JP2006006817A - Intraocular lens insertion instrument - Google Patents

Intraocular lens insertion instrument Download PDF

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JP2006006817A
JP2006006817A JP2004191703A JP2004191703A JP2006006817A JP 2006006817 A JP2006006817 A JP 2006006817A JP 2004191703 A JP2004191703 A JP 2004191703A JP 2004191703 A JP2004191703 A JP 2004191703A JP 2006006817 A JP2006006817 A JP 2006006817A
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lens
portion
intraocular lens
insertion
tip
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Kenichi Kobayashi
Kenichi Niizaki
Kenichiro Ono
健一郎 大野
研一 小林
堅一 新崎
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Canon Star Kk
キヤノンスター株式会社
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Abstract

PROBLEM TO BE SOLVED: To prevent the breakage of an intraocular lens as the lens is caught between an inner wall face and a push-out shaft of an insertion instrument of the intraocular lens because of the displacement of the shaft in a process of moving the intraocular lens by the push-out shaft, and to reduce the kinetic frictional resistance when the lens is ejected.
SOLUTION: At least either a projection part 12b projecting from the distal end part 12a of the push-out shaft 12 or a distal end projection part 20 of a lens ejecting member 19 is disposed at a position close to the inner wall face of the insertion instrument when the intraocular lens advances, and the push-out shaft 12 and the lens ejecting member 19 are connected in such a way that they can associated with each other. The association of the push-out shaft 12 and the lens ejecting member 19 is released at a prescribed position in the process of moving the intraocular lens 10 by the push-out shaft 12, so that the damage to an optical part of the lens in inserting/moving the intraocular lens is prevented.
COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は眼内挿入用レンズの挿入器具に関し、更に詳しくは、挿入器具の先端部から眼内に挿入する際に生じるレンズと挿入器具との間の摩擦を小さくし、レンズ移動時においてレンズに損傷を与えないようにした眼内挿入用レンズの挿入器具に関する。 The present invention relates to the insertion instrument intraocular lens, more particularly, to reduce the friction between the distal end of the insertion tool and the lens and insertion device that occurs upon insertion into the eye, the lens during lens movement and avoid damaging for an insertion instrument intraocular lens.

眼内レンズの使用は白内障の治療方法として、ほぼ確立されてきている。 The use of intraocular lenses as a treatment method for cataracts, have been almost established. 即ち、白く濁った水晶体を眼内から取り除き、代わりに人工の眼内レンズ「(intraocular Lens)以下IOLと称す」を挿入するというものである。 That removes the white cloudy lens from the eye, is that inserting an artificial intraocular lens "referred to as (intraocular Lens) following IOL" instead. この治療方法は日帰り手術を行えるほど進歩している。 This method of treatment has advanced enough to perform a day surgery.

当初のIOLはポリメチルメタクリレートという硬質のプラスチックなどの硬い材質で形成されたものであるため、眼内への挿入に際しては6mm以上切開創を設けなければならず、切開創が大きくなるため、術後の副作用として乱視などの不具合が起きてしまうなどの問題があった。 For initial IOL is one formed of a hard material such as hard plastic that polymethyl methacrylate, it is necessary to provide the incision or 6mm. Before insertion into the eye, since the incision is large, the operator after problems such as astigmatism as a side effect there is a problem such as accidentally waking.

近年のこの問題を解決しようと、例えば、特許文献1に示されるような折り畳み可能な、弾性を有する柔軟な材質により形成された眼内挿入用レンズが各種開発されて実用化されている。 When trying to solve recent problem, for example, collapsible as described in Patent Document 1, the intraocular lens has been put into practical use are various developed formed by a soft material having elasticity.
この折り畳み可能なレンズは、眼内に挿入する際に折り畳んだり、丸めるなどして、約3mm程度に外形形状を小さくした状態で、切開創から眼内に挿入し、元の形状に戻るような素材を使用している。 The foldable lenses, folded upon insertion into the eye, and the like rounded, in a state of reduced outer shape to about 3 mm, was inserted into the eye from the incision, such as return to its original shape We are using the material.
従って、手術においては前記切開創が小さくてもよいため術後において、乱視等の後遺症の発生が極めて少なくなっている。 Therefore, the post-operative since it is smaller the incision in surgery, the occurrence of sequelae of astigmatism or the like is extremely small.

前記IOLを眼内に挿入する方法としては、眼科又は外科の医師の手術により様々で、ピンセットで直接IOLをつかみ、小さくして眼内へ挿入する方法、また、挿入器具に形成した開閉機構を有する部材にIOLを装填してレンズを挿入器具内で小さく丸め、眼内に挿入する方法、さらには予め前記IOLが設置されている挿入器具のIOL保持部より押出軸によりIOLを挿入器具本体の先端部より押出して眼内へ挿入する方法などが挙げられる(特許文献2)。 As a method of inserting the IOL in the eye, a variety surgically ophthalmic or surgeons, grasp the direct IOL with forceps, a method to insert into the eye by small, also the opening and closing mechanism which is formed in the insertion instrument with loading the IOL rounding small lens at insertion instrument in member, a method of inserting into the eye, more insertion instrument body the IOL in advance by the extrusion axis than the IOL holding portion of the insertion tool IOL is installed and a method of inserting extruded from the front end portion Te into the eye and the like (Patent Document 2).
特開昭58−146346号公報 JP-A-58-146346 JP 特開平05―103808号公報 JP 05-103808 discloses

挿入器具を使って眼内にIOLを挿入する上記方法は、何れも、IOLがエラスティックな材料で、先細形状の挿入筒の内壁面とIOLとの間の動摩擦抵抗が高く、押出軸の先端によって挿入器具の挿入筒始端部へとIOLを移動させる時に、挿入器具のレンズ設置部の内壁面とIOLとの間に大きな動摩擦抵抗が生じてしまう。 The method using the insertion tool to insert an IOL into the eye, both, IOL is in elastic material, a high dynamic friction resistance between the inner wall surface and the IOL insertion barrel tapered tip of the extrusion axis by when moving the IOL into the insertion tube beginning of the insertion instrument, a large dynamic friction resistance is generated between the inner wall and the IOL lens installation portion of the insertion instrument. 従って、施術者は、レンズの移動に際し力を入れないとIOLが挿入器具先端部から出てきにくい状況となり、力を入れるとIOLが前記先端部から急に飛び出してしまうことも予測される。 Thus, practitioner, unless focus upon movement of the lens IOL is a situation difficult emerging from the insertion instrument tip, is also expected to put a force IOL will jump out suddenly from the tip. また、IOLが挿入器具のレンズ設置部の内腔内壁面と擦りあうため、IOLに傷が付いてしまうなどの問題があった。 Further, since the IOL is rubbing the lumen wall surface of the lens disposing part of the insertion tool, there is a problem such as accidentally scratched IOL.

