CN105658177A - 前囊偏离器脊 - Google Patents
前囊偏离器脊 Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
- A61F2/16—Intraocular lenses
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
- A61F2/16—Intraocular lenses
- A61F2/1613—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus
- A61F2/1624—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus having adjustable focus; power activated variable focus means, e.g. mechanically or electrically by the ciliary muscle or from the outside
- A61F2/1629—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus having adjustable focus; power activated variable focus means, e.g. mechanically or electrically by the ciliary muscle or from the outside for changing longitudinal position, i.e. along the visual axis when implanted
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
- A61F2/16—Intraocular lenses
- A61F2/1613—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus
- A61F2/1624—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus having adjustable focus; power activated variable focus means, e.g. mechanically or electrically by the ciliary muscle or from the outside
- A61F2/1635—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus having adjustable focus; power activated variable focus means, e.g. mechanically or electrically by the ciliary muscle or from the outside for changing shape
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
- A61F2/16—Intraocular lenses
- A61F2002/1681—Intraocular lenses having supporting structure for lens, e.g. haptics
- A61F2002/1689—Intraocular lenses having supporting structure for lens, e.g. haptics having plate-haptics
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
- A61F2/16—Intraocular lenses
- A61F2002/16965—Lens includes ultraviolet absorber
- A61F2002/1699—Additional features not otherwise provided for
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2220/0091—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements connected by a hinged linkage mechanism, e.g. of the single-bar or multi-bar linkage type
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
- A61F2250/0036—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in thickness
Abstract
公开一种调节性人工晶状体(1),其包括板触觉件(4)上的一个或更多个前脊突出物(5、6),一个或更多个前脊突出物(5、6)被设计成在晶状体光学部件(2)的前面提供空间,以便通过伸缩光学部件与相对的板触觉件的连接允许在调节时光学部件向前移动,以为患者提供从远到近的无缝视觉。晶状体被设计成独立的并且防止前囊边沿与后囊在围绕光学部件处的纤维化。
Description
相关申请
与人工晶状体相关的各个申请通过参考以其整体并入本文。这些申请包含:2011年1月31日提交的美国公布No.20110313519;2011年4月22日提交的美国公布No.2011/0313524;2011年5月19日提交的美国公布No.2011/0313525;2011年6月7日提交的美国公布No.2011/0313526;2012年5月15日提交的美国专利No.8523942;2012年5月16日提交的美国公布No.2012/0310344;2013年5月9日提交的美国申请序列No.13/891088;以及2013年6月4日提交的美国申请序列No.13/910076。
技术领域
本公开涉及调节性晶状体。
背景技术
已经有几种人工晶状体模型被设计成允许患者在晶状体摘除之后看到所有距离。最常用的人工晶状体是多焦点晶状体,其中在人工晶状体中的光学部件具有两个或更多个焦距。由于这些晶状体要求患者可视地选择与其视野内的目标适应的晶状体组件焦距,这些晶状体存在很多问题。
因为晶状体具有多个焦距,所以只有一小部分光可以在焦距处被观察到。这导致对比敏感度的损失。
多焦距也引发幻影(dysphotopsias),尤其在眩光和光晕存在的夜晚。因此导致许多多焦点晶状体被外植。
调节性晶状体也已经被开发出来。调节期间睫状肌的收缩导致眼睛的后房、玻璃体腔内的压力增加,并且导致眼睛的前房内的压力减小。这些压力变化已经用于使柔性人工晶状体的光学部件响应于压力变化进行前后移动。这允许患者无缝地看到全距离。但是,这种设计可以被改进。
发明内容
本公开的某些方面涉及柔性的调节性人工晶状体,其具有通过连接构件连接到光学部件的板触觉件(platehaptic)。板触觉件可以包含一个或更多个前脊突出物,其定位在板触觉件上,例如延伸跨过板触觉件的宽度。一个或更多个前脊突出物可以被设计成将晶状体的光学部件与已经植入晶状体的人类晶状体囊袋的前囊分开。在某些方面,板触觉件可以是纵向刚性的。
本公开的某些方面涉及柔性的调节性人工晶状体,其具有通过连接构件连接到光学部件的板触觉件。人工晶状体也可以包含桨状物(paddle)。一个或更多个前脊突出物可以被定位在桨状物上,例如,突出物可以延伸跨过桨状物。一个或更多个前脊突出物可以被设计成将晶状体的光学部件与已经植入晶状体的人类晶状体囊袋的前囊分开。
