gripping members 42a, which are respectively held by two linear elastic members 41 in the distal portion of the rod portion 40, 42b the provided constitutes the distal clasps 5. 弾性部材41は2つの把持部材42a,4 The elastic member 41 is two gripping members 42a, 4
2bを拡開する向きへ弾性的に付勢している。 It is resiliently biased and 2b to the expansion to the orientation. さらに、 further,
把持部本体8にはそのロッド部40の先端側部分に2つの把持部材42a,42bの把持面43と平行な向きに左右それぞれに突出する突起44aを有するナイフガイド44を設けられている。 The gripper body 8 is provided with a knife guide 44 having a projection 44a projecting to the left and right respectively to the two gripping members 42a, 42b gripping surface 43 parallel to the orientation of the distal portion of the rod portion 40.

【0014】また、ロッド部40の手元側端にはそれぞれ円管状の導電性部材からなる2つの電気接続部45, Further, the two electrical connections 45 made of a conductive member of each of the proximal end of the rod 40 circular pipe,
46が間隔をおいて備えられている。 46 are provided at intervals. このとき、2つの電気接続部45,46のうち少なくとも1つのものの外周には給電接続部7の後述する固定ねじ127に係合する切欠き平坦部48が形成されている。 In this case, two notches flat portion 48 on the outer periphery of at least one thing to engage the fixing screw 127 to be described later of the feed connection 7 of the electrical connections 45 and 46 are formed. この実施形態では前方に位置する1つの電気接続部45の周面に切欠き平坦部48を形成してある。 In this embodiment is formed with cutout flats 48 on the peripheral surface of one electrical connection 45 located in front.

【0015】図5で示すように、2つの把持部材42 [0015] As shown in Figure 5, the two gripping members 42
a,42bをそれぞれ支持する弾性部材41はそれぞれ導電性部材49に絶縁被覆50を施してなるものである。 a, the elastic member supports 42b, respectively 41 are those in the conductive members 49 respectively by applying an insulating coating 50. この弾性部材41に保持される2つの把持部材42 The two being held in the elastic member 41 gripping member 42
a,42bは例えばポリエーテルエーテルケトン(PE a, 42b, for example polyetheretherketone (PE
EK)等の電気的絶縁性を有する樹脂から成り、これは図6及び図7で示すように先端側部分を残して前記切離手段6の先端切離部分が挿入されるスリット51を形成することにより平面から見て図6で示すように略U字状に形成されている。 Made of a resin having an electrical insulation EK) such, which form a slit 51 the tip separating portion of the separating means 6 are inserted, leaving the distal portion as shown in FIGS. 6 and 7 It is formed in a substantially U-shape as shown in Figure 6 as viewed from the plane by. また、スリット51の両サイドの部分にはそのスリット51の途中の後端側部分からスリット51の最先端位置よりも前方に達する位置まで軸方向に沿って平行に配置される導電性材質の板状の凝固電極52がそれぞれ埋設されている。 The plate of electrically conductive material are arranged parallel along the axial direction to a position reaching the front than the most advanced position of the slit 51 from the rear end portion of the middle of the portion of each side the slit 51 of the slit 51 Jo coagulation electrodes 52 are embedded respectively. そして、これらの凝固電極52はその一部のみが把持面43に露出させている。 And these coagulation electrode 52 exposes only a portion of the gripping surface 43.

【0016】図7で示すように、一対の把持部材42 [0016] As shown in Figure 7, a pair of gripping members 42
a,42bの一方に設けられた凝固電極52は把持部材42a,42bが閉じたとき、他方の把持部材42a, a, coagulation electrode 52 provided on one 42b when the gripping member 42a, 42b are closed, the other gripping member 42a,
42bに設けられた凝固電極52に対してそれぞれ対向一致して、その露出端が近接して接触することなく向き合う。 Respectively coagulation electrodes 52 provided on the 42b opposite match, face without contacting adjacent its exposed end. このため、把持部材42a,42bを閉じたとき、極性の異なる凝固電極52が直接に接触させた状態で電流を流した場合に高周波電源に過負荷を与え、破損させる危険を回避できる。 Therefore, the gripping member 42a, when closed 42b, overloading the high-frequency power source if the different coagulation electrode 52 of polarity a current flows in a state of being in direct contact, it is possible to avoid the risk of damage. また、図6で示すように各凝固電極52は把持部材42a,42b内において対応する前記弾性部材41の導電性部材49に対して電気的かつ機械的に接続されている。 Each coagulation electrode 52 as shown in FIG. 6 is electrically and mechanically connected to the gripping member 42a, a conductive member 49 of the elastic member 41 corresponding within 42b.

【0017】また、把持部材42a,42bにおける把持面43には組織を噛んで捕らえるための突起54とこの突起54を受け入れるための溝55が対応的に噛み合うように設けられており、この突起54と溝55は、特に図7に示すように各把持部材42a,42bが閉じたとき、前記凝固電極52同志が接触する前に接触し、凝固電極52同士が直接に接触するのを防ぐように配設されている。 Further, the gripping member 42a, a groove 55 for receiving the projections 54 Toko projections 54 to capture biting tissue gripping surface 43 at 42b are provided so as to mesh correspondingly, the projections 54 a groove 55, in particular the gripping member 42a, as shown in FIG. 7, when 42b is closed, in contact before the coagulation electrode 52 each other are in contact, as the coagulation electrode 52 to each other is prevented from directly contacting It is disposed. さらに図8に示すように、把持部材42a, As further shown in FIG. 8, the gripping member 42a,
42bが閉じたとき、その合わさった両先端部分の高さHは切離手段6の先端部の高さhよりも高くなるよう設計されている。 When 42b is closed, the height H of the combined were both tip portion is designed to be higher than the height h of the front end portion of the separating means 6.

【0018】前記ナイフガイド44は図9及び図10に示すように1つの内腔56を有しており、左右それぞれに突出する突起44aを含め、その断面形状が略十字型を成している。 [0018] forms the knife guide 44 is 9 and has one lumen 56, as shown in FIG. 10, including the projections 44a projecting to the left and right respectively, is substantially cruciform cross section shape . 特に図10に示すように、ナイフガイド44の後端部分が、ロッド部40の先端筒部57に嵌め込まれて位置決めされる状態で接続されている。 In particular, as shown in FIG. 10, the rear end portion of the knife guide 44 is connected in a state of being positioned fitted into the distal end tube portion 57 of the rod portion 40. 前記各弾性部材41がその先端筒部57内の4つの隅の各空間内に個別的にそれぞれ配置されている。 They are arranged individually to each of the respective elastic members 41 in each space of the four corners of the tip cylindrical portion 57.

【0019】前記ロッド部40は電気的絶縁性で硬性な材料によって形成された絶縁パイプ59を主体として構成されており、図12で示すように絶縁パイプ59にはその中心軸上に貫通された内腔61と中心軸に平行して独立して貫通された4つの内腔62が形成されている。 [0019] The rod section 40 is the insulating pipe 59 that is formed by rigid material with electrically insulating properties mainly, was penetrated on the central axis in the insulating pipe 59 as shown in Figure 12 four lumens 62 through independently in parallel to the lumen 61 and the central axis are formed.
そして、絶縁パイプ59の先端部付近での周辺の4つの内腔62には絶縁被覆50を施した状態のままの弾性部材41が差し込まれている。 Then, the four lumens 62 around in the vicinity of the distal end portion of the insulating pipe 59 are inserted elastic member 41 remains subjected to insulating coating 50. また、図5で示すように各弾性部材41の導電性部材49は導電性の接続パイプ部材58を介して絶縁被覆電線63に接続され、絶縁被覆電線63はそれの内腔62に挿通されている。 The conductive member 49 of the elastic member 41 as shown in FIG. 5 through the connecting pipe member 58 of the conductive connected to the insulated wire 63, insulated wire 63 is inserted into the lumen 62 of it there.

【0020】図13で示すようにロッド部40の絶縁パイプ59の後端にはその絶縁パイプ59のものと同様に配置された中心の内腔61と周辺の4つの内腔62を有する導電性材質から成る第1電極部材65が連結されている。 The conductive having four lumens 62 and surrounding the lumen 61 of the centers arranged in the same manner as the rear end to its insulated pipe 59 of the insulating pipe 59 of the rod portion 40 as shown in Figure 13 the first electrode member 65 made of a material are connected. この第1電極部材65の後端には第1電極部材6 The first electrode member 6 at the rear end of the first electrode member 65
5と同様に中心の内腔61と前記第1電極部材65に設けられた4つの内腔62のうちの2つの内腔と同様に配置された貫通穴67を有する絶縁スペーサ66が連結されている。 5 and is coupled the insulating spacer 66 having a through hole 67 which is arranged similarly to the two lumens of the four lumen 62 provided in the first electrode member 65 with the lumen 61 of the center as well there. また、図14で示すように絶縁スペーサ66 The insulating spacer 66, as shown in Figure 14
の後端には絶縁スペーサ66と同様に中心軸上の内腔6 Lumen of the rear end is on the central axis in the same manner as the insulating spacer 66 6
1と導電性材質から成る第2電極部材68が連結されている。 The second electrode member 68 consisting of a conductive material is connected. この第2電極部材68の後端には1つの中心軸上に配設された内腔61を有する絶縁材質から成るおさえ部材69が連結されている。 It is suppressed member 69 made of an insulating material having a lumen 61 disposed on one central axis is connected to the rear end of the second electrode member 68. そして、第1電極部材65 The first electrode member 65
は電気接続部45を構成し、第2電極部材68は電気接続部46を構成する。 Constitutes an electrical connection 45, the second electrode member 68 constituting the electrical connection 46.

【0021】また、図18で示すように第1電極部材6 Further, the first electrode member as shown in FIG. 18 6
5は固定ねじ127および導電部材121を介して電源コード接続ピン124に導通され、一方、第2電極部材46は第2導電部材122を介して電源コード接続ピン125に導通される。 5 is electrically connected to the power cord connection pins 124 through the fixing screw 127 and the conductive member 121, while the second electrode member 46 is electrically connected to the power cord connection pins 125 through the second conductive member 122. 4つのユニットが組付けられたとき、一方の組の凝固電極52は電源コード接続ピン12 When four units is assembled, one set of the coagulation electrode 52 power cord connection pin 12
4と、残りの組の凝固電極52は電源コード接続ピン1 4, the coagulation electrode 52 of the remaining set of power connections Pin 1
25と各々電気的に導通される。 They are each electrically connected with 25.

【0022】ところで、ロッド部40を構成する各部材に設けられた中心軸上の内腔61は同一直線上に並び、 By the way, the lumen 61 of the central shaft provided in each member constituting the rod portion 40 are aligned on the same straight line,
ロッド部40の先端から後端まで貫通するチャンネル7 Channel 7 which penetrates from the tip of the rod portion 40 to the rear end
0として機能する。 To function as 0. そのチャンネル70の後端には体腔内のガスが体外に漏れるのを防ぐためにOリング71が配設されている。 O-ring 71 to prevent the gas in the body cavity from leaking to the outside is disposed on the rear end of the channel 70. Oリング71は前記おさえ部材69によって保持されている。 O-ring 71 is held by the holding member 69.

【0023】さらに、ロッド部40の各部材に配設された複数の中心軸に平行な内腔62及び貫通穴67も互いに連通しており、ロッド部40の先端から後端付近まで続く4つのルーメンとなり、各ルーメンにはその両端部以外が絶縁被覆され、一端が図5で示す前記接続パイプ部材58を介して前記弾性部材41に対して電気的及び機械的に接続された絶縁被覆電線63が挿通されている。 Furthermore, a plurality of central inner axis parallel to the cavity 62 and the through holes 67 disposed in each member of the rod 40 is also in communication with each other, the four continuing from the distal end of the rod portion 40 to the vicinity of the rear end becomes lumen, each lumen than its both end portions are insulating coating, insulated wire 63 which is electrically and mechanically connected to the resilient member 41 through the connecting pipe member 58 having one end shown in FIG. 5 There has been inserted. この4本の電線63のうち弾性部材41を介して一方の把持部材42aに設けられた2つの凝固電極52に電気的に導通している2本の電線63の他端は第1電極部材65に接続され、残りの凝固電極52に電気的に導通している2本の電線63の他端は第2電極部材68に接続されている。 The first electrode member 65 is one end of the grip into the two coagulation electrodes 52 provided in the member 42a is electrically conducted two wires 63 via the elastic member 41 of the four electric wires 63 is connected to the other end of the two wires 63 are electrically connected to the remainder of the coagulation electrode 52 is connected to the second electrode member 68.

【0024】次に、開閉操作体9について説明する。 Next, a description will be given handling members 9. 図3(a)で示すように、開閉操作体9は前記把持部本体8のロッド部40が挿通される内腔75を有するパイプ状の部材で形成されている。 As shown in FIG. 3 (a), the handling members 9 are formed by a pipe-like member having a lumen 75 in which the rod portion 40 of the gripper body 8 is inserted. 開閉操作体9の先端部9a Tip 9a of the handling members 9
ではその内腔75の内径が僅かに大きくなっており、その先端縁は前記把持部材42a,42bの外面とスムーズに係合するようテーパ状となっている。 In which the inner diameter of the lumen 75 is slightly greater that its leading edge has a said gripping member 42a, 42b of the outer surface and smooth to engage the tapered. 開閉操作体9 Opening and closing operation body 9
の先端部9aには前記把持部本体8の先端側に設けられている突起44aが係合するすり割り溝(スリット)7 The tip portion 9a slotted groove projections 44a provided on the distal end side of the gripper body 8 is engaged in (slit) 7
6が形成されている。 6 is formed. 開閉操作体9の後端側には後述する把持操作機構部11の開閉操作用スライダ91の後側開口部に係合する突起77を有したスナップフィット機構が設けられ、そのスナップフィット機構を介して開閉操作体9の操作手段に接続されている。 Snap-fit ​​mechanism has a projection 77 which engages the side opening after closing operation slider 91 of the grip operation mechanism unit 11 described later on the rear side of the handling members 9 are provided, through the snap fit mechanism It is connected to the operating means of the handling members 9 Te. また、突起77 In addition, the projections 77
を形成した弾性部78より先端側に位置して開閉操作体9には前記開閉スライダ91に設けられた長孔103の直線状部分に係合する平面部79が配設されている。 Flat portion 79 that engages the straight portion of the long hole 103 provided in the closing slider 91 is disposed in the handling members 9 positioned distal to the resilient portion 78 forming a. このとき、すり割り溝76と平面部79は図3(a)に示す同じ向きの位置関係に決められている。 In this case, slit groove 76 and the flat portion 79 is determined in the positional relationship in the same direction shown in FIG. 3 (a).

【0025】前記切離手段6は図3(b)で示すように構成されている。 [0025] The separating means 6 is constituted as shown in FIG. 3 (b). 切離手段6は先端に刃付けがなされたナイフ部材81と、絶縁材からなるナイフ固定部材82 Separating means 6 and the knife member 81 sharpened is made to tip, knife fixing member 82 made of an insulating material
と、絶縁材からなるチューブ80にて絶縁被覆されたナイフロッド83と、ナイフスライダのナイフ固定ねじに係合するために両面を平坦な切欠き部84を配設したナイフ接続部材85とで切離手段が構成されている。 When a knife rod 83 which is insulated coated with a tube 80 made of an insulating material, Setsu de knife connecting member 85 which is disposed a flat notch 84 on both sides for engaging the knife fixing screws of the knife slider is away means is configured.

【0026】次に、手元操作部4における把持操作機構部11、給電接続部12、切離操作部13及び操作選択機構部14について説明する。 Next, the gripping operation mechanism unit 11 in the operation portion 4, the power feeding connector 12, the separating operation unit 13 and the operation selecting mechanism 14 will be described. まず、図16を参照して、開閉操作体9を操作する手段の把持操作機構部11 First, referring to FIG. 16, the grasping operation mechanism portion 11 of the means for operating the handling members 9
について説明する。 It will be described. 把持操作機構部11は筒状の開閉スライダ91を設けてなり、開閉スライダ91はその先端側部分をスライダ嵌合部92として、これを手元操作部4の第1支持部材16に設けられた内腔93に対して嵌合し、これにより回転及び軸方向へ進退可能な如く設けられている。 Gripping operation mechanism unit 11 is provided with a tubular opening and closing the slider 91, among closing slider 91 to the distal portion as a slider fitting portion 92, provided it to the first support member 16 of the operation portion 4 fitted against lumen 93, it is provided as a retractable to rotate and axially thereby. この開閉スライダ91はスライダ支持部材95で回転自在に保持される。 The closing slider 91 is rotatably held by the slider supporting member 95. つまり、開閉スライダ9 In other words, the opening and closing the slider 9
1の外周には環状溝96が形成され、この環状溝96に対して環状部材からなるスライダ支持部材95が被嵌している。 The first outer peripheral annular groove 96 is formed, the slider supporting member 95 comprising a circular member is fitted on to this annular groove 96. つまり、開閉スライダ91はスライダ支持部材95に対してその軸方向には相対的に移動しないように固定されるが、その軸を中心とする回転が可能である。 That is, opening and closing the slider 91 is in the axial direction relative to the slider supporting member 95 is fixed so as not to move relative, it can rotate around its axis.
このとき、前記第1支持部材16の内腔93とスライダ91との間には気密用の0リング(図示せず)を配設し、その間の部分の気密が保たれるようになっている。 In this case, it arranged a 0-ring for airtight (not shown) between the lumen 93 and the slider 91 of the first support member 16, so that the airtightness therebetween portion is maintained .

