JP2016019607A5 - Intraocular lens insertion device - Google Patents
Intraocular lens insertion device Download PDFInfo
- Publication number
- JP2016019607A5 JP2016019607A5 JP2014144135A JP2014144135A JP2016019607A5 JP 2016019607 A5 JP2016019607 A5 JP 2016019607A5 JP 2014144135 A JP2014144135 A JP 2014144135A JP 2014144135 A JP2014144135 A JP 2014144135A JP 2016019607 A5 JP2016019607 A5 JP 2016019607A5
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- JP
- Japan
- Prior art keywords
- intraocular lens
- optical
- insertion device
- lens insertion
- tapered
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000003780 insertion Methods 0.000 title claims description 11
- 230000003287 optical Effects 0.000 claims description 19
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
Description
本発明は、眼内レンズを眼内に挿入する眼内レンズ挿入器具に関する。 The present invention relates to intraocular lens insertion device for inserting an intraocular lens into the eye.
本開示は、眼内レンズを好適に折り曲げることが可能な眼内レンズ挿入器具を提供することを目的とする。 An object of this indication is to provide the intraocular lens insertion instrument which can bend an intraocular lens suitably.
上記課題を解決するために、本開示に係る眼内レンズ挿入器具は、以下のような構成を備える。
（１） 先端にノズル部を有する筒状の本体部の内部に棒状の押出部材を押出軸に沿って進行させることで光を屈折させる光学面を有する光学部と前記光学部の周囲から外側に延びる一つまたは複数の支持部とを有する変形可能な眼内レンズを眼内に挿入する眼内レンズ挿入器具であって、前記ノズル部より基端側に設けられ、前記ノズル部に向けて先細りとなる内壁を有する先細り部と、前記先細り部より基端側に設けられ、前記押出部材によって押し出される前の前記光学部が設置される光学部設置部と、前記先細り部と前記光学部設置部との間に設けられ、前記光学部設置部から前記先細り部にかけて、前記光学部の幅以上の幅の通路が形成される通路部とを備え、前記通路部のうち前記光学部の一方の光学面に対向する通路壁は、前記押出軸の方向から見た場合に前記押出軸から遠ざかる方向に向けて凹状に歪曲する歪曲部を備え、基端側から先端側に向けて前記歪曲部の歪曲量が増加することを特徴とする。
In order to solve the above-described problem, an intraocular lens insertion device according to the present disclosure has the following configuration.
(1) An optical portion having an optical surface that refracts light by advancing a rod-like push member along the push shaft inside a cylindrical main body portion having a nozzle portion at the tip, and from the periphery of the optical portion to the outside An intraocular lens insertion device for inserting a deformable intraocular lens having one or a plurality of supporting portions extending into the eye, and is provided on a proximal end side with respect to the nozzle portion and tapers toward the nozzle portion. A tapered portion having an inner wall, an optical portion installing portion provided on a proximal end side from the tapered portion, the optical portion before being pushed out by the pushing member, and the tapered portion and the optical portion installing portion. And a passage portion formed with a passage having a width equal to or larger than the width of the optical portion from the optical portion installation portion to the tapered portion, and one of the optical portions of the passage portion. The passage wall facing the surface is When viewed from the direction of the extrusion shaft, it is provided with a distorted portion that distorts in a concave shape toward the direction away from the extrusion shaft, and the amount of distortion of the distorted portion increases from the proximal end side toward the distal end side. .
Claims (3)
前記ノズル部より基端側に設けられ、前記ノズル部に向けて先細りとなる内壁を有する先細り部と、
前記先細り部より基端側に設けられ、前記押出部材によって押し出される前の前記光学部が設置される光学部設置部と、
前記先細り部と前記光学部設置部との間に設けられ、前記光学部設置部から前記先細り部にかけて、前記光学部の幅以上の幅の通路が形成される通路部とを備え、
前記通路部のうち前記光学部の一方の光学面に対向する通路壁は、前記押出軸の方向から見た場合に前記押出軸から遠ざかる方向に向けて凹状に歪曲する歪曲部を備え、基端側から先端側に向けて前記歪曲部の歪曲量が増加することを特徴とする眼内レンズ挿入器具。 An optical part having an optical surface for refracting light by advancing a rod-like pushing member along the extrusion axis inside a cylindrical main body part having a nozzle part at the tip, and one extending outward from the periphery of the optical part Or an intraocular lens insertion device for inserting a deformable intraocular lens having a plurality of supports into the eye,
A tapered portion provided on a proximal end side from the nozzle portion, and having an inner wall tapered toward the nozzle portion;
An optical part installation part provided on the base end side from the tapered part, and the optical part before being pushed out by the pushing member; and
A path part provided between the tapered part and the optical part installation part, and a path part having a width greater than the width of the optical part is formed from the optical part installation part to the tapered part;
The passage wall that faces one optical surface of the optical portion of the passage portion includes a distorted portion that is distorted in a concave shape in a direction away from the extrusion shaft when viewed from the direction of the extrusion shaft. An intraocular lens insertion device, wherein the distortion amount of the distortion portion increases from the side toward the tip side.
前記押出軸の方向から見た場合に、前記通路部の前記通路壁の基端部が平坦に形成されていることを特徴とする眼内レンズ挿入器具。 The intraocular lens insertion device according to claim 1,
The intraocular lens insertion device, wherein a base end portion of the passage wall of the passage portion is formed flat when viewed from the direction of the push-out shaft.
前記先細り部の基端は前記通路部と滑らかに接続される形状で形成されていることを特徴とする眼内レンズ挿入器具。An intraocular lens insertion device, wherein a base end of the tapered portion is formed in a shape that is smoothly connected to the passage portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014144135A JP6464588B2 (en) | 2014-07-14 | 2014-07-14 | Intraocular lens insertion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014144135A JP6464588B2 (en) | 2014-07-14 | 2014-07-14 | Intraocular lens insertion device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2016019607A JP2016019607A (en) | 2016-02-04 |
| JP2016019607A5 true JP2016019607A5 (en) | 2017-08-24 |
| JP6464588B2 JP6464588B2 (en) | 2019-02-06 |
Family
ID=55264896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2014144135A Active JP6464588B2 (en) | 2014-07-14 | 2014-07-14 | Intraocular lens insertion device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6464588B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10849739B2 (en) * | 2018-08-02 | 2020-12-01 | Carl Zeiss Meditec Ag | Ophthalmosurgical injector system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5275604A (en) * | 1992-12-03 | 1994-01-04 | Kabi Pharmacia Ophthalmics, Inc. | Contoured duct apparatus and method for insertion of flexible intraocular lens |
| WO2013168410A1 (en) * | 2012-05-07 | 2013-11-14 | 株式会社メニコン | Intraocular lens insertion tool |
| JP5694489B2 (en) * | 2013-11-25 | 2015-04-01 | 興和株式会社 | Intraocular lens insertion device |
-
2014
- 2014-07-14 JP JP2014144135A patent/JP6464588B2/en active Active
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