本公开的某些方面涉及柔性的调节性人工晶状体,其具有通过连接构件连接到光学部件的板触觉件。人工晶状体也可以包含桨状物。一个或更多个前脊突出物可以被定位在板触觉件和桨状物上。一个或更多个前脊突出物可以被设计成将晶状体的光学部件与已经植入晶状体的人类晶状体囊袋的前囊分开。
本公开的某些方面涉及柔性的调节性人工晶状体,其具有通过连接构件连接到光学部件的板触觉件。人工晶状体可以包含邻近连接构件定位的一个或更多个前脊突出物。一个或更多个前脊突出物可以被配置为将人工晶状体的光学部件与已经植入晶状体的人类晶状体囊袋的前囊分开。
本公开的某些方面涉及柔性的调节性人工晶状体,其具有通过连接构件连接到光学部件的板触觉件。人工晶状体可以包含一个或更多个前脊突出物,其被配置成将人工晶状体的光学部件与已经植入晶状体的人类晶状体囊袋的前囊分开。
在上文提到的各方面中的任一方面,人工晶状体可以进一步包含侧向的桨状延伸部。在某些方面,板触觉件和横向的桨状延伸部可以具有前脊突出物,前脊突出物被配置成将前囊与晶状体的光学部件以及其与光学部件的连接分开。在某些方面,前脊突出物可以向前倾斜约5°到30°之间,例如约15°、20°或25°。
在上文提到的各方面中的任一方面,前脊突出物可以延伸跨过板触觉件的大部分近侧宽度。
在上文提到的各方面中的任一方面,前脊突出物可以完全延伸跨过板触觉件。
在上文提到的各方面中的任一方面,板触觉件和光学部件之间的连接可以是柔性可伸缩连杆或扭杆。
在上文提到的各方面中的任一方面,板触觉件和光学部件之间的连接可以是铰链。
在上文提到的各方面中的任一方面,突出物可以提供空间以允许光学部件和其与板触觉件的连接相对于板触觉件的近端和远端向前移动。
在上文提到的各方面中的任一方面,连接构件可以是可伸缩的。
在上文提到的各方面中的任一方面,一个或更多个前脊突出物可以横向延伸跨过板触觉件的宽度。
在上文提到的各方面中的任一方面,一个或更多个前脊突出物可以邻近连接构件定位。
在上文提到的各方面中的任一方面,一个或更多个前脊突出物可以围绕光学部件超过光学部件的圆周的180°。
在上文提到的各方面中的任一方面,一个或更多个前脊突出物可以沿着触觉件最接近光学部件的一端延伸。
在上文提到的各方面中的任一方面,触觉件可以包含一个或更多个前脊突出物。
在上文提到的各方面中的任一方面,桨状物可以包含一个或更多个前脊突出物。
本文公开的任一特征、结构或步骤可以与本文公开的任何其他特征、结构或步骤替换或组合,或者被省略。进一步地,为了概括本公开,本文已经描述本发明的某些方面、优点以及特征。应该理解的是,根据在此公开的本发明中的任何特定实施例,不一定实现任一或全部此类优点。没有本公开的某一方面是必须的或不可缺少的。
附图说明
各种实施例以附图描绘用于说明的目的,并且不应该被解释为限制实施例的范围。进一步地,不同的公开实施例中的各个特征可以被组合以形成可以作为本公开的部分的额外实施例。
图1A和图1B是人工晶状体的不同实施例的透视图。
图2是正视图。
图3是侧视图。
具体实施方式
对于通过重复的屈曲来沿着眼睛的轴线移动光学部件运作的调节性晶状体,柔性材料可以用于形成光学部件。硅酮是一种有用的材料,因为硅酮是可伸缩并且是柔性的,并且能够弯曲或伸缩可能几百万次而不会出现任何损坏。扭杆、连杆、凹槽或铰链可以被放置在邻近光学部件的板触觉件的两侧,作为晶状体设计中的部分以促进光学部件相对于触觉件的外端的移动。(用于晶状体的另一种材料是丙烯酸,但是如果重复地屈曲,丙烯酸可能断裂。)
不幸的是,已经证明很难显示晶状体光学部件的移动,尽管已经通过利用化学与“A”(声学)扫描的结合来刺激和放松睫状肌进行了许多尝试。
这些尝试展示移动的方法已经产生了相矛盾的结果。有些研究展示小的前向移动,而另一些研究展示后向移动或根本没有移动。
此外,尽管当前可用的调节性晶状体的远距视力和中距视力非常好,但是近距视力有时需要低度阅读眼镜以舒适地阅读。