本発明は、前記眼内挿入用レンズの挿入器具において、眼内挿入用レンズを押し出すための押出軸の先端部近傍を、該押出軸の中間部形状より幅寸法が大きく、かつ挿入器具の内壁面の内径寸法より小さく形成すると共に、該押出軸の先端部に一部を突出させた突出部を形成することで、眼内挿入用レンズをスムーズに移動させるようにした眼内挿入用レンズの挿入器具を提供することを目的とする。 The present invention, in the insertion tool of the intraocular lens, the vicinity of the front end portion of the extrusion axis for extruding the intraocular lens, than the width dimension larger middle section shape of the pressing Dejiku, and of the insertion device and forming smaller than the inner diameter of the wall, by forming the projecting portion is protruded part at the tip portion of the pressing Dejiku, of the the intraocular lens to move the intraocular lens smoothly and to provide an insertion instrument.

また、本発明は、眼内挿入用レンズの挿入器具において、眼内挿入用レンズを押し出すための押出軸の先端部近傍に、先端を突出させた少なくとも一部にレンズ光学部を内腔に浮かせた状態で保持する先端突出部を設けたレンズ送出部材を装着させることで、押出軸の進入移動時に生じるレンズ光学部への損傷を防止するようにした眼内挿入用レンズの挿入器具を提供することを目的とする。 The present invention also float in the insertion instrument intraocular lens, the vicinity of the distal end portion of the extrusion axis for extruding the intraocular lens, the lens optical portion into the lumen in at least a part is protruded tip the lens delivery member provided with end projecting portion for holding at a state that is mounted, provide an insertion instrument to the intraocular lens to prevent damage to the lens optical portion occurring upon entry movement of the extrusion axis and an object thereof.

さらに、本発明は前記押出軸の先端部から突出した突出部及び前記レンズ送出部材の先端突出部の少なくとも一方が、前記レンズの進入移動時における挿入器具の内壁面に近接する位置となるように配置した構成とすることで、レンズ光学部が挿入器具内壁面に接触することを極力少なくして押し出すようにすることで、動摩擦抵抗を小さくして、レンズを挿入器具の挿入筒先端からスムーズに押し出せるようにした眼内挿入用レンズの挿入器具を提供することを目的とする。 Furthermore, the present invention is such that at least one of the end projecting portion of the projecting portion and the lens delivery member protruding from the tip of the extrusion axis, a position close to the inner wall surface of the insertion tool at the time of entering the movement of the lens by the arrangement and configuration, that lens optic portion is to extrude and minimize that contact with the insertion instrument inner wall surface, the kinetic friction resistance is small, smooth the lens from the insertion tube distal end of the insertion instrument and to provide an insertion instrument extrude way the intraocular lens.

さらにまた、本発明は、前記眼内挿入用レンズ挿入器具の押出軸先端部に装着されるレンズ送出部材は、押出軸の先端部外形寸法よりも幅が広く、かつ前記挿入器具のレンズ保持部の内壁面の内径より幅が小さく形成されると共に、前記レンズ送出部材の先端部には少なくとも一部が突出した先端突出部を設けた構成とすることで、前記押出軸の進入移動時においてIOLのレンズ光学部を内腔に浮かせた状態で保持して眼内挿入レンズのレンズ光学部を挿入器具のレンズ保持部の内壁面にほとんど接触させることなく前記眼内挿入レンズの進入移動を可能とし、レンズ光学部に与える損傷を防止すると共に、前記押出軸の先端部の軸ぶれを防止するようにした眼内挿入用レンズの挿入器具を提供することを目的とする。 Furthermore, the present invention is, lens delivery member mounted on the extrusion axis a distal end portion of the intraocular lens insertion device is wider than the tip portion outside dimension of the extrusion axis, and the lens holding portion of the insertion instrument IOL with width than the inner diameter of the inner wall surface is smaller, the a tip portion of the lens delivery member by a structure in which at least a part projecting tip protrusion at the time of entering the movement of the extrusion axis permit entry movement of the intraocular lens and without that the optical lens portion is held in a state of floating in the lumen is almost in contact with the inner wall surface of the lens holding portion of the insertion instrument the lens optical portion of the intraocular lens , thereby preventing damage to the lens optical portion, and an object thereof is to provide an insertion instrument intraocular lens so as to prevent the shaft wobble of the tip portion of the extrusion axis.

本発明は、上記課題を解決するために次のような手段を採用するものである。 The present invention employs the following means to solve the above problems. 即ち、請求項1の発明は、眼内挿入用レンズの挿入器具において、眼内挿入用レンズの挿入器具において、眼内挿入用レンズを押し出すための押出軸の先端部近傍を、該押出軸の中間部より幅寸法が大きく、かつ挿入器具の内壁面の内径寸法より小さく形成すると共に、該押出軸の先端部に少なくとも一部を突出させた突出部を形成したことを特徴とする。 That is, a first aspect of the invention, the insertion tool intraocular lens in the insertion device of intraocular lenses, the vicinity of the front end portion of the extrusion axis for extruding the intraocular lens, the pressing Dejiku width dimension larger than intermediate portion, and thereby smaller than the inner diameter of the inner wall surface of the insertion device, and wherein the forming the protruding portion that is protruded at least a portion on the tip portion of the pressing Dejiku.

請求項2の発明は、眼内挿入用レンズの挿入器具において、眼内挿入用レンズを押し出すための押出軸の先端部近傍に、先端を突出させた少なくとも一部にレンズ光学部を内腔に浮かせた状態で保持する先端突出部を設けたレンズ送出部材を装着させたことを特徴とする。 The invention of claim 2 is the insertion tool intraocular lens, the vicinity of the distal end portion of the extrusion axis for extruding the intraocular lens, the lens optical portion into the lumen in at least a portion which is protruded tip characterized in that the lens delivery member provided with end projecting portion was mounted to hold in a state of floating has.

請求項3の発明は、請求項1又は請求項2に記載の眼内挿入用レンズの挿入器具において、前記押出軸の先端部から突出した突出部及び前記レンズ送出部材の先端突出部の少なくとも一方が、前記レンズの進入移動時における挿入器具の内壁面に近接する位置となるように配置したことを特徴とする。 A third aspect of the present invention, the insertion tool intraocular lens according to claim 1 or claim 2, at least one of the end projecting portion of the projecting portion and the lens delivery member protruding from the tip of the extrusion axis but it characterized by being arranged such that the position close to the inner wall surface of the insertion tool at the time of entering the movement of the lens.

請求項4の発明は、請求項2に記載の眼内挿入用レンズの挿入器具において、前記レンズ送出部材の先端突出部は、先端の少なくとも一部が突出した形状を有し、かつ前記眼内挿入用レンズ挿入器具の押出軸の先端部の外形形状よりも幅寸法が大きく、前記挿入器具の内壁面の内径寸法より小さくしたことを特徴とする。 The invention according to claim 4, in the insertion instrument intraocular lens according to claim 2, wherein the end projecting portion of the lens delivery member has at least partially protruding shape of the tip, and in the eye larger width than the outer shape of the tip portion of the extrusion axis of the insertion lens insertion, characterized by being smaller than the inner diameter of the inner wall surface of the insertion device.

