JP2007082674A - Medical dilator - Google Patents

Medical dilator Download PDF

Info

Publication number
JP2007082674A
JP2007082674A JP2005273669A JP2005273669A JP2007082674A JP 2007082674 A JP2007082674 A JP 2007082674A JP 2005273669 A JP2005273669 A JP 2005273669A JP 2005273669 A JP2005273669 A JP 2005273669A JP 2007082674 A JP2007082674 A JP 2007082674A
Authority
JP
Japan
Prior art keywords
plate
medical
incision
spreader
rounded
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2005273669A
Other languages
Japanese (ja)
Inventor
Junji Imanishi
順治 今西
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP2005273669A priority Critical patent/JP2007082674A/en
Publication of JP2007082674A publication Critical patent/JP2007082674A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Media Introduction/Drainage Providing Device (AREA)
  • Materials For Medical Uses (AREA)
  • Surgical Instruments (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a medical dilator capable of holding an incision in an opened state with uniform force without concentrating force on only a part of the peripheral edge part of the incision and being easily mounted even on a small incision part. <P>SOLUTION: A rectangular flat body 1 formed of an elastic material such as plastic or a metal is rounded without joining both end edges and formed into a cylindrical shape to attain the medical dilator. When mounting the medical dilator on the incision, as illustrated in Fig. 1(α), the flat body 1 is rounded small into a cylinder of a small diameter against the elastic force of the planar body 1. It is held in a hand and mounted on the incision while maintaining the rounded state. Then, when the hand is released after it is mounted, as illustrated in Fig. 1(β), it is spread by the elastic force of the flat body 1, the diameter of the cylinder is increased and the incision is held in an opened state. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、切開手術を行う際に、切開創を開いた状態に保持する開創器や、尿道，血管等の狭窄部を拡開保持するステントのような医療用拡開器に関するものである。   The present invention relates to a medical spreader such as a retractor that holds an incision in an open state and a stent that expands and holds a stenosis portion such as a urethra or a blood vessel when performing an open operation.

切開手術を行う場合、切開した開創部は、それ自体に閉じようとする力が働く。そこで、手術中、術部が視認でき、支障なく手術が行えるようにするため、開創器を使って切開創を開いた状態に保持するようにしている。従来、開創器として最も簡単なものは、Ｌ字型に曲がった棒状の器具を開創部に掛けて、手術助手が手で引っ張って保持するというものがある。また、手術助手の手を必要としない自己保持型の開創器も用いられている。   When performing an incision operation, a force to close the incised retractor is applied to itself. Therefore, during surgery, the surgical site is visually recognized, and the incision is held in an open state using a retractor so that the surgery can be performed without hindrance. Conventionally, the simplest retractor is a device in which a bar-shaped instrument bent in an L shape is hung on a retracted portion, and a surgical assistant pulls and holds it by hand. Self-holding retractors that do not require a surgical assistant are also used.

さらに、特許文献１に示されるように、弾性チューブ状の閉ループ部材を開創部に入れて、チューブ中に空気等を圧入することにより膨らませて開創部を拡開するようにした開創器や、特許文献２に示されるように、同軸に対向配置した二つの超弾性合金製円形リングを、筒状弾性部材の両端部に、筒状弾性部材が扁平な鼓型になるようにして取り付けた開創器も提案されている。
特開昭５６−１３６５３８号公報 実用新案登録第３０６２１０６号公報 Furthermore, as shown in Patent Document 1, a retractor in which an elastic tube-like closed loop member is placed in the retracted portion and inflated by press-fitting air or the like into the tube to expand the retracted portion, or a patent As shown in Document 2, a retractor in which two superelastic alloy circular rings arranged coaxially and oppositely are attached to both ends of a cylindrical elastic member so that the cylindrical elastic member has a flat drum shape. Has also been proposed.
JP 56-136538 A Utility Model Registration No. 30602106

しかしながら、上記従来の開創器の内、Ｌ字型に曲がった棒状の器具を開創部に掛けて、手術助手が手で引っ張って保持するものは、手術助手が常に保持している必要がある上、開創部の器具を掛けた部分に外力が集中するため、その部分が傷つきやすいという問題点があった。また、自己保持型の開創器も、同様に、開創部の器具を掛けた部分が傷つきやすいという問題点があった。一方、特許文献１，２に示されるものにはそのような問題はないが、開創部に器具を装着するのに手間がかかるという問題点があった。   However, among the above-described conventional retractors, the surgical assistant who holds a rod-shaped instrument bent in an L shape on the retracted portion and is pulled by hand needs to be always held by the surgical assistant. Since the external force concentrates on the part of the retracted part where the device is hung, the part is easily damaged. Similarly, the self-holding retractor has a problem in that the portion of the retracting part on which the device is hung is easily damaged. On the other hand, there is no such problem in the ones shown in Patent Documents 1 and 2, but there is a problem that it takes time and effort to attach the instrument to the wound part.

