Colored adhred elastomer

A color viscoelastic agent, viscoelastic agent technology, applied in medical science, surgery, ophthalmic treatment and other directions, can solve problems such as easy visual fatigue, high intraocular pressure in patients, common surgical complications, etc.

Inactive Publication Date: 2007-09-05
SCHOOL OF OPHTHALMOLOGY & OPTOMETRY WENZHOU MEDICAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the viscoelastic agents currently used clinically are all colorless preparations, with poor recognition and attractiveness, low contrast in the surgical field of view, poor three-dimensional effect, low visual efficiency of the surgeon, and easy visual fatigue; The viscoelastic agent is not easy to be completely removed, and the viscoelastic agent remaining in the anterior chamber after surgery can cause high intraocular pressure; it cannot prevent macular damage

Method used

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Examples

Experimental program
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Embodiment Construction

[0006] During the production or use of viscoelastics, coloring substances that meet clinical requirements (such as trypan blue) and colorless viscoelastic substances (such as sodium hyaluronate) are used to physically mix and / or chemically combine to form a A colored viscoelastic with a certain shade (blue). Said colorless viscoelastic substances and dyed substances are not limited to the types mentioned above. The produced colored viscoelastic has a certain color, and also has some basic properties of colorless viscoelastic: neutral isotonicity, sufficient viscoelasticity, sufficient pseudoplasticity, hydrophilicity, good transparency and stability ; No antigen, no pyrogen, no inflammatory reaction, no toxicity, especially no toxicity and no damage to corneal endothelial cells.

[0007] The color of the colored viscoelastic agent can be white, red, blue, yellow, green, purple, orange, cyan, or a mixture of one or more of them, such as camouflage or rainbow, and can also be i...

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PUM

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Abstract

A colored viscoelastic agent for eye operation is prepared from a coloring substance and a non-color viscoelastic substance through physical and/or chemical mixing. It may have one color or the mixture of more colors chosen from white, red, blue, yellow, green, purple, and orange. It can improve the contrast and stereo feeling in visional field of doctor.

Description

technical field [0001] The invention relates to a clinical medical device, in particular to a colored viscoelastic which can be used in ophthalmic microsurgery. Background technique [0002] Viscoelastics are very important in ophthalmic cataract, corneal transplantation, ocular trauma and other operations. They can protect the corneal endothelium, maintain the depth of the anterior chamber, protect intraocular tissues, cooperate with mydriasis, prevent vitreous prolapse, help hemostasis, support the capsular bag, and lubricate Sutures etc. The use of viscoelastics improves the quality and safety of surgery. Commonly used viscoelastics include sodium hyaluronate, methylcellulose, and chondroitin sulfate. However, the viscoelastic agents currently used clinically are all colorless preparations, with poor recognition and attractiveness, low contrast in the surgical field of view, poor three-dimensional effect, low visual efficiency of the surgeon, and easy visual fatigue; T...

Claims

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Application Information

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IPC IPC(8): A61L31/00A61F9/00
Inventor 瞿佳薛安全王勤美张亚平
Owner SCHOOL OF OPHTHALMOLOGY & OPTOMETRY WENZHOU MEDICAL COLLEGE
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