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Artificial crystal system with combined detachable replaceable optical part

A technology of intraocular lens and optics, applied in the direction of intraocular lens, eye implant, etc., can solve the problems of secondary surgical injury, capsular bag rupture, secondary intraocular lens implantation or difficulty in replacing intraocular lens, etc., to achieve correction Effect of Refractive Error

Pending Publication Date: 2018-09-14
WENZHOU MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is worth noting that the best location for intraocular lens implantation is in the capsular bag of the lens. However, the capsular bag is prone to fibrosis and adhesion after cataract surgery, which brings great difficulties to the second-stage intraocular lens implantation or replacement of the intraocular lens. , it is easy to cause secondary surgical injury and lead to complications such as capsular bag rupture

Method used

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  • Artificial crystal system with combined detachable replaceable optical part
  • Artificial crystal system with combined detachable replaceable optical part
  • Artificial crystal system with combined detachable replaceable optical part

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Embodiment

[0022] A combined detachable and replaceable optical part intraocular lens system, comprising an external support 1 and a replaceable optical part 2 that can be mounted on the external support 1, and the replaceable optical part 2 is detachably mounted on the external support 1 . A hollow mounting part 3 is provided in the middle of the external bracket 1 , and the replaceable optical part 2 is detachably installed in the mounting part 3 . The replaceable optical part 2 and the external bracket 1 are screwed together.

[0023] The side wall of the mounting part 3 of the external bracket 1 is provided with three limit teeth 31, and three locking grooves 32 are formed between two adjacent limit teeth 31, and the replaceable optical part 2 is provided with three limit blocks 21 adapted to the slots 32, and the limit blocks 21 are snapped into the slots 32 and cooperate with the limit teeth 31 in position. The side of the stop tooth 31 of the installation part 3 is provided with...

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Abstract

The invention provides an artificial crystal system with a combined detachable replaceable optical part. An outer support and the replaceable optical part detachably installed on the outer support arearranged, and the replaceable optical part is in screwed connection with the outer support, so that the purpose of correcting refraction errors of an artificial crystal after operations just by replacing the optical part without replacing the whole system, or the outer support and the replaceable optical part can be implanted in sequence for staging treatment, and then repeated surgical operations are safer, simpler and more convenient.

Description

technical field [0001] The invention specifically relates to the technical field of cataract and intraocular lens, in particular to a combined intraocular lens system with detachable and replaceable optical parts. Background technique [0002] Cataract is an eye disease caused by the loss of transparency of the lens of the human eye. Currently the only cure for this eye disease is surgery to remove the cloudy lens and replace it with an artificial intraocular lens. The power of the intraocular lens to be implanted is calculated by the intraocular lens calculation formula based on the preoperative measurement of the biological parameters of the eye. However, there are often certain errors and uncertainties in this calculation, which leads to refractive error after cataract surgery and affects the vision of the patient. Refractive errors after cataract surgery are especially common in cataract patients with preoperative high myopia, high hyperopia, history of corneal refract...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/16
CPCA61F2/1613
Inventor 陈鼎吴文灿
Owner WENZHOU MEDICAL UNIV