有益的是,该设计为光学部件的移动提供调节性。优选地,这种设计提供了良好的远距视力、中距视力以及近距视力。各种调节性晶状体被描述在以下文件内:2011年1月31日提交的美国公布No.20110313519;2011年4月22日提交的美国公布No.2011/0313524;2011年5月19日提交的美国公布No.2011/0313525;2011年6月7日提交的美国公布No.2011/0313526;2012年5月15日提交的美国专利No.8523942;2012年5月16日提交的美国公布No.2012/0310344;2013年5月9日提交的美国申请序列No.13/891088;以及2013年6月4日提交的美国申请序列No.13/910076,所有这些文献通过参考以其整体并入本文,并且这种晶状体的特征可以被包含在本文描述的各个实施例内。
为了插入人造晶状体,首先移除天然晶状体。在这个晶状体摘除期间,在晶状体囊的前面撕开圆形的孔,并且取出中心核和周围皮质。随后将人工晶状体插入空的囊袋,囊袋被附连到环形的睫状肌。
然后开始愈合(纤维化)。前囊边沿纤维组织形成到后囊以覆盖周边晶状体结构,从而将晶状体固定并且将其居中在囊袋内的合适位置处,其中后囊开始于囊袋的周边或小囊(culdesac)。
调节性晶状体一般具有平坦的单平面的板触觉件设计。板晶状体被制造为单平面设备;但是,距离两个板触觉件的末端的晶状体长度(10.5mm)稍微长于囊袋的直径(10.0mm)。这导致晶状体在被放置到囊袋内时向后呈拱形。
在环形睫状肌收缩情况中的调节时,向后呈拱形的板触觉件晶状体的直径减小,然后被端对端地压缩。
在一些调节性晶状体设计中,板触觉件和光学部件已经被设计成向前摆动,并且增加的后腔(玻璃体腔)压力克服端对端压力,端对端压力会倾向于向后移动光学部件。
在这个调节性晶状体设计中,光学部件和板触觉件之间的连接被配置成在受到板触觉件的端对端压缩时可像橡皮筋一样伸缩,其中伴随的玻璃体腔压力的增加引起光学部件向前移动。
为了使这种动作机构成功,在光学部件和将板触觉件连接到光学部件的组件的前面的空间是期望的,以便允许光学部件向前移动。
因为外科医生撕裂的孔在囊袋的前面,其通常直径为5.0mm并且晶状体光学部件的直径也是5.0mm,囊袋的前组件和后组件纤维化收缩包裹晶状体以覆盖板触觉件与光学部件的连接组件。这防止或限制整个晶状体和光学部件的向前移动。
本文描述的发明的各实施例提供了在光学部件和光学部件与板触觉件的连接的前面的空间,从而使得在调节期间由于这些连接的伸缩而有余地向前移动,其中伴随有眼后房(玻璃体腔)内压力的增加。
根据本发明的各实施例,调节性晶状体包括具有柔性固体光学部件的晶状体,所述柔性固体光学部件被附连到两个或更多个延伸部分,所述延伸部分可以是板触觉件,其能够在与光学部件的接合点处多次屈曲和伸缩。晶状体在板触觉件的远端处具有固定和定中心特征。可以用铰链、扭杆、连杆或凹槽将板触觉件连接到光学部件。响应于眼睛内玻璃体(后房)和前房腔内的压力变化,连接可以促进光学部件相对于延伸部分的近端和远端的向前移动和向后移动。
各实施例包含设计有侧向刚性桨状物的板触觉件的修改,该侧向刚性桨状物与板触觉件的近端一起部分地围绕光学部件超过其圆周的180度。这些修改提供了在光学部件和光学部件与板触觉件的连接的前面的空间以使光学部件向前移动到空间内。因此,调节性人工晶状体的各实施例可以允许在调节时患者自动聚焦并且从远到近无缝地观看。
而且,通过将一个或更多个抬高的脊添加到接近光学部件的板触觉件的前表面和/或部分围绕光学部件的刚性桨状物,提供空间。在板触觉件和/或桨状物上的脊可以一起部分地绕着光学部件延伸跨过超过光学部件圆周的180度。(每个板触觉件上的脊不需要邻接,并且可以通过两个或更多个间隔开的脊提供。)(一个或更多个)脊可以防止光学部件和板触觉件之间的弹性可伸缩连接两侧的前囊部分和后囊部分的融合,以提供光学部件和其与板触觉件的连接的前面的空间,进而允许在调节时光学部件向前移动。
