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JP4102409B2 - Suture and ligature applier - Google Patents

Suture and ligature applier
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JP4102409B2
JP4102409B2JP2006102022AJP2006102022AJP4102409B2JP 4102409 B2JP4102409 B2JP 4102409B2JP 2006102022 AJP2006102022 AJP 2006102022AJP 2006102022 AJP2006102022 AJP 2006102022AJP 4102409 B2JP4102409 B2JP 4102409B2
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suturing
ligating
tool
proximal end
legs
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俊哉 菅井
佳仁 清水
直樹 内山
敏彦 鈴田
裕之 永水
稔 鶴田
義清 柴田
晋一 西垣
義直 大明
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Olympus Corp
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Translated fromJapanese

この発明は、主に外科手術に使用され、生体組織を縫合・結紮等をするための縫合・結紮具アプライヤーに関する。  The present invention relates to a suturing / ligating applier for use in surgical operations and for suturing / ligating biological tissue.

従来、生体組織の縫合・結紮は針糸あるいは金属や樹脂製のクリップ・ステープルによって行われていた。これらのうち金属製のクリップ・ステープルは、血管等の脈管を結紮する場合には特許文献1,2に示すような形状のクリップを使用し、組織を縫合する場合には特許文献3に示すような形状のステープルを使用していた。  Conventionally, suture and ligation of living tissue has been performed with a needle thread or a clip or staple made of metal or resin. Among these, metal clips and staples use a clip having a shape as shown inPatent Documents 1 and 2 when ligating a blood vessel or the like, and show apatent document 3 when a tissue is sutured. A staple having such a shape was used.

また、現在のクリップの場合、特許文献4、5に示すような連発式のものが一般的である。縫合・結紮具の変形がし易いように、特許文献6のように基端部の厚みを薄くしたものも知られている。
米国特許第3,326,216号明細書米国特許第4,844,066号明細書米国特許第3,643,851号明細書米国特許第4,325,376号明細書米国特許第4,325,216号明細書米国特許第4,449,530号明細書
Further, in the case of the current clip, a continuous type as shown inPatent Documents 4 and 5 is generally used. In order to facilitate the deformation of the suturing / ligating tool, there is also known a technique in which the thickness of the base end portion is reduced as inPatent Document 6.
US Pat. No. 3,326,216 U.S. Pat. No. 4,844,066 US Pat. No. 3,643,851 U.S. Pat. No. 4,325,376 U.S. Pat. No. 4,325,216 U.S. Pat. No. 4,449,530

これらの従来技術において、血管等の脈管を結紮するためのクリップは特許文献2,4のように、クリップの脚の部分を外周からジョーによって圧縮変形することによって取り付けられていたが、脚の部分を外周から圧縮するというクリップの変形の方法のために、どうしてもアプライヤーの構造が複雑にならざるを得なかった。  In these prior arts, a clip for ligating a blood vessel or the like was attached by compressing and deforming the leg portion of the clip from the outer periphery with a jaw as inPatent Documents 2 and 4, Due to the clip deformation method of compressing the part from the outer periphery, the structure of the applier must be complicated.

さらに、アプライヤーの構造が複雑なために特に内視鏡下外科手術において使用する場合、その挿入径を細くすることが難しく、一般的にはφ10mm以上の径となってしまい、その他の処置具の挿入径がφ5mm程度なのに対して倍の太さとなっており、その倍の太さの孔を人体に開けるために低侵襲という内視鏡下外科手術のメリットを損なっていた。また、その変形方法がジョーによって挟むような動作となるため、万一クリップが装填されなかった場合等に、ジョーによって直接脈管を把持して損傷してしまうこともあった。  Furthermore, since the structure of the applier is complicated, it is difficult to reduce the insertion diameter, particularly when used in endoscopic surgery, and generally the diameter is 10 mm or more. The insertion diameter is twice as large as that of φ5 mm, and the advantage of endoscopic surgery, which is minimally invasive, is incurred in order to open a hole of that double thickness in the human body. Further, since the deformation method is an operation to be sandwiched between the jaws, the vascular vessel may be directly gripped and damaged by the jaws in the event that a clip is not loaded.

また、特許文献3の場合には、その構造はクリップに比べて簡単であり、万一ステープルが装填されなかった場合にも、その動作によって組織を損傷する危険性は少ないが、そのステープルの形状のために組織の縫合はできても脈管の結紮をすることはできなかった。  Further, in the case ofPatent Document 3, the structure is simpler than that of a clip, and even if staples are not loaded, there is little risk of damaging the tissue by the operation. Therefore, even if the tissue was sutured, the vessel could not be ligated.

また、従来、血管等の脈管を結紮する場合には特許文献1や特許文献2のような形状の金属製クリップが用いられており、現在では特許文献5のような連発式アプリケーターのものが用いられている。  Conventionally, when a vessel such as a blood vessel is ligated, a metal clip having a shape as in Patent Document 1 orPatent Document 2 has been used, and a continuous applicator as inPatent Document 5 is currently used. It is used.

これらのクリップはその2本の脚部の脚間距離が結紮する目的の脈管の直径以上必要で、その脚部の長さも目的の脈管の直径以上の距離を有している必要があった。また、その2本の脚部を連結している基端部はクリップを変形させやすくするための略三角形状となっていたが、それによってクリップ全長が結紮のための必要な長さ以上に長くなっており、不必要に大きな残留物を生体内に留めることとなっていた。  These clips need to have a distance between the legs of the two legs that is greater than the diameter of the intended vessel to be ligated, and the length of the legs must also be greater than the diameter of the intended vessel. It was. In addition, the base end portion connecting the two leg portions has a substantially triangular shape for facilitating deformation of the clip, so that the entire length of the clip is longer than the length necessary for ligation. Therefore, an unnecessarily large residue is to be kept in the living body.

さらに、一般的にクリップは、特許文献4のようにアプライヤーの操作部とジョーの間に順列状態で貯蔵されているが、クリップの長さが長いために貯蔵できるクリップの数は大体20個以下となっており、それ以上にクリップを貯蔵することができなかった。  Further, generally, the clips are stored in a permutation state between the operation portion of the applier and the jaw as inPatent Document 4, but the number of clips that can be stored is about 20 because the length of the clips is long. It was as follows, and the clip could not be stored any more.

さらに、特許文献3のようなステープルの場合、基端部を後方から押圧することによって変形させていたが、その変形方法のために変形させる際に強い力量が必要であり、そのためにアプライヤー本体の操作手段において操作手段を操作する力量の数倍の力量を発生させる必要があった。この際にモーメントの関係によって操作手段を操作するストロークが、操作力量に対して作動力量を増大させればさせる程、増加することは避けられないために、その操作ストロークが大きくなりがちであった。  Further, in the case of the staple as inPatent Document 3, the base end portion is deformed by pressing it from the rear side, but a strong force is required when deforming for the deformation method. In this operating means, it was necessary to generate a force several times larger than the force required to operate the operating means. At this time, the stroke for operating the operating means due to the moment relationship inevitably increases as the operating force increases with respect to the operating force, and therefore the operating stroke tends to increase. .

また、特許文献1,2,4のようなクリップの場合には、前述のようにその変形に必要な力量を低減させるためにクリップの基端部を略三角形状としていたため、クリップの大きさが不必要に大きくなっており、生体内部に不必要に大きな残留物を残す、あるいはアプライヤー内部に数多くのクリップを貯蔵できないという問題点があった。  In addition, in the case of a clip as inPatent Documents 1, 2, and 4, the base end portion of the clip has a substantially triangular shape in order to reduce the amount of force required for the deformation as described above. Has become unnecessarily large, leaving unnecessarily large residues inside the living body, or being unable to store many clips inside the applier.

すなわち、図28および図29に示すように、従来の縫合・結紮具51は生体内に留置される関係上、生体に対して毒性等が無くMRIのアンチアーキファクト性を確保するTi合金等のチタン材で製造されている。一般に直径Dの脈管50を結紮するためには脚部52の長さが約2倍程度必要である。また、当然前記2本の脚部52間距離L1 はL1 ≧Dとなっていなくてはならない。ここで従来技術の場合には縫合・結紮具51を変形させやすくするために、基端部53が角度θの略三角形状となっている。そのために全長はL2 +mcosθとなっている。  That is, as shown in FIG. 28 and FIG. 29, the conventional suturing / ligatingtool 51 is indwelled in the living body, and is not toxic to the living body. Manufactured from titanium. Generally, in order to ligate thevessel 50 having the diameter D, the length of theleg portion 52 is required to be about twice as long. Naturally, the distance L1 between the twolegs 52 must satisfy L1≥D. Here, in the case of the prior art, thebase end portion 53 has a substantially triangular shape with an angle θ in order to easily deform the suture /ligator 51. Therefore, the total length isL 2 + m cos θ.

そして、アプライヤーに順列状態に貯蔵した場合、図29に示すように、縫合・結紮具51の2つにつきnだけの無駄な長さが必要となり、縫合・結紮具51の数が多くなればなる程その長さは増大し、結果として貯蔵部に貯蔵できる縫合・結紮具51の数が減少してしまう。最近行われているアドバンス手技と呼ばれる先進的な内視鏡下外科手術において、従来のアプライヤーに貯蔵されている20個の縫合・結紮具51よりも多くの縫合・結紮具51を必要とするが、30個程度必要とされることは少ない。  When the appliers are stored in a permuted state, as shown in FIG. 29, a wasteful length of n is required for each of the two stitching /ligating tools 51, and the number of stitching / ligatingtools 51 increases. The length increases, and as a result, the number of stitching / ligatingtools 51 that can be stored in the storage section decreases. In an advanced endoscopic surgical operation called an advanced procedure that is being performed recently, more sutures andligatures 51 are required than 20 suture andligatures 51 stored in a conventional applier. However, about 30 are rarely required.

ところが、前述のように従来技術では一般に20個しか貯蔵できないので、このような場合には2本のアプライヤーを使用することになる。しかし、アプライヤーは一般にディスポーザブルなので2本目のアプライヤーの残りの10個以上の縫合・結紮具51は無駄となってしまう。  However, as described above, the prior art can generally store only 20 pieces, and in such a case, two appliers are used. However, since the applier is generally disposable, the remaining ten or more suture /ligators 51 of the second applier are wasted.

このような状況に対して、特許文献5のように基端部の厚みを薄くすることによって変形しやすくしているものもあったが、この場合、基端部の幅が広くなっているので、それを貯蔵しているアプライヤーが太くなってしまうという問題もあった。  For such a situation, there are some which are easily deformed by reducing the thickness of the base end portion as inPatent Document 5, but in this case, the width of the base end portion is wide. There was also a problem that the applier that stored it became thick.

さらに、従来のクリップあるいはステープルの2本の脚部の近接する部分には特にお互いを係合させるような構造がないため、実際に組織を縫合・結紮した際に2本の脚部が互いに対向して近接せずにずれてしまうこともあり、そのような場合には確実な縫合・結紮に支障をきたすこともあった。  Furthermore, since the adjacent portions of the two legs of the conventional clip or staple are not particularly structured to engage each other, the two legs face each other when the tissue is actually sutured or ligated. In such a case, there is a case where reliable suturing / ligating is hindered.

前記クリップあるいはステープルでは取付手段とクリップあるいはステープルの係合手段が設けられていないため、生体組織にクリップあるいはステープルを取り付ける際に、取り付けが完了する前に脱落してしまったり、取り付けの最中に外乱によってクリップあるいはステープラーの向きが変化してしまう恐れがあった。  Since the clip or staple is not provided with attachment means and clip or staple engagement means, when the clip or staple is attached to the living tissue, it may fall off before the attachment is completed, or during the attachment. The direction of the clip or stapler may change due to disturbance.

