JP2004290690A - Inserting appliance of lens for intraocular insertion - Google Patents
Inserting appliance of lens for intraocular insertion Download PDFInfo
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- JP2004290690A JP2004290690A JP2004178022A JP2004178022A JP2004290690A JP 2004290690 A JP2004290690 A JP 2004290690A JP 2004178022 A JP2004178022 A JP 2004178022A JP 2004178022 A JP2004178022 A JP 2004178022A JP 2004290690 A JP2004290690 A JP 2004290690A
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この発明は、白内障で水晶体を摘出した後に、水晶体の代わりに挿入される変形可能な眼内レンズや、視力補正のみを目的として眼内に挿入される変形可能な視力補正用レンズ等の変形可能な眼内挿入用レンズを眼内に挿入するための挿入器具に関するものである。 The present invention relates to a deformable intraocular lens that is inserted in place of the lens after the lens is extracted by cataract, or a deformable visual acuity correction lens that is inserted only into the eye for the purpose of visual acuity correction. The present invention relates to an insertion device for inserting a simple intraocular lens into an eye.
１９４９年リドレイ（Ｒｉｄｌｅｙ）が白内障手術の際に白濁した水晶体の代わりに人工の水晶体、即ち眼内レンズを初めて人眼に移植して以来、白内障の治療として眼内レンズを移植することは広く行われてきた。この初めての眼内レンズはポリメチルメタクリレート（ＰＭＭＡ）を光学部の材料とした眼内レンズで、白内障手術後の眼内レンズ移植に伴う合併症については多くの眼科医が関心を示し、それらの問題について取り組み、その多くは解決がなされてきたものの、硬質な材料を光学部に用いるという本質的な問題により、この眼内レンズを移植するための切開創は光学部の直径より幾分か大きめの寸法が必要となるために、眼球に作成する切開創は大きくなり、手術後の乱視が増大するといった問題が解決できない状況にあった。 Since Ridley implanted an artificial lens, an intraocular lens, into the human eye for the first time instead of a clouded lens during cataract surgery in 1949, implanting an intraocular lens as a treatment for cataract has been widespread. I have been. This first intraocular lens is an intraocular lens made of polymethyl methacrylate (PMMA) for the optical part. Many ophthalmologists are interested in the complications associated with intraocular lens transplantation after cataract surgery. The incision for implanting this intraocular lens is somewhat larger than the diameter of the optic, due to the inherent problem of using rigid materials for the optic, although many of the problems have been addressed and resolved. Because of the required size, the incision made in the eyeball becomes large, and the problem of increased post-operative astigmatism cannot be solved.
また、前述の問題の一因には手術方法も挙げられた。即ち、元来の白内障水晶体摘出術は、水晶体をそのままの形態で取り除く白内障嚢外摘出術（ＥＣＣＥ）で行われており、この手術方法では約１０ｍｍの切開創が必要であり、やはり手術後の乱視を増大させるといった問題があった。この様な手術後の乱視を招く手術方法に対して、超音波水晶体乳化吸引装置を用いた超音波水晶体乳化吸引術（ＰＥＡ）が近年出現している。これは、白濁した水晶体を、筒状の超音波チップを用いて、超音波で水晶体を破砕して乳化・吸引することにより、水晶体を摘出する方法で、この方法によれば眼球に作成する切開創は、筒状の超音波チップを挿入するためだけの寸法となり、その切開創は約３ｍｍ〜４ｍｍで水晶体摘出が可能となる。 One of the causes of the above-mentioned problem is a surgical method. That is, the original cataract lens extraction is performed by cataract extracapsular extraction (ECCE), which removes the lens in its original form, and this surgical method requires an incision of about 10 mm, which is also necessary after surgery. There was a problem of increasing astigmatism. Ultrasound phacoemulsification (PEA) using an ultrasonic phacoemulsification device has recently emerged as a surgical method that causes such postoperative astigmatism. This is a method in which a clouded lens is excised by emulsifying and sucking the lens with ultrasonic waves using a cylindrical ultrasonic tip, and the lens is extracted. The incision has dimensions only for inserting a cylindrical ultrasonic tip, and the incision is about 3 mm to 4 mm, and the lens can be removed.
従って、白内障の際の白濁した水晶体を摘出する手術は、手術後の乱視軽減を図る小さな切開創で手術が可能な状況にはあるが、人眼の水晶体に代わる眼内レンズを移植する眼内レンズ挿入術においては、眼内レンズの光学部が硬質な材料で構成されるという本質的な問題により、眼内レンズを挿入するには光学部直径より幾分か大きな切開寸法、標準的な光学部直径６．０ｍｍに対する切開創としてはおよそ６．５ｍｍ以上の切開創が必要となるため、超音波水晶体乳化吸引術により小さな切開創から白濁した水晶体を摘出しても、眼内レンズを挿入するためには小さな切開創を広げなければならず、大きな切開創が原因となる手術後の乱視という問題は解決されない状況にあった。このような状況に対しては、手術後の乱視軽減を目的として、切開創を小さくするための眼内レンズの改良、即ち短径を切開創の方向に向け挿入する楕円型光学部の眼内レンズや、光学部直径を小さくした小径光学部の眼内レンズが出現したが、光学部が硬質という本質的な問題点は残されたままで、この場合の切開創はおよそ５．５ｍｍ程度とわずか１ｍｍ程度を小さくするにとどまった。 Therefore, surgery to remove the clouded lens during a cataract can be performed with a small incision to reduce astigmatism after the operation.However, an intraocular lens that replaces the lens of the human eye with an intraocular lens is available. Due to the inherent problem that the optic of the intraocular lens is made of a hard material in the lens insertion procedure, the insertion size of the intraocular lens is slightly larger than the diameter of the optic, Since an incision of about 6.5 mm or more is required as an incision for a part diameter of 6.0 mm, an intraocular lens is inserted even if an opaque crystalline lens is extracted from a small incision by ultrasonic phacoemulsification. For this purpose, a small incision had to be expanded, and the problem of postoperative astigmatism caused by a large incision was not solved. For such a situation, for the purpose of reducing astigmatism after surgery, an improvement of an intraocular lens for reducing an incision, that is, an ocular optical section in which the minor axis is inserted toward the incision, Although lenses and small-diameter intraocular lenses with smaller optical diameters have emerged, the essential problem that the optical parts are rigid remains, and the incision wound in this case is only about 5.5 mm. The size was reduced by about 1 mm.
しかし、更に改良が重ねられ、前記の本質的な問題点に対応する新しい眼内レンズが近年用いられるようになってきた。これは、特許文献１に示されているように、眼球に作成した小さな切開創から挿入可能な、少なくとも光学部が所定の記憶特性を有する変形可能な弾性体等を用いた眼内レンズまたは少なくとも光学部が所定の記憶特性を有する弾性体等を用い、光学部を眼内で支える異なった材質等の異種部材からなる支持部を有する変形可能な眼内レンズの出現と、特許文献２乃至６の各公報に示されているように、変形可能な眼内レンズの光学部を圧縮したり、巻いたり、折曲げたり、伸ばしたり、折畳んだりして変形させることで、変形前の大きな形状から小さな形状にした上、眼球に作成した小さな切開創からの挿入を可能とする挿入器具の出現である。これらの変形可能な眼内レンズとその挿入器具により、眼内レンズ挿入術も小さな切開創で可能となり、手術後の乱視を軽減する小さな切開創での白内障手術が水晶体摘出から眼内レンズ挿入にわたり可能となった。 However, with further improvements, new intraocular lenses have been used in recent years that address the essential problems mentioned above. This is, as shown in Patent Document 1, insertable from a small incision made in the eyeball, at least the optical part is an intraocular lens using a deformable elastic body or the like having a predetermined memory characteristic or at least The appearance of a deformable intraocular lens having a support portion made of a different material such as a different material for supporting the optical portion in the eye using an elastic body or the like in which the optical portion has predetermined memory characteristics, and Patent Documents 2 to 6 As shown in each publication, the deformable intraocular lens optical part is compressed, rolled, bent, stretched, or folded and deformed to form a large shape before deformation. Is an advent of an insertion device that allows a small incision made in the eyeball to be inserted into a small incision made in the eyeball. With these deformable intraocular lenses and their insertion instruments, intraocular lens insertion is also possible with a small incision, and cataract surgery with a small incision to reduce postoperative astigmatism can be performed from lens extraction to intraocular lens insertion. It has become possible.