例えば、脳の手術では、切開部の大きさをできるだけ小さくして手術を行うが、そのような小さい切開部に、特許文献１に示されるような、空気圧入前で形状が定まらない弾性チューブ状の閉ループ部材を挿入するのは非常に手間がかかる。また、特許文献２に示されるような、二つの超弾性合金製円形リングの内の一方を押しつぶしながら、小さい切開部に挿入するのも非常に手間がかかる。   For example, in brain surgery, the size of the incision is reduced as much as possible, and such a small incision has an elastic tube shape that does not have a fixed shape before entering air pressure as disclosed in Patent Document 1. It is very troublesome to insert the closed loop member. Further, as shown in Patent Document 2, it is very troublesome to insert one of two superelastic alloy circular rings into a small incision while crushing one of them.

本発明は、そのような問題点に鑑み、手術助手による保持を必要とせず、開創部の一部に外力が集中することなく、小さい開創部への装着も容易な医療用拡開器を提供することを目的とするものである。   In view of such problems, the present invention provides a medical spreader that does not require holding by a surgical assistant, does not concentrate external force on a part of the retracted part, and can be easily attached to a small retracted part. It is intended to do.

前記課題を解決するため、請求項１に記載の医療用拡開器は、弾性を有する長方形の板状体を、始端と終端が摺動可能な状態で丸めて円筒状に成形したことを特徴とする。   In order to solve the above-mentioned problem, the medical spreader according to claim 1 is characterized in that a rectangular plate having elasticity is rounded in a state where the start and end are slidable and formed into a cylindrical shape. And

また、請求項２に記載の医療用拡開器は、前記板状体の一端部幅方向にコの字状の挿通片を設け、板状体の他端部をその中に挿通するとともに直角に折り曲げて係止縁を形成したことを特徴とする。   The medical spreader according to claim 2 is provided with a U-shaped insertion piece in the width direction of one end portion of the plate-like body, and the other end portion of the plate-like body is inserted therein and at a right angle. It is characterized in that it is bent to form a locking edge.

また、請求項３に記載の医療用拡開器は、多数本の超弾性線材を平行に並べ、隣接する超弾性線材を互いに接合することにより前記板状体を形成し、超弾性線材の長さ方向に丸めたものであることを特徴とする。   The medical spreader according to claim 3 forms the plate-like body by arranging a number of superelastic wires in parallel and joining adjacent superelastic wires to each other. It is characterized by being rounded in the vertical direction.

また、請求項４に記載の医療用拡開器は、少なくとも外周面を、柔軟で伸縮性を有する材料で覆ったことを特徴とする。   The medical spreader according to claim 4 is characterized in that at least the outer peripheral surface is covered with a flexible and stretchable material.

また、請求項５に記載の医療用拡開器は、細径で、長さ方向にスリット状の引出開口を有する巻込筒の中に、前記板状体を丸めて縮径した状態で収納し、前記引出開口から引き出した時、径が拡開するようにしたことを特徴とする。   Further, the medical spreader according to claim 5 is stored in a state where the plate-like body is rounded and reduced in diameter in a winding cylinder having a small diameter and having a slit-like extraction opening in the length direction. And, when pulled out from the pull-out opening, the diameter is expanded.

また、請求項６に記載の医療用拡開器は、コの字状枠体の上下の平行板に軸回転自在に支持され、上端にハンドルが連結され、長さ方向にスリットが設けられた巻芯に、前記板状体を巻き込んで円筒状に成形したことを特徴とする。   Further, the medical spreader according to claim 6 is supported by the upper and lower parallel plates of the U-shaped frame so as to be axially rotatable, a handle is connected to the upper end, and a slit is provided in the length direction. The plate-like body is wound around a winding core and formed into a cylindrical shape.

本発明の医療用拡開器は、次のような効果を奏する。
すなわち、請求項１に記載の医療用拡開器は、弾性を有する長方形の板状体を、始端と終端が摺動可能な状態で丸めて円筒状に成形したので、手術助手による保持を必要とせず、開創部の一部に外力が集中することなく、小さい開創部への装着も容易になる。 The medical spreader of the present invention has the following effects.
That is, the medical spreader according to claim 1 is formed in a cylindrical shape by rounding a rectangular plate having elasticity so that the starting end and the ending end are slidable. In other words, the external force is not concentrated on a part of the retracted portion, and mounting on a small retracted portion is facilitated.

