JP3859257B2 - Suture cutting device for intracardiac suture surgery - Google Patents

Suture cutting device for intracardiac suture surgery Download PDF

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Publication number
JP3859257B2
JP3859257B2 JP06078496A JP6078496A JP3859257B2 JP 3859257 B2 JP3859257 B2 JP 3859257B2 JP 06078496 A JP06078496 A JP 06078496A JP 6078496 A JP6078496 A JP 6078496A JP 3859257 B2 JP3859257 B2 JP 3859257B2
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Japan
Prior art keywords
suture
inner tube
side hole
outer tube
tube
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JP06078496A
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JPH09248307A (en
Inventor
一行 小池
兆一 岸上
克也 宮川
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Nipro Corp
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Nipro Corp
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Description

【0001】
【発明の属する技術分野】
本発明は、心腔内縫合手術用縫合糸を切断するための器具に関する。より詳しくは、例えば心房中隔欠損(ASD)、心室中隔欠損(VSD)や動脈管開存(PDA)等を直接縫合閉鎖するための手術を行う場合、心臓カテーテル手技で末梢血管から手術部位に心腔内縫合手術用器具等の縫合装置を挿入して行うが、この様な縫合手術に用いた縫合糸を体内において切断するのに好適な心腔内縫合手術用縫合糸切断器具に関する。
【0002】
【従来の技術】
先天性心疾患の一つであるASDの治療方法としては、一般に、外科的手術が主である。しかしながら、外科的手術においては、当然のことながら疾患部分の治療そのものだけでなく、開胸術(または開腹術)を伴うものであり、患者への負担が大きい。増してや小児患者の場合、その負担は非常に大きいものとなる。
そこで、近年、非手術的方法として、心臓カテーテルを経血管的に心腔内に挿入して心房中隔欠損を閉塞する方法が開発されている。この方法は経皮経管腔カテーテル法として知られており、キングとミルによって1976年に初めて臨床成功例が報告されている。キング等による方法は、左房用と右房用の2枚の円盤状の傘を、中心のワイヤーと同軸の2層のカテーテルからなる挿入用具で心房に到らせ、心房中隔を挟んで合体させることにより心房中隔欠損を閉鎖するものである。
【0003】
しかしながら、この方法は非常に太い挿入用具と硬い傘を用いているため、ほとんどの小児、特に就学前の小児には全く使用できないものであった。そこで、ラシュキントは装置の小型化に努め、1977年に鉤付きの1枚傘式閉鎖栓を考案し、小児での臨床成功例を報告している。しかしながら、この方法も、閉塞栓が鉤付きのため意図しない部分に引っ掛かることがあり、そのため、心内で一度開傘すると、位置を変えることも回収することも出来ず緊急手術をしなければならないという欠点を有していた。そこで、このような欠点を解消するものとして、ラシュキントは2枚の傘を一体化した閉鎖栓を開発しており、これは、動脈管開存の閉鎖に広く臨床応用されてきている。
【0004】
一方、ロックはラシュキントの開発した一体型の2枚の傘式閉鎖栓の8本のステンレス鋼の骨の各々の中間にコイルスプリングを追加して、2つの傘が薄い心房中隔をしっかり挿むようにした蛤式中隔傘を開発し特許出願している(特開平5−297130号公報)。この閉鎖栓は、2枚の傘が互いに重なり合うように密着することで、薄い心房中隔にしっかりと固定されるようにしたもので、その形が二枚貝である蛤に似ていることから、蛤式中隔傘と呼ばれている。この方法は11フレンチのロングシースを大腿静脈から挿入するものであり、体重8Kg以上の患者であれば使用することができるので、心房中隔欠損の経皮経管腔カテーテル法で閉塞する方法として、初めて広く臨床応用されている。
【0005】