本発明によれば、眼内挿入用レンズを押し出すための押出軸の先端部近傍を、該押出軸の中間部より幅寸法が大きく、かつ挿入器具内壁面の径よりも幅寸法を小さく形成すると共に、該押出軸の先端部に一部を突出させた突出部を形成することで、挿入器具使用時におけるIOL等の眼内挿入用レンズの進入移動時には、前記IOLと挿入器具内壁面との間に前記突出部が挿入位置して、眼内挿入用レンズをスムーズに進入移動させることができる。 According to the present invention, the vicinity of the front end portion of the extrusion axis for extruding the intraocular lens, the width dimension is greater than the intermediate portion of the pressing Dejiku, and reduced to form the width dimension than the diameter of the insertion tool inner wall surface together, by forming the projecting portion is protruded part at the tip portion of the pressing Dejiku, when entering movement of the intraocular lens of the IOL, such as during insertion device used, and the IOL and the insertion tool inner wall the protrusion is inserted located between, it may be advanced moves intraocular lens smoothly.

また、本発明においては、眼内挿入用レンズを押し出すための押出軸先端部付近に、先端を突出させた少なくとも一部にレンズ光学部を内腔に浮かせた状態で保持する先端突出部を設けたレンズ送出部材を装着させることで、押出軸の進入移動時に生じるレンズ光学部への損傷を防止することができる。 In the present invention, in the vicinity of the extrusion axis tip for pushing the intraocular lens, providing a tip protrusion which held in a state of floating the lens optic portion in the lumen in at least a portion which is protruded tip lens delivery member to be to mounting, it is possible to prevent damage to the lens optical portion occurring upon entry movement of the extrusion axis.

さらに、本発明は前記押出軸の先端部から突出した突出部及び前記レンズ送出部材の先端突出部の少なくとも一方が、前記レンズの進入移動時における挿入器具内壁面に近接する位置となるように配置した構成とすることで、IOL保持部においてはレンズ光学部を挿入器具内腔の内壁面に接触させることなく押し出すようにすることで、動摩擦抵抗を小さくして、レンズを挿入器具の先端からスムーズに押し出すことができる。 Furthermore, the present invention is arranged so that at least one of the end projecting portion of the projecting portion and the lens delivery member protruding from the tip of the extrusion axis, a position close to the insertion tool inner wall during the entering movement of the lens with the configuration, by the pushing out without contacting the lens optical portion on the inner wall surface of the insertion device lumen in IOL holder, smooth kinetic friction resistance is small, the lens from the distal end of the insertion instrument it can be extruded.

さらにまた、本発明は、前記眼内挿入用レンズ挿入器具の押出軸先端部に装着されるレンズ送出部材は、押出軸の先端部外形寸法よりも幅が広く、かつ前記挿入器具内壁面の内径寸法より小さく形成されると共に、前記レンズ送出部材の先端部には一部が突出した先端突出部を設けた構成とすることで、前記押出軸の進入移動時において生じていた押出軸の先端部の揺動などによる軸ぶれを防止し、眼内挿入レンズのレンズ光学部を挿入器具内壁面にほとんど接触させることなく前記眼内挿入レンズの進入移動を可能とし、レンズ光学部に与える損傷を防止することができる。 Furthermore, the present invention is, lens delivery member mounted on the extrusion axis a distal end portion of the intraocular lens insertion device is wider than the tip portion outside dimension of the extrusion axis, and the inner diameter of the insertion instrument in wall together are smaller than the size, the lens delivery the distal end portion of the member by a structure in which a tip protrusion portion is protruded, the tip portion of the extrusion axis which occurs at the time of entering the movement of the extrusion axis preventing shaft wobble due to swinging, it permits entry movement of the intraocular lens without hardly contacting the lens optical portion of the intraocular lens insertion tool inner wall surface and then, preventing damage to the lens optical portion can do.

本発明における最良の実施形態は、IOL等の眼内挿入用レンズを挿入器具先端から押出すための押出軸は、中実状の棒状の形態で、その先端部の外形形状を幅広にし、かつ先端には突出した突出部を設けてあり、さらに押出軸の先端部には、別部材により形成され、先端に一部を突出させた先端突出部を設けたレンズ送出部材を設け、このレンズ送出部材の先端突出部と前記押出軸の突出部の両者によって、前記IOLを挿入器具の内腔内壁面にほとんど接触にさせることなく挿入器具先端近傍まで押し出すと共に、先細に形成したテーパーの付いた挿入器具の先端部となる挿入筒には、前記押出軸の先端突出部のみが進入移動して、挿入筒内に充填された潤滑剤を介して前記IOLをスムーズに且つ傷をつけずに挿入器具先端から押出す Best mode of the present invention are extrusion axis for extruding the intraocular lens such as IOL from the insertion instrument tip is in the form of a stick of medium circumstances, the outer shape of the tip portion wider and the tip is provided with a protrusion protruding to the further to the distal end of the extrusion axis, it is formed by a separate member, provided lens delivery member provided with end projecting portion which is protruded part at the tip, the lens delivery member by both the projecting portions of the extrusion axis and the end projecting portion of the IOL with push up little insertion instrument tip proximity without contact with the inner lumen wall of the insertion device, the insertion tapered formed tapered instrument the insertion tube of the distal end portion of the insertion instrument tip without the said only the tip protrusion of the pushing shaft enters moved and wound smoothly the IOL through the lubricant filled in the insertion tube extruded from とが可能となる。 Theft is possible.

また、挿入器具の押出軸の先端部の外形形状を幅広にし、先端部に突出部を設けた場合、この先端部の幅寸法は、挿入器具内壁面の内径より若干小さくすることが、押出軸の揺動などによる軸ぶれを防止できて好ましく、さらには、上記構成とすることで、前記突出部は押出軸進入移動時に、前記IOLのレンズ光学部の外周中心付近と挿入器具内壁面との間に挿入されて、前記IOLを掬い上げる様に作用し、IOLを挿入器具の先端部へと進入移動させることができる。 Further, the outer shape of the tip portion of the extrusion axis of the insertion instrument wide, when provided with a protrusion at the tip, the width of the tip, be slightly smaller than the inner diameter of the insertion device in the wall, the extrusion axis such as preferably can be prevented axial vibration by rocking, further, with the above configuration, the protruding portion during extrusion axis entering movement, the outer periphery near the center with insertion instrument inner wall surface of the lens optical portion of the IOL it is inserted between, and acts as scooping the IOL, may be advanced moved to the distal end portion of the insertion instrument IOL.

更に、挿入器具の押出軸とは別個に送出部材を押出軸の先端部に設ける場合も、前記送出部材の外形幅寸法が挿入器具内壁面の径よりも若干小さくし、且つ押出軸の先端部よりも幅広形状とし、前記押出軸と互いに嵌合するように長手方向に嵌合溝が略中央に設けられている。 Furthermore, even if the extrusion axis of the insertion device provided on the tip portion of the extrusion axis separately delivery member, said to outer width dimension of the delivery member is slightly smaller than the diameter of the insertion device in the wall, and the extrusion axis tip a wider shape than the fitting groove in the longitudinal direction so as to fit together with the extrusion axis is provided approximately at the center.

