CN100444815C - 用于治疗青光眼的扩张环 - Google Patents

用于治疗青光眼的扩张环 Download PDF

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CN100444815C
CN100444815C CNB2006100170243A CN200610017024A CN100444815C CN 100444815 C CN100444815 C CN 100444815C CN B2006100170243 A CNB2006100170243 A CN B2006100170243A CN 200610017024 A CN200610017024 A CN 200610017024A CN 100444815 C CN100444815 C CN 100444815C
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ring
tensioner ring
expanding ring
annular groove
treating glaucoma
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CN1887245A (zh
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于洪泉
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Abstract

本发明涉及一种专用于治疗青光眼的扩张环，它是一在外周壁上具有开口向外的环形凹槽的环体，所说环形凹槽的一侧边的外缘直径大于另一侧边的外缘直径，在环形凹槽的底部沿周向布设有数个径向通孔。将本发明扩张环置入前房角中，即可使关闭或变窄的前房角撑开。以恢复至正常状态，使前房角的功能得到恢复，房水得以正常通畅排出。采用该扩张环治疗青光眼具有良好的远期效果。

Description

用于治疗青光眼的扩张环
技术领域
本发明属于眼科医疗器械，具体涉及一种专用于治疗青光眼的扩张环。
背景技术
青光眼是眼科常见病之一，也是主要的致盲眼病，病人常常是因进行性加重而导致失明。长期以来，临床医学上采用药物治疗或手术治疗的惯用手段，因不能恢复组织结构的正常状态，其远期效果均不理想。本申请人的在先专利申请(申请号为：2004100109388)<专用于治疗青光眼的扩张环>的应用，有效地提高了青光眼病的远期治疗效果，但由于该扩张环的两层薄环片在周壁内侧的环带面积较大，置入眼睛前房角中后，两层薄环片与角膜的接触面积较大，角膜因受长时间摩擦容易引起角膜内皮水肿。
发明内容
本发明的目的是提供一种改进结构形状的用于治疗青光眼的扩张环，以克服上述专用于治疗青光眼的扩张环存在的缺点，将更为有效的提高青光眼病的治疗效果。
本发明扩张环是一在外周壁上具有开口向外的环形凹槽的环体，所说环形凹槽与虹膜相贴的一侧边的外缘直径大于与角膜相贴的另一侧边的外缘直径，在环形凹槽的底部沿周向布设有数个径向通孔。
通过角膜切口手术将本发明扩张环置入前房角中，即可使关闭或变窄的前房角撑开。以恢复至正常状态，使前房角的功能得到恢复，房水得以正常通畅排出。
采用本发明扩张环治疗青光眼与目前的惯用治疗方法相比具有显著的优良效果。惯用的药物疗法一是减少房水的分泌，二是通过缩小瞳孔将关闭的前房角有限的拉开；惯用的手术疗法主要是做一个外引流通道，将房水引到结膜下，但外引流通道常因组织粘连而被阻塞。这样的治疗方法均是在破坏了原有正常肌体组织结构的情况下，而实现不能治本的治疗效果，而采用本发明的治疗方法，是通过扩张环的支撑作用使组织结构得以恢复至正常状态。实现组织结构的正常功能，使房水从前房角顺畅流出。从而有效地提高青光眼病的远期治疗效果。并且由于本发明的改进结构，大大的减小了扩张环环体与眼角膜的接触面积，有效的防止排异性炎症的发生。
附图说明
图1是本发明扩张环的主视图；
图2是本发明扩张环的侧视图；
图3是将本发明扩张环置入前房的示意图。
具体实施方式
以下结合附图给出的实施例对本发明结构作进一步说明。
参照图1、2，一种用于治疗青光眼的扩张环是一在外周壁上具有开口向外的环形凹槽(1)的环体，所说环形凹槽(1)与虹膜相贴的一侧边的外缘直径大于与角膜相贴的另一侧边的外缘直径，在环形凹槽(1)的底部沿周向均布10-15个径向通孔(2)。
本扩张环可采用具有弹性的硅凝胶、水凝胶或钛合金材料制做。
参照图3，采用本发明扩张环治疗青光眼，在距角膜6缘1mml2点处之角膜6上做3mm长横隧道形切口，用夹持器将扩张环9从创口送入虹膜8与角膜6间的前房7中(将扩张环外缘直径较大的的一侧与虹膜相贴)，扩张环即自动弹性张开，紧抵在前房角10处，将闭锁或狭窄的前房角10撑开，房水即可从扩张环上的通孔2，经前房角流向房水静脉，实现房水正常循环。因此，可适于治疗各种闭角、开角型青光眼，并具有良好的远期效果，大大降低失明率。

Claims (2)

1.一种专用于治疗青光眼的扩张环，其特征在于，是一在外周壁上具有开口向外的环形凹槽(1)的环体，所说环形凹槽(1)与虹膜相贴的一侧边的外缘直径大于与角膜相贴的另一侧边的外缘直径，在环形凹槽(1)的底部沿周向布设有数个径向通孔(2)。
2.根据权利要求1所述的用于治疗青光眼的扩张环，其特征在于采用具有弹性的硅凝胶、水凝胶或钛合金材料制做。
CNB2006100170243A 2006-07-19 2006-07-19 用于治疗青光眼的扩张环 Expired - Fee Related CN100444815C (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1057586A (zh) * 1990-06-26 1992-01-08 布鲁斯·A·昂格莱德 降低眼内压的装置
US20030088260A1 (en) * 2001-11-08 2003-05-08 Smedley Gregory T. Combined treatment for cataract and glaucoma treatment
EP1310222A2 (en) * 2001-11-08 2003-05-14 Glaukos Corporation Drug-releasing trabecular implant for glaucoma treatment
CN1593360A (zh) * 2004-06-21 2005-03-16 于洪泉 专用于治疗青光眼的扩张环

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1057586A (zh) * 1990-06-26 1992-01-08 布鲁斯·A·昂格莱德 降低眼内压的装置
US20030088260A1 (en) * 2001-11-08 2003-05-08 Smedley Gregory T. Combined treatment for cataract and glaucoma treatment
EP1310222A2 (en) * 2001-11-08 2003-05-14 Glaukos Corporation Drug-releasing trabecular implant for glaucoma treatment
CN1593360A (zh) * 2004-06-21 2005-03-16 于洪泉 专用于治疗青光眼的扩张环

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