在某些方面,只有一个脊沿着每个板触觉件或桨状物设置。脊可以沿着触觉件最接近光学部件的边缘设置。脊可以延伸跨过小于触觉件的约10%,跨过触觉件宽度的至少约10%和/或小于或等于约20%,跨过至少约20%和/或小于或等于约30%,跨过至少约30%和/或小于或等于约40%,跨过至少约40%和/或小于或等于约50%,跨过至少约50%和/或小于或等于约60%,跨过至少约60%和/或小于或等于约70%,跨过至少约70%和/或小于或等于约80%,跨过至少约80%和/或小于或等于约90%,或者跨过至少约90%和/或小于或等于约100%。在另一些方面,两个、三个、四个或更多个脊可以沿着每个板触觉件和/或桨状物设置。多个脊可以跨过触觉件的宽度均匀或不均匀地间隔开。两个板触觉件上的脊可以一起围绕光学部件超过180度或小于180度。例如,脊一起可以围绕光学部件小于或等于约30度,至少约30度和/或小于或等于约60度,至少约45度和/或小于或等于约75度,至少约60度和/或小于或等于约90度,至少约75度和小于或等于约105度,至少约90度和/或小于或等于约120度,至少约105度和/或小于或等于约135度,至少约120度和/或小于或等于约150度,至少约135度和/或小于或等于约165度,至少约150度和/或小于或等于约180度。在某些方面,多个脊沿着触觉件和/或桨状物设置,每个脊延伸跨过触觉件宽度的小于或等于约10%,小于或等于约5%,小于或等于约2%,或者小于或等于约1%。在某些方面,多个脊沿着触觉件和/或桨状物设置,每个脊延伸跨过触觉件宽度的至少约10%,至少约5%,至少约2%或者至少约1%。在这些值的任何值之内的范围也是可能的。
因此,本发明的各实施例涉及一种调节性晶状体,其具有使前囊部分与光学部件和其与板触觉件的连接偏离的在前部抬高的前囊支撑脊、突出物或凸出物。
因此,本发明的各实施例包含可以提供改进形式的调节性晶状体的特征。
在各实施例中,光学部件是可折叠的柔性的硅酮、丙烯酸或水凝胶材料,并且板触觉件是可以经受多次折叠而不会损坏的可折叠材料,例如硅酮。板触觉件的远端可以具有柔性的T形固定/定中心设备,并且与底架邻接,底架被设计成使板纵向刚性而横向柔性并且被模制到板触觉件内。纵向刚性底架可以与刚性桨状物邻接。
图1-3详细说明了包括人工晶状体1的实施例,人工晶状体1包括柔性固体光学部件2和从光学部件2延伸的部分、板触觉件4,其中光学部件2优选但不必须由硅酮制成,板触觉件4可以是纵向刚性的并且能够横向屈曲而不会损坏并且由例如硅酮和聚酰亚胺形成。在一些实施例中,光学部件2和触觉件4是一件式的,并且是单平面的。此外,一个或更多个触觉件4在其后表面是平坦的并且从光学部件2的相对两侧向远侧延伸。
根据本公开的各实施例,晶状体板触觉件可以具有从其延伸的侧向桨状延伸部(或凸出物)3。在一些实施例中,近侧板触觉件和桨状物部分地围绕光学部件超过光学部件圆周的180度。图1-3中所示的实施例包含跨越靠近光学部件2的板触觉件4部分的前杆状突出物(或凸出物)5,其作为脊沿着触觉件的宽度和/或刚性的桨状侧向延伸部3延伸(参见桨状侧向延伸部上方的突出物部分6)。突出物5也可以转而在侧向桨状延伸部3之上在突出物5的部分6处纵向(例如平行于y轴)延伸。随着前杆状突出物5从靠近光学部件的中间位置侧向地朝向侧向的桨状延伸部3和/或纵向地朝向光学部件2行进,前杆状突出物5的高度增加,并且前杆状突出物5可以在侧向桨状延伸部3上方在部分6处朝光学部件2向前并且向近侧倾斜5°到30°。前杆状突出物5使囊的前部从可伸缩的连接组件8和晶状体光学部件2偏离,以提供允许光学部件在调节期间向前移动的空间。晶状体1优选地包括调节性人工晶状体。光学部件直径的范围可以是约3.5-8.0mm并且可以是4.5-5.0mm。板从尖端到尖端的长度可以从10.0到11.5mm,优选为10.5mm,并且从环件尖端到环件尖端的长度是从10.0到14.0mm,优选为11.5mm。