【0027】スライダ支持部材95にはラチェット爪9 [0027] ratchet the slider support member 95 claw 9
7が取付け固定されており、ラチェット爪97にはスライダ支持部材95の方へ付勢された状態で、かつ第2支持部材17に枢着されたラチェット98に設けられた複数の溝99に係合する戻り止め機構が構成されている。 7 are attached and fixed, in the energized state toward the slider supporting member 95 in the ratchet pawl 97, and engages the plurality of grooves 99 provided on the ratchet 98 pivotally mounted to the second support member 17 if the detent mechanism is configured.
図2で示すようにラチェット98は板ばね100によって上述した向きへ弾性的に付勢されている。 Ratchet 98 as shown in Figure 2 is resiliently biased to the direction described above by the leaf spring 100. ラチェット98の解除操作部98aは手元操作部4の第1支持部材16の下側に位置して配置されている。 Unlocking portion 98a of the ratchet 98 that it is located below the first support member 16 of the operation portion 4.

【0028】前記開閉操作用スライダ91は手元操作部4の第1支持部材16における内腔93と同軸的な内腔101を有しており、その一部分には図17に示すように真円ではなく、直線部分102を含む長孔103となっており、その長孔103の部分の付近の周辺には、術者の例えば人指し指を当る窪み104aと突部104b [0028] The opening and closing operation slider 91 has a lumen 93 coaxial with the lumen 101 in the first support member 16 of the operation portion 4, the portion thereof a perfect circle as shown in FIG. 17 without straight portion 102 has a long hole 103 comprising, around the vicinity of the portion of the long hole 103, the surgeon, for example, depression hit the index finger 104a and the projection 104b
とが交互に複数形成した指当て部104が設けられている。 DOO finger touch portion 104 is provided with a plurality of alternately formed. この指当て部104によって開閉操作用スライダ9 The release members 104 by the opening and closing operation slider 9
1に対して回転トルクを効率的に与える操作を行うことができる。 You can perform an operation of providing rotational torque efficiently for one. 指当て部104における窪み104aと突部104bはその深さと長さが異なる2種のものがあり、 104a and the projection recess in the finger rest section 104 104b may include the two or whose depth and different lengths,
その配置は前記長孔103の向きに対して任意ではなく、一義的に決められ、術者はその指当て部104の配置状態で長孔103の向き、つまり、この長孔103に係合する開閉操作体9の平面部79の向き、従って、回転自在な開閉操作体9の現在の向きが認識できるようになっている。 The arrangement is not any relative orientation of the slot 103, uniquely determined, the surgeon the orientation of the slot 103 in the arrangement of the release members 104, i.e., engages in the elongated hole 103 the orientation of the flat portion 79 of the handling members 9, therefore, the current orientation of the rotatable handling members 9 is adapted to recognize.

【0029】さらに、開閉操作用スライダ91の手元側端には図16で示すように体腔内の気腹ガスが体外へ流出するのを防ぐためのゴムキャップ105が着脱自在に被着配設される。 Furthermore, rubber cap 105 for pneumoperitoneum gas in the body cavity is prevented from flowing outside the body as shown in Figure 16 is the Chakuhai設 detachably on the proximal end of the opening and closing operation slider 91 that. このゴムキャップ105は前記開閉操作体9の突起77の部分を含めて気密的に包囲するようになっている。 The rubber cap 105 is adapted to sealingly enclose including portions of the projections 77 of the handling members 9. 図4に示すように把持部本体8が組付けられると、その開閉操作体9と突起77は内側へ移動することが不可能となり、開閉操作体9が外されることはなくなる。 When the grip portion body 8 are assembled as shown in FIG. 4, the handling members 9 and the protrusion 77 thereof is disabled to move inward, the handling members 9 is it not to remove.

【0030】一方、手元操作部4の第1支持部材16 Meanwhile, the first support member 16 of the operation portion 4
と、開閉操作用スライダ91との間にはU字型の単一板ばね部材から成るハンドル111が架設されている。 When it is laid handle 111 consisting of a single plate spring member U-shape between the opening and closing operation slider 91. ハンドル111の一端は第1支持部材16に前記第2支持部材17を介して固定されており、ハンドル111の他端はスライダ支持部材95に対して枢着されている。 One end of the handle 111 is fixed via the second supporting member 17 to the first support member 16, the other end of the handle 111 is pivoted to the slider supporting member 95. そして、ハンドル111の弾性付勢力によって後方の手元側へ退避する向きに開閉操作用スライダ91を弾性的に付勢する。 Then, the opening and closing operation slider 91 in the direction to retreat to the rear of the hand side by the elastic biasing force of the handle 111 is resiliently biased.

【0031】図18で示すように前記給電接続部12は構成されている。 [0031] The feed connection 12 as shown in Figure 18 is configured. すなわち、この給電接続部12は例えばポリスルホン等の絶縁性を有する材質から成る接続部本体115を備える。 That is, the feed connection 12 comprises a connecting body 115 made of a material having an insulating property, for example, polysulfone and the like. この接続部本体115には手元操作部4の中心軸に対して同軸的な内腔116を有している。 And a coaxial bore 116 with respect to the central axis of the operation portion 4 in the connection part main body 115. この内腔116には把持部本体8のロッド部40が差し込まれるようになっている。 So that the rod portion 40 of the gripper body 8 is inserted in the lumen 116. また、その把持部本体8に挿通した切離手段6のナイフロッド83の後端側部分を貫通させている。 Also passed through the rear end portion of the knife rod 83 of the separating means 6 which is inserted into the gripper body 8.

【0032】この接続部本体115には把持部本体8の電気接続部45,46の間隔に対応した間隔を前後に設け、その一部を前記内腔116に僅かに突出して露出させた状態で内蔵された導電性材質のものから成る第1導電部材121と第2導電部材122が設置されている。 [0032] This is the connection body 115 spaced corresponding to the spacing of the electrical connection portions 45, 46 of the gripper body 8 back and forth, while being exposed to slightly protrude a part into the lumen 116 a first conductive member 121 consisting of those of the built-in conductive material and the second conductive member 122 is installed.
さらに接続部本体115には前記各導電部材121,1 Further, the each conductive member to a connection body 115 121,1
22に対してそれぞれ個別的にその先端部をねじ込んで機械的及び電気的に接続した2本の電源コード接続ピン124,125が植設されている。 Two power connections pins 124 and 125 are implanted that mechanically and electrically connected by respective screwed individually its tip against 22. 電源コード接続ピン124,125の根元部分は電気的絶縁材から成るカバー126で覆われており、接続部本体115の外面から突出する電源コード接続ピン124,125の先端部分はそのまま導電部分が露出している。 Root portion of the power cord connection pins 124 and 125 is covered with a cover 126 made of electrically insulating material, the tip portion of the power cord connection pins 124 and 125 protruding from the outer surface of the connection portion main body 115 as conductive portions are exposed are doing.

【0033】また、2本の電源コード接続ピン124, Further, two power cord connection pin 124,
125と対応する前記導電部材121,122の少なくとも一方にはそれの電源コード接続ピン124,125 125 and the corresponding at least one to it of the power cord connection pins of the conductive member 121, 122 and 125
と対称な位置で把持部本体用固定ねじ127が設けられている。 The gripping unit main body fixing screw 127 is provided at positions symmetrical with. 固定ねじ127は導電部材121にねじ込み可能な金属製のねじ部128と絶縁性を有する絶縁性つまみ129から成る。 Fixing screw 127 is made of an insulating knob 129 having an insulating screwable metallic threaded portion 128 to conductive member 121. そして、固定ねじ127をねじ込むことによりねじ部128の平坦な先端面を、前述した把持部本体8の中空のロッド部40における切欠き平坦部48に押し当てて、把持部本体8と接続部本体115を機械的に固定し、同時に前記把持部本体8の電気接続部45,46に導電部材121,122を接触させて電気的に接続するようになっている。 Then, the flat tip surface of the screw portion 128 by screwing a fixing screw 127, is pressed against the notch flat portion 48 of the hollow rod portion 40 of the gripper body 8 described above, connecting body and the gripping portion main body 8 115 mechanically fixed and is adapted to electrically connect by contacting the conductive members 121 and 122 to the electrical connection portions 45, 46 of the gripper body 8 at the same time. 第2導電部材122の内径は接続部本体115及び第1導電部材121の内径よりも必ず小さくなるよう設計されているので、第2電極部材122は鉗子固定ねじ127の締め付けによって必ず第2導電部材122に接触する。 Since the inner diameter of the second conductive member 122 is designed to be always smaller than the inner diameter of the connecting body 115 and the first conductive member 121, always second conductive member by the second electrode member 122 is tightened the clamp fixing screw 127 contacting the 122.

【0034】この接続部本体115の後端部外周には比較的小径の雄ねじ部131が形成され、雄ねじ部131 The relatively small diameter of the male thread portion 131 on the outer periphery of a rear end of the connection portion main body 115 is formed a male screw portion 131
には切離操作部13のガイド部材132の前端部に形成した被嵌部133をねじ込み固定している。 It is screwed to the fitting portion 133 formed in the front end portion of the guide member 132 of the separating operation unit 13 to. また、接続部本体115の後端外周部には雄ねじ部131より中間部側に隣接して小径段部134を形成し、小径段部13 Further, the rear end outer peripheral portion of the connecting body 115 to form a cylindrical portion 134 adjacent from the male screw portion 131 in the middle portion, the cylindrical portion 13
4に前述した第2支持部材17の屈曲部17cに連結した環状部材135を摺動自在に被嵌している。 The annular member 135 which is connected to the bent portion 17c of the second support member 17 described above to 4 are slidably be fitted. このため、第2支持部材17に対して接続部本体115は相対的に軸方向へ移動することなく回転自在である。 Thus, connecting body 115 relative to the inner member 17 is rotatable without moving relatively in axial direction. 前記被嵌部133は第2支持部材17の環状部材135が抜けることを防止する。 Wherein the fitting portion 133 to prevent the annular member 135 of the second support member 17 comes out.

【0035】図19で示すように、切離操作部13は前記ガイド部材132にその軸方向へスライドするナイフスライダ142を設けている。 As shown in Figure 19, the separating operation unit 13 is provided with a knife slider 142 to slide to the axial direction on the guide member 132. ガイド部材132はその軸方向に沿ってスリット141を形成し、ナイフスライダ142は後述するねじ受け部材143とナイフ固定ねじ144の先端をスリット141に係合し、ガイド部材132上を軸方向にスライドするように設けられている。 Guide member 132 forms a slit 141 along its axial direction, the knife slider 142 engages the distal end of the screw receiving member 143 and knife fixing screw 144 described later slit 141, sliding on the guide member 132 in the axial direction It is provided so as to. このナイフスライダ142にはねじ受け部材143 Screws on the knife slider 142 receiving member 143
とナイフ固定ねじ144がねじ込み装着されている。 Knife fixing screw 144 is screwed attached with. ねじ受け部材143とナイフ固定ねじ144はそのナイフスライダ142の壁部を貫通して直線的に向き合う対称的な位置で配設されている。 Screw receiving member 143 and knife fixing screws 144 are arranged at symmetrical positions facing linearly through the wall portion of the knife slider 142. ナイフスライダ142の前後端にはそれぞれ鍔142aが形成されている。 Each flange 142a in the front and rear ends of the knife slider 142 is formed. また、 Also,
ねじ受け部材143とナイフ固定ねじ144の先端は互いに向き合う平坦面143a,144aが形成されている。 Screw receiving member 143 and the flat surface 143a tip of the knife fixing screw 144 which face each other, 144a are formed. ねじ受け部材143は固定的に設置されており、ナイフ固定ねじ144はつまみ145によってねじ込み量を選定することができる。 Screw receiving member 143 is fixedly installed, the knife fixing screw 144 can be selected screwing amount by knob 145. そして、ねじ受け部材143 Then, screw receiving member 143
とナイフ固定ねじ144の互いに向き合う平坦面143 A flat surface 143 facing each other of the knife fixing screw 144
a,144aの間で、前記切離手段6のナイフロッド8 a, between 144a, knife rod 8 of the separating means 6
3の切欠き部84を挟み込むようになっている。 Is adapted to sandwich the cutout portion 84 of 3. このとき、先端のナイフ部材81またはナイフ固定部材82はナイフガイド44に挿入軸を中心とした回転方向に運動するよう係合されている。 In this case, the knife member 81 or knife fixing member 82 of the tip is engaged to move in the rotational direction around the insertion axis to the knife guide 44. ナイフ固定ねじ144を緩めればナイフロッド83の固定を解除できる。 You can release the knife rod 83 by loosening the knife fixing screw 144.

【0036】なお、前記挿入パイプ3、第1支持部材1 [0036] Incidentally, the insertion pipe 3, first support member 1
6、開閉操作体9、把持部本体8、ガイド部材132の各々に設けられている内腔は全て同一の軸上に配置される。 6, the handling members 9, gripper body 8, lumen is provided in each of the guide members 132 are all arranged on the same axis. また、把持部本体8と、固定ねじ127と、スリット141の回転方向の向きも図2に示される位置関係で決められる。 Further, a gripping portion main body 8, a fixing screw 127, is determined by the positional relationship of the rotational orientation of the slit 141 is also shown in Figure 2.

【0037】次に、操作選択機構部14の構成について説明する。 [0037] Next, the configuration of the operation selection mechanism section 14. 第2支持部材17の手元側部分には単一板ばね材から成るフック部材151の一端部分が固定されており、このフック部材151の自由端部の先端は前記スライダ支持部材95を取着するハンドル111の一端部に設けられた長孔152に対して係脱可能な状態で係合するようなJ型の鉤形状を成したフック部153となっている。 The proximal portion of the second support member 17 has one end portion of the hook member 151 formed of a single plate spring member is fixed, the tip of the free end of the hook member 151 is attached to the slider supporting member 95 has a hook portion 153 which forms a J-type hook-shaped so as to engage disengageably state with respect to the long hole 152 provided at one end of the handle 111. フック部材151の中間途中部分には小孔15 The intermediate middle portion of the hook member 151 small holes 15
4が形成されている。 4 is formed.

【0038】さらに、第2支持部材17にはストップ選択レバー156が旋回可能に設けられている。 [0038] Further, the stop selection lever 156 is provided pivotably to the second supporting member 17. このストップ選択レバー156は前記フック部材151の小孔1 The stop selection lever 156 small holes 1 of the hook member 151
54に係合する突起155aを先端に有した係脱アーム端部155と後述するストップアーム端部157を設けてなり、係脱アーム端部155と後述するストップアーム端部157は軸部158を中心として一体に回動するようになっている。 A disengagement arm end 155 having a projection 155a to be engaged with the 54 to the tip becomes provided stop arm ends 157 to be described later, the stop arm ends 157 to be described later disengagement arm end 155 of the shaft portion 158 It is adapted to rotate together as a center.

【0039】係脱アーム端部155が前記フック部材1 The engaging and disengaging the arm end 155 is the hook member 1
51に並び、その突起155aが前記フック部材151 Arranged in 51, the projection 155a is the hook member 151
の小孔154に係合する第1位置と、前記フック部材1 A first position engaging the ostium 154 of the hook member 1
51から突起155aのある前記係脱アーム端部155 The engaging arm end 155 with a protrusion 155a from 51
が退避する第2位置を択一的に選択可能であり、そして、第1位置にあるときには突起155aがフック部材151を押し上げ、フック部153がハンドル111の長孔152に対して係合することができない位置に退避させて待機させるとともに、ストップアーム端部157 There are possible alternatively selecting the second position to retreat, and, the projection 155a when in a first position pushes the hook member 151, the hook portion 153 is engaged with the long hole 152 of the handle 111 together to stand is retracted to a position where it can not, the stop arm ends 157
がナイフスライダ142の前方の鍔142aの前方への移動領域に入り込み、そのナイフスライダ142の前方へのスライドを防止する位置になるようになる。 There enters the movement region of the forward of the front flange 142a of the knife slider 142, it will be in a position to prevent the slide to the front of the knife slider 142. 第2位置にあるときには、そのフック部材151が自由となり、フック部153がハンドル111の長孔152に対して係合可能となるとともに、ストップアーム端部15 When in the second position, the hook member 151 rotates freely, together with the hook portion 153 is engageable with respect to the long hole 152 of the handle 111, the stop arm end 15
7がナイフスライダ142の前方の鍔142aの前面領域から退避し、そのナイフスライダ142の前方へのスライドを可能ならしめるようになる。 7 is retracted from the front region of the front flange 142a of the knife slider 142, so that makes it possible to slide to the front of the knife slider 142.

【0040】開閉操作体9を操作部本体15の内腔に挿入し、図16および図17に示すように、その開閉操作体9の後端側の突起77と平面部79が各々開閉スライダ91の後端開口部及び長孔103に係合することで、 The opening and closing operation member 9 is inserted into the lumen of the operation portion main body 15, as shown in FIGS. 16 and 17, the rear end side of the protrusion 77 and flat portion 79 are each opened and closed slider 91 of the handling members 9 by engaging the rear end opening and the elongated hole 103 of
開閉操作体9は開閉スライダ91に対して挿入軸方向及び挿入軸を中心とする回転方向に固定される。 Handling members 9 is fixed to the rotational direction around the insertion axis direction and the insertion axis with respect to opening and closing the slider 91. 把持部本体8は、図16に示すように開閉操作体9の内腔75を経て給電接続部12の内腔に挿入され、図18に示すように固定ねじ127をねじ込み、その先端を切欠き平坦部48に係合させることで、給電接続部7に対して機械的に固定される。 Gripper body 8 is inserted into the lumen of the lumen 75 through by feed connection 12 of the handling members 9 as shown in FIG. 16, screw the fixing screw 127 as shown in FIG. 18, the notch and the distal end by engaging the flat portion 48 are mechanically fixed to the feed connection 7.

