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Bag type artificial vitreous body and its mfg. method

A vitreous body and vitreous cavity technology, applied in ophthalmic treatment, eye implants, etc., can solve the problems of unaffordable, expensive, and lack of long-term observation of intraocular toxicity, so as to save vision, reduce chance of recurrence, and reduce surgery Effect on recurrence rate

Inactive Publication Date: 2005-07-27
GUANGZHOU VISBOR BIOTECHNOLOGY LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these hydrogels are still in the experimental stage and have not yet entered clinical application. They lack long-term observation of intraocular toxicity, and the price is very expensive, which is unaffordable even for clinical patients.

Method used

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  • Bag type artificial vitreous body and its mfg. method
  • Bag type artificial vitreous body and its mfg. method
  • Bag type artificial vitreous body and its mfg. method

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Embodiment Construction

[0015] According to this assumption, this study designs a polymer film capsular artificial vitreous system with adjustable intraocular pressure to achieve this goal. System includes: Polymer membrane pouch, drainage and ejection handle. The polymer film is first synthesized, and ethylene and vinyl acetate copolymer are used as the polymer film material. Then, according to the shape and volume of the vitreous cavity of the human eye, a polymer film is used to make a capsular bag. Drainage is connected above the capsular bag, which is a long drainage tube with a one-way pressure-sensitive valve, through which water can be injected and fixed under the conjunctiva, when the intraocular pressure exceeds normal, the water in the capsular bag will flow out automatically ; The ejection handle is a device for assisting the implantation of the membrane bag and drainage during the operation, and is composed of a shell, a spring core and a switch. The outer shell is cylindrical with a d...

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Abstract

The present invention relates to a high-molecular film bag artificial vitreous body capable of regulating intraocular pressure and its making method. It includes bag, drainage-tube and ejection handle. Said bag is suitable to form and volume of human eye vitreous body cavity, the drainage-tube is connected on the upper portion of the bag, said drainage-tube is equipped with drainage valve, the bag and the drainage tube are hid in the ejection handle, and the bag is held by head of the ejection handle.

Description

1. Technical field [0001] The invention relates to a medical biological material, in particular to a macromolecular film bag-type artificial vitreous body with adjustable intraocular pressure, and a manufacturing method of the artificial vitreous body. 2. Background technology [0002] Modern vitreous surgery is an ophthalmic microsurgery that emerged in the 1970s. It plays a great role in ophthalmology clinical practice and saves countless eyes that are about to go blind. In eye centers in developed countries, vitreous surgery is second only to cataract extraction and intraocular lens implantation, becoming the second eye surgery. [0003] The normal vitreous is a special gel-like tissue. After vitreous surgery, the original vitreous body is removed, and the vitreous body cannot be regenerated. It is necessary to use vitreous body substitutes to fill the vitreous body cavity, support or fill the retina, and prevent retinal detachment. Since 1891, various vitreous substitu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/14A61F9/00
Inventor 高前应葛坚
Owner GUANGZHOU VISBOR BIOTECHNOLOGY LTD
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