CN103313751B - 眼内分流器展开装置 - Google Patents

眼内分流器展开装置 Download PDF

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CN103313751B
CN103313751B CN201180064968.5A CN201180064968A CN103313751B CN 103313751 B CN103313751 B CN 103313751B CN 201180064968 A CN201180064968 A CN 201180064968A CN 103313751 B CN103313751 B CN 103313751B
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CN103313751A (zh
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L·O·罗莫达
C·豪瓦西
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Aquesys Inc
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F9/00Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007Methods or devices for eye surgery
    • A61F9/00781Apparatus for modifying intraocular pressure, e.g. for glaucoma treatment
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F9/00Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/0008Introducing ophthalmic products into the ocular cavity or retaining products therein

Abstract

本发明一般而言涉及用于将眼内分流器在眼睛内展开的装置。在某些实施方式中,本发明的装置包括外壳、至少部分地布置在外壳内的展开机构和联接到展开机构的空心轴,其中所述轴配置为保持眼内分流器,并且其中展开机构的旋转导致分流器展开。

Description

眼内分流器展开装置
相关申请
本申请要求2010年11月15日提交的美国非临时专利申请序列号12/946,645的权益和优先权,其内容以其整体在此通过引用并入。
发明领域
本发明一般而言涉及用于将眼内分流器在眼睛内展开的装置。
发明背景
青光眼是影响数百万人的眼病。青光眼与眼内压增大有关,其源于眼睛排水系统不能从眼睛前房充分地去除房水,或源于眼睛中睫状体引起的房水过度产生。房水积累和所造成的眼内压可对视神经和视网膜造成不可逆性损伤,其可导致不可逆性的视网膜损伤和失明。
青光眼可通过外科手术治疗,其包括将分流器置于眼睛内,以导致在前房和参与房水排水的眼睛的各种结构(例如,施累姆管、巩膜或结膜下间隙)之间产生流体流动途径。这种流体流动途径允许房水离开前房。一般而言,植入分流器的外科手术包括将保持眼内分流器的展开装置插入眼睛中,并且将分流器在眼睛内展开。保持分流器的展开装置经过角膜进入眼睛(内路法(abinternoapproach)),并且推进穿过前房。展开装置推进经过巩膜直至装置的远端部分邻近眼睛的排水结构(drainagestructure)。分流器随后从展开装置展开,在前房和参与房水排水的眼睛的各种结构(例如,施累姆管、巩膜或结膜下间隙)之间产生导管。例如参见Prywes(美国专利号6,007,511)。