【0041】さらに、把持部本体8は、その先端側で図15に示すようにナイフガイド44の突起44aが開閉操作体9の先端のすり割り溝76に嵌まり込んで係合しており、開閉操作体9に対して回転方向にのみ固定される。 [0041] Further, the grip portion body 8, the projection 44a of the knife guide 44, as shown in FIG. 15 is engaged fits into slit groove 76 of the tip of the handling members 9 at its distal end, It is only fixed in the rotational direction with respect to the handling members 9.

【0042】(作用)図1で示すように、4つのユニットが組立てられた状態での鉗子1ではその開閉操作用スライダ91に回転トルクを加えると、該スライダ91に直接又は間接的に回転方向に係合又は固定されている把持部本体8、開閉操作体9、給電接続部12、切離操作部13及び切離手段6の全体を、図20に示すように挿入パイプ3に対して独立して一体的に回転させることができる。 [0042] (Operation) As shown in Figure 1, when the forceps 1, the opening and closing operation slider 91 in an assembled state four units added torque, directly or indirectly rotating direction to said slider 91 independent gripper body 8 which is engaged or fixed, the handling members 9, feed connection 12, the entire separating operation unit 13 and the separating means 6, with respect to the insertion pipe 3 as shown in FIG. 20 it can be rotated integrally with.

【0043】また、図21に示すように、ストップ選択レバー156の係脱アーム端部155の突起155aをフック部材151上の小孔154に係合させ、そのフック部材151を長孔152に対して非係合な状態にある第1位置のとき、ストップアーム端部157がナイフスライダ142の前方の鍔142aの前面領域に入り込み、ナイフスライダ142を前進させようとしても、そのストップ選択レバー156のストップアーム端部15 Further, as shown in FIG. 21, the projection 155a of the disengaging arm end 155 of the stop selector lever 156 is engaged with the small holes 154 on the hook member 151, the hook member 151 relative to the elongated hole 152 Te when in the first position in the non-engaged state, the stop arm end 157 enters the front region of the front flange 142a of the knife slider 142, even if an attempt to advance the knife slider 142, the stop selection lever 156 the stop arm end 15
7がそれを阻止するため、ナイフスライダ142を前進移動させることができない。 For 7 to stop it, it is impossible to move forward the knife slider 142.

【0044】一方では係脱アーム端部155が前記フック部材151に並び、その突起155aが前記フック部材151の小孔154に係合しているため、フック部材151はハンドル111の長孔152から退避し、ハンドル111には係合していないため、ハンドル111の作動が可能であり、そこで、ハンドル111を握り、上端部を前方へスライドさせると、この動きに連動して開閉操作用スライダ91、開閉操作体9のみが前進し、開閉操作体9の先端が2つの把持部材42a,42bの手元端部分に押し当たり係合すると、その2つの把持部材42a,42bは前後への動きを伴うことなく定位置で互いに近付き閉じる。 [0044] While a sequence in the are disengaged arm end 155 hook member 151, since the projection 155a is engaged with the small holes 154 of the hook member 151, the long hole 152 of the hook member 151 is a handle 111 saved, since the handle 111 does not engage, are possible actuation of the handle 111, where, grasps the handle 111 and sliding the upper end to the front opening and closing operation slider 91 in conjunction with this movement , only handling members 9 advances, the tip of the handling members 9 are two gripping members 42a, when per engagement pushed to the proximal end portion of the 42b, the two gripping members 42a, 42b is accompanied by movement back and forth Close approach each other at a fixed position without. つまり、先端把持部5は前後への動きを伴うことなく定位置で開閉させることができる。 In other words, the distal clasps 5 can be opened and closed in place without movement back and forth.
また、把持部材42a,42bは弾性部材41を介して保持されているので、把持部材42a,42bの把持面43が極力平行な向きで把持対象物を閉じ込むように閉じる。 Further, the gripping member 42a, 42b is because it is held via the elastic member 41, gripping member 42a, closing as gripping surfaces 43 and 42b are Komu close the gripping target by as much as possible parallel orientation.

【0045】このとき、スライダ支持部材95に取り付けられた爪97も合わせて前進し、図16で示すラチェット98の溝99に係合し、開閉操作用スライダ91が手元側へスライドしないよう、戻り止め作用が発揮する。 [0045] At this time, advancing the combined pawl 97 attached to the slider support member 95 also engages the groove 99 of the ratchet 98 shown in FIG. 16, as the opening and closing operation slider 91 does not slide to the proximal side, the return stop action to exert.

【0046】通常、この把持部材42a,42bが閉じた状態で、鉗子1は図示しないトラカールを通じて体腔内に挿入される。 [0046] Normally, the gripping member 42a, in a state in which 42b is closed, the forceps 1 is inserted into the body cavity through the trocar (not shown). 鉗子1の先端部が体腔内に挿入されると術者はラチェット98を図16中矢印の方向に旋回させ、爪97と溝99の係合を解除する。 When the tip of the forceps 1 is inserted into a body cavity the surgeon to pivot the ratchet 98 in the direction in FIG. 16 arrow to disengage the pawl 97 and the groove 99. 係合が解除されると、開閉操作用スライダ91に接続されたハンドル1 When the engagement is released, the handle 1 connected to the opening and closing operation slider 91
11の上端部は弾性力によって手元側へスライドし、その開閉操作用スライダ91と開閉操作体9も合わせて後退する。 The upper end of the 11 slides to the proximal side by the elastic force, the handling members 9 and its opening and closing operation slider 91 also moves backward suit. このため、係合状態が解除され、把持部材42 Therefore, the engaged state is released, the gripping member 42
a,42bは体腔内において再び弾性部部材41によって拡開する状態になる。 a, 42b is in a state of expanding again by the elastic portion member 41 in the body cavity.

【0047】術者は体腔内で切離しようと考える組織1 [0047] The operator organization 1 thought of as a disconnect so within the body cavity
61(特に血管を含み止血作業が必要と考えられるもの)を例えば図22に示すようにその開いた2つの把持部材42a,42bの間に引き込み、把持部材42a, 61 two gripping members 42a thereof opened to show (especially hemostasis work include vascular those considered necessary) in FIG. 22 for example, pulling during 42b, gripping member 42a,
42bを再度、前述したような操作によって図23に示すように閉じ、組織161を把持する。 42b again, it closed as shown in FIG. 23 by the operation as described above, to grasp tissue 161. 組織161を把持した状態で鉗子1に高周波電流を供給すると、先端に設けられた凝固電極52間で電流が流れ、この電流によって生じる熱によって少なくとも図24に示すように電極周辺の組織部分162が凝固される。 When supplying high-frequency current to the forceps 1 while gripping the tissue 161, current flows between the coagulation electrodes 52 provided on the tip, the tissue portion 162 of the electrode periphery, as shown in at least FIG. 24 by the heat generated by this current It is coagulation. このように組織161を凝固した後は図25(a)に示すようにストップ選択レバー156のストップアーム端部157を、矢印aの方向に旋回させると、係脱アーム端部155の突起155aが小孔154より外され、ナイフスライダ1 The stop arm end 157 of the stop selector lever 156 as is shown in FIG. 25 (a) was coagulated thus the tissue 161, the pivoting in the direction of arrow a, the protrusion 155a of the disengaging arm end 155 It is removed from the small hole 154, knife slider 1
42は前方へスライドされ、切離手段6の先端に設けられたナイフ部材81も前進し、スリット51を通って図28で示す組織凝固部162の間の部分を切離する。 42 is slid forward, the knife member 81 provided at the tip of the separating means 6 is also moved forward, Kirihanasuru a portion between the tissue coagulation unit 162 shown in FIG. 28 through the slit 51.

【0048】この切離動作の結果、切離された組織16 [0048] As a result of this separating operation, separated from the organization 16
1は図28に示すように切離部分164の断端付近が凝固されているため、組織中に血管165が含まれていても止血が完了しているため出血することはない。 1 because near stump separating portion 164 is solidified, as shown in FIG. 28, it does not bleed because also include vessel 165 hemostasis is completed in the tissue. 組織切離後は図29(a)に示すようにナイフスライダ142 Knife slider 142 as after tissue dissection is shown in FIG. 29 (a)
を後退させ、先端のナイフ部材81を挿入パイプ3内に引き込み前述したようにラチェット98を旋回し、開閉操作用スライダ91を後退させて把持部材42a,42 Retracting the pivots the ratchet 98 as described above draws the knife member 81 of the distal end in the insertion pipe 3, is retracted closing operation slider 91 gripping member 42a, 42
bを開き、組織を開放する。 Open the b, to open the organization. このとき、フック部材15 At this time, the hook member 15
1のフック部153が図29(b)に示すようにハンドル111上の長孔152に係合し、ハンドル111が開閉操作ようにスライダ91を前進させるのを防げるようになる。 1 of the hook portion 153 is engaged with the long hole 152 on the handle 111 as shown in FIG. 29 (b), the handle 111 is to prevent from advancing the slider 91 in the closing operation so. 再び先端部3の開閉動作を行ないたい場合は図29(a)で示すようにストップ選択レバー156を矢印aの方向に旋回させ、図21(b)のように、突起1 Pivots the stop selector lever 156 as shown in FIG. 29 If you want to perform a closing operation of the distal end portion 3 again (a) in the direction of arrow a, as shown in FIG. 21 (b), the projections 1
55aを小孔154に係合させればよい。 55a and it is sufficient engaged with the small hole 154.

【0049】使用した鉗子1を洗浄する場合には図2で示すように複数のユニットに分解し、それぞれを洗浄する。 [0049] When cleaning the forceps 1 used is decomposed into a plurality of units as shown in Figure 2, wash respectively.

【0050】(効果)本実施例に示した鉗子1は複数のユニット部分に分解可能な構成になっているため、鉗子1を洗浄する場合には複数のユニットに分解し、それぞれを洗浄するため、複雑な鉗子内部まで容易に洗浄することができる。 [0050] Since the forceps 1 shown in (Effect) The present embodiment is in a degradable structure into a plurality of unit portion, since in the case of cleaning the forceps 1 is decomposed into a plurality of units, cleaning the respective , it can be easily cleaned up internal complex forceps. また、凝固電極52は把持面43にのみ露出されており、かつバイポーラであるので意図しない組織部位に不要な電流を流す不都合を極力回避することができる。 Further, the coagulation electrode 52 is exposed only to the gripping surface 43, and can be avoided as much as possible the disadvantage that flow unnecessary current to unintended tissue sites because it is bipolar. また、凝固電極52は把持部材42a,42 Further, the coagulation electrode 52 gripping member 42a, 42
bに設けられたスリット51の両側にその後端からスリット51の先端より前方まで配置されているため、切離手段6がそのスリット51の中をスライドして組織を切離するとき、その切離部分の周囲は必ず凝固されており、切離によって出血することはない。 Because it is arranged from the rear end on both sides of the slit 51 provided in the b to the front from the front end of the slit 51, when separating means 6 for dissecting tissue to slide through the slits 51, the cutoff piece around the portions are always coagulated never bleed by dissection.

【0051】先端把持部5の把持部材42a,42bは挿入パイプ3に対して独立して回転するため、トラカールに設けられている気密手段と挿入パイプ3の間で生じる摩擦の影響を受けることはなく、どんなトラカールに対しても常に同一の感覚で操作できる。 The gripping member 42a of the distal clasps 5, because 42b is to rotate independently with respect to the insertion pipe 3, being affected by the friction generated between the airtight unit and the insert pipe 3 provided in the trocar is no, it can always be operated in the same sense for any trocar.

【0052】切離手段6は常に挿入パイプ3もしくは把持部材42a,42b内に納まっているので、意図しない組織部位に触れ傷付けることはない。 [0052] separating means 6 is always inserted pipe 3 or the gripping member 42a, so that falls within 42b, it does not hurt touched unintended tissue site.

【0053】把持部材42a,42bに直接回転操作部を設けた場合、その操作部はハンドルより手元側に位置してしまい、片手で操作するのは難しいが回転操作部を開閉部材を介して把持部本体に接続した場合回転操作部を鉗子を保持している手の人指し指で操作することができ、片手で開閉、回転が操作できる。 [0053] gripping member 42a, if provided directly with a rotary operation portion 42b, the operation unit will be located proximally from the handle, but is difficult to operate with one hand through the opening and closing member rotation operation portion grasped the rotating operation unit when connected to a part body can be operated with the index finger of the hand holding the forceps, closing with one hand, the rotation can be operated.

【0054】通常の先端把持部開閉動作時には切離手段6が作動するのを防げ、切離手段6の作動可能時には新たに組織を把持することを防げるような、切離動作と閉動作を選択する機構を設けたので、使用者は止血不十分な組織を不意に切離してしまうことがない。 [0054] The normal distal clasps opening and closing prevent from separating means 6 is activated, selects the operable time of the separating means 6 such as prevent it gripping the new tissue, the dissection operation and closing operation since there is provided a mechanism for, there is no possibility that the user would detach unexpectedly hemostasis inadequate organization.

【0055】把持部本体は操作部に固定されており、開閉動作時も操作部に対して動くことがないため組織を狙い通りに容易に把持できる。 [0055] grip body is fixed to the operation portion can be easily grasped aimed as a tissue for never opening and closing operation also moves to the operation unit.

【0056】先端把持部5を閉じても凝固電極52同士が接触し、導通することはないため、組織を把持しないと電流は流れない。 [0056] Closing the distal clasps 5 in contact coagulation electrode 52 to each other, because does not conduct, current will not flow unless grasp tissue.

【0057】切離手段6は先端のナイフ部材81と手元側の固定部材が完全に絶縁されているため、操作部が丈夫な金属から成っていて切離中に間違って使用者が通電しても使用者が感電することはない。 [0057] separating means 6 for fixing members of the knife member 81 and the proximal tip is completely insulated, the operation unit by the user inadvertently while severing consist durable metal is energized never be the user an electric shock.

【0058】開閉操作用スライダ91の指あての形状を不統一とし、その配置と、内部の長孔103の向きを常にある決められた位置関係とすることで使用者は指あてを目印として開閉操作体9を容易に操作部に取り付けることができる。 [0058] closing the fingers addressed shape of the opening and closing operation slider 91 and unstructured, and their arrangement, the user finger addressed by the always-determined positional relationship the direction of the interior of the slot 103 as a mark the operating body 9 can be mounted easily operating unit.

【0059】(変形例)先端把持部の部材の材質をポリエーテルイミド(PEI)、ポリフェニレンサルファイド(PPS)、ポリサルホン(PSU)またはフッ素系樹脂(例えばPTFE)であってもよい。 [0059] (Modification) distal clasps member made of polyetherimide (PEI), polyphenylene sulfide (PPS), or may be a polysulfone (PSU) or a fluorine-based resin (e.g., PTFE). また、先端把持部の部材の材質が絶縁性を有するセラミック材、アルミナ(Al 23 )またはジルコニア(ZrO 2 )であってもよい。 Further, ceramic materials the material of members of the distal clasps has insulating properties, may be alumina (Al 2 O 3) or zirconia (ZrO 2). また、先端把持部の部材が凝固電極と弾性部材の部組品に対するインサート成型で製作するようにしてもよい。 Moreover, the members of the distal clasps may be manufactured by insert molding for parts Assembly coagulation electrode and the elastic member. なお、前記実施形態では把持部本体の把持部材にバイポーラ電極を組み込んだ切離機能付バイポーラ凝固鉗子の例を示したが、本発明はこれに限らず、その把持部材に一極の電極を設け、切離機能付モノポーラ凝固鉗子としてもよいものである。 Note that the although the embodiment shows an example of the grip portion separating function with a bipolar coagulation forceps incorporating a bipolar electrode gripping member body, the present invention is not limited to this, the pole of the electrode provided on the gripping member , but it may be as monopolar coagulation forceps with a separating function.

【0060】また、図30(A)乃至図35(B)は本発明の第2の実施の形態を示すものである。 [0060] Further, FIG. 30 (A) through FIG. 35 (B) shows a second embodiment of the present invention. 図30 Figure 30
(A),(B)は本実施の形態の切離機能付き凝固鉗子201全体の概略構成を示すものである。 (A), (B) shows a schematic configuration of the entire separating function coagulation forceps 201 of the present embodiment.

【0061】本実施の形態の切離機能付き凝固鉗子20 [0061] of the present embodiment disconnecting function with coagulation forceps 20
1には患者の体腔内に挿入される細長い略軸状の挿入部202と、この挿入部202の先端部に配置され、体腔内で生体組織を把持、凝固するための通電可能な処置部203と、挿入部202の基端部に連結された操作部2 An elongated generally axial shape of the insertion portion 202 to be inserted into a body cavity of a patient 1, is disposed at the distal end of the insertion portion 202, grips the living tissue in a body cavity, energizable treatment portion 203 for coagulation When the operation is coupled to the proximal end of the insertion portion 202 part 2
04とが設けられている。 04 and is provided.

【0062】さらに、凝固鉗子201には図31(A) [0062] Further, FIG. 31 is a coagulation forceps 201 (A)
に示すナイフユニット205と、図31(B)に示す鉗子ユニット206と、図31(C)に示す操作部ユニット207の3つのユニットで構成されている。 A knife unit 205 shown in, the forceps unit 206 shown in FIG. 31 (B), is composed of three units of the operation section unit 207 shown in FIG. 31 (C). ここで、 here,
ナイフユニット205および鉗子ユニット206は操作部ユニット207に対してそれぞれ着脱可能に組み付けられ、この組み付け状態で凝固鉗子201が構成されている。 Knife unit 205 and the forceps unit 206 is assembled detachably respectively operation section unit 207, coagulation forceps 201 is configured in this assembled state.