さらに、前記クリップあるいはステープルで生体組織を縫合・結紮する際に、取り付けた後にクリップあるいはステープルが生体組織から滑って脱落してしまうことがあり、その防止のためにクリップあるいはステープルに滑り止めを設ける必要があった。  Furthermore, when a biological tissue is sutured or ligated with the clip or staple, the clip or staple may slip off from the biological tissue after being attached, and the clip or staple is provided with a non-slip to prevent this. There was a need.

この発明は、前記事情に着目してなされたもので、その目的とするところは、生体組織をより確実に縫合・結紮できる縫合・結紮具アプライヤーを提供することにある。  The present invention has been made paying attention to the above circumstances, and an object of the present invention is to provide a suture / ligator applier that can suture and ligate a living tissue more reliably.

この発明は、前記目的を達成するために、請求項1は、先端と基端とを有する細長の2本の脚部とこの2本の脚部の間に生体組織を挿入可能にこの脚部の基端と連結する基端部とを有し、前記2本の脚部は略平行状態で、これら脚部と前記基端部とによって囲まれた空間を有し、さらに前記基端部に他の部分より折れ曲りやすい折れ曲り部を有する縫合・結紮具を用い、生体組織を縫合結紮する縫合・結紮具アプライヤーであって、
先端と基端とを有する細長の挿入部と、前記挿入部の先端側に設けられ、前記縫合・結紮具の前記空間内に位置し、前記基端部の長手方向の中間部を支持する支持部材と、前記挿入部に対して前後方向に移動可能に設けられ、先端部に前記縫合・結紮具の基端部の中間部を避け、両端側を前記挿入部の先端方向に押圧して前記縫合・結紮具を塑性変形させる2箇所の押圧部を有する押圧手段と、前記挿入部の基端に設けられ、前記挿入部に対して前記押圧手段を移動させる操作手段とを備え、前記支持部材は、前記縫合・結紮具の基端部における長手方向の中間部を支持し、前記押圧手段は、前記操作手段の操作により前記挿入部の先端方向に移動することにより、前記縫合・結紮具の基端部における長手方向の両端部を前記2箇所の押圧部で同時に押圧して前記縫合・結紮具の前記折り曲げ部を折り曲げ、前記2本の脚部の先端同士を接触させた後、前記2本の脚部同士を略平行に近接させることを特徴とする。
In order to achieve the above-mentioned object, according to the present invention, there is provided an elongated leg portion having a distal end and a proximal end, and the leg portion so that a living tissue can be inserted between the two leg portions. A base end connected to the base end, the two legs are in a substantially parallel state, and have a space surrounded by the legs and the base end, and the base end A suture / ligator applier that uses a suture / ligator having a bent portion that is easier to bend than other parts, and sutures and ligates biological tissue,
An elongated insertion portion having a distal end and a proximal end, and a support provided on the distal end side of the insertion portion and positioned in the space of the suturing / ligating tool and supporting a longitudinal intermediate portion of the proximal end portion A member and a movable portion in the front-rear direction with respect to the insertion portion,avoiding anintermediate portion of the proximal end portion of the suturing / ligating tool at the distal end portion, and pressing both ends in the distal end direction of the insertion portionA pressing meanshaving two pressing portions for plastically deforming the stitching / ligating tool; and an operating means provided at a proximal end of the insertion portion to move the pressing means relative to the insertion portion; Supports the intermediate portion in the longitudinal direction at the proximal end portion of the suturing / ligating tool, and the pressing means moves in the distal direction of the insertion portion by operation of the operating means, therebypressing part of the longitudinal end portions ofthe two positions at the proximal endAt the same time pressed by bending the bent portion of the suturing-ligation tool,after contacting the tips of the two legs, and characterized inthat substantially parallel to close the leg portions of the two.

請求項2は、請求項1の前記2本の脚部に他の部分より折れ曲りやすい折り曲げ部を有し、前記2箇所の押圧部の押圧に伴って前記基端部の折り曲げ部が折り曲げられ、前記2本の脚部の先端同士を接触した後、前記2本の脚部の折り曲げ部が前記基端部の折り曲げ部と逆方向に折り曲げられることを特徴とする。According to a second aspect of the present invention, the two leg portions of the first aspect have a bent portion that is easier to bend than other portions, and the bent portion of the base end portion is bent along withthe pressing of the two pressing portions.After the tips of the two leg portions are brought into contact with each other, the bent portions of the two leg portions are bent in thedirection opposite to the bent portion of the base end portion .

請求項3は、先端と基端とを有する細長の2本の脚部とこの2本の脚部の間に生体組織を挿入可能にこの脚部の基端と連結する基端部とを有し、前記2本の脚部は略平行状態で、これら脚部と前記基端部とによって囲まれた空間を有し、さらに前記脚部に他の部分より折れ曲りやすい折れ曲り部を有する縫合・結紮具を用い、生体組織を縫合結紮する縫合・結紮具アプライヤーであって、
先端と基端とを有する細長の挿入部と、前記挿入部の先端側に設けられ、前記縫合・結紮具の前記空間内に位置し、前記基端部の長手方向の中間部を支持する支持部材と、前記挿入部に対して前後方向に移動可能に設けられ、先端部に前記縫合・結紮具の基端部の両端側を前記挿入部の先端方向に押圧して前記縫合・結紮具を塑性変形させる押圧手段と、前記挿入部の基端に設けられ、前記挿入部に対して前記押圧手段を移動させる操作手段とを備え、前記支持部材は、前記縫合・結紮具の基端部における長手方向の中間部を支持し、前記押圧手段は、前記操作手段の操作により前記挿入部の先端方向に移動することにより、前記縫合・結紮具の基端部における長手方向の両端部を前記2箇所の押圧部で同時に押圧し、該基端部を折り曲げて前記2本の脚部の先端同士を接触させた後、前記2本の脚部の折り曲げ部を折り曲げ、前記2本の脚部同士を略平行に近接させることを特徴とする。
The third aspect of the present invention has two elongated legs having a distal end and a proximal end, and a proximal end connected to the proximal end of the leg so that a living tissue can be inserted between the two legs. The two leg portions are substantially parallel, have a space surrounded by the leg portions and the base end portion, and further have a bent portion in the leg portion that is easier to bend than other portions. A suturing / ligating applier that uses a ligation tool to sew and ligate living tissue,
An elongated insertion portion having a distal end and a proximal end, and a support provided on the distal end side of the insertion portion and positioned in the space of the suturing / ligating tool and supporting a longitudinal intermediate portion of the proximal end portion A member and movably provided in the front-rear direction with respect to the insertion portion, and by pressing both ends of the proximal end portion of the suturing / ligating tool toward the distal end of the inserting portion, A pressing means for plastic deformation; and an operating means for moving the pressing means relative to the insertion portion provided at a proximal end of the insertion portion, wherein the support member is provided at a proximal end portion of the suturing / ligating tool. supporting the middle portion in the longitudinal direction, said pressing means is moved in a distal direction of the insertion portion by operating the operation means,wherein the both ends in the longitudinal direction at the proximal end of the suture-ligatures2 andsimultaneously pressedby the pressing portion of the portion, by bending the base end portionAfter contacting the tips of serial two legs, bending the bending portion of the two legs, and characterized inthat substantially parallel to close the leg portions of the two.

この発明の縫合・結紮具アプライヤーによれば、先端と基端とを有する細長の2つの脚部とこの2つの脚部の基端と連結する基端部とを有する略コ字状の縫合・結紮具を、この脚部の先端同士から閉じるため、2つの脚部に挿入した生体組織がより外れにくくなり、より確実に生体組織を縫合・結紮することができるという効果がある。  According to the suture / ligator applier of the present invention, a substantially U-shaped suture having two elongated legs having a distal end and a proximal end and a proximal end connected to the proximal ends of the two legs. -Since the ligature is closed from the tips of the legs, the biological tissues inserted into the two legs are less likely to come off, and the biological tissues can be sutured and ligated more reliably.

以下、この発明の各実施の形態を図面に基づいて説明する。  Embodiments of the present invention will be described below with reference to the drawings.

図1〜図22は第1の実施形態を示す。図1は後述するクリップあるいはステープルである縫合・結紮具を生体組織に取り付けるアプライヤー1を示し、このアプライヤー1は、縫合・結紮具を変形させる取り付け手段2と、取り付け手段2を図示しないトラカール等を介して生体組織に挿入するための内視鏡手段である挿入部3と、取り付け手段2の操作を行う操作手段4から構成されている。また、操作手段4に対して挿入部3が回動自在となっており、その回動操作を行うためのノブ5が挿入部3の手元側の操作手段4との接合部に設けられている。  1 to 22 show a first embodiment. FIG. 1 shows an applier 1 for attaching a suturing / ligating tool, which will be described later, to a living tissue. The applier 1 has an attachingmeans 2 for deforming the suturing / ligating tool and a trocar (not shown). Theinsertion part 3 which is an endoscopic means for inserting into a living tissue through the like, and the operation means 4 for operating the attachment means 2 are configured. Further, theinsertion portion 3 is rotatable with respect to the operation means 4, and aknob 5 for performing the rotation operation is provided at a joint portion with the operation means 4 on the hand side of theinsertion portion 3. .

前記挿入部3は、図2に示すように、上下に分割された略透明な上部挿入部材6と下部挿入部材7によって構成され、両者を組み合わせた後に外套管8を被覆することにより組立られている。この外套管8は透明な熱収縮チューブによって形成され、挿入部3の内部が確認できるようになっている。  As shown in FIG. 2, theinsertion portion 3 is composed of a substantially transparentupper insertion member 6 andlower insertion member 7 which are divided into upper and lower parts, and is assembled by covering theouter tube 8 after combining the both. Yes. Theouter tube 8 is formed by a transparent heat shrinkable tube so that the inside of theinsertion portion 3 can be confirmed.

前記操作手段4は、図1に示すように、可動ハンドル9と固定ハンドル10からなっており、可動ハンドル9を固定ハンドル10に対して回動させることにより、取り付け手段2の操作を行うことができる。  As shown in FIG. 1, the operation means 4 includes amovable handle 9 and a fixedhandle 10, and the attachment means 2 can be operated by rotating themovable handle 9 with respect to the fixedhandle 10. it can.

また、操作手段4の固定ハンドル10における上部には後述するように蓋体11が取り付けられ、この蓋体11を開閉することにより、挿入部3を操作手段4に着脱したり、操作手段4の内部を洗浄・滅菌することができるようになっている。  Further, a lid body 11 is attached to the upper portion of the fixedhandle 10 of the operation means 4 as will be described later. By opening and closing the lid body 11, theinsertion portion 3 can be attached to and detached from the operation means 4, The inside can be cleaned and sterilized.

次に、前記取り付け手段2の構成について図2〜図6に示す。取り付け手段2は先端に縫合・結紮具12を取り付け時のガイドとなるガイド部材13を有し、この内部に縫合・結紮具12が装填されている。この縫合・結紮具12を装填し、生体組織に取り付ける操作は後述するようにプッシャー14によって行われる。  Next, the structure of the attachment means 2 is shown in FIGS. The attachment means 2 has aguide member 13 that serves as a guide when attaching the suturing / ligatingtool 12 to the tip, and the suturing / ligatingtool 12 is loaded therein. The operation of loading the suture /ligator 12 and attaching it to the living tissue is performed by apusher 14 as will be described later.