また、請求項２に記載の医療用拡開器は、前記板状体の一端部幅方向にコの字状の挿通片を設け、板状体の他端部をその中に挿通するとともに直角に折り曲げて係止縁を形成したので、板状体に曲げ加工を施さなくても、全体が小径の円筒になるように小さく丸め込んだ状態から手を離したとき、係止縁が挿通片に引っ掛かって、大径の円筒形の状態に保持される。   The medical spreader according to claim 2 is provided with a U-shaped insertion piece in the width direction of one end portion of the plate-like body, and the other end portion of the plate-like body is inserted therein and at a right angle. Since the locking edge is formed by bending the plate, the locking edge is not inserted into the insertion piece when the hand is released from the state of being rolled up into a small-diameter cylinder without bending the plate-like body. It is caught and held in a large-diameter cylindrical state.

また、請求項３に記載の医療用拡開器は、多数本の超弾性線材を平行に並べ、隣接する超弾性線材を互いに接合することにより前記板状体を形成し、超弾性線材の長さ方向に丸めるようにしたので、超弾性を有する板状体を比較的容易に形成することができる。   The medical spreader according to claim 3 forms the plate-like body by arranging a number of superelastic wires in parallel and joining adjacent superelastic wires to each other. Since it is rounded in the vertical direction, a plate-like body having superelasticity can be formed relatively easily.

また、請求項４に記載の医療用拡開器は、少なくとも外周面を、柔軟で伸縮性を有する材料で覆ったので、多数本の超弾性線材で形成した板状体の表面に凹凸条ができても、それと接触する切開創周縁部が凹部に食い込んでしまうおそれがなくなる。   In the medical spreader according to claim 4, since at least the outer peripheral surface is covered with a flexible and stretchable material, uneven surfaces are formed on the surface of the plate-like body formed of a plurality of superelastic wires. Even if it is possible, there is no possibility that the peripheral part of the incision wound in contact therewith will bite into the recess.

また、請求項５に記載の医療用拡開器は、細径で、長さ方向にスリット状の引出開口を有する巻込筒の中に、前記板状体を丸めて縮径した状態で収納し、前記引出開口から引き出した時、径が拡開するようにしたので、板状体をきわめて径細の状態に保持でき、切開創へはその状態で装着できるので、脳の手術のように、ごく僅かしか切開できない小さい開創部への装着も容易になる。   Further, the medical spreader according to claim 5 is stored in a state where the plate-like body is rounded and reduced in diameter in a winding cylinder having a small diameter and having a slit-like extraction opening in the length direction. And when pulled out from the pull-out opening, the diameter expands, so the plate-like body can be held in a very thin state and can be attached to the incision in that state, so as in brain surgery Also, it is easy to attach to a small wound part that can be incised very little.

また、請求項６に記載の医療用拡開器は、コの字状枠体の上下の平行板に軸回転自在に支持され、上端にハンドルが連結され、長さ方向にスリットが設けられた巻芯に、前記板状体を巻き込んで円筒状に成形したので、板状体を細く巻き込むことができるとともに、板状体の巻き込みが容易になり、巻き込んだ状態の保持も容易になる。   Further, the medical spreader according to claim 6 is supported by the upper and lower parallel plates of the U-shaped frame so as to be axially rotatable, a handle is connected to the upper end, and a slit is provided in the length direction. Since the plate-like body is wound around the winding core and formed into a cylindrical shape, the plate-like body can be wound thinly, and the plate-like body can be easily wound and the state of being wound can be easily held.

以下、本発明の実施例を図面に基づいて詳細に説明する。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

図１は、本発明の第１実施例を示す図である。図１において、１は、プラスチック，金属等、弾性材料よりなる薄肉の板状体である。プラスチック製の板状体としては、例えば、ポリウレタンのシートを用いることができる。また、金属製の板状体としては、例えば、ステンレス薄板を用いることができる。また、超弾性合金の薄板を用いることもできる。板状体１は、長方形の弾性板に、機械的又は熱的作用により曲げ加工を施して、図１（ロ）に示すような大径の円筒形になるようにしておく。この医療用拡開器は、切開手術を行う際に、切開創を開いた状態に保持するための開創器として使用できる。   FIG. 1 is a diagram showing a first embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a thin plate-like body made of an elastic material such as plastic or metal. For example, a polyurethane sheet can be used as the plastic plate-like body. Moreover, as a metal plate-shaped body, a stainless steel thin plate can be used, for example. A thin plate of superelastic alloy can also be used. The plate-like body 1 is formed by bending a rectangular elastic plate by mechanical or thermal action so as to have a large-diameter cylindrical shape as shown in FIG. This medical spreader can be used as a retractor for holding the incision open when performing an open operation.

