CN201029958Y - Non-penetrating one-piece artificial cornea - Google Patents
Non-penetrating one-piece artificial cornea Download PDFInfo
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- CN201029958Y CN201029958Y CNU2007200690784U CN200720069078U CN201029958Y CN 201029958 Y CN201029958 Y CN 201029958Y CN U2007200690784 U CNU2007200690784 U CN U2007200690784U CN 200720069078 U CN200720069078 U CN 200720069078U CN 201029958 Y CN201029958 Y CN 201029958Y
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- 210000004087 cornea Anatomy 0.000 title claims abstract description 24
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- 201000004569 Blindness Diseases 0.000 abstract description 7
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- 208000003556 Dry Eye Syndromes Diseases 0.000 abstract description 5
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- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000002513 implantation Methods 0.000 abstract description 2
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Abstract
本实用新型属于眼科复明技术领域，具体涉及一种人工器官非穿透一体式人工角膜。由前片支架、中心光学镜柱和后片支架组成，其结构如图所示。其中，中心光学镜柱位于前片支架与后片支架之间，前片支架和后片支架均呈圆环形，前片支架的直径小于后片支架的直径，且前片支架、中心光学镜柱、后片支架三者同轴。本实用新型专门针对目前已无临床治疗手段的伴有严重干眼的角膜盲患者，为他们复明提供了技术手段。特殊的植入方式能尽可能的减少对患者角膜组织的再次损伤；能充分利用患者角膜残存的“健康”组织；不需要缝线将人工角膜固定在位。目的是应用于目前已无临床治疗手段的伴有严重干眼的角膜盲患者重建生活视力，提供复明技术。
The utility model belongs to the technical field of vision restoration in ophthalmology, and in particular relates to a non-penetrating integrated artificial cornea of an artificial organ. It consists of a front frame, a central optical column and a rear frame, and its structure is shown in the figure. Wherein, the central optical mirror column is located between the front frame and the rear frame, the front frame and the rear frame are circular, the diameter of the front frame is smaller than the diameter of the rear frame, and the front frame, the central optical mirror The column and the back support are coaxial. The utility model is specially aimed at corneal blindness patients with severe dry eyes who have no clinical treatment means at present, and provides technical means for them to regain sight. The special implantation method can minimize the re-damage to the patient's corneal tissue; can make full use of the remaining "healthy" tissue of the patient's cornea; and does not require sutures to fix the artificial cornea in place. The purpose is to apply to corneal blindness patients with severe dry eyes who have no clinical treatment means to reconstruct living vision and provide vision recovery technology.
Description
技术领域technical field
本实用新型属于眼科复明技术领域，具体涉及一种人工器官非穿透一体式人工角膜。The utility model belongs to the technical field of vision restoration in ophthalmology, and in particular relates to a non-penetrating integrated artificial cornea of an artificial organ.
背景技术Background technique
目前，人工角膜是用高分子材料，或非角膜组织的生物材料，或高分子材料与培养的角膜组织组成的混和材料制成的一种特殊屈光装置，由光学镜柱和周边支架两部分组成，通过手术植入患者角膜以达到增视、治疗或观察眼内组织等目的。At present, the artificial cornea is a special refractive device made of polymer materials, or non-corneal tissue biomaterials, or a mixture of polymer materials and cultured corneal tissue. It consists of two parts: an optical mirror column and a peripheral bracket. It is composed of surgically implanted into the patient's cornea to achieve vision enhancement, treatment or observation of intraocular tissues.
我国目前单眼和双眼角膜盲患者约有400万，其中20％无法通过常规角膜移植手术脱盲，人工角膜是这些患者复明的希望，而对于其中伴有严重干眼的角膜盲患者，目前尚无成功设计的人工角膜应用。At present, there are about 4 million monocular and binocular corneal blindness patients in my country, 20% of whom cannot be relieved of blindness through conventional corneal transplantation. Artificial cornea is the hope for these patients to recover their eyesight. However, there is no success for corneal blindness patients with severe dry eye. Designed artificial corneal applications.
发明内容Contents of the invention
本实用新型的目的在于提供一种结构简单，成本低廉，使用方便的非穿透一体式人工角膜。The purpose of the utility model is to provide a non-penetrating integrated artificial cornea with simple structure, low cost and convenient use.