ガイド部材13には縫合・結紮具12の取り付け時に縫合・結紮具12を支持する支持部材、例えば支持ピン15が設けられており、これにより縫合・結紮具12は前方へ脱落せずに支持される。従来技術ではガイド部材13が無く、縫合・結紮具12を確実に保持できないために、支持ピン15を間隔をおいて2本設けていたので、縫合・結紮具12の脚部12a間距離が脚部12aの全長に対して比較的広くなっていたが、本実施形態では、押圧手段を構成する第1の押圧部としての支持ピン15を1個であるので脚部12a間距離を比較的狭くすることができ、脈管の結紮に非常に有効であるばかりか、ガイド部材13の外形や挿入部3の外径を小さくできるので、低侵襲という観点において効果がある。Theguide member 13 is provided with asupport member for supporting the suturing / ligatingtool 12 when the suturing / ligatingtool 12 is attached, for example, asupport pin 15, so that the suturing / ligatingtool 12 is supported without dropping forward. The In the prior art, since there is noguide member 13 and the suturing / ligatingtool 12 cannot be securely held, two support pins 15 are provided at an interval, so the distance between the leg portions 12a of the suturing / ligatingtool 12 is the leg. Although it is relatively wide with respect to the entire length of the portion 12a, in this embodiment, since there is only onesupport pin 15 as the first pressing portion constituting the pressing means, the distance between the leg portions 12a is relatively narrow. In addition to being very effective for ligation of the blood vessels, the outer shape of theguide member 13 and the outer diameter of theinsertion portion 3 can be reduced, which is effective in terms of minimal invasiveness.

一般的に縫合・結紮具12を生体組織に取り付けるアプライヤー1の挿入部3の外径はφ10〜12mmであるが、本実施形態の場合には前述のようなシンプルな構造によって、使用する縫合・結紮具12を収納するのに必要な幅である7mmを確保すれば良いので、さらに上部挿入部材6と下部挿入部材7の肉厚をそれぞれ0.5mmずつ確保して、挿入部3外径でφ8mmを達成している。また、従来技術では前記支持ピン15は取り付け手段2の先端から突出しており、生体組織に損傷を与える危険性も無視できなかったが、本実施形態ではガイド部材13の内部に格納されているので、生体組織に触れる恐れもない。  In general, the outer diameter of theinsertion portion 3 of the applier 1 for attaching the suturing / ligatingtool 12 to the living tissue is 10 to 12 mm, but in the case of this embodiment, the suturing to be used is performed by the simple structure as described above. -Since it is sufficient to secure 7 mm, which is a width necessary to store theligature tool 12, further secure the thickness of theupper insertion member 6 and thelower insertion member 7 by 0.5 mm each, and the outer diameter of theinsertion portion 3 And achieves φ8mm. In the prior art, thesupport pin 15 protrudes from the tip of the attachment means 2 and the risk of damaging the living tissue cannot be ignored. However, in the present embodiment, thesupport pin 15 is stored in theguide member 13. There is no fear of touching living tissue.

また、前記ガイド部材13は支持ピン15が設けられている部分以外はそれ程の強度が必要ないので、ガイド部材13を少なくとも部分的に透明として縫合・結紮動作が目視しやすくしても良く、それにより安全・確実な縫合・結紮に寄与するので、アプライヤー1の安全性が向上する。  Further, since theguide member 13 does not need to be so strong except for the portions where the support pins 15 are provided, theguide member 13 may be at least partially transparent so that the stitching and ligation operations can be easily observed. Therefore, the safety of the applier 1 is improved.

そして、第1の押圧部としての支持ピン15とにより、縫合・結紮具12を生体組織に取り付ける際に縫合・結紮具12を所定の形状に変形させるために、第2の押圧部としてのプッシャー14には凹状部16が設けられている。そして、支持ピン15とプッシャー14とによって押圧手段を構成している。そして、押圧手段によって縫合・結紮具12を生体組織に取り付けた後に、アプライヤー1から放出するためのイジェクター17がガイド部材13の内部の縫合・結紮具12の下部に取り付けられている。  The pusher as the second pressing portion is used to deform the suturing / ligatingtool 12 into a predetermined shape when the suturing / ligatingtool 12 is attached to the living tissue by thesupport pin 15 as the first pressing portion. 14 is provided with aconcave portion 16. Thesupport pin 15 and thepusher 14 constitute pressing means. Then, after attaching the suture /ligator 12 to the living tissue by the pressing means, anejector 17 for releasing from the applier 1 is attached to the lower part of the suture /ligator 12 inside theguide member 13.

ガイド部材13は挿入部3を構成している下部挿入部材7にピン17aで固定されており、下部挿入部材7の上部には仕切板18が取り付けられ、その上に縫合・結紮具12を貯蔵しておくための貯蔵手段19が設けられており、その上部に上部挿入部材6には縫合・結紮具12を下方へ抑える抑えスプリング22が取り付けられている。そして、さらに全体を前記外套管8で覆っている。これらの挿入部3を構成している部材のうち、外套管8、上部挿入部材6、下部挿入部材7は前述のように樹脂材で透明に成型されており、取り付け手段2と貯蔵手段19の状態が目視できるようになっている。  Theguide member 13 is fixed to thelower insertion member 7 constituting theinsertion portion 3 with a pin 17a. Apartition plate 18 is attached to the upper portion of thelower insertion member 7, and the suturing / ligatingtool 12 is stored thereon. A storage means 19 is provided, and a holdingspring 22 is attached to theupper insertion member 6 to hold the suturing / ligatingtool 12 downward. Further, the whole is covered with theouter tube 8. Of the members constituting theseinsertion portions 3, theouter tube 8, theupper insertion member 6, and thelower insertion member 7 are transparently molded with a resin material as described above. The state is visible.

前記プッシャー14には貯蔵手段19の最前列の縫合・結紮具12を送り出すための移送手段である掛止部20が設けられている。そして、貯蔵手段19には縫合・結紮具12が後方へ逆戻りしないようにワンウェイクラッチ21が設けられている。そして、アプライヤー1には先端部から後端部に向かって複数、例えば20個の縫合・結紮具12a〜12tが収納されているが、初期状態において収納されている縫合・結紮具12の個数は特に限定されず、目的の手技に応じて幾つでも構わない。  Thepusher 14 is provided with a latchingportion 20 which is a transfer means for sending out the suturing / ligatingtool 12 in the front row of the storage means 19. The storage means 19 is provided with a one-way clutch 21 so that the suturing / ligatingtool 12 does not return backward. The applier 1 stores a plurality of, for example, 20 stitching / ligating tools 12a to 12t from the front end portion toward the rear end portion, but the number of the suturing /ligating tools 12 accommodated in the initial state. Is not particularly limited, and any number may be used depending on the target technique.

また、後述するように本実施形態では従来技術に対して同じ個数の縫合・結紮具12ならば、その縫合・結紮具12列全体の長さを短くできるので、同一の長さの貯蔵手段19の内部に従来技術よりもさらに多くの縫合・結紮具12を貯蔵できる。  In addition, as will be described later, in the present embodiment, if the same number of stitching /ligating tools 12 is used as compared with the prior art, the entire length of the stitching /ligating tools 12 row can be shortened. More suturing andligating tools 12 can be stored in the interior of the device.

次に、前記挿入部3の略中間部から手元側の構成を図7〜図9に示す。貯蔵手段19の後部の最後部の縫合・結紮具12tにおける後部には縫合・結紮具12列を前方に付勢するためのプレート状のバッファー23が係合しており、このバッファー23はクリップ押しスプリング24によって前方に付勢されている。そして、クリップ押しスプリング24の後部はスプリングホルダー25によって挿入部3の手元側に固定されている。バッファー23は蛍光色等の目視しやすい色調に成型され、このバッファー23が縫合・結紮具12が放出される度に前方に移動することで、縫合・結紮具12の残量が判るようになっている。  Next, FIG. 7 to FIG. 9 show the configuration of theinsertion side 3 from the substantially middle part to the hand side. A plate-like buffer 23 for urging the suture /ligator 12 row forward is engaged with the rear portion of the last suture /ligator 12t at the rear of the storage means 19, and thisbuffer 23 is clipped. It is biased forward by aspring 24. The rear portion of theclip pressing spring 24 is fixed to the proximal side of theinsertion portion 3 by aspring holder 25. Thebuffer 23 is molded in a color tone such as a fluorescent color that is easy to see, and thebuffer 23 moves forward each time the suture /ligator 12 is released, so that the remaining amount of the suture /ligator 12 can be determined. ing.

また、この色調を任意に設定することにより、貯蔵されている縫合・結紮具12の数や種類等を表示するようにしても良い。あるいは、挿入部3を構成している各部品の色調を任意に設定することによって、表示しても構わない。そのような場合には例えばガイド部材13の色が青ならば縫合・結紮具の個数が20個で、赤ならば10個である等とすることができる。勿論、2種類以上の色を使用してその組み合わせによって表示しても構わない。一般に手術室では使用する機材の選択は術者の指示によって助手が行うが、助手は機材に記入されている文字等を読んで目的の機材かどうか判断するのでは無く、その形状や色等の外観ですぐに判断できる要素で判断するため、このような色識別は誤った機材選定を防止することや手技の効率化にもつながるために非常に有効である。  Further, by arbitrarily setting the color tone, the number, type, and the like of the stored sewing /ligating tools 12 may be displayed. Or you may display by setting the color tone of each component which comprises theinsertion part 3 arbitrarily. In such a case, for example, if the color of theguide member 13 is blue, the number of stitching / ligating tools may be 20, if it is red, the number may be 10. Of course, two or more colors may be used and displayed in combination. In general, in the operating room, the selection of equipment to be used is done by an assistant according to the operator's instructions, but the assistant does not judge whether it is the target equipment by reading the characters written on the equipment, but the shape, color, etc. Such color identification is very effective for preventing erroneous selection of equipment and improving the efficiency of the procedure because it is determined by an element that can be readily determined by appearance.

前記プッシャー14にはラチェットアーム26が取り付けられており、下部挿入部材7に取り付けられたラチェット歯27とによりラチェット機構28を形成しており、プッシャー14が動作の途中で戻ることによって縫合・結紮具12が取り付け手段2の内部で詰まったりすることを防止している。また、従来のようなラチェット機構ではラチェット歯27に噛み合う相手方の部品は専用の薄刃形状の部品を使用するのが一般的であるが、必要な弾性力を出したりするためにコストが嵩む部品であった。しかし、本実施形態ではラチェットアーム26は丸棒を折り曲げた構造のものであり、弾性力を出すことはその有効長を長くすることで対応しているので、コストも掛からずに簡単に成型できる部品となっている。  Aratchet arm 26 is attached to thepusher 14, and aratchet mechanism 28 is formed byratchet teeth 27 attached to thelower insertion member 7. When thepusher 14 returns in the middle of operation, a suturing / ligating tool is formed. 12 is prevented from clogging inside the attachment means 2. Further, in the conventional ratchet mechanism, it is common to use a dedicated thin blade-shaped component as a counterpart component that meshes with theratchet teeth 27, but this is a component that is costly to produce the necessary elastic force. there were. However, in this embodiment, theratchet arm 26 has a structure in which a round bar is bent. Since the elastic force is generated by increasing the effective length, theratchet arm 26 can be easily molded without incurring costs. It is a part.