しかしながら、何れにしてもこれらの閉鎖栓を使用するものは、様々な形態をしたASDに対して画一的な形状の閉鎖栓を使用するものであり、欠損孔の閉鎖にはその2倍の大きさの閉鎖栓が必要なので、適応が限定され、比較的小さな中心部の欠損孔しか閉鎖出来ないという欠点を有しており、また、心内に残した閉鎖栓の長期的な観測データが無いために、その使用に対する懸念の残るものであった。
本発明者等は如上の事情に鑑み、従来技術の課題を解決するものとして、特に様々な形態をしたASDに適応するのに好適な心腔内縫合手術用カテーテル組立体をすでに提案している(特願平7−269916号)。このものは、先端に縫合糸捕捉手段を備え基端に操作用部材を備えた捕捉カテーテルと、この捕捉カテーテルを出し入れ自在に挿着することができる第1シースと、この第1シースを出し入れ自在に挿着することができ、先端に穿刺針を備えるとともに基端部に止血弁を備えた穿刺カテーテルと、この穿刺カテーテルを出し入れ自在に挿着することができ、基端部に止血弁を備えた第2シースからなるもので、第2シースに挿着された穿刺カテーテルの先端と第2シースの先端が一致するようにした時に、穿刺カテーテルの先端部に設けられた側孔と第2シースの先端部に設けられた側孔が重なり、この重なった側孔から第1シースを露出することができるようになっている。
【0006】
このような非手術的に欠損口を閉鎖する器具は、簡単かつ正確に欠損口を閉鎖することができるという利点を有するものであるが、糸を結んだ後できるだけ糸の結び目近くで糸を切断しょうとすると、心腔内で糸を切断しなければならないため、糸の切断に非常な熟練を要するものであった。そこで、体内で糸を切断するための器具が必要になり、特公平5−60934号公報において、先端部に切断刃部を設けた内チューブと切断刃部押し当て部を設けた外チューブからなり、外チューブに押し当てた糸を軸方向に移動させた内チューブの切断刃部で切断するようにした糸切断装置が提案されている。
【0007】
【発明が解決しようとする課題】
しかしながら、上記の糸切断装置は、▲1▼外チューブに切断刃部押し当て部が設けられているとはいえ、軸方向に移動する切断刃部が内チューブの先端に設けられているため、誤って組織を損傷する虞がある。▲2▼内チューブの軸方向に力がかかるので、切断器具の位置にぶれが生じ、所望の位置で正確に糸を切断するのが難しい。▲3▼切断器具の全長もしくはそれ以上に渡って、糸を内チューブの内側に通す必要があるので、その操作自体に非常な手間を要するものであり、従って、例えば腰の弱い(フレキシビリティの非常に高い)糸の場合には、適当な案内具が無ければ内チューブ内側の途中で引っ掛かってしまう虞があった。
本発明は如上の事情に鑑みてなされたもので、心腔内において、医療用の縫合糸を簡単かつ確実に切断することのできる器具(心腔内縫合手術用縫合糸切断器具)を提供することを目的とする。
【0008】
【課題を解決するための手段】
そこで、本発明者等は前記した課題を解決すべく鋭意研究を重ねた結果、本発明に想到した。すなわち本発明は、
(1) 基端にハブを備え先端部に側孔を有する先端の開口した外管と、
該外管の基端のハブから回動自在に挿着された、基端にハブを備え先端に側孔を有する先端の開口した内管から構成されてなり、
内管の外径が外管の内径より僅かに小さく形成されるとともに、内管の側孔が該内管を回転させた時に外管の側孔と少なくとも一部重なることができるように位置決めされてなり、
外管及び内管の先端開口部から挿入され、一部重なりあった内管及び外管の側孔を通って体外に導出された縫合糸を、内管を回転させ、該内管の側孔と外管の側孔の重なりが無くなる時に、側孔の縁部により切断することができる心腔内縫合手術用縫合糸切断器具;
(2) 外管の側孔の縁と内管の側孔の縁が鋭利に噛み合うことにより縫合糸を切断することができる(1)に記載の心腔内縫合手術用縫合糸切断器具;等に関する。
【0009】
【発明の実施の形態】
次に本発明の実施例について図面に基づいて説明する。
図1は本発明の一実施例を示す側面図であり、図2は図1の断面図である。また、図3は縫合糸を図1に示す器具の先端から側孔に通した時の説明図であり、図4は図1に示す器具を所望の切断位置まで進めたときの説明図、図5は図4において内管を僅かに回転させた状態を示す側孔部分の拡大図、図6は糸を切断する直前の状態を示す側孔部分の拡大図である。
図1および図2に示すように、本発明の心腔内縫合手術用縫合糸切断器具は、基端にハブ2を備えた外管1と、この外管1の基端のハブ2から回動自在に挿着された基端にハブ4を備えた内管3から構成されてなり、内管3の外径は外管1の内径より僅かに小さく形成されている。そして、外管1も内管3もそれぞれ先端に側孔11、31を有しており、内管3を回転させた時に側孔11と31が一部重なることができるように位置決めされている。
【0010】
内管3のハブ4の内腔41には、他の医療用具と接続可能なようにテーパーが設けられており、内管3と外管1の間には隙間(クリアランス)が設けられている。この隙間は、縫合糸の切断性能を考慮した場合、内管3を回転させるのに差し支えない限り、出来るだけ小さい方が好ましい。縫合糸の切断性能を更に良くするために、外管1の側孔11の縁部と内管3の側孔31の縁部に鋭利な刃物状の加工を施すなど、側孔11と側孔31が鋭利に噛み合うようにしてもよい。