【0063】また、ナイフユニット205には図31 [0063] In addition, the knife unit 205 Figure 31
(A)に示すように細長いロッド208が設けられている。 And an elongated rod 208 is provided as shown in (A). このロッド208の先端部にはナイフ部材(切離手段)209が固定されている。 Knife members (separating means) 209 is fixed to the distal end of the rod 208. さらに、ロッド208の後端部には操作部ユニット207に接続されるユニット接続部210が形成されている。 Further, the rear end portion of the rod 208 unit connection part 210 connected to the operation section unit 207 is formed.

【0064】また、鉗子ユニット206にはナイフユニット205が挿通される細長い管体211が設けられている。 [0064] Further, elongated tubular body 211 of the knife unit 205 is inserted is provided on the forceps unit 206. この管体211の先端部には一対の導電性のばね部材212a,212bが突設されている。 A pair of conductive spring members 212a, 212b is projected from the distal end of the tube 211. 各ばね部材212a,212bの外表面には図32(A)に示すように絶縁材料213が絶縁被覆されている。 Each spring member 212a, the outer surface of the 212b insulating material 213 as shown in FIG. 32 (A) is an insulating coating.

【0065】さらに、一方のばね部材212aの先端部には第1の把持部材214a、他方のばね部材212b [0065] Further, the distal end portion of one of the spring members 212a first gripping member 214a, the other spring member 212b
の先端部には第2の把持部材214bがそれぞれ固定されている。 The tip portion second gripping member 214b are fixed respectively. ここで、第1の把持部材214aおよび第2 Here, the first gripping member 214a and a second
の把持部材214bは例えばPEEK(ポリエーテルエーテルケトン)のような絶縁性を有する材質によって形成されている。 Of the gripping member 214b is formed by a material having insulating properties, such as, for example, PEEK (polyether ether ketone). そして、両把持部材214a,214b Then, both the gripping members 214a, 214b
間はばね部材212a,212bによって外方向(互いに離れる方向)に付勢されている。 During the spring members 212a, it is biased outwardly (to each other away direction) by 212b.

【0066】また、各把持部材214a,214bおよびばね部材212a,212bには図32(A)に示すようにナイフユニット205のナイフ部材209が挿通されるスリット215,216がそれぞれ形成されている。 [0066] Each gripping member 214a, 214b and the spring member 212a, the slits 215 and 216 of knife member 209 of the knife unit 205 is inserted as shown in FIG. 32 (A) to 212b are formed. さらに、各把持部材214a,214bには一対の電極217a,217b、218a,218bがそれぞれ埋設されている。 Additionally, each gripping member 214a, a pair of electrodes 217a to 214b, 217b, 218a, 218b are embedded respectively. この場合、図32(B)に示すように第1の把持部材214aの電極217a,217bはスリット215の両側部分の内部にそれぞれ埋設され、 In this case, the first gripping member 214a of the electrode 217a, as shown in FIG. 32 (B), 217b are embedded respectively in the interior of the both side portions of the slit 215,
同様に第2の把持部材214bの電極218a,218 Similarly, the second gripping member 214b of the electrodes 218a, 218
bはスリット215の両側部分の内部にそれぞれ埋設されている。 b is embedded respectively in the interior of the both side portions of the slit 215.

【0067】また、ばね部材212a,212bの基端部は鉗子ユニット206の管体211の内部を通り、この管体211の後端側に延設されている。 [0067] The spring member 212a, the base end portion of the 212b passes through the interior of the tubular body 211 of the forceps unit 206, and extends to the rear end side of the tube 211. さらに、鉗子ユニット206の管体211の後端付近には2つの電気接点部219,220が設けられている。 Furthermore, the two electrical contacts 219, 220 is provided in the vicinity of the rear end of the tubular body 211 of the forceps unit 206. そして、電気接点部219,220の一方はばね部材212aを介して把持部材214aの電極217a,217bに、他方がばね部材212bを介して把持部材214bの電極2 Then, gripping one of the electrical contact portion 219 and 220 via a spring member 212a member 214a of the electrode 217a, the 217b, the other gripping member 214b through the spring member 212b electrodes 2
18a,218bに電気的に接続され、さらにこのとき電気接点部219,220間、ばね部材212a,21 18a, is electrically connected to the 218b, further this time between electrical contacts 219 and 220, the spring member 212a, 21
2b間、電極217(a,b)、218(a,b)間は各々電気的に絶縁されており、電極217(a,b)、 Between 2b, the electrodes 217 (a, b), 218 (a, b) between are respectively electrically insulated, the electrode 217 (a, b),
218(a,b)は処置部203において双極電極として配置され、把持部材214a,214bと共に把持凝固手段21が構成されている。 218 (a, b) it is arranged as a bipolar electrode in the treatment section 203, the gripping members 214a, gripping solidification means 21 is configured with 214b.

【0068】また、操作部ユニット207には図31 [0068] Further, the operation section unit 207 FIG. 31
(C)に示すように細長い挿入管体222と、この挿入管体222の基端部に連結されたグリップ部223とが設けられている。 An elongated insertion tube member 222 as shown in (C), and a grip portion 223 that is connected is provided at the proximal end of the insertion tube 222. ここで、挿入管体222の内腔には鉗子ユニット206が挿通されるようになっている。 Here, the lumen of the insertion tube member 222 so that the forceps unit 206 is inserted. さらに、この挿入管体222の先端部に把持部材214a, Furthermore, the gripping members 214a to the distal end of the insertion tube 222,
214bと同一材質からなるリング状の係合部材224 A ring-shaped engaging member 224 made of 214b of the same material
が設けられている。 It is provided.

【0069】また、グリップ部223には図31(C) [0069] Further, FIG. 31 is the grip portion 223 (C)
中で上端部に先端部側に延出された先端側延出部225 Out the distal end side extends is extended to the front end portion to the upper end at the middle portion 225
が設けられている。 It is provided. この先端側延出部225の先端部には挿入管体222の基端部に連結固定される連結リング226が設けられている。 Connecting ring 226 which is fixedly connected to the proximal end portion of the insertion tube 222 is provided at the distal end portion of the distal-side extending portion 225.

【0070】さらに、先端側延出部225の後方には鉗子接続部227と、ナイフ接続部228とが配設されている。 [0070] Furthermore, a forceps connecting portion 227 to the rear of the front end side extending portion 225, a knife connecting portion 228 is disposed. ここで、鉗子接続部227には鉗子ユニット20 Here, the forceps unit 20 is the forceps connecting portion 227
6の管体211の後端部を収納する内腔と、この内腔に収納した管体211の後端部に接続される接続手段とが設けられている。 A lumen for housing the rear end portion of the tubular body 211 of 6, a connecting means which is connected is provided at the rear end of the tubular body 211 housed in the lumen.

【0071】また、鉗子接続部227の後端部には後方に向けてガイドロッド229が突設されている。 [0071] Further, the rear end portion of the forceps connecting portion 227 guide rod 229 rearward is protruded. このガイドロッド229の後端部には一対の電極ピン230 A pair of electrode pins at the rear end of the guide rod 229 230
a,230bが突設されている。 a, 230b are projected. これらの電極ピン23 These electrode pin 23
0a,230bはガイドロッド229内に配設された導電部材を介して鉗子接続部227の内腔に収納された鉗子ユニット206の後端付近の電気接点部219、22 0a, 230b is near the rear end of the electrical contacts of the forceps unit 206 housed in the lumen of the forceps connecting portion 227 through a conductive member disposed in the guide rod 229 unit 219,22
0に電気的に接続されるようになっている。 It is adapted to be electrically connected to 0.

【0072】また、ナイフ接続部228には鉗子接続部227のガイドロッド229に対して摺動可能に配設されたスライダ231が設けられている。 [0072] Further, the knife connection part 228 a slider 231 which is slidably disposed with respect to the guide rods 229 of the forceps connection portion 227 is provided. このスライダ2 The slider 2
31の後端部には図31(E)に示すようにスライダ2 31 the slider 2 as a rear end portion shown in FIG. 31 (E) of
31の移動方向に対して略直交する方向に移動可能なロッド係合部材232が設けられている。 Rod engaging members 232 is provided which is movable in a direction substantially perpendicular to the 31 direction of movement of. このロッド係合部材232の略中央部位にはスライダ231の軸方向に対して斜めに配置されたテーパ孔233が形成されている。 Tapered hole 233 which is arranged diagonally are formed with respect to the axial direction of the slider 231 at a substantially central portion of the rod engaging member 232. このロッド係合部材232のテーパ孔233には鉗子ユニット206のチャンネル内を通って延出されたナイフユニット205のロッド208の後端部が係脱可能に係合されるようになっている。 So that the rear end portion of the rod 208 of the knife unit 205 which extends through the channel of the forceps unit 206 is disengageably engaged in the tapered hole 233 of the rod engaging member 232.

【0073】また、スライダ231の前端部には板ばね部材234の前端部が固定されている。 [0073] Further, the front end of the slider 231 front end of the leaf spring member 234 is fixed. この板ばね部材234の後端部はロッド係合部材232の一端部に固定されている。 The rear end of the plate spring member 234 is fixed to one end of the rod engaging members 232. そして、ロッド係合部材232は板ばね部材234によってテーパ孔233の開口部がスライダ2 Then, the rod engaging member 232, the slider opening of the tapered hole 233 by the leaf spring member 234 2
31の軸上から外れる方向に付勢されている。 It is biased in a direction deviating from the 31 axis.

【0074】また、グリップ部223には鉗子接続部2 [0074] In addition, the grip portion 223 forceps connection part 2
27の操作用のトリガー(開閉操作手段)235と、ナイフ接続部228の操作用の一対のレバー(切離操作手段)236a,236bとが設けられている。 The trigger (opening and closing means) 235 for operation 27, a pair of levers for operation of the knife connecting portion 228 (separating operation means) 236a, and the 236b are provided. ここで、 here,
トリガー235はグリップ部223の上端部に回動ピン237を中心に回動自在に連結されている。 Trigger 235 is pivotally connected to the centered pivot pin 237 to the upper end of the grip portion 223. さらに、このトリガー235には回動支点の上方に長孔238が形成されている。 Further, elongated hole 238 is formed above the rotational fulcrum to the trigger 235. この長孔238には鉗子接続部227の側面に突設された係合ピン239が挿入されている。 Engaging pin 239 is inserted protruding from the side surface of the forceps connecting portion 227 in the elongated hole 238.

【0075】また、グリップ部223の内部にはトリガー235の下端部の手掛け部35aをグリップ部223 [0075] In addition, the grip portion 223 of the working portion 35a of the lower end portion of the trigger 235 to the inside of the grip portion 223
から離れる方向(図30(B)および図31(C)中で回動ピン237を中心に時計回り方向)に付勢する板ばね部材240が配設されている。 Direction plate spring member 240 for urging (clockwise direction about the pivot pin 237 in the figures and FIG. 30 (B) 31 (C)) are disposed away from. そして、トリガー23 Then, the trigger 23
5はこの板ばね部材240のばね力によって常時は図3 5 always by the spring force of the leaf spring member 240 3
0(B)および図31(C)に示すようにグリップ部2 0 (B) and the grip portion 2, as shown in FIG. 31 (C)
23から最も離れた定位置で保持されている。 It is held in the most distant position from the 23. ここで、 here,
トリガー235の手掛け部35aを板ばね部材240のばね力に抗してグリップ部223側に引き込み操作することにより、鉗子接続部227が挿入部202の軸方向前方へ前進駆動され、鉗子ユニット206の把持部材2 By operating pull the grip portion 223 side against the finger receiving portion 35a of the trigger 235 to spring force of the leaf spring member 240, the forceps connecting portion 227 is driven forward in the axial direction in front of the insertion portion 202, the forceps unit 206 gripping member 2
14a,214bが挿入管体222の前方に突出されてばね部材212a,212bによって把持部材214 14a gripping, 214b is protruded forward of the insert tube 222 spring member 212a, by 212b member 214
a,214bが開方向に移動されるようになっている。 a, so that the 214b is moved in the opening direction.

【0076】また、一対のレバー236a,236bはグリップ部223の両側に配置され、トリガー235と同様にグリップ部223に回動ピン241を中心に回動自在に連結されている。 [0076] The pair of levers 236a, 236b are disposed on opposite sides of the grip portion 223, which is pivotally connected about a pivot pin 241 to grip 223 in the same manner as the trigger 235. さらに、各レバー236a,2 In addition, each lever 236a, 2
36bには回動支点の上方に長孔242が形成されている。 Long hole 242 is formed above the rotational fulcrum to 36b. この長孔242にはナイフ接続部228のスライダ231の側面に突設された係合ピン243が挿入されている。 Engaging pin 243 is inserted protruding from the side surface of the slider 231 of the knife connecting portion 228 in the elongated hole 242.

【0077】また、グリップ部223の両側の各レバー236a,236bには略V字状に配置された上下のアーム部244,245が設けられている。 [0077] Further, each lever 236a on both sides of the grip portion 223, the arm portions 244, 245 of the upper and lower disposed substantially V-shape in 236b is provided. そして、各レバー236a,236bの下側のアーム部245に回動ピン241が配置されている。 Each lever 236a, the pivot pin 241 is disposed in the arm portion 245 of the lower 236b. さらに、各レバー236 In addition, each lever 236
a,236bの上側のアーム部244の先端にはグリップ部223の側方に向けて屈曲された手掛け用の屈曲部246が形成されている。 a, bent portions 246 for worked at the tip of the upper arm portion 244 of 236b which is bent toward the side of the grip portion 223 is formed.

【0078】また、各レバー236a,236bの回動ピン241には各レバー236a,236bを図30 [0078] Further, each lever 236a, the lever on the pivot pin 241 of 236b 236a, figure 236b 30
(B)および図31(C)中で回動ピン241を中心に時計回り方向に付勢するばね部材247が装着されている。 The spring member 247 for urging the clockwise direction about the pivot pin 241 in (B) and FIG. 31 (C) is mounted.

【0079】さらに、グリップ部223には回動ピン2 [0079] In addition, the grip portion 223 pivot pin 2
41の近傍位置にピンガイド溝248が形成されている。 Pin guide grooves 248 in the vicinity of 41 is formed. このピンガイド溝248には操作ピン249が移動自在に挿入されている。 Operation pin 249 is inserted movably in the pin guide grooves 248. この操作ピン249にはグリップ部223内に配設されたリンク部材250の一端部が連結されている。 One end of the link member 250 disposed within the grip portion 223 is connected for this operation pin 249. このリンク部材250の他端部はトリガー235の手掛け部35aに回動ピン251を中心に回動自在に連結されている。 The other end of the link member 250 is pivotally connected to the centered pivot pin 251 in the finger receiving portion 35a of the trigger 235.

【0080】また、各レバー236a,236bの下側のアーム部245の先端にはガイド用のスリット252 [0080] Further, each lever 236a, the distal end of the lower arm portion 245 of 236b of guide slits 252
が形成されている。 There has been formed. このスリット252は各レバー23 This slit 252 each lever 23
6a,236bがばね部材247のばね力によって図3 6a, FIG. 3 by the spring force of 236b spring member 247
0(B)および図31(C)に示す定位置で保持されている状態でグリップ部223のピンガイド溝248と合致するように設定されている。 0 is set to match the pin guide grooves 248 of the grip portion 223 in a state of being held in place as shown in (B) and FIG. 31 (C).

【0081】そして、トリガー235の回動操作時にはリンク部材250を介してグリップ部223のピンガイド溝248に沿って操作ピン249が移動し、各レバー236a,236bのスリット252に挿脱可能に挿入されるようになっている。 [0081] Then, at the time of rotation operation of the trigger 235 along the pin guide grooves 248 of the grip portion 223 through the link member 250 to move the operation pin 249, removably inserted each lever 236a, the slit 252 of 236b It is adapted to be. すなわち、トリガー235の動きに合わせてリンク部材250を介して操作ピン24 That is, the operation through the link member 250 in accordance with the movement of the trigger 235 pin 24
9がスリット252上を移動するようになっており、これにより、処置部203の把持部材214a,214b 9 is controlled so as to move on the slit 252, thereby gripping member 214a of the treatment section 203, 214b
の動作状態に応じてナイフ部材209の切離動作を制御する切離動作制御手段253が形成されている。 Disconnection operation control unit 253 for controlling the separating operation of the knife member 209 in accordance with the operating conditions are formed.

【0082】次に、上記構成の切離機能付き凝固鉗子2 [0082] Next, the above-described configuration of the separating function with coagulation forceps 2
01の作用について説明する。 The operation of the 01 will be described. 本実施の形態の切離機能付き凝固鉗子201は操作部ユニット207と、鉗子ユニット206と、ナイフユニット205とを図30 Separating function coagulation forceps 201 of this embodiment is the operation section unit 207, the forceps unit 206, a knife unit 205 FIG. 30
(A),(B)に示すように一体的に組み付けた状態で使用される。 (A), it is used in a state of integrally assembled as shown in (B). そして、操作部204のトリガー235の操作によって鉗子接続部227が挿入部202の軸方向に移動操作されるとともに、レバー236a,236b Then, the forceps connecting portion 227 is operated to move the axial direction of the insertion portion 202 by operating the trigger 235 of the operation unit 204, the lever 236a, 236b
の操作によってナイフ接続部228が挿入部202の軸方向に移動操作される。 Knife connecting portion 228 is operated to move the axial direction of the insertion portion 202 by the operation.

