JP2006094876A - Medical treatment instrument - Google Patents

Medical treatment instrument Download PDF

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JP2006094876A
JP2006094876A JP2004280779A JP2004280779A JP2006094876A JP 2006094876 A JP2006094876 A JP 2006094876A JP 2004280779 A JP2004280779 A JP 2004280779A JP 2004280779 A JP2004280779 A JP 2004280779A JP 2006094876 A JP2006094876 A JP 2006094876A
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medical treatment
wire
linear portions
body
main linear
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JP4324535B2 (en
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Tomihisa Kato
富久 加藤
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Asahi Intecc Co Ltd
朝日インテック株式会社
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a high-quality medical treatment instrument which can execute a therapy to remove a foreign substance in a celom or a thrombus rapidly, accurately and simply. <P>SOLUTION: This medical treatment instrument is so constituted that a therapy section in the celom is disposed at a pointed head region of a slender and flexible main linear section 2, wherein the main linear section 2 comprises a hollow stranded wire coil 4 in which a core material for an operation 3 is inserted, and the therapy section in the celom is so constituted that it is a plurality of spans arrangement of expanded and contracted diameter sections 5A and 5B with the length L comprising the coiled wires 7 of the hollow stranded wire coil 4, and the expanded and contracted diameter sections 5A and 5B can be basket-type expanded diameter variants 6A and 6B comprising the coiled wires 7 and can become contracted diameter variants changed from the expanded diameter variants by a pulling/pushing operation of the core material for the operation 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、血管内の血栓や胆管内の胆石等の体腔内異物の除去治療・肺塞栓症治療・血液透析治療等に用いる医療用処置具に関するものである。 The present invention relates to a medical treatment tool used for gallstones like body cavity ablation therapy, pulmonary embolism treatment and hemodialysis treatment and the like of foreign matter in the thrombus and bile duct within the vessel.

血管等の体腔内異物の除去治療に用いる医療用処置具として、体腔内に挿入する細長可撓性の線条体の先端部分に異物除去手段を備え、体外に出した手元操作部を押し・引き・回転操作して該異物の除去治療をする医療用処置具は特許文献1〜3に例示する背景技術がある。 As medical treatment tool used for the removal treatment of the body cavity foreign body such as a vessel, comprising a foreign substance removing means to the tip portion of the striatum of elongate flexible to be inserted into the body cavity, pushing the operation portion that exteriorised - medical treatment tool for removal treatment of the foreign matter by pulling and rotating operation is the background art illustrated in Patent documents 1 to 3.

即ち、その特許文献1のものは、線条体の先端部分に「弾性質円板形状または放射線状突設形状の弾性質の除去ブラシ」から成る異物除去手段を備え、その除去ブラシによって血管内血栓等の体腔内異物を容易にかき取り除去する構造に設定されている。 That is, that of the Patent Document 1, provided with a foreign matter removing means comprising a "removing brush elastic membrane disc-shaped or elastic quality of radial projecting shape" the tip portion of the striatum, the blood vessel by the removal brush the body cavity foreign matter such as thrombus is set to the structure to easily scraped off.

そして、特許文献2のものは血管内の血塊治療具にして、線条体の先端部位に「リボン・ワイヤの素線をクロス編成した拡縮自在の2個のボール部」をピッチ配設した構造を有し、そのボール部によって血栓を除去捕集したり血栓溶解剤注入して血流再開治療を施すように成っている。 Then, in Patent Document 2 in the clot treatment instrument in the blood vessel, and pitch arranged "two balls of the universal scaling the strands of ribbon-wire to cross organized" in the distal end portion of the umbilical member structure has, so that the applied blood flow resumed treated by removing trapped thrombus injection or thrombolytic agents by its ball portion.

そして、特許文献3のものは、可撓性線条体のシース体の先端部位に、該シースから突出状態で拡大羽根を呈し、かつ、該シースへの引き込み収納可能な「らせん集合体のバスケット部」によって尿管・胆管内の結石等の体腔内異物を捕捉除去治療する構造を特徴としている。 Then, in Patent Document 3, the distal end portion of the sheath body of the flexible striatum, exhibiting the expansion vane in the protruding state from the sheath, and retraction basket retractable "spiral assembly to said sheath part "is characterized in vivo foreign body capturing removing treatment structures stones such urinary tract, bile ducts by.

特開2003−38500公報 JP 2003-38500 Publication 特表2003−521259公報 JP-T 2003-521259 Publication 特表2002−516139公報 JP-T 2002-516139 Publication

以上の背景技術の特許文献1・2のものは体腔内に挿入する線条体の先端部分に設けた除去ブラシ・ボール状部の体腔内治療部によって血栓等を除去治療する構造にして、病変部個個の形態に適するサイズに調整セット不能であり、かつ、単に摺擦削りするに限ぎず、また特許文献3のもののバスケット部もシースへの出入によって若干のサイズ変形は可能であるものの、病変部の個個の形態にマッチングさせる的確なサイズ変更は不能にして、いずれも体腔内異物を迅速的確にして容易に除去する治療性に欠ける。 Above background art in Patent Document 1 and 2 of a structure for removing treating thrombosis or the like by the body cavity treatment of removing brush ball-shaped portion provided at the tip portion of the striatum to be inserted into a body cavity, lesions parts are not adjustable set a size suitable for the form of the individual, and simply limited Gizu to scraping rubbing and although the basket portion of the in Patent Document 3 is also possible slight size variations by and out of the sheath, exact resizing to match the individual forms of lesions in the non both lacks therapeutic properties easily removed by quick accurate body cavity foreign body.

そして、以上の背景技術のいずれも体腔内治療部を構成する要部が、構造複雑にして成形加工性に劣ると共に、病変部の個個に適する多様サイズのものを準備する必要があるので、成形加工性に劣ると共に、コスト高にして、かつ日常管理・治療前準備(病変部の個個に適合するサイズのものを択一する作業)が煩雑に成る。 The main part constituting the body cavity treatment unit none of the above background art, along with poor moldability in the structure complicated, it is necessary to prepare those various sizes suitable for individual lesion, with poor moldability, and costly, and daily management and treatment preparatory (operation of alternative ones sized according to individual lesion) is made complicated. 以上の諸難点がある。 There is more of various difficulties.

本発明は、以上の背景技術の難点を解消して当該治療性の特段の向上を図ると共に、加工生産性に優れる高品質・高性能の「体腔内治療部つき医療用処置具」を提供するものである。 The present invention, there is ensured a particular improvement in the treatment of to eliminate the drawbacks of the above background art, provides a "body cavity treatment unit with a medical treatment tool" high-quality, high-performance which is excellent in processability productivity it is intended.