図１（イ）に示すように、医療用拡開器を切開創へ装着する際には、板状体１の弾性力に抗して、全体が小径の円筒になるように板状体１を小さく丸め込む。そして、手で持って、その状態を維持させながら切開創へ装着する。そして、装着後に手を離すと、図１（ロ）に示すように、板状体１の弾性力で拡開して円筒の径が大きくなる。   As shown in FIG. 1 (a), when the medical spreader is attached to the incision, the plate-like body 1 is formed so that the whole becomes a small-diameter cylinder against the elastic force of the plate-like body 1. Round down small. Then, hold it by hand and attach it to the incision while maintaining that state. Then, when the hand is released after the attachment, as shown in FIG.

図６は、本発明の医療用拡開器の装着説明図であり、図６（イ）は、挿入前の切開創を示し、図６（ロ）は、切開創１１へ医療用拡開器を挿入した直後の状態を示し、図５（ハ）は、弾性力により医療用拡開器が拡開した状態を示している。図５（ハ）から明らかなように、医療用拡開器が拡開した状態で、切開創１１を拡開することになって、手術助手による保持を必要とせず、拡開力が一部分に集中することもない。さらに、切開創へ装着する際には、小径の円筒になるように小さく丸め込むので、小さい開創部への装着も容易である。   FIG. 6 is a view for explaining the mounting of the medical spreader of the present invention. FIG. 6 (a) shows the incision before insertion, and FIG. 6 (b) shows the medical spreader to the incision 11. FIG. 5 (C) shows a state where the medical spreader is expanded by the elastic force. As is clear from FIG. 5 (c), the incision 11 is expanded in a state where the medical spreader is expanded, so that the holding force by the surgical assistant is not required, and the expanding force is partially applied. There is no concentration. Furthermore, when mounting on an incision, it is rounded down to a small diameter cylinder, so mounting on a small wound is easy.

図２は本発明の第２実施例を示す図である。この実施例では、板状体１の一端部幅方向に、すなわち、板状体１の上縁から下縁に差し渡すようにコの字状の挿通片１ａを設け、板状体１の他端部をその中に挿通するとともに直角に折り曲げて係止縁１ｂを形成している。このようにすれば、板状体１に曲げ加工を施さなくても、全体が小径の円筒になるように小さく丸め込んだ状態から手を離したとき、板状体１の反発力により円筒の径は拡大するが、係止縁１ｂが挿通片１ａの位置まで来ると、係止縁１ｂが挿通片１ａに引っ掛かって、図２に示すような大径の円筒形のまま保持される。なお、挿通片１ａは、必ずしも板状体１の上縁から下縁まで連続させる必要はなく、中間部を省略した形状、すなわち、上縁と下縁とにＬ字状の突片を取り付けた形状にしてもよい。   FIG. 2 is a diagram showing a second embodiment of the present invention. In this embodiment, a U-shaped insertion piece 1 a is provided in the width direction of one end of the plate-like body 1, that is, so as to pass from the upper edge to the lower edge of the plate-like body 1. The end portion is inserted through the end portion and bent at a right angle to form a locking edge 1b. In this way, even if the plate-like body 1 is not bent, the diameter of the cylinder is reduced by the repulsive force of the plate-like body 1 when the hand is released from the state of being rounded down so that the whole becomes a small-diameter cylinder. However, when the locking edge 1b reaches the position of the insertion piece 1a, the locking edge 1b is caught by the insertion piece 1a and is held in a large-diameter cylindrical shape as shown in FIG. Note that the insertion piece 1a does not necessarily have to be continuous from the upper edge to the lower edge of the plate-like body 1, and has an L-shaped projecting piece attached to the upper edge and the lower edge in a shape in which the intermediate portion is omitted. You may make it a shape.

図３は本発明の第３実施例を示す図である。この実施例では、多数本の超弾性線材２を平行に並べ、それらを溶接部３で互いに接合して板状体を形成している。そして、それを超弾性線材２の長さ方向に、図１と同様に丸め込んで筒状に形成する。一般に、超弾性合金を板状に形成するには高度の技術を要するが、このように、多数本の超弾性線材２を平行に並べて板状体を形成するようにすれば、超弾性を有する板状体を比較的容易に形成できる。   FIG. 3 is a diagram showing a third embodiment of the present invention. In this embodiment, a large number of superelastic wires 2 are arranged in parallel, and they are joined to each other by a welded portion 3 to form a plate-like body. And it is rolled in the length direction of the superelastic wire 2 like FIG. 1, and is formed in a cylinder shape. In general, a high level of technology is required to form a superelastic alloy into a plate shape. Thus, when a plate-like body is formed by arranging a large number of superelastic wire 2 in parallel, the superelasticity is obtained. A plate-like body can be formed relatively easily.