与这种外科手术相关的问题是确保分流器的布置在分流器从展开装置的展开期间不变化。用于在眼睛中放置分流器的展开装置一般依赖于多个移动的组件,以便展开分流器。展开装置的组件的移动在展开过程期间变换展开装置在眼睛内的位置,并且因此随着其展开而变换分流器的位置。这种移动导致分流器在眼睛内的不适当布置。
发明内容
本发明一般而言涉及展开装置,其设计为在将眼内分流器从所述装置展开期间使装置的移动最小化,从而确保分流器在眼内的适当布置。
在某些方面中,本发明的展开装置包括外壳、至少部分地布置在外壳内的展开机构和联接到展开机构的空心轴,其中所述轴配置为保持眼内分流器。使用这种装置,展开机构的旋转导致分流器的展开。这种旋转运动转变为轴向移动用于将分流器从所述装置展开。通过利用展开机构的旋转运动,展开装置的轴向移动被最小化,确保分流器在眼内的适当布置。
本发明的其它方面提供了用于展开眼内分流器的装置,其包括外壳;至少部分地布置在外壳内的展开机构,其中展开机构包括二阶段系统;和联接到展开机构的空心轴,其中所述轴配置为保持眼内分流器。
本发明的另一个方面包括用于展开眼内分流器的装置,其包括外壳、至少部分地布置在外壳内的展开机构和在外壳内联接到展开机构的空心轴,其中所述轴配置为保持眼内分流器,其中所述装置包括插入构型和展开构型,并且展开构型包括至少部分地收缩到外壳内的轴的近端部分。在某些实施方式中,插入构型包括布置在外壳内的轴的远端部分和延伸到外壳外的轴的近端部分。
在某些实施方式中,所述轴配置为至少部分地收缩到外壳内。然而,应当理解所述轴可完全收缩到外壳内。在某些实施方式中,所述装置进一步包括眼内分流器。所述分流器可完全地布置在所述装置的空心轴内。可选地,分流器部分地布置在所述装置的空心轴内。
展开机构可包括二阶段系统。在这种实施方式中,第一阶段是推动器组件并且第二阶段是收缩组件。在该实施方式中,展开机构的旋转顺序地接合推动器组件和随后的收缩组件。推动器组件推动分流器,以便将分流器从轴内部分地展开,并且收缩组件将轴从分流器周围收缩,从而将分流器展开。在某些实施方式中,展开机构可额外地包括至少一个限制轴的轴向移动的元件。
展开装置的空心轴可包括带斜面的远端。示例性的空心轴是针状物。本发明的装置可以是完全自动、部分自动或完全手动的。本发明的装置可连接至更大的机器人系统或者可用作独立的手持式展开装置。在具体的实施方式中,所述装置为手持式装置。
本发明的装置可包括指示器,其给操作人员提供关于展开机构状态的反馈。指示器可以是本领域已知的任何类型的指示器,例如目视指示器、声频指示器或触觉指示器。在某些实施方式中,指示器是目视指示器。
本发明的方面还包括用于将眼内分流器在眼睛内展开的方法。这些方法包括使用本文描述的装置将眼内分流器在眼睛内从所述装置展开。一般而言,展开分流器产生从眼睛的前房至较低压力区域的流程。示例性的较低压力区域包括筋膜内间隙(intra-tenon’sspace)、结膜下间隙、巩膜上静脉、脉络膜周隙和施累姆管。在某些实施方式中,较低压力区域是蛛网膜下腔。
本领域已知的各种方法中的任意一种可用于将本发明的装置插入眼睛中。在某些实施方式中,可使用外路法(abexternoapproach)(经结膜进入)或内路法(经角膜进入)将本发明的装置插入眼睛中。
附图简述
图1是显示根据本发明的分流器展开装置的实施方式的示意图。
图2显示图1所示的装置的分解图。
图3A至3D是显示展开装置的展开机构的不同放大图的示意图。
图4A至4C是显示展开机构与展开装置的一部分外壳的相互作用的示意图。
图5显示展开装置的展开机构的截面图。
图6A和6B显示展开前构型中的展开机构的示意图。图6C显示图6A的展开装置的远端部分的放大图。该图显示装载在展开装置的空心轴内的眼内分流器。
图7A和7B显示在将分流器从展开装置展开的第一阶段结束时展开机构的示意图。图7C显示图7A的展开装置的远端部分的放大图。该图显示从展开装置的空心轴内部分展开的眼内分流器。