以上の技術課題を解決する本発明は(その基本形態を示す図1参照)「細長可撓性の主線条部2の先端部位に体腔内治療部を設けた医療用処置具において、主線条部2が操作用芯材3を内挿した中空撚線コイル体4から成ると共に、体腔内治療部が中空撚線コイル体4のコイル素線7から成る長さLの膨縮径部5A・5Bの複数スパン配設にして、操作用芯材3のプル・プッシュ操作によって、前記膨縮径部5A・5Bのコイル素線7によるバスケット状膨径変体6A・6Bと、その膨径変体からの縮径変体を自在にした構造」を特徴とする第1発明のの医療用処置具1Aと、 The present invention is in the medical treatment tool having a body cavity treatment portion (the reference 1 shows a basic form) "elongate flexible distal end portion of the main linear portions 2, a main linear portions to solve the above technical problems with 2 consists of a hollow stranded-wire coil body 4 with interpolation of the operating core 3, deflating diameter portion 5A · 5B of length L vivo treatment unit is a hollow stranded-wire coil wire 7 of the coil body 4 and a plurality span arrangement of the pull-push operation of the operating core material 3, and a basket-like upset variants 6A, 6B by the coil wire 7 of the inflation and deflation diameter portion 5A-5B, from the bulge variant a medical treatment tool 1A of the first invention, wherein the structure "which is freely shrink deformation body,

(基本形態を示す図2参照)同じく主線条部に体腔内治療部を設けたものにおいて、「主線条部2が操作用芯材3を内挿した中空撚線コイル体4から成る外側主線条部2Aと内側主線条部2Bの2層管構造にして、体腔内治療部が、前記2層の中空撚線コイル体4のコイル素線7から成る長さL1・L2の内外2層の膨縮径部5C・5Dにして、操作用芯材3のプル・プッシュ操作による膨縮径部5C・5Dのコイル素線7による内包外包形態の2層のバスケット状膨径変体6C・6Dと、その膨径変体からの縮径変体を自在にした構造」と特徴とする第2発明の医療用処置具1Bに成っている。 (See FIG. 2 shows a basic form) in same one provided the body cavity treatment unit to the main linear portions, outside main filament consisting of a hollow stranded-wire coil body 4 "main linear portions 2 is interpolating the operating core 3 in the two-layer pipe structure parts 2A and inner main linear portions 2B, the body cavity treatment section, the inner and outer layers of the two layers of the hollow stranded-wire coil body 4 of the length L1 · L2 consisting of the coil wire 7 Rise in the reduced diameter portion 5C-5D, a basket-like upset variant 6C-6D of two layers of encapsulating outer hull form of the coil wire 7 of the expansion and contraction diameter portion 5C, 5D by pull-push operation of the operating core material 3, It is made in medical treatment tool 1B of the second invention, wherein its freely structure the shrink deformation of the upset variants ". なお、膨径変体6C・6Dの相対形態は図示実線の略相似形態、または内側の膨径変体6Dの頂点が外側の膨径変体6Cの内周に内接・近接する非略相似形態のいずれでも良い。 The relative form of upset variant 6C-6D are any non-substantially similar form substantially similar embodiment shown solid or vertices inside the upset variants 6D, it is inscribed, close to the inner periphery of the outer bulge variant 6C But good.

即ち、以上の構成の医療用処置具1A・1Bは、主として血栓・血餅病変部の治療や肺塞栓症治療に用いるものにして、血管内へ挿入する細長可撓性の主線条部2を「外層被覆Cつき中空撚線コイル体4」で形成すると共に、その主線条部2の先端部位に「外層被覆Cを若干長剥離してコイル素線7を露出した膨縮径部5A〜5D」を設け、治療時に体外に出す手元操作部10で操作用芯材3をプル操作することによって、膨縮径部5A〜5Dを強制短縮させて、その膨縮径部5A〜5Dのコイル素線7が個個に外方へスパイラル状に膨大径した「スパイラル素線7群から成る任意径バスケット形態の膨径変体6A〜6D」に成し、その膨径変体6A〜6Dによって血管Tの血栓・血餅病変部P等の治療を行い、その治療後には前記プル操作 In other words, medical treatment tool 1A, 1B having the above structure is mainly in the for use in the treatment or pulmonary embolism treatment of thrombotic-clot lesions, elongated flexible insertion into the blood vessel main linear portions 2 thereby forming the "outer layer cover C with the hollow stranded-wire coil body 4 'deflated diameter 5A~5D exposed coil wires 7 and slightly long stripped" outer coating C to the distal end portion of the main linear portions 2 the "provided by pulling operation of the operating core member 3 by the operation part 10 to issue the body during treatment, to compulsorily reducing the inflation and deflation diameter 5A-5D, the coil elements of the expansion and contraction diameter portion 5A-5D form the line 7 has enormous size spirally outwardly individual "upset variant 6A~6D any size basket form consisting of a spiral wire 7 group", the vessel T by its radially expanded variant 6A~6D It performs treatment such as a thrombus, blood clot lesion P, the pulling operation after the treatment フリーにすることによるコイル素線7の自力弾性による復元力、または操作用芯材3のプッシュ操作によって、縮径してストレート状の膨縮径部5A〜5Dに復元縮径変体する膨縮変体自在にした思想から成るものである。 Restoring force due to their own elasticity of the coil wire 7 due to the free, or by pushing operation of the operation for the core 3, to restore shrink deformation body reduced in diameter to the straight deflated diameter 5A~5D deflating variant it is made of a spirit which is freely.

そして、前記第1・第2発明とも、その膨縮径部5を複数セットにする共通の上位概念構成から成り、前記第1発明のものは「膨縮径部5のスパン配設」前記第2発明のものは「同一ポイントへの膨縮径部5の2重配設」の下位概念構成を特徴にしている。 Then, both the first and second invention, made from a common preamble structure for the expansion and contraction diameter portion 5 into a plurality sets, the "span disposed of inflation and deflation diameter portion 5" those in the first invention wherein the those of the second invention has the features of the subordinate concept construction of "double arrangement of expansion and contraction diameter portion 5 to the same point." なお前記の中空撚線コイル体4とは、特開2002−275774公報等に示される多数のコイル素線を同一円周上に撚合構成した可撓性線状体の中空撚線コイル体」を意味し、膨縮径部5A〜5D以外の部分は外層被覆Cを存在させて操作用芯材3の操作力に関係なく正常な可撓性管体を維持させる形態に構成すると共に、操作用芯材3は主線条部2の先端に固定され、主線条部2・内側主線条部2Bと相対滑り自在に挿入設定される。 Note that the hollow stranded-wire coil body 4 is hollow stranded-wire coil of flexible line-shaped body obtained by stranding on the same circumference a number of coil wires as shown in JP 2002-275774 Laid " means, portions other than the inflation and deflation diameter 5A~5D is configured in the form of maintaining a normal flexible tubular body regardless of the operating force of the operating core material 3 in the presence of an outer layer coating C with the operation use the core 3 is fixed to the distal end of the main linear portions 2, it is inserted set main linear portions 2-inner main linear portions 2B and the relative sliding freely. そして、その主線条部2・2A・2Bの内周と操作用芯材3の中空部のいずれかの単数または複数を薬液・血液の流体流路9として機能させる。 Then, to function either one or more of the inner peripheral hollow portion of the operating core member 3 of the main linear portions 2, 2A, 2B as the fluid flow passage 9 of the drug solution, blood.

そして、前記基本構成の医療用処置具1A・1Bは作用効果のさらなる向上を図る意図から下記の態様が必要に応じて採択される。 The medical treatment tool 1A · 1B of the basic configuration is adopted as necessary following embodiments from the intended further improved advantages. 即ち、前記第1発明のものは膨縮径部5A・5Bの長さL1・L2を大小異サイズに設定し、異なる膨大径Dの膨径変体6に成す態様を採択し、前記第2発明のものは、膨縮径部5C・5Dを撚り方向を相反方向に成す中空撚線コイル体4の態様にする。 That is, the length L1 · L2 of inflation and deflation diameter portion 5A · 5B is that of the first invention is set larger minor differences size, adopted a manner forming the upset variant 6 of large diameter D that is different, the second invention ones, to aspects of the hollow stranded-wire coil body 4 forming the twisting direction of expansion and contraction diameter portion 5C · 5D in opposite directions.