本实用新型提出的非穿透一体式人工角膜，由前片支架1、中心光学镜柱3和后片支架2组成，其结构如图1所示。其中，中心光学镜柱3位于前片支架1与后片支架2之间，前片支架1和后片支架2均呈圆环形，前片支架1的直径小于后片支架2的直径，且前片支架1、中心光学镜柱3、后片支架2三者同轴。The non-penetrating one-piece artificial cornea proposed by the utility model is composed of a
本实用新型中，后片支架3的周边上均匀分布有小孔4。具体可以将人工角膜分成I型和II型两种，如图2和图3所示。前者指后片支架2的周边上为无孔设计，后者则指后片支架2的周边上均匀分布有小孔4。In the utility model,
本实用新型中，前片支架1、中心光学镜柱3、后片支架2均采用聚甲基丙烯酸甲酯(PMMA)制成。In the utility model, the
本实用新型中，前片支架1和后片支架2的直径、曲率半径可根据需要个体化设计，中心光学镜柱3的屈光度也可根据需要个体化设计。In the present invention, the diameter and radius of curvature of the
本实用新型的使用过程：将本实用新型采用特殊的手术方法植入患者角膜板层囊袋中，前片支架1位于角膜表面，后片支架2植入角膜层间，前、后片间为角膜板层组织。The use process of the utility model: the utility model is implanted in the patient's corneal lamellar pouch by a special operation method, the
本实用新型的有益效果是：本实用新型专门针对目前已无临床治疗手段的伴有严重干眼的角膜盲患者，为他们复明提供了技术手段。特殊的植入方式能尽可能的减少对患者角膜组织的再次损伤；能充分利用患者角膜残存的“健康”组织；不需要缝线将人工角膜固定在位。目的是应用于目前已无临床治疗手段的伴有严重干眼的角膜盲患者重建生活视力，提供复明技术。The beneficial effects of the utility model are: the utility model is specially aimed at corneal blindness patients with severe dry eyes who have no clinical treatment means at present, and provides technical means for them to regain sight. The special implantation method can minimize the re-injury to the patient's corneal tissue; can make full use of the remaining "healthy" tissue of the patient's cornea; and does not require sutures to fix the artificial cornea in place. The purpose is to apply to corneal blindness patients with severe dry eyes who have no clinical treatment at present to rebuild their vision in life and provide vision recovery technology.
附图说明Description of drawings
图1为本实用新型的结构图示。Fig. 1 is a structural illustration of the utility model.
图2为本实用新型I型的俯视图。Fig. 2 is the top view of the utility model I type.
图3为本实用新型II型的俯视图。Fig. 3 is the top view of the utility model II.
图中标号：1为前片支架，2为后片支架，3为中心光学镜柱，4为后片支架上的小孔。Numbers in the figure: 1 is the front frame, 2 is the rear frame, 3 is the central optical lens column, and 4 is the small hole on the rear frame.
具体实施方式Detailed ways
下面结合附图和实施例对本实用新型进一步说明。Below in conjunction with accompanying drawing and embodiment the utility model is further described.
实施例1：本实用新型提出的非穿透一体式人工角膜，由前片支架1、中心光学镜柱3和后片支架2组成，前片支架1的尺寸5mm，中心光学镜柱3的尺寸3mm，后片支架2的尺寸5mm。前片支架1、中心光学镜柱3、后片支架2均由聚甲基丙烯酸甲酯制成，经整体切削抛光方法制备，成品为一体式。其中，中心光学镜柱3位于前片支架1与后片支架2之间，前片支架1和后片支架2均呈圆环形，前片支架1的直径小于后片支架2的直径，且前片支架1、中心光学镜柱3、后片支架2三者同轴。Embodiment 1: The non-penetrating one-piece artificial cornea proposed by the utility model is composed of a
将上述制得的人工角膜用于治疗患者。其方法如下：The artificial cornea prepared above was used to treat patients. The method is as follows:
(1)将患者术眼眼睑用局部碘伏消毒、铺洞巾，滴1％地卡因数滴行表面麻醉。(1) Disinfect the patient's eyelid with iodophor, spread a hole towel, and drip 1% tetracaine for topical anesthesia.
(2)生理盐水冲洗结膜囊，置开睑器，在角膜9点至1点钟方向、角膜缘内约2mm处用刀片作弧形切口，深达1/2～2/3角膜厚度。(2) Flush the conjunctival sac with normal saline, place a lid speculum, and make an arc-shaped incision with a blade at a position about 2 mm inside the limbus from 9 o'clock to 1 o'clock on the cornea, as deep as 1/2 to 2/3 of the corneal thickness.