【0083】ここで、初期状態では操作部204のトリガー235の手掛け部35aは図30(B)および図3 [0083] Here, finger receiving portion 35a of the trigger 235 of the operation unit 204 in the initial state, FIG. 30 (B) and 3
1(C)に示すようにグリップ部223から最も離れた定位置で保持され、鉗子接続部227は挿入部202の軸方向の移動範囲の最後端位置で保持される。 1 is held at the most distant position from the grip portion 223 as shown in (C), forceps connecting portion 227 is held at the last end position of the movement range of the axial direction of the insertion portion 202. この状態では処置部203の一対のばね部材212a,212b A pair of spring members 212a of the treatment section 203 in this state, 212b
全体が操作部ユニット207の挿入管体222の内腔に挿入され、把持部材214a,214bの後端部が挿入管体222の先端の係合部材224と係合されて両把持部材214a,214b間が閉じた状態で保持される。 Whole is inserted into the lumen of the insertion tube 222 of the operation section unit 207, the gripping members 214a, 214b rear end portion is engaged with the engaging member 224 of the distal end of the insertion tube 222 of the two gripping members 214a, 214b It is held in a state where between closed.
このとき、レバー236a,236bも同様に図30 At this time, lever 236a, 236b is likewise 30
(B)および図31(C)に示す定位置で保持され、ナイフ接続部228は挿入部202の軸方向の移動範囲の最後端位置で保持される。 Is held in place as shown in (B) and FIG. 31 (C), a knife connecting portion 228 is held at the last end position of the movement range of the axial direction of the insertion portion 202. この状態ではナイフユニット205のナイフ部材209は挿入管体222の内腔に挿入された状態で保持される。 Knife members 209 of the knife unit 205 in this state is held in the lumen to the insertion of the insertion tube 222.

【0084】また、凝固鉗子201の使用時にはこの凝固鉗子201の挿入部202が患者の体内に挿入され、 [0084] Also, when using the coagulation forceps 201 inserted portion 202 of the coagulation forceps 201 is inserted into the patient,
この挿入部202の先端の処置部203が体内の処置対象の生体組織の近傍位置まで誘導される。 Treatment portion 203 of the distal end of the insertion portion 202 is guided to a position near the treatment target living tissue in the body. この状態で、 In this state,
図30(B)中で矢印aに示すようにトリガー235の手掛け部35aをグリップ部223側に引き込み操作することにより、処置部203の把持部材214a,21 Figure 30 by the finger receiving portion 35a of the trigger 235 to operate pulling the grip portion 223 side as shown by arrow a in (B), the gripping members 214a of the treatment section 203, 21
4bが次のように開操作される。 4b is opened operated as follows. すなわち、トリガー2 In other words, the trigger 2
35が図31(C)中で回動ピン237を中心に反時計回り方向に回動する動作にともない鉗子接続部227は軸方向前方へ移動する。 35 forceps connecting portion 227 with the operation to rotate in the counterclockwise direction about the pivot pin 237 in FIG. 31 (C) is moved axially forward. これにより、鉗子接続部227 As a result, the forceps connection section 227
と一緒に鉗子ユニット206全体が前方へ押し出し操作されるので、処置部203の把持部材214a,214 Since the entire forceps unit 206 is operated extruded forward along with the gripping of the treatment section 203 members 214a, 214
bが挿入管体222の先端の係合部材224との係合が解かれ、図34(A)および図30(C)に示すように挿入管体222の前方に突出されるばね部材212a, b is released the engagement between the engaging member 224 of the distal end of the insertion tube 222, the spring member 212a which protrudes forward of the insertion tube member 222 as shown in FIG. 34 (A) and FIG. 30 (C),
212bによって把持部材214a,214b間が拡開される。 Gripping member 214a by 212b, between 214b is expanded.

【0085】続いて、拡開した把持部材214a,21 [0085] Subsequently, flared gripping member 214a, 21
4bの間に生体組織Hが挿入される。 Body tissue H is inserted between the 4b. さらに、把持部材214a,214b間に生体組織Hが挿入された後、トリガー235が解放される。 Furthermore, the gripping members 214a, after the living tissue H is inserted between 214b, the trigger 235 is released. このとき、トリガー235 At this time, the trigger 235
は板ばね部材240のばね力によって図34(A)中で矢印bの方向に回動し、鉗子接続部227と一緒に鉗子ユニット206全体が手元側へ移動される。 It is by the spring force of the leaf spring member 240 rotates in the direction of the arrow b in FIG. 34 (A), the entire forceps unit 206 is moved to the proximal side with forceps connecting portion 227. そのため、 for that reason,
ばね部材212a,212b全体が挿入管体222の内部に引き込まれるとともに、把持部材214a,214 The spring member 212a, together with the whole 212b is pulled inside the insertion tube 222, the gripping members 214a, 214
bの後端は挿入管体222の先端の係合部材224に係合して閉じ、図33(A)に示すように把持部材214 b rear end of the closed engages the engagement member 224 of the distal end of the insertion tube 222, the grip as shown in FIG. 33 (A) member 214
a,214b間で生体組織Hが把持される。 a, the living tissue H is grasped between 214b.

【0086】また、生体組織Hを把持部材214a,2 [0086] Further, the living tissue H grasping members 214a, 2
14b間で把持した状態で、鉗子接続部227の電極ピン230a,230bに接続された図示しない高周波電源より電極ピン230a,230b、ガイドロッド22 While gripping between 14b, forceps electrode pins 230a of the connecting portion 227, not shown, connected to 230b high-frequency power source from the electrode pins 230a, 230b, the guide rods 22
9内の導電部材、鉗子ユニット206の電気接点部21 Conductive member 9, the electrical contact portion 21 of the forceps unit 206
9,220、ばね部材212a,212bを順次介して把持部材214a,214bの電極217(a,b)と電極218(a,b)の間にそれぞれ高周波電流が流される。 9,220, spring members 212a, successively through with the gripping member 214a and 212b, respectively a high frequency current is applied between the 214b of the electrode 217 (a, b) and electrode 218 (a, b). これにより、把持部材214a,214b間で把持された生体組織Hは図33(A)に示すように電極2 Thus, the gripping members 214a, the electrode 2 as living tissue H is grasped between 214b shown in FIG. 33 (A)
17a,218a間、電極217b,218b間の部分H 1 ,H 2が凝固し、図33(B)に示すように生体組織H中の血管Bは電極217a,218a間の凝固部分H 1の近傍および電極217b,218b間の凝固部分H 2の近傍の2ケ所で閉塞される。 17a, between 218a, the electrodes 217b, and part H 1, H 2 is solidified between 218b, near the solidified portion H 1 between the vessel B electrodes 217a, 218a of the living tissue H, as shown in FIG. 33 (B) and electrodes 217b, are closed by two locations in the vicinity of the solidified portion of H 2 between 218b.

【0087】さらに、高周波電流の通電によって血管B [0087] In addition, the blood vessel B by high-frequency current
を閉塞させた後、操作部204のレバー236a,23 After closing the lever of the operation unit 204 236a, 23
6bが回動ピン241を中心に図30(B)中で反時計回り方向に回動操作される。 6b is operated to rotate in the counterclockwise direction in FIG. 30 (B) about the pivot pin 241. このとき、レバー236 At this time, the lever 236
a,236bが図34(B)に示す回動位置まで回動される動作にともないナイフ接続部228が挿入部202 a, knife connecting portion 228 is inserted portion 202 with the operation 236b is rotated to the rotational position shown in FIG. 34 (B)
の軸方向前方へ進み、このナイフ接続部228と一緒にナイフユニット205全体が前方へ移動する。 Advances in the axially forward, the entire knife unit 205 is moved forward together with the knife connection portion 228. これにより、ナイフユニット205のナイフ部材209がばね部材212a,212bのスリット216および各把持部材214a,214bのスリット215に沿って前進し、図33(B)に示すように生体組織Hが2ケ所の凝固部分H 1 ,H 2の間で切離される。 Thus, the knife member 209 spring member 212a of the knife unit 205, a slit 216 and each gripping member 214a of the 212b, and advanced along the 214b of the slit 215, the living tissue H is two points, as shown in FIG. 33 (B) disconnected between the solidified portion H 1, H 2.

【0088】また、生体組織Hの切離後、レバー236 [0088] In addition, after the severing of living tissue H, lever 236
a,236bが解放される。 a, 236b is released. このとき、レバー236 At this time, the lever 236
a,236bはばね部材247のばね力によって図34 a, 236b by the spring force of the spring member 247 34
(B)中で矢印cの方向に回動し、ナイフ接続部228 Rotates in the direction of arrow c in (B), the knife connection portion 228
と一緒にナイフユニット205全体が手元側へ移動される。 Entire knife unit 205 with is moved to the hand side. そのため、ナイフユニット205のナイフ部材20 Therefore, the knife member 20 of the knife unit 205
9が挿入管体222の内部に引き込まれ、収納される。 9 is retracted inside the insertion tube 222 is accommodated.

【0089】なお、本実施の形態の凝固鉗子201は図34(A)に矢印で示すように鉗子接続部227を回動させることで処置部203を挿入部202の中心軸に対して任意の回動角度に調節することができる。 [0089] Incidentally, the coagulation forceps 201 of the embodiment Figure 34 any respect to the central axis of the insertion portion 202 of the treatment section 203 by rotating the forceps connecting portion 227 as indicated by an arrow in (A) it can be adjusted to the turning angle.

【0090】また、図35(A),(B)に示すように処置部203の把持部材214a、214b間が一定間隔以上開いている場合、すなわちトリガー235が一定の設定角度以上回動している状態ではリンク部材250 [0090] Further, FIG. 35 (A), and the gripping member 214a of the treatment section 203, if the inter-214b is open more than a certain distance, i.e. the trigger 235 is more than a certain set angle rotation as shown in (B) in a state in which are the link member 250
によって操作ピン249はグリップ部223のピンガイド溝248に沿って各レバー236a,236bのスリット252側に移動されて各レバー236a,236b Operating pin 249 grip part 223 pin guide grooves 248 each lever 236a along the, is moved in the slit 252 side of the 236b in the lever 236a by, 236b
のスリット252に係合される。 It is engaged in the slit 252. そのため、この状態では各レバー236a,236bの回動が操作ピン249 Therefore, each lever 236a in this state, rotation of 236b is operating pin 249
によって阻止されるので、ナイフ部材209の前進動作を確実に防止することができる。 Since is prevented, it is possible to reliably prevent the forward motion of the knife member 209.

【0091】そこで、上記構成のものにあっては次の効果を奏する。 [0091] Thus, the apparatus having the configuration described above produces the following effects. すなわち、本実施の形態の切離機能付き凝固鉗子201では操作部204のトリガー235の操作によって処置部203の把持部材214a、214bを開閉操作して生体組織Hを把持した後、把持部材214 That is, after gripping the living tissue H grasping members 214a of the treatment section 203, the 214b by opening and closing operation by the operation of the trigger 235 of the separating function coagulation forceps 201 in the operation unit 204 of the present embodiment, the gripping member 214
a,214bの電極217(a,b)と電極218 a, 214b of the electrode 217 (a, b) and electrode 218
(a,b)との間への高周波通電によって生体組織Hを凝固止血した状態で、レバー236a,236bを作動させる際に、把持部材214a、214b間が一定間隔以上開いている状態ではリンク部材250によって操作ピン249をグリップ部223のピンガイド溝248に沿って各レバー236a,236bのスリット252側に移動して各レバー236a,236bのスリット25 (A, b) in a state that solidified hemostasis living tissue H by a high-frequency current supply to between the lever 236a, in operating a 236b, the gripping member 214a, the link member in a state where the inter-214b is open more than a certain distance 250 the operation pin 249 along the pin guide grooves 248 of the grip portion 223 by the respective levers 236a, each lever moves the slit 252 side of the 236b 236a, slits 236b 25
2に係合するようにしたので、各レバー236a,23 Since so as to engage the 2, each lever 236a, 23
6bの回動を操作ピン249によって阻止することができ、ナイフ部材209の前進動作を確実に防止することができる。 6b rotation can be prevented by operating pin 249, it is possible to reliably prevent the forward motion of the knife member 209. そのため、一対の把持部材214a、214 Therefore, the pair of gripping members 214a, 214
b間で把持される生体組織Hの厚さが適正な厚さよりも大きい場合に従来のように高周波電流によって生体組織Hを完全に凝固(止血)することができないままの状態で、次の生体組織Hの切離作業が続けて行われるおそれがないので、高周波電流による凝固止血が困難な厚手の生体組織Hの凝固止血不完全状態での切離により意図しない出血の回避が確実かつ容易にできる。 The thickness of the body tissue H which is gripped between b is in a state that can not be completely solidifies (hemostasis) the living tissue H by conventional manner the high-frequency current is greater than an appropriate thickness, the following biological since there is no possibility to be carried out continues separating work organization H, avoidance of unintended bleeding by separating the solidification hemostasis incomplete state of thick biological tissue H coagulation hemostasis is difficult due to the high-frequency current is reliably and easily it can.

【0092】さらに、1本の凝固鉗子201で生体組織Hの止血、切離が行えるため、手術中、血管Bを含む生体組織Hの切離が格別に鉗子を交換すること無く行うことができ、手術時間を短縮させることができる。 [0092] Further, one hemostasis of the living tissue H in coagulation forceps 201, because can be performed dissection during surgery can be performed without disconnecting the body tissue H including vascular B is exceptionally replace the forceps , it is possible to shorten the surgery time.

【0093】また、凝固鉗子201の本体はナイフユニット205と、鉗子ユニット206と、操作部ユニット207とからなる3つの構成ユニットに分解可能なため、通常は洗浄しにくい鉗子201の内部まで容易に洗浄することができる。 [0093] Further, the body knife unit 205 of the coagulation forceps 201, the forceps unit 206, because it can decompose into three component units consisting of the operation section unit 207, usually easily to the inside of the cleaned hard forceps 201 it can be cleaned.

【0094】さらに、切れ味の劣化し易いナイフユニット205のみを適宜交換することで凝固鉗子201の切れ味を維持することができる。 [0094] Further, it is possible to maintain the sharpness of the coagulation forceps 201 by appropriately replacing only easy knife unit 205 and the sharpness degradation. そのため、ナイフユニット205のみを必要に応じて適宜交換した状態で繰り返し凝固鉗子201の本体を使用できるため、使用者のコストを低減することができる。 Therefore, since the repetitive body coagulation forceps 201 can be used in a state of being replaced if necessary only knife unit 205, it is possible to reduce the cost of the user.

【0095】また、鉗子ユニット206の把持部材21 [0095] Further, the gripping members 21 of the forceps unit 206
4a,214bと、操作部ユニット207の挿入管体2 4a, insert tube 2 214b and the operation section unit 207
22の先端の係合部材224を同一材質としたので、摺動による把持部材214a,214bの摩耗を最小限に抑えることができ、摩耗による把持力の低下が回避できる。 Since the tip of the engagement member 224 of 22 was the same material, the gripping members 214a by sliding, it is possible to minimize 214b wear, reduction in gripping force due to the abrasion can be avoided.

【0096】また、図36(A),(B)は本発明の第3の実施の形態を示すものである。 [0096] Further, FIG. 36 (A), (B) shows a third embodiment of the present invention. 本実施の形態は第2 This embodiment second
の実施の形態(図30(A)〜図35(B)参照)の切離機能付き凝固鉗子201の処置部203の構成を次の通り変更したものである。 Embodiment a configuration of the treatment section 203 of the separating function coagulation forceps 201 (FIG. 30 (A) ~ FIG 35 (B) refer) is modified as follows. すなわち、本実施の形態では鉗子ユニット206の管体211の先端部に固定アーム61を突設するとともに、この固定アーム61の先端部に処置部203の2つの把持部材214a,214bのうちの一方の把持部材214bを固定し、他方の把持部材214aのみがばね部材212aによって固定側の把持部材214bに対して離れる方向に拡開するよう支持される構成にしたものである。 That is, while projecting the fixed arm 61 to the distal end of the tubular body 211 of the forceps unit 206 in this embodiment, the two gripping members 214a of the treatment section 203 to the distal end of the fixed arm 61, one of 214b the gripping member 214b is fixed to, it is obtained by a configuration in which only the other of the gripping members 214a is supported to expanding away relative gripping member 214b of the stationary side by the spring member 212a. これ以外の部分は第2の実施の形態と同様である。 Other portions are the same as in the second embodiment.

【0097】そのため、切離機能付き凝固鉗子201の動作時には第2の実施の形態では処置部203の2つの把持部材214a,214bが両開き動作するのに対して、本実施の形態では把持部材214aのみがばね部材212aによって固定側の把持部材214bに対して離れる方向に拡開する方開き動作する点のみが異なり、それ以外の動作は第2の実施の形態と同じである。 [0097] Therefore, the two gripping members 214a of the treatment section 203 in the second embodiment during operation of separating function coagulation forceps 201, relative 214b from operating double door, gripping member 214a in this embodiment only only in that operating open towards widens in the direction away relative gripping member 214b of the stationary side by the spring member 212a is different, other operations are the same as the second embodiment.