さらに、前記第1・第2発明のいずれも「中空撚線コイル体4の内周を治療用薬液の液体流路に成す態様」「膨径変体6の膨径サイズのセットロック手段の付設」「膨径変体6の全部または1部を被覆する弾性質被覆の付設」「中空撚線コイル体4の素線7が、単線または撚り線の撚合線形態・異種金属の組合せ・異形断面線」「中空撚線コイル体4の外周を強制縮径加工した形状」「主線条部2・外側主線条部2Aに弾性鞘管を設ける」以上の態様を採択する。 Furthermore, "aspect forming the inner periphery of the hollow stranded-wire coil body 4 into the liquid flow path of the treatment chemical" Both of the first and second invention "attached set locking means upset size bulge variant 6" "attached elastic membrane coating covering all or a portion of the upset variant 6" "strands 7 of the hollow stranded-wire coil body 4, combined-modified cross-section wire twisted lines form, different metal solid wire or stranded wire "" adopt hollow stranded forced diametral reduction shape the outer periphery of the coil body 4, "" an elastic sheath tube to the main linear portions 2 · outside main linear portions 2A "or more aspects.

前記構成の本発明の医療用処置具1Aは(図1(C)(D)参照)膨縮径部5A・5Bをストレート状縮径状にして血管Tに挿入して、病変部Pを突き通して後方の膨縮径部5Bを病変部Pにセットし、しかるのち膨縮径部5A・5Bを必要径の膨径変体6A・6Bに成すと共に、必要に応じて薬液注吸入部12から血塊溶解剤(ウロキナーゼ・TPA)の薬液Mを中空撚線コイル体4の内周の液体流路9から注入して「押し・引き・回転」操作して病変部Pを治療する。 The medical treatment tool 1A of the present invention the arrangement is inserted into a blood vessel T and the (FIG. 1 (C) (D) refer) deflating diameter portion 5A · 5B straightly reduced 径状 mintues lesion P set the rear of the expansion and contraction diameter portion 5B to the lesion P through, with forms to upset variant 6A · 6B need diameter expansion and contraction diameter portion 5A · 5B later that accordingly, the liquid medicine inlet portion 12 as needed by injecting clot lysing agent chemicals M of (urokinase-TPA) hollow stranded-wire coil body 4 of the inner periphery of the liquid flow path 9 by operating "push-pull and rotation" treating lesions P.

以上の治療手法において、膨径変体6は病変部Pの個別状態に適する小なる径から図示点線の圧縮状態にすることによる図1(E)に示す花弁状拡大形態に至る多様な変体形状の設定が自在にして、スパイラル状のリブ線の集合から成るので外力に対する機械的形状安定性に優れ、かつ押し・引き・回転操作が可能であることから、スパイラル状のコイル素線7群から成るバスケット形態の膨径変体6Bの病変部Pへの喰い込みとコイル素線7個個の血塊引き掻き作用の複合によって極めて効率的にして美麗な血塊除去治療ができる。 In the above treatment method, upset variant 6 of diverse variants shape leading to petaloid enlarged form shown in FIG. 1 (E) due to the compressed state shown dotted from small consisting diameter suitable for individual states of the lesion P setting and freely, so consists of a set of spiral ribs wire excellent mechanical shape stability against an external force, and since it is possible to press-pull-rotation operation, consisting of a spiral coil wire 7 group and very efficiently by eating inclusive composite clot pull scraping action of the coil wire 7 individual to lesion P of upset variant 6B basket forms can beautiful clot removal treatment.

そして、膨径変体6の存在によって病変部Pの血流Fを確保すると共に、前方の膨径変体6Aが後方の膨径変体6Bによって剥離した血栓等の体腔内異物の受け入れバスケット部として機能して、血流Fによる流動異物の捕捉作用を成し、流動異物による末梢血管の閉塞トラブルを防止作用する。 Then, while securing blood flow F of the lesion P by the presence of the bulge variant 6, functions as a receiving basket portion of the body cavity foreign matters such as thrombus front of upset variants 6A is peeled off by the rear of the bulge variant 6B Te, form a scavenging flow foreign object by the blood flow F, acting prevent clogging troubles in peripheral blood vessels by fluidized foreign matter.

さらに、注入された薬液Mは、その出口側の膨径変体6Bの入口側のスパイラル状の素線7群によってスパイラル流を生じるので、病変部への薬液Mの接触が効果的にして有効な血塊溶解ができる。 Furthermore, the injected liquid medicine M, so results in a spiral flow by the inlet-side spiral wire 7 group of the outlet side of the upset variant 6B, an effective contact of the chemical solution M to lesion to effectively It can clot lysis. 以上の主たる特有の作用効果がある。 There are major unique advantages of the above.

一方、前記構成の医療用処置具1Bは(図2(D)参照)前記の医療用処置具1Aと同様に血管Tの狭窄病変部Pに膨縮径部5C・5Dをセットし、しかるのち所要径の膨径変体6C・6Dに変体させて必要に応じて薬液注入して治療するにおいて、下記の特有の作用効果が存在する。 On the other hand, medical treatment tool 1B of the configuration sets (FIG. 2 (D) refer) said inflation and deflation diameter portion 5C · 5D the stenotic lesion portion P of the medical treatment tool 1A as well as blood vessels T, after accordingly in liquid injection to treat as required by variant to upset variant 6C · 6D of the required diameter, there are inherent advantages of the following. 即ち、膨径変体6C・6Dは同じく押圧外力に耐する形状安定性が良く、狭窄病変部Pの血塊・血餅の抵抗によって外側の膨縮径部5Cの円滑な膨径変体6Cが困難なケースや、円滑に拡径変体した膨経変体6Cを治療の為に押し・引き・回転操作したとき形状崩れを容易に生ずるケースでも、内側の膨径変体6Dが膨径変体6Cを内側から支承して機械的強度を補充して大なる変形・崩れを防止作用し、血流Fを確保しながら血塊・血餅の迅速良好な溶解除去作用を可能にする。 That is, upset variant 6C-6D has good shape stability similarly resistant to the pressing force, it is difficult smoothly upset variant 6C outer deflated diameter portion 5C by the resistance of the clot-clot stenotic lesion P case and, smoothly supported even in cases that cause the shape collapse easily when the enlarged variant was 膨経 variant 6C was press-pull and rotation operation for the treatment, the inside of the upset variants 6D is upset variant 6C from the inside the deformation and collapse atmospheric consisting act prevented supplemented with mechanical strength, to allow rapid good dissolution removal action of clot-clot while ensuring blood flow F.

そして、その内外2重の膨径変体6C・6Dを形成する中空撚線コイル体4が2重管形態となるので、その2重管のそれぞれの内周から薬液Mの放出が可能になり、治療作用のさらなる向上ができる。 Since the hollow stranded-wire coil body 4 forming the inner and outer double upset variant 6C · 6D is a double tube form, allows the release of the chemical solution M from each of the inner periphery of the double pipe, It can further improve the therapeutic effect. なお、以上の本発明の医療用処置具1A・1Bは血液透析治療用・肺塞栓症治療用としても有用に使用できる(この用法と、それによる作用効果は実施例において詳述する)。 Incidentally, medical treatment tool 1A-1B of the present invention described above can be used also useful for the treatment of blood dialysis treatment, pulmonary embolism (and this usage, the function and effect of it will be described in detail in the Examples).

