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Method and device for reducing intraocular VEGF concentration

A concentration and vitreous cavity technology, which is applied in ophthalmic surgery, suction instruments, etc., to achieve the effect of reducing vitreous hemorrhage

Active Publication Date: 2019-06-28
朗目生命(温州)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Frequent intraocular injections for potential risk of endophthalmitis

Method used

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  • Method and device for reducing intraocular VEGF concentration
  • Method and device for reducing intraocular VEGF concentration
  • Method and device for reducing intraocular VEGF concentration

Examples

Experimental program
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Embodiment Construction

[0022] Combine now figure 1 , figure 2 , image 3 , Figure 4 The present invention is further described, a method for reducing the concentration of VEGF in the eye, placing an inlet channel and an outlet channel for exchanging the vitreous cavity liquid at the corneoscleral limbus 3-4mm, changing and washing the liquid in the vitreous cavity through the inlet channel and the outlet channel, To reduce the concentration of VEGF in the vitreous cavity. The inlet channel and the outlet channel connect the outside of the eye with the inside of the vitreous cavity. The entrance channel and the exit channel are placed 3-4mm away from the corneoscleral limbus. The following devices can be used for vitreous cavity fluid exchange:

[0023] A device used in the method for reducing the concentration of VEGF in the eye, the device includes a ring structure, and the ring structure is made of flexible material. The lower surface of the ring structure is an arc structure similar to th...

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Abstract

The invention relates to a method and device for reducing the intraocular VEGF concentration. The device is used for measuring the VEGF concentration by taking vitreous cavity liquid after the vitrectomy; when the intraocular VEGF concentration is increased, the device is also used for changing and washing the vitreous cavity liquid to reduce the VEGF concentration to prevent and treat a series ofintraocular neovascular diseases secondary to various diseases such as diabetic retinopathy, retinal vein occlusion and the like. The device can be retained in eyeballs for a long time during the treatment of eye diseases, and be taken out after the end of the intraocular treatment.

Description

technical field [0001] The invention specifically relates to the technical field of ophthalmology, in particular to a method and device for reducing the concentration of VEGF in the eye. Background technique [0002] Intraocular neovascular disease is a kind of disease in which retinal ischemia and then retinal and iris neovascularization occur in various diseases such as proliferative diabetic retinopathy, retinal vein occlusion, retinal vasculitis, retinopathy of prematurity, Coats disease and trauma. Retinal neovascularization is prone to rupture due to the lack of normal vascular endothelial cells, leading to vitreous hemorrhage, fiber proliferation and tractive retinal detachment, which seriously affects vision. When the retinal ischemia is severe, new blood vessels appear in the iris to block the aqueous humor outflow channel, causing the intraocular pressure to rise, and neovascular glaucoma occurs. Neovascular glaucoma, loss of vision, eye pain due to high intraocul...

Claims

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Application Information

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IPC IPC(8): A61F9/007A61M1/00
Inventor 梁远波温良江俊宏唐艺华刘成坛
Owner 朗目生命(温州)科技有限公司
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