即ち、図２０に示すように変形可能な眼内レンズ１として、所定の記憶特性を有する変形可能な弾性体で形成した円形の光学部２の外周部に、光学部２と異なった材質等異種の可撓性材料で形成した１対の支持部３の基部３ａを埋込み固着し、支持部３の線状の突出部３ｂを湾曲させ、２つの支持部３を対称形に配置し、光学部２の外周部に基部３ａの埋込み部分を補強する突起２ａをそれぞれ設けたものや、図２１に示すように、前記突起２ａをなくした以外、図２０と同様な構成にしたものがあった。また、図２２に示すように、図２０の光学部２と同様な所定の記憶特性を有する材料によって眼内レンズの全体を構成し、円形の光学部２の外周から一体に、光学部２を支える厚さが薄い板状の前，後２つの支持部４を相対向させて突出させたものもあった。そして、図２０，図２１，図２２，図２３に示すものなど、光学部２と支持部３または支持部４とからなり少なくとも光学部２が所定の記憶特性を有する変形可能な眼内レンズ１を大きな形状から小さな形状に２つ折り状にするなど折畳んで変形させ、円筒状などに形成した挿入筒に通して眼球に作成した切開創から眼内レンズを眼内に挿入するには、例えば特許文献７に示された挿入器具などを用いている。 That is, as shown in FIG. 20, as the deformable intraocular lens 1, a different material such as a material different from that of the optical unit 2 is provided on the outer periphery of the circular optical unit 2 formed of a deformable elastic body having predetermined memory characteristics. The base portions 3a of the pair of support portions 3 formed of the flexible material are embedded and fixed, the linear protrusions 3b of the support portions 3 are curved, the two support portions 3 are arranged symmetrically, and the optical portion is formed. Some of them have projections 2a provided on the outer peripheral portion of the base 3a to reinforce the embedded portion of the base 3a, and others have the same configuration as that of FIG. 20 except that the projections 2a are eliminated as shown in FIG. As shown in FIG. 22, the entire intraocular lens is made of a material having the same predetermined memory characteristics as the optical unit 2 in FIG. 20, and the optical unit 2 is integrally formed from the outer periphery of the circular optical unit 2. In some cases, the front and rear two supporting portions 4 are formed in a plate shape having a small supporting thickness and face each other. 20, 21, 22, 23, etc., the deformable intraocular lens 1 including the optical unit 2 and the support unit 3 or the support unit 4 and at least the optical unit 2 having a predetermined memory characteristic. In order to insert the intraocular lens into the eye from an incision made in the eyeball through an insertion tube formed into a cylindrical shape, for example, by folding and deforming such as folding it into two from a large shape to a small shape, for example, The insertion device and the like shown in Patent Document 7 are used.
前記挿入器具を用いて、変形可能な眼内レンズを小さな切開創から挿入するには、挿入器具の包持部材の開閉機構を開いてレンズ設置部に眼内レンズを入れ、開閉機構を閉じることで、レンズ設置部に入れた眼内レンズを変形前の大きな形状から小さい形状に変形させ、器具本体に取り付けた係止部材をレンズ設置部側に移動させて開閉機構を閉状態に係止することにより、設置部内に眼内レンズを設置する。その後、挿入器具の押出し機構の操作によって、押出し軸を前進させ、設置部内の眼内レンズを押出し、設置部の先端側に連なる挿入筒内を通して、切開創に挿入した前記挿入筒の先端から眼内に眼内レンズを挿入させている。 To insert a deformable intraocular lens from a small incision using the insertion device, open the opening / closing mechanism of the holding member of the insertion device, insert the intraocular lens into the lens installation section, and close the opening / closing mechanism. Then, the intraocular lens placed in the lens installation section is deformed from a large shape before deformation to a small shape, and the locking member attached to the instrument body is moved to the lens installation section side to lock the opening / closing mechanism in a closed state. Thereby, the intraocular lens is installed in the installation section. Then, by operating the pushing mechanism of the insertion device, the pushing shaft is advanced, the intraocular lens in the setting section is pushed out, and the eye is inserted into the incision wound through the insertion tube connected to the tip side of the setting section. An intraocular lens is inserted inside.
また、これらの挿入器具が改良され、図１４（ａ），（ｂ）、図１５に示すように、挿入器具の本体１２に設けた包持部材５に開閉機構６を開いた際に内側に形成される設置部７に溝９ａ，９ｂを設けた挿入器具も出現している。前記溝９ａ，９ｂは、変形可能な眼内レンズ１を設置する際に固定するために形成されており、前記溝９ａ，９ｂの挿入筒側は挿入筒１１の内径とほぼ同等の円弧形状に収束している。これらの挿入器具の開閉機構６を閉じ、係止部材１５によって係止した状態を図１６（ａ），（ｂ）、図１７に示す。なお、図１４（ａ），（ｂ）、図１５および図１６（ａ），（ｂ）、図１７において、筒状の本体１２の外周に係止部材１５を、また内方には押出し軸１３を嵌め、包持部材５の設置部７には左，右押し板５ａ，５ｂを開口の上方に突出させると共に、前記係止部材１５にはこれら突出部を挾持して設置部７を閉じる長溝１５ａを形成している。 Further, these insertion tools are improved, and as shown in FIGS. 14 (a), (b) and FIG. 15, when the opening / closing mechanism 6 is opened on the holding member 5 provided on the main body 12 of the insertion tool, An insertion tool in which grooves 9a and 9b are provided in the installation portion 7 to be formed has also appeared. The grooves 9a and 9b are formed for fixing the deformable intraocular lens 1 when the deformable intraocular lens 1 is installed, and the insertion cylinder side of the grooves 9a and 9b has an arc shape substantially equal to the inner diameter of the insertion cylinder 11. Has converged. FIGS. 16 (a), (b) and 17 show a state in which the opening / closing mechanism 6 of these insertion devices is closed and locked by the locking member 15. FIG. 14 (a), (b), FIG. 15 and FIGS. 16 (a), (b), FIG. 17, the locking member 15 is provided on the outer periphery of the cylindrical main body 12, and the pushing shaft is provided inward. 13, the left and right push plates 5a and 5b are projected above the opening in the installation portion 7 of the holding member 5, and the installation portion 7 is closed by holding the projections in the locking member 15. A long groove 15a is formed.