【0098】そこで、上記構成のものにあっても第2の実施の形態と同じ効果が得られる他、本実施の形態では特に次の効果を奏する。 [0098] Therefore, in addition to even the above-described structure has the same effect as the second embodiment is obtained, in the present embodiment in particular has the following effects. すなわち、本実施の形態では処置部203の2つの把持部材214a,214bのうちの一方の把持部材214bが固定されているので、例えば膜状組織のように柔らかい生体組織を凝固鉗子201 That is, two gripping of the treatment section 203 in this embodiment member 214a, since one of the gripping member 214b of 214b are fixed, for example, coagulate soft biological tissue as the biological graft forceps 201
で把持する場合に固定されている片方の把持部材214 Of in one that is fixed in the case of gripping the gripping member 214
bですくうように生体組織を捉えてから処置部203の2つの把持部材214a,214b間を閉じる操作を行うことができる。 Two gripping members 214a of the treatment section 203 from catch the living tissue as scoop by b, it is possible to perform the operation of closing the inter 214b. そのため、2つの把持部材214a, Therefore, the two gripping members 214a,
214b間の閉動作時において生体組織を捉える把持部材214bが動くことが少ないので、柔らかい生体組織が把持部材214bから外れることがなく、確実に把持することができる。 Since it is less that the gripping member 214b to capture the biological tissue at the time of the closing operation between 214b moves, without soft biological tissue is disengaged from the gripping member 214b, it can be reliably gripped.

【0099】また、図37(A),(B)は本発明の第4の実施の形態を示すものである。 [0099] Further, FIG. 37 (A), (B) shows a fourth embodiment of the present invention. 本実施の形態は第2 This embodiment second
の実施の形態(図30(A)〜図35(B)参照)の切離機能付き凝固鉗子201の処置部203の構成を次の通り変更したものである。 Embodiment a configuration of the treatment section 203 of the separating function coagulation forceps 201 (FIG. 30 (A) ~ FIG 35 (B) refer) is modified as follows. すなわち、本実施の形態では操作部ユニット207における挿入管体222の係合部材224の先端部に処置部203の2つの把持部材21 That is, the two gripping members 21 of the treatment section 203 to the distal end portion of the engaging member 224 of the insertion tube member 222 in the operation section unit 207 in this embodiment
4a,214bのうちの一方の把持部材214bを固定するとともに、鉗子ユニット206の管体211の先端部に他方の把持部材214aのみをばね部材212aによって固定側の把持部材214bに対して離れる方向に拡開するよう支持される構成にしたものである。 4a, it is fixed to one of the gripping member 214b of the 214b, to the tip end portion of the tubular body 211 of the forceps unit 206 only the other of the gripping members 214a away relative gripping member 214b of the stationary side by the spring member 212a it is obtained by the construction to be supported to expansion. これ以外の部分は第2の実施の形態と同様である。 Other portions are the same as in the second embodiment.

【0100】そのため、切離機能付き凝固鉗子201の動作時には第3の実施の形態(図36(A),(B)参照)と同様に一方の把持部材214aのみがばね部材2 [0100] Therefore, the third embodiment during operation of the separating function coagulation forceps 201 (FIG. 36 (A), (B) refer) as well as one of the gripping members 214a only spring member 2
12aによって固定側の把持部材214bに対して離れる方向に拡開する方開き動作する点のみが異なり、それ以外の動作は第2の実施の形態と同じである。 The only differences are that operates to open toward diverging away relative gripping member 214b of the stationary side by 12a, the other operation is the same as the second embodiment.

【0101】そこで、上記構成のものにあっても第2、 [0101] Thus, the second even to those of the above-described configuration,
第3の実施の形態と同じ効果が得られる他、本実施の形態では特に次の効果を奏する。 Besides the same effect as the third embodiment is obtained, in the present embodiment in particular has the following effects. すなわち、本実施の形態では処置部203が使用者の手に対して常に一定の位置にあるため使用者は容易に生体組織を捉えることが出来る。 That is, in this embodiment used for the treatment portion 203 is always in a fixed position relative to the hand of the user who can be understood easily biological tissue.

【0102】また、図38(A)〜(C)は本発明の第5の実施の形態を示すものである。 [0102] Further, FIG. 38 (A) ~ (C) shows a fifth embodiment of the present invention. 本実施の形態は第2 This embodiment second
の実施の形態(図30(A)〜図35(B)参照)の切離機能付き凝固鉗子201の操作部204の構成を次の通り変更したものである。 Embodiment a configuration of the operation unit 204 of the separating function coagulation forceps 201 (FIG. 30 (A) ~ FIG 35 (B) refer) is modified as follows. すなわち、本実施の形態では第2の実施の形態のナイフ接続部228の操作用の手動式の一対のレバー236a,236bに代えて図38 That is, in this embodiment manually operated pair of levers 236a for manipulation of the knife connection portion 228 of the second embodiment, instead of the 236b 38
(A),(B)に示すようにナイフ接続部228を駆動するための例えばモーター等の駆動手段71によって駆動する電動式の操作レバー72を設け、駆動手段71を高周波電源に電気的に接続するとともに、生体組織のインピーダンスを測定し、その測定結果にもとづいて駆動手段71の駆動の可否を選択するための図示しないスイッチを設ける構成にしたものである。 (A), the provided operating lever 72 of the electric driven by the drive means 71, for example a motor or the like for driving the knife connection portion 228 (B), the electrically connecting drive means 71 to the high-frequency power supply as well as to measure the impedance of the living tissue, it is obtained by a configuration in which a switch (not shown) for selecting whether to drive the driving means 71 based on the measurement result. これ以外の部分は第2の実施の形態と同様である。 Other portions are the same as in the second embodiment.

【0103】そして、本実施の形態では凝固鉗子201 [0103] and, in the present embodiment, coagulation forceps 201
の使用時には第2の実施の形態と同様に生体組織を把持し、通電によって凝固した後に、スイッチをオン操作する。 Of the time use living tissue grasped as in the second embodiment, after solidification by energization, it turns on the switch. このとき、高周波電源より微小電流が流され生体組織のインピーダンスが測定される。 At this time, the impedance of the micro-current from the high frequency power source is passed through the biological tissue is measured. このインピーダンスが一定以上の値であった場合に駆動手段71が駆動され、生体組織が切離される。 Driving means 71 is driven when the impedance is constant over the value, the biological tissue is disconnected.

【0104】そこで、上記構成のものにあっても第2の実施の形態と同じ効果が得られる他、本実施の形態では特に次の効果を奏する。 [0104] Therefore, in addition to even the above-described structure has the same effect as the second embodiment is obtained, in the present embodiment in particular has the following effects. すなわち、本実施の形態ではインピーダンスの基準値を凝固によって生体組織中の血管が閉塞されるときのインピーダンスより大きい値に設定することで閉塞(止血)されていない血管を切離することがなくなり、安全に血管を含む生体組織を切離することが出来る。 That is, in this embodiment prevents that separate the blood vessels which is not closed (hemostasis) by setting the impedance value greater than when the blood vessel of the living tissue is closed by solidifying the reference value of the impedance, it is possible that safely separate the living tissue, including blood vessels.

【0105】なお、本発明は上記実施の形態に限定されるものではない。 [0105] The present invention is not limited to the above embodiment. 例えば、第5の実施の形態(図38 For example, the fifth embodiment (FIG. 38
(A)〜(C)参照)の駆動手段71を駆動させるためのスイッチは特に設けなくても良い。 (A) ~ (C) a switch for driving the drive means 71 of the reference) may not particularly provided.

【0106】この場合には凝固鉗子201の使用時には第2の実施の形態と同様に生体組織を把持した後、鉗子201に生体組織を凝固させるために高周波電源より高周波電流を供給する。 [0106] After the use of the coagulation forceps 201 in this case gripping the same manner the biological tissue and the second embodiment, supplies a high-frequency current from the high frequency power source to coagulate the living tissue to the forceps 201. このとき、高周波電流を供給している間、この電流値より生体組織のインピーダンスを測定し、インピーダンスが一定値以上になると生体組織の凝固用の高周波電流の供給が停止されるとともに、駆動手段71へ電流が供給される。 At this time, while providing a high-frequency current, with the more current to measure the impedance of the living tissue, impedance supply of high frequency current for coagulation comprising the biological tissue to a predetermined value or more is stopped, the drive means 71 current is supplied to. これにより、駆動手段7 Thus, the drive means 7
1によって電動式の操作レバー72が自動的に駆動されるので、ナイフ接続部228を介してナイフユニット2 Since the operation lever 72 of the electric is automatically driven by a knife unit 2 via the knife connection portion 228
05のナイフ部材209を作動させ、生体組織が切離される。 The knife member 209 of 05 is operated living tissue is disconnected.

【0107】そこで、上記構成のものにあっては第5の実施の形態と同様にインピーダンスの基準値を設定することで使用者は血管を含む生体組織を出血させること無く、容易かつ安全に切離することが出来る。 [0107] Thus, the apparatus having the above configuration the user by setting the reference value of the impedance in the same manner as the fifth embodiment is not possible to bleed the living tissue containing blood vessels, easily and safely switch You can be away.

【0108】また、凝固鉗子201の使用時には生体組織の凝固止血作業に続いて生体組織の切離作業が自動的に行われるため、時間のロスがなく、より一層手術時間が短縮される。 [0108] Further, since the separating work of the living tissue following the coagulation hemostasis working of the living tissue during use of the coagulation forceps 201 is performed automatically, without loss of time, are more reduced even more operating time.

【0109】[付記] 1. [0109] [Appendix] 1. 体腔内に挿入される挿入部を有した操作部本体と、 An operation portion body having an insertion portion to be inserted into a body cavity,
前記挿入部の先端付近に設けられた組織を把持する通電可能な一対の把持手段から成る凝固部と、前記凝固部で把持、凝固した組織を切離する切離手段と、前記操作部本体側に設けられ前記凝固部の把持手段を開閉操作する凝固部開閉操作手段と、前記操作部本体側に設けられ前記切離手段を操作する切離操作手段と、凝固部開閉操作手段と切離操作手段のいずれか一方を選択してその操作手段の動作だけを行うことが許容される操作選択手段とを具備したことを特徴とする切離機能付凝固鉗子。 A solidified portion comprising a pair of gripping means which can be energized to grip the tissue provided in the vicinity of the distal end of the insertion portion, gripped by the solidified portion, and a separating means for dissecting the coagulated tissue, the operation portion main body wherein the solidified portion opening and closing means for opening and closing the gripping means of solidified portion, and separating operation means for operating said separating means provided in the operation portion main body side, solidified portion opening and closing means and the separating operation provided coagulation forceps with the separating function, characterized in that to perform the operation of only the operation unit is provided with an operation selection means is permitted by selecting one of the means.

【0110】2. [0110] 2. 前記操作選択手段は切離手段の動作を妨げ、凝固部の把持動作を可能にする第1位置と、凝固部の把持動作を妨げ、切離手段の動作を可能にする第2 Wherein interfere with operation selecting means operation of separating means, hinder a first position permitting gripping action of the solidified portion, the gripping action of the solidified portion, the second to enable the operation of the separating means
位置を選択することを特徴とする付記第1項に記載の切離機能付凝固鉗子。 Separating function with coagulation forceps according to Additional paragraph 1, wherein selecting a position.

【0111】3. [0111] 3. 前記操作選択手段は前記操作部本体に取着され凝固部開閉操作手段の移動部材に係脱するフック部材と、前記操作部本体に旋回可能に取着され一端部を前記フック部材から退避させる係脱アーム端部とし他端部を前記切離操作手段の操作移動を規制するストップアーム端部としてなり回動することにより凝固部開閉操作手段と切離操作手段に対しての規制を選択する選択レバーとを具備したことを特徴とする付記第1,2項に記載の切離機能付凝固鉗子。 Engaging said operation selection means for retracting the hook member engages and disengages the moving member attached to solidified portion opening and closing means to the operation portion main body, one end is attached pivotably to the operation portion main body from said hook member selection for selecting regulations against solidified portion opening and closing means and separating operation means by turning it as a stop arm end and the other end to a de-arm end to restrict the operation movement of the separating operation means separating function with coagulation forceps according to Additional first and second paragraph which is characterized by comprising a lever.

【0112】4. [0112] 4. 前記フック部材は凝固部開閉操作手段を操作するハンドル側に形成した孔に係止する鉤部を設け、前記選択レバーの係脱アーム端部によって押されることにより孔に係止する位置から鉤部を退避し、ストップアーム端部が切離操作手段の動作を阻止する一方、前記選択レバーの係脱アーム端部が前記フック部材を解除したとき、ストップアーム端部が切離操作手段の動作を許容する位置に退避することを特徴とする付記第3項に記載の切離機能付凝固鉗子。 Hook from a position where the hook member is a hook which locks into a hole formed in the handle side for manipulating the freezing unit opening and closing means is provided to lock the hole by being pushed by the disengaging arm end of the selection lever save the, while the stop arm ends to prevent the operation of the separating operation means, when the disengagement arm end of the selection lever is released the hook member, the stop arm ends the operation of the separating operation means coagulation forceps with separating function according to note paragraph 3, characterized in that retracted to permit located.

【0113】5. [0113] 5. 前記把持手段は電気的絶縁材から成る把持部材と、導電性材質から成る電極とで構成されており、前記電極は把持面に臨む電極面以外が前記把持部材に覆われていることを特徴とする付記第1乃至4項に記載の切離機能付凝固鉗子。 It said gripping means comprises a gripping member made of electrically insulating material, an electrode made of a conductive material is composed of, and wherein the electrode other than the electrode surface facing the gripping surface is covered with the gripping member separating function with coagulation forceps according to the first to fourth term appended to.

【0114】6. [0114] 6. 前記一対の把持手段を構成している前記電極は互いに絶縁されているバイポーラ電極である付記第4項に記載の切離機能付凝固鉗子。 It said pair of electrodes gripping constitute means disconnecting function with coagulation forceps according to Additional item 4 is a bipolar electrode are insulated from each other.

【0115】7. [0115] 7. 体腔内に挿入される挿入部と、この挿入部の先端部に配置された処置部と、前記挿入部の基端部に連結された操作部とを備え、通電可能で、開閉可能な一対の把持部材によって生体組織を把持凝固する把持凝固手段と、この把持凝固手段で把持凝固した生体組織を切離するための切離手段とが前記処置部に配設されるとともに、前記把持部材を開閉操作する開閉操作手段と、前記切離手段を操作する切離操作手段とが前記操作部に配設された切離機能付き凝固鉗子において、前記把持部材の動作状態に応じて前記切離手段の切離動作を制御する切離動作制御手段を設けたことを特徴とする切離機能付き凝固鉗子。 An insertion portion to be inserted into a body cavity, the insertion portion and arranged treatment portion at the distal end, and a the insertion portion operation section connected to the proximal end of the, possible energized, open the pair a gripping solidifying means for gripping coagulating the living tissue by the gripping member, with a separating means for for dissecting the grip coagulated living tissue in this gripping coagulation means is disposed in said treatment section, open and close the gripping member and opening and closing means for operating, in the disconnection function coagulation forceps in which the separating operation means disposed in the operating unit for operating the separating means, the separating means in accordance with the operating state of said gripping member separating function coagulation forceps, characterized in that a disconnection operation control means for controlling the separating operation.

【0116】(付記7の従来の技術) 従来からこの種の切離機能と凝固機能とを合わせ持つ鉗子としては、例えばUSP5,445,638や、USP5,458,598に示されているように、通電、開閉可能な一対の把持部材からなる高周波凝固部と、該高周波凝固部に設けられたスリットに沿って移動するナイフ等の切離手段を備えている。 [0116] As the (prior art according to Note 7) forceps having both a conventionally this type separating function and coagulation function, for example USP5,445,638 and, as shown in USP5,458,598, energized, closing a high frequency coagulation unit comprising a pair of gripping members capable, and a separating means such as a knife that moves along the slit provided in the high-frequency coagulation section.

【0117】これらの凝固鉗子では通常、切離しようとする血管を含む生体組織を、把持部材で把持し、高周波電流を通電して凝固止血した後に、その生体組織の凝固部分を把持した状態で、切離手段を作動させ、切離を行うようになっている。 [0117] Typically in these coagulation forceps, a biological tissue containing blood vessels and disconnecting, gripped by the gripping member, after coagulation hemostasis by applying a high frequency current, while holding the solidified portion of the living tissue, the separating means is actuated, it is adapted to perform dissection. この場合、一本の鉗子で凝固による生体組織の止血と、生体組織の切離とを連続的に行うことで所望の生体組織部分を出血させること無く、短時間で切離することができるようになっている。 In this case, the hemostasis of a living tissue by coagulation with a single forceps, without causing bleeding of the desired living tissue portions and severing of body tissue in carried out continuously, so that it is possible for dissecting a short time It has become.

【0118】また、従来の凝固鉗子では体内に挿入される挿入部の基端部に連結された手元側の操作部に、生体組織を把持する凝固電極を兼ねた把持部材の開閉操作を行う開閉操作手段と、その把持した生体組織をナイフ等の切離手段によって切離する切離操作手段とがそれぞれ独立に設けられている。 [0118] Further, the proximal-side operation section connected to the proximal end of the insertion portion to be inserted into the body in the conventional coagulation forceps, to open and close operation of the gripping member which also serves as a coagulation electrode to grip the biological tissue closing an operation unit, and separating operation means for dissecting the separating means such as a knife and the grasped living tissue is provided independently. そして、凝固鉗子の使用時には把持部材の開閉操作手段と、切離操作手段とは手元側の操作部で互いに関連なく個別的に独立して操作するようになっている。 And, when using the coagulation forceps and opening and closing means of the gripping member is adapted to operate independently individually rather related to each other at the operating portion of the proximal side of the separating operation means.