【0011】
外管1と内管3の形成材料は、切断性能およびトルク伝達性を考慮した場合、ステンレス鋼等の金属が好ましいが、側孔11、31のエッジで縫合糸が切断でき、かつ内管3を回転させる際、手元(基端)のトルクが先端に十分伝わるのであればこれに限定されるものではなく、硬質の合成樹脂、例えばポリサルホン等も採用可能である。また、チューブ材料としてポリアミド11や高密度ポリエチレンを採用し、切断性能を良くするために側孔11、31の縁部のみに金属性材料を使用したり、必要ならばトルク伝達性を良くするために内管3を補強するなどしてもよい。
また、内管ハブ4や外管ハブ2の形成材料は、一般に、医療用として用いられる樹脂や金属であれば特に限定されるものではない。
【0012】
次に、本発明の心腔内縫合手術用縫合糸切断器具C(以下、単に切断器具という)の使用について説明する。
先ず、既に体内で結ばれその端部が体外に導出された状態の縫合糸Aを切断器具Cの先端開口5から内管3に挿入し、図3に示すように、縫合糸Aの端部を側孔31、11を通して外管1の外側に取り出す。次に、縫合糸Aの端部を把持したまま切断器具Cを体内に挿入して、その先端を閉鎖済みの組織Bの近くの所望の切断位置まで進める(図4参照)。ここで、外管ハブ2を手などで把持固定して内管ハブ4を回転させると、内管3が回転して、図5に示すように外管1の側孔11と内管3の側孔31がずれていき、少しずつ側孔11と31の重なり部分が狭くなる。やがて図6に示すように側孔11と31の重なり部分が殆ど無くなり、2つの側孔11、31の重なりが無くなる時に、丁度鋏で切るように側孔11と31の縁部により縫合糸Aが切断される。
【0013】
【発明の効果】
以上説明してきたことから明らかなように、本発明を採用することにより、心腔内縫合手術終了後、安全、確実かつ迅速に、心腔内において縫合糸を切断することができる。
【図面の簡単な説明】
【図1】本発明の一実施例を示す側面図である。
【図2】図1の縦断面図である。
【図3】縫合糸を図1に示す器具の先端から側孔に通した時の説明図である。
【図4】図1に示す器具を所望の切断位置まで進めたときの説明図である。
【図5】図4において内管を僅かに回転させた状態を示す側孔部分の拡大図である。
【図6】糸を切断する直前の状態を示す側孔部分の拡大図である。
【符号の説明】
1 外管
11 側孔
2 外管ハブ
3 内管
31 側孔
4 内管ハブ
A 縫合糸
C 心腔内縫合手術用縫合糸切断器具
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an instrument for cutting a suture for intracardiac suture surgery. More specifically, for example, when performing an operation for directly closing and closing an atrial septal defect (ASD), a ventricular septal defect (VSD), or a patent ductus arteriosus (PDA), a surgical site from a peripheral blood vessel by a cardiac catheter technique is used. in it is performed by inserting a suturing apparatus, such as intracardiac suturing surgical instrument suitable intracardiac suture surgical suture cutter to cut the sutures used for such suturing surgery in the body again and again Related.
[0002]
[Prior art]
As a method for treating ASD, which is one of congenital heart diseases, generally, a surgical operation is mainly used. However, as a matter of course, the surgical operation involves not only the treatment of the diseased part itself but also a thoracotomy (or laparotomy), and the burden on the patient is great. In the case of pediatric patients, the burden is very large.