また、前記送出部材の先端の一部に突出部を有し、該突出部をIOLと挿入器具の内腔内壁面との間に挿入させることにより、挿入器具の内腔内壁面にIOLのレンズ光学部が接触して摩擦による損傷を防止することができる。 Also has a projecting portion in a part of the tip of the delivery member, by inserting the projecting portion between the inner lumen wall of IOL and the insertion tool, IOL lens in the lumen wall surface of the insertion tool it can be optical unit to prevent damage due to friction in contact.

前記押出軸の突出部及びレンズ送出部材の材質は、特に制限はされないが、ある程度の強度と柔軟性があることがIOLを押し出す際に物理的に好適で、ポリエチレン樹脂、ポリプロピレン樹脂等のオレフィン系樹脂、スチレン系樹脂、ポリカーボネート樹脂、その他熱可塑性樹脂が好適に使用可能である。 The material of the protrusions and lens delivery member of the extrusion axis is not particularly limited, physically suitable in extruding the IOL that there is certain degree of strength and flexibility, olefin such as polyethylene resin, polypropylene resin resin, styrene resin, polycarbonate resin, other thermoplastic resins may be suitably used.

前記レンズ送出部材の突出部には先細の肉薄に形成したテーパーを設けることも可能で、このようなテーパーを設けることにより、よりスムーズにIOLを掬い上げることができる。 It is also possible to provide a taper formed in the thin tapered in the protruding portion of the lens delivery member, by providing such a tapered, it is possible to scoop the IOL more smoothly. また前記先端突出部の厚さは特に限定されないが、IOLを掬い上げる目的としては、少なくとも先端突出部の先端側の厚みは500μm以上2.0mm 以下であることが好ましい。 Although not particularly limited and the thickness of the end projecting portion, as the purpose of scooping the IOL, it is preferred that the distal end side of the thickness of at least the end projecting portion is 500μm or more 2.0mm or less. さらに、前記突出部の幅寸法は挿入器具の内腔内壁面の径より小さく、IOLを掬い上げる強度が必要で、2.0mm 以上であることが良い。 Furthermore, the width of the protrusion is smaller than the diameter of the inner lumen wall of the insertion instrument requires strength scooping the IOL, it is better than 2.0mm or more. また、前記突出部の長さも、長すぎても、短すぎてもIOLを支えることができないので、好ましくは、1〜5mm程度とすることが良い。 Also, the length of the protrusion, it is too long, it is not possible to support the IOL is too short, preferably, may be about 1 to 5 mm. また、前記先端部及びレンズ送出部材の先端突出部の厚みも特に制限はないが、挿入器具内壁面の内径よりも若干小さめにすることが好ましい。 There is no particular restriction also the thickness of the end projecting portion of the tip and lens delivery member, it is preferable to slightly smaller than the inner diameter of the insertion device in the wall.

更に、本発明において、挿入器具にIOLを設置した状態においては、IOLがレンズ保持部のレンズ設置部の軸方向の内腔面に設けた溝に嵌合されていても良く、或いは、IOLが設置部に設置されたのみの状態でも良く、IOLを押出していく段階で、IOLのレンズ光学部が挿入器具の内腔内壁面にできるだけ接触しないようにするために、レンズ送出部材の先端突出部がIOLのレンズ光学部の平面中心部付近まで伸びた位置になるように形成することが好ましい。 Further, in the present invention, in installed state the IOL in the insertion tool may also be fitted to IOL is provided in the axial direction of the luminal surface of the lens setting of the lens holder groove, or, the IOL may be in a state of only installed in the installing part, at the stage goes extruded IOL, in order to lens optical portion of the IOL is not possible contact with the lumen wall surface of the insertion instrument, end projecting portion of the lens delivery member There is preferably formed so as to position that extends to the vicinity of the plane center of the lens optical portion of the IOL.

本発明においてIOLの素材は通常使われているものであれば、全て利用可能で、シリコーンエラストマー、アクリル酸系樹脂、その他透明性を有するものであれば特に限定されず、例えばポリエチレン、ポリプロピレン、エチレン−酢酸ビニル共重合体等のオレフィン系樹脂、ポリカーボネート等の熱可塑性樹脂、オレフィン系熱可塑性エラストマー、スチレン系熱可塑性エラストマー、ウレタン系熱可塑性エラストマー等の熱可塑性エラストマー、或いは天然ゴムの他に、エチレン−プロピレンゴム、アクリロニトリル−ブタジエンゴム等の合成ゴムも使用可能である。 As long as the IOL material that is commonly used in the present invention, all available, silicone elastomer is not particularly limited as long as it has an acrylic acid resin, other transparent, such as polyethylene, polypropylene, ethylene - olefin resins such as vinyl acetate copolymer, thermoplastic resins such as polycarbonate, olefin-based thermoplastic elastomer, a styrene based thermoplastic elastomer, a thermoplastic elastomer such as urethane-based thermoplastic elastomer, or in addition to natural rubber, ethylene - propylene rubber, acrylonitrile - synthetic rubber such as butadiene rubber can be used.

前記IOLはレンズ光学部と支持部とで形成される。 The IOL is formed between the support portion lens optic. IOLはレンズ光学部と支持部とが一体化されている1ピースタイプのものと、レンズ光学部と支持部とが別の材料で構成される3ピースタイプのもの(図2参照)があるが、その他何れの形態でも本発明において使用可能である。 IOL as the one-piece type and a supporting portion lens optical portion are integrated, as a the support portion lens optical portion of the 3-piece type formed of a different material, but it is (see FIG. 2) It can be used in other the invention in any form.

本発明において、眼内挿入用レンズの挿入器具は、従来から使用されている挿入器具全てに対応でき、IOLが装着されたカートリッジを挿入器具に取り付けるタイプのもの、予めIOLが挿入器具に取り付けられているタイプのもの、手術時にIOLを挿入器具に取り付けるタイプのもの等、何れのタイプの挿入器具においても使用可能である。 In the present invention, the insertion instrument intraocular lens can accommodate insertion instrument all has been conventionally used, of the type for mounting a cartridge IOL is attached to the insertion device is mounted in advance the IOL insertion device and types are those, such as those of the type for mounting an IOL insertion device at the time of surgery, it can also be used in any type of insertion tool.