触觉件4优选地是纵向刚性的板触觉件,其具有包含环件7的弓形边缘。当不受约束时,环件7处于稍微较少弯曲的配置,如图1A和1B和图2所示。包含光学部件2、触觉件4以及扭杆或连杆8的晶状体1优选地由柔性材料形成,诸如硅酮、丙烯酸或水凝胶。环件7、底架9以及桨状物的材料可以不同于触觉件4的材料,并且可以由聚酰亚胺、聚丙烯或钛制成。环件7、底架9以及邻接的桨状物3可以被模制到板触觉件内,使板触觉件4纵向刚性而横向柔性。这可以使晶状体纵向折叠以便晶状体可以通过3.0mm或更小的切口插入眼睛内。扭杆或连杆8形成触觉件4和光学部件2之间的弹性可伸缩连接,从而使得光学部件在受到后囊压力时可以在光学部件/触觉件连接处通过扭杆连接的转动和伸缩而向前移动。
光学部件2的后表面与光学部件侧面的接合处是锐边或接合11,其被设计成减小术后晶状体后囊部分两侧的细胞迁移,并且进而减小后囊浑浊化的发病率和YAG后囊切开术的必要性。
图1A和1B和图2说明了触觉件4、环件7以及从触觉件延伸到光学部件2的连接扭杆8。硬圆块12可以被提供在环件7的末端并且被设计成将环件7固定在眼睛的囊袋内。
移除天然晶状体之后,人工晶状体可以被植入在眼睛的囊袋内。晶状体从纵向折叠的插入设备通过3.0mm或更小的切口被插入眼睛,并且通过由外科医生撕开的进入人类晶状体的前囊部分的通常为圆形的开口放置到囊袋内。触觉件的外端和环件紧密靠近袋小囊,并且环件7在中间被偏离,以使晶状体尺寸适合囊袋并且将晶状体固定到囊袋内。晶状体可以用与上述相同的方式和与本领域内已知的相同方式而被植入。
在各实施例中,晶状体光学部件和板材料是硅酮,并且底架、环件以及桨状物是聚酰亚胺。
如上述,在各实施例中,一个或更多个突出物或凸出物5、6可以被提供,以减少在光学部件2和板触觉件4之间的弹性可伸缩连接两侧的前囊部分和后囊部分的融合量。这类特征可以在光学部件2和其与板触觉件4的连接的前面提供空间,进而允许在调节时光学部件向前移动。突出物5、6可以具有各种形状和尺寸并且可以包括脊。这种抬高部分5、6可以减小前囊部分和后囊部分的有问题融合的发病率,有问题的融合抑制调节时发生的光学部件的移动。
在各实施例中,突出物或脊5、6长度大于高度或宽度。突出物的顶部可以比基部更窄。在一些实施例中,顶点或边缘可以被设置在突出物的顶部。
在图1-3所示的实施例中,例如,突出物5、6延伸晶状体1的大部分横向尺寸(例如平行于x轴)。例如,所示突出物5、6沿触觉件4和桨状物3的侧向方向(例如平行于x轴)延伸基本全部宽度。在所示实施例中,突出物5、6的长度至少为光学部件2的直径,但是突出物可以更短。在一些实施例中,例如图1-3所示的一个或更多个突出物或脊5、6包括多个(例如2、3、4、5、6、7、8、9、10或更多)较短的段或突出物。不同的实施例可以包含一个或更多个较短的段或突出物,其可以靠近连接构件8而被定位,被定位在触觉件上,和/或被定位在桨状物上。在一些示例中,多个较短的段或突出物可以沿晶状体1的横向尺寸布置。在各实施例中,突出物5的形状可以是线性或基本线性的。在图1-3所示的实施例中,突出物5有点像“C”形,其具有沿横向方向(例如平行于x轴)延伸的大多部分和在末端沿正交纵向方向(例如平行于y轴)延伸的部分6。其他的形状也是可能的。此外,如上所述,不是在光学部件2的每侧上有单个突出物5,而是可以使用多个较小的突出物或段(例如2、3、4、5、6、7、8、9、10或更多)。这些突出物或段可以以间距分开。在某些实施例中,单个突出物可以具有多个尖端。
在各实施例中,突出物或凸出物5绕着大部分光学部件2延伸,以减小囊袋的有问题固定的发生率,囊袋的有问题固定抑制调节时光学部件的向前移动。突出物5可以更大或更小并且延伸超过更大或更小的距离。例如,突出物5总共可以绕光学部件2的周长(例如圆周)的至少50%、60%、70%或80%延伸。但是,在一些实施例中,突出物5也可以绕着光学部件2的周长(如,圆周)的约小于100%、90%、80%、70%或60%延伸。这些值的任何组合是可能的,因为这些范围之外的值可用于一些实施例。类似地,突出物5总共可以绕着光学部件2的约至少180°、190°、200°、210°、220°、230°、240°、250°、260°、270°、280°、290°、300°、310°、320°、330°、340°或350°延伸。