次に、図10に挿入部3の手元側を示す。挿入部3の後端にはノブ5が設けられており、上下に分割された部品により構成されている。このノブ5の内部にはメインスプリング29が設けられており、プッシャー14に接続された操作棒30を常時手元側に付勢している。そして、このメインスプリング29により、一連のクリップ取り付け操作終了後に取り付け手段2と操作手段4を含めたアプライヤー1全体を初期状態に復帰させることができる。  Next, FIG. 10 shows the proximal side of theinsertion portion 3. Aknob 5 is provided at the rear end of theinsertion portion 3 and is composed of parts divided vertically. Amain spring 29 is provided inside theknob 5 and constantly biases the operatingrod 30 connected to thepusher 14 toward the hand side. Themain spring 29 can return the entire applier 1 including the attachingmeans 2 and the operating means 4 to the initial state after a series of clip attaching operations.

この操作棒30の後部は可動ハンドル9の上部に設けられている係合溝31と係合する球状部32が形成されており、操作棒30とノブ5の後部はOリング33によってシールされている。一般に内視鏡的治療においては腹腔内等において操作する空間を確保するために、気腹と呼ばれる腹腔をCO2 ガスによって膨らませた状況において治療を行う。その際に用いられるこのアプライヤー1のような処置具は、腹腔内のガスが外部に漏れないようになっている必要があるが、このアプライヤー1は前記Oリング33によって、完全にその内部が密封されているか、あるいは実用上差し支え無い程度のガス漏れに抑えられている。  Aspherical portion 32 that engages with anengagement groove 31 provided on the upper portion of themovable handle 9 is formed at the rear portion of theoperation rod 30. Theoperation rod 30 and the rear portion of theknob 5 are sealed by an O-ring 33. Yes. In general, in endoscopic treatment, treatment is performed in a situation where the abdominal cavity called a pneumoperitoneum is inflated with CO2 gas in order to secure a space for operation in the abdominal cavity or the like. The treatment instrument such as the applier 1 used at that time needs to prevent gas in the abdominal cavity from leaking to the outside. The applier 1 is completely covered by the O-ring 33. The gas leakage is suppressed to such an extent that it is sealed or is practically acceptable.

また、前述のようにプッシャー14とそれに接続される操作棒30は挿入部3の長手方向の挿入軸中心に設けられているので、前記ノブ5を操作することによって挿入部3を操作手段4に対して回動させる際に、その回動中心に位置するため、従来技術のように回動に対応するための、プッシャー14と操作棒30を連結する特別な変換手段を使用しなくても回動可能なようになっている。  Further, as described above, thepusher 14 and theoperation rod 30 connected to thepusher 14 are provided at the center of the insertion axis in the longitudinal direction of theinsertion portion 3, so that theinsertion portion 3 can be moved to the operation means 4 by operating theknob 5. When it is rotated, it is positioned at the center of rotation, so that it can be rotated without using a special conversion means for connecting thepusher 14 and the operatingrod 30 to cope with the rotation as in the prior art. It is possible to move.

次に、図11〜図14に操作手段4を示す。操作手段4は、前述したように、可動ハンドル9と固定ハンドル10、固定ハンドル10の上部に取り付けられた蓋体11からなっている。固定ハンドル10には前記挿入部3のノブ5が回動自在に取り付けられており、操作棒30の球状部32は可動ハンドル9の上部に設けられた係合溝31の内部の座金34に摺動・回動自在に係合している。  Next, the operation means 4 is shown in FIGS. As described above, the operation means 4 includes themovable handle 9, the fixedhandle 10, and the lid 11 attached to the upper part of the fixedhandle 10. Theknob 5 of theinsertion portion 3 is rotatably attached to the fixedhandle 10, and thespherical portion 32 of theoperation rod 30 slides on awasher 34 inside anengagement groove 31 provided on the upper portion of themovable handle 9. Engageable and movable.

そして、蓋体11は固定ハンドル10に対してヒンジ35によって開閉自在に取り付けられており、閉鎖時の固定はスナップフィット36によって行われる。また、蓋体11を開放させる際にはこのスナップフィット36に取り付けられている摘み37を外側に付勢することにより、スナップフィット36と固定ハンドル10の係合を解除してヒンジ35により開放する。  The lid 11 is attached to the fixedhandle 10 by ahinge 35 so as to be freely opened and closed, and is fixed by asnap fit 36 when closed. Further, when the lid 11 is opened, theknob 37 attached to the snap fit 36 is biased outward, so that the engagement between the snap fit 36 and the fixedhandle 10 is released and thehinge 35 is opened. .

操作手段4の固定ハンドル10の内部は洗浄・滅菌のために洗浄液や滅菌ガスあるいは高温蒸気や、洗浄ブラシ等の洗浄具が挿通できるように空間が開いており、その上部は前述のように蓋体11を開放することにより、確実に洗浄・滅菌可能となっており、操作手段4は繰り返し使用できるリユース製品となっている。また、操作手段4を構成する各部品は耐洗浄・滅菌性を有する金属あるいは樹脂により構成されているのは言うまでもない。  The interior of the fixedhandle 10 of the operation means 4 is open so that a cleaning liquid, sterilizing gas, high-temperature steam, or a cleaning tool such as a cleaning brush can be inserted for cleaning and sterilization. By opening the body 11, it can be reliably washed and sterilized, and the operation means 4 is a reuse product that can be used repeatedly. Needless to say, each component constituting the operation means 4 is made of a metal or resin having resistance to washing and sterilization.

また、操作棒30の球状部32は可動ハンドル9の上部の係合溝31に対して回動・摺動自在に係合しており、係合溝31は上方に開放しているので球状部32は係合溝31の上部より係合溝31の内部に挿入されることにより係合し、その逆の操作により取り外すことができる。  Thespherical portion 32 of the operatingrod 30 is engaged with the engaginggroove 31 on the upper part of themovable handle 9 so as to be rotatable and slidable. Since the engaginggroove 31 is opened upward, thespherical portion 32 is engaged by being inserted into theengagement groove 31 from the upper part of theengagement groove 31, and can be removed by the reverse operation.

そのため、前述のように蓋体11を開放して球状部32を係合溝31から取り外すことによって、挿入部3を操作手段4から取り外すことができ、この逆の手順によって挿入部3を操作手段4に取り付けることができる。これにより、挿入部3を操作手段4に対して着脱自在とすることができるので、例えば挿入部3の内部に貯蔵されている縫合・結紮具12の数の異なる挿入部3を用意しておき、目的の手技において必要となる個数の縫合・結紮具12を貯蔵している挿入部3を使用する、あるいは縫合・結紮具12を使いきってしまった挿入部3を新しい挿入部3と交換することができる。  Therefore, by opening the lid 11 and removing thespherical portion 32 from the engaginggroove 31 as described above, theinsertion portion 3 can be removed from the operation means 4, and theinsertion portion 3 is operated by the reverse procedure. 4 can be attached. Accordingly, since theinsertion portion 3 can be detachably attached to the operation means 4, for example, theinsertion portions 3 having different numbers of the suturing /ligating tools 12 stored in theinsertion portion 3 are prepared. Theinsertion section 3 storing the number of suture /ligature tools 12 necessary for the target procedure is used, or theinsertion section 3 that has used up the suture /ligature tools 12 is replaced with anew insertion section 3. be able to.

さらに、縫合・結紮具12の形状がそれぞれ異なる挿入部3を用意してその状況に応じて交換して使用する等の行ためが可能となる。一般にこのような従来技術のアプライヤー1は内部が洗浄・滅菌できないような複雑な形状となっており、さらに、挿入部3と操作手段4が取り外しできないために、その全体がディスポーザブル製品となっているが、本実施形態のように挿入部3が操作手段4に対して着脱自在となっており、前述のように操作手段4の内部が確実に洗浄・滅菌が可能となっているリユーザブル製品となっていることにより、ディスポーザブル部分が挿入部3だけとなり、操作手段4を繰り返し使用できるので無駄に捨てる部分が減るために、費用の削減はもちろんのこと、環境保全やエネルギーの節約、資源浪費の防止等の効果が得られる。  Further, it is possible to prepare theinsertion portions 3 having different shapes of the suture /ligator 12 and replace them according to the situation. In general, the conventional applier 1 has a complicated shape so that the inside cannot be cleaned and sterilized. Further, since theinsertion portion 3 and the operating means 4 cannot be removed, the whole is a disposable product. However, as in the present embodiment, theinsertion portion 3 is detachable from the operation means 4 and the reusable product in which the inside of the operation means 4 can be reliably cleaned and sterilized as described above. As a result, the disposable part is only theinsertion part 3 and the operation means 4 can be used repeatedly, so the part to be wasted is reduced. Therefore, not only cost reduction, but also environmental conservation, energy saving, resource waste Effects such as prevention can be obtained.

また、前記可動ハンドル9は支点ネジ38とナット39によって固定ハンドル10に回動自在に取り付けられており、可動ハンドル9を初期状態から閉鎖操作することによりアプライヤー1が作動する。  Themovable handle 9 is rotatably attached to the fixedhandle 10 by afulcrum screw 38 and anut 39, and the applier 1 is operated by closing themovable handle 9 from the initial state.

次に、縫合・結紮具12の形状とプッシャー14との係合について図15および図16に示す。本実施形態の縫合・結紮具12は後述するようにTi合金等のチタン材で形成されている。そして、縫合・結紮具12は略平行状態の2本の脚部121とこの脚部121を連結する基端部122を有して略コ字型に形成されている。  Next, FIG. 15 and FIG. 16 show the shape of the suturing / ligatingtool 12 and the engagement with thepusher 14. The suturing / ligatingtool 12 of the present embodiment is formed of a titanium material such as a Ti alloy as will be described later. The suturing / ligatingtool 12 has twoleg portions 121 in a substantially parallel state and abase end portion 122 that connects theleg portions 121 and is formed in a substantially U-shape.

また、プッシャー14の凹状部16の内縁部には断面が略半円形状の突起40が長手方向に亘って形成されており、縫合・結紮具12の基端部122には縫合・結紮具12が変形した際に、突起40と係合する位置に係合溝41が形成されている。これによって縫合・結紮具12が変形途中でガイド部材13から遊離した時に、縫合・結紮具12が脱落したり、外乱によってその向きが変わってしまうことを防止している。また、このような一般に線材をプレス成形して製作される縫合・結紮具12では、素材の全長に亘って同一の断面形状の方が製造しやすいので、そのような場合には縫合・結紮具12の外周面全周(脚部121の外周)に亘って係合溝41が形成されていても良い。  Aprotrusion 40 having a substantially semicircular cross section is formed on the inner edge portion of theconcave portion 16 of thepusher 14 in the longitudinal direction, and the suturing / ligatingtool 12 is formed on theproximal end portion 122 of the suturing / ligatingtool 12. Anengagement groove 41 is formed at a position to engage with theprotrusion 40 when the is deformed. Thus, when the suturing / ligatingtool 12 is released from theguide member 13 in the middle of deformation, the suturing / ligatingtool 12 is prevented from falling off or changing its direction due to disturbance. Further, in such a sewing / ligatingtool 12 that is generally manufactured by press-molding a wire, the same cross-sectional shape is easier to manufacture over the entire length of the material. In such a case, the sewing / ligating tool is used. The engaginggroove 41 may be formed over the entire outer periphery of the outer periphery 12 (the outer periphery of the leg 121).