图8A显示在将分流器从展开装置展开后展开装置的示意图。图8B显示在将分流器从展开装置展开的第二阶段结束时展开机构的示意图。图8C显示在所述轴收缩后展开装置的远端部分的放大图,推动器邻接分流器。图8D显示在分流器展开后展开装置的远端部分的放大图。
图9A和9B显示在眼睛内展开的眼内分流器。分流器的近端部分处在前房中并且分流器的远端部分处在筋膜内间隙中。分流器的中间部分处在巩膜中。
图10描述示例性眼内分流器的示意图。
具体实施方式
现参考图1,其显示根据本发明的分流器展开装置100的实施方式。虽然图1显示手持式手动操作的分流器展开装置,但应当理解本发明的装置可与机器人系统联接并且可以是完全或部分自动的。如图1所示,展开装置100包括大致圆柱形主体或外壳101,然而,外壳101的主体形状可以是圆柱形以外的形状。外壳101可具有人体工程学(ergonomical)形状,允许由操作人员舒适的抓握。外壳101显示具有任选的槽102以便允许由外科医师更容易地抓握。
外壳101显示具有较大的近端部分,其逐渐变细至远端部分。远端部分包括中空套筒105。中空套筒105配置用于插入眼睛中并且延伸到眼睛的前房内。中空套筒在眼睛的前房内是可视的。套筒105为操作人员提供关于分流器的近端部分布置在眼睛前房内的视觉预览。另外地,套筒105提供视觉参照点,其可被操作人员使用以在分流器展开过程期间保持装置100稳定,从而确保分流器在眼睛内的最佳纵向布置。
该套筒可包括在远端的边缘,其在将展开装置100插入人眼睛内时给操作人员提供阻力反馈。当装置100推进穿过眼睛的前房时,中空套筒105将最终接触巩膜,给操作人员提供装置100不需要进一步推进的阻力反馈。套筒105的边缘防止轴104被意外地推得过远通过巩膜。临时的防护器(guard)108配置为围绕套筒105安装并且延伸到套筒105末端之外。在装置的运送期间使用防护器并且保护操作人员免受延伸到套筒105末端之外的空心轴104远端的伤害。在使用装置之前移除该防护器。
外壳101在其近端是打开的,使得一部分展开机构103可从外壳101的近端延伸。外壳101的远端也是打开的,使得至少一部分空心轴104可延伸经过外壳101的远端并且到外壳101的远端之外。外壳101进一步包括缝106,使用装置100的操作人员比如外科医师可通过该缝106观察展开机构103上的指示器107。
外壳101可由适合用于医疗设备的任何材料制成。例如,外壳101可由轻质铝或生物相容性塑料材料制成。这些合适的塑料材料的实例包括聚碳酸酯以及其他聚合树脂比如DELRIN和ULTEM。在某些实施方式中,外壳101可由可被高压灭菌的材料制成,并且因此允许外壳101被重复使用。可选地,装置100可作为一次性使用装置(即,装置是用完即可丢弃的)销售,并且因此外壳的材料不需要是可高压灭菌的材料。
外壳101可由多个组件制成,其连接在一起以形成外壳。图2显示展开装置100的分解图。在该图中,外壳101显示具有三个组件101a、101b和101c。所述组件被设计为拧接在一起以形成外壳101。图2也示出展开机构103。设计外壳101,使得展开机构103安装在组装的外壳101内。设计外壳101,使得展开机构103的组件在外壳101内是可移动的。
图3A至3D显示展开机构103的不同的放大图。展开机构103可由适合用于医疗设备的任何材料制成。例如,展开机构103可由轻质铝或生物相容性塑料材料制成。这些合适的塑料材料的实例包括聚碳酸酯以及其他聚合树脂比如DELRIN和ULTEM。在某些实施方式中,展开机构103可由可被高压灭菌的材料制成,并且因此允许展开机构103被重复使用。可选地,装置100可作为一次性使用装置(即,装置是用完即可丢弃的(一次性的,disposable))销售,并且因此展开机构的材料不需要是可高压灭菌的材料。
展开机构103包括远端部分109和近端部分110。配置展开机构103,使得远端部分109在近端部分110内是可移动的。更具体而言,远端部分109能够部分地收缩到近端部分110内。