但是,在一些实施例中,突出物5可以绕着光学部件2的约小于350°、340°、330°、320°、310°、300°、290°、280°、270°、260°、240°、230°、220°、210°延伸。这些值的任何组合是可能的,因为这些范围之外的值可用于一些实施例。如图1-3所示,不邻接的多个突出物5一起绕着大部分光学部件2延伸,并且因此多个突出物可以用于提供上述的参考覆盖范围。例如,每个都在光学部件2的周长(如,圆周)的约30%到40%之间延伸的两个突出物5可以用于覆盖光学部件的约60%到80%之间。如另一示例,每个都绕着光学部件2在120°到150°之间延伸的两个突出物5可以用于覆盖光学部件2的约260°到300°之间。因此,上述范围可以针对两个突出物中的每个突出物而被减小一半,或者如果额外的突出物被使用的话可以减小得更多。然而,如上论述,可以使用绕着光学部件2的更大或更小部分延伸的不同尺寸的突出物,并且也可以使用多于两个突出物。
在不同的实施例中,突出物5可以被布置在光学部件2的相对两侧,如图1-3所示。然而,布置可以变化。而且,例如3、4、5、6、7、8、9、10或更多的多个突出物5可以被布置以减少囊袋在光学部件2和与触觉件4的连接上的有问题固定。
突出物5、6的高度可以在晶状体1的纵向范围(例如平行于y轴的方向)的3%、4%、5%、6%和11%、12%、13%、15%之间。类似地,突出物的高度可以在光学部件2的直径的6%、8%、10%、12%到20%或25%之间。更大或更小的高度也是可能的。
有条件的语言,例如“能”、“能够”、“可能”或“可以”,除非另作具体说明,否则在所用语境内的理解是,一般意在表达某些实施例包含而其他实施例不包含某些特征、元件和/或步骤。因此,这种有条件的语言一般不意在暗示特征、元件和/或步骤被以任何方式要求用于一个或更多个实施例,或者一个或更多个实施例必须包含逻辑以便在有或没有用户输入或提示的情况下判定是否这些特征、元件和/或步骤被包含在任何特定实施例内或将在任何特定实施例内进行。
本文使用的术语“近似”、“约”以及“基本”表示接近仍执行期望功能或实现期望结果的规定量的量。例如,术语“近似”、“约”和“基本”可以指在小于规定量的10%内、在小于规定量的5%内、在小于规定量的1%内、在小于规定量的0.1%内以及在小于规定量的0.01%内的量。
尽管本文已经描述某些实施例和示例,但是本领域技术人员将会认识到本公开中示出和描述的晶状体的许多方面可以被不同地组合和/或修改以形成更进一步的实施例或可接受示例。所有的这种修改和变化意图包含在本公开的范围。各种设计和方法是可能的。本文公开的特征、结构或步骤无一是必须的或不可缺少的。
已经结合附图描述了一些实施例。但是,应该认识到附图不是按比例绘制的。距离、角度等仅仅是示例性的并且没必要表明与实际尺寸的确切关系和所示设备的布局。组件可以被添加、移除和/或重新布置。进一步地,本文公开的与各实施例有关的任何特定特征、方面、方法、性质、特性、品质、属性、元素等等可以用在本文提出的所有其他实施例内。此外,应认识到,本文所述的任何方法可以通过使用适于执行所述步骤的任何设备来实践。
出于本公开的目的,本文公开了某些方面、优点以及新颖特征。应理解的是,根据任何特定实施例不一定会实现全部的所述优点。因此,例如,本领域技术人员将会认识到本公开可以按照实现本文教导的一个优点或一组优点而没必要实现本文所教导或建议的其他优点的方式来实现或执行。
而且,虽然说明性实施例已经在本文描述,但是具有等同元素、修改、省略、组合(例如,各实施例的各方面的组合)、改编和/或改变的任何实施例以及全部实施例的范围将会被本领域技术人员根据本公开想到。对权利要求的限制将基于权利要求中所采用的语言被广义地解释并且不局限于本说明书中描述的或本申请起诉期间描述的示例,示例应被解释为非排他性的。而且,公开的处理和方法的动作可以用任何方式修改,包含重新排序动作和/或插入额外动作和/或删除动作。因此,说明书和示例意在被解释为仅作为说明性的,其具有由权利要求书指示的实际范围和精神以及其等同物的全部范围。
