JP6045659B1 - Medical instruments - Google Patents

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JP6045659B1
JP6045659B1 JP2015147422A JP2015147422A JP6045659B1 JP 6045659 B1 JP6045659 B1 JP 6045659B1 JP 2015147422 A JP2015147422 A JP 2015147422A JP 2015147422 A JP2015147422 A JP 2015147422A JP 6045659 B1 JP6045659 B1 JP 6045659B1
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sclera
hook
intraocular lens
eye
folded
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JP2017023571A (en
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一夫 市川
一夫 市川
則彦 吉田
則彦 吉田
裕人 戸田
裕人 戸田
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Chukyo Medical Co Ltd
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Abstract

【課題】インプラントの支持部の先端を強膜の内部や外部に牽引する作業が、支持部先端に形成された屈曲部を効果的に利用することによって従来より容易に行えるようにした医療用器具を提供する。【解決手段】器具1は棒状部2の端部近傍にフック部3を備える。フック部3によって、例えば眼内レンズ5のハプティク51の先端に形成された折り返し部52を引っ掛けて、強膜の外部や内部まで牽引する。フック部3は、折り返し部52が眼外まで牽引される際にフック形状が変形しない程度の剛性を有する。【選択図】図1[PROBLEMS] To provide a medical instrument in which the operation of pulling the tip of a support portion of an implant to the inside or outside of the sclera can be performed more easily than before by effectively using a bent portion formed at the tip of the support portion. I will provide a. An instrument includes a hook portion in the vicinity of an end of a rod-shaped portion. For example, the hook portion 3 hooks the folded portion 52 formed at the tip of the haptic 51 of the intraocular lens 5 and pulls it to the outside or inside of the sclera. The hook portion 3 has such a rigidity that the hook shape is not deformed when the folded portion 52 is pulled out of the eye. [Selection] Figure 1

Description

本発明は医療用器具に関する。   The present invention relates to a medical instrument.

周知のとおり、眼の白内障に対する治療として、患者の白濁した水晶体を摘出した後に、眼内レンズ(IOL、Intraocular Lense)を眼内に挿入する手術が広く行われている。本発明者は下記特許文献1において、支持部(例えばハプティク)の先端に折り返し部を有する眼内レンズを提案した。支持部の先端を強膜内トンネルに挿入、あるいは強膜外に引き抜くことにより、折り返し部が強膜に掛止することとなって、眼内レンズが安定的に支持される。   As is well known, surgery for inserting an intraocular lens (IOL) into the eye after the patient's clouded lens has been removed as a treatment for cataract of the eye is widely performed. In the following Patent Document 1, the present inventor proposed an intraocular lens having a folded portion at the tip of a support portion (for example, haptic). By inserting the tip of the support part into the intrascleral tunnel or pulling it out of the sclera, the folded part is hooked on the sclera, and the intraocular lens is stably supported.

特許第5398092号公報Japanese Patent No. 5398092

特許文献1では、ハプティクの先端に折り返し部を有する眼内レンズを眼内に移植する際の手順として、眼内レンズを眼内へ挿入した後に、鉗子などの器具によってハプティクの先端を強膜内トンネルの中、あるいは強膜の外部へ引き抜いている。鉗子や鑷子などのような既存の器具でもハプティク先端の引き抜き作業は可能ではあるが、改良の余地も十分あると考えられる。特に、折り返し部の存在を有効に利用するかたちでハプティク先端の引き抜き作業が行えるような器具を開発すれば、強膜固定の眼内レンズの移植手術がより簡易に行えるようになる可能性がある。この課題は眼内レンズには限定されず、支持部に屈曲部を有するようなインプラントすべてに対する課題である。   In Patent Document 1, as a procedure for implanting an intraocular lens having a folded portion at the tip of a haptic into the eye, after inserting the intraocular lens into the eye, the tip of the haptic is placed in the sclera with an instrument such as forceps. It is pulled out of the tunnel or outside the sclera. Although it is possible to pull out the haptic tip with existing instruments such as forceps and levers, there is still room for improvement. In particular, if an instrument that can pull out the haptic tip in a way that effectively utilizes the presence of the folded portion, it may be possible to perform implantation of a scleral-fixed intraocular lens more easily. . This problem is not limited to intraocular lenses, but is a problem for all implants having a bent portion in the support portion.