【0119】(付記7の解決しようとする課題) ところで、上記従来構成のものにあっては凝固鉗子の一対の把持部材間で把持凝固する生体組織の厚さを制限するものは格別に設けられていないので、一対の把持部材間が最大開き幅に拡開された状態まで生体組織を把持できるようになっている。 [0119] (Problem to be Solved in Appendix 7) Incidentally, the apparatus having the above-described conventional structure provided particularly is intended to limit the thickness of the gripping coagulating biological tissue between a pair of gripping members of the coagulation forceps not so between a pair of gripping members are enabled to grip the biological tissue to a state of being expanded to a maximum opening width. しかしながら、一対の把持部材間で把持される生体組織の厚さが厚い場合には高周波電流を通電した際の通電抵抗が大きくなり、電流密度が低くなるため、一対の把持部材間で把持される生体組織の厚さが厚ければ厚いほど高周波電流によって凝固止血することは困難となる。 However, the energization resistance when the high-frequency current has been conducted becomes large when the large thickness of the living tissue to be grasped between a pair of gripping members, since the current density decreases, is gripped between a pair of gripping members the thickness of the living tissue is coagulated hemostasis by thicker high-frequency current if thicker becomes difficult. そのため、一対の把持部材間で把持される生体組織の厚さが適正な厚さよりも大きい場合には高周波電流によって生体組織を完全に凝固止血することができないので、このままの状態で、次の生体組織の切離作業を続けて行った場合には生体組織から出血させてしまうおそれがある。 Therefore, it is impossible to completely solidified hemostasis living tissue by high frequency current in the case is greater than the appropriate thickness The thickness of the living tissue is gripped between a pair of gripping members, in this state, the following biological when so now the severing work organization there is a possibility that bled from the living tissue.

【0120】また、凝固鉗子の使用時には一対の把持部材間で実際に把持した生体組織が高周波電流によって凝固止血可能な厚さかどうかは術者の勘によって判断されているのが実情である。 [0120] Also, when using the coagulation forceps is fact is actually grasped living tissue between a pair of gripping members whether coagulation hemostasis possible thickness by the high-frequency current is determined by the intuition of the operator. そのため、一対の把持部材間で把持される生体組織の厚さが適正な厚さよりも大きい場合もあり、一対の把持部材間で実際に把持された生体組織が高周波電流によって凝固止血できず、生体組織から出血を生じた場合には別途の止血操作が必要となるため、手術時間を短縮するという当初の目的が果たせなくなる問題がある。 Therefore, there is also greater than a thickness of the proper thickness of the living tissue is gripped between a pair of gripping members, actually grasped living tissue between a pair of gripping members can not be solidified hemostasis by high frequency current, the living body because it requires additional hemostasis operation in case any bleeding from the tissue, the original purpose of shortening the operation time there is a problem no longer fulfill.

【0121】また、術者が凝固鉗子を操作した際に、例えば、一対の把持部材間で生体組織を確実に把持する前に、不用意に切離手段を作動させるという誤操作を行った場合には、誤って作動させた切離手段によって凝固されていない生体組織を切離して出血させてしまうおそれがある。 [0121] Further, when the operator operates the coagulation forceps, for example, prior to reliably grasp the living tissue between a pair of gripping members, when performing an erroneous operation that is inadvertently actuate the separating means may thus bled detach not coagulated by separating means is actuated by mistake biological tissue fear. そのため、術者は一対の把持部材間で生体組織を把持し、凝固する作業中、切離手段を不用意に作動させないように充分に注意を払いながらその作業を行う必要があるので、凝固鉗子の操作性の向上を図るうえで問題がある。 Therefore, the operator grips the living tissue between a pair of gripping members, working to solidify, it is necessary to perform the work while paying sufficient attention not to inadvertently actuate separating means, coagulation forceps there is a problem in terms of improving the operability.

【0122】(付記7の目的) 生体組織の把持、凝固止血作業中の誤操作を防止して安全性が高く、操作性のよい切離機能付き凝固鉗子を提供することにある。 [0122] grip the living tissue (the purpose of Appendices 7), more secure to prevent erroneous operation during solidification hemostasis working to provide a good separating function coagulation forceps operability.

【0123】(付記7の作用) 生体組織の把持、凝固止血作業時には開閉操作手段によって把持部材を開閉操作して生体組織を把持した後、通電によって凝固止血した状態で、切離操作手段を作動させる。 [0123] grip (Note action of 7) biological tissue, after gripping the body tissue gripping members to open and close operation by opening and closing means at the time of solidification hemostasis work, while coagulation hemostasis by energization, operates the severing operating means make. このとき切離動作制御手段によって把持部材の動作状態に応じて切離手段の切離動作が制御され、把持凝固した生体組織の厚さが一定以下であれば切離動作が行われて生体組織の凝固止血部分が切離されるようになっている。 Separating operation of the separating means in accordance with the operating state of the gripping member by the time disconnection operation control means is controlled, gripped solidified if it is below a certain thickness of the living tissue separating operation performed by a biological tissue coagulation hemostasis portion is adapted to be disconnected.

【0124】(付記7の効果) 把持部材の動作状態に応じて切離手段の切離動作を制御する切離動作制御手段を設けたので、生体組織の把持、凝固止血作業中の誤操作を防止して安全性が高く、操作性の高い切離機能付き凝固鉗子を提供することができる。 [0124] is provided with the disconnection operation control means for controlling the separating operation of the separating means in accordance with the operating state (Note 7 Effect) gripping member, preventing gripping of the biological tissue, an erroneous operation during solidification hemostasis working high safety and can provide high operability separating function coagulation forceps.

【0125】8. [0125] 8. 体腔内に挿入される挿入部を有する操作部本体と、該挿入部の遠位端に配置された体腔内にて組織を把持凝固する通電可能な一対の開閉可能な把持部材からなる動作部と、把持凝固した組織を切離するための切離手段と、前記操作部本体上に設けられた前記把持部材を開閉操作する動作部操作手段と、前記操作部本体上に設けられた前記切離手段を操作する切離操作手段とを有する鉗子において、前記動作部の状態に応じて切離動作の可否を制御する切離動作制御手段が設けられていることを特徴とする切離機能付き凝固鉗子。 An operation unit main body having an insertion portion to be inserted into a body cavity, an operation section comprising a pair of openable gripping member capable energized to grip coagulate tissue in the body cavity disposed at the distal end of the insertion portion a separating means for for dissecting the grip coagulated tissue, an operation portion operating means for opening and closing the gripping member provided in the operation portion on the body, the cutoff piece provided on the operation portion on the body in forceps and a separating operation means for operating the means, with the separating function, characterized in that the disconnection operation control means for controlling whether the disconnection operation according to the state of the operation portion is provided coagulated forceps.

【0126】9. [0126] 9. 前記動作部は前記挿入部内に進退可能なよう挿通されたロッドの先端に配置された一対の弾性部材と、前記ロッドが後退したとき前記挿入部の先端に係合するよう前記弾性部材の各先端に取り付けられた一対の把持部材とからなっていることを特徴とする付記項8に記載の切離機能付き凝固鉗子。 Each front end of the resilient member such that the operation portion is to be engaged with the distal end of the insertion portion when the pair of elastic members disposed at the distal end of the rod is inserted so as to be retractable into said insertion portion, said rod is retracted separating function coagulation forceps according to item 8, characterized in that has a pair of gripping members attached to.

【0127】10. [0127] 10. 前記把持部材は絶縁材質からなる把持部材本体と、該把持部材本体に設けられた電極とからなることを特徴とする付記項8または9に記載の切離機能付き凝固鉗子。 Said gripping member gripping member bodies and, separating function coagulation forceps according to item 8 or 9, characterized in that it consists of an electrode provided on the gripping member body made of an insulating material.

【0128】11. [0128] 11. 前記把持部材本体は前記切離手段が挿通されるスリットを有し、前記電極は該スリットの両側に設けられていることを特徴とする付記項10に記載の切離機能付き凝固鉗子。 The gripping member body has a slit in which the separating means is inserted, the separating function coagulation forceps according to Additional Item 10, wherein the electrode is characterized in that provided on both sides of the slit.

【0129】12. [0129] 12. 前記把持部材本体の一方に設けられた電極と、他方の把持部材本体に設けられた電極は互いに絶縁された双極電極として構成されていることを特徴とする付記項11に記載の切離機能付き凝固鉗子。 An electrode provided on one of the gripping member body, with the separating function according to item 11, characterized in that the electrodes provided on the other of the gripping member bodies that are configured as bipolar electrodes insulated from each other coagulation forceps.

【0130】13. [0130] 13. 前記切離動作制御手段が前記操作部本体に設けられていることを特徴とする付記項8から1 Appendixes claim 8, characterized in that the disconnection operation control means is provided in the operation portion main body 1
2のいずれかに記載の切離機能付き凝固鉗子。 Disconnecting function with coagulation forceps according to any one of 2. 14. 14. 前記切離動作制御手段が前記動作部操作手段に連動して前記切離操作手段に干渉し作動を妨げる第1の範囲と前記切離操作手段との干渉を解除し作動を可能にする第2の範囲を移動する干渉部材であることを特徴とする付記項13に記載の切離機能付き凝固鉗子。 The second of the disconnection operation control means allows the release operating interference between the first range and the separating operation means that prevent interference to operate the separating operation unit in conjunction with the operation portion operating means separating function coagulation forceps according to Additional Item 13, characterized in that the interference member to move the range.

【0131】15. [0131] 15. 前記干渉部材の位置は前記一対の把持部材の開き幅によって決められるよう構成されていることを特徴とする付記項14に記載の切離機能付き凝固鉗子。 Separating function coagulation forceps according to Additional Item 14 of the position of the interference member is characterized by being configured to be determined by the opening width of the pair of gripping members.

【0132】16. [0132] 16. 前記切離動作制御手段は前記干渉部材と、該干渉部材と動作部操作手段との間に配設されたリンク機構と、前記操作部本体に前記干渉部材が摺動するスリットからなることを特徴とする付記項8から13 Wherein said disconnection operation control means and said interference member, and a link mechanism disposed between the interference members and the operation portion operating means, said interference member to the operation portion main body consists of a slit which slide from Additional Item 8, 13
のいずれかに記載の切離機能付き凝固鉗子。 Disconnecting function with coagulation forceps according to any one of the.

【0133】(付記項8〜16の解決課題) 従来の凝固鉗子では組織を把持する凝固電極を兼ねた把持部材の開閉操作と、その把持した組織を切離する操作は手元側において個別的に設けた各操作手段によって互いに関連なく独立して作動するように構成されている。 [0133] (solving problems according to Note 8-16) and opening and closing operation of the gripping member which also serves as a coagulation electrode to grasp tissue in the conventional coagulation forceps, the operation for dissecting the grasped tissue individually in proximal It is configured to operate associated not independently of each other by the operation means provided. また、把持凝固する組織の厚さを制限するものは前記把持部材の開き幅しかなく実際に把持した組織が高周波電流によって凝固止血可能な厚さなのかは術者の勘によって判断される。 Also, limiting the thickness of the tissue to be gripped coagulation gripping opened only without actually the width of the gripping member organizations whether coagulation hemostasis possible thickness by the high-frequency current is determined by the intuition of the operator. このため、例えば、術者が組織を確実に把持する前に、不用意に切離手段を作動させると、組織を切離して出血させてしまう可能性があり、術者は組織を把持する間、切離手段を不意に作動させないよう気を使って作業を行わなければならず、必ずしも操作性がよいものではなかった。 During this reason, for example, before the surgeon to securely grip the tissue, when inadvertently actuate the separating means, there is a possibility that bled disconnect the tissue, the surgeon grasping tissue, must be carried out the work with care so as not to operate unexpectedly the severing means, it was not necessarily a good operability. また、組織が厚ければ厚いほど高周波電流によって凝固することは困難となる(抵抗が大きくなり電流密度が低くなるため)ため厚手の組織を完全に凝固(止血)できずに切離を行い出血をさせてしまう可能性があり、出血を生じた場合別途止血操作が必要となるため必ずしも手術時間を短縮するという当初の目的が果たせるとはいえなかった。 Also, completely solidified bleeding performs dissection unable (hemostasis) tissue is difficult to coagulate the thicker high-frequency current If thicker (for current density resistance increases is lower) for thick tissue There is a possibility that by a, not be said play is original purpose that necessarily shorten the operating time because it requires additional hemostasis operation when caused bleeding.

【0134】(付記項8〜16の目的) 本発明は前述した課題に着目してなされたものであり、その目的とするところは組織の把持、凝固止血中において不用意に切離手段を動作させた場合や、高周波電流によって凝固止血が困難である厚手の組織を無理に切離してしまった場合に生じる無用な出血の回避が容易かつ確実にできる操作性のよい切離機能付き凝固鉗子を提供することにある。 [0134] (Note purpose of 8-16) the present invention has been made in view of the problems described above, the gripping of the tissue it is an object of inadvertently operating the separating means during solidification hemostasis If you were, provides unnecessary bleeding easily and good separating function coagulation forceps operability which can reliably avoid occurring when had forcibly disconnect a thick tissue is difficult coagulation hemostasis by the high-frequency current It is to.

【0135】(付記項8〜16の課題解決手段) 本発明は、体腔内に挿入される挿入部を有した操作部本体と、前記挿入部の遠位端に配置された体腔内にて組織を把持凝固する通電可能な一対の開閉可能な把持部材からなる動作部と、把持凝固した組織を切離するための切離手段と、前記操作部本体上に設けられた前記把持部材を開閉操作する動作部操作手段と、前記操作部本体上に設けられた前記切離手段を操作する切離動作操作手段とを有する鉗子において、前記動作部を構成する一対の把持部材間の開き幅がある一定の幅以上であるときは切離動作を阻止する切離動作制御手段が設けられていることを特徴とする切離機能付き凝固鉗子である。 [0135] The present invention (SUMMARY OF Additional Item 8-16) includes an operation portion main body having an insertion portion to be inserted into a body cavity, tissue in the body cavity disposed at a distal end of the insertion portion and a gripping coagulation operation section comprising a pair of openable gripping member capable energization of the gripping coagulated and separating means for tissue for dissecting, opening and closing the gripping member provided in the operation portion on the body an operation portion operating means for, in a forceps and a separating operation operating means for operating said separating means provided in the operation portion on the body, there is a opening width between the pair of gripping members constituting the operation portion when it is over a certain width is disconnection function coagulation forceps, characterized in that the disconnection operation control means for preventing disconnection operation is provided. そして、前記動作部操作手段によって前記把持部材を開閉し組織を把持後、通電によって凝固止血し、前記切離操作手段を作動させる。 After gripping the gripping members to open and close the tissue by the operation portion operating means, it solidified hemostasis by energization, actuating the disconnection operation means. このとき把持凝固した組織の厚さが一定以下であれば切離動作が行われ組織の凝固止血部分が切離される。 In this case the thickness of the gripped coagulated tissue coagulation hemostasis portion of constant equal to or less than the separating operation is performed tissue is disconnected.

【0136】(付記項8〜16の効果) 本発明によれば、術者は、組織の把持、凝固止血中において不用意な切離手段の作動や、高周波電流による凝固止血が困難な厚手の組織の凝固止血不完全状態での切離により意図しない出血の回避が確実かつ容易にできる安全性の高い切離機能付き凝固鉗子を提供することができる。 [0136] According to the present invention (the effect of Additional Item 8-16), the operator, the tissue grasping, operation or inadvertent disconnection means during solidification hemostasis, due to the high-frequency current coagulation hemostasis difficult thick it is possible to provide a high separating function coagulation forceps avoid unintended bleeding by separating it safety that can be reliably and easily in the coagulation hemostasis incomplete tissue.

【0137】17. [0137] 17. 体腔内に挿入される挿入部を有する操作部本体と、該挿入部の遠位端に配置された体腔内にて組織を把持凝固する通電可能な一対の把持部材からなる動作部と、把持凝固した組織を切離するための切離手段と、前記操作部本体上に設けられた前記把持部材を開閉操作する動作部操作手段と、前記操作部本体上に設けられた前記切離手段を操作する切離操作手段とを有する鉗子において、前記把持部材の一方が拡開しないよう固定されていることを特徴とする切離機能付き凝固鉗子。 An operation unit main body having an insertion portion to be inserted into a body cavity, an operation section composed of a pair of gripping members capable energized to grip coagulate tissue in the body cavity disposed at the distal end of the insertion section, gripping coagulation operate with separating means for tissue for dissecting the, an operation portion operating means for opening and closing the gripping member provided in the operation portion on the body, said disconnection means provided in the operation portion on the body in forceps and a separating operation means for, separating function coagulation forceps, characterized in that one of said gripping member is secured against expansion.

【0138】18. [0138] 18. 前記動作部は前記挿入部内に進退可能なよう挿通されたロッドの先端に配置された弾性部材と、前記ロッドが後退したとき前記挿入部の先端に係合し閉じる前記弾性部材の先端に取り付けられた一つの把持部材と、前記ロッドの先端に固定された一つの把持部材とからなっていることを特徴とする付記項17に記載の切離機能付き凝固鉗子。 Is the operating unit attached to the leading end of the elastic member disposed at the distal end of the insertion rods allow advance and retreat in the insertion portion, said resilient member engages close to the distal end of the insertion portion when the rod is retracted and one gripping member, the separating function coagulation forceps according to Additional Item 17, characterized in that consists the gripping members one of which is fixed to the distal end of the rod.

【0139】19. [0139] 19. 前記操作部は前記挿入部内に進退可能なよう挿通されたロッドの先端に配置された弾性部材と、前記ロッドが後退したとき前記挿入部の先端に係合し閉じる前記弾性部材の先端に取り付けられた一つの把持部材と、前記挿入部の先端に固定された一つの把持部材とからなっていることを特徴とする付記項17に記載の切離機能付き凝固鉗子。 Is the operating unit is attached to the tip of the elastic member disposed at the distal end of the insertion rods allow advance and retreat in the insertion portion, said resilient member engages close to the distal end of the insertion portion when the rod is retracted one of the gripping member and, separating function coagulation forceps according to Additional Item 17, characterized in that consists the gripping members one of which is fixed to the distal end of the insertion portion was.