また、近年では前記の白内障治療を目的として行われてきた眼内レンズ挿入技術の応用として、視力補正のみを目的とした眼内へのレンズ挿入が行われている。このような眼内に挿入される視力補正用レンズも眼内レンズと同様に小切開に対応することを目的として、少なくとも光学部が所定の記憶特性を有する変形可能な弾性体を用いたものが出現している。そして、この眼内に挿入される変形可能な視力補正用レンズの小さな切開創からの挿入に際しても前記挿入器具を用いることが可能である。即ち、前記挿入器具は変形可能な眼内レンズや、眼内に挿入される変形可能な視力補正用レンズ等の変形可能な眼内挿入用レンズの眼内への挿入に際して、小さな切開創からの挿入を可能にしている。
しかしながら、前記従来の技術に示すような、少なくとも光学部が所定の記憶特性を有する変形可能な弾性体を用いた変形可能な眼内挿入用レンズ、または少なくとも光学部が所定の記憶特性を有する変形可能な弾性体を用い、光学部を眼内で支える異種部材から成る変形可能な眼内挿入用レンズを、変形前の大きな形状から小さな形状に変形させた上、挿入筒の先端部を介して眼球に作成した小さな切開創から変形可能な眼内挿入用レンズを眼内に挿入する前記の挿入器具には、次のような問題点があった。 However, a deformable intraocular insertion lens using a deformable elastic body having at least an optical portion having a predetermined memory characteristic, or a deformation having at least an optical portion having a predetermined memory characteristic, as shown in the above-mentioned conventional technology. The deformable intraocular insertion lens, which is made of a dissimilar member that supports the optical unit in the eye, is deformed from a large shape before deformation to a small shape using a possible elastic body, and then through the distal end of the insertion tube. The above-mentioned insertion device for inserting a deformable intraocular lens from a small incision made in the eyeball into the eye has the following problems.
前記の挿入器具を用いて、変形可能な眼内挿入用レンズを変形させて小さな切開創から挿入するには、図１４（ａ），（ｂ）、図１５に示すように挿入器具の包持部材５の１個所に設けた開閉機構６を開いてレンズの設置部７の溝９ａ，９ｂに変形可能な眼内挿入用レンズを設置した後、前記開閉機構６を閉じることにより形成される包合部の内部に変形可能な眼内挿入用レンズを変形前の大きな形状から小さい形状に変形させて保持する。そして、挿入器具の本体１２に取り付けた係止部材１５を設置部７側に移動させて開閉機構６を閉状態に係止した後、挿入器具の押出し軸１３を前方へ送ることにより、包合部の内部に設置された変形可能な眼内挿入用レンズが前方へ押し出され、包合部の先端に設けられた眼球に作成した小さな切開創からの挿入が可能な挿入筒１１の先端部の内部を通過して眼内に挿入される。 In order to deform a deformable intraocular insertion lens and insert it from a small incision using the above-mentioned insertion device, as shown in FIGS. 14 (a), (b), and FIG. The opening / closing mechanism 6 provided at one position of the member 5 is opened, and a deformable intraocular lens is installed in the grooves 9a and 9b of the lens installation section 7, and then the opening / closing mechanism 6 is closed. The deformable intraocular lens is deformed from a large shape before deformation to a small shape and held inside the joint. Then, after the locking member 15 attached to the main body 12 of the insertion device is moved to the installation portion 7 side to lock the opening / closing mechanism 6 in the closed state, the pushing shaft 13 of the insertion device is sent forward, thereby enclosing the device. The deformable intraocular insertion lens installed inside the part is pushed forward, and the distal end of the insertion tube 11 that can be inserted from a small incision made in the eyeball provided at the distal end of the wrapping part is formed. It passes through the inside and is inserted into the eye.
しかし、このような挿入器具にあっては、設置部７に形成された溝９ａ，９ｂに対して、開閉機構６が突出した形状となっている。このような設置部７に変形可能な眼内挿入用レンズを設置した場合、図１８に示すように変形可能な眼内レンズ１は開閉機構６に干渉し、湾曲してしまうため、長い時間設置しておくと、変形可能な眼内挿入用レンズが経時とともに変形を来たしてしまうことがあった。 However, in such an insertion device, the opening and closing mechanism 6 has a shape protruding from the grooves 9a and 9b formed in the installation portion 7. When a deformable intraocular lens is installed in such an installation section 7, the deformable intraocular lens 1 interferes with the opening / closing mechanism 6 and is curved as shown in FIG. In this case, the deformable intraocular lens may be deformed over time.
従って、変形可能な眼内挿入用レンズの設置操作は眼内への挿入操作の直前に速やかに行う必要があり、予め設置しておくことは不可能であった。即ち、変形可能な眼内挿入用レンズの挿入に際して、必ず変形可能な眼内挿入用レンズを設置部に設置する操作が必要であった。また、この設置操作に際しては、適切な位置に設置する正確性も要求された。しかし、この操作は眼内挿入用レンズと設置部が非常に小さいため、適切な位置に速やかに正確に設置することが非常に困難であり、この設置操作が正確に行われなかったことにより、眼内挿入用レンズが眼内に正常に挿入されない等の挿入異常が発生することがあるという問題点があった。 Therefore, the operation of setting the deformable intraocular lens needs to be performed immediately before the operation of inserting the lens into the eye, and it is impossible to set the lens in advance. That is, when the deformable intraocular lens is inserted, an operation of always installing the deformable intraocular lens in the installation section is required. In addition, in this installation operation, it is required to have accuracy in installation at an appropriate position. However, since this operation has a very small intraocular insertion lens and installation part, it is very difficult to quickly and accurately install it at an appropriate position, and since this installation operation was not performed accurately, There has been a problem that an abnormal insertion may occur such that the intraocular lens is not normally inserted into the eye.
この発明は、前述した問題点を解決して、変形可能な眼内挿入用レンズを包持部材に設置することが、余裕をもって正確にでき、さらに、包持部材に予め設置しておくことができ、またこの状態で梱包、保管しておくことが可能となり、術者または助手が手術中に前記レンズの設置操作をすることなしに、あるいは包持部材を挿入器具の本体に取り付けるだけで、前記変形可能な眼内挿入用レンズの眼内への挿入が可能になり、簡易な操作性を持つ変形可能な眼内挿入用レンズの挿入器具の提供を目的としている。 The present invention solves the above-mentioned problems, and allows a deformable intraocular insertion lens to be installed on a holding member accurately and with a margin, and further, it is possible to previously install the lens on the holding member. It is also possible to pack and keep in this state, it is possible for the surgeon or assistant to perform the operation of installing the lens during the operation, or just to attach the holding member to the main body of the insertion device, It is an object of the present invention to provide a deformable intraocular insertion lens insertion instrument which allows the deformable intraocular insertion lens to be inserted into the eye and has simple operability.
請求項１の発明は、少なくとも光学部が所定の記憶特性を有する弾性体を用いた変形可能な眼内挿入用レンズ、または少なくとも光学部が所定の記憶特性を有する弾性体を用い、光学部を眼内で支える支持部を設けた変形可能な眼内挿入用レンズを複数の開閉機構により変形前の大きな形状から小さい形状に変形させた上、眼球に作成した小さな切開創から眼内に変形可能な眼内挿入用レンズを挿入する挿入器具である。 According to the first aspect of the present invention, a deformable intraocular insertion lens in which at least the optical unit uses an elastic body having a predetermined memory characteristic, or at least the elastic unit in which the optical unit uses a predetermined memory characteristic, Deformable intraocular insertion lens with support for supporting in the eye is deformed from large shape before deformation to small shape by multiple opening and closing mechanisms, and it can be deformed into the eye from small incision made in the eyeball This is an insertion instrument for inserting a proper intraocular lens.