在该实施方式中,远端部分109被显示为逐渐变细为与空心轴104的连接。图解该实施方式,使得在外壳101内发生空心轴104和展开机构103的远端部分109之间的连接。在其它实施方式中,可在外壳101外发生空心轴104和展开机构103的远端部分109之间的连接。空心轴104可以是从展开机构103的远端部分109可拆卸的。可选地,空心轴104可永久地联接到展开机构103的远端部分109。
一般而言,空心轴104配置为保持眼内分流器115。示例性的眼内分流器115在图10中示出。其它示例性的眼内分流器在Yu等(美国专利申请号2008/0108933)中示出。一般而言,在一个实施方式中,眼内分流器是圆柱形形状的并且具有外侧圆柱形壁和中空的内部。分流器可具有大约50μm至大约250μm的内径、大约190μm至大约300μm的外径、以及大约0.5mm至大约20mm的长度。因此,空心轴104配置为至少保持这种形状和这种尺寸的分流器。然而,空心轴104可配置为保持与上述那些不同形状和不同尺寸的分流器,并且本发明包括可配置为保持任何形状或尺寸的眼内分流器的轴104。在具体实施方式中,轴具有大约200μm至大约400μm的内径。
轴104可以是任意长度。所述轴的可用长度可以是大约5mm至大约40mm中的任意值,并且在某些实施方式中是15mm。在某些实施方式中,所述轴是直的。在其它实施方式中,轴具有除了直的以外的形状,例如具有沿其长度弯曲的轴或者具有弓形部分的轴。例如在Yu等(美国专利申请号2008/0108933)中显示了示例性形状的轴。
在具体实施方式中,轴包括在轴远端部分的弯曲。在其它实施方式中,轴104的远端是带斜面的或者锐化为一点,以协助刺穿巩膜和将轴104的远端推进通过巩膜。在具体实施方式中,轴104的远端具有双斜面。双斜面在轴104的远端提供角度,使得当轴进入筋膜内间隙时,轴104的远端将与筋膜囊平行,并且将因此不刺穿筋膜囊和进入结膜下间隙。这确保分流器的适当展开,使得分流器115的远端在筋膜内间隙内展开,而不是分流器115的远端在结膜下间隙内展开。改变斜面的角度允许将分流器115布置在比前房压力低的其它区域内,比如结膜下间隙。应当理解植入筋膜内间隙仅是将分流器115置于眼睛内的一个实施方式,并且本发明的装置不限于将分流器置于筋膜内间隙,并且可用于将分流器置于眼睛的许多其它区域内,比如施累姆管、结膜下间隙、巩膜上静脉或脉络膜周隙。
轴104可将分流器至少部分地保持在轴104的中空内部内。在其它实施方式中,分流器被完全地保持在轴104的中空内部内。可选地,空心轴可将分流器保持在轴104的外表面上。在具体实施方式中,分流器被保持在轴104的中空内部内。在某些实施方式中,空心轴是具有中空内部的针状物。被配置为保持眼内分流器的针状物是从TerumoMedicalCorp.(Elkington,Md.)商业可得的。
展开机构的近端部分包括任选的槽116,以允许操作人员更容易地抓握,来更容易地旋转展开机构,其将在下面更详细地讨论。展开机构的近端部分110还包括至少一个指示器,其给操作人员提供关于展开机构状态的反馈。指示器可以是本领域已知的任意类型的指示器,例如目视指示器、声频指示器或触觉指示器。图3A显示展开机构,其具有两个指示器——准备就绪指示器111和展开指示器119。准备就绪指示器111给操作人员提供展开机构处于将眼内分流器从展开装置100展开的构型的反馈。指示器111在该实施方式中显示为绿色椭圆——在该椭圆内具有三角形。展开指示器119给操作人员提供展开机构已经完全接合并且已经将分流器从展开装置100展开的反馈。展开指示器119在该实施方式中显示为黄色椭圆——在该椭圆内具有黑色正方形。指示器位于展开机构上,使得当组装时,指示器111和119通过外壳101中的缝106可见。