さらに、本発明の医療用処置具1A・1Bは、体腔内治療部の要部が中空撚線コイル体4の任意ポイントの外層被覆Cを必要長剥離するのみで成形加工ができるので、背景技術のものより成形加工性が特段に向上すると共に、単一の医療用処置具1A・1Bによって多様な形態の病変部治療が可能にして、特段の低コスト性と日常管理性が確保され、当該治療性能の向上と治療コストの低減ができる特有の主たる作用効果が存在する。 Furthermore, medical treatment tool 1A · 1B of the present invention, since the main part of the body cavity treatment unit can molded simply by peeling required length outer layer sheath C of any point of the hollow stranded-wire coil body 4, background with moldability than the is improved particular, to allow lesion treatment of a variety of forms by a single medical treatment tool 1A · 1B, special low cost and daily management properties are ensured, the the main advantages of the unique that can reduce the increase and treatment costs of treatment performance exists.

以下、前記基本形態の好ましい実施例諸元と、前記基本形態に基づく好ましい実施例を説明する。 Hereinafter, a preferred embodiment specifications of the basic form, a preferred embodiment based on the basic configuration will be described.

まず、図1に示す基本形態の1実施例の諸元は下記のとおりである。 First, specification of an embodiment of the basic configuration shown in FIG. 1 is as follows. 即ち、前記基本形態の血栓・血餅病変部治療用の医療用処置具1Aの好ましい実施例の諸元は「主線条部2が「1×7の撚合線のコイル素線7の8本」から成るコイル体にポリエチレン・ポリプロピレン・ポリアミド等の外層被覆Cを施した内直径=0.2粍・外直径=0.55粍の中空撚線コイル体4」「操作用芯材3が1×7の中実撚合線にして外直径=0.12粍」「膨縮径部5A・5Bが長さL=5.0粍、スパンS=6粍」である。 That is, eight coil wire 7 of the specifications are "main linear portions 2 '1 × 7 twisted wire of the preferred embodiment of a medical treatment tool 1A for thrombus-clot lesion treatment of the basic form among diameter = 0.2 millimeter subjected to outer layer sheath C such as polyethylene, polypropylene polyamide coil body consisting of ", the outer diameter = 0.55 millimeter of the hollow stranded-wire coil body 4 '" is operating core 3 1 × outer diameter = 0.12 millimeter in the solid twisted wire in a 7 "" deflated diameter portion 5A · 5B length L = 5.0 millimeter, a span S = 6 millimeter. " 以上の諸元の実施例のものは前記の主たる作用効果が円満に享受できる。 The main advantages of the above more than the specifications of examples can peacefully enjoyed.

続いて、図3〜図5を参照して医療用処置具1Aの他の実施例を説明する。 Next, a description will be given of another embodiment of a medical treatment tool 1A with reference to FIGS. 即ち、図3に示すものは膨縮径部5A・5Bをスパン配設したものにおいて、膨縮径部5A・5Bの長さL1・L2がL1<L2の大小不等に設定され、後方大径の膨径変体6Bと前方小径の膨径変体6Aの組合せ構成に成っている。 That is, in those that shown in FIG. 3 is spanned disposed deflated diameter portion 5A · 5B, the length L1 · L2 of inflation and deflation diameter portion 5A · 5B is set to the magnitude unequal L1 <L2, the rear large It is made to the combination configuration of the diameter of the upset variant 6B and the front small-diameter upset variants 6A. なお、この構成のものはL1・L2のそれぞれのコイル素線7の360°捻回スパンが、L1・L2のそれぞれの長さと同一の中空撚線コイル体4を用いて膨径変体作用をより容易になす構成としても良い。 Incidentally, 360 ° twist span of each coil wire 7 of L1 · L2 those in this configuration, more of the radially expanded variants act with respective lengths and the same hollow stranded-wire coil body 4 of L1 · L2 it may be readily made structure.

この大小不等構成のものは、血管内治療において血管末梢側に位置する膨径変体6Aが小径となるので血管内配設の形態が好ましくなると共に(図3(C)参照)後方の膨径変体6Bを細長形態にして長い病変部へフィットセットすることができる。 Those of the large and small unequal arrangement, since upset variant 6A located on the vascular peripheral side in endovascular treatment is small with the form of endovascular arrangement is preferably (see FIG. 3 (C)) behind the bulge variant 6B it is possible to fit the set to the long lesions in the elongated form.

そして、図4のものは膨縮径部5が3個連設スパン配設形態に形成されている。 The expansion and contraction diameter portion 5 is that of FIG. 4 are formed in three consecutively provided span arranged form. この図4のものは膨径変体6の膨径を大にして偏平ブラシ形態にすることによって、血管内異物の除去ブラシとして機能させると共に、後述する「膨径変体6の外周に弾性質被膜を付設する」ことによって、ブラッシング除去した体腔内異物Dの挟み込み捕捉回収」が可能となる。 By a flat brush configuration with the upset of the upset variant 6 to atmospheric those of FIG. 4, the function as removing brush intravascular foreign body, the elastic membrane coating the outer periphery of the "upset variant 6 that will be described later by additionally provided "that entrapment capture recovery of the body cavity foreign body D brushing removal" is possible. なお、この態様のものは異物Dの挟み込み捕捉作用を良好にさせる為に(図4(C)参照)膨縮径部5の長さをコイル素線7の360°撚回スパンにして異物キャッチ力を強くする形態が好ましい。 Incidentally, foreign matter caught in the order to better entrapment scavenging of foreign matter D is that of the embodiment (FIG. 4 (C) see) the length of the inflation and deflation diameter 5 to 360 ° Yomawa span of the coil wire 7 form to strengthen the force is preferable. そして、この図4(C)の形態にすると膨径変体6A〜6Cの機械的強度が特段に向上するので、血管壁にこびりついている血塊・血餅の掻き取り回収ができると共に、捕獲した異物Dの体外への取り出し中の落下防止ができる。 Foreign matter Since the mechanical strength of the bulge variant 6A~6C when in the form of FIG. 4 (C) is improved particular, it is scraping recovery of clot-clot that sticks to the vessel wall, that captured It may fall prevention in removal of D to the outside.

次に図5を参照して、透析治療用に応用した医療用処置具1Aの1実施例を説明する。 Referring now to FIG. 5, illustrating one embodiment of a medical treatment tool 1A was applied to dialysis therapy. 即ち、この透析治療用のものは「膨径変体6A・6Bを血液の取入れ部」「操作用芯材3の中空部を血液の戻し部」として機能させるものにして、縮径状態の膨縮径部5A・5Bを腕動脈の所要ポイントに挿入セットして必要サイズの膨径変体6A・6Bに成し、しかるのち、主線条部2の内周の液体流路9を往路用吸引路として液体注吸入部12から血液Fを吸引して血液透析部23を通して透析処理し、その透析血液Fを体外に出している操作用芯材3の中空部の後端に注入して操作用芯材3の中空部を復路用の液体流路9として機能させ、その先端開口部から血管T内に復流させて透析治療する。 That is, the one for the dialysis treatment in the one which functions as a "upset variants 6A · 6B the inlet portion of the blood," "return portion of the blood hollow portion of the operating core 3", the reduced diameter state expansion and contraction forms a diameter 5A · 5B to upset variant 6A · 6B of the required size and insertion set to the required point of brachial artery, after accordingly, the inner periphery of the liquid flow path 9 as forward suction path of the main linear portions 2 from the liquid Note suction unit 12 to suck the blood F was dialyzed through dialysis unit 23, injected into operation the core material to the rear end of the hollow portion of the operating core member 3 which has issued the dialysis blood F of the body 3 of the hollow portion to function as a liquid flow path 9 for return condensate flowed dialyzed treated into the vessel T from the tip opening.