Claims (17)
1.一种柔性的调节性人工晶状体,其包括:
板触觉件,其通过连接构件连接到光学部件;以及
一个或更多个前脊突出物,其邻近所述连接构件定位,所述突出物被配置为将所述人工晶状体的所述光学部件与所述晶状体所植入的人类晶状体囊袋的前囊分开。
2.根据权利要求1所述的柔性的调节性人工晶状体,其进一步包括侧向桨状延伸部。
3.根据权利要求2所述的柔性的调节性人工晶状体,其中所述一个或更多个前脊突出物包括定位在所述板触觉件和所述侧向桨状延伸部上的一个或更多个前脊突出物部分。
4.根据权利要求1-3中任一项权利要求所述的柔性的调节性人工晶状体,其中所述一个或更多个前脊突出物包含向前倾斜15°。
5.根据权利要求1-3中任一项权利要求所述的柔性的调节性人工晶状体,其中所述一个或更多个前脊突出物包含向前倾斜20°。
6.根据权利要求1-3中任一项权利要求所述的柔性的调节性人工晶状体,其中所述一个或更多个前脊突出物包含向前倾斜25°。
7.根据权利要求1-3中任一项权利要求所述的柔性的调节性人工晶状体,其中所述一个或更多个前脊突出物包含在5°和30°之间向前倾斜。
8.根据权利要求1-7中任一项权利要求所述的柔性的调节性人工晶状体,其中所述一个或更多个前脊突出物延伸跨过所述板触觉件的大部分宽度。
9.根据权利要求1-8中任一项权利要求所述的柔性的调节性人工晶状体,其中所述一个或更多个前脊突出物围绕所述光学部件超过所述光学部件的周长的180°。
10.根据权利要求1-9中任一项权利要求所述的柔性的调节性人工晶状体,其中所述板触觉件和所述光学部件之间的所述连接是柔性扭杆或连杆。
11.根据权利要求1-10中任一项权利要求所述的柔性的调节性人工晶状体,其中在所述板触觉件和所述光学部件之间的所述连接是铰链。
12.根据权利要求1-11中任一项权利要求所述的柔性的调节性人工晶状体,其中所述一个或更多个前脊突出物提供空间以允许所述光学部件以及所述光学部件与所述板触觉件的连接相对于所述板触觉件的近端和所述远端向前移动。
13.根据权利要求1-12中任一项权利要求所述的柔性的调节性人工晶状体,其中所述一个或更多个前脊突出物横向延伸跨过所述板触觉件的宽度。
14.根据权利要求1-13中任一项权利要求所述的柔性的调节性人工晶状体,其中所述一个或更多个前脊突出物一起完全延伸跨过所述板触觉件。
15.根据权利要求1所述的柔性的调节性人工晶状体,其中所述一个或更多个前脊突出物包括定位在所述板触觉件上的一个或更多个前脊突出物部分。
16.根据权利要求2所述的柔性的调节性人工晶状体,其中所述一个或更多个前脊突出物包括定位在所述侧向桨状延伸部上的一个或更多个前脊突出物部分。
17.根据权利要求1、15或16中任一项所述的柔性的调节性人工晶状体,其中所述一个或更多个前脊突出物被配置为将所述前囊与所述晶状体的所述光学部件和其与所述光学部件的连接分开。
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WO2015048036A1 (en) | 2015-04-02 |
US20160262870A1 (en) | 2016-09-15 |
JP2016531619A (ja) | 2016-10-13 |
EP3049024A1 (en) | 2016-08-03 |
US9730786B2 (en) | 2017-08-15 |
US9295546B2 (en) | 2016-03-29 |
KR102296048B1 (ko) | 2021-08-30 |
EP3049024B1 (en) | 2021-01-20 |
US20150088254A1 (en) | 2015-03-26 |
KR20160071389A (ko) | 2016-06-21 |
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