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Bag type artificial vitreous body and its mfg method

A manufacturing method and vitreous body technology, applied in ophthalmic treatment, eye implants, etc., can solve the problems of high price, lack of long-term observation of intraocular toxicity, and unaffordable patients, so as to save eyesight, reduce surgical recurrence rate, reduce The effect of recurrence chance

Inactive Publication Date: 2004-03-24
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] Based on this idea, this research designed an adjustable intraocular pressure polymer film capsular artificial vitreous system to achieve this goal. The system includes: polymer membrane bag, drainage and ejection handle. The polymer film is synthesized first, and ethylene and vinyl acetate copolymer is used as the polymer film material. According to the shape and volume of the vitreous cavity of the human eye, a polymer film is used to make a pouch. Drainage is connected to the top of the capsular bag. It is a long drainage tube with a one-way pressure-sensitive valve. Water can be injected through the drainage valve and fixed under the conjunctiva. When the intraocular pressure exceeds normal, the water in the capsular bag will automatically flow out. ; The ejection handle is a device that assists in the implantation of the membrane bag and drainage in the operation, and is composed of a shell, a spring core and a switch. The shell is cylindrical, with a diameter of 8mm, ...

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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 polymer film capsule 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 ophthalmological microsurgery that emerged in the 1970s. It has played a great role in ophthalmology clinical practice, saving countless eyes that are about to become blind. In ophthalmic centers in developed countries, vitreous surgery is second only to cataract extraction and intraocular lens implantation, becoming the second ophthalmic surgery. [0003] 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 a vitreous substitute to fill the vitreous cavity and support or pack the retina to prevent retinal detachment. Since 1891, a variety of vitreou...

Claims

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Application Information

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IPC IPC(8): A61F2/14A61F9/00
Inventor 高前应葛坚
Owner GUANGZHOU VISBOR BIOTECHNOLOGY LTD
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