また、縫合・結紮具12の材料であるチタン材は非常に硬く強度が高いことで知られており、塑性変形させるためには非常に強い力量を有する。そこで本実施形態の縫合・結紮具12にはプッシャー14によって変形される際に、所定の形状に変形しやすくするために脚部121および基端部122には切り欠き42が設けられており、この部分から折れ曲がるようになっている。そしてこの切り欠き42の部分はその他の部分に対して折れ曲がりやすければ良いので、切り欠き42の代わりにこの部分だけ局所的に焼きなましをする等の材質面での加工をすることによって、ヤング率を他の部分よりも比較的大きくして折れ曲がりやすくする、あるいは曲げ方向に対して他の部分よりも断面係数が比較的小さくなるように形成しても良い。  Titanium material, which is the material of the suture /ligator 12, is known to be very hard and high in strength, and has a very strong force for plastic deformation. Therefore, theleg portion 121 and thebase end portion 122 are provided withnotches 42 so that the suturing / ligatingdevice 12 of the present embodiment is easily deformed into a predetermined shape when being deformed by thepusher 14. It is designed to bend from this part. Since thenotch 42 should be easy to bend with respect to the other parts, the Young's modulus can be increased by processing on the material surface such as locally annealing instead of thenotch 42. It may be formed so that it is relatively larger than the other part to be easily bent, or the section modulus is relatively smaller than the other part in the bending direction.

次に、アプライヤー1の動作について図17〜図22に基づいて説明する。図17は縫合・結紮具12aがガイド部材13に装填され、可動ハンドル9を第1段階まで操作した状態であり、この時には操作手段4の可動ハンドル9は図1の実線の位置にある。この状態において、プッシャー14は縫合・結紮具12aを支持ピン15とで保持しており、上下方向にはガイド部材13により保持されている。また、貯蔵手段19の内部の縫合・結紮具12のうち、縫合・結紮具12bはプッシャー14に設けられている掛止部20によってクリップ抑えスプリング22に抗して仕切板18の前方の開口部43に移動しつつある。  Next, the operation of the applier 1 will be described with reference to FIGS. FIG. 17 shows a state in which the suturing / ligating tool 12a is loaded on theguide member 13 and themovable handle 9 is operated up to the first stage. At this time, themovable handle 9 of the operating means 4 is in the position of the solid line in FIG. In this state, thepusher 14 holds the suturing / ligating tool 12a with thesupport pin 15 and is held by theguide member 13 in the vertical direction. Further, of the suturing / ligatingtool 12 inside the storage means 19, the suturing / ligatingtool 12 b is an opening in front of thepartition plate 18 against theclip restraining spring 22 by a latchingportion 20 provided on thepusher 14. 43 is moving.

縫合・結紮具12の順列で縫合・結紮具12bの次の縫合・結紮具12cは縫合・結紮具12d以下後続の縫合・結紮具12がバッファー23に付勢されることによって、ワンウェイクラッチ21を乗り越えた位置に移動する位置に移動する。ワンウェイクラッチ21は金属板等の弾性部材で形成されており、その形状と相まって縫合・結紮具12を前方方向には移動可能とするが、一旦ワンウェイクラッチ21を乗り越えると後方には戻れないようになっている。  In the permutation of the suturing / ligatingtool 12, the suturing / ligatingtool 12c following the suturing /ligating tool 12b is sutured /ligating tool 12d or less. Move to the position to move over the position. The one-way clutch 21 is formed of an elastic member such as a metal plate, and in combination with the shape, the suturing / ligatingtool 12 can be moved in the forward direction. It has become.

図18に次の第2操作段階を示す。この状態では前記状態よりも可動ハンドル9が閉鎖方向に操作されることにより、プッシャー14がさらに前進し、その凹状部16の突起40により縫合・結紮具12aを前方に押す。これにより縫合・結紮具12aは支持ピン15により支持されているので、プッシャー14で押された部分が前方に折れ曲がり、切り欠き42によって所定の形状に変形して縫合・結紮具12aの先端同士が接触する。そして縫合・結紮具12aはガイド部材13から遊離していくが、変形していくに従って前述のようにプッシャー14の突起40と縫合・結紮具12aの係合溝41が係合していくので、取り付け操作中に取り付け手段2から脱落することは無い。  FIG. 18 shows the next second operation stage. In this state, when themovable handle 9 is operated in the closing direction as compared with the above state, thepusher 14 further advances, and the suturing / ligating tool 12a is pushed forward by theprojection 40 of theconcave portion 16. Thus, since the suture / ligator 12a is supported by thesupport pin 15, the portion pushed by thepusher 14 bends forward, and is deformed into a predetermined shape by thenotch 42, so that the tips of the suture / ligator 12a are aligned with each other. Contact. The suturing / ligating tool 12a is released from theguide member 13, but as it is deformed, theprojection 40 of thepusher 14 and the engaginggroove 41 of the suturing / ligating tool 12a are engaged as described above. There is no dropout from the attachment means 2 during the attachment operation.

この際に貯蔵手段19の内部の縫合・結紮具12は掛止部20によって縫合・結紮具12bが前方に移動されることにより、クリップ押しスプリング24の付勢によりさらに前方に移動する。  At this time, the suturing / ligatingtool 12 inside the storage means 19 is moved further forward by the urging of theclip pushing spring 24 when the suturing / ligatingtool 12 b is moved forward by the latchingportion 20.

さらに、図19〜図21に示すように可動ハンドル9が閉鎖操作されるに従ってプッシャー14が前進し、次第に縫合・結紮具12aが変形されていくと共に、貯蔵手段19の内部の縫合・結紮具12も前方に送られていく。そして、図21の段階で可動ハンドル9は完全に閉鎖位置に達してプッシャー14が最前部まで移動し、縫合・結紮具12aは最終形状に変化される。  Further, as shown in FIGS. 19 to 21, as themovable handle 9 is closed, thepusher 14 moves forward, and the suturing / ligating tool 12 a is gradually deformed, and the suturing / ligatingtool 12 inside the storage means 19. Will also be sent forward. Then, at the stage of FIG. 21, themovable handle 9 completely reaches the closed position, thepusher 14 moves to the forefront, and the suturing / ligating tool 12a is changed to the final shape.

この段階において縫合・結紮具12bは仕切板18の開口部43の上部に移動し、クリップ抑えスプリング22によって開口部43の内部で、プッシャー14上面に装填される。そして、後続の縫合・結紮具12は続いて前方に移動する。  At this stage, the suturing / ligatingtool 12 b moves to the upper part of theopening 43 of thepartition plate 18 and is loaded on the upper surface of thepusher 14 inside theopening 43 by theclip restraining spring 22. Then, the subsequent suturing / ligatingtool 12 continues to move forward.

この時の縫合・結紮具12の最終形状は、前記2本の脚部121の略平行に近接している部分の長さが支持ピン15を包囲している部分の長さに対して約2倍以上となっており、不必要に最終形状の長さを長くしないようになっている。  The final shape of the suturing / ligatingtool 12 at this time is such that the length of the portion of the twolegs 121 that are close to each other in parallel is approximately 2 with respect to the length of the portion surrounding thesupport pin 15. The length of the final shape is not unnecessarily increased.

次に、図22に示す段階に移る。この段階では可動ハンドル9は一連の操作を終了し、挿入部3の後端のメインスプリング29によって完全に解放位置に移動し、プッシャー14も最後位置に移動する。  Next, the process proceeds to the stage shown in FIG. At this stage, themovable handle 9 finishes a series of operations, and is completely moved to the release position by themain spring 29 at the rear end of theinsertion portion 3, and thepusher 14 is also moved to the final position.

そして、縫合・結紮具12aとプッシャー14の係合は解除され、縫合・結紮具12aはガイド部材13の内部に設けられているイジェクター17の弾性力によってガイド部材13の側方外部に放出される。一般に、脈管50を結紮する場合には切断する側に1個、残す側に2個の縫合・結紮具12を取り付けることになっているが、そのような時に従来技術では結紮操作の度にアプライヤー1を脈管50から外さなければ、縫合・結紮具12を放出できなかったが、本実施形態では順番に側方にガイド部材13をずらしていくだけで次々と結紮が行えるので、一度ホールドした脈管50を逃す心配がない。Then, the engagement between the suture / ligator 12a and thepusher 14 is released, and the suture / ligator 12a is released to the outside of the side of theguide member 13 by the elastic force of theejector17 provided inside theguide member 13. . Generally, when ligating thevessel 50, one suture /ligator 12 is attached on the side to be cut and two on the remaining side. If the applier 1 is not removed from thevessel 50, the suture /ligator 12 could not be released. In this embodiment, theguide members 13 can be sequentially moved sideways in order, so that the ligation can be performed one after another. There is no worry of missing the damagedvessel 50.

また、縫合・結紮具12bはプッシャー14が開口部43よりも後方に移動するために、クリップ抑えスプリング22の弾性力によりプッシャー14の前方に移動して次の操作に備える。後続の縫合・結紮具12はクリップ押しスプリング24の弾性力により、縫合・結紮具12bがクリップ抑えスプリング22と接触する位置まで移動し、アプライヤー1全体として初期状態に復帰する。  Further, since thepusher 14 moves rearward from theopening 43, the suturing /ligating tool 12b moves to the front of thepusher 14 by the elastic force of theclip restraining spring 22 to prepare for the next operation. The subsequent suturing / ligatingtool 12 is moved to a position where the suturing /ligating tool 12b comes into contact with theclip restraining spring 22 by the elastic force of theclip pushing spring 24, and the applier 1 as a whole returns to the initial state.

この状態から再び可動ハンドル9を閉鎖操作することにより、図17〜図22の一連の動作が繰り返され、縫合・結紮具12が連発されるようになっている。そして、最後の縫合・結紮具12tが放出されると、貯蔵手段19の内部には縫合・結紮具12が存在しなくなるが、この時には前述のようにバッファー23が最前位置に移動するので、その目視しやすい色調により縫合・結紮具12を使い果たしたことが確認される。また、縫合・結紮具12を使い果たした状態でさらに操作を行っても、このアプライヤー1では縫合・結紮具12を取り付けるための可動部分等が無いため、ただ単にプッシャー14が前進・後退をするのみであるので、生体組織を損傷する危険性がない。  By closing themovable handle 9 again from this state, the series of operations shown in FIGS. 17 to 22 are repeated, and the suturing / ligatingtool 12 is repeated. When the last suturing / ligatingtool 12t is released, the suturing / ligatingtool 12 does not exist inside the storage means 19. At this time, thebuffer 23 moves to the foremost position as described above. It is confirmed that the suturing / ligatingtool 12 has been used up with a color tone that is easy to see. Further, even if the operation is further performed with the suture /ligator 12 used up, thepusher 14 simply moves forward / backward because the applier 1 has no movable part for attaching the suture /ligator 12. As such, there is no risk of damaging living tissue.

また、縫合・結紮具12を使い果たした時にさらに処置を続行する場合には、前述のように操作手段4の蓋体11を開放して挿入部3を操作手段4から取り外し、新しい挿入部3を操作手段4に組み込んで蓋体11を閉鎖し、アプライヤー1に新しい縫合・結紮具12を装備させる。  Further, when the treatment is continued when the suture /ligator 12 is used up, the lid 11 of the operation means 4 is opened and theinsertion portion 3 is removed from the operation means 4 as described above, and thenew insertion portion 3 is removed. The lid 11 is closed by being incorporated in the operation means 4, and the applier 1 is equipped with a new suture /ligator 12.