なお、この透析治療用の医療用処置具1Aの好ましい実施例の諸元は、「主線条部2が、線材7本の撚合線のコイル素線7から成るコイル体に同じく外層被覆Cを施した内直径=3.2粍・外直径=4.0粍の中空撚線コイル体4」「操作用芯材3が、ステンレス材・Ni−Ti材等の中空線材、または極細線の撚合線から成る中空線条体にして、外直径2.0粍・内直径=1.6粍」「膨縮径部5A・5Bが、それぞれの長さL=14粍、スパンS=8粍」である。 Note that specifications of a preferred embodiment of a medical treatment tool 1A for the dialysis treatment, the "main linear portions 2, the same outer coating C to the coil body made of coil wire 7 of the wire seven twisted wires is among diameter = 3.2 millimeter, an outer diameter = 4.0 millimeter of the hollow stranded-wire coil body 4 ' "operating core 3 which has been subjected, stainless steel, Ni-Ti material such as a hollow wire, or stranded extra fine wires in the hollow striatum consisting if line, the outer diameter of 2.0 millimeter within diameter = 1.6 millimeter "" deflated diameter portion 5A-5B are respective lengths L = 14 millimeter, span S = 8 millimeter "it is.

以上の透析治療用のものは(図5(B)参照)膨径変体6を血管内の要所にセットして液体注吸入部12から被透析血液を往路用の「主線条部2の内周の液体流路9」を通して吸い取って血液透析部(図示しない)を通過させて透析し、その透析血液を復路用の「操作用芯材3の中空部の液体流路9」を通して操作用芯材3の先端開口部から血管T内に還流させて血液透析治療する。 Those for dialysis treatment described above (see FIG. 5 (B) refer) upset variant 6 an inner sets the key point in the blood vessel from the liquid Note suction unit 12 to be dialyzed blood for outward "of the main linear portions 2 blotted through the circumferential fluid flow paths 9 'and dialyzed by passing hemodialysis unit (not shown), operating wick the dialysis blood through "hollow portion of the liquid flow path 9 of the operating core 3" for the return from the distal end opening portion of the timber 3 by refluxing in a blood vessel T to hemodialysis treatment.

以上の用法において、膨径変体6は血管の任意ポイントに自在にセット可能にして、かつ機械的形状安定性に優れるので血管壁によって容易に押圧変形することなく効率的な血液吸い取りができると共に、中空撚線コイル体4は全長に亘って金属線の撚合線で形成された高引張強度体であることから、治療中に例えば血管のスパスム現象(けいれん)の異常が発生して当該部位が血管内拘束されたとき、その高引張強度によってその拘束から即時引き抜き可能にして治療トラブルの発生を有効に防止することができる。 In the above usage, the upset variants 6 and enables set freely at any point of the vessel, and can easily suck efficient blood without pressed and deformed by the vessel wall because of excellent mechanical shape stability, since the hollow stranded-wire coil body 4 is a high tensile strength body formed of twisted wires of the metal wire over the entire length, abnormality occurs the site of spasm phenomena during treatment such as vascular (spasms) of when constrained within the vessel, it is possible to effectively prevent the occurrence of the high tensile strength by and enables immediate withdrawal from its restraining treatment trouble.

さらに、血液取入れ部の膨径変体6A・6Bが少なるスパンSを介して並列存在するので血液Fの取り入れ性が顕著になると共に、膨径変体6を通過する血流は、膨径状態のコイル素線7のスパイラル形状に沿って誘導流されるスパイラル流となるので、血液吸引部等で生ずる有害な血液乱流の発生と「それによる治療用処置具の当該部位の振動発生」を防止して、円滑効率的な血液抜きが可能にして極めて有効かつ高効率の血液透析治療ができる。 Furthermore, the intake of blood F becomes conspicuous so upset variants 6A · 6B blood intake portion is parallel there through Sukunaru span S, blood flow through the upset variant 6, the radially expanded state since the induction flowed spiral flow along the spiral shape of the coil wire 7, to prevent the occurrence of harmful blood turbulence caused by blood sucking unit such as a "vibration generator of the portion of the treatment device by which" Te, it is very effective and highly efficient hemodialysis treatment to allow smooth efficient blood vent.

次に、前記基本形態の体腔内異物除去治療用の医療用処置具1Bの好ましい実施例の諸元を説明する。 Next, the specifications of the preferred embodiment of a medical treatment tool 1B for body cavity foreign matter removing treatment of the base form. 即ち、外側主線条部2Aが「0.04粍直径線材の1×7撚りの直径=0.12粍の撚合線」のコイル素線から成るコイル体に同じく外層被覆Cを施した「外直径=1.8粍、内直径=1.2粍」、内側主線条部2Bが「直径=0.04粍のコイル素線7本から成るコイル体に同じく外層被覆Cを施した外直径=1.0粍、内直径=0.5粍」操作用芯材3が「0.12粍直径の線材の1×7の撚合線にして、外直径=0.36粍の中実線」「膨縮径部5C・5Dの長さが26粍と14粍」である。 That is, "outside the outer main linear portions 2A are subjected to same outer coating C to the coil body made of a coil wire of" 0.04 millimeter diameter wire of 1 × 7 twist diameter = 0.12 millimeter of Yogosen " diameter = 1.8 millimeter, inner diameter = 1.2 millimeter ", the outer diameter of inner main linear portions 2B is subjected to same outer coating C to the coil body made of coil wire seven" diameter = 0.04 millimeter = 1.0 millimeter inner diameter = 0.5 millimeter "is operating core member 3 in the twisted wire of 1 × 7 of the wire in the" 0.12 millimeter diameter, the solid line in the outer diameter = 0.36 millimeter, "" the length of the expansion and contraction diameter portion 5C · 5D is 26 millimeter and 14 millimeter. " 以上の医療用処置具1Bは前記の作用効果が円満に享受できる。 Action and effect of the the above medical treatment tool 1B can peacefully enjoyed.

続いて図6を参照して医療用処置具1Bの他の実施例を説明する。 With continuing reference to Figure 6 illustrating another embodiment of a medical treatment tool 1B. 即ち、この図6のものは外側主線条部2Aと内側主線条部2Bのコイル素線7が相互に逆方向の撚り方向に設定されている。 That is, the ones of Figure 6 is the coil wire 7 of the outer main linear portions 2A and the inner main linear portions 2B is set in the direction of twist in mutually opposite directions. この図6のものは2層の膨径変体6C・6Dのコイル素線7の撚り方向が逆になるので、外・内主線条部2A・2Bのそれぞれの内周の流体流路から放出した薬液Mの膨径変体6C・6Dのスパイラル素線によるスパイラル流が相互に逆方向となり、薬液Mの乱流・拡散作用を生じて血栓・血餅等を溶解させる薬液投与効果が一段と向上する。 Since twisting direction of the coil wire 7 of the bulge variant 6C-6D of two layers as in FIG. 6 is reversed and discharged from each of the inner circumference of the fluid flow path in the outer-main linear portions 2A-2B spiral flow is reversed direction to each other by a spiral wire of upset variant 6C, 6D of the chemical solution M, chemical dosing effect of occurring a turbulent-diffusion action of the chemical solution M to dissolve the thrombus-clot or the like is further improved.