そこで本発明が解決しようとする課題は、上記に鑑み、インプラントの支持部の先端を強膜の内部や外部に牽引する作業が、支持部先端に形成された屈曲部を効果的に利用することによって従来より容易に行えるようにした医療用器具を提供することにある。   Therefore, in view of the above, the problem to be solved by the present invention is that the operation of pulling the tip of the support portion of the implant to the inside or outside of the sclera effectively uses the bent portion formed at the tip of the support portion. Thus, it is an object of the present invention to provide a medical instrument that can be performed more easily than before.

上記課題を解決するために、本発明に係る医療用器具は、所定のインプラントが有する支持部の先端の屈曲部を引っ掛けて牽引する医療用器具であって、施術者が把持する把持部と、前記把持部の端部に配置され、眼の強膜に形成された切開創から挿入されて、眼内に配置された前記屈曲部を引っ掛けて、前記切開創を通じて前記屈曲部を強膜の内部または外部まで牽引するフック形状を有するフック部と、を備えたことを特徴とする。この発明によれば、インプラントの支持部の屈曲部を牽引するという簡易な作業によって、強膜の内部や外部で支持されるインプラントの移植作業が従来よりも容易に行える。 In order to solve the above-mentioned problem, a medical instrument according to the present invention is a medical instrument that hooks and pulls a bent portion at a tip of a support part of a predetermined implant , and a gripping part that a practitioner grips, disposed at the end of the grip portion, the interior of which is inserted from the incision formed in the sclera of the eye, hooking the bent portion disposed in the eye, the sclera of the bent portion through the incision Or a hook portion having a hook shape to be pulled to the outside. According to the present invention, the implanting operation of the implant supported inside or outside of the sclera can be performed more easily than before by a simple operation of pulling the bent portion of the support portion of the implant.

また前記フック部は、前記屈曲部が強膜の内部または外部まで牽引される際にフック形状が変形しない程度の剛性を有するとしてもよい。この発明によれば、フック部が充分な剛性を有するので、屈曲部を強膜の内部または外部まで牽引する途中で屈曲部が脱落して施術に支障をきたすおそれが回避されて、確実に移植作業が行える。   Further, the hook portion may have such a rigidity that the hook shape is not deformed when the bent portion is pulled to the inside or the outside of the sclera. According to the present invention, since the hook portion has sufficient rigidity, there is no possibility that the bent portion may drop off during the pulling of the bent portion to the inside or outside of the sclera, thereby causing a trouble in the operation, and the transplantation can be reliably performed. Work can be done.

また前記把持部が強膜における毛様体扁平部の外側の領域に位置する場合に、前記フック部が毛様体皺襞部の内方空間に位置するように、前記把持部から前記フック部まで延設された延設部を備えたとしてもよい。この発明によれば、毛様体扁平部を通るように切開創を形成して、そこまでインプラントの支持部の屈曲部を牽引する作業が確実に行えて、毛様体扁平部の位置でインプラントを支持する形態が可能となる。   In addition, when the grip portion is located in a region outside the ciliary flat portion in the sclera, the hook portion is positioned in the inner space of the ciliary heel portion from the grip portion to the hook portion. It is good also as providing the extended part extended. According to the present invention, an incision can be formed so as to pass through the ciliary flat part, and the work of pulling the bent part of the support part of the implant can be reliably performed so that the implant is positioned at the ciliary flat part. The form which supports is possible.

また前記所定のインプラントは眼内レンズであるとしてもよい。この発明によれば、眼内レンズの支持部の屈曲部を効果的に利用することによって、強膜の内部や外部を用いて支持される眼内レンズの移植作業が従来よりも容易に行える。   The predetermined implant may be an intraocular lens. According to the present invention, by effectively using the bent portion of the support portion of the intraocular lens, the implantation operation of the intraocular lens supported using the inside or the outside of the sclera can be performed more easily than before.