ここで、図28および図29に示した従来の縫合・結紮具51と本実施形態の縫合・結紮具12とを比較すると、前述したように、縫合・結紮具51は、直径Dの脈管50を結紮するためには脚部52の長さが約2倍程度必要であり、2本の脚部52間距離L1 はL1 ≧Dとなっていなくてはならない。ここで従来技術の場合には縫合・結紮具51を変形させやすくするために、基端部53が角度θの略三角形状となっている。そのために全長はL2 +mcosθとなっており、本実施形態に示す場合に対してmcosθ長くなっている。  Here, when the conventional suturing / ligatingtool 51 shown in FIGS. 28 and 29 is compared with the suturing / ligatingtool 12 of the present embodiment, the suturing / ligatingtool 51 has a diameter D vessel as described above. In order to tie 50, the length of theleg part 52 is required to be about twice as long, and the distance L1 between the twoleg parts 52 must be L1 ≧ D. Here, in the case of the prior art, thebase end portion 53 has a substantially triangular shape with an angle θ in order to easily deform the suture /ligator 51. Therefore, the total length isL 2 + m cos θ, which is longer than that of the case shown in the present embodiment.

そして、アプライヤーに順列状態に貯蔵した場合、図29に示すように、縫合・結紮具51の2つにつきnだけの無駄な長さが必要となり、縫合・結紮具51の数が多くなればなる程その長さは増大し、結果として貯蔵部に貯蔵できる縫合・結紮具51の数が減少してしまう。本実施形態ではこの無駄な長さであるnが無いため、例えば20個では19nの長さが確保できるため、大体縫合・結紮具51を4個程度よけいに貯蔵することができるので、前述の従来の問題が解決される。  When the appliers are stored in a permuted state, as shown in FIG. 29, a wasteful length of n is required for each of the two stitching /ligating tools 51, and the number of stitching /ligating tools 51 increases. The length increases, and as a result, the number of stitching /ligating tools 51 that can be stored in the storage section decreases. In this embodiment, since there is no n which is a useless length, for example, 20 can secure a length of 19n, and therefore, approximately 4 stitches and ligaturetools 51 can be stored, so that The conventional problem is solved.

また、縫合・結紮具51が所定の形状に変形された時に、従来技術ではその全長がL2 +mとなるが、本実施形態ではL2 +l/2であるので、差引きm−l/2だけ生体内に残留する物質の大きさを小さくすることができる。  Further, when the suture /ligator 51 is deformed to a predetermined shape, the total length is L2 + m in the prior art, but in this embodiment, it is L2 + l / 2. The size of the substance remaining in the body can be reduced.

以上のように、本実施形態によれば、この発明の目的である、安全・簡単な機構のアプライヤー1が使用できる、あるいは縫合・結紮具12の大きさを小さくしてアプライヤー1の内部に貯蔵できる数を増やす、または不必要に大きな残留物を生体内に残さない。さらには縫合・結紮具12で脈管50の結紮ができる等という点に沿った範囲であれば、アプライヤー1や縫合・結紮具12等の形状や構造には特に制限は無く、どのようなものでも構わない。  As described above, according to the present embodiment, the applier 1 having a safe and simple mechanism, which is the object of the present invention, can be used, or the size of the suturing / ligatingtool 12 can be reduced and the interior of the applier 1 can be reduced. Increase the number that can be stored in, or leave an unnecessarily large residue in vivo. Furthermore, the shape and structure of the applier 1 and the suture /ligator 12 are not particularly limited as long as they are within the range that thevessel 50 can be ligated by the suture /ligator 12. It doesn't matter.

図23は第2の実施形態を示す。縫合・結紮具12の形状は第1の実施形態と同一であり、変形の際に角となる部分が曲がりやすくなっている等の特徴も同一である。アプライヤー54の取り付け手段55はジョー56がジョー閉鎖部材57が進退駆動されることにより閉鎖・開放され、それによりジョー56に装填されている縫合・結紮具12を所定の形状に変形させて目的の生体組織を縫合・結紮することができる。  FIG. 23 shows a second embodiment. The shape of the suturing / ligatingtool 12 is the same as that of the first embodiment, and the features such as the corner portion being easily bent at the time of deformation are the same. The attachment means 55 of theapplier 54 is closed and opened when thejaw 56 is driven back and forth by thejaw closing member 57, thereby deforming the suturing / ligatingtool 12 loaded in thejaw 56 into a predetermined shape. Can be sutured and ligated.

本実施形態においては、前述の第1の実施形態と同様に、縫合・結紮具12の形状が小さいためにアプライヤー1の内部に数多くの縫合・結紮具12を貯蔵できる、あるいは生体内に不必要に大きな残留物を残さずに済むというメリットがある。  In the present embodiment, as in the first embodiment described above, since the shape of the suturing / ligatingtool 12 is small, a large number of suturing /ligating tools 12 can be stored inside the applier 1 or not in vivo. There is an advantage that it is not necessary to leave a large residue.

以上のようにアプライヤー1の内部に数多くの縫合・結紮具12を貯蔵できる、あるいは生体内に不必要な大きな残留物を残さないという、この発明の目的に沿った範囲であれば、縫合・結紮具12の構造・材質等に特に限定は無くどのようなものでも構わない。  As described above, a number of sutures andligatures 12 can be stored inside the applier 1 or the sutures andligatures 12 can be stored as long as they do not leave unnecessary large residues in the living body. There is no particular limitation on the structure, material, etc. of theligation tool 12, and any kind ofligation tool 12 may be used.

図24および図25は第3の実施形態を示す。縫合・結紮具12の基本的な形状は第1の実施形態と同様であるが、図24では2本の脚部58の対向する面の端部にそれぞれ互いに係合するように突起59と凹部60が設けられている。図25では突起59がピン状の部材からなり、凹部60は脚部58に開けられた孔となっている。そして、これらが互いに係合することによって縫合・結紮具12が所定の形状に変形した際に、脚部58同士がずれることなく確実に略平行状態に近接して所定の形状に変形できるため、確実な縫合・結紮が可能となる。  24 and 25 show a third embodiment. The basic shape of the suturing / ligatingtool 12 is the same as that of the first embodiment. However, in FIG. 24, theprotrusion 59 and the recessed portion are engaged with each other at the ends of the opposing surfaces of the twoleg portions 58, respectively. 60 is provided. In FIG. 25, theprotrusion 59 is made of a pin-shaped member, and theconcave portion 60 is a hole opened in theleg portion 58. And when they are engaged with each other, when the suturing / ligatingtool 12 is deformed into a predetermined shape, theleg portions 58 can be reliably deformed into a predetermined shape in the vicinity of a substantially parallel state without being displaced, Secure stitching and ligation are possible.

以上のように、この発明の目的である、確実な縫合・結紮を行うという点に沿っていれば、縫合・結紮具12の構造・材質等には特に制限は無く、どのようなものでも構わない。  As described above, the structure and material of the suturing / ligatingtool 12 are not particularly limited as long as the object of the present invention is to perform reliable suturing / ligating, and any structure may be used. Absent.

図26は第4の実施形態を示す。縫合・結紮具12の基本的な形状は第1の実施形態と同様であるが、図26では2本の脚部58の対向する面に、縫合・結紮具12が生体組織に取り付けられた際に、生体組織に対して滑って脱落することを防止するための滑り止め61が設けられており、本実施形態では前記対向する面を凸あるいは凹形状を適当に組み合わせた形状に形成しており、それにより生体組織に対して滑らないようになっている。  FIG. 26 shows a fourth embodiment. The basic shape of the suturing / ligatingtool 12 is the same as that of the first embodiment, but in FIG. 26, when the suturing / ligatingtool 12 is attached to the living tissue on the opposing surfaces of the twolegs 58. Further, aslip stopper 61 is provided for preventing the body tissue from slipping and falling off. In the present embodiment, the opposing surfaces are formed in a shape appropriately combining convex or concave shapes. This prevents it from slipping against living tissue.

図27は第5の実施形態を示す。縫合・結紮具12の基本的な形状は第1の実施形態と同様であるが、所定の形状に変形する際に角となる部分(脚部121、基端部122)の内側に切り欠き42等の凹みが設けられており、変形しやすくなっている。  FIG. 27 shows a fifth embodiment. The basic shape of the suturing / ligatingtool 12 is the same as that of the first embodiment, but anotch 42 is formed inside the corner portions (theleg portion 121 and the base end portion 122) that become corners when deformed into a predetermined shape. Etc., and are easily deformed.

また、前記滑り止め61は、例えば前記2本の脚部58の対向する面を梨地仕上げとしても良く、そのような場合にはサンドブラストや化学的な表面処理によって、滑り止め61を形成することができる。  The anti-slip 61 may have, for example, a matte finish on the opposing surfaces of the twoleg portions 58. In such a case, the anti-slip 61 may be formed by sandblasting or chemical surface treatment. it can.

以上のように、この発明の目的である、確実な縫合・結紮を行うという点に沿っていれば、縫合・結紮具12の構造・材質等には特に制限は無く、どのようなものでも構わない。  As described above, the structure and material of the suturing / ligatingtool 12 are not particularly limited as long as the object of the present invention is to perform reliable suturing / ligating, and any structure may be used. Absent.

前記実施形態によれば、次のような構成が得られる。  According to the embodiment, the following configuration is obtained.

(付記1)生体組織を縫合・結紮等をするための縫合・結紮具において、略平行状態の2本の脚部とこの脚部を連結する基端部を有して略コ字型に形成されており、生体組織に取り付ける際に所定の形状に変形して取り付けられ、前記2本の脚部は前記基端部に対して略垂直で、変形後、前記2本の脚部の互いに向かい合う面同士が少なくとも部分的に接触するように構成されていることを特徴とする縫合・結紮具。  (Supplementary note 1) In a suturing / ligating tool for suturing / ligating a living tissue, it is formed in a substantially U-shape having two legs in a substantially parallel state and a base end for connecting the legs. The two legs are substantially perpendicular to the base end when attached to a living tissue, and the two legs face each other after being deformed. A suturing / ligating tool characterized in that the surfaces are at least partially in contact with each other.

(付記2)生体組織を縫合・結紮等をするための縫合・結紮具において、略平行状態の2本の脚部とこの脚部を連結する基端部を有して略コ字型に形成されており、生体組織に取り付ける際の変形後の形状が、前記2本の脚部の互いに向き合う面同士が近接し略平行状態となり、前記2本の脚部の基端部側には少なくとも一部分、前記2本の脚部が近接しない箇所を有し、前記2本の脚部部と前記基端部とによって囲まれた空間を有することを特徴とする縫合・結紮具。  (Supplementary note 2) A suture / ligator for suturing / ligating biological tissue has a substantially U-shape with two substantially parallel legs and a base end connecting the legs. The deformed shape when attached to the living tissue is such that the faces of the two legs facing each other are close to each other and are substantially parallel, and at least partly on the proximal end side of the two legs. A suturing / ligating tool having a portion where the two leg portions are not close to each other and a space surrounded by the two leg portions and the base end portion.