さらに、医療用処置具1Bは、前記の体腔内異物の除去治療用以外に下記治療用として有用に活用できる。 Furthermore, medical treatment tool 1B can usefully utilized for the following treatment than for the removal treatment of the body cavity foreign body. 即ち、前記の透析治療用の医療用処置具1Aと類似諸元にすることによって透析治療用として活用可能にして、前記透析治療用処置具1Aと同様な作用効果が享受できる。 That is, to enable use as a dialysis treatment by the medical treatment tool 1A similar specifications for dialysis treatment of the, same effects as the dialysis treatment device 1A can enjoy. そして、医療用処置具1A・1Bのいずれも下記説明の肺塞栓症治療用として有用に活用できる。 Then, it usefully utilize any of the medical treatment tool 1A · 1B as a pulmonary embolism therapy following description.

即ち、飛行機エコノミークラス症候群と呼ばれる旅行者血栓症や、手術中・手術後の長時間寝たきり等によって下肢または骨盤内の静脈で形成された血栓が、肺に運ばれて肺動脈に詰まって心肺停止をもたらす症状において、静脈へ本発明の治療用処置具1A・1Bの膨縮径部を挿入して血栓を捕獲回収することによって、血栓の肺への移動を防止する治療が可能にして、特に医療用処置具1Bの膨径変体6C・6Dの二重構造のものは、その捕獲回収作用が特段に的確にできる。 That traveler thrombosis called airplane economy class syndrome or vein formed thrombus in the lower limbs or pelvic by long bedridden etc. after intraoperative-surgery, a cardiopulmonary arrest clogged be carried to the lungs in the pulmonary artery results in symptoms, by inserting a deflated diameter of a treatment instrument 1A · 1B of the present invention into a vein to capture recovered thrombus, and can be treated to prevent movement of the thrombus lungs, especially medical those of the double structure of the bulge variant 6C · 6D of use treatment instrument 1B, the capture recovery action can appropriately to particular.

次に図7〜図10を参照して医療用処置具1A・1B共通の他の態様実施例を説明する。 Next will be described another embodiment example of a common medical treatment tool 1A · 1B with reference to Figs. 即ち、図7のものは、前記各実施例の膨径変体6の外周の全部または2/3等の1部に「ポリウレタン・ポリエステル・シリコンゴム等から成る50〜60ミクロン膜厚にして無孔シートまたは微細孔シートの弾性質被覆20」が覆着付設されている。 That is, those in FIG. 7, the respective embodiments of the bulge variant 6 the outer periphery of the whole or 2/3 50-60 micron film thickness to nonporous consisting "polyurethane, polyester, silicone rubber or the like to a part of such a elastic quality coated sheet or microporous sheet 20 'is covered adhesive attached. この実施例のものは、被覆20によって病変部Pから剥離した微細異物の捕捉回収が高能率にできると共に血管壁を傷めるおそれはない。 Those of this embodiment, the capture collection of fine foreign matter peeled off from the lesion P by the coating 20 does not damage the vessel wall is possible with high efficiency.

次に図8を参照して、前記基本形態の医療用処置具1A・1Bに設ける膨径変体6の膨径度のセットロック手段の実施例を説明する。 Referring now to FIG. 8, an embodiment of a bulge of the set locking means upset variant 6 provided on a medical treatment tool 1A · 1B of the base form.

詳しくは、主線条部2の後端は治療時に体外に出す手元操作部10に連結されており、この手元操作部10は、後端外周を雄ねじ部16に成して主線条部2の後端を連結した中空管体のボス部15と、このボス部15の雄ねじ部16に螺合する雌ねじ部17を前端内周に有して操作用芯材3を中空部に挿通する中空管体の進退操作部14との2部材の組合せから成り、この進退操作部14の回転操作によるボス部15との相対進退によって操作用芯材3の進退操作(主線条部2に対する進退操作)ができる。 Specifically, the rear end of the main linear portions 2 is connected to the hand operation unit 10 to issue the body during treatment, the hand control unit 10, after the main linear portions 2 forms a rear end outer periphery a male screw portion 16 a boss portion 15 of the hollow tube body connecting the ends, through which the internal thread portion 17 operating core member 3 has a circumferential inside front and screwed to the external thread portion 16 of the boss 15 into the hollow portion hollow consists of two members combination of the forward and backward operating unit 14 of the tube, the advancing and retracting operation portion 14 rotating operation relative forward and backward by reciprocating operation of the operating core material 3 the boss portion 15 by the (forward and backward operations for the main linear portions 2) can.

即ち、主線条部2に内挿した操作用芯材3は後端が手元操作部10の進退操作部14に連結されており、この進退操作部14の押し引き操作によって主線条部2に内挿した操作用芯材3を進退させ、膨縮径部5の長さ変化による膨径変体6と縮径変体ができる。 That is, the main linear portions 2 operating core 3 interpolated in is connected to the forward and backward operating unit 14 of the rear end operation portion 10, the inner by pushing and pulling operation of the reciprocating operation unit 14 to the main linear portions 2 to advance and retract the operation core material 3 with interpolation can upset variant 6 and shrink deformation member according to the length change of the inflation and deflation diameter portion 5. そして、そのボス部15の雄ねじ部16にはロックナット18が螺合されており、このロックナット18を進退操作部14の前端に接合させて締付けることによって、ボス部15と進退操作部14の相対位置をロックして膨径変体6の膨径度を最適に保持したり、解除できるセットロック手段が設定されている。 And that the external thread portion 16 of the boss portion 15 and the lock nut 18 is screwed, by tightening by joining the lock nut 18 to the front end of the forward and backward operating unit 14, a boss portion 15 of the forward and backward operating unit 14 or optimally retain the upset of the bulge variant 6 by locking the relative position, set the locking means can be released is set.

以上のセットロック手段を有するのものは、操作用芯材3と主線条部2の相対位置のセットロックと解除が可能にして、膨径変体6のサイズを病変部の大小多様サイズの所要径にマッチングさせてセットロックして当該治療ができるので、治療性が向上すると共に長時間治療も可能になる特有の作用効果がある。 Or more of those having a set locking means, thereby enabling the release the operating core member 3 and set locks the relative position of the main linear portions 2, the required size of the large and small various sizes of lesion size bulge variant 6 since it is the therapeutic sets locked by matching, there is a peculiar function and effect for a long time treatment also becomes possible with increased therapeutic properties. なお、このセットロック手段は外側・内側主線条部2A・2Bを、ボス部15に連結することによって医療用処置具1Bにも適用する。 Incidentally, the set locking means the outer-inner main linear portions 2A-2B, also be applied to medical treatment tool 1B by connecting the boss portion 15.

次に図9に示すものは、前記基本形態のものにおいて膨縮径部5以外の主線条部2・2Aの主要部が、弾性質薄肉の鞘管21に遊挿されており、この鞘管21が外周を構成して血管内挿入する形態に成っている。 Then as shown in FIG. 9, the main portion of the main linear portions 2 · 2A except deflated diameter portion 5 in those of the basic form are loosely inserted into the elastic quality thin sheath pipe 21, the sheath tube 21 is made in the form of inserting a blood vessel to constitute an outer periphery. この鞘管21つきのものは若干の径大をもたらすものの鞘管21の内周も薬液Mの液体流路9として活用したり、鞘管21の内側遊隙を剥離した小血塊片等の吸引回収路として活用できる。 The sheath pipe 21 Tsukinomono or utilized as a liquid flow path 9 of the inner circumferential also chemical M of sheath pipe 21 which leads to some large diameter, the suction recovery of such small clot pieces was peeled off the inner clearance of the sheath tube 21 It can be used as a road.