本発明の医療用器具の実施例1を示す斜視図。The perspective view which shows Example 1 of the medical instrument of this invention. 図1の部分拡大図。The elements on larger scale of FIG. 眼内レンズの例を示す図。The figure which shows the example of an intraocular lens. 医療用器具で眼内レンズを牽引する様子の例を示す図。The figure which shows the example of a mode that pulls an intraocular lens with a medical instrument. 眼内レンズの移植手術の途中の状態の第1の例を示す図。The figure which shows the 1st example of the state in the middle of the transplant operation of an intraocular lens. 眼内レンズの移植手術の途中の状態の第2の例を示す図。The figure which shows the 2nd example of the state in the middle of the transplant operation of an intraocular lens. 眼内レンズの移植後の状態の例を示す図。The figure which shows the example of the state after the implantation of an intraocular lens. 本発明の医療用器具の実施例2を示す斜視図。The perspective view which shows Example 2 of the medical instrument of this invention. 本発明の医療用器具の実施例3を示す斜視図。The perspective view which shows Example 3 of the medical instrument of this invention. 眼内レンズの移植手術の途中の状態の第3の例を示す図。The figure which shows the 3rd example of the state in the middle of the transplant operation of an intraocular lens. 眼内レンズの移植手術の途中の状態の第4の例を示す図。The figure which shows the 4th example of the state in the middle of the transplant operation of an intraocular lens.

以下、本発明の実施例を図面を参照しつつ説明する。まず図1および図2は本発明の実施例1における医療用器具1(以下、器具)の斜視図および部分拡大図である。   Embodiments of the present invention will be described below with reference to the drawings. First, FIG. 1 and FIG. 2 are a perspective view and a partially enlarged view of a medical instrument 1 (hereinafter, instrument) in Example 1 of the present invention.

器具1は、眼内に挿入された所定のインプラント(例えば後述する眼内レンズ)が備える折り返し部分を引っ掛けて強膜の内部や外部へ牽引するための器具である。器具1は棒状部2、フック部3、ストッパ4を備える。棒状部2は例えば施術者が指で、あるいは鑷子などで把持する部位である。棒状部2の長さや太さは後述する移植手術に適する数値とすればよい。   The instrument 1 is an instrument for hooking a folded portion of a predetermined implant (for example, an intraocular lens described later) inserted into the eye and pulling it inside or outside the sclera. The instrument 1 includes a rod-shaped part 2, a hook part 3, and a stopper 4. The rod-shaped part 2 is a part that the practitioner grips with a finger or a lever or the like. The length and thickness of the rod-like portion 2 may be values suitable for transplantation surgery described later.

フック部3は、棒状部2の軸方向の端部に配置されて、後述するように例えば眼内レンズのハプティクに形成された折り返し部を引っ掛けて牽引する部位である。フック部3は図2に示すように、湾曲した湾曲部30と端部31とを備えたフック(鉤)形状を有する。フック部3は棒状部2と別体で形成されて後に棒状部2に接合されてもよく、棒状部3と一体に形成される形態でもよい。フック部3は、例えば金属や剛性樹脂のように、後述するような施術内容に適した剛性を有する材質で形成すればよい。ストッパ4は器具1全体の中央付近に何らかの立体形状で形成された部位である。ストッパ4は、器具1の位置を保持するために備えられる。なおストッパ4を備えない形態でもよい。   The hook portion 3 is a portion that is disposed at an end portion in the axial direction of the rod-like portion 2 and hooks and pulls a folded portion formed on a haptic of an intraocular lens, for example, as will be described later. As shown in FIG. 2, the hook portion 3 has a hook shape having a curved portion 30 and an end portion 31 that are curved. The hook portion 3 may be formed separately from the rod-shaped portion 2 and may be joined to the rod-shaped portion 2 later, or may be formed integrally with the rod-shaped portion 3. The hook portion 3 may be formed of a material having rigidity suitable for the treatment content described later, such as metal or rigid resin. The stopper 4 is a part formed in some solid shape near the center of the entire instrument 1. The stopper 4 is provided to hold the position of the instrument 1. Note that the stopper 4 may not be provided.

図3は器具1を用いる対象である上述の所定のインプラントの例として眼内レンズを示す図である。図3の眼内レンズ5は主要な構成として、レンズ50と2本のハプティク51とを備える。レンズ50は、正面視で円盤形状であり、中央部の厚さが大きい凸レンズや中央部の厚さが小さい凹レンズとすればよい。ハプティク51はレンズ50を眼内に支持する部位である。ハプティク51は、レンズ50の側縁の2箇所から、視軸(レンズ50の中心軸)に関して対称な1対のループ形状で延設されている。2本のハプティク51には、いずれも先端側に、逆方向に折り返された折り返し部52が形成されている。   FIG. 3 is a view showing an intraocular lens as an example of the above-described predetermined implant which is a target to which the instrument 1 is used. The intraocular lens 5 of FIG. 3 includes a lens 50 and two haptics 51 as main components. The lens 50 may have a disk shape when viewed from the front, and may be a convex lens having a large central portion or a concave lens having a small central portion. The haptic 51 is a part that supports the lens 50 in the eye. The haptic 51 is extended from two places on the side edge of the lens 50 in a pair of loop shapes symmetrical with respect to the visual axis (the central axis of the lens 50). Each of the two haptics 51 is formed with a folded portion 52 that is folded in the opposite direction on the tip side.