次に、本発明に係る眼内挿入用レンズの挿入器具の第1実施例について図面を参照して説明する。 Next, a first embodiment of the insertion device intraocular lens according to the present invention will be described with reference to the drawings.
図1は、予めIOLが挿入器具に取り付けられているタイプの眼内挿入用レンズの挿入器具の全体平面図で、ほぼ筒状の挿入器具本体11と、この挿入器具本体11に嵌めた軸方向に移動する押出軸12と、挿入器具本体11の末端にネジ嵌合されるネジ筒13が設けられた押出機構14と、IOL10を小さく変形させるためのテーパー部15を有するレンズ設置部16の先端側に挿入筒17を突出させた包持部材18とを備えている。 1, previously IOL is a whole plan view of the insertion tool intraocular lens of the type attached to the insertion device, a substantially tubular insertion device body 11, axially fitted in the insertion device body 11 the tip of the extrusion axis 12 to move the insertion instrument lens disposing part 16 has a pushing mechanism 14 for screw cylinder 13 is provided which is fitted a screw at the end of the main body 11, a tapered portion 15 for small deformed IOL10 to and a holder-member 18 which is projected the insertion tube 17 to the side.
前記押出軸12の先端部12aは、押出軸12の長手方向の中間部形状より幅広に形成され、先端ほぼ中央部には突出部12bが形成されている。 Tip 12a of the extrusion axis 12 is formed wider than the longitudinal intermediate portion shape of the extrusion axis 12, protruding portion 12b is formed at the distal end substantially central portion.

この押出軸12の材質は特に制限はされないが、IOL10との接触性などを考慮して、軸心に対して横方向にある程度の可撓性を有するプラスチック素材であることが好ましい。 But this material of the extrusion axis 12 is particularly limited, in consideration of contact with the IOL 10, is preferably a plastic material having a certain degree of flexibility in a direction transverse to the axis. 例えば、ポリプロピレン、ポリエチレンなどのオレフィン系樹脂、ポリスチレン、ポリ塩化ビニル系樹脂など汎用プラスチックが使用可能である。 For example, polypropylene, olefin resin such as polyethylene, polystyrene, general purpose plastics such as polyvinyl chloride resin can be used.

19は、前記押出軸12の先端部12aに装着されるレンズ送出部材で、前記押出軸12の先端部12aの外形寸法よりも幅が広く、かつ前記挿入器具のレンズ設置部17の内壁面の内径より幅寸法が小さく形成されると共に、前記レンズ送出部材19の先端部19aには一部が突出した突出部20が設けられている。 19 is a lens delivery member attached to the distal end portion 12a of the extrusion axis 12, wider than the outer dimension of the distal end portion 12a of the extrusion axis 12, and the inner wall surface of the lens disposing part 17 of the insertion instrument with a width dimension than the inner diameter is smaller, the projecting portion 20 is provided partially in the distal end portion 19a of the lens delivery member 19 is projected. また、レンズ送出部材19の長手方向中央部には、前記押出軸12の先端部分が弾性嵌合する嵌合溝21が設けられている。 Further, in the longitudinal center of the lens delivery member 19, fitting groove 21 is provided with the tip portion of the extrusion axis 12 is elastically fitted.

前記レンズ送出部材19は、前記押出軸12の進入移動時において生じる押出軸12の先端部12aの軸ぶれを防止すると共に、前記押出軸12と所定位置即ちテーパー部15の始端部までレンズ光学部を内腔中央に掬い上げ保持した状態で連動できる形状になっている。 The lens delivery member 19, the while preventing shaft wobble of the tip portion 12a of the extrusion axis 12 occurring at the time of entering the movement of the extrusion axis 12, the extrusion axis 12 and the predetermined position or the lens optic to beginning of the tapered portion 15 has a shape that can be interlocked in a state was held scooped into bore center.

前記挿入器具本体11の先端側と包持部材18の末端側には、図示しないが、互いに係合する凹凸形状が夫々設けられ、前記包持部材18が装着される。 Wherein the distal tip end and embracing member 18 of the insertion tool body 11, although not shown, the uneven shape to be engaged with each other respectively provided, said embracing member 18 is attached. また、前記押出軸12はネジ筒13と回動可能に連結されるが、挿入器具本体11に対しては回動が拘束されるように構成されている。 Further, the extrusion axis 12 is pivotally connected at the screw cylinder 13, is rotated with respect to the insertion device body 11 is configured to be constrained.

図2は、前記包持部材18のレンズ設置部16に進入移動した前記押出軸12と連動可能な形状としたレンズ送出部材19を示す拡大図で、包持部材18のレンズ設置部16に設置されたIOL10に押出軸12と連動するレンズ送出部材19が接触し、押出軸12を移動させてIOL10を先細のテーパー部15を介して挿入筒17の先端部に押し出す前の状態を示す図である。 Figure 2 is established, an enlarged view showing a lens delivery member 19, wherein the extrusion axis 12 enables interlocking shape having entered moves in the lens installation portion 16 of the embracing member 18, the lens disposing part 16 of the holder-member 18 been the lens delivery member 19 in conjunction with the extrusion axis 12 in contact with the IOL 10, a diagram showing a state before pushing the distal end of the insertion tube 17 through the tapered tapered portion 15 of IOL 10 by moving the extrusion axis 12 is there.

一般的には、押出軸12を移動させる直前のこの状態において、レンズ設置部16、テーパー部15、および挿入筒17の内腔を通してIOL10を眼内に移動させるための潤滑剤として使用される物質を、挿入筒先端部17の開口部やその他適宜配設された注入口を利用して、必要十分量注入することが望ましい。 Materials generally, in this state immediately before moving the extrusion axis 12, which is used lens disposing part 16, a tapered portion 15, and IOL10 through the lumen of the insertion tube 17 as a lubricant for moving the eye and by utilizing the opening or other suitably disposed the inlet of the insertion tube tip 17, it is desirable to inject a necessary and sufficient amount.

図3は、前記押出軸12と共に連動するレンズ送出部材19の配設状態を示し、押出軸12とレンズ送出部材19が互いに連結された状態を示す平面図で、レンズ送出部材19に形成した凸部22に、押出軸12に形成した凹部23を弾性嵌合させることで、両者を互いに固定している。 Figure 3 shows an arrangement state of the lens delivery member 19 interlocked with the extrusion axis 12, a plan view showing a state in which the extrusion axis 12 and the lens delivery member 19 are connected to each other, a convex formed on the lens delivery member 19 the part 22, a recess 23 formed in the extrusion axis 12 by causing the elastic fit, securing them together. なお、前記押出軸12とレンズ送出部材は弾性嵌合された状態で連結されるので、前記凹凸部22,23を省略することも可能である。 Incidentally, the extrusion axis 12 and the lens delivery member because they are connected by elastic fitting state, it is also possible to omit the uneven portions 22 and 23.

前記挿入工程中の連動は、レンズ送出部材19の先端部19aが包持部材18の内壁面に連設さられたテーパー部15の始端部や突起状の形状に到達した位置でレンズ送出部材19は停止し、押出軸12のみがそのままIOLを押し出しながらテーパー部15を介して挿入筒17に進入移動を継続する構成となっている。 The insertion interlock in the process, the lens delivery member 19 of the distal end portion 19a is lens delivery member 19 at a position reached starting end and protruding shape of the tapered portion 15 which is formed continuously on the inner wall surface of the embracing member 18 has a structure to continue entering movement in the insertion tube 17 through the tapered section 15 while extruding the stop, only the extrusion axis 12 as IOL.

