Corneal bandage lens and preparation method thereof

A cornea and bandage technology, applied in medical science, laser surgery, prosthesis, etc., can solve the problems of ocular surface damage, loss of surgical field, uneven coating of corneal surface, to improve efficiency, expand the scope of clinical applications, The effect of reducing the burden on assistants

Pending Publication Date: 2020-08-04
杨晓岗
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The wide application of non-contact wide-angle lenses in modern minimally invasive vitreous surgery has significantly improved the efficiency and postoperative effect of vitreous surgery. However, due to the inherent disadvantages compared with contact wide-angle lenses: 1. The cornea is exposed to the air and is easy to dry. Affect the clarity of the surgical field of view; 2. During the operation, the assistant needs to continuously rinse the corneal surface with balanced salt solution (BSS solution), and the average flushing interval is 10 seconds to 20 seconds, so as to maintain the clarity of the surgical field of v...

Method used

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  • Corneal bandage lens and preparation method thereof
  • Corneal bandage lens and preparation method thereof
  • Corneal bandage lens and preparation method thereof

Examples

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Embodiment 1

[0044] See figure 1 . The embodiment of the present invention provides a preparation method of a corneal bandage mirror for vitreous surgery, comprising the following steps:

[0045] S110. Obtain the corneal bandage lens to be processed;

[0046] Specifically, the corneal bandage lens to be processed can be purchased directly. The corneal bandage mirror adopts a disposable aseptic package, which is discarded immediately after use and cannot be sterilized for reuse.

[0047] S120. Obtain the target diameter; wherein, the target diameter is the transverse diameter of the user's cornea;

[0048] S130. Process the corneal bandage lens to obtain a corneal bandage lens; wherein, the diameter of the corneal bandage lens is 0.3-0.8 mm smaller than the target diameter.

[0049] Specifically, when the corneal bandage lens prepared by the corneal bandage lens preparation method provided by the embodiment of the present invention is applied in vitreous surgery, during the operation, t...

Embodiment 2

[0070] On the basis of the above-mentioned embodiment 1, the embodiment of the present invention describes how to obtain a corneal bandage lens with an optimal size.

[0071] To explore the suitable diameter of corneal bandage lens in the operation, set up the test group and the control group: use the corneal bandage lens for treatment, the diameter is 14mm, the material is silicone hydrogel, the center thickness is 0.09mm, and the parthenogenetic modulus is 1.1 .

[0072] Group A, the existing corneal bandage lens group: placed in the perfusate cup for standby;

[0073] Group B, modified corneal bandage lens 1: The transverse diameter of the cornea was measured before operation, and an improved corneal bandage lens of corresponding diameter was made with a corneal trephine equal to the maximum transverse diameter of the cornea, and placed in a perfusate cup for standby;

[0074] Group C, improved corneal bandage lens 2: The transverse diameter of the cornea of ​​the operated...

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Abstract

A corneal bandage lens prepared by the preparation method of the corneal bandage mirror provided by the embodiment of the invention has the advantages that the structure is simple; when the corneal bandage lens is applied to vitreous surgeries, in the surgery, the visual field of doctors is kept clear for a long time; generally greater than 10 minutes, if sharpness has decreased, a small amount ofbalanced salt solution is utilized; washing the surface of the corneal bandage lens; and when the sclera is pressed and the eyeball is rotated, the visual field of the doctor is not obviously deformed in the operation, and after the existing corneal bandage mirror is improved, the corneal bandage mirror is applied to the vitreous operation, so that the burden of an assistant is greatly reduced, the operation efficiency is improved, and the clinical application range of the existing corneal bandage mirror for treatment is expanded. Meanwhile, it is found that after the corneal bandage lens isremoved after the surgery is finished, the corneal epithelium integrity and the corneal epithelium edema degree of the operation eye are superior to those of a traditional balanced salt solution flushing set, and therefore the existing corneal bandage lens for treatment also has a clear protection effect on corneas in vitreous body operation.

Description

technical field [0001] The invention belongs to the technical field of medical equipment, and in particular relates to a corneal bandage mirror and a preparation method thereof. Background technique [0002] Modern minimally invasive vitreous surgery refers to using a special trocar to directly puncture into the vitreous cavity through the bulbar conjunctiva and sclera in the pars plana of the ciliary body to establish three channels without cutting the bulbar conjunctiva. The tube is inserted into the vitreous cavity for surgery. This operation has obvious advantages such as small trauma, no need for suturing incision, mild postoperative inflammatory reaction and short operation time. It has been widely used in ophthalmology, and its indications cover almost all vitreous and retinal diseases and some lens diseases that require surgical treatment in ophthalmology. [0003] The wide application of non-contact wide-angle lenses in modern minimally invasive vitreous surgery h...

Claims

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Application Information

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IPC IPC(8): A61F9/007A61F9/00
CPCA61F9/007A61F9/0017A61F2009/00874A61F2240/001
Inventor 杨晓岗
Owner 杨晓岗
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