レンズ50が眼内に配置された状態で、ハプティク51は、例えば強膜に形成された切開創から先端が外部に引き抜かれて、折り返し部52が強膜の外表面に掛止することによってレンズ50を眼内に支持する。あるいは折り返し部52が折りたたまれた状態でハプティク51を強膜に形成された強膜内トンネルの内部に挿入することによって、折り返し部51が同トンネルの内壁に掛止することによってレンズ50を眼内に支持する。   In a state where the lens 50 is placed in the eye, the haptic 51 is formed by, for example, the tip being pulled out from an incision formed in the sclera and the folded portion 52 being hooked on the outer surface of the sclera. 50 is supported in the eye. Alternatively, the haptic 51 is inserted into the scleral tunnel formed in the sclera in a state where the folded portion 52 is folded, and the folded portion 51 is hooked on the inner wall of the tunnel so that the lens 50 is intraocularly. To support.

ハプティク51は例えば弾性を有する樹脂などで形成すればよい。それにより、折り返し部52の折れ曲がり部分やハプティック51が有する弾性復元力などによって、折り返し部52が強膜の外側表面や強膜内トンネル内壁に強く掛止することとなって、レンズ50が安定的に支持される。   The haptic 51 may be formed of, for example, an elastic resin. As a result, the folded portion 52 is strongly hooked to the outer surface of the sclera or the inner wall of the intrascleral tunnel due to the bent portion of the folded portion 52 or the elastic restoring force of the haptic 51, so that the lens 50 is stable. Supported by

図4は器具1によって眼内レンズ5のハプティク51(あるいは折り返し部52)を牽引する様子の例を、眼の組織は省略して視軸方向から見た図である。同図のとおり、両方の折り返し部52に器具1のフック部3を掛けて、それぞれの器具1を棒状部2の方向に牽引する。これにより視軸に関して対称な力が働くので、レンズ50の位置は動かさずに(ただし視軸を中心に回転させながら)、折り返し部52およびハプティク51が互いに逆方向に牽引される。   FIG. 4 is a diagram illustrating an example of a state in which the haptic 51 (or the folded portion 52) of the intraocular lens 5 is pulled by the instrument 1 and is viewed from the visual axis direction with the ocular tissue omitted. As shown in the figure, the hooks 3 of the instrument 1 are hung on both folded-back parts 52 and each instrument 1 is pulled in the direction of the rod-shaped part 2. As a result, a symmetrical force is exerted with respect to the visual axis, so that the position of the lens 50 is not moved (but rotated around the visual axis), and the folded portion 52 and the haptic 51 are pulled in opposite directions.

図5、図6は器具1によって眼内レンズ5のハプティク51(あるいは折り返し部52)を牽引する様子の例を、眼の組織とともに横方向から見た断面図であり、図7は移植後の様子の例を示す断面図である。なおこの例では折り返し部52が強膜の外部に引き出される。   5 and 6 are cross-sectional views of an example of a state in which the haptic 51 (or the folded portion 52) of the intraocular lens 5 is pulled by the instrument 1 as seen from the lateral direction together with the eye tissue, and FIG. It is sectional drawing which shows the example of a mode. In this example, the folded portion 52 is pulled out of the sclera.

図5に至るまでの手順として例えば、眼内レンズ5を、角膜100に形成された切開から、棒状に丸めた状態にして所定のインジェクタ等により、眼内の虹彩102よりも後方に挿入する。そして強膜101における視軸に関して対称な位置に2つの切開創を形成する。切開創の眼内での位置は図5に示すように毛様体皺襞部103よりも前方の毛様溝104の位置でよい。それらの切開創から器具1をフック部3を先頭にして挿入する。   As a procedure up to FIG. 5, for example, the intraocular lens 5 is inserted from the incision formed in the cornea 100 into a rod-like state and inserted behind the iris 102 in the eye by a predetermined injector or the like. Then, two incisions are formed at positions symmetric with respect to the visual axis in the sclera 101. The position of the incision in the eye may be the position of the ciliary groove 104 in front of the ciliary body part 103 as shown in FIG. The instrument 1 is inserted from these incisions with the hook portion 3 at the top.