そして、包持部材には複数の開閉機構を設けることによって、開閉機構を開いた内側に形成される設置部に変形可能な眼内挿入用レンズを設置した際、設置された変形可能な眼内挿入用レンズが開閉機構に干渉しない構成とすることが可能であるため、変形可能な眼内挿入用レンズを湾曲させることなく設置部に設置することが可能であり、変形可能な眼内挿入用レンズが経時とともに変形を来すことなく長時間設置しておくことが可能である。従って、従来は速やかに行う必要のあった設置操作が、請求項１の発明では余裕をもって行うことが可能であるため、変形可能な眼内挿入用レンズを適切な位置に正確に設置することが可能となり、設置操作の正確性を向上させることができる。また、変形可能な眼内挿入用レンズを予め設置しておくことも可能であり、従来は必要であった眼内への挿入操作直前の設置操作を不要とし、容易な操作性を得ることができる。 And, by providing a plurality of opening and closing mechanisms in the holding member, when the deformable intraocular insertion lens is installed in the installation portion formed inside the opening and closing mechanism opened, the installed deformable intraocular lens Since the insertion lens can be configured so as not to interfere with the opening / closing mechanism, the deformable intraocular insertion lens can be installed in the installation section without bending, and the deformable intraocular insertion The lens can be installed for a long time without being deformed over time. Therefore, since the setting operation which had to be performed promptly in the past can be performed with a margin in the invention of claim 1, it is possible to accurately set the deformable intraocular insertion lens at an appropriate position. This makes it possible to improve the accuracy of the installation operation. In addition, it is possible to install a deformable intraocular insertion lens in advance, so that the installation operation immediately before the insertion operation into the eye, which was conventionally required, is unnecessary, and easy operability can be obtained. it can.
請求項２の発明に係る挿入器具は、少なくとも光学部が所定の記憶特性を有する弾性体を用い、光学部を眼内で支える異種部材の支持部を設けた眼内挿入用レンズとした以外、請求項１の挿入器具と同構成であるので、請求項１の発明と同様な作用を得ることができる。 The insertion device according to the invention of claim 2, wherein at least the optical unit uses an elastic body having predetermined memory characteristics, except that the intraocular insertion lens provided with a support of a heterogeneous member that supports the optical unit in the eye, Since it has the same configuration as the insertion device of the first aspect, the same operation as that of the invention of the first aspect can be obtained.
請求項３の発明は、請求項１または２に記載の変形可能な眼内挿入用レンズの挿入器具において、変形可能な眼内挿入用レンズが包持部材に予め設置されているので、この状態で挿入器具を滅菌バッグ、ケース等に入れた後、滅菌処理を施して滅菌包装しておき、必要な時に前記包装を開封するなど、挿入器具を取出して使用することで、衛生的に好ましく、また簡易に使用できる。 According to a third aspect of the present invention, in the insertion device for a deformable intraocular insertion lens according to the first or second aspect, the deformable intraocular insertion lens is pre-installed on the holding member. After putting the insertion device in a sterile bag, case, etc., sterilize it and perform sterile packaging, open the packaging when necessary, and take out and use the insertion device. It can be used easily.
請求項４の発明は、請求項３で達せられる効果を、請求項１に示されている複数の開閉機構に限定せずに変形可能な眼内挿入用レンズとこのレンズの挿入器具の一部である包持部材との係合関係について記述したもので、同様な効果を得られるものである。 According to a fourth aspect of the present invention, the effect achieved by the third aspect is not limited to the plurality of opening / closing mechanisms described in the first aspect, and the intraocular insertion lens is deformable and a part of the lens insertion device. This describes the engagement relationship with the holding member, and the same effect can be obtained.
請求項５の発明は、請求項４に記載されている変形可能な眼内挿入用レンズの挿入器具と、変形可能な眼内挿入用レンズとの係合関係をより具体的に表わしたものである。 The invention according to claim 5 more specifically shows the engagement relationship between the deformable intraocular insertion lens described in claim 4 and the deformable intraocular insertion lens. is there.
請求項６の発明は、変形可能な眼内挿入用レンズを予め設置した包持部材と眼内挿入用レンズの挿入器具の本体とが別構成であり、変形可能な眼内挿入用レンズの挿入前に両者を係合させることで、設置操作を不要にして簡便な操作性の眼内挿入用レンズの挿入器具を提供するとともに、減菌、梱包等を別にすることができ、例えば、変形可能な眼内挿入用レンズを予め設置した包持部材は一度限りの使用として、眼内挿入用レンズの挿入器具本体は再度減菌して使用するという新たな使用法を可能にしたものである。 According to a sixth aspect of the present invention, the holding member in which the deformable intraocular lens is installed in advance and the main body of the instrument for inserting the intraocular lens have different configurations, and the insertion of the deformable intraocular lens is performed. By engaging the two in advance, it is possible to provide an easy-to-operate intraocular lens insertion device that does not require an installation operation, and sterilization, packaging, etc. can be separated, for example, it is deformable The holding member in which the lens for intraocular insertion is installed in advance is a one-time use, and the insertion device body of the lens for intraocular insertion is sterilized again and used again.
以上説明したとおり、請求項１の発明は、少なくとも光学部が所定の記憶特性を有する弾性体を用いた変形可能な眼内挿入用レンズ、または少なくとも光学部が所定の記憶特性を有する弾性体を用い、光学部を眼内で支える支持部を設けた変形可能な眼内挿入用レンズを複数の開閉機構を有する包持部材により変形前の大きな形状から、小さい形状に変形させた上、眼球に作成した小さな切開創から眼内に変形可能な眼内挿入用レンズを挿入する挿入器具であり、請求項２の発明に係わる挿入器具は、少なくとも光学部が所定の記憶特性を有する弾性体を用い、光学部を眼内で支える異種部材の支持部を設けた眼内挿入用レンズにした以外、請求項１の挿入器具と同様であるので、請求項１，２の発明は、次のような効果が得られる。 As described above, the first aspect of the present invention relates to a deformable intraocular insertion lens in which at least the optical unit uses an elastic body having a predetermined memory characteristic, or an elastic body in which at least the optical unit has a predetermined memory characteristic. Using a deformable intraocular insertion lens provided with a support that supports the optical unit in the eye from a large shape before deformation to a small shape by a holding member with multiple opening and closing mechanisms, An insertion device for inserting a deformable intraocular lens into the eye from a small incision made, the insertion device according to the second aspect of the present invention uses an elastic body having at least an optical unit having a predetermined memory characteristic. Since the insertion device is the same as the insertion device of claim 1 except that the lens is an intraocular insertion lens provided with a support portion of a heterogeneous member that supports the optical unit in the eye, the invention of claims 1 and 2 is as follows. The effect is obtained.
即ち、請求項１，２の発明による変形可能な眼内挿入用レンズの挿入器具は、複数の開閉機構を開いた内側に形成される設置部に変形可能な眼内挿入用レンズを設置した際、設置された変形可能な眼内挿入用レンズが開閉機構に干渉しない構成とすることが可能であるため、変形可能な眼内挿入用レンズを湾曲させることなく設置部に設置することが可能であり、変形可能な眼内挿入用レンズが経時と共に変形を来すことなく長時間設置しておくことが可能である。 That is, the deformable intraocular insertion lens insertion device according to the first and second aspects of the present invention is configured such that when the deformable intraocular insertion lens is installed in an installation portion formed inside a plurality of open / close mechanisms opened. Since the installed deformable intraocular insertion lens can be configured not to interfere with the opening / closing mechanism, the deformable intraocular insertion lens can be installed in the installation section without bending. In addition, the deformable intraocular lens can be installed for a long time without deforming over time.