次に図10に示す他の態様実施例を説明する。 Next will be described another embodiment embodiment shown in FIG. 10. 即ち、まず図10(A)に示すものは主線条部2の中空撚線コイル体4のコイル素線が、図示7A・7Bのようにステンレス鋼線・Ni−Ti合金線・タングステン線等の異種金属の組合せに成っている。 That is, first 10 to that shown in (A) is the main linear portions 2 the coil wires of the hollow stranded-wire coil body 4, stainless steel wire, Ni-Ti alloy wire, tungsten wire or the like as shown 7A-7B It is made on the combination of dissimilar metals. このNi−Ti合金線使用のものは膨径変体6の形状記憶性・超弾性特性によって反復使用による曲りぐせ発生の防止と特段の形状安定性を図ることができる。 The Ni-Ti as the alloy wire used it is possible to prevent the special shape stability bending favorite phrase generated by repeated use by the shape memory property and super elastic property of the upset variant 6.

次に図10(B)のものは主線条部2の中空撚線コイル体4が円形加工後にスエージング加工または外周ダイス引き加工によって外周が強制縮径加工されている。 Next, FIG. 10 (B) those are primarily linear portions 2 of the hollow stranded-wire coil body 4 outer periphery by swaging or the outer peripheral die draw processing is forcibly reduced in diameter after circular machining. この縮径加工形態のものは、縮径による細径化と加工による剛性向上効果があり、長手方向または径方向の縮径部位および縮径度を調整することによって長手方向の先柔後剛の好ましい形態設定が可能になる。 Those of the diameter reduction mode, is rigid effect of improving the working diameter reduction by diameter, in the longitudinal direction by adjusting the reduced diameter portion position and downsizing of the longitudinal or radial previously soft after Gou the preferred form setting becomes possible.

そして、図10(C)のものは主線条部2の中空撚線コイル体4のコイル素線7Cが断面矩形状の異形形状に設定されている。 Then, those of FIG. 10 (C) are coil wires 7C of main linear portions 2 of the hollow stranded-wire coil body 4 is set to a rectangular cross section of irregular shape. この平板素線を用いると主線条部2の外径細径化または「液体流路9として活用する内径の増径化による流路拡大」が可能になるメリット作用がある。 There is a merit action becomes possible "flow channel expansion by increasing diameter of the inside diameter to utilize as a liquid passage 9" outside diameter reduced in diameter or major linear portions 2 With this flat wire.

一方、図10(D)のものは膨縮径部5の両端の主線条部2の外周に、膨縮径部5の反復変体の応力を受ける外周を押えロックする「コイル体・リング体」等からなる変形防止用の結束部22が施してある。 On the other hand, the main outer periphery of the linear portions 2 at both ends of the expansion and contraction diameter portion 5 is that of FIG. 10 (D), to lock pressing the outer peripheral stressed iteration variants of inflation and deflation diameter portion 5 "coil body ring member" bundling portion for preventing deformation formed of like 22 are subjected. この図10(D)のものは、その部位の外側チューブ体2の変体反復による「変形・ほぐれ」を防止するので膨縮径部5の変体形状が安定して変体反復性が向上する。 Those of FIG. 10 (D) variants repeatability is improved variant shape of inflation and deflation diameter 5 stably so prevent "loose deformation or" by variants iteration of the outer tube body 2 at that site. そして、結束部22を放射線不透過材にすると体腔内の膨径変体6の視認性が確保できる。 Then, the bundling unit 22 visibility upset variant 6 of the body cavity when the radiopaque material can be secured.

なお、主線条部2の中空撚線コイル体4のコイル素線7は、治療中の視認性を確保する金・白金・タングステン等の放射線不透過線にしたり、異種材質の組合せにしたり、単線にすることがあり、さらに手元操作部10は(図1参照)、指先によってスライド移動させる指先操作片11の形態等にすることがあり、前記セットロック手段は、別物品クランプによるクランプロック形態・クランプピンのセットロックでも良い。 The main linear portions 2 of the hollow stranded-wire coil wire 7 of the coil body 4, or the radiopaque, such as gold, platinum-tungsten to ensure visibility during the treatment, or a combination of different materials, a single wire may be, the operation portion 10 further (see FIG. 1), may be in the form like a fingertip operation piece 11 for sliding the finger tip, the set locking means, the clamp locked configuration, due to different thing piece clamp it may be set the lock of the clamp pin.

さらに、中空撚線コイル体4の外層被覆Cは、膨径時の操作用芯材3の引張りによる圧縮反力を円滑に享受するため、比較的硬質材料が好ましく、熱可塑性樹脂のみならず「フェノール樹脂・エポキシ樹脂等の熱硬化性樹脂」でも良く、またステンレス鋼管・アルミニウム管等によって形成しても良い。 Further, the outer layer sheath C of the hollow stranded-wire coil body 4, in order to smoothly receive the compression reaction force of the pulling operation for the core 3 during upset, not relatively hard material is preferably a thermoplastic resin only " phenolic resins and thermosetting resins of an epoxy resin "even better, or may be formed of stainless steel, aluminum tubes or the like. そして操作用芯材3は可撓性中空線・可撓性中実線のいずれの形態であっても良い。 The operating core 3 may be in any form of solid flexible hollow wire-flexible in. そして(図5参照)前記の血液透析治療用等に用いるものにおいて、操作用芯材3内を流体流路として用いる場合は、図示点線のように操作用芯材3を伸長して、その端部に「進退操作部14に固定した接続具24」を設け、血液透析部23から引き出したホース25に接続する構造にすることがある。 And in those used in (see FIG. 5) the blood dialysis treatment, etc., when using the operation core 3 as a fluid flow path, it extends the operating core 3 as shown dotted, the end provided "reciprocating operation unit 14 connector 24 fixed to" separate component, it may be structured to connect to a hose 25 pulled out from the hemodialysis unit 23.

第1発明の医療用処置具の基本形態を示し、(A)はその正面図、(B)はその膨径変体の説明図、(C)は膨縮径部の構造説明図、(D)(E)はその作用説明図 The basic form of the medical treatment tool of the first aspect of the invention, (A) is its front view, (B) is a diagram of the upset variants, (C) the structure diagram of the inflation and deflation diameter, (D) (E) thereof acts illustration 第2発明の医療用処置具の基本形態を示し、(A)はその正面図、(B)はその膨径変体の説明図、(C)は膨縮径部の構造説明図、(D)はその作用説明図 The basic form of the medical treatment tool of the second aspect of the invention, (A) is its front view, (B) is a diagram of the upset variants, (C) the structure diagram of the inflation and deflation diameter, (D) the action illustrations 第1発明の医療用処置具の実施例を示し、(A)はその要部正面図、(B)(C)はその作用説明図 Shows an embodiment of a medical treatment tool of the first aspect of the invention, (A) is the front view of the main part, (B) (C) is its action illustration 第1発明の医療用処置具の他の実施例を示し、(A)はその要部正面図、(B)(C)はその作用説明図 Shows another embodiment of a medical treatment tool of the first aspect of the invention, (A) is the front view of the main part, (B) (C) is its action illustration 第1発明の医療用処置具の他の実施例を示し、(A)はその全体正面図、(B)はその作用説明図 Shows another embodiment of a medical treatment tool of the first aspect of the invention, (A) is the overall front view, (B) is its operation explanatory diagram 第2発明の医療用処置具の他の実施例の要部説明図 Explanatory drawing of the main part of another embodiment of a medical treatment tool of the second aspect of the present invention 本発明の医療用処置具の他の実施例の要部説明図 Explanatory drawing of the main part of another embodiment of a medical treatment tool of the present invention 本発明の医療用処置具のセットロック手段の1実施例の説明図 Illustration of one embodiment of a set locking means of the medical treatment tool of the present invention 本発明の医療用処置具の他の実施例の要部説明図 Explanatory drawing of the main part of another embodiment of a medical treatment tool of the present invention 本発明の医療用処置具の他の実施例を示し、(A)〜(D)ともその要部説明図 Shows another embodiment of a medical treatment tool of the present invention, the main portion explanatory view also (A) ~ (D)