そして図5に示すようにそれぞれのフック部3で折り返し部52を引っ掛ける。この状態でストッパ4が強膜101の外側表面に当接することにより器具1の位置を保持した状態で適切に施術が行える。   Then, as shown in FIG. 5, the folded portion 52 is hooked by each hook portion 3. In this state, the stopper 4 comes into contact with the outer surface of the sclera 101, so that the treatment can be appropriately performed while the position of the instrument 1 is maintained.

そして上記の図4のように両方の器具1の棒状部2を同時に切開創から引き抜く方向に牽引する。図6のように折り返し部52の全体を強膜101の外部に出したら、折り返し部52からフック部3を外す。これにより図7に示す状態となって、ハプティク51の持つ弾性復元力によって折り返し部51が強膜101の外側表面に押し付けられる。またハプティク51を根元側に引っ張る力が発生すると、折り返し部52が強膜101の外側表面に掛止する。これらの作用によりハプティク51が眼内レンズ5を安定的に眼内に支持する。   Then, as shown in FIG. 4 described above, the rod-like portions 2 of both instruments 1 are pulled in the direction of being simultaneously pulled out from the incision. As shown in FIG. 6, when the entire folded portion 52 is brought out of the sclera 101, the hook portion 3 is removed from the folded portion 52. Accordingly, the state shown in FIG. 7 is obtained, and the folded portion 51 is pressed against the outer surface of the sclera 101 by the elastic restoring force of the haptic 51. Further, when a force that pulls the haptic 51 toward the base side is generated, the folded portion 52 is hooked on the outer surface of the sclera 101. With these actions, the haptic 51 stably supports the intraocular lens 5 in the eye.

ハプティク51を強膜内トンネルに挿入する場合には、例えば強膜101における視軸に関する対称な2か所に強膜半層弁を形成し、その下層の箇所から、例えば眼球の中心方向へ強膜切開を形成する。さらに、強膜半層弁がくり貫かれた部分の側壁における、強膜表面から例えば強膜厚さのほぼ半分の深さの箇所を入口として、縁部にほぼ平行な方向に、つまり視軸に関する周方向に強膜内トンネルを形成する。強膜内トンネルは適切な長さ(例えば2mmから3mm)で、強膜表面を出口として貫通するように形成すればよい。   When inserting the haptic 51 into the intrascleral tunnel, for example, a scleral half-layer valve is formed at two symmetrical points with respect to the visual axis in the sclera 101, and the strong layer 51, for example, moves toward the center of the eyeball. Make a membrane incision. Furthermore, in the side wall of the portion where the scleral half-layer valve is cut out, the entrance is a point at a depth half the thickness of the sclera from the sclera surface, for example, in a direction substantially parallel to the edge, that is, the visual axis. The intrascleral tunnel is formed in the circumferential direction. The intrascleral tunnel may be formed with an appropriate length (for example, 2 mm to 3 mm) so as to penetrate the sclera surface as an outlet.

そして2本の器具1を強膜内トンネルを通じて眼内に挿入し、上記と同様に2本の器具1のフック部3を折り返し部52に掛けて牽引する。これにより折り返し部52が折り畳まれた状態となって強膜内トンネルの内部へ挿入される。折り返し部52の全体が強膜内トンネルに挿入されたら、折り返し部52からフック部3を外す。以上により折り返し部52が弾性復元力でトンネルの内壁を押圧することとなって、ハプティク51を根元側に引き抜く力が発生しても、それに抵抗して眼内レンズ5が確実に支持されることとなる。   Then, the two instruments 1 are inserted into the eye through the intrascleral tunnel, and the hook parts 3 of the two instruments 1 are hooked on the folded-back part 52 and pulled as described above. As a result, the folded portion 52 is folded and inserted into the intrascleral tunnel. When the entire folded portion 52 is inserted into the intrascleral tunnel, the hook portion 3 is removed from the folded portion 52. As a result, the folded portion 52 presses the inner wall of the tunnel with an elastic restoring force, and even if a force for pulling out the haptic 51 to the root side is generated, the intraocular lens 5 is reliably supported by resisting it. It becomes.