近端部分110包括固定部分110b和旋转部分110a。近端部分110包括通道112,其贯穿(run)固定部分110b的部分长度和旋转部分110a的整个长度。通道112配置为与外壳组件101a的内部部分上的突出物117相互作用(图4A和4B)。在组装期间,外壳组件101a上的突出物117与展开机构103的固定部分110b和旋转部分110a上的通道112对齐。展开机构103的近端部分110在外壳组件101a内滑动,直至突出物117位于固定部分110b内(图4C)。组装的突出物117与展开机构103的固定部分110b相互作用,并且防止固定部分110b旋转。在该构型中,旋转部分110a自由地在外壳组件101a内旋转。
返回参考图3A-3D,展开机构103的近端部分110的旋转部分110a还包括通道113a、113b和113c。通道113a包括直的并且垂直于旋转部分110a的长度延伸的第一部分113a1,以及沿旋转部分110a的长度向下朝向展开机构103的近端对角地延伸的第二部分113a2。通道113b包括沿旋转部分110a的长度向下朝向展开机构103的远端对角地延伸的第一部分113b1,以及直的并且垂直于旋转部分110a的长度延伸的第二部分。第一部分113a1沿通道113a过渡到第二部分113a2的点与第一部分113b1沿通道113b过渡到第二部分113b2的点相同。通道113c是直的并且垂直于旋转部分110a的长度延伸。在通道113a、113b和113c的每个内,分别坐落有元件114a、114b和114c。元件114a、114b和114c在通道113a、113b和113c内是可移动的。元件114a、114b和114c还充当限制旋转部分110a移动的制动器,其因此限制轴104的轴向移动。
图5显示展开机构103的截面视图。元件114a连接到展开机构103的远端部分109。元件114a的移动导致展开机构103的远端部分109收缩到展开机构103的近端部分110内。元件114b连接到推动器组件118。推动器组件118延伸经过展开机构103的远端部分109并且延伸到一部分空心轴104中。推动器组件参与将分流器从空心轴104展开。示例性的推动器组件是柱塞。元件114b的移动接合推动器118并且导致推动器118在空心轴104内推进。
现参考图6-8D,其伴随下面关于分流器115从展开装置100展开的讨论。图6A显示展开装置100处于展开前构型。在该构型中,分流器115被装载在空心轴104内(图6C)。如图6C中所示,分流器115仅部分地在轴104内,使得一部分分流器被暴露。然而,分流器115不延伸到轴104的末端之外。在其它实施方式中,分流器115完全布置在空心轴104内。分流器115被装载到空心轴104内,使得分流器邻接空心轴104内的推动器组件118。轴104的远端是带斜面的以协助刺穿眼睛的组织。
另外,在展开前构型中,轴104的一部分延伸到套筒105之外(图6C)。配置展开机构,使得元件114a邻接通道113a的第一部分113a1的远端,并且元件114b邻接通道113b的第一部分113b1的近端(图6B)。在该构型中,准备就绪指示器111通过外壳101的缝106可视,这给操作人员提供展开机构处于将眼内分流器从展开装置100展开的构型的反馈(图6A)。在该构型中,装置100准备插入眼睛中(插入构型或展开前构型)。用于插入和植入分流器的方法在下面进一步详细地讨论。
一旦装置已经被插入眼睛中并且推进到分流器将被展开的位置,分流器115可从装置100展开。展开机构103是二阶段系统。第一阶段是接合推动器组件118,和第二阶段是远端部分109收缩到展开机构103的近端部分110内。展开机构103的近端部分110的旋转部分110a的旋转顺序地接合推动器组件与随后的收缩组件。
在分流器展开的第一阶段中,接合推动器组件,并且推动器将分流器从展开装置部分地展开。在第一阶段期间,展开机构103的近端部分110的旋转部分110a旋转,导致元件114a和114b沿通道113a和113b中的第一部分113a1和113b1移动。由于通道113a的第一部分113a1是直的并且垂直于旋转部分110a的长度延伸,所以旋转部分110a的旋转不引起元件114a的轴向移动。在元件114a没有轴向移动的情况下,远端部分109不收缩到展开机构103的近端部分110内。由于通道113b的第一部分113b1沿旋转部分110a的长度向上朝向展开机构103的远端对角地延伸,所以旋转部分110a的旋转引起元件114b朝向装置远端的轴向移动。元件114b朝向装置远端的轴向移动导致推动器组件118在空心轴104内向前推进。推动器组件118的这种移动导致分流器115从轴104部分地展开。
