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transscleral drug delivery system

A transmission system and drug technology, applied in the field of medical devices, can solve the problems of retinal detachment, scleral puncture, unfavorable treatment and other problems that increase the risk of infection, and achieve the effect of reducing the risk of infection and retinal detachment, facilitating treatment, and avoiding vitreous injection

Active Publication Date: 2021-05-28
PEKING UNION MEDICAL COLLEGE HOSPITAL CHINESE ACAD OF MEDICAL SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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 of needing scleral puncture for each administration, it is necessary to design a novel transscleral drug delivery system

Method used

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Embodiment Construction

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

[0014] refer to Figure 1-2 , the specific embodiment adopts the following technical solutions: the transscleral drug delivery system includes 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 has a first small hole 4 , the size and number of the first small hole may not be fixed, the end of the pipeline 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 ocular surface The 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 device 3 is fixed ...

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PUM

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Abstract

The invention discloses a transscleral drug delivery system, which relates to the technical field of medical instruments. It includes a magnetic bead, a pipe, and an ocular surface fixing device. The magnetic bead is located inside the pipe, the side wall of the pipe has a first small hole, and the end of the pipe is provided with a biocompatible ocular surface fixing device. A second small hole is opened on the fixing device, and the ocular surface fixing device is fixed on the surface of the sclera. The present invention utilizes ocular surface point medicine to carry out vitreous cavity administration, avoids multiple vitreous cavity injections, is beneficial to patient treatment, reduces the risk of infection and retinal detachment, 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 drug delivery system. Background technique [0002] Intravitreal injection of medicines for age-related macular degeneration, high myopia, choroidal neovascularization, diabetic retinopathy, macular edema, and macular edema due to venous occlusion has become an important method for the treatment of such fundus diseases, and has achieved good results. Vitreous intravitreal injection for the treatment of vitreoretinal diseases, usually antibody or fusion protein drugs, using a 27-31g needle to inject the drug into the pars plana of the ciliary body, patients usually need multiple injections, and may need up to 12 injections per year. Needle. Multiple intravitreal injections have brought trauma to the patient, and also increased the risk of infection and retinal detachment. Most patients have psychological resistance during repeated injections, which is not c...

Claims

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Application Information

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Patent Type & Authority Patents(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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