従って、従来は速やかに行う必要のあった設置操作が、請求項１，２の発明では余裕をもって行うことが可能であるため、変形可能な眼内挿入用レンズを適切な位置に正確に設置することが可能となり、設置操作の正確性を向上させることができる。また、変形可能な眼内挿入用レンズを予め設置しておくことも可能であり、従来は必要であった眼内への挿入操作直前の設置操作を不要とし、容易な操作性を得ることができる。 Therefore, since the setting operation which had to be performed promptly in the past can be performed with a margin in the inventions of claims 1 and 2, the deformable intraocular insertion lens is accurately set at an appropriate position. This makes it possible to improve the accuracy of the installation operation. In addition, it is possible to install a deformable intraocular insertion lens in advance, so that the installation operation immediately before the insertion operation into the eye, which was conventionally required, is unnecessary, and easy operability can be obtained. it can.
請求項３の発明は、請求項１または２に記載の変形可能な眼内挿入用レンズの挿入器具において、変形可能な眼内挿入用レンズが予め設置されているので、この状態で前記挿入器具を滅菌バッグ、ケース等に入れた後、滅菌処理を施して滅菌包装しておき、必要なときに前記包装を開封するなど挿入器具を取出して使用することで、衛生的に好ましく、また、簡易に使用できる。 According to a third aspect of the present invention, in the insertion device for a deformable intraocular insertion lens according to the first or second aspect, since the deformable intraocular insertion lens is installed in advance, the insertion device is in this state. After being put in a sterile bag, case, etc., it is subjected to a sterilization treatment and sterilized and packaged, and when necessary, an insertion instrument such as opening the package is taken out and used, which is hygienically preferable and simple. Can be used for
請求項４の発明は、請求項３で達せられる効果を、請求項１に示される複数の開閉機構に限定せずに変形可能な眼内挿入用レンズと挿入器具の一部である包持部材との係合関係により記述したもので、請求項３と同様な効果を得られる。 According to a fourth aspect of the present invention, the effect achieved by the third aspect is not limited to the plurality of opening / closing mechanisms described in the first aspect, but the deformable intraocular insertion lens and a holding member that is a part of an insertion device. The same effect as that of the third aspect can be obtained.
請求項５の発明は、請求項４に記載される変形可能な眼内挿入用レンズの挿入器具と、変形可能な眼内挿入用レンズとの係合関係をより具体的に表わしたものである。 The invention of claim 5 more specifically shows the engagement relationship between the deformable intraocular insertion lens insertion device described in claim 4 and the deformable intraocular insertion lens. .
請求項６の発明は、変形可能な眼内挿入用レンズの挿入器具を予め設置した包持部材と眼内挿入用レンズの挿入器具の本体とが別構成であり、変形可能な眼内挿入用レンズの挿入前に両者を係合させることで、設置操作を不要して簡便な操作性の眼内挿入用レンズの挿入器具を提供するとともに、滅菌、梱包等を別にすることができ、例えば、変形可能な眼内挿入用レンズを予め設置した包持部材は一度限りの使用とし、眼内挿入用レンズの挿入器具本体は再度滅菌して使用するという新たな使用法を提供することが可能になるものである。 According to the invention of claim 6, the holding member in which the deformable intraocular lens insertion device is installed in advance and the main body of the intraocular lens insertion device are different from each other. By engaging the two before inserting the lens, it is possible to provide an easy-to-operate intraocular lens insertion device that does not require an installation operation, and sterilization, packaging, etc. can be separated, for example, It is possible to provide a new use method in which a holding member in which a deformable intraocular insertion lens is pre-installed is used only once, and the main body of the insertion device of the intraocular insertion lens is sterilized again and used. It becomes.
この発明の第１実施形態に係る変形可能な眼内挿入用レンズの挿入器具は、図１〜４の各図に示すように、２個所に開閉機構を有し、変形可能な眼内挿入用レンズが予め設置されている挿入器具をよく表わしている。即ち、図１〜４において、１は設置部に設置されている白内障治療用の変形可能な眼内レンズ、５は変形可能な眼内挿入用レンズの挿入器具の包持部材、６ａ，６ｂは包持部材５に設けられた開閉機構、７は包持部材５の開閉機構６ａ，６ｂを開いた際に形成される変形可能な眼内挿入用レンズの設置部、８は開閉機構６ａ，６ｂを閉じ、且つ閉状態に係止するためのホルダ、９ａ，９ｂは設置部７の内側に相対するように形成された溝、１０は変形可能な眼内レンズ１の設置に際して、開閉機構６ａ，６ｂを開状態に固定するための固定部材、１１は折畳まれた変形可能な眼内挿入用レンズを眼球に作成された小さな切開創を通して眼内に挿入するための挿入筒、１２は挿入器具の本体、１３は変形可能な眼内挿入用レンズを押し出すための押出し軸である。 The deformable intraocular lens insertion device according to the first embodiment of the present invention has an opening / closing mechanism at two locations as shown in each of FIGS. This is a good representation of the insertion device with the lens pre-installed. That is, in FIGS. 1 to 4, reference numeral 1 denotes a deformable intraocular lens for treating cataracts, which is installed in an installation unit, 5 denotes a wrapping member of a device for inserting a deformable intraocular insertion lens, and 6 a, 6 b denotes An opening / closing mechanism provided on the holding member 5, 7 is an installation portion of a deformable intraocular lens formed when the opening / closing mechanism 6 a, 6 b of the holding member 5 is opened, and 8 is an opening / closing mechanism 6 a, 6 b For closing and locking in a closed state, 9a and 9b are grooves formed so as to face the inside of the installation portion 7, and 10 is an opening and closing mechanism 6a, A fixing member for fixing 6b in an open state, 11 is an insertion tube for inserting the folded deformable intraocular insertion lens into the eye through a small incision made in the eyeball, and 12 is an insertion device. Body 13 for extruding a deformable intraocular lens Is an extrusion axis.
そして、筒状の本体１２の先端部には、筒状の包持部材５の基部５ａを嵌合固定してあり、包持部材５は、前後方向の中間部に設置部７を設け、設置部７の先端側に先細テーパの挿入筒１１を形成してある。前記設置部７は、横断面半円形の下部上に厚さを薄くしたヒンジからなる左，右開閉機構６ａ，６ｂを対向させ、これらの上側に１／４円弧部を連ね、これらの先端部内側に溝９ａ，９ｂを形成してあり、設置部７が横断面円筒状に閉じるようにしてある。なお、設置部の横断面は、前述の形状に限られることなく、設置部が閉じた状態で、横断面が楕円形や正方形の筒状になるものなど適宜変更でき、先端部内側の溝の横断面形状も適宜変更できる。包持部材５は、弾性があるプラスチックによって構成することが好ましい。 The base 5a of the cylindrical holding member 5 is fitted and fixed to the distal end of the cylindrical main body 12, and the holding member 5 is provided with an installation portion 7 at an intermediate portion in the front-rear direction. A tapered insertion tube 11 is formed on the distal end side of the portion 7. The installation portion 7 has left and right opening / closing mechanisms 6a and 6b formed of thin hinges opposed to a lower portion of a semicircular cross section, and a ４ arc portion is connected to an upper portion thereof, and a tip portion thereof is provided. Grooves 9a and 9b are formed on the inside, and the installation portion 7 is closed in a cylindrical shape in cross section. In addition, the cross section of the installation portion is not limited to the above-described shape, and can be appropriately changed such as a cross section having an elliptical shape or a square cylindrical shape in a state where the installation portion is closed. The cross-sectional shape can be appropriately changed. The holding member 5 is preferably made of an elastic plastic.
