Sclerocorneal drug delivery system

A delivery system and membrane cornea technology, applied in the field of transscleral corneal drug delivery system, can solve the problems of increasing the risk of infection, retinal detachment, unfavorable treatment, scleral puncture, etc., to reduce the risk of infection and retinal detachment, facilitate treatment, and have application prospects expansive effect

Active Publication Date: 2019-03-08
PEKING UNION MEDICAL COLLEGE HOSPITAL CHINESE ACAD OF MEDICAL SCI
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AI Technical Summary

Problems solved by technology

Multiple intravitreal injections have brought trauma to the patient and increased the risk of infection and retinal detachment. Most patients have psychological resistance during repeated injections, which is not conducive to treatment
[0003] In order to solve the problem that scleral puncture is required for each administration, it is necessary to design a novel transscleral corneal drug delivery system

Method used

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  • Sclerocorneal drug delivery system
  • Sclerocorneal drug delivery system

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Embodiment Construction

[0013] In order to make the technical means, creative features, achievement goals and effects realized by the present invention easy to understand, the present invention will be further described below with reference to the specific embodiments.

[0014] refer to Figure 1-2 , this specific embodiment adopts the following technical scheme: a transscleral corneal drug delivery system, including a magnetic bead 1, a pipeline 2, and an ocular surface fixation device 3, the magnetic bead 1 is located inside the pipeline 2, and the side wall of the pipeline 2 is provided with a first small hole 4. The size and number of the first small holes may not be fixed. The end of the pipe 2 is provided with an ocular surface fixing device 3. The ocular surface fixing device 3 is made of a biocompatible material, and its shape is not limited. The surface fixing device 3 is provided with a second small hole 5, the size of the second small hole 5 may not be fixed, and the ocular surface fixing ...

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Abstract

The invention discloses a sclerocorneal drug delivery system and relates to the technical field of medical instruments. The sclerocorneal drug delivery system comprises a magnetic bead, a duct, an ocular surface fixator; the magnetic bead is arranged inside the duct; the sidewall of the duct is provided with first pores; the end of the duct is provided with the ocular surface fixator that has biocompatibility; the ocular surface fixator is provided with second pores; the ocular surface fixator is fixed to the surface of cornea or sclera. Vitreous cavity drug delivery is achieved through ocularsurface drug dropping; multiple injections in the vitreous cavity are avoided; treatment is benefited for a patient; the infection risk and the retinal detachment risk are decreased; the sclerocorneal drug delivery system has great convenience and safety and is easy to popularize and use.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a transscleral corneal drug delivery system. Background technique [0002] Intravitreal injection for the treatment of age-related macular degeneration, choroidal neovascular membrane in high myopia, diabetic retinopathy, macular edema, and venous occlusion macular edema has become an important means of treating these fundus diseases, and has achieved good results. Intravitreal injection for the treatment of vitreoretinal diseases, usually antibody or fusion protein drugs, using a 27-31g needle into the pars plana to inject the drug, the patient usually needs multiple injections, and it may take up to 12 times a year Needle. Multiple intravitreal injections bring trauma to patients, and also increase the risk of infection and retinal detachment. Most patients have psychological resistance during repeated injections, which is not conducive to treatment. [0003] In order...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F9/00
CPCA61F9/0008
Inventor 戴荣平
Owner PEKING UNION MEDICAL COLLEGE HOSPITAL CHINESE ACAD OF MEDICAL SCI
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