Therefore, in recent years, a non-surgical method has been developed in which a cardiac catheter is inserted into a heart chamber transvascularly to occlude an atrial septal defect. This method is known as percutaneous transluminal catheterization, and the first clinical success was reported in 1976 by King and Mill. The method by King et al. Uses two disc-shaped umbrellas for the left atrium and the right atrium to reach the atrium with an insertion device consisting of a two-layer catheter coaxial with the central wire, and sandwich the atrial septum. By combining, the atrial septal defect is closed.
[0003]
However, this method uses a very thick insertion tool and a hard umbrella, so it could not be used at all for most children, particularly preschool children. Therefore, Rashkint tried to reduce the size of the device, and in 1977, devised a single-breasted closure plug with a hook and reported a clinical success example in children. However, in this method, the obstructing plug may get caught in an unintended part because of the hook, so once it is opened in the heart, it cannot be repositioned or recovered and an emergency operation must be performed. Had the disadvantages. Therefore, Rashkint has developed a closure plug in which two umbrellas are integrated in order to eliminate such a drawback, and this has been widely applied clinically to the closure of a patent artery duct.
[0004]
On the other hand, Lock added a coil spring in the middle of each of the 8 stainless steel bones of the two integrated umbrella closures developed by Rashkint, so that the two umbrellas securely insert the thin atrial septum Has developed and applied for a patent (Japanese Patent Laid-Open No. 5-297130). This closure plug is designed to be firmly fixed to a thin atrial septum by sticking two umbrellas so that they overlap each other, and its shape resembles a bivalve shell. It is called a type septum umbrella. In this method, an 11 French long sheath is inserted from the femoral vein and can be used if the patient has a body weight of 8 kg or more. As a method of occlusion by percutaneous transluminal catheterization of an atrial septal defect For the first time, it has been widely applied clinically.
[0005]
However, in any case, those using these closure plugs use a uniform closure plug for various forms of ASD. Because a closure plug of a size is required, the indication is limited, and it has the disadvantage that only a relatively small defect hole can be closed, and long-term observation data of the closure plug left in the heart There was no concern for its use.
In view of the above circumstances, the present inventors have already proposed a catheter assembly for intracardiac suture surgery suitable for adapting to various forms of ASD as a solution to the problems of the prior art. (Japanese Patent Application No. 7-269916). This includes a capture catheter having a suture capturing means at the distal end and an operation member at the proximal end, a first sheath into which the capture catheter can be inserted / removed, and a first sheath to / from which can be inserted / extracted. A puncture catheter having a puncture needle at the distal end and a hemostasis valve at the proximal end, and a stasis valve at the proximal end can be inserted and removed freely. A side hole provided in the distal end portion of the puncture catheter and the second sheath when the distal end of the puncture catheter inserted into the second sheath is aligned with the distal end of the second sheath. The side holes provided at the tip of each of the first and second overlapping portions overlap each other, and the first sheath can be exposed from the overlapping side holes.
[0006]
Such a non-surgical instrument for closing the defect opening has the advantage that the defect opening can be closed easily and accurately, but after tying the thread, cut the thread as close to the thread knot as possible. When trying to do so, the thread must be cut in the heart chamber, so that it requires a great skill to cut the thread. Therefore, an instrument for cutting the thread in the body is required, and in Japanese Patent Publication No. 5-60934, it consists of an inner tube provided with a cutting blade at the tip and an outer tube provided with a cutting blade pressing portion. A yarn cutting device has been proposed in which the yarn pressed against the outer tube is cut by the cutting blade portion of the inner tube moved in the axial direction.
[0007]
[Problems to be solved by the invention]
However, in the above-described yarn cutting device, (1) the cutting blade portion pressing portion is provided on the outer tube, but the cutting blade portion that moves in the axial direction is provided at the tip of the inner tube. There is a risk of accidental tissue damage. {Circle around (2)} A force is applied in the axial direction of the inner tube, so that the position of the cutting tool fluctuates and it is difficult to accurately cut the yarn at the desired position. (3) Since it is necessary to pass the thread through the inside of the inner tube over the entire length of the cutting device or more, the operation itself is very troublesome. In the case of a very high thread, there was a risk of being caught in the middle of the inner tube without an appropriate guide.
The present invention has been made in view of the above circumstances, and provides an instrument (a suture cutting instrument for intracardiac suture surgery) that can easily and reliably cut a medical suture in a heart chamber. For the purpose.