符号の説明 DESCRIPTION OF SYMBOLS

1A 第1発明の医療用処置具1B 第2発明の医療用処置具2 主線条部2A 外側主線条部2B 内側主線条部3 操作用芯材4 中空撚線コイル体5 膨縮径部6 膨径変体7 コイル素線9 液体流路10 手元操作部14 進退操作部15 ボス部18 ロックナット20 弾性質被覆21 鞘管22 結束部C 外層被覆D 体腔内異物F 血流M 薬液P 病変部T 血管 1A first medical treatment tool 1B second aspect of the medical treatment tool 2 main linear portions 2A outside main linear portions 2B inner main linear portions 3 operating core 4 hollow stranded-wire coil body 5 expanded and contracted diameter portion 6 Rise of the Invention diameter change body 7 foreign matters coil wire 9 the liquid flow path 10 hand operation portion 14 forward and backward operating unit 15 boss 18 the lock nut 20 elastically electrolyte coating 21 the sleeve pipe 22 bundling unit C outer layer sheath D cavity F bloodstream M drug solution P lesion T blood vessel

Claims (12)

  1. 細長可撓性の主線条部の先端部位に体腔内治療部を設けた医療用処置具において、前記主線条部が操作用芯材を内挿した中空撚線コイル体から成ると共に、前記体腔内治療部が、前記中空撚線コイル体のコイル素線から成る膨縮径部の複数スパン連設にして、前記操作用芯材のプル・プッシュ操作によって、前記膨縮径部のコイル素線によるバスケット状膨径変体と、該バスケット状膨径変体からの縮径変体を自在にした構造を特徴とする医療用処置具。 Elongate flexible distal end portion of the main linear portions in a medical treatment tool having a body cavity treatment portion, with a hollow stranded-wire coil body said main linear portions are interpolated the operating core, the body cavity treatment portion, and a plurality spans continuously provided for inflation and deflation diameter portion consisting of coil wires of the hollow stranded-wire coil body, by a pull-push operation of the operating core material, by the coil wire of the inflation and deflation diameter basket-like upset variants and, medical treatment tool, wherein the structure to freely shrink deformation body from the basket-shaped bulge variants.
  2. 複数スパン配設の膨縮径部が、相互に異なる長さに設定された請求項1に記載の医療用処置具。 Deflating diameter portion of the plurality span arrangement is, medical treatment instrument according to claim 1 which is set to different lengths.
  3. 細長可撓性の主線条部の先端部位に体腔内治療部を設けた医療用処置具において、前記主線条部が、操作用芯材を内挿した中空撚線コイル体から成る外側主線条部と内側主線条部の2層管構造にして、前記体腔内治療部が、前記2層の中空撚線コイル体のコイル素線から成る内外2層の膨縮径部にして、前記操作用芯材のプル・プッシュ操作による前記膨縮径部のコイル素線による内包外包形態の2層のバスケット状膨径変体と、該バスケット状膨径変体からの縮径変体を自在にした構造を特徴とする医療用処置具。 A medical treatment tool having a body cavity treatment unit to the main linear portions of the distal end portion of the elongate flexible, the main linear portions is outside main linear portions consisting of hollow stranded-wire coil body with interpolation of the operating core in the two-layer pipe structure of inner main linear portions and said body cavity treatment section, in the deflated diameter portion of the inner and outer two layers of coil wire of the hollow stranded-wire coil of the two layers, the operation for core and wherein two layers and a basket-like upset variant of the enclosed outer hull form according to the coil wires of the inflation and deflation diameter portion by the pull-push operation of wood, a structure in freely shrink deformation body from the basket-shaped bulge variant medical treatment instrument to be.
  4. 外側主線条部と内側主線条部の中空撚線コイル体のコイル撚り方向が、相互に逆方向の組合せから成る請求項3に記載の医療用処置具。 Outer main linear portions and the coil lay direction of the inner main linear portions of the hollow stranded-wire coil body, a medical treatment instrument according to claim 3 comprising a reverse combination with one another.
  5. 主線条部または外側主線条部に可撓性鞘管を設けた請求項1〜請求項4のいずれかに記載の医療用処置具。 Medical treatment instrument according to any one of claims 1 to 4 in which a flexible sheath tube to the main linear portions or the outer main linear portions.
  6. 中空撚線コイル体の内周または操作用芯材の中空部を液体流路に成す請求項1〜請求項5のいずれかに記載の医療用処置具。 Medical treatment instrument according to any one of claims 1 to 5 forming the hollow portion of the inner peripheral or operating core of the hollow stranded-wire coil body in the liquid flow path.
  7. 操作用芯材のプル・プッシュ操作の手元操作部に、主線条部と操作用芯材の相対位置のセットロック手段を設けた請求項1〜請求項6のいずれかに記載の医療用処置具。 The operation portion of the pull-push operation of the operating core material, medical treatment tool according to any one of claims 1 to 6 in which a set locking means of the relative position of the main linear portions and the operation core material .
  8. 膨縮径部に、膨大変体の全周または一部を被覆する弾性質被膜を設けた請求項1〜請求項7のいずれかに記載の医療用処置具。 The inflation and deflation diameter, medical treatment tool according to any one of claims 1 to 7 in which an elastic membrane coating covering the entire circumference or a part of the huge variant.
  9. 中空撚線コイル体のコイル素線が、単線または撚り線の撚合線から成る請求項1〜請求項8のいずれかに記載の医療用処置具。 Coil wires of the hollow stranded-wire coil body, a medical treatment instrument according to any one of claims 1 to 8 comprising a twisted wire of solid or stranded wire.
  10. 中空撚線コイル体のコイル素線が、異種金属の組合せから成る請求項1〜請求項8のいずれかに記載の医療用処置具。 Coil wires of the hollow stranded-wire coil body, a medical treatment instrument according to any one of claims 1 to 8 comprising a combination of dissimilar metals.
  11. 中空撚線コイル体のコイル素線が、異形断面形状から成る請求項1〜請求項8のいずれかに記載の医療用処置具。 Coil wires of the hollow stranded-wire coil body, a medical treatment instrument according to any one of claims 1 to 8 consisting of irregular cross-sectional shape.
  12. 中空撚線コイル体のコイル外周が、縮径加工された形状から成る請求項1〜請求項の8いずれかに記載の医療用処置具。 Coil outer periphery of the hollow stranded-wire coil body, a medical treatment tool according to 8 any one of claims 1 consisting of diameter reduction shape.
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