尚、前記凸部22、凹部23は、押出軸12とレンズ送出部材19が連動するために十分な固定強度が得られ、且つ、レンズ送出部材19の先端部19aが包持部材18の内壁面に設けられたテーパー部15や突起状の形状に到達した位置で容易に両者の連動が解除される様な弾性体や柔軟性を有する素材で構成することが好ましい。 Incidentally, the convex portion 22, the recess 23, sufficient fixing strength can not be obtained in order to interlock the extrusion axis 12 and the lens delivery member 19 and the inner wall surface of the tip portion 19a of the lens delivery member 19 embracing member 18 it is preferred that the readily both interlocked at the position reaching the tapered portion 15 and protruding shape provided constitutes a material having an elastic body and flexibility such as is released.

前記押出軸12の突出部12bの先端には肉薄となる先細のテーパーが設けられていても良い。 The taper of the tapered becomes thin at the tip of the projecting portion 12b of the extrusion axis 12 may be provided. テーパーを設けることによって、IOL10を挿入器具内壁面と離しやすくなる。 By providing a taper, easily separated and insertion instrument inner wall surface of the IOL 10. この突出部12bの厚み、長さ、幅などは適宜決定されるが、IOL10の形状、大きさを考慮すると、厚さ0.5mm〜1.5mm程度で、長さは、3〜10mm程度で、幅1〜3mm程度が好ましい。 The thickness of the protruding portion 12b, a length, although such a width are appropriately determined, the shape of the IOL 10, considering the size, in a thickness of about 0.5 mm to 1.5 mm, a length, in order 3~10mm , is preferably about width 1~3mm.

上記実施例1においては、予めIOL10が挿入器具のレンズ設置部16に取り付けられているタイプの眼内挿入用レンズの挿入器具について説明したが、以下に手術時にIOL10を挿入器具のレンズ設置部に取り付けるタイプの眼内挿入用レンズの挿入器具について説明する。 In the above embodiment 1, the pre-IOL10 has been described insertion tool intraocular lens of the type attached to the lens installation portion 16 of the insertion device, the lens disposing part of the insertion device the IOL10 during surgery below the insertion device type intraocular lens mounting will be described.

図4は、本発明に係る第2実施例を示す眼内挿入用レンズの挿入器具を示す斜視図である。 Figure 4 is a perspective view showing the insertion instrument intraocular lens showing a second embodiment according to the present invention.
この第2実施例にあっては、眼内挿入用レンズを保管するレンズ保持部30と眼内挿入用レンズ10を患者の眼内に挿入するための挿入器具本体部31とにより構成されている。 In the second embodiment is constituted by the lens holding portion 30 and the intraocular lens 10 stores the intraocular lens and the insertion instrument body portion 31 for insertion into a patient's eye .

前記レンズ保持部30は、レンズ保持部トップ32およびレンズ保持部ボトム33からなり、両部材により眼内挿入用レンズ10を保管する空間を形成するとともに、前記挿入器具本体部31としての機構の一部である左右方向に貫通された貫通穴34が形成されている。 The lens holding unit 30 is composed of a lens holding unit top 32 and the lens holding portion bottom 33, to form a store space intraocular lens 10 by both members, one mechanism as the insertion tool body portion 31 the through holes 34 passing through in the transverse direction are parts are formed. 前記挿入器具本体部31の先端部には装着部35を介して挿入筒36が形成され、その内腔を通して眼内挿入用レンズ10を眼内に挿入するようになっている。 The insert the distal end portion of the apparatus body 31 is formed insertion tube 36 through the mounting portion 35, which is the intraocular lens 10 through the lumen to insert into the eye.
また、前記本体部31の基端部31aには、眼内挿入用レンズ10を眼内に押出すための押出軸37の基端部が結合された押出機構38が形成されている。 Further, the base end portion 31a of the main body portion 31, pushing mechanism 38 having a base end portion is coupled extrusion axis 37 for extruding the intraocular lens 10 into the eye is formed.

前記レンズ保持部30は、前記本体部31の装着部35に一定間隔で対時して設けられた垂直壁面39,40と隙間なく装着可能な寸法に形成されており、前記レンズ保持部30を装着部35に装着した状態では、押出軸37の軸方向に移動することが規制されている。 The lens holding portion 30 is formed in the vertical wall surface 39, 40 without a gap mountable dimensions provided in time-to at regular intervals on the mounting portion 35 of the main body portion 31, the lens holding portion 30 in the state mounted on the mounting portion 35, to move in the axial direction of the extrusion axis 37 is restricted. さらに、前記レンズ保持部30のレンズ保持部トップ32は前記押出軸37軸方向に対し略垂直方向に突設した突起部41と、この突起部41が嵌合するように前記装着部35の水平面に押出軸37の軸方向に対し略垂直方向に形成された係合穴42とにより、両者が位置決め固定されるようになっており、その組付け後に押出軸37を押出機構38により先端側に移動させて、前記レンズ保持部30内に設置したIOL10を挿入筒部32の先端部より眼内に押出すことが可能となる。 Further, the protruding portion 41 the lens holding unit top 32 which projects substantially perpendicularly to the extrusion axis 37 axially of the lens holding unit 30, the horizontal plane of the mounting portion 35 as the protrusion 41 is fitted to the the engaging hole 42 formed in a direction substantially perpendicular to the axial direction of the extrusion axis 37, both being adapted to be positioned and fixed, by extrusion mechanism 38 extrusion axis 37 after its assembly on the distal end side so moved, it is possible to extrude the eye from the tip portion of the insertion tube 32 IOL10 installed in the lens holding portion 30.

この第2実施例における押出軸37の先端部には前述の第1実施例と同様に、先端部37aの外形形状を幅広にし、かつ先端には突出した突出部37bを設けてあり、さらに押出軸37の先端部37aには、別部材により形成され、先端に一部を突出させた先端突出部50aを設けたレンズ送出部材50が配設されており、このレンズ送出部材50の先端突出部50aと前記押出軸37の突出部37aの両者によって、前記IOLを挿入器具内壁面にほとんど接触にさせることなく挿入器具先端近傍まで押し出すと共に、先細に形成したテーパーの付いた挿入器具の先端部となる挿入筒には、前記押出軸の先端突出部のみが進入移動して前記IOLをスムーズに且つ傷をつけずに挿入器具先端から押出すことが可能となる構成となっている。 Similar to this is the tip of the extrusion axis 37 of the second embodiment described above the first embodiment, the outer shape of the distal end portion 37a wider, and the tip is provided with a protruding portion 37b that protrudes further extrusion the tip portion 37a of the shaft 37 is formed by a separate member, the tip and lens delivery member 50 having a tip projecting portion 50a which is protruded part is disposed, end projecting portion of the lens delivery member 50 50a and by both the projecting portions 37a of the extrusion axis 37, with pushing to the insertion instrument tip proximity without almost contacting said IOL insertion tool inner wall, and the distal end portion of the insertion tool with a taper formed in the tapered the insertion tube made of, has a structure in which only the tip protrusion of the extrusion axis is possible to extrude from the insertion instrument tip with no smoothly and scratches the IOL enters move.