(3)随后用虹膜恢复器行角膜板层分离，形成适当直径的圆形角膜板层囊袋。(3) Then use the iris restorer to separate the corneal lamellar layer to form a circular corneal lamellar pocket with an appropriate diameter.
(4)用适当直径的环钻在前板层角膜中央作环钻孔。(4) Use a trephine of appropriate diameter to make a trephine hole in the center of the anterior lamellar cornea.
(5)将人工角膜植入角膜囊袋中，后片埋藏于囊袋里，中心镜柱固定于角膜中央的环钻孔，前片位于角膜表面，再次调整人工角膜的位置。(5) The artificial cornea is implanted in the corneal pouch, the posterior piece is buried in the pouch, the central mirror column is fixed to the trephine hole in the center of the cornea, the front piece is placed on the corneal surface, and the position of the artificial cornea is adjusted again.
(6)用10-0的缝线缝合角膜上方的切口2针，并将线结埋藏。(6) Use 10-0 suture to suture the incision above the cornea with 2 stitches, and bury the knot.
(7)球结膜下注射地塞米松1mg及庆大霉素1万单位，并将四环素可的松眼药膏挤入结膜囊。(7) Subconjunctival injection of
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2007200690784U CN201029958Y (en) | 2007-04-19 | 2007-04-19 | Non-penetrating one-piece artificial cornea |
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| CNU2007200690784U CN201029958Y (en) | 2007-04-19 | 2007-04-19 | Non-penetrating one-piece artificial cornea |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102755204A (en) * | 2012-06-27 | 2012-10-31 | 上海生物医学工程研究中心 | Novel assembly type keratoprosthesis |
| CN102920532A (en) * | 2012-07-23 | 2013-02-13 | 于好勇 | Artificial cornea |
| CN103315701A (en) * | 2013-05-16 | 2013-09-25 | 温州医学院附属第二医院 | Aspheric testing bead |
| CN109069265A (en) * | 2016-04-08 | 2018-12-21 | 马萨诸塞眼科耳科诊所 | artificial cornea device, system and method |
| CN113101010A (en) * | 2021-04-14 | 2021-07-13 | 广州宏达医疗设备有限公司 | Artificial cornea in corneal stroma and preparation method thereof |
| WO2023024518A1 (en) * | 2021-08-27 | 2023-03-02 | 广东佳悦美视生物科技有限公司 | Type ii collar-button-type artificial cornea |
| CN118766649A (en) * | 2024-07-30 | 2024-10-15 | 中国人民解放军总医院第三医学中心 | A method for manufacturing an artificial cornea implanted once |
-
2007
- 2007-04-19 CN CNU2007200690784U patent/CN201029958Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102755204A (en) * | 2012-06-27 | 2012-10-31 | 上海生物医学工程研究中心 | Novel assembly type keratoprosthesis |
| CN102755204B (en) * | 2012-06-27 | 2015-06-10 | 上海生物医学工程研究中心 | Novel assembly type keratoprosthesis |
| CN102920532A (en) * | 2012-07-23 | 2013-02-13 | 于好勇 | Artificial cornea |
| CN103315701A (en) * | 2013-05-16 | 2013-09-25 | 温州医学院附属第二医院 | Aspheric testing bead |
| CN109069265A (en) * | 2016-04-08 | 2018-12-21 | 马萨诸塞眼科耳科诊所 | artificial cornea device, system and method |
| US10939993B2 (en) | 2016-04-08 | 2021-03-09 | Massachusetts Eye And Ear Infirmary | Keratoprosthesis apparatuses, systems, and methods |
| CN109069265B (en) * | 2016-04-08 | 2021-08-10 | 马萨诸塞眼科耳科诊所 | Artificial cornea device, system and method |
| CN113101010A (en) * | 2021-04-14 | 2021-07-13 | 广州宏达医疗设备有限公司 | Artificial cornea in corneal stroma and preparation method thereof |
| WO2023024518A1 (en) * | 2021-08-27 | 2023-03-02 | 广东佳悦美视生物科技有限公司 | Type ii collar-button-type artificial cornea |
| CN118766649A (en) * | 2024-07-30 | 2024-10-15 | 中国人民解放军总医院第三医学中心 | A method for manufacturing an artificial cornea implanted once |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080305 Termination date: 20110419 |