Suprachoroidal pressurizing hydrogel balloon device for rhegmatogenous retinal detachment

A technique for retinal detachment and choroid, applied in the field of suprachoroidal space pressurized hydrogel balloon device, can solve the problems of poor controllability of final shape, short absorption time, high price, etc., so as to increase the success rate of surgery and reduce complications and risk, the effect of protecting the organization

Inactive Publication Date: 2019-04-30
THE SECOND XIANGYA HOSPITAL OF CENT SOUTH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The controllability of this separation process and final shape is poor, and once the position of the pressurized crest deviates, it will not be able to make effective adjustments
Long-acting sodium hyaluronate is currently expe

Method used

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  • Suprachoroidal pressurizing hydrogel balloon device for rhegmatogenous retinal detachment
  • Suprachoroidal pressurizing hydrogel balloon device for rhegmatogenous retinal detachment
  • Suprachoroidal pressurizing hydrogel balloon device for rhegmatogenous retinal detachment

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Embodiment 1

[0027] Such as figure 2 and Figure 4As shown, the present invention is composed of a hydrogel balloon 1, an injection needle 8 and a filler 2. The hydrogel balloon 1 is composed of a balloon main body, a head side blind end sheath 3, a tail end self-closing valve 5 and peripheral elastic bundles. The ring 6 is formed. When it is not inflated, the overall shape is a unilateral blind tube-like oblate sac. The tube wall of the cephalad blind-end sheath 3 is thicker than the wall of the main body of the balloon, forming a tip sheath-like structure that tightly wraps the injection needle 8. During the process of suprachoroidal space separation, the capsule wall and the surrounding tissue of the suprachoroidal space are effectively protected; after the filler 2 is injected, the sheath head of the blind end sheath 3 on the cephalic side expands with the hydrogel balloon 1, and is naturally unfolded and loosened for injection. The package of the needle 8; there is a one-way self-cl...

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Abstract

The invention discloses a suprachoroidal pressurizing hydrogel balloon device for rhegmatogenous retinal detachment. The device is composed of a hydrogel balloon, a syringe needle, and a filler. The hydrogel balloon is composed of a balloon body, a head side blind end sheath, and a tail end self-closed valve. When the hydrogel balloon is not full, the hydrogel balloon is a single side blind gut shape flat round balloon. The blind end sheath wall of the balloon head side is thicker than the balloon body. A sleeve sheath that tightly wraps the syringe needle is formed. A unidirectional self-closed membrane is arranged in the balloon body and divides the long diameter of the balloon into a plurality of chambers. The tail side of the balloon is connected to a hydrogel dual self-closed valve. Asuprachoroidal puncture needle is placed in the pipeline of the dual self-closed valve. After the syringe needle is pulled out, due to the elasticity, the pipe cavity retracts, an external elastic ring applies a contracting force, the pipe cavity is tightly closed, the content in the balloon will not be leaked out, and the syringe needle is provided with scales. The length, width, and height of the pressurizing ridge of the balloon are stable, controllable, and adjustable, the existing time of the ridge is decided by the absorption time of the balloon wall, the individual difference is small,and the surgery success rate is increased.

Description

technical field [0001] The invention relates to a surgical instrument used in ophthalmic retinal diseases in clinical medicine, in particular to a suprachoroidal space pressurized hydrogel balloon device for rhegmatogenous retinal detachment. Background technique [0002] Rhegmatogenous retinal detachment is the most common blinding retinal disease, which is caused by the separation of retinal neuroepithelium and pigment epithelium due to a tear in the retinal neuroepithelium and fluid in the vitreous entering the subretina. There are more males than females at about 3:2, and most of them are adults over 30 years old. There is a difference between the left and right eyes, and the incidence of both eyes is about 15% of the total number of patients. Occur in myopia, especially high myopia. [0003] The basic principle of treatment of rhegmatogenous retinal detachment is to seal the hole, promote the absorption of subretinal fluid and calm the retina, which can be roughly divi...

Claims

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Application Information

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IPC IPC(8): A61F9/007
CPCA61F9/0008A61F9/00727A61F9/00736
Inventor 李芸赵元曹健陈百华谭周辉
Owner THE SECOND XIANGYA HOSPITAL OF CENT SOUTH UNIV
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