図6及び図7は、本発明に係る第3実施例を示す眼内挿入用レンズの挿入器具に適用される押出軸と押出軸の先端部に装着されるレンズ送出部材を示す拡大側面図及び平面図である。 6 and 7, and an enlarged side view showing a lens delivery member which is attached to the distal end of the extrusion axis and the extrusion axis to be applied to the insertion tool intraocular lens according to a third embodiment of the present invention it is a plan view.

この第3実施例においては、押出軸60の先端部60aは後部側の押出軸60の径より大きく形成されると共に、先端部60aの突出部60bを有するもので、上記実施例と同様であるが、突出部60bは端面にIOL10のレンズ光学部の側周に係合する湾曲面60cが形成されたものである。 In the third embodiment, the tip portion 60a of the pushing shaft 60 while being larger than the diameter of the rear side of the extrusion axis 60, as it has a projecting portion 60b of the distal end portion 60a, is similar to the above examples but the protruding portion 60b are those curved surface 60c that engages the side periphery of the lens optical portion of IOL10 the end face is formed. 70はレンズ送出部材で、前記押出軸60の先端部に装着されたものである。 70 is a lens delivery member, in which is mounted to the distal end of the extrusion axis 60. 前記レンズ送出部材70は、上面に前記押出軸60の先端部60aを嵌合する嵌合溝71が形成されると共に、先端側の一部には先端を肉薄にした先細テーパー72を有する先端突出部73が形成されたものである。 The lens delivery member 70, together with the fitting groove 71 for fitting a distal end portion 60a of the extrusion axis 60 on the upper surface is formed, the end projecting the portion of the distal end having a tapered taper 72 in which the tip thin in which part 73 is formed.

前記レンズ送出部材70の先端突出部72は、挿入器具74のレンズ設置部75に位置するIOLを掬い上げる作用を行うための形状であり、少なくとも先端突出部72の先端側の厚みは500μm以上2.0mm以下であることが好ましい。 The end projecting portion 72 of the lens delivery member 70 is shaped to perform a function of scooping the IOL located in the lens disposing part 75 of the insertion tool 74, at least the tip end of the thickness of the end projecting portion 72 is 500μm or more 2 it is preferable .0mm is less than or equal to. さらに、前記突出部の幅寸法は挿入器具の内壁面の内径より小さく、IOLを掬い上げる強度が必要で、2.0mm以上であることが良い。 Furthermore, the width of the protrusion is smaller than the inner diameter of the inner wall surface of the insertion tool is necessary strength scooping the IOL, it is better than 2.0mm or more. また、前記突出部の長さも、長すぎても、短すぎてもIOLを支えることができないので、好ましくは、1〜5mm程度である。 Also, the length of the protrusion, it is too long, it is not possible to support the IOL be too short, preferably about 1 to 5 mm.

また、この第3実施例においては、前述の実施例と同様に前記押出軸60と共に連動するためにレンズ送出部材70に凸部82を、また押出軸60の外周面に凹部83を形成することで、両者を互いに係合固定するようになっている。 Further, in this third embodiment, by forming the recess 83 on the outer peripheral surface of the projection 82, also extrusion axis 60 with the lens delivery member 70 to interlock with examples and the extrusion axis 60 similar to the aforementioned in, so that both the engaging fixed to each other.

なお、この第3実施例にあっても、押出軸60とレンズ送出部材70とは、互いに弾性嵌合状態で連結されるので、前記凹凸部83,82を省略することも可能である。 Even in this third embodiment, the extrusion axis 60 and the lens delivery member 70, since it is connected by elastic fitting with each other, it is also possible to omit the uneven portion 83,82.
そして、前記挿入工程中の連動は、前述の実施例同様にレンズ送出部材70の先端部70aが包持部材18の内壁面に連設されたテーパー部15の始端や突起状の形状に到達した位置でレンズ送出部材70は停止し、押出軸60のみがそのままIOLを押し出しながらテーパー部15を介して挿入筒17に進入移動を継続する構成となっている。 The interlocking in the insertion process, reaches the starting end and protruding shape of the tapered portion 15 on the inner wall surface provided continuously in the distal end portion 70a is embraced member 18 of Example Similarly lens delivery member 70 of the above lens delivery member 70 in position has a structure to continue entering movement in the insertion tube 17 through the tapered section 15 while extruding the stop, only the extrusion axis 60 as IOL.

以上のように上述の実施例ではレンズ送出部材の先端部を押出軸の中心軸に対して非対称形状とする例を説明したが、これに限定することなく押出軸の中心軸に対して、不等間隔に配置しても良いことは言うまでもない。 An example has been described that the asymmetrical tip portion of the lens delivery member with respect to the central axis of the extrusion axis in the above embodiment, as described above, with respect to the central axis of the extrusion axis without limitation, non it is needless to say that may be arranged at regular intervals. また、レンズ送出部材の先端部の両先端部が対称形状或いは非対称形状であっても機能上の問題はないことは勿論である。 It both tips of the distal end of the lens delivery member is no problem on the function be symmetric or asymmetric shape is a matter of course.

本発明に係る眼内挿入用レンズの挿入器具の一実施の形態を示す全体平面図である。 Is a plan view whole showing an embodiment of an insertion instrument intraocular lens according to the present invention. 図1の眼内挿入用レンズと包持部材と押出軸と送出部材の拡大図であり、眼内挿入用レンズの移動工程の初期状態を示す要部平面図である。 Is an enlarged view of the intraocular lens and the holder-member and the extrusion axis and delivery member of FIG. 1 is a plan view showing an initial state of a process of moving the intraocular lens. 図1の押出軸と送出部材の連動状態時の連結形態を示す要部平面図である。 Is a plan view showing the connecting configuration when interlocked state of the extrusion axis and delivery member of FIG. 本発明の眼内挿入用レンズの挿入器具に係る第2実施例を示す斜視図である。 A second embodiment of the insertion device of intraocular lens of the present invention is a perspective view showing. 図4の眼内挿入用レンズの挿入器具の側面図である。 It is a side view of the insertion tool intraocular lens of FIG. 本発明の眼内挿入用レンズの挿入器具に適用される押出軸とレンズ押出部材の結合状態を示す概略側面図である。 The bonding state of the applied extruded shaft and the lens pushing member insertion instrument intraocular lens of the present invention is a schematic side view showing. 図6の眼内挿入用レンズの挿入器具に適用される押出軸とレンズ押出部材の結合状態を示す概略平面図である。 It is a schematic plan view showing a coupling state of the applied extruded shaft and the lens pushing member insertion instrument intraocular lens of FIG.