图7A至7C显示在分流器从展开装置展开的第一阶段结束时展开机构的示意图。如图7A中所示,元件114a和114已经沿通道113a和113b的第一部分113a1和113b1完成横穿。另外,推动器组件118已经在空心轴104内推进(图7B),并且分流器115已经从空心轴104部分地展开(图7C)。如在这些图中所示,一部分分流器115延伸到轴104的末端之外。
在分流器展开的第二阶段中,接合收缩组件并且展开机构的远端部分收缩到展开机构的近端部分内,从而完成分流器从展开装置的展开。在第二阶段期间,展开机构103的近端部分110的旋转部分110a进一步旋转,导致元件114a和114b沿通道113a和113b中的第二部分113a2和113b2移动。由于通道113b的第二部分113a2是直的并且垂直于旋转部分110a的长度延伸,旋转部分110a的旋转不引起元件114b的轴向移动。在元件114b没有轴向移动的情况下,推动器118不进一步推进。由于通道113a的第二部分113a2沿旋转部分110a的长度向下朝向展开机构103的近端对角地延伸,所以旋转部分110a的旋转引起元件114a朝向装置近端的轴向移动。元件114a朝向装置近端的轴向移动导致远端部分109收缩到展开机构103的近端部分110内。远端部分109的收缩导致空心轴104的收缩。由于分流器115邻接推动器组件118,所以分流器在空心轴104从分流器115周围收缩时保持静止(图8C)。轴104几乎完全地收缩到套筒105内。在展开过程的两个阶段期间,套筒105保持静止并且处在固定的位置。
图8A显示在分流器115从装置100展开后装置100的示意图。图8B显示在分流器从展开装置展开的第二阶段结束时展开机构的示意图。如图8B中所示,元件114a和114b已经沿通道113a和113b的第二部分113a2和113b2完成横穿。另外地,远端部分109已经收缩到近端部分110内,因此导致空心轴104收缩到套筒105内。图8D显示在分流器展开后展开装置的远端部分的放大图。该图显示空心轴104没有完全收缩到展开装置100的套筒105内。然而,在某些实施方式中,轴104可完全收缩到套筒105内。
参考图8A,在展开后的构型中,展开的指示器119通过外壳101的缝106可见,给操作人员提供已经完全接合展开机构并且分流器115已经从展开装置100展开的反馈。
本领域已知的各种方法中的任意一种可用于将本发明的装置插入眼睛中。在某些实施方式中,可使用外路法(经结膜进入)或内路法(经角膜进入)将本发明的装置插入眼睛中。
在某些实施方式中,使用内路法将本发明的装置插入眼睛中。例如在Yu等(美国专利号6,544,249和美国专利申请号2008/0108933)和Prywes(美国专利号6,007,511)中显示了用于植入眼内分流器的内路法,其内容均以其整体通过引用在此并入。
本发明的装置可插入眼睛中以便展开分流器,其产生从眼睛前房至眼睛的各种排水结构的流体排水通道。示例性的排水结构包括施累姆管、结膜下间隙、巩膜上静脉、脉络膜周隙或筋膜内间隙。在某些实施方式中,将流体排水到蛛网膜下腔。
在具体实施方式中,将本发明的装置插入眼睛中以将分流器展开,其产生从前房至筋膜内间隙的流体排水通道。在眼睛内,存在被称为结膜的膜,并且结膜下面的区域被称作结膜下间隙。结膜下间隙内是称为筋膜囊的膜。在筋膜囊下面存在将筋膜囊连接到巩膜的筋膜粘连(Tenon'sadhesion)。筋膜囊和巩膜之间筋膜粘连将筋膜囊连接到巩膜的间隙被称为筋膜内间隙。