ただ、多数本の超弾性線材２を平行に並べて板状体を形成した場合、板状体の表面に凹凸条ができて、それと接触する切開創１１周縁部が凹部に食い込んでしまうおそれがある。そこで、多数本の超弾性線材２を平行に並べて形成した板状体の外周面を柔軟で伸縮性を有する材料で覆うか、あるいは、柔軟で伸縮性を有する材料の中に板状体全体を埋め込むようにしてもよい。覆う材料としては、例えば、シリコーン樹脂，ラテックス等を用いることができる。シリコーン樹脂は、ラテックスより多少伸縮性が劣るが、耐久性の面で優れている。一方、ラテックスは、十分な伸縮性を有している反面、耐久性の面やや劣る。   However, when a plate-like body is formed by arranging a large number of superelastic wires 2 in parallel, irregularities are formed on the surface of the plate-like body, and the peripheral edge of the incision 11 that comes into contact therewith may bite into the recess. . Therefore, the outer peripheral surface of the plate-like body formed by arranging a large number of superelastic wires 2 in parallel is covered with a flexible and stretchable material, or the entire plate-like body is covered with a flexible and stretchable material. It may be embedded. As the covering material, for example, silicone resin, latex, or the like can be used. Silicone resin is somewhat inferior in elasticity to latex, but is excellent in terms of durability. On the other hand, latex has sufficient elasticity but is slightly inferior in durability.

図４は本発明の第４実施例を示す図である。図４において、４は板状体、５は巻込筒、６は引出開口である。この実施例では、図４（イ）に示すように、板状体４を、事前に径の小さい巻込筒５の中に巻き込み収納しておく。巻込筒５には、長さ方向にスリット状の引出開口６を設けてあり、その引出開口６から板状体４の先端部を出しておく。そして、使用する際には、板状体４を巻込筒５に入れた状態で切開創１１に挿入した後、引出開口６を通して板状体４を巻込筒５から引き出して、図４（ロ）に示すように、板状体４の弾性により径を拡開させ、切開創１１を開いた状態に保持する。   FIG. 4 is a diagram showing a fourth embodiment of the present invention. In FIG. 4, 4 is a plate-shaped body, 5 is a winding cylinder, and 6 is a drawer opening. In this embodiment, as shown in FIG. 4 (a), the plate-like body 4 is wound in advance and stored in a winding cylinder 5 having a small diameter. The winding cylinder 5 is provided with a slit-like extraction opening 6 in the length direction, and the tip of the plate-like body 4 is drawn out from the extraction opening 6. In use, the plate-like body 4 is inserted into the incision wound 11 in a state where the plate-like body 4 is put in the winding cylinder 5, and then the plate-like body 4 is pulled out from the winding cylinder 5 through the drawing opening 6. As shown in (b), the diameter is expanded by the elasticity of the plate-like body 4, and the incision 11 is held open.

このようにすれば、巻込筒５により、板状体４をきわめて径細の状態に保持でき、切開創へはその状態で装着できるので、脳の手術のように、ごく僅かしか切開できない小さい開創部への装着も容易である。   In this way, the plate-like body 4 can be held in a very thin state by the entraining cylinder 5 and can be attached to the incision in that state, so that it can be incised very little like brain surgery. It is easy to attach to the retracted part.

図５は、本発明の第５実施例を示す図である。図５において、７はコの字状枠体、８は巻芯、９はハンドル、１０はスリットである。図５（イ）は、板状体１を巻き込む前の状態を示し、図５（ロ）は、板状体１を巻き込んだ状態を示している。   FIG. 5 is a diagram showing a fifth embodiment of the present invention. In FIG. 5, 7 is a U-shaped frame, 8 is a winding core, 9 is a handle, and 10 is a slit. FIG. 5 (a) shows a state before the plate-like body 1 is rolled up, and FIG. 5 (b) shows a state where the plate-like body 1 is rolled up.

