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Excised experimental system for scanning type laser operation of hot forming cornea

An experimental system, laser emission system technology, applied in laser surgery, ophthalmic surgery, ophthalmic treatment, etc., can solve the problems of poor stability and predictability of treatment effect, unpredictability of contraction ring, etc., to reduce asymmetric astigmatism , improve predictability, and achieve cumulative effects

Inactive Publication Date: 2009-04-22
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Although this system reduces the time-consuming of laser keratoplasty, reduces corneal epithelial damage and corneal infection, and improves the accuracy of the action site compared with the early contact beam fiber probe, but because the system is still only able to Produces a limited photocondensation point, so the formed shrinkage ring is still unpredictable
Therefore, there is still the defect that the stability and predictability of the treatment effect are relatively poor.

Method used

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  • Excised experimental system for scanning type laser operation of hot forming cornea

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Embodiment Construction

[0013] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: the present embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and processes are provided, but the protection scope of the present invention is not limited to the following implementations example.

[0014] Such as figure 1 As shown, this embodiment includes: a laser emitting system, a first-level focusing system, a second-level focusing system, an eyeball rotation system, a safety parameter testing system, a treatment effectiveness testing system, and a controller. The positional relationship of each module is that along the direction of the laser beam, the laser emitting system is followed by the first-level focusing system, the second-level focusing system, and the eyeball rotation system; in addition, the input terminals of the safety parameter testing system and the treatm...

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Abstract

A scanning laser in-vitro experiment system for the thermo-shaping operation of cornea is composed of laser emitting system, class-one focusing system, class-two focusing system, eyeball rotating system, safety parameter test system, therapeutic effect test system and controller.

Description

technical field [0001] The invention relates to a system in the technical field of biomedical engineering, in particular to an in vitro experimental system for scanning laser corneal thermoplasty. Background technique [0002] As people's understanding of hyperopia continues to deepen and the number of hyperopic people continues to grow, the treatment of hyperopia is becoming more and more a hot spot in the field of ophthalmology. There are several methods for the treatment of hyperopia, including excimer laser refractive keratotomy, excimer laser in situ keratomileusis, laser thermoplasty, clear lens extraction combined with intraocular lens implantation, automatic lamellar Keratoplasty, Keratotomy, Lasso and more. Among them, laser keratoplasty is the use of laser light to irradiate the cornea, so that the corneal collagen fibers are heated and contracted, and the refractive power of the cornea is changed to treat ametropia. Since laser thermoplasty is a non-invasive tre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F9/008A61F9/01
Inventor 刘易非牛金海
Owner SHANGHAI JIAOTONG UNIV