符号の説明 DESCRIPTION OF SYMBOLS

10 眼内挿入用レンズ(IOL) 10 intraocular lens (IOL)
11 挿入器具本体 12,37,60 押出軸 12a,37a,60a 押出軸の先端部 12b,37b,60b 突出部 13 ねじ筒 14 押出機構 15 テーパー部 16 レンズ設置部 17 挿入筒 18 包持部材 19,50,70 レンズ送出部材 19a,50a 送出部材の先端部 20,73 先端突出部 21,71 嵌合溝 22,82 凸部 23,83 凹部 11 the insertion device body 12,37,60 extrusion axis 12a, 37a, of 60a extruded shaft tip 12b, 37b, 60b protruding portion 13 screw cylinder 14 pushing mechanism 15 tapered portion 16 lens disposing part 17 inserted tube 18 embracing member 19, 50 and 70 lens delivery member 19a, the tip portion 20,73 end projecting portion 21 and 71 fitting groove of 50a delivery member hubs 22, 82 protrusions 23,83 recess

Claims (4)

  1. 眼内挿入用レンズの挿入器具において、眼内挿入用レンズを押し出すための押出軸の先端部近傍を、該押出軸の中間部より幅寸法が大きく、かつ挿入器具の内壁面の内径寸法より小さく形成すると共に、該押出軸の先端部に少なくとも一部を突出させた突出部を形成したことを特徴とする眼内挿入用レンズの挿入器具。 In the insertion instrument intraocular lens, the vicinity of the front end portion of the extrusion axis for extruding the intraocular lens, the width dimension is greater than the intermediate portion of the pressing Dejiku, and smaller than the inner diameter of the inner wall surface of the insertion device and forming, insertion tool intraocular lens characterized by forming the protruding portion that is protruded at least a portion on the tip portion of the pressing Dejiku.
  2. 、眼内挿入用レンズの挿入器具において、眼内挿入用レンズを押し出すための押出軸の先端部近傍に、先端を突出させた少なくとも一部にレンズ光学部を内腔に浮かせた状態で保持する先端突出部を設けたレンズ送出部材を装着させたことを特徴とする眼内挿入用レンズの挿入器具。 In the insertion instrument intraocular lens, for holding the vicinity of the distal end portion of the extrusion axis for extruding the intraocular lens, in a state of floating the lens optic portion in the lumen in at least a portion which is protruded tip insertion device intraocular lens, characterized in that the lens delivery member provided with end projecting portion is mounted.
  3. 眼内挿入用レンズの挿入器具において、前記押出軸の先端部から突出した突出部及び前記レンズ送出部材の先端突出部の少なくとも一方が、前記レンズの進入移動時における挿入器具の内壁面に近接する位置となるように配置したことを特徴とする請求項1又は請求項2に記載の眼内挿入用レンズの挿入器具。 In the insertion instrument intraocular lens, at least one of the end projecting portion of the extrusion axis projection and the lens delivery member protruding from the tip of, close to the inner wall surface of the insertion tool at the time of entering the movement of the lens insertion device intraocular lens according to claim 1 or claim 2, characterized in that arranged so as to position.
  4. 眼内挿入用レンズの挿入器具において、前記レンズ送出部材の先端突出部は、先端の少なくとも一部が突出した形状を有し、かつ前記眼内挿入用レンズ挿入器具の押出軸の先端部の外形形状よりも幅寸法が大きく、前記挿入器具の内壁面の内径寸法より小さくしたことを特徴とする請求項2に記載の眼内挿入用レンズの挿入器具。 In the insertion instrument intraocular lens, end projecting portion of the lens delivery member is at least partially has a shape protruding, and the outer shape of the tip portion of the extrusion axis of the intraocular lens insertion of the tip larger width than the shape, the insertion instrument intraocular lens according to claim 2, characterized in that it has less than the inner diameter of the inner wall surface of the insertion device.



JP2004191703A 2004-06-29 2004-06-29 Intraocular lens insertion instrument Pending JP2006006817A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007330783A (en) * 2006-05-18 2007-12-27 Canon Star Kk Insertion device for intraocular lens
JP2008289672A (en) * 2007-05-24 2008-12-04 Staar Japan Kk Insertion instrument of intraocular insertion lens
JP2009545364A (en) * 2006-07-31 2009-12-24 ラン オレン, Arthroscopic under bone grafting method and useful medical devices to it
JP2010094319A (en) * 2008-10-17 2010-04-30 Nidek Co Ltd Intraocular lens injector
JP2010533531A (en) * 2007-07-18 2010-10-28 レイナー イントラオキュラー レンジズ リミテッド Apparatus for inserting an intraocular lens into an eye
US7879090B2 (en) 2006-12-13 2011-02-01 Bausch & Lomb Incorporated Intraocular lens injector apparatus and methods of use
JP2012517322A (en) * 2009-02-11 2012-08-02 アルコン リサーチ, リミテッド Intraocular lens injector device
US8657835B2 (en) 2012-01-27 2014-02-25 Alcon Research, Ltd. Automated intraocular lens injector device
US8801780B2 (en) 2008-10-13 2014-08-12 Alcon Research, Ltd. Plunger tip coupling device for intraocular lens injector
US8808308B2 (en) 2008-10-13 2014-08-19 Alcon Research, Ltd. Automated intraocular lens injector device

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007330783A (en) * 2006-05-18 2007-12-27 Canon Star Kk Insertion device for intraocular lens
JP2009545364A (en) * 2006-07-31 2009-12-24 ラン オレン, Arthroscopic under bone grafting method and useful medical devices to it
US8252053B2 (en) 2006-12-13 2012-08-28 Bausch & Lomb Incorporated Intraocular lens injector apparatus and methods of use
US7879090B2 (en) 2006-12-13 2011-02-01 Bausch & Lomb Incorporated Intraocular lens injector apparatus and methods of use
JP2008289672A (en) * 2007-05-24 2008-12-04 Staar Japan Kk Insertion instrument of intraocular insertion lens
JP2010533531A (en) * 2007-07-18 2010-10-28 レイナー イントラオキュラー レンジズ リミテッド Apparatus for inserting an intraocular lens into an eye
US9763774B2 (en) 2008-10-13 2017-09-19 Novartis Ag Plunger tip coupling device for intraocular lens injector
US8808308B2 (en) 2008-10-13 2014-08-19 Alcon Research, Ltd. Automated intraocular lens injector device
US8801780B2 (en) 2008-10-13 2014-08-12 Alcon Research, Ltd. Plunger tip coupling device for intraocular lens injector
JP2010094319A (en) * 2008-10-17 2010-04-30 Nidek Co Ltd Intraocular lens injector
US9421092B2 (en) 2009-02-11 2016-08-23 Alcon Research, Ltd. Automated intraocular lens injector device
JP2012517322A (en) * 2009-02-11 2012-08-02 アルコン リサーチ, リミテッド Intraocular lens injector device
US8657835B2 (en) 2012-01-27 2014-02-25 Alcon Research, Ltd. Automated intraocular lens injector device

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