巻芯８は、コの字状枠体７の上下にある平行板に軸回転自在に支持されており、その上端は、ハンドル９に連結されている。巻芯８には、長さ方向にスリット１０が設けられていて、その中に、弾性を有する板状体１の端縁部を挿入して固定する。その状態で、ハンドル９を一方向に回転させると、巻芯８に板状体１が巻き込まれていき、最後に、図５（ロ）に示す状態になる。そして、ハンドル９をストッパ（図示せず）等でコの字状枠体７に固定すると、板状体１は、巻芯８に巻き込まれた、細径の円筒形の状態で保持される。その状態で開創部へ装着し、ストッパを外してハンドル９を巻き戻すと、板状体１が弾性力で径大に拡がり、開創部を拡開する。   The winding core 8 is rotatably supported by parallel plates on the upper and lower sides of the U-shaped frame 7, and its upper end is connected to a handle 9. The core 8 is provided with a slit 10 in the length direction, and an edge portion of the elastic plate-like body 1 is inserted and fixed therein. In this state, when the handle 9 is rotated in one direction, the plate-like body 1 is wound around the winding core 8, and finally the state shown in FIG. Then, when the handle 9 is fixed to the U-shaped frame 7 with a stopper (not shown) or the like, the plate-like body 1 is held in a thin cylindrical shape wound around the core 8. When it is attached to the retracting part in that state, the stopper is removed, and the handle 9 is rewound, the plate-like body 1 expands in diameter by the elastic force, and the retracting part is expanded.

あるいは、巻芯８をコの字状枠体７から引き抜き可能な構造にしておいてもよい。そのようにすれば、板状体１を巻芯８に巻き込んだ状態で、開創部へ装着した後、巻芯８をコの字状枠体７及び板状体１から引き抜けば、板状体１はワンタッチで解放されて、拡がることができる。   Alternatively, the core 8 may be structured so as to be pulled out from the U-shaped frame 7. If it does in that way, after mounting the plate-shaped body 1 in the wound core 8 and attaching it to a wound part, if the core 8 is pulled out from the U-shaped frame body 7 and the plate-shaped body 1, plate shape The body 1 can be released and expanded with a single touch.

また、巻芯８にスリット１０を設けずに、接着剤等を使って、巻芯８に板状体１の一端を接着して固定してしまい、板状体１と巻芯８，コの字状枠体７とを分離しないまま開創部へ装着するようにしてもよい。そのようにすれば、一旦、開創部へ装着した後でも、ハンドル９を巻けば、再び細径の円筒形の状態に戻すことができ、取り外しや位置調整等をするときに作業が容易になる。   Also, without providing the slit 10 in the core 8, one end of the plate-like body 1 is bonded and fixed to the core 8 using an adhesive or the like, so that the plate-like body 1 and the core 8 can be fixed together. You may make it mount | wear to a retracting part, without isolate | separating the character-shaped frame body 7. FIG. If it does in that way, even if it once attaches to a retraction part, if the handle | steering-wheel 9 is wound, it can return to the state of a small diameter cylindrical shape again, and an operation | work will become easy when removing, position adjustment, etc. .

いずれにしても、この実施例のようにすれば、板状体１を細く巻き込むことができるとともに、板状体１の巻き込みが容易になり、巻き込んだ状態の保持も容易になる。   In any case, according to this embodiment, the plate-like body 1 can be rolled up thinly, and the plate-like body 1 can be easily rolled up, and the rolled-up state can be easily held.

なお、上記実施例では、板状体１を上下が同径の円筒状に巻き込む場合で説明したが、板状体１を上下が径が異なる状態、すなわち、テーパを有する円筒状に巻き込むようにしてもよい。そのようにすれば、開創部への装着が容易になる。また、上記実施例では、開創器として使用する場合で説明したが、本発明の医療用拡開器は、尿道，血管等の狭窄部を拡開保持するステントとしても適用可能であり、内視鏡や手術器具を通すための通路を確保するためのトロカーとしても適用可能である。   In the above embodiment, the case where the plate-like body 1 is wound in a cylindrical shape having the same diameter on the upper and lower sides has been described. May be. By doing so, the attachment to the retracting portion is facilitated. Further, in the above-described embodiments, the case of using as a retractor has been described. However, the medical spreader of the present invention can also be applied as a stent that expands and holds a narrowed portion such as a urethra and a blood vessel. The present invention can also be applied as a trocar for securing a passage for passing a mirror or a surgical instrument.

本発明の第１実施例を示す図である。It is a figure which shows 1st Example of this invention. 本発明の第２実施例を示す図である。It is a figure which shows 2nd Example of this invention. 本発明の第３実施例を示す図である。It is a figure which shows 3rd Example of this invention. 本発明の第４実施例を示す図である。It is a figure which shows 4th Example of this invention. 本発明の第５実施例を示す図である。It is a figure which shows 5th Example of this invention. 本発明の医療用拡開器の装着説明図である。It is mounting | wearing explanatory drawing of the medical spreader of this invention.