また、筒状のホルダ８は、本体１２の先端部外周面に基部側をスライド可能に嵌合させ、前後方向＋−＋中間部の内周面に先細のテーパ部１４を形成してある。さらに、図３等に示すように、ホルダ８は前後方向の中間部の上部に開口８ａを形成し、この開口８ａに対向させて左，右開閉機構６ａ，６ｂより上方の部分が開いた状態で変形可能な眼内レンズ１の辺縁を係合させて、予め設置部７に設置された状態にする。この状態では２個所に開閉機構６ａ，６ｂを設けてあるので、相対する溝９ａ，９ｂに設置された変形可能な眼内レンズ１に開閉機構６ａ，６ｂが干渉しないようにすることができ、このため、変形可能な眼内レンズ１は湾曲することなく、経時による変形が生じないように保持されている。また、開閉機構６ａ，６ｂは固定部材１０によって予め固定しておくことが望ましい。更に、変形可能な眼内レンズ１を変形させる前に、充分な潤滑効果を得るために変形可能な眼内レンズ１下側の包持部材５内側に潤滑剤等を適宜滴下しておくことが望ましい。 The cylindrical holder 8 has a base portion slidably fitted on the outer peripheral surface of the distal end portion of the main body 12 and has a tapered tapered portion 14 formed on the inner peripheral surface at the + / + intermediate portion in the front-rear direction. Further, as shown in FIG. 3 and the like, the holder 8 has an opening 8a formed in the upper part of the middle part in the front-rear direction, and a portion above the left and right opening / closing mechanisms 6a, 6b is opened to face the opening 8a. The edge of the deformable intraocular lens 1 is engaged so as to be installed in the installation section 7 in advance. In this state, since the opening and closing mechanisms 6a and 6b are provided at two places, the opening and closing mechanisms 6a and 6b can be prevented from interfering with the deformable intraocular lens 1 installed in the opposed grooves 9a and 9b. For this reason, the deformable intraocular lens 1 is held so as not to be curved and to be deformed with time. It is desirable that the opening / closing mechanisms 6a and 6b be fixed in advance by the fixing member 10. Further, before the deformable intraocular lens 1 is deformed, a lubricant or the like may be appropriately dropped on the inside of the holding member 5 below the deformable intraocular lens 1 in order to obtain a sufficient lubricating effect. desirable.
次に、ホルダ８を本体１２側にスライドさせ、図５，６，７に示す状態にすることによって、開閉機構６ａ，６ｂの開閉中心から最も離れた部位がホルダ８の内周面に形成されたテーパ部１４に接触し、開閉機構６ａ，６ｂは徐々に閉状態へと導かれる。その後、開閉機構６ａ，６ｂを有する包持部材５は、ホルダ８の最小内径部分に収納され、図８に示すように閉状態に係止される。その結果、変形可能な眼内レンズ１は変形前の大きな形状から小さい形状に変形される。その後、挿入筒１１の先端部を眼球に作成した切開創口に挿入し、押出し軸１３を前進させることによって、変形可能な眼内レンズ１を押出し、設置部７の先端側に連なる挿入筒１１内に通して、挿入筒１１の先端から眼内に変形可能な眼内レンズ１を押し出している。 Next, the holder 8 is slid toward the main body 12 so as to be in the state shown in FIGS. 5, 6, and 7, so that a portion farthest from the opening / closing center of the opening / closing mechanisms 6a and 6b is formed on the inner peripheral surface of the holder 8. The opening and closing mechanisms 6a and 6b are gradually brought into the closed state by contacting the tapered portion 14 that has been made. Thereafter, the holding member 5 having the opening and closing mechanisms 6a and 6b is housed in the minimum inner diameter portion of the holder 8, and is locked in a closed state as shown in FIG. As a result, the deformable intraocular lens 1 is deformed from a large shape before deformation to a small shape. After that, the distal end of the insertion tube 11 is inserted into the incision wound made in the eyeball, and the push-out shaft 13 is advanced to push out the deformable intraocular lens 1, and the inside of the insertion tube 11 connected to the distal end side of the installation portion 7. , The intraocular lens 1 that can be deformed into the eye is pushed out from the distal end of the insertion tube 11.
即ち、変形可能な眼内レンズ１の眼内への挿入にあたって、その変形可能な眼内レンズ１を変形させる際に、変形可能な眼内レンズ１が予め挿入器具の設置部７に設置されているため、これまで必要であった設置操作を行う必要がなく、適時にホルダ８を後退させた後、押出し軸１３を前進させることで、容易で優れた操作性が得られる。 That is, when the deformable intraocular lens 1 is deformed when the deformable intraocular lens 1 is inserted into the eye, the deformable intraocular lens 1 is previously installed in the installation section 7 of the insertion device. Therefore, there is no need to perform the installation operation that has been required so far, and by easily retracting the holder 8 and then moving the extrusion shaft 13 forward, easy and excellent operability can be obtained.
この発明の第２実施形態に係る変形可能な眼内挿入用レンズの挿入器具は、図９、図１０にその断面を示すように、変形可能な眼内挿入用レンズが予め設置されている挿入器具の別の例を表わしている。即ち、図９、図１０において、５は変形可能な眼内挿入用レンズの挿入器具の包持部材、５ａ，５ｂは設置部７の上方に連なる左右押し板、６ａ，６ｂは包持部材５に備えられた開閉機構、７は包持部材５の開閉機構６ａ，６ｂを開いた際に形成される変形可能な眼内挿入用レンズの設置部、１５は開閉機構６ａ，６ｂを閉じ、閉状態に係止する挿入器具の本体とは別部材とした係止部材である。 The insertion device for a deformable intraocular insertion lens according to the second embodiment of the present invention includes an insertion device in which a deformable intraocular insertion lens is pre-installed as shown in a cross section in FIGS. 5 illustrates another example of a device. That is, in FIGS. 9 and 10, reference numeral 5 denotes a holding member of a deformable intraocular insertion lens insertion device, 5 a and 5 b denote left and right push plates connected above the installation portion 7, and 6 a and 6 b denote holding members 5. The opening / closing mechanism 7 is provided with a deformable intraocular lens installation portion formed when the opening / closing mechanism 6a, 6b of the holding member 5 is opened. The opening / closing mechanism 6a, 6b is closed and closed. This is a locking member that is a separate member from the main body of the insertion device that locks in the state.
従って、第２実施形態に係る変形可能な眼内挿入用レンズの挿入器具は、図１４（ａ），（ｂ）、図１５、図１６（ａ），（ｂ）、図１７に示す挿入器具の包持部材５の構成において、従来の開閉機構６が１個所であったものを、包持部材５の２個所に開閉機構６ａ，６ｂを設けた構成とした点で相違している。そして、設置部７の各開閉機構６ａ，６ｂより上方の部分が開いた状態で、例えば白内障治療用の変形可能な眼内レンズ１の辺縁を設置部７の溝９ａ，９ｂに係合させて、前記設置部７の上方に連なる左，右押し板５ａ，５ｂを閉じ、筒状の係止部材１５を前進させてこれに設けた長溝１５ａを前記左右押し板５ａ，５ｂに係合させることで、変形可能な眼内レンズを小さな形状に変形させて保持できる。従って、第１実施形態の場合とほぼ同様に変形可能な眼内挿入用レンズを挿入器具の設置部に予め設置し、前記眼内挿入用レンズを眼内に挿入することが容易にできる。 Therefore, the insertion device for the deformable intraocular lens according to the second embodiment is the insertion device shown in FIGS. 14 (a), (b), 15, 15, 16 (a), (b) and FIG. The structure of the holding member 5 is different from that of the related art in that the opening / closing mechanism 6 is provided in two places of the holding member 5 instead of the conventional one opening / closing mechanism 6. Then, in a state where the portions above the opening / closing mechanisms 6a and 6b of the installation portion 7 are open, for example, the edges of the deformable intraocular lens 1 for cataract treatment are engaged with the grooves 9a and 9b of the installation portion 7. Then, the left and right push plates 5a and 5b connected above the installation portion 7 are closed, the cylindrical locking member 15 is advanced, and the long groove 15a provided therein is engaged with the left and right push plates 5a and 5b. Thereby, the deformable intraocular lens can be deformed and held in a small shape. Therefore, the deformable intraocular lens can be easily installed in the installation portion of the insertion device in advance in a manner substantially similar to the case of the first embodiment, and the intraocular lens can be easily inserted into the eye.