フック部3は以上のような施術内容に適した剛性を有するように形成すればよい。すなわちフック部3は、折り返し部52を強膜の内部または外部まで牽引する際にフック形状が変形しない程度の剛性を有するようにすればよい。これにより、折り返し部52を強膜の内部または外部まで牽引する途中で折り返し部52が脱落して施術に支障をきたすおそれが回避される。なお従来文献(例えば特開平07−194643号公報、実用新案登録第3115747号公報)には、虹彩を牽引するフック形状を有する器具が開示されているが、これらは、虹彩を牽引する点、および強膜の内部や外部まで牽引しない点で本願と異なるのみでなく、剛性の点でも異なる。すなわちこれらの器具ではフック形状の部分は可撓性を有しており、術後に眼外に引き出す際にフック形状が真っ直ぐな形状に変形するようにされている。   What is necessary is just to form the hook part 3 so that it may have the rigidity suitable for the above treatment contents. That is, the hook portion 3 may have such a rigidity that the hook shape is not deformed when the folded portion 52 is pulled to the inside or outside of the sclera. This avoids the possibility that the folded portion 52 may drop off during the pulling of the folded portion 52 to the inside or outside of the sclera and hinder the treatment. In addition, in the conventional literature (for example, Japanese Patent Application Laid-Open No. 07-194443, Utility Model Registration No. 3115747), an instrument having a hook shape that pulls the iris is disclosed. Not only differs from the present application in that it does not pull to the inside or outside of the sclera, but also differs in terms of rigidity. That is, in these instruments, the hook-shaped portion has flexibility, and the hook shape is deformed into a straight shape when being pulled out of the eye after surgery.

本発明は上記実施例1の形態には限定されない。図8、図9には別の形態が示されている。図8、図9の器具1a、1bは眼内レンズ5のハプティク51を毛様体扁平部から眼外へ牽引する場合に用いられる器具である。   The present invention is not limited to the form of the first embodiment. FIG. 8 and FIG. 9 show another embodiment. The instruments 1a and 1b in FIGS. 8 and 9 are instruments used when the haptic 51 of the intraocular lens 5 is pulled out of the eye from the ciliary flat part.

図8に示された実施例2の器具1aでは、ストッパ4からフック部3までが湾曲した棒形状で延設された湾曲延設部6とされている。図9に示された実施例3の器具1bでは、ストッパ4からフック部3までが1箇所で屈曲した棒形状で延設された屈曲延設部7とされている。湾曲延設部6や屈曲延設部7の長さ(すなわちフック部3からストッパ4までの長さ)は後述の施術に適するように設定すればよい。なお図9の例では屈曲延設部7は1箇所で屈曲しているが、これに限定されず何箇所で屈曲していてもよい。   In the instrument 1a of the second embodiment shown in FIG. 8, the curved extension portion 6 extending from the stopper 4 to the hook portion 3 in a curved bar shape is used. In the instrument 1b of Example 3 shown in FIG. 9, the stopper 4 and the hook portion 3 are bent and extended portions 7 extended in a bar shape bent at one location. The length of the curved extending portion 6 and the bent extending portion 7 (that is, the length from the hook portion 3 to the stopper 4) may be set so as to be suitable for the treatment described later. In addition, in the example of FIG. 9, although the bending extension part 7 is bent in one place, it is not limited to this, You may bend in how many places.

図10および図11は、器具1aあるいは1bを用いて眼内レンズ5のハプティク51(あるいは折り返し部52)を、毛様体扁平部105を通じて強膜101の外部へ牽引する様子の例を示す断面図である。図10は移植途中の様子の例を示し、図11は移植後の様子の例を示している。この例では、強膜101における毛様体扁平部105の外側に当たる領域に視軸に関して対称な2箇所に切開創を形成する。そして、その切開創を通じて2本の器具1a(または1b)を、フック部3側を先頭にして眼内に挿入する。   10 and 11 are cross-sectional views showing an example of a state in which the haptic 51 (or the folded portion 52) of the intraocular lens 5 is pulled to the outside of the sclera 101 through the ciliary flat portion 105 using the instrument 1a or 1b. FIG. FIG. 10 shows an example of a state during transplantation, and FIG. 11 shows an example of a state after transplantation. In this example, incisions are formed at two locations symmetrical with respect to the visual axis in a region of the sclera 101 that is outside the ciliary flat portion 105. Then, the two instruments 1a (or 1b) are inserted into the eye through the incision with the hook portion 3 side at the head.