符号の説明Explanation of symbols

１…板状体
２…超弾性線材
３…溶接部
４…板状体
５…巻込筒
６…引出開口
７…コの字状枠体
８…巻芯
９…ハンドル
１０…スリット
１１…切開創 DESCRIPTION OF SYMBOLS 1 ... Plate-shaped body 2 ... Super elastic wire 3 ... Welded part 4 ... Plate-shaped body 5 ... Winding cylinder 6 ... Draw-out opening 7 ... U-shaped frame body 8 ... Core core 9 ... Handle 10 ... Slit 11 ... Incision wound

Claims (6)

弾性を有する長方形の板状体を、始端と終端が摺動可能な状態で丸めて円筒状に成形したことを特徴とする医療用拡開器。 A medical spreader, wherein a rectangular plate-like body having elasticity is rounded in a state where a starting end and a terminal end are slidable and formed into a cylindrical shape. 前記板状体の一端部幅方向にコの字状の挿通片を設け、板状体の他端部をその中に挿通するとともに直角に折り曲げて係止縁を形成したことを特徴とする請求項１２記載の医療用拡開器。 A U-shaped insertion piece is provided in the width direction of one end portion of the plate-like body, and the other end portion of the plate-like body is inserted therein and bent at a right angle to form a locking edge. Item 13. A medical spreader according to Item 12. 多数本の超弾性線材を平行に並べ、隣接する超弾性線材を互いに接合することにより前記板状体を形成し、超弾性線材の長さ方向に丸めたものであることを特徴とする請求項１又は２記載の医療用拡開器。 A plurality of superelastic wires are arranged in parallel, and the plate-like body is formed by joining adjacent superelastic wires to each other and rounded in the length direction of the superelastic wire. The medical spreader according to 1 or 2. 少なくとも外周面を、柔軟で伸縮性を有する材料で覆ったことを特徴とする請求項３記載の医療用拡開器。 The medical spreader according to claim 3, wherein at least an outer peripheral surface is covered with a flexible and stretchable material. 細径で、長さ方向にスリット状の引出開口を有する巻込筒の中に、前記板状体を丸めて縮径した状態で収納し、前記引出開口から引き出した時、径が拡開するようにしたことを特徴とする請求項１，２，３又は４記載の医療用拡開器。 The plate-shaped body is stored in a rolled tube with a small diameter and having a slit-like drawer opening in the length direction in a state of being rounded and reduced in diameter, and the diameter expands when pulled out from the drawer opening. The medical spreader according to claim 1, 2, 3 or 4, wherein the medical spreader is configured as described above. コの字状枠体の上下の平行板に軸回転自在に支持され、上端にハンドルが連結され、長さ方向にスリットが設けられた巻芯に、前記板状体を巻き込んで円筒状に成形したことを特徴とする請求項１，２，３，４又は５記載の医療用拡開器。 The U-shaped frame is supported by the upper and lower parallel plates so that the shaft can rotate freely. A handle is connected to the upper end of the U-shaped frame. The medical spreader according to claim 1, 2, 3, 4 or 5.
JP2005273669A 2005-09-21 2005-09-21 Medical dilator Pending JP2007082674A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005273669A JP2007082674A (en) 2005-09-21 2005-09-21 Medical dilator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005273669A JP2007082674A (en) 2005-09-21 2005-09-21 Medical dilator

Publications (1)

Publication Number Publication Date
JP2007082674A true JP2007082674A (en) 2007-04-05

Family

ID=37970269

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005273669A Pending JP2007082674A (en) 2005-09-21 2005-09-21 Medical dilator

Country Status (1)

Country Link
JP (1) JP2007082674A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011519691A (en) * 2008-05-07 2011-07-14 ジンテス ゲゼルシャフト ミット ベシュレンクテル ハフツング Method and apparatus for lateral access to intervertebral disc space
CN104353177A (en) * 2014-11-10 2015-02-18 中国人民解放军第三军医大学第二附属医院 Medical operation sheath
JP2015154794A (en) * 2014-02-19 2015-08-27 日機装株式会社 Operative area securing device
JP2016137218A (en) * 2015-01-29 2016-08-04 独立行政法人国立病院機構 Retractor
KR20160109195A (en) * 2015-03-10 2016-09-21 주식회사 메드릭스 Variable diameter protector assembly for minimal invasive surgery
JP2017534395A (en) * 2014-11-13 2017-11-24 アプライド メディカル リソーシーズ コーポレイション Tissue retrieval system and method
WO2018021174A1 (en) 2016-07-25 2018-02-01 公立大学法人大阪市立大学 Retractor for small-incision endoscopic surgery
CN107753073A (en) * 2017-12-04 2018-03-06 黄河科技学院 The quantitative device for spreading of clinical operation wound
CN111789642A (en) * 2020-07-02 2020-10-20 泰升医疗有限公司 Retractor assembly and retractor
JP2022119783A (en) * 2014-04-23 2022-08-17 アプライド メディカル リソーシーズ コーポレイション Systems and methods for tissue removal