この発明の第３実施形態に係る変形可能な眼内挿入用レンズの挿入器具は、図１１（ａ），（ｂ）に蓋体を外した上視平面図、蓋体の反転平面図、図１２，図１３に縦横断面に示すように、変形可能な眼内挿入用レンズが予め設置されている挿入器具をよく表わしている。即ち、変形可能な眼内レンズ１は、図２３に示すように、所定の記憶特性を有する材料によって全体を構成し、光学部２の外周から一体に光学部２を支える厚さが薄い板状の前，後支持部４および光学部外周縁部４ａを一体に連続させて、光学部３の辺縁の左，右外側に若干突出させてある。 FIGS. 11 (a) and 11 (b) are top plan views of the deformable intraocular lens according to the third embodiment of the present invention with the lid removed, and FIGS. As shown in the vertical and horizontal cross-sections in FIGS. 12 and 13, an insertion device in which a deformable intraocular lens is pre-installed is well illustrated. That is, as shown in FIG. 23, the deformable intraocular lens 1 is entirely made of a material having a predetermined memory characteristic, and has a thin plate shape that supports the optical unit 2 integrally from the outer periphery of the optical unit 2. The front and rear support portions 4 and the outer peripheral edge portion 4a of the optical portion are continuously formed integrally and slightly protruded to the left and right outside of the edge of the optical portion 3.
また、５は変形可能な眼内挿入用レンズの包持部材であり、包持部材５は基部が挿入器具の本体１２の前端部に嵌合保持され、前記本体１２から突出した中間部には上部に開口５ｄを設けた設置部７が形成され、設置部７の上部に左，右切欠き溝９ａ，９ｂが設けられ、設置部７の先端側には先細テーパの挿入筒１１を形成してある。前記開口５ｄに嵌まる蓋体５ｅが包持部材５の一部として具備され、蓋体５ｅ下部に左，右切欠き溝９ｃ，９ｄが設けられている。さらに、１３は押出し軸であり、先端部に切込み溝１３ａが形成してある。そして、開口５ｄから図２３に示す変形可能な眼内レンズ１を設置部７に入れ、蓋体５ｅを開口５ｄに嵌合保持させることで、眼内レンズ１の光学部２が蓋体５ｅを含む包持部材５と実質的に接触しない状態で、光学部２の外周に延びる前記外周縁部４ａを設置部７の左，右溝９ａ，９ｂと蓋体５ｅの左，右溝９ｃ，９ｄとを対向させて係合させる。 Reference numeral 5 denotes a holding member for the deformable intraocular insertion lens. The holding member 5 has a base fitted and held at the front end of the main body 12 of the insertion device, and has an intermediate portion protruding from the main body 12. An installation part 7 having an opening 5d is formed at the upper part, left and right cutout grooves 9a and 9b are provided at the upper part of the installation part 7, and a tapered insertion tube 11 is formed at the tip side of the installation part 7. It is. A lid 5e fitted into the opening 5d is provided as a part of the holding member 5, and left and right cutout grooves 9c and 9d are provided below the lid 5e. Further, reference numeral 13 denotes an extrusion shaft, and a cutting groove 13a is formed at the tip. Then, the deformable intraocular lens 1 shown in FIG. 23 is inserted into the installation portion 7 from the opening 5d, and the lid 5e is fitted and held in the opening 5d, so that the optical section 2 of the intraocular lens 1 holds the lid 5e. The outer peripheral edge portion 4a extending to the outer periphery of the optical section 2 is substantially left out of contact with the holding member 5 including the left and right grooves 9a and 9b of the installation section 7 and the left and right grooves 9c and 9d of the lid 5e. And are engaged with each other.
この第３実施形態では、蓋体５ｅを開口５ｄから外して分離し、変形可能な眼内レンズ１が上から見えるようにして、前記眼内レンズ１の下側の設置部７と蓋体５ｅ内に潤滑剤を滴下した後、蓋体５ｅを開口５ｄに嵌めて閉じる。その後、押出し軸１３を前進させることで、押出し軸１３の先端部に形成した切込溝１３ａを変形可能な眼内レンズ１の後支持部４に嵌めて眼内レンズ１を前進させ、眼内レンズ１が包持部材５内のテーパ部を通過する際に、変形前の大きな形状から小さな形状に変形されて挿入筒１１の先端近くに達する。この状態で、挿入筒１１の先端部を眼球に作成した切開創口に挿入し、押出し軸１３を更に前進させて、変形可能な眼内レンズ１を眼内に挿入する。そして、第３実施形態の変形可能な眼内レンズの挿入器具の前述した以外の構成、操作などは、第１，第２実施形態の場合と、ほぼ同様であるから、説明を省略する。 In the third embodiment, the lid 5e is detached from the opening 5d and separated, so that the deformable intraocular lens 1 can be seen from above, so that the lower installation portion 7 of the intraocular lens 1 and the lid 5e can be seen. After the lubricant is dropped into the inside, the lid 5e is fitted into the opening 5d and closed. Thereafter, by pushing the pushing shaft 13 forward, the cut groove 13a formed at the tip of the pushing shaft 13 is fitted to the rear support portion 4 of the deformable intraocular lens 1, and the intraocular lens 1 is moved forward. When the lens 1 passes through the tapered portion in the holding member 5, the lens 1 is deformed from a large shape before deformation to a small shape and reaches near the distal end of the insertion tube 11. In this state, the distal end of the insertion tube 11 is inserted into the incision wound made on the eyeball, and the pushing shaft 13 is further advanced to insert the deformable intraocular lens 1 into the eye. The configuration, operation, and the like of the deformable intraocular lens insertion device of the third embodiment other than those described above are almost the same as those of the first and second embodiments, and therefore, description thereof will be omitted.
なお、図示省略したが、包持部材の開口一側に開閉可能に蓋体を連結して設置部を開閉するようにしてもよい。また、図１２に示すように、蓋体５ｅの前，後に係合突起５ｆをそれぞれ突出させると共に、包持部材５の開口５ｄの前，後壁に係合凹部５ｇを形成し、係合突起５ｆと係合凹部５ｇとを係合可能に係合するようにしてもよい。さらに、包持部材５は基部を挿入器具の本体１２に対し、着脱可能にしたり固定したりしてもよい。 Although not shown, a cover may be connected to one side of the opening of the holding member so as to be openable and closable, and the installation portion may be opened and closed. As shown in FIG. 12, the engaging projections 5f are respectively projected before and after the lid 5e, and engaging recesses 5g are formed on the front and rear walls of the holding member 5 in front of the opening 5d. The engagement recess 5g may be engaged with the engagement recess 5g. Further, the holding member 5 may have its base portion detachable or fixed to the main body 12 of the insertion device.
第１実施形態では、左，右２つの開閉機構を閉じ、且つ閉状態への係止をホルダにより行う手段を示したが、第２実施形態のように、開閉機構を手動操作で閉じ、係止部材によって係止する構成等、適宜変更することが可能である。 In the first embodiment, the means for closing the left and right opening / closing mechanisms and holding them in the closed state by the holder has been described. However, as in the second embodiment, the opening / closing mechanism is manually closed and engaged. It is possible to appropriately change the configuration of locking by the stop member and the like.