眼内レンズ5も上記例のように例えば角膜100に形成された切開創を通じて眼内へ挿入する。こうして眼内に眼内レンズ5と2本の器具1a(または1b)のフック部3とが挿入されたところで、2つのフック部3それぞれによって眼内レンズ5の2本のハプティク51の折り返し部52を引っ掛ける。その際、図10に示すように眼内レンズ5は虹彩102に比較的近い位置、例えば毛様体皺襞部103によって周方向から囲まれる空間(内方空間)に置いて、毛様体扁平部105から挿入された器具1a(または1b)のフック部3を折り返し部52まで届かせるようにすればよい。   The intraocular lens 5 is also inserted into the eye through an incision formed in the cornea 100 as in the above example. Thus, when the intraocular lens 5 and the hook part 3 of the two instruments 1a (or 1b) are inserted into the eye, the folded parts 52 of the two haptics 51 of the intraocular lens 5 are respectively inserted into the two hook parts 3. Hook. At that time, as shown in FIG. 10, the intraocular lens 5 is placed in a position relatively close to the iris 102, for example, in a space (inside space) surrounded by the ciliary body collar 103 from the circumferential direction, and the ciliary flat portion The hook part 3 of the instrument 1a (or 1b) inserted from 105 may be made to reach the folded part 52.

これにより、施術者に近い位置でフック部3を折り返し部52に引っ掛ける処理が行える。図10の状態でストッパ4が強膜101の外側表面に当接する。また湾曲延設部6や屈曲延設部7は、ストッパ4が強膜における毛様体扁平部の外側に位置する場合に、フック部3が毛様体皺襞部105の内方空間に位置するようにフック部3まで延設される。また湾曲延設部6や屈曲延設部7の剛性を(例えば剛性樹脂や金属などを材質として用いることにより)、図10から図11への作業中に湾曲延設部6や屈曲延設部7の形状が変化しない程度の剛性とすれば、折り返し部52へフック部3を引っ掛ける作業が施術者に近い場所で行えるなどの点で好適である。   Thereby, the process which hooks the hook part 3 on the folding | returning part 52 in the position near a practitioner can be performed. In the state shown in FIG. 10, the stopper 4 comes into contact with the outer surface of the sclera 101. In addition, the curved extending portion 6 and the bent extending portion 7 are located in the inner space of the ciliary collar portion 105 when the stopper 4 is positioned outside the ciliary flat portion in the sclera. Thus, it extends to the hook portion 3. Further, the bending extension portion 6 and the bending extension portion 7 are made rigid (for example, by using a rigid resin or metal as a material), and the bending extension portion 6 and the bending extension portion during the operation from FIG. 10 to FIG. If the rigidity is such that the shape of 7 does not change, it is preferable in that the operation of hooking the hook portion 3 to the folded portion 52 can be performed in a place close to the practitioner.

図10の状態で2本の器具1a(または1b)を眼外方向へ牽引する。牽引の結果折り返し部52の全体が眼外へ引き出されたら、フック部3を折り返し部52から外す。これにより図11に示す状態となって、ハプティク51の持つ弾性復元力によって折り返し部51が強膜101の外側表面に押し付けられ、折り返し部52が強膜101外側表面に掛止して、眼内レンズ5が眼内に支持される。   In the state of FIG. 10, the two instruments 1a (or 1b) are pulled in the extraocular direction. When the entire folded portion 52 is pulled out of the eye as a result of pulling, the hook portion 3 is removed from the folded portion 52. Thus, the state shown in FIG. 11 is obtained, and the folded portion 51 is pressed against the outer surface of the sclera 101 by the elastic restoring force of the haptic 51, and the folded portion 52 is hooked on the outer surface of the sclera 101. The lens 5 is supported in the eye.

以上のように本発明は、折り返し部52を毛様体扁平部105から外に出すかたちの施術にも適応できる。実施例2、3では、眼内レンズ5のハプティク51の長さも図11の状態に適する長さに設定しておけばよい。なお図11は折り返し部52を強膜101の外側表面まで引き抜く形態だが、これを上述のような強膜101(内トンネル)の内部へ引き込む形態に変更してもよい。   As described above, the present invention can also be applied to a treatment in which the folded portion 52 is brought out from the ciliary flat portion 105. In Examples 2 and 3, the length of the haptic 51 of the intraocular lens 5 may be set to a length suitable for the state of FIG. Although FIG. 11 shows a configuration in which the folded portion 52 is pulled out to the outer surface of the sclera 101, this may be changed to a configuration in which it is pulled into the sclera 101 (inner tunnel) as described above.