图9A和9B显示使用本发明的装置放置在眼睛中的眼内分流器,使得分流器形成用于从前房到筋膜内间隙进行流体排出的通道。为了将分流器置于眼睛内,进行植入分流器的外科手术,其包括将保持眼内分流器201的展开装置200插入眼睛202中,并且将至少一部分分流器201在筋膜内间隙208内、结膜下间隙209内和结膜210下面展开。在某些实施方式中,保持分流器201的展开装置200的空心轴206经过角膜203(内路法)进入眼睛202。轴206以所谓的经瞳孔植入物插入(transpupilimplantinsertion)被推进穿过前房204(如虚线描述的)。轴206被推进经过巩膜205,直至轴206的远端部分接近筋膜囊207。
一旦空心轴206的远端部分在筋膜内间隙208内,则分流器201随后从展开装置200的轴206展开,在前房204和筋膜内间隙208之间产生导管,以便允许房水从前房204排出(参见图9A和9B)。
实施方式的组合
如本领域技术人员将理解的,本发明的单个特征可单独地或以任意组合使用。具体而言,考虑上面单独描述的实施方式的一个或多个特征可组合到一个分流器中。
通过引用并入
对于其它文件比如专利、专利申请、专利公开、期刊、书籍、论文、网页内容的参考和引用已经遍及本公开内容进行。所有这些文件出于所有的目的以其全部通过引用在此并入本文。
等价物
在不偏离本发明精神或本质特征的情况下,本发明可以其它特定形式体现。因此前述实施方式在各方面被认为说明而不是限制本文描述的发明。

Claims (14)

1.用于展开眼内分流器的装置,所述装置包括:
外壳;
展开机构,其至少部分地布置在所述外壳内,所述展开机构包括(i)旋转组件,其具有第一通道和第二通道,(ii)推动器组件,其具有处于所述第一通道内的第一元件,和(iii)收缩组件,其具有处于所述第二通道内的第二元件;和
空心轴,其联接到所述展开机构,其中所述轴配置为保持眼内分流器;
其中所述旋转组件的旋转使得所述第一元件远端轴向移动,从而在远端轴向方向上推动所述推动器组件以部分地从所述轴内推进所述分流器,并且
其中所述旋转组件的进一步旋转使得所述第二元件近端轴向移动,从而在近端轴向方向上推动所述收缩组件以将所述轴从所述分流器周围收缩,从而暴露所述分流器。
2.根据权利要求1所述的装置,其中所述轴配置为至少部分地收缩到所述外壳内。
3.根据权利要求2所述的装置,其中所述轴完全收缩到所述外壳内。
4.根据权利要求1所述的装置,进一步包括至少部分地布置在所述轴内的眼内分流器。
5.根据权利要求1所述的装置,其中所述展开机构进一步包括限制所述轴的轴向移动的至少一个元件。
6.根据权利要求1所述的装置,其中所述轴的远端是带斜面的。
7.根据权利要求1所述的装置,其中所述空心轴是针状物。
8.根据权利要求1所述的装置,进一步包括在所述外壳和所述展开机构上形成的指示器,所述指示器给操作人员提供关于所述展开机构的状态的反馈。
9.根据权利要求8所述的装置,其中所述指示器包括缝,所述缝在所述外壳中形成并且沿所述展开机构延伸,用于提供所述展开机构的状态的目视指示。
10.根据权利要求1所述的装置,其中所述外壳的远端部分包括套筒并且所述空心轴在所述套筒内是可移动的。
11.根据权利要求10所述的装置,其中所述套筒的远端包括停止边缘。
12.根据权利要求1所述的装置,其中所述第一通道包括相对于所述旋转组件的纵向轴线对角地延伸的第一部分和相对于所述纵向轴线垂直延伸的第二部分。
13.根据权利要求1所述的装置,其中所述第二通道包括相对于所述旋转组件的纵向轴线垂直延伸的第一部分和相对于所述纵向轴线对角地延伸的第二部分。
14.根据权利要求5所述的装置,其中所述旋转组件包含第三通道,所述第三通道相对于所述旋转组件的纵向轴线垂直延伸,其中所述至少一个元件处于所述第三通道内,并且在所述旋转组件旋转时,所述至少一个元件在所述第三通道内在所述第三通道的第一端和第二端之间可移动。
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