[0008]
[Means for Solving the Problems]
Accordingly, the inventors of the present invention have arrived at the present invention as a result of intensive studies to solve the above-described problems. That is, the present invention
(1) an outer tube having a hub at the proximal end and having a side hole at the distal end and having an open end;
Is inserted rotatably from the proximal end of the hub of the outer tube, it is composed of an inner tube which is open at the tip with a side hole in the tip comprises a hub on the proximal end,
The outer diameter of the inner tube is formed to be slightly smaller than the inner diameter of the outer tube, and the side hole of the inner tube is positioned so that it can overlap at least partially with the side hole of the outer tube when the inner tube is rotated. And
Is inserted from the opening at the distal end of the outer tube and the inner tube, the suture through the side hole is lead to the outside of the inner tube and the outer tube which overlap partially rotate the inner tube, the side hole of the inner tube and when the side hole overlap is eliminated of the outer tube, the side holes of the edges intracardiac suture surgical suture cutting apparatus that may be more cut;
(2) The suture cutting instrument for intracardiac suture surgery according to (1), wherein the suture can be cut by sharply engaging the edge of the side hole of the outer tube and the edge of the side hole of the inner tube ; About.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a side view showing an embodiment of the present invention, and FIG. 2 is a cross-sectional view of FIG. 3 is an explanatory diagram when the suture thread is passed through the side hole from the tip of the instrument shown in FIG. 1, and FIG. 4 is an explanatory diagram when the instrument shown in FIG. 1 is advanced to a desired cutting position. 5 is an enlarged view of the side hole portion showing a state where the inner tube is slightly rotated in FIG. 4, and FIG. 6 is an enlarged view of the side hole portion showing a state immediately before cutting the yarn.
As shown in FIGS. 1 and 2, the suture cutting instrument for intracardiac suture surgery of the present invention is rotated from an outer tube 1 having a hub 2 at the proximal end and a hub 2 at the proximal end of the outer tube 1. The inner tube 3 is provided with a hub 4 at the base end that is movably inserted. The outer diameter of the inner tube 3 is slightly smaller than the inner diameter of the outer tube 1. Both the outer tube 1 and the inner tube 3 have side holes 11 and 31 at their tips, and are positioned so that the side holes 11 and 31 can partially overlap when the inner tube 3 is rotated. .
[0010]
The lumen 41 of the hub 4 of the inner tube 3 is tapered so that it can be connected to other medical devices, and a gap (clearance) is provided between the inner tube 3 and the outer tube 1. . In consideration of the cutting performance of the suture thread, the gap is preferably as small as possible as long as the inner tube 3 can be rotated. In order to further improve the cutting performance of the suture thread, the side hole 11 and the side hole, such as sharp edge-like processing, are performed on the edge of the side hole 11 of the outer tube 1 and the edge of the side hole 31 of the inner tube 3. 31 may be sharply engaged.
[0011]
The material for forming the outer tube 1 and the inner tube 3 is preferably a metal such as stainless steel in consideration of cutting performance and torque transmission. However, the suture can be cut at the edges of the side holes 11 and 31, and the inner tube 3 When the hand is rotated, the hand (base end) torque is not limited to this as long as it is sufficiently transmitted to the tip, and a hard synthetic resin such as polysulfone can also be employed. Also, polyamide 11 or high-density polyethylene is used as the tube material, and a metallic material is used only for the edges of the side holes 11 and 31 in order to improve cutting performance, or torque transmission is improved if necessary. The inner tube 3 may be reinforced.
The material for forming the inner tube hub 4 and the outer tube hub 2 is not particularly limited as long as it is a resin or metal generally used for medical purposes.
[0012]
Next, the use of the suture cutting device C for intracardiac suture surgery of the present invention (hereinafter simply referred to as a cutting device) will be described.
First, the suture A that has already been tied in the body and whose end is led out of the body is inserted into the inner tube 3 from the distal end opening 5 of the cutting instrument C, and as shown in FIG. Is taken out of the outer tube 1 through the side holes 31 and 11. Next, the cutting instrument C is inserted into the body while holding the end of the suture thread A, and the tip is advanced to a desired cutting position near the closed tissue B (see FIG. 4). Here, when the outer tube hub 2 is gripped and fixed by hand and the inner tube hub 4 is rotated, the inner tube 3 is rotated, and as shown in FIG. The side holes 31 are displaced and the overlapping portions of the side holes 11 and 31 are gradually reduced. Eventually, as shown in FIG. 6, there is almost no overlap between the side holes 11 and 31, and when there is no overlap between the two side holes 11 and 31, the suture A Is disconnected.
[0013]
【The invention's effect】
As is apparent from the above description, by adopting the present invention, it is possible to safely, surely and quickly cut the suture in the heart cavity after the intracardiac suture surgery.
[Brief description of the drawings]
FIG. 1 is a side view showing an embodiment of the present invention.
FIG. 2 is a longitudinal sectional view of FIG.
3 is an explanatory view when a suture thread is passed through the side hole from the distal end of the instrument shown in FIG. 1; FIG.
FIG. 4 is an explanatory view when the instrument shown in FIG. 1 is advanced to a desired cutting position.
FIG. 5 is an enlarged view of a side hole portion showing a state where the inner tube is slightly rotated in FIG. 4;
FIG. 6 is an enlarged view of a side hole portion showing a state immediately before cutting the yarn.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Outer tube 11 Side hole 2 Outer tube hub 3 Inner tube 31 Side hole 4 Inner tube hub A Suture C Suture cutting device for intracardiac suture operation

Claims (2)

基端にハブを備え先端部に側孔を有する先端の開口した外管と、
該外管の基端のハブから回動自在に挿着された、基端にハブを備え先端に側孔を有する先端の開口した内管から構成されてなり、
内管の外径が外管の内径より僅かに小さく形成されるとともに、内管の側孔が該内管を回転させた時に外管の側孔と少なくとも一部重なることができるように位置決めされてなり、
外管及び内管の先端開口部から挿入され、一部重なりあった内管及び外管の側孔を通って体外に導出された縫合糸を、内管を回転させ、該内管の側孔と外管の側孔の重なりが無くなる時に、側孔の縁部により切断することができる心腔内縫合手術用縫合糸切断器具。
An outer tube having a hub at the proximal end and an opening at the distal end having a side hole at the distal end;
Is inserted rotatably from the proximal end of the hub of the outer tube, it is composed of an inner tube which is open at the tip with a side hole in the tip comprises a hub on the proximal end,
The outer diameter of the inner tube is formed to be slightly smaller than the inner diameter of the outer tube, and the side hole of the inner tube is positioned so that it can overlap at least partially with the side hole of the outer tube when the inner tube is rotated. And
Is inserted from the opening at the distal end of the outer tube and the inner tube, the suture through the side hole is lead to the outside of the inner tube and the outer tube which overlap partially rotate the inner tube, the side hole of the inner tube and when the side hole overlap eliminates the outer tube, it is possible to further cut the edge of the side hole intracardiac suture surgical suture cutting instrument.
外管の側孔の縁と内管の側孔の縁が鋭利に噛み合うことにより縫合糸を切断することができる請求項1に記載の心腔内縫合手術用縫合糸切断器具。The suture cutting instrument for intracardiac suture surgery according to claim 1, wherein the suture can be cut by sharply engaging the edge of the side hole of the outer tube and the edge of the side hole of the inner tube.
JP06078496A 1996-03-18 1996-03-18 Suture cutting device for intracardiac suture surgery Expired - Fee Related JP3859257B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP06078496A JP3859257B2 (en) 1996-03-18 1996-03-18 Suture cutting device for intracardiac suture surgery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP06078496A JP3859257B2 (en) 1996-03-18 1996-03-18 Suture cutting device for intracardiac suture surgery

Publications (2)

Publication Number Publication Date
JPH09248307A JPH09248307A (en) 1997-09-22
JP3859257B2 true JP3859257B2 (en) 2006-12-20

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Publication number Priority date Publication date Assignee Title
WO2007001936A2 (en) * 2005-06-20 2007-01-04 Sutura, Inc. Method and apparatus for applying a knot to a suture
JP7007355B2 (en) * 2016-07-14 2022-01-24 ストライカー・ユーロピアン・ホールディングス・I,リミテッド・ライアビリティ・カンパニー Cutting assembly for surgical instruments with a clogging reduction tip
MX2020013973A (en) * 2018-07-12 2021-06-15 Valtech Cardio Ltd Annuloplasty systems and locking tools therefor.

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