(付記3)生体組織を縫合・結紮するための縫合・結紮具で、略平行状態の2本の脚部とその脚部を接続する基端部を有して略コ字型に形成されており、前記2本の脚部は前記基端部に対して略垂直に形成されており、前記縫合・結紮具を生体組織に取り付けるためのアプライヤーにおいて、前記縫合・結紮具を保持する少なくとも一つの保持部材と、前記保持部材との間に前記縫合・結紮具を挟み込んで、前記縫合・結紮具の基端部を押圧することにより、前記縫合・結紮具を所定の形状に変形させるためのプッシャーを有し、前記縫合・結紮具の前記2本の脚部の向かい合う面同士が少なくとも部分的に接触するように変形させることを特徴とするアプライヤー。  (Supplementary Note 3) A suturing / ligating tool for suturing / ligating biological tissue, having two substantially parallel legs and a base end connecting the legs, and having a substantially U-shape. The two leg portions are formed substantially perpendicular to the proximal end portion, and in an applier for attaching the suturing / ligating tool to a living tissue, at least one holding the suturing / ligating tool. Sandwiching the suturing / ligating tool between two holding members and the holding member and pressing the base end of the suturing / ligating tool to deform the suturing / ligating tool into a predetermined shape An applier having a pusher and being deformed so that opposing surfaces of the two legs of the suturing / ligating tool are at least partially in contact with each other.

(付記4)生体組織を縫合・結紮するための縫合・結紮具を生体組織に取り付けるためのアプライヤーにおいて、前記アプライヤーの前記縫合・結紮具を生体組織に取り付けるための取り付け手段が、前記縫合・結紮具を所定の形状に変形させるための略ジョー状の互いに近接・離合する可動部材からなるアプライヤー。  (Appendix 4) An applier for attaching a suturing / ligating tool for suturing / ligating a living tissue to the living tissue, wherein an attaching means for attaching the suturing / ligating tool of the applier to the living tissue is the suturing An applier made up of a substantially jaw-shaped movable member that approaches and separates from each other for deforming the ligature tool into a predetermined shape.

(付記5)付記4において、前記縫合・結紮具の所定の形状が前記2本の脚部の向かい合う面同士が少なくとも部分的に接触するように形成されているアプライヤー。  (Appendix 5) The applier according toappendix 4, wherein the predetermined shape of the suturing / ligating tool is formed such that the opposing surfaces of the two leg portions are at least partially in contact with each other.

(付記6)付記1,2において、前記脚部の長さが前記2本の脚部の脚部間距離の少なくとも0.5倍以上ある縫合・結紮具。  (Supplementary note 6) The suturing / ligating tool according tosupplementary notes 1 and 2, wherein the length of the leg portion is at least 0.5 times the distance between the leg portions of the two leg portions.

(付記7)付記6において、前記所定の形状が、
a.前記2本の脚部の互いに向き合う面同士が近接し略平行状態となり、
b.前記2本の脚部の基端部側には少なくとも一部分、前記2本の脚部が近接しない箇所を有し、
c.前記2本の脚部と前記基端部とによって囲まれた空間を有する、
縫合・結紮具。
(Appendix 7) InAppendix 6, the predetermined shape is:
a. The surfaces of the two legs facing each other are close to each other and in a substantially parallel state,
b. At least a part of the base end portion side of the two legs, a portion where the two legs are not close to each other,
c. A space surrounded by the two legs and the base end;
Suture and ligature.

(付記8)付記6において、前記所定の形状が、
a.前記2本の脚部の互いに向き合う面同士が近接し略平行状態となり、
b.前記2本の脚部の基端部側には少なくとも一部分、前記2本の脚部が近接しない箇所を有し、
c.前記2本の脚部と前記基端部とによって囲まれた空間を有し、
d.前記空間が前記保持部材を取り囲むように形成される、
縫合・結紮具。
(Appendix 8) InAppendix 6, the predetermined shape is:
a. The surfaces of the two legs facing each other are close to each other and in a substantially parallel state,
b. At least a part of the base end portion side of the two legs, a portion where the two legs are not close to each other,
c. A space surrounded by the two legs and the base end;
d. The space is formed so as to surround the holding member.
Suture and ligature.

(付記9)付記1,2,7,8において、前記脚部の略平行状態となっている部分の長さが前記空間部分の長手方向の長さに対して、少なくとも2倍以上ある縫合・結紮具。  (Additional remark 9) Inadditional remarks 1, 2, 7, and 8, the length of the substantially parallel portion of the leg portion is at least twice as long as the length of the space portion in the longitudinal direction. Ligature.

(付記10)付記1,2,9において、前記脚部が所定の形状に変形しやすいように、所定の形状に変形した際に角となる部分が、他の部分に対して比較的変形しやすいように形成されている縫合・結紮具。  (Additional remark 10) Inadditional remarks 1, 2, and 9, the part which becomes a corner when deforming into the predetermined shape is relatively deformed with respect to the other part so that the leg portion is easily deformed into the predetermined shape. Sutures and ligatures that are formed to be easy.

(付記11)付記10において、前記脚部の比較的変形しやすい部分のヤング率が他の部分よりも比較的大きく形成されている縫合・結紮具。  (Supplementary note 11) The suturing / ligating tool according tosupplementary note 10, wherein a Young's modulus of a portion of the leg portion that is relatively easily deformed is relatively larger than that of other portions.

(付記12)付記10において、前記脚部の比較的変形しやすい部分の断面積が他の部分よりも比較的小さく形成されている縫合・結紮具。  (Supplementary note 12) The suturing / ligating tool according tosupplementary note 10, wherein a cross-sectional area of a relatively deformable portion of the leg portion is formed to be relatively smaller than other portions.

(付記13)付記10において、前記脚部の比較的変形しやすい部分の曲げ方向に対する断面係数が他の部分よりも比較的小さく形成されている縫合・結紮具。  (Supplementary note 13) The suturing / ligating tool according tosupplementary note 10, wherein a section modulus of a portion of the leg portion that is relatively easily deformed with respect to a bending direction is relatively smaller than that of other portions.

(付記14)付記12,13において、前記脚部の変形しやすい部分は、前記縫合・結紮具が所定の形状に変形する際に、前記角の外側となる部分または内側となる部分に切り欠きあるいは凹部が形成されている縫合・結紮具。  (Additional remark 14) Inadditional remarks 12, 13, when the said leg part is easy to deform | transform, when the said suturing / ligating tool deform | transforms into a predetermined | prescribed shape, it cuts into the part which becomes the outer part of the said corner, or an inner part. Alternatively, a suturing / ligating tool having a recess.

(付記15)付記1,2,6〜14において、前記脚部を所定の形状に変形した際に、前記2本の脚部の互いに接触する部分の片方の脚部に突起が設けてあり、他方の脚部には前記突起と係合する凹部が形成されている縫合・結紮具。  (Appendix 15) Inappendices 1, 2, 6 to 14, when the leg portion is deformed into a predetermined shape, a protrusion is provided on one leg portion of the two leg portions in contact with each other, A suturing / ligating tool in which a recess engaging with the protrusion is formed on the other leg.

(付記16)付記1,2,6〜15において、前記縫合・結紮具の外周面の少なくとも一部分に、前記縫合・結紮具を生体組織に取り付けるためのアプライヤーの取り付け手段と係合するための、突起あるいは凹部またはその両方が形成されている縫合・結紮具。  (Additional remark 16) Inadditional remarks 1, 2, and 6-15, it is for engaging with the attachment means of the applier for attaching the said suture and ligation tool to a biological tissue at least a part of the outer peripheral surface of the said suture and ligation tool A suturing / ligating tool in which protrusions and / or recesses are formed.

(付記17)付記16において、前記突起あるいは凹部またはその両方が形成されている部分が、前記脚部の基端部である縫合・結紮具。  (Supplementary note 17) The suturing / ligating tool according tosupplementary note 16, wherein a portion where the protrusion and / or the concave portion is formed is a base end portion of the leg portion.

(付記18)付記17において、前記突起あるいは凹部またはその両方が縫合・結紮具の外周面全周に形成されている縫合・結紮具。  (Supplementary note 18) The suturing / ligating tool according tosupplementary note 17, wherein the protrusions and / or the recesses are formed on the entire outer peripheral surface of the stitching / ligating tool.

(付記19)付記16において、前記2本の脚部のお互いに向かい合う面に、少なくとも一つ以上の滑り止めのための凸部あるいは凹部が設けられている縫合・結紮具。  (Supplementary note 19) The suturing / ligating tool according tosupplementary note 16, wherein at least one convex portion or concave portion for preventing slippage is provided on surfaces of the two leg portions facing each other.

付記1〜3,8によれば、従来技術の問題点である、縫合・結紮具においてはアプライヤーの構造が複雑でその挿入径が太くなる点を解決でき、脈管を確実に解決できる。  According to the supplementary notes 1 to 3 and 8, it is possible to solve the problem that the applier has a complicated structure of the applier and the insertion diameter becomes large in the suturing / ligating tool, which is a problem of the prior art, and the vessel can be surely solved.

付記4,5によれば、従来技術の問題点である、縫合・結紮具の全長が不必要に長いために不必要に大きな残留物を生体内に留めてしまう、あるいはアプライヤー内部に数多くのクリップを貯蔵できないという点について解決できる。  According toAddendums 4 and 5, which are problems of the prior art, the overall length of the suturing / ligating tool is unnecessarily long, so that an unnecessarily large residue remains in the living body, or a large number of inside the applier The problem that the clip cannot be stored can be solved.

付記6,7の効果は付記1〜5と同様である。付記8の効果は付記1,2,4と同様である。  The effects ofsupplementary notes 6 and 7 are the same as those of supplementary notes 1 to 5. The effect ofSupplementary Note 8 is the same as that ofSupplementary Notes 1, 2, and 4.

付記10〜14によれば、付記1〜9の効果に加え、従来技術の問題点であるアプライヤーの操作手段のストロークが大きい、あるいは縫合・結紮具の大きさが不必要に大きくなりがちであるという点について解決できる。  According to Appendices 10-14, in addition to the effects of Appendices 1-9, the stroke of the applier operating means which is a problem of the prior art tends to be large, or the size of the suturing / ligating tool tends to be unnecessarily large. You can solve the problem.

付記15の効果は付記1〜3,5〜14の効果に加え、従来技術の問題点である前記縫合・結紮具の前記2本の脚部が、互いに対向して近接せずにずれてしまうという点について解決できる。  The effect ofsupplementary note 15 is in addition to the effects of supplementary notes 1 to 3 and 5 to 14, and the two legs of the suturing and ligating tool, which are problems of the prior art, are displaced without facing each other. This can be solved.

付記16〜18の効果は付記1〜15の効果に加え、従来技術の問題点である前記縫合・結紮具が、前記取り付け手段から脱落してしまうという点について解決できる。  The effects ofsupplementary notes 16 to 18 can be solved in addition to the effects of supplementary notes 1 to 15 in that the suturing / ligating tool, which is a problem of the prior art, falls off from the attachment means.

付記19の効果は付記1〜18の効果に加え、従来技術の問題点である前記縫合・結紮具が生体組織から脱落してしまうという点について解決できる。  In addition to the effects of Supplementary Notes 1 to 18, the effect ofSupplementary Note 19 can be solved with respect to the point that the suturing / ligating tool, which is a problem of the prior art, falls off the living tissue.