上記実施例は特許請求の範囲に記載された趣旨の範囲内で変更してよい。例えば器具1を用いる対象は眼内レンズ5に限定されず、脚状部の部位を備えて眼内に移植されるインプラントであって、その脚形状の先端に屈曲部を有するものであればよい。   The above embodiments may be modified within the scope of the spirit described in the claims. For example, the target using the instrument 1 is not limited to the intraocular lens 5, and may be any implant that has a leg-shaped portion and is implanted into the eye and has a bent portion at the tip of the leg shape. .

1 器具(医療用器具)
2 棒状部(把持部)
3 フック部
5 眼内レンズ
6 湾曲延設部(延設部)
7 屈曲延設部(延設部)
51 ハプティク(支持部)
52 折り返し部(屈曲部)
1 device (medical device)
2 Bar-shaped part (gripping part)
3 hook part 5 intraocular lens 6 curved extension part (extension part)
7 Bending extension (extension part)
51 Haptic (supporting part)
52 Folding part (bending part)

Claims (4)

所定のインプラントが有する支持部の先端の屈曲部を引っ掛けて牽引する医療用器具であって、
施術者が把持する把持部と、
前記把持部の端部に配置され、眼の強膜に形成された切開創から挿入されて、眼内に配置された前記屈曲部を引っ掛けて、前記切開創を通じて前記屈曲部を強膜の内部または外部まで牽引するフック形状を有するフック部と、
を備えたことを特徴とする医療用器具。
A medical instrument for hooking and pulling a bent portion at a tip of a support portion of a predetermined implant,
A grasping part grasped by the practitioner;
Disposed at the end of the grip portion, the interior of which is inserted from the incision formed in the sclera of the eye, hooking the bent portion disposed in the eye, the sclera of the bent portion through the incision Or a hook portion having a hook shape to be pulled to the outside,
A medical instrument characterized by comprising:
前記フック部は、前記屈曲部が強膜の内部または外部まで牽引される際にフック形状が変形しない程度の剛性を有する請求項1に記載の医療用器具。   The medical device according to claim 1, wherein the hook portion has a rigidity that does not deform the hook shape when the bent portion is pulled to the inside or the outside of the sclera. 前記把持部が強膜における毛様体扁平部の外側の領域に位置する場合に、前記フック部が毛様体皺襞部の内方空間に位置するように、前記把持部から前記フック部まで延設された延設部を備えた請求項1または2に記載の医療用器具。   When the gripping part is located in a region outside the ciliary flat part in the sclera, the hook part extends from the gripping part to the hook part so that the hook part is located in the inner space of the ciliary heel part. The medical instrument according to claim 1, further comprising an extended portion provided. 前記所定のインプラントは眼内レンズである請求項1ないし3のいずれか一項に記載の医療用器具。   The medical device according to any one of claims 1 to 3, wherein the predetermined implant is an intraocular lens.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3409240A1 (en) * 2017-05-24 2018-12-05 VisionCare, Inc. Intraocular lens including scleral engagement portion
JP7122790B1 (en) 2022-04-14 2022-08-22 株式会社中京メディカル Manufacturing method for intraocular lens and intraocular lens support

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Publication number Priority date Publication date Assignee Title
JPS58146346A (en) * 1982-02-05 1983-08-31 トマス・ア−ル・マゾツコ Deformable intraocular lens and method and apparatus for implanting same
US4619656A (en) * 1984-01-10 1986-10-28 Lindstrom Richard L Intraocular lens
JPH08114774A (en) * 1994-10-17 1996-05-07 Menicon Co Ltd Intraocular lens

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58146346A (en) * 1982-02-05 1983-08-31 トマス・ア−ル・マゾツコ Deformable intraocular lens and method and apparatus for implanting same
US4619656A (en) * 1984-01-10 1986-10-28 Lindstrom Richard L Intraocular lens
JPH08114774A (en) * 1994-10-17 1996-05-07 Menicon Co Ltd Intraocular lens

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3409240A1 (en) * 2017-05-24 2018-12-05 VisionCare, Inc. Intraocular lens including scleral engagement portion
US10548713B2 (en) 2017-05-24 2020-02-04 Visioncare, Inc. Intraocular lens including scleral engagement portion
JP7122790B1 (en) 2022-04-14 2022-08-22 株式会社中京メディカル Manufacturing method for intraocular lens and intraocular lens support
JP2023157127A (en) * 2022-04-14 2023-10-26 株式会社中京メディカル Intraocular lens and manufacturing method of intraocular lens support part

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