第１，第２実施形態において、好ましくは、前記包持部材とホルダ、または係止部材は透明な樹脂等で形成すると、変形可能な眼内挿入用レンズの変形後、変形状態の確認が可能であり、安全性が向上する。第１，第２実施形態において、更に好ましくは、前記包持部材が透明な樹脂等で形成されていて、前記ホルダ、または係止部材が金属、もしくは不透明な樹脂等で形成されていた場合、ホルダ、または係止部材に窓を設けることによって、変形可能な眼内挿入用レンズの変形後、変形状態の確認が可能であり、安全性が向上する。 In the first and second embodiments, preferably, when the enclosing member and the holder or the locking member are formed of a transparent resin or the like, it is possible to check the deformed state of the deformable intraocular lens after deformation. And safety is improved. In the first and second embodiments, more preferably, the holding member is formed of a transparent resin or the like, and the holder or the locking member is formed of a metal or an opaque resin. By providing a window in the holder or the locking member, the deformation state of the deformable intraocular lens can be checked after the deformation, and safety is improved.
第１，第２実施形態では２個所に開閉機構を有する形態を示したが、さらに多くの開閉機構を設けることでも同様の効果を得ることができる。第１，第２実施形態では開閉機構を有する包持部材とホルダが本体に一体に組み込まれた構成を示したが、ホルダを独立した部品とすることもできる。 In the first and second embodiments, the embodiment having the opening / closing mechanism at two locations has been described, but the same effect can be obtained by providing more opening / closing mechanisms. In the first and second embodiments, the configuration in which the holding member having the opening / closing mechanism and the holder are integrated into the main body is shown, but the holder may be an independent part.
第３実施形態において、前記包持部材を透明な樹脂等で形成すると、変形可能な眼内挿入用レンズの変形状態の確認が可能であり、安全性が向上する。また、蓋体５ｅのみを透明な樹脂で形成することで設置部７の眼内レンズ１の設置状態の確認が容易となる。 In the third embodiment, if the enclosing member is formed of a transparent resin or the like, the deformation state of the deformable intraocular lens can be checked, and safety is improved. Further, since only the lid 5e is formed of a transparent resin, it is easy to confirm the installation state of the intraocular lens 1 in the installation section 7.
また、全実施形態において、変形可能な眼内挿入用レンズを、レンズ辺縁部のみ包持部材と接触させて係止する形態を示したが、支持部と光学部に角度を有する変形可能な眼内挿入用レンズを設置しておく場合には、レンズ辺縁部を係止させる構造に加えて、包持部材の一部もくしは独立した部材で支持部を支えることで支持部と光学部の角度を保つ構成をとることが可能である。 Further, in all the embodiments, the deformable intraocular insertion lens has been described in which only the lens peripheral portion is brought into contact with and held by the holding member, but the deformable deformable lens having an angle between the support portion and the optical portion is described. When the lens for intraocular insertion is installed, in addition to the structure that locks the periphery of the lens, a part of the holding member or an independent member supports the It is possible to adopt a configuration for maintaining the angle of the section.
なお、この発明において、前記実施形態では変形可能な眼内挿入用レンズを白内障治療用の変形可能な眼内レンズについて述べたが、この発明は、視力補正用レンズ等変形可能な眼内挿入用レンズすべてに前記実施形態と同様に適用できる。また、この発明において、挿入器具の本体と包持部材とが一体化されていても、前記本体と包持部材とが着脱可能にされていてもよく、適宜包持部材、前記本体を再滅菌して繰り返し使用することも可能である。 In the present invention, the deformable intraocular lens for the treatment of cataract has been described in the above embodiment as a deformable intraocular lens. However, the present invention relates to a deformable intraocular lens such as a vision correction lens. The present invention can be applied to all the lenses in the same manner as in the above embodiment. Further, in the present invention, the main body and the holding member of the insertion device may be integrated, or the main body and the holding member may be detachable, and the holding member and the main body may be re-sterilized as appropriate. It can be used repeatedly.
更に、全実施形態において、変形可能な眼内挿入用レンズの眼内への押出しに際して、押出し軸による押出す構成を示したが、変形可能な眼内挿入用レンズを眼内に押し出す手段は適宜変更可能である。 Further, in all the embodiments, when the deformable intraocular insertion lens is pushed into the eye, the configuration in which the deformable intraocular insertion lens is pushed out into the eye is shown. Can be changed.
１ 変形可能な眼内レンズ
２ 光学部
５ 包持部材
７ 設置部
１１ 挿入筒
１２ 挿入器具の本体
１３ 押出し軸
DESCRIPTION OF SYMBOLS 1 Deformable intraocular lens 2 Optical part 5 Holding member 7 Installation part 11 Insertion tube 12 Body of insertion device 13 Push-out shaft
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004178022A JP3665643B2 (en) | 1997-03-10 | 2004-06-16 | Lens insertion device for intraocular insertion |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5513997 | 1997-03-10 | ||
| JP2004178022A JP3665643B2 (en) | 1997-03-10 | 2004-06-16 | Lens insertion device for intraocular insertion |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP00630098A Division JP3665463B2 (en) | 1997-03-07 | 1998-01-16 | Deformable intraocular lens insertion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2004290690A true JP2004290690A (en) | 2004-10-21 |
| JP3665643B2 JP3665643B2 (en) | 2005-06-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004178022A Expired - Lifetime JP3665643B2 (en) | 1997-03-10 | 2004-06-16 | Lens insertion device for intraocular insertion |
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| Country | Link |
|---|---|
| JP (1) | JP3665643B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007089915A (en) * | 2005-09-29 | 2007-04-12 | Nidek Co Ltd | Intraocular lens insertion system |
| US7901414B2 (en) | 2001-12-12 | 2011-03-08 | Ioltechnologie-Production | Cassette and injector for flexible intraocular lens and method for injecting such lenses |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4908977B2 (en) * | 2006-09-05 | 2012-04-04 | 興和株式会社 | Intraocular lens insertion device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4834094A (en) * | 1987-10-07 | 1989-05-30 | Patton Medical Technologies, Inc. | "Canoe" apparatus for inserting intra-ocular lens into the eye |
| US5275604A (en) * | 1992-12-03 | 1994-01-04 | Kabi Pharmacia Ophthalmics, Inc. | Contoured duct apparatus and method for insertion of flexible intraocular lens |
| JPH08507457A (en) * | 1993-03-09 | 1996-08-13 | チロン ビジョン コーポレイション | Preparation device and method for inserting an intraocular lens |
-
2004
- 2004-06-16 JP JP2004178022A patent/JP3665643B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4834094A (en) * | 1987-10-07 | 1989-05-30 | Patton Medical Technologies, Inc. | "Canoe" apparatus for inserting intra-ocular lens into the eye |
| US5275604A (en) * | 1992-12-03 | 1994-01-04 | Kabi Pharmacia Ophthalmics, Inc. | Contoured duct apparatus and method for insertion of flexible intraocular lens |
| JPH08507457A (en) * | 1993-03-09 | 1996-08-13 | チロン ビジョン コーポレイション | Preparation device and method for inserting an intraocular lens |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7901414B2 (en) | 2001-12-12 | 2011-03-08 | Ioltechnologie-Production | Cassette and injector for flexible intraocular lens and method for injecting such lenses |
| JP2007089915A (en) * | 2005-09-29 | 2007-04-12 | Nidek Co Ltd | Intraocular lens insertion system |
| JP4520390B2 (en) * | 2005-09-29 | 2010-08-04 | 株式会社ニデック | Intraocular lens insertion system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3665643B2 (en) | 2005-06-29 |
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