この発明の第1の実施形態を示すアプライヤーの全体の側面図。1 is an overall side view of an applier showing a first embodiment of the present invention. FIG.同実施形態の取り付け手段の縦断平面図および縦断側面図。The vertical section top view and vertical side view of the attachment means of the embodiment.図2の矢印X方向から見た正面図。The front view seen from the arrow X direction of FIG.図2のA−A´線に沿う断面図。Sectional drawing which follows the AA 'line of FIG.図2のB−B´線に沿う断面図。Sectional drawing which follows the BB 'line of FIG.図2のC−C´線に沿う断面図。Sectional drawing which follows the CC 'line of FIG.同実施形態のアプライヤーの貯蔵手段を示す縦断側面図。The vertical side view which shows the storage means of the applier of the embodiment.同実施形態のアプライヤーのラチェット機構を示す縦断側面図。The longitudinal cross-sectional side view which shows the ratchet mechanism of the applier of the embodiment.図7のE−E´線に沿う断面図。Sectional drawing which follows the EE 'line of FIG.同実施形態の挿入部の操作手段側の縦断平面図および縦断側面図。The vertical plan view and vertical side view on the operating means side of the insertion portion of the embodiment.同実施形態のアプライヤーの操作手段を示す縦断側面図。The longitudinal section side view which shows the operation means of the applier of the embodiment.図11のI−I´線に沿う断面図。Sectional drawing which follows the II 'line of FIG.図11のJ−J´線に沿う断面図。Sectional drawing which follows the JJ 'line | wire of FIG.図12のK−K´線に沿う断面図。Sectional drawing which follows the KK 'line of FIG.同実施形態のプッシャーと縫合・結紮具の斜視図。The perspective view of the pusher of the same embodiment, and a suture and a ligation tool.同実施形態の縫合・結紮具の斜視図。The perspective view of the suturing / ligating tool of the embodiment.同実施形態のアプライヤーの動作を示す縦断側面図。The longitudinal section which shows operation | movement of the applier of the embodiment.同実施形態のアプライヤーの動作を示す縦断側面図。The longitudinal section which shows operation | movement of the applier of the embodiment.同実施形態のアプライヤーの動作を示す縦断側面図。The longitudinal section which shows operation | movement of the applier of the embodiment.同実施形態のアプライヤーの動作を示す縦断側面図。The longitudinal section which shows operation | movement of the applier of the embodiment.同実施形態のアプライヤーの動作を示す縦断側面図。The longitudinal section which shows operation | movement of the applier of the embodiment.同実施形態のアプライヤーの動作を示す縦断側面図。The longitudinal section which shows operation | movement of the applier of the embodiment.この発明の第2の実施形態のアプライヤーの取り付け手段を示す平面図。The top view which shows the attachment means of the applier of 2nd Embodiment of this invention.この発明の第3の実施形態の縫合・結紮具の斜視図および縦断側面図。The perspective view and longitudinal cross-sectional side view of the suturing / ligating tool of 3rd Embodiment of this invention.同実施形態の縫合・結紮具の縦断側面図および端面図。The longitudinal section side view and end view of the suturing / ligating tool of the embodiment.この発明の第4の実施形態の縫合・結紮具の側面図。The side view of the suturing / ligating tool of the 4th Embodiment of this invention.この発明の第5の実施形態の縫合・結紮具の斜視図。The perspective view of the suturing / ligating tool of the 5th Embodiment of this invention.従来の縫合・結紮具の説明図。Explanatory drawing of the conventional suture and ligation tool.従来の縫合・結紮具の説明図。Explanatory drawing of the conventional suture and ligation tool.

符号の説明Explanation of symbols

1…アプライヤー、3…挿入部、4…操作手段、12…縫合・結紮具、14…プッシャー(第2の押圧部)、15…支持ピン(第1の押圧部)、121…脚部、122…基端部  DESCRIPTION OF SYMBOLS 1 ... Applier, 3 ... Insertion part, 4 ... Operation means, 12 ... Suture / ligation tool, 14 ... Pusher (2nd press part), 15 ... Support pin (1st press part), 121 ... Leg part, 122 ... Base end

Claims (3)

Translated fromJapanese
先端と基端とを有する細長の2本の脚部とこの2本の脚部の間に生体組織を挿入可能にこの脚部の基端と連結する基端部とを有し、前記2本の脚部は略平行状態で、これら脚部と前記基端部とによって囲まれた空間を有し、さらに前記基端部に他の部分より折れ曲りやすい折れ曲り部を有する縫合・結紮具を用い、生体組織を縫合結紮する縫合・結紮具アプライヤーであって、
先端と基端とを有する細長の挿入部と、
前記挿入部の先端側に設けられ、前記縫合・結紮具の前記空間内に位置し、前記基端部の長手方向の中間部を支持する支持部材と、
前記挿入部に対して前後方向に移動可能に設けられ、先端部に前記縫合・結紮具の基端部の中間部を避け、両端側を前記挿入部の先端方向に押圧して前記縫合・結紮具を塑性変形させる2箇所の押圧部を有する押圧手段と、
前記挿入部の基端に設けられ、前記挿入部に対して前記押圧手段を移動させる操作手段と、
を備え、
前記支持部材は、前記縫合・結紮具の基端部における長手方向の中間部を支持し、前記押圧手段は、前記操作手段の操作により前記挿入部の先端方向に移動することにより、前記縫合・結紮具の基端部における長手方向の両端部を前記2箇所の押圧部で同時に押圧して前記縫合・結紮具の前記折り曲げ部を折り曲げ、前記2本の脚部の先端同士を接触させた後、前記2本の脚部同士を略平行に近接させることを特徴とする縫合・結紮具アプライヤー。
Two elongated legs having a distal end and a proximal end, and a proximal end connected to the proximal end of the legs so that a living tissue can be inserted between the two legs. The leg portion is substantially parallel, has a space surrounded by the leg portion and the base end portion, and further has a suture / ligating tool having a bent portion at the base end portion that is easier to bend than other portions. A suture / ligator applier for suturing and ligating living tissue,
An elongated insertion portion having a distal end and a proximal end;
A support member provided on the distal end side of the insertion portion, located in the space of the suturing / ligating tool, and supporting an intermediate portion in the longitudinal direction of the proximal end portion;
It is provided so as to be movable in the front-rear direction with respect to the insertion portion,avoids anintermediate portion of the proximal end portion of the suturing / ligating tool at the distal end portion, and presses both ends in the distal end direction of the inserting portion, thereby suturing / ligatingA pressing meanshaving two pressing portions for plastically deforming the tool;
An operating means provided at a proximal end of the insertion portion, and moving the pressing means relative to the insertion portion;
With
The support member supports an intermediate portion in the longitudinal direction at the proximal end portion of the suturing / ligating tool, and the pressing means moves in the distal direction of the insertion portion by operation of the operating means, thereby Afterpressing both ends in the longitudinal direction at the proximal end of the ligation toolsimultaneously with thetwo pressing portions to fold the bent portion of the suturing / ligating tooland bringing the tips of the two leg portions into contact with each other A suturing / ligating applier, wherein the two legs are brought close to each other in parallel .
前記縫合・結紮具は、前記2本の脚部に他の部分より折れ曲りやすい折り曲げ部を有し、前記2箇所の押圧部の押圧に伴って前記基端部の折り曲げ部が折り曲げられ、前記2本の脚部の先端同士を接触した後、前記2本の脚部の折り曲げ部が前記基端部の折り曲げ部と逆方向に折り曲げられることを特徴とする請求項1記載の縫合・結紮具アプライヤー。The suture-ligatures, the leg portions of the two has a bent portion which bends easily broken than other portions, the bent portion of the base end portion with the pressingof the pressing portion of the two portions are folded,the The suturing / ligating tool according to claim 1, whereinafter the tips of the two legs are brought into contact with each other, a bent portion of the two legsis bent in adirection opposite to a bent portion of the base end. Applier. 先端と基端とを有する細長の2本の脚部とこの2本の脚部の間に生体組織を挿入可能にこの脚部の基端と連結する基端部とを有し、前記2本の脚部は略平行状態で、これら脚部と前記基端部とによって囲まれた空間を有し、さらに前記脚部に他の部分より折れ曲りやすい折れ曲り部を有する縫合・結紮具を用い、生体組織を縫合結紮する縫合・結紮具アプライヤーであって、
先端と基端とを有する細長の挿入部と、
前記挿入部の先端側に設けられ、前記縫合・結紮具の前記空間内に位置し、前記基端部の長手方向の中間部を支持する支持部材と、
前記挿入部に対して前後方向に移動可能に設けられ、先端部に前記縫合・結紮具の基端部の両端側を前記挿入部の先端方向に押圧して前記縫合・結紮具を塑性変形させる押圧手段と、
前記挿入部の基端に設けられ、前記挿入部に対して前記押圧手段を移動させる操作手段と、
を備え、
前記支持部材は、前記縫合・結紮具の基端部における長手方向の中間部を支持し、前記押圧手段は、前記操作手段の操作により前記挿入部の先端方向に移動することにより、前記縫合・結紮具の基端部における長手方向の両端部を前記2箇所の押圧部で同時に押圧し、該基端部を折り曲げて前記2本の脚部の先端同士を接触させた後、前記2本の脚部の折り曲げ部を折り曲げ、前記2本の脚部同士を略平行に近接させることを特徴とする縫合・結紮具アプライヤー。
Two elongated legs having a distal end and a proximal end, and a proximal end connected to the proximal end of the legs so that a living tissue can be inserted between the two legs. The leg portion is substantially parallel, has a space surrounded by the leg portion and the base end portion, and further uses a suturing / ligating tool having a bent portion at the leg portion that is easier to bend than other portions. A suture / ligator applier for suturing and ligating biological tissue,
An elongated insertion portion having a distal end and a proximal end;
A support member provided on the distal end side of the insertion portion, located in the space of the suturing / ligating tool, and supporting an intermediate portion in the longitudinal direction of the proximal end portion;
It is provided so as to be movable in the front-rear direction with respect to the insertion portion, and both ends of the base end portion of the suturing / ligating tool are pressed toward the distal end of the inserting portion at the distal end portion to plastically deform the suturing / ligating tool. Pressing means;
An operating means provided at a proximal end of the insertion portion, and moving the pressing means relative to the insertion portion;
With
The support member supports an intermediate portion in the longitudinal direction of the proximal end portion of the suturing / ligating tool, and the pressing means moves in the distal direction of the insertion portion by operation of the operating means, thereby The two end portions in the longitudinal direction of the base end portion of the ligature tool aresimultaneously pressed by thetwo pressing portions, the base end portions are bent andthe tips of the two leg portions are brought into contact with each other, and then the two A suture / ligatorapplier, wherein a bent portion of a leg is bent and the two legs are brought close to each other in parallel .
JP2006102022A2006-04-032006-04-03 Suture and ligature applierExpired - Fee RelatedJP4102409B2 (en)

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JP8037873ADivisionJPH09224944A (en)1996-02-261996-02-26Suturing/ligating tool

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US11957337B2 (en)2021-10-182024-04-16Cilag Gmbh InternationalSurgical stapling assembly with offset ramped drive surfaces
US11877745B2 (en)2021-10-182024-01-23Cilag Gmbh InternationalSurgical stapling assembly having longitudinally-repeating staple leg clusters
US12279845B2 (en)2021-10-182025-04-22Cilag Gmbh InternationalCable-driven actuation system for robotic surgical tool attachment
US12251105B2 (en)2021-10-202025-03-18Cilag Gmbh InternationalLockout arrangements for surgical instruments
US12432790B2 (en)2021-10-282025-09-30Cilag Gmbh InternationalMethod and device for transmitting UART communications over a security short range wireless communication
US12089841B2 (en)2021-10-282024-09-17Cilag CmbH InternationalStaple cartridge identification systems
US11937816B2 (en)2021-10-282024-03-26Cilag Gmbh InternationalElectrical lead arrangements for surgical instruments

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