【0140】20. [0140] 20. 前記把持部材は絶縁材質からなる把持部材本体と、該把持部材本体に設けられた電極とからなることを特徴とする付記項17から19のいずれかに記載の切離機能付き凝固鉗子。 Said gripping member gripping member bodies and, separating function coagulation forceps according to any one of Additional Item 17 19, characterized in that it consists of an electrode provided on the gripping member body made of an insulating material.

【0141】21. [0141] 21. 前記把持部材本体は前記切離手段が挿通されるスリットを有し、前記電極は該スリットの両側に設けられていることを特徴とする付記項20に記載の切離機能付き凝固鉗子。 The gripping member body has a slit in which the separating means is inserted, the separating function coagulation forceps according to Additional Item 20, wherein the electrode is characterized in that provided on both sides of the slit.

【0142】22. [0142] 22. 前記把持部材本体の一方に設けられた電極と、他方の把持部材本体に設けられた電極は互いに絶縁された双極電極として構成されていることを特徴とする付記項21に記載の切離機能付き凝固鉗子。 Wherein the gripping member electrode provided on the body, with the separating function according to item 21, wherein the other of the gripping members electrode provided on the body are configured as bipolar electrodes insulated from each other coagulation forceps.

【0143】(付記項17〜22の従来技術) 凝固鉗子では一対の把持部材が挿入部内を進退可能なよう挿通されているロッドの先端に取り付けられた弾性部材によって共に拡開し、ロッドが後退したとき該把持部材の後端付近が前記挿入部の先端に係合して閉じるものである。 [0143] (prior art according to Note 17-22) In the coagulation forceps together expanded by an elastic member attached to the tip of the rod in which a pair of gripping members are inserted so that can advance and retreat the insertion portion, the rod is retracted near the rear end of the gripping member is of closing engage the distal end of the insertion portion when the.

【0144】(付記項17〜22の解決課題) 従来の凝固鉗子では組織を把持する一対の把持部材が共に開閉可能となっている。 [0144] a pair of gripping members for gripping the tissue in the conventional coagulation forceps (solving problems according to Note 17-22) are both can be opened and closed. このため、これらの鉗子が使用対象とする組織の多くは血管を含む膜状の柔らかい組織(例えば腸間膜)を把持しようとした場合、2つの把持部材が組織に対して動くため柔らかい組織は把持部材から逃げ易いため組織の把持が容易とはいえず必ずしも操作性がよいものではなかった。 Therefore, when many organizations that these forceps and used subject attempts to grip the film-like soft tissues, including blood vessels (e.g. mesenteric), soft tissue because the two gripping members is moved relative to the tissue is not be said to be easy to grasp tissue for easy escape from the grip member it was not necessarily good operability.

【0145】(付記項17〜22の目的) 本発明は前述した課題に着目してなされたものであり、その目的とするところは腸間膜等の血管を含む柔らかい膜状の組織の把持が容易にできる操作性のよい切離機能付き凝固鉗子を提供することにある。 [0145] (object of Additional Item 17-22) The present invention has been made in view of the problems described above, the gripping soft membranous tissues, including vascular mesenteric like and has an object and to provide a good separating function coagulation forceps operability which can easily.

【0146】(付記項17〜22の課題解決手段) 本発明は、体腔内に挿入される挿入部を有する操作部本体と、前記挿入部の遠位端に配置された体腔内にて組織を把持凝固する通電可能な一対の把持部材からなる動作部と、把持凝固した組織を切離するための切離手段と、前記操作部本体上に設けられた前記把持部材を開閉操作する動作部操作手段と、前記操作部本体上に設けられた前記切離手段を操作する切離動作操作手段とを有する鉗子において、前記把持部材の一方が拡開しないよう固定されており、他方が拡開可能なよう配置されていることを特徴とする切離機能付き凝固鉗子である。 [0146] The present invention (SUMMARY according to Note 17-22) includes an operation portion main body having an insertion portion to be inserted into a body cavity, tissue in the body cavity disposed at a distal end of the insertion portion a grip solidification operation unit consisting energizable pair of gripping members for gripping coagulated and separating means for tissue for dissecting, operation section operation for opening and closing the gripping member provided in the operation portion on the body means and, in the forceps and a separating operation operating means for operating said separating means provided in the operation portion on the body, one of which is fixed so as not to spreading of the gripping member, the other can expanded it is separating function coagulation forceps, characterized in being arranged such as. そして、前記動作部操作手段によって前記把持部材のうちの一方を拡開させ、切離したい組織を前記把持部材のうちの他方で捉えた後に前記動作部操作手段によって可動の把持部材を閉じ組織を把持する。 Then, the to one spreading a of the gripping member, disconnect wants tissue gripping the other hand close the gripping member movable by the operating portion operating means after the captured tissue of said gripping member by the operation portion operating means to. 組織把持後の作用は付記項1〜 Action after tissue grasping the appended claim 1
9と同様。 Similar to the 9.

【0147】(付記項17〜22の効果) 本発明によれば、腸間膜のような血管を含む柔らかい膜状の組織の把持が容易にできる簡便な構造の切離機能付き凝固鉗子を提供することができる。 [0147] According to the present invention (the effect of Additional Item 17-22), providing a soft membranous separating function coagulation forceps simple structure that gripping can be easily tissues, including blood vessels, such as mesentery can do.

【0148】 [0148]

【発明の効果】以上説明したように本発明によれば、術者は、組織の把持、凝固止血中において不用意に切離手段を動作させて出血させるようなことが回避でき、組織の把持、凝固止血、組織の切離の各動作を手順通り、確実に操作することができる操作性のよい切離機能付凝固鉗子を提供することができる。 According to the present invention as described in the foregoing, the operator, gripping the tissue, inadvertently can be avoided that such are bled by the separating means is operated during the coagulation hemostasis, grasping tissue , coagulation hemostasis, following the procedures of each operation of the severing of the tissue, it is possible to provide a reliably operating coagulation forceps with good operability separating function can be. 組織把持後は操作選択手段によって切離動作を選択しなければ組織を切離することができないため、不用意に組織を切離して出血させることがない。 Because after the tissue gripped not be able for dissecting the tissue to be selected the severing operation by the operation selection unit, is not to bleed detach accidentally tissue. また、切離動作が選択されている場合、切離手段は作動が可能であるが、組織を把持するとしても、組織を把持できないため、誤って組織を切離してしまう虞がない。 Also, if the severing operation has been selected, although separating means is capable of operating, tissue even gripping the, can not grasp the tissue, there is no fear that disconnect accidentally tissue.

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

【図1】 本発明の一実施形態に係る外科用鉗子の全体の外観を示し、(a)はその側面図、(b)はその平面図。 [1] shows the overall appearance of the forceps according to an embodiment of the present invention, (a) is a side view thereof, (b) is a plan view.

【図2】 前記外科用鉗子をユニットに分解した状態の構成を示す説明図。 FIG. 2 is an explanatory diagram showing a configuration of a disassembled state in the unit the forceps.

【図3】 (a)は開閉操作体の一部断面図、(b)は切離手段の一部断面図。 3 (a) is partial cross-sectional view of the handling members, (b) is partial cross-sectional view of the separating means.

【図4】 (a)は把持部本体の平面図、(b)は把持部本体の側面図。 4 (a) is a plan view of the gripper body, (b) is a side view of the gripper body.

【図5】 前記把持部本体の拡大した断面図。 Figure 5 is an enlarged cross-sectional view of the gripper body.

【図6】 前記把持部本体の把持部材の断面図。 6 is a cross-sectional view of the gripping member of the gripper body.

【図7】 図6中A−A線に沿う前記把持部材の断面図。 7 is a cross-sectional view of the gripping member along in FIG 6 A-A line.

【図8】 図6中B−B線に沿う前記把持部材の断面図。 Figure 8 is a cross-sectional view of the gripping member along in FIG 6 B-B line.

【図9】 図5中A−A線に沿う把持部本体の部分の断面図。 FIG. 9 is a cross-sectional view of a portion of the gripper body along in FIG 5 A-A line.

【図10】 図5中B−B線に沿う把持部本体の部分の断面図。 FIG. 10 is a cross-sectional view of a portion of the gripper body along in FIG 5 B-B line.

【図11】 図5中C−C線に沿う把持部本体の部分の断面図。 FIG. 11 is a cross-sectional view of a portion of the gripper body along in FIG 5 C-C line.

【図12】 図5中D−D線に沿う把持部本体の部分の断面図。 FIG. 12 is a cross-sectional view of a portion of the gripper body along in FIG 5 D-D line.

【図13】 図5中E−E線に沿う把持部本体の部分の断面図。 Figure 13 is a cross-sectional view of a portion of the gripper body along in FIG 5 E-E line.

【図14】 図5中F−F線に沿う把持部本体の部分の断面図。 FIG. 14 is a cross-sectional view of a portion of the gripper body along in FIG 5 F-F line.

【図15】 図1中G−G線に沿う先端部分の断面図。 [15] In Figure 1 a cross-sectional view of a distal portion taken along the line G-G.

【図16】 開閉操作部の断面図。 Figure 16 is a cross-sectional view of the opening and closing operation unit.

【図17】 図16中A−A線に沿う断面図。 FIG. 17 is a cross-sectional view taken along in FIG 16 A-A line.

【図18】 給電接続部の断面図。 Figure 18 is a cross-sectional view of feed connection.

【図19】 切離手段の操作部の断面図。 Figure 19 is a cross-sectional view of the operation of the separating means.

【図20】 先端部を回転させる操作を示す説明図。 Figure 20 is an explanatory view showing an operation of rotating the tip.

【図21】 (a)は把持操作状態を示す鉗子の側面図、(b)はそのときのストップ選択レバーの状態の断面図。 [Figure 21 (a) is a side view of the forceps showing the gripping operation state, (b) is a sectional view of the state of the stop selector lever at that time.

【図22】 把持部材で組織を把持する直前の状態の説明図。 Figure 22 is an explanatory view of a state immediately before gripping the tissue grasping member.

【図23】 把持部材で組織を把持した状態の説明図。 Figure 23 is an explanatory view of a state of gripping the tissue grasping member.

【図24】 図23中A−A線に沿う断面図。 Figure 24 is a cross-sectional view taken along the line A-A in Figure 23.

【図25】 (a)は切離操作状態を示す鉗子の側面図、(b)はそのときのストップ選択レバーの状態の断面図。 [Figure 25 (a) is a side view of the forceps showing the severing operation state, (b) is a sectional view of the state of the stop selector lever at that time.

【図26】 切離操作状態の側面図。 FIG. 26 is a side view of the separating operation state.

【図27】 図26中A−A線に沿う断面図。 Figure 27 is a cross-sectional view taken along the line A-A in Figure 26.

【図28】 組織の凝固と切離の状態を示す斜視図。 Figure 28 is a perspective view showing a state of coagulation and dissection of tissue.

【図29】 ハンドル操作を規制する状態の鉗子の側面図。 FIG. 29 is a side view of the state of the forceps to regulate the steering wheel operation.

【図30】 本発明の第2の実施の形態を示すもので、 [Figure 30] shows a second embodiment of the present invention,
(A)は凝固鉗子全体の平面図、(B)は同側面図、 (A) is a plan view of the entire coagulation forceps, (B) is a side view of the same,
(C)は処置部の把持部材の開状態を示す側面図。 (C) is a side view showing the opened state of the gripping member of the treatment portion.

【図31】 (A)は第2の実施の形態の凝固鉗子のナイフユニットを示す側面図、(B)は第2の実施の形態の凝固鉗子の鉗子ユニットを示す側面図、(C)は第2 [31] (A) is a side view, (B) is a side view showing forceps unit coagulation forceps second embodiment showing a knife unit of the coagulation forceps of the second embodiment, (C) is the second
の実施の形態の凝固鉗子の操作部ユニットを示す側面図、(D)は第2の実施の形態の処置部の把持部材を示す平面図、(E)は(C)のA部の拡大図。 Side view showing the operation section unit of the coagulation forceps of the embodiment of, (D) is a plan view, enlarged view of part A of (E) is (C) showing the gripping member of the treatment portion of the second embodiment .

【図32】 (A)は第2の実施の形態の処置部の把持部材を示す横断面図、(B)は(A)のL 1 −L 1線断面図。 [Figure 32] (A) is a cross-sectional view showing the gripping member of the treatment portion of the second embodiment, (B) is L 1 -L 1 line cross-sectional view of (A).

【図33】 (A)は第2の実施の形態の凝固鉗子による生体組織の凝固状態を説明するための要部の縦断面図、(B)は凝固鉗子による凝固後の生体組織の切離状態を説明するための要部の斜視図。 [33] (A) is a longitudinal sectional view of essential parts for explaining the solidified state of the living tissue by the coagulation forceps of the second embodiment, (B) the separating of biological tissue after coagulation by coagulation forceps perspective view of essential parts for explaining the state.

【図34】 (A)は第2の実施の形態の凝固鉗子のトリガーの引き込み操作状態を示す側面図、(B)は(A)の状態から凝固鉗子のトリガーを解放しレバーを回動した状態を示す側面図、(C)は(B)の状態の凝固鉗子の処置部の把持部材を示す平面図。 [34] (A) is a side view showing a trigger pull operation state of the coagulation forceps of the second embodiment, (B) is pivoted lever to release the trigger of the coagulation forceps from the state of (A) side view showing a state, (C) is a plan view showing the gripping member of the treatment portion of the coagulation forceps state of (B).

【図35】 (A)は第2の実施の形態の凝固鉗子の処置部の把持部材間が設定間隔以上に開いた状態を示す側面図、(B)は(A)のA部の拡大図。 [35] (A) is a side view showing a state where the inter-gripping member of the treatment portion of the coagulation forceps of the second embodiment is opened above the set interval, enlarged view of the A portion of (B) is (A) .

【図36】 本発明の第3の実施の形態を示すもので、 [Figure 36] shows the third embodiment of the present invention,
(A)は処置部の把持部材を示す側面図、(B)は凝固鉗子の操作部ユニットと鉗子ユニットとを組み合わせた状態を示す要部の側面図。 (A) is a side view showing a gripping member of the treatment portion, (B) is a side view of an essential part showing a state in which the combination of the operation section unit and the forceps unit coagulation forceps.

【図37】 本発明の第4の実施の形態を示すもので、 [Figure 37] shows the fourth embodiment of the present invention,
(A)は処置部の把持部材を示す側面図、(B)は凝固鉗子の操作部ユニットと鉗子ユニットとを組み合わせた状態を示す要部の側面図。 (A) is a side view showing a gripping member of the treatment portion, (B) is a side view of an essential part showing a state in which the combination of the operation section unit and the forceps unit coagulation forceps.

【図38】 本発明の第5の実施の形態を示すもので、 [Figure 38] shows a fifth embodiment of the present invention,
(A)は凝固鉗子全体の平面図、(B)は同側面図、 (A) is a plan view of the entire coagulation forceps, (B) is a side view of the same,
(C)は処置部の把持部材の開状態を示す側面図。 (C) is a side view showing the opened state of the gripping member of the treatment portion.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 外科用鉗子 2 挿入部 3 挿入パイプ 4 手元操作部 5 先端把持部 6 切離手段 8 把持部本体 9 開閉操作体 11 把持操作機構部 12 給電接続部 13 切離操作部 14 操作選択機構部 15 操作部本体 40 ロッド部 41 弾性部材 42a,42b 把持部材 43 把持面 51 スリット 52 凝固電極 1 forceps 2 inserted portion 3 inserted pipe 4 the operation portion 5 distal clasps 6 separating means 8 gripper body 9 handling members 11 gripping the operation mechanism unit 12 feed connection 13 separating operation unit 14 operation selection mechanism 15 operation portion body 40 the rod 41 elastic members 42a, 42b gripping member 43 gripping surface 51 slit 52 coagulation electrode

Claims (1)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】体腔内に挿入される挿入部を有した操作部本体と、前記挿入部の先端付近に設けられた組織を把持する通電可能な一対の把持手段から成る凝固部と、前記凝固部で把持、凝固した組織を切離する切離手段と、前記操作部本体側に設けられ前記凝固部の把持手段を開閉操作する凝固部開閉操作手段と、前記操作部本体側に設けられ前記切離手段を操作する切離操作手段と、凝固部開閉操作手段と切離操作手段のいずれか一方を選択してその操作手段の動作だけを行うことが許容される操作選択手段とを具備したことを特徴とする切離機能付凝固鉗子。 And 1. A manipulation portion body having an insertion portion to be inserted into a body cavity, said consist energizable pair of gripping means for gripping the insertion portion tissue provided in the vicinity of the tip of the solidified portion, the solidification gripping in parts, and separating means for dissecting the coagulated tissue, the solidified portion opening and closing means for opening and closing the gripping means of the solidified portion provided in the operation portion main body, disposed in the operation portion main body wherein and separating operation means for operating the separating means, to perform the operation of only the operation unit is provided with an operation selection means is permitted by selecting one of the solidified portion opening and closing means and separating operation means coagulation forceps with the separating function, characterized in that.
JP25020796A 1995-09-20 1996-09-20 Coagulation forceps with separating function Withdrawn JPH1024051A (en)

Priority Applications (5)

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JP24167695 1995-09-20
JP8-116560 1996-05-10
JP11656096 1996-05-10
JP7-241676 1996-05-10
JP25020796A JPH1024051A (en) 1995-09-20 1996-09-20 Coagulation forceps with separating function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25020796A JPH1024051A (en) 1995-09-20 1996-09-20 Coagulation forceps with separating function

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