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011519691A (en) * 2008-05-07 2011-07-14 ジンテス ゲゼルシャフト ミット ベシュレンクテル ハフツング Method and apparatus for lateral access to intervertebral disc space
JP2015154794A (en) * 2014-02-19 2015-08-27 日機装株式会社 Operative area securing device
JP2022119783A (en) * 2014-04-23 2022-08-17 アプライド メディカル リソーシーズ コーポレイション Systems and methods for tissue removal
CN104353177A (en) * 2014-11-10 2015-02-18 中国人民解放军第三军医大学第二附属医院 Medical operation sheath
JP2017534395A (en) * 2014-11-13 2017-11-24 アプライド メディカル リソーシーズ コーポレイション Tissue retrieval system and method
US10335132B2 (en) 2015-01-29 2019-07-02 National Hospital Organization Retractor
JP2016137218A (en) * 2015-01-29 2016-08-04 独立行政法人国立病院機構 Retractor
WO2016121169A1 (en) * 2015-01-29 2016-08-04 独立行政法人国立病院機構 Retractor
KR20170134338A (en) 2015-01-29 2017-12-06 내셔널 호스피탈 오가니제이션 Dog breeder
CN107530071A (en) * 2015-01-29 2018-01-02 独立行政法人国立病院机构 Retractor
KR102315793B1 (en) * 2015-01-29 2021-10-20 내셔널 호스피탈 오가니제이션 opening season
KR20160109195A (en) * 2015-03-10 2016-09-21 주식회사 메드릭스 Variable diameter protector assembly for minimal invasive surgery
KR101662787B1 (en) 2015-03-10 2016-10-05 주식회사 메드릭스 Variable diameter protector assembly for minimal invasive surgery
JPWO2018021174A1 (en) * 2016-07-25 2018-11-15 公立大学法人大阪市立大学 Small incision arthroscopic retractor
KR20190021473A (en) 2016-07-25 2019-03-05 고우리쯔 다이가쿠 호오진 오사카 시리쯔 다이가쿠 Surgery for small incision underestimation
CN109475357A (en) * 2016-07-25 2019-03-15 公立大学法人大阪市立大学 Small notch endoscopic surgery retractor
US10765451B2 (en) 2016-07-25 2020-09-08 Osaka City University Retractor for small-incision endoscopic surgery
WO2018021174A1 (en) 2016-07-25 2018-02-01 公立大学法人大阪市立大学 Retractor for small-incision endoscopic surgery
CN107753073A (en) * 2017-12-04 2018-03-06 黄河科技学院 The quantitative device for spreading of clinical operation wound
CN107753073B (en) * 2017-12-04 2024-04-05 黄河科技学院 Quantitative opening device for clinical operation wound
CN111789642A (en) * 2020-07-02 2020-10-20 泰升医疗有限公司 Retractor assembly and retractor
CN111789642B (en) * 2020-07-02 2023-06-20 泰升医疗有限公司 Retractor assembly and retractor

Similar Documents

Publication Publication Date Title
JP2007082674A (en) Medical dilator
JP6027062B2 (en) Frame device
JP5674775B2 (en) Linear clamp for anastomosis
EP3195829A1 (en) Gastrointestinal achor
WO2018110510A1 (en) Microneedle patch
US20110172760A1 (en) Apparatus and method for tissue adhesion
EP1392178A1 (en) A retractor
JP2010523171A5 (en)
EP2077768B8 (en) Devices for treating obesity and gerd by intussuscepting a portion of stomach tissue
US9211395B2 (en) Expandable sheath
CA2620859A1 (en) Gastric retaining devices and methods
WO2009116159A1 (en) Catheter balloon assembly
JP2008302097A (en) Clip device for endoscope
EP1175867A3 (en) Defect occluder release assembly and method
JP2007044395A (en) Wound retractor
US20070161866A1 (en) Deep tissue blade for use with retractor systems
JP2017047230A (en) Microanchors for anchoring devices to body tissues
JP2007312911A (en) Correction tool for ingrown nail
JP3235602B2 (en) Biological compression device
EP4197490A1 (en) Prosthesis for repairing a hernia defect
JP2005324073A5 (en)
US20090318873A1 (en) Medical malecot with magnets
JP2006304819A (en) Retractor
WO2017155080A1 (en) Medicine supply device